Pub Date : 2026-01-29DOI: 10.1016/j.scowo.2026.100194
H.K. Jahnavi, S.Rajendra Prasad
A novel NiO/MgO nanocomposite was successfully synthesized via a cost-effective sol–gel route and evaluated for its dual functionality in photocatalytic dye degradation and electrochemical sensing. Structural characterization confirmed the formation of a cubic-phase nanocomposite with an average crystallite size of ∼42 nm (Scherrer’s equation) and an optical band gap of 3.77 eV (Tauc’s relation). The photocatalytic activity was investigated toward Acid Red-88 under UV irradiation, achieving 84.7 % degradation within 135 min and following pseudo-first-order kinetics with a rate constant of 0.9793 min⁻¹ and a half-life of ∼66.3 min. Reactive-species trapping experiments revealed hydroxyl radicals (•OH) as the dominant oxidizing species. Electrochemical studies using a NiO/MgO-modified carbon paste electrode showed a significantly higher electroactive surface area (0.678 cm²) than the bare electrode (0.171 cm²), as calculated using the Randles–Sevcik equation. The modified electrode enabled sensitive and selective detection of paracetamol and uric acid over the 10–100 µM range, with low detection limits of 1.106 × 10⁻⁵ M and 8.82 × 10⁻⁶ M, respectively, and well-resolved oxidation peaks allowing simultaneous determination. The results highlight the potential of the NiO/MgO nanocomposite as a multifunctional material for environmental remediation and electrochemical sensing applications.
{"title":"Novel sol-gel synthesis of NiO/MgO nanocomposite for electrochemical studies and photocatalytic dye degradation under UV light","authors":"H.K. Jahnavi, S.Rajendra Prasad","doi":"10.1016/j.scowo.2026.100194","DOIUrl":"10.1016/j.scowo.2026.100194","url":null,"abstract":"<div><div>A novel NiO/MgO nanocomposite was successfully synthesized via a cost-effective sol–gel route and evaluated for its dual functionality in photocatalytic dye degradation and electrochemical sensing. Structural characterization confirmed the formation of a cubic-phase nanocomposite with an average crystallite size of ∼42 nm (Scherrer’s equation) and an optical band gap of 3.77 eV (Tauc’s relation). The photocatalytic activity was investigated toward Acid Red-88 under UV irradiation, achieving 84.7 % degradation within 135 min and following pseudo-first-order kinetics with a rate constant of 0.9793 min⁻¹ and a half-life of ∼66.3 min. Reactive-species trapping experiments revealed hydroxyl radicals (•OH) as the dominant oxidizing species. Electrochemical studies using a NiO/MgO-modified carbon paste electrode showed a significantly higher electroactive surface area (0.678 cm²) than the bare electrode (0.171 cm²), as calculated using the Randles–Sevcik equation. The modified electrode enabled sensitive and selective detection of paracetamol and uric acid over the 10–100 µM range, with low detection limits of 1.106 × 10⁻⁵ M and 8.82 × 10⁻⁶ M, respectively, and well-resolved oxidation peaks allowing simultaneous determination. The results highlight the potential of the NiO/MgO nanocomposite as a multifunctional material for environmental remediation and electrochemical sensing applications.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100194"},"PeriodicalIF":0.0,"publicationDate":"2026-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The widespread release of synthetic dyes from the textile industry poses a serious environmental threat, but current wastewater treatment methods frequently lack sustainability, efficiency, and selectivity. Considering their high surface area, surface functionalization potential, and superior adsorption capabilities, nanomaterials have been extensively studied for dye removal; yet, the existing research is still dispersed, primarily concentrating on isolated modeling techniques or experimental adsorption performance. For the advancement of predictive optimization and mechanistic assessment, there is a prominent research gap in the systematic integration of modern computational, machine learning, and molecular modeling techniques with nanomaterial-based dye removal. In addition to machine learning techniques like artificial neural networks, support vector machines, decision trees, gradient boosting, adaptive neuro-fuzzy inference systems, and hybrid optimization frameworks, response surface methodology is discussed. By thoroughly summarizing current developments at the interface of nanotechnology, data-driven modeling, and molecular-level simulations for textile dye remediation, this review addresses this problem. Although findings of high predicted accuracies of R2 > 0.99 are frequently reported, this review also draws attention to issues with model interpretability, data quality, overfitting, and emphasizing the significance of suitable validation techniques such as k-fold cross-validation and external datasets. Adsorption energetics, binding affinities, and surface interactions at the atomic scale are investigated by molecular docking and molecular dynamics simulations. Environmental effect, process scalability, and adsorbent regeneration are also taken into consideration. This review offers an insightful framework for rational nanomaterial design, data-assisted decision-making, and the creation of effective and sustainable methods for eliminating dyes by integrating process optimization with molecular-level insights.
{"title":"Role of nanomaterials in dye removal with applications of various machine learning and statistical optimization tools for enhancing adsorption","authors":"Nisha Loura , Kavita Rathee , Manvender Singh , Vikas Dhull","doi":"10.1016/j.scowo.2026.100193","DOIUrl":"10.1016/j.scowo.2026.100193","url":null,"abstract":"<div><div>The widespread release of synthetic dyes from the textile industry poses a serious environmental threat, but current wastewater treatment methods frequently lack sustainability, efficiency, and selectivity. Considering their high surface area, surface functionalization potential, and superior adsorption capabilities, nanomaterials have been extensively studied for dye removal; yet, the existing research is still dispersed, primarily concentrating on isolated modeling techniques or experimental adsorption performance. For the advancement of predictive optimization and mechanistic assessment, there is a prominent research gap in the systematic integration of modern computational, machine learning, and molecular modeling techniques with nanomaterial-based dye removal. In addition to machine learning techniques like artificial neural networks, support vector machines, decision trees, gradient boosting, adaptive neuro-fuzzy inference systems, and hybrid optimization frameworks, response surface methodology is discussed. By thoroughly summarizing current developments at the interface of nanotechnology, data-driven modeling, and molecular-level simulations for textile dye remediation, this review addresses this problem. Although findings of high predicted accuracies of R<sup>2</sup> > 0.99 are frequently reported, this review also draws attention to issues with model interpretability, data quality, overfitting, and emphasizing the significance of suitable validation techniques such as k-fold cross-validation and external datasets. Adsorption energetics, binding affinities, and surface interactions at the atomic scale are investigated by molecular docking and molecular dynamics simulations. Environmental effect, process scalability, and adsorbent regeneration are also taken into consideration. This review offers an insightful framework for rational nanomaterial design, data-assisted decision-making, and the creation of effective and sustainable methods for eliminating dyes by integrating process optimization with molecular-level insights.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100193"},"PeriodicalIF":0.0,"publicationDate":"2026-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Algae are the macro/micro scale living plantations that are observed in places rich in moisture and water thus they are produced on a large scale carrying many helpful flavonoids, phenols, and carbohydrates. This review paper examines current technological advances in algal biomass production and their prospective uses in the food business. Various culture methods, including open pond structures, photobioreactors, and closed-loop systems, are thoroughly investigated along with their benefits and drawbacks with the parameters. Furthermore, the nutritional and functional aspects of major algae-derived components, including omega-3 fatty acids, carotenoids phycobiliproteins, and polyunsaturated are discussed, emphasizing their potential health advantages and dietary applications. This study discusses the obstacles to algae production, processing, commercialization, as well as potential solutions to these challenges. Such initiatives, by allowing the introduction of algae-based nutraceuticals into the mainstream food market could make a substantial contribution to supporting sustainable agriculture and addressing global health concerns are detailed.
{"title":"Harnessing marine algae for sustainable nutraceuticals and food chemistry: A comprehensive review on biomass production and applications","authors":"V.C. Deivayanai , A. Saravanan , Y.P. Ragini , A.S. Vickram","doi":"10.1016/j.scowo.2026.100192","DOIUrl":"10.1016/j.scowo.2026.100192","url":null,"abstract":"<div><div>Algae are the macro/micro scale living plantations that are observed in places rich in moisture and water thus they are produced on a large scale carrying many helpful flavonoids, phenols, and carbohydrates. This review paper examines current technological advances in algal biomass production and their prospective uses in the food business. Various culture methods, including open pond structures, photobioreactors, and closed-loop systems, are thoroughly investigated along with their benefits and drawbacks with the parameters. Furthermore, the nutritional and functional aspects of major algae-derived components, including omega-3 fatty acids, carotenoids phycobiliproteins, and polyunsaturated are discussed, emphasizing their potential health advantages and dietary applications. This study discusses the obstacles to algae production, processing, commercialization, as well as potential solutions to these challenges. Such initiatives, by allowing the introduction of algae-based nutraceuticals into the mainstream food market could make a substantial contribution to supporting sustainable agriculture and addressing global health concerns are detailed.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100192"},"PeriodicalIF":0.0,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-18DOI: 10.1016/j.scowo.2026.100191
Utkarsh Sharma, Anita Singh Kirrolia, Narsi R. Bishnoi
To meet the 1.5°C climate targets, the global energy transition requires a versatile carrier to decarbonize "hard-to-abate" sectors (steel, cement, and heavy transport). While hydrogen is a leading candidate, existing literature often treats technological, environmental, and policy dimensions in isolation, creating a fragmented understanding of its true sustainability. This review employs a systematic analysis of over 250 peer-reviewed sources and international policy frameworks (2015–2025) to synthesize production pathways ranging from thermochemical (SMR, gasification) to electrochemical and biological methods. Evaluation is conducted through a multi-dimensional lens focusing on Carbon Intensity (CI), Circular Economy (CE) metrics, and alignment with UN Sustainable Development Goals (SDGs 7, 9, and 13). Our findings demonstrate that while green hydrogen offers near-zero operational emissions, its lifecycle sustainability is contingent upon "Green Chemistry" innovations in membrane materials and catalysts to reduce rare-earth mineral dependency. Comparative analysis reveals that "Blue" hydrogen acts only as a bridge, as its long-term viability is limited by methane leakage and carbon capture efficiencies (<90%). Furthermore, we identify a critical "policy-technology" gap: current global frameworks lack standardized lifecycle assessment (LCA) protocols, which hinders international trade and sustainable finance. This review contributes a novel integrated framework that bridges the gap between laboratory-scale innovations and macro-level policy. We conclude that achieving a net-zero future requires not just "clean" production, but a circular hydrogen economy that prioritizes material recovery and harmonized global certification standards.
{"title":"Advancing sustainable hydrogen: Technological, environmental, and policy perspectives for the global energy transition","authors":"Utkarsh Sharma, Anita Singh Kirrolia, Narsi R. Bishnoi","doi":"10.1016/j.scowo.2026.100191","DOIUrl":"10.1016/j.scowo.2026.100191","url":null,"abstract":"<div><div>To meet the 1.5°C climate targets, the global energy transition requires a versatile carrier to decarbonize \"hard-to-abate\" sectors (steel, cement, and heavy transport). While hydrogen is a leading candidate, existing literature often treats technological, environmental, and policy dimensions in isolation, creating a fragmented understanding of its true sustainability. This review employs a systematic analysis of over 250 peer-reviewed sources and international policy frameworks (2015–2025) to synthesize production pathways ranging from thermochemical (SMR, gasification) to electrochemical and biological methods. Evaluation is conducted through a multi-dimensional lens focusing on Carbon Intensity (CI), Circular Economy (CE) metrics, and alignment with UN Sustainable Development Goals (SDGs 7, 9, and 13). Our findings demonstrate that while green hydrogen offers near-zero operational emissions, its lifecycle sustainability is contingent upon \"Green Chemistry\" innovations in membrane materials and catalysts to reduce rare-earth mineral dependency. Comparative analysis reveals that \"Blue\" hydrogen acts only as a bridge, as its long-term viability is limited by methane leakage and carbon capture efficiencies (<90%). Furthermore, we identify a critical \"policy-technology\" gap: current global frameworks lack standardized lifecycle assessment (LCA) protocols, which hinders international trade and sustainable finance. This review contributes a novel integrated framework that bridges the gap between laboratory-scale innovations and macro-level policy. We conclude that achieving a net-zero future requires not just \"clean\" production, but a circular hydrogen economy that prioritizes material recovery and harmonized global certification standards.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100191"},"PeriodicalIF":0.0,"publicationDate":"2026-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ensuring fish freshness is critical for food safety, yet conventional assessment methods are destructive and unsuitable for real-time monitoring. This study develops a pH-responsive colorimetric film based on a chitosan–polyvinyl alcohol (Cs/PVA) matrix incorporated with red amaranth (Amaranthus tricolor L.) leaves extract (RAE), a highly betacyanin-rich natural pigment source. LC-HRMS analysis identified betacyanin (C₃₀H₃₄N₂O₁₉) as the dominant metabolite with the highest ion area (1.15 ×10 ¹⁰), alongside phenolics, carotenoids, and alkaloids that may enhance stability and responsiveness. UV–Vis characterization revealed a strong absorption peak at 535 nm and a total betacyanin content of 261 mg/L, with marked spectral shifts and color degradation above pH 9. Five film formulations were produced by varying extract volume of 1–5 mL (RAE1–RAE5), corresponding to 0.261–1.305 mg/L betacyanin. Film thickness increased with pigment loading (0.085 ± 0.01–0.138 ± 0.02 mm). FESEM revealed improved uniformity in RAE4, while FTIR confirmed strong hydrogen-bonding interactions between betacyanin and the Cs/PVA matrix. The films displayed distinct color transitions across pH 5–9, with ΔE values exceeding 50 for RAE4 and RAE5. Ammonia-vapor assays demonstrated high sensitivity, achieving > 50 % response within 180 min at 1 % NH₃. Application to tilapia fillets stored under refrigerated (6 ± 1 °C, 11 days) and ambient (23 ± 1 °C, 24 h) conditions showed strong correlation between film responses, pH elevation, and sensory quality decline. These findings establish red amaranth as a potent natural pigment and identify Cs/PVA-RAE4 and Cs/PVA-RAE5 films as sensitive, stable, and scalable freshness indicators suitable for real-time food monitoring.
{"title":"Red amaranth betacyanin–incorporated Cs/PVA colorimetric films as smart sensors for real-time fish freshness monitoring","authors":"Alfianita Nuril Hidayaty , Saidun Fiddaroini , Ahmad Luthfi Fahmi , Dea Luthfianti Maharani , Qonitah Fardiyah , Arie Srihardyastutie , Akhmad Sabarudin","doi":"10.1016/j.scowo.2026.100190","DOIUrl":"10.1016/j.scowo.2026.100190","url":null,"abstract":"<div><div>Ensuring fish freshness is critical for food safety, yet conventional assessment methods are destructive and unsuitable for real-time monitoring. This study develops a pH-responsive colorimetric film based on a chitosan–polyvinyl alcohol (Cs/PVA) matrix incorporated with red amaranth (<em>Amaranthus tricolor</em> L.) leaves extract (RAE), a highly betacyanin-rich natural pigment source. LC-HRMS analysis identified betacyanin (C₃₀H₃₄N₂O₁₉) as the dominant metabolite with the highest ion area (1.15 ×10 ¹⁰), alongside phenolics, carotenoids, and alkaloids that may enhance stability and responsiveness. UV–Vis characterization revealed a strong absorption peak at 535 nm and a total betacyanin content of 261 mg/L, with marked spectral shifts and color degradation above pH 9. Five film formulations were produced by varying extract volume of 1–5 mL (RAE1–RAE5), corresponding to 0.261–1.305 mg/L betacyanin. Film thickness increased with pigment loading (0.085 ± 0.01–0.138 ± 0.02 mm). FESEM revealed improved uniformity in RAE4, while FTIR confirmed strong hydrogen-bonding interactions between betacyanin and the Cs/PVA matrix. The films displayed distinct color transitions across pH 5–9, with ΔE values exceeding 50 for RAE4 and RAE5. Ammonia-vapor assays demonstrated high sensitivity, achieving > 50 % response within 180 min at 1 % NH₃. Application to tilapia fillets stored under refrigerated (6 ± 1 °C, 11 days) and ambient (23 ± 1 °C, 24 h) conditions showed strong correlation between film responses, pH elevation, and sensory quality decline. These findings establish red amaranth as a potent natural pigment and identify Cs/PVA-RAE4 and Cs/PVA-RAE5 films as sensitive, stable, and scalable freshness indicators suitable for real-time food monitoring.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100190"},"PeriodicalIF":0.0,"publicationDate":"2026-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-14DOI: 10.1016/j.scowo.2026.100187
Ojima Z. Wada , Abimbola O. Ige , Bamise I. Egbewole , David B. Olawade
Wastewater management has undergone significant evolution from medieval practices, where wastewater was directly discharged into surface water bodies, to modern approaches that emphasise not only treatment for public health but also the recovery of valuable resources. This evolution reflects a shift from unidimensional wastewater treatment, focused solely on health protection, to a multipurpose framework that includes water reclamation, reuse, and resource recovery. This narrative review assesses recent developments in wastewater resource recovery technologies and highlights global disparities in their adoption. By analysing research outputs using relevant keywords such as "Circular Economy", "Wastewater", and "Resource Recovery", the review reveals a significant concentration of research and technological development in the Global North, particularly in Europe and East Asia (mainly China). In contrast, regions like Sub-Saharan Africa (excluding Southern Africa) and parts of Southeast Asia remain largely underserved, hindered by limited infrastructure, inadequate funding, and insufficient institutional support. Key resources recovered from wastewater include nutrients and soil amendments, feed and bioproducts, bioenergy, and metals. Out of 61 studies synthesised and comparatively analysed, 39 % originated from Europe, while none emanated from West and Central Africa, illustrating a stark imbalance in research and innovation. The implications of these disparities are far-reaching. Recommendations for advancing wastewater resource recovery globally were offered, emphasising the importance of inclusive and equitable progress to ensure that no region is left behind in this critical aspect of sustainable development.
{"title":"Circular economy from wastewater resource recovery: A review of recent advances and global disparities","authors":"Ojima Z. Wada , Abimbola O. Ige , Bamise I. Egbewole , David B. Olawade","doi":"10.1016/j.scowo.2026.100187","DOIUrl":"10.1016/j.scowo.2026.100187","url":null,"abstract":"<div><div>Wastewater management has undergone significant evolution from medieval practices, where wastewater was directly discharged into surface water bodies, to modern approaches that emphasise not only treatment for public health but also the recovery of valuable resources. This evolution reflects a shift from unidimensional wastewater treatment, focused solely on health protection, to a multipurpose framework that includes water reclamation, reuse, and resource recovery. This narrative review assesses recent developments in wastewater resource recovery technologies and highlights global disparities in their adoption. By analysing research outputs using relevant keywords such as \"Circular Economy\", \"Wastewater\", and \"Resource Recovery\", the review reveals a significant concentration of research and technological development in the Global North, particularly in Europe and East Asia (mainly China). In contrast, regions like Sub-Saharan Africa (excluding Southern Africa) and parts of Southeast Asia remain largely underserved, hindered by limited infrastructure, inadequate funding, and insufficient institutional support. Key resources recovered from wastewater include nutrients and soil amendments, feed and bioproducts, bioenergy, and metals. Out of 61 studies synthesised and comparatively analysed, 39 % originated from Europe, while none emanated from West and Central Africa, illustrating a stark imbalance in research and innovation. The implications of these disparities are far-reaching. Recommendations for advancing wastewater resource recovery globally were offered, emphasising the importance of inclusive and equitable progress to ensure that no region is left behind in this critical aspect of sustainable development.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100187"},"PeriodicalIF":0.0,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The increasing concern towards the environmental impact of lignocellulosic biomass waste generated during agro-industrial processes has triggered the need for its sustainable bioconversion into high-value products. Among others, rhamnolipid biosurfactants with varied and novel applications have surfaced as key products. This review is aimed at describing recent advancement in efficient pretreatment of lignocellulosic biomass to obtain fermentable sugars which are needed for microbial rhamnolipid production. Furthermore, the review also addresses the versatile qualities of rhamnolipids including their use in agriculture, nanotechnology and medicine, accentuating their effectiveness as multifunctional agents and as environmentally friendly substances. The production of rhamnolipids from lignocellulosic biomass strengthens the availability of sustainable green surfactants while at the same time adding value to agricultural industrial waste, thus advancing the circular bioeconomy and sustainability in various sectors.
{"title":"Rhamnolipid production from agro-industrial waste: A new vista in green chemistry for production of ecofriendly surfactants","authors":"Medhashree Verma , Rajesh Kumar , Aishwary Purohit , Amar Jyoti Das","doi":"10.1016/j.scowo.2026.100189","DOIUrl":"10.1016/j.scowo.2026.100189","url":null,"abstract":"<div><div>The increasing concern towards the environmental impact of lignocellulosic biomass waste generated during agro-industrial processes has triggered the need for its sustainable bioconversion into high-value products. Among others, rhamnolipid biosurfactants with varied and novel applications have surfaced as key products. This review is aimed at describing recent advancement in efficient pretreatment of lignocellulosic biomass to obtain fermentable sugars which are needed for microbial rhamnolipid production. Furthermore, the review also addresses the versatile qualities of rhamnolipids including their use in agriculture, nanotechnology and medicine, accentuating their effectiveness as multifunctional agents and as environmentally friendly substances. The production of rhamnolipids from lignocellulosic biomass strengthens the availability of sustainable green surfactants while at the same time adding value to agricultural industrial waste, thus advancing the circular bioeconomy and sustainability in various sectors.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100189"},"PeriodicalIF":0.0,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-13DOI: 10.1016/j.scowo.2026.100188
Is Fatimah , Lilis Indah Sari , Nunung Nurlaela , Suresh Sagadevan , Azlan Kamari , Won Chun-Oh , Ruey-an Doong
Bentonite-supported NiFe2O4 nanocomposites with magnetic properties were synthesized via a facile coprecipitation followed by hydrothermal procedure. X-ray diffraction (XRD) and x-ray photoelectron spectroscopy (XPS) measurements reflected a homogeneous dispersion of NiFe2O4 into bentonite support which the crystallite size is increased along with increasing sintering temperature ranging at 400–600 °C. Textural properties such as specific surface area by the characterization using gas sorption analyser and scanning electron microscopy (SEM) analysis revealed the improved porosity leading to the higher specific surface area and porosity by sintering at higher temperature, which confirmed by scanning electron microscope (SEM) and transmission electron microscope (TEM) analyses, meanwhile the magnetic feature determined using vibrating sample magnetometer (VSM) showed a reduced magnetism along with increased surface area. The nanocomposites exhibited the catalytic activity in the catalytic wet peroxidation of methyl violet (MV) removal that possessed a participated adsorption in the surface mechanism. Faster MV degradation is achievable over ultrasound-assisted and microwave-assisted catalytic process suggesting the time-efficient intensifications. An almost complete removal of MV was gained over the prepared samples for 120 min, 60 min, and 10 min over conventional, US-assisted, and MW-assisted reaction conditions, respectively. The nanocomposites demonstrated a reusability with a maintained degradation efficiency until 5th cycle of usage.
{"title":"Recyclable magnetic catalyst of bentonite-supported NiFe2O4 for catalytic wet peroxidation in dye-contaminated water","authors":"Is Fatimah , Lilis Indah Sari , Nunung Nurlaela , Suresh Sagadevan , Azlan Kamari , Won Chun-Oh , Ruey-an Doong","doi":"10.1016/j.scowo.2026.100188","DOIUrl":"10.1016/j.scowo.2026.100188","url":null,"abstract":"<div><div>Bentonite-supported NiFe<sub>2</sub>O<sub>4</sub> nanocomposites with magnetic properties were synthesized via a facile coprecipitation followed by hydrothermal procedure. X-ray diffraction (XRD) and x-ray photoelectron spectroscopy (XPS) measurements reflected a homogeneous dispersion of NiFe<sub>2</sub>O<sub>4</sub> into bentonite support which the crystallite size is increased along with increasing sintering temperature ranging at 400–600 °C. Textural properties such as specific surface area by the characterization using gas sorption analyser and scanning electron microscopy (SEM) analysis revealed the improved porosity leading to the higher specific surface area and porosity by sintering at higher temperature, which confirmed by scanning electron microscope (SEM) and transmission electron microscope (TEM) analyses, meanwhile the magnetic feature determined using vibrating sample magnetometer (VSM) showed a reduced magnetism along with increased surface area. The nanocomposites exhibited the catalytic activity in the catalytic wet peroxidation of methyl violet (MV) removal that possessed a participated adsorption in the surface mechanism. Faster MV degradation is achievable over ultrasound-assisted and microwave-assisted catalytic process suggesting the time-efficient intensifications. An almost complete removal of MV was gained over the prepared samples for 120 min, 60 min, and 10 min over conventional, US-assisted, and MW-assisted reaction conditions, respectively. The nanocomposites demonstrated a reusability with a maintained degradation efficiency until 5th cycle of usage.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100188"},"PeriodicalIF":0.0,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Current protocols for digesting non-plastic organic matter (OM) in soil before microplastic (MP) analysis are often time-consuming, particularly for samples with high organic content. This study modifies a Fenton-assisted wet peroxide oxidation (WPO) approach to shorten processing time while maintaining effective OM removal. The study was conducted using riverbed soil, roadside and garden soil. 10-gram soil for each sample was taken and extracted in triplicate. Thus, a total of 45 samples and 9 control samples were prepared. The sample digestion was carried out using 20 ml volume of 30 % hydrogen peroxide (H2O2) initially for 2 h, and then adding 20 ml of 0.05 M FeSO4 solution. Continuous stirring was used to carry out the digesting process while keeping the temperature at 75°C. The method achieved OM removal efficiencies of 89.92 %, 61.49 %, and 81.91 % for riverbed, roadside, and garden soils, respectively, with a total digestion time of only 4 h. This represents a reduction in processing time of over 90 % compared to a common 72-hour protocol (Method 1), while achieving comparable microplastic recovery rates (50–60 %).
{"title":"A fenton-assisted digestion protocol for rapid microplastic extraction, from organic-rich soils","authors":"Anish Verma , Revati Vijayrao Jagdhan , Naveen Chand , Subodh Sharma , Meenakshi Mittal , Sanjeev Kumar Prajapati","doi":"10.1016/j.scowo.2026.100186","DOIUrl":"10.1016/j.scowo.2026.100186","url":null,"abstract":"<div><div>Current protocols for digesting non-plastic organic matter (OM) in soil before microplastic (MP) analysis are often time-consuming, particularly for samples with high organic content. This study modifies a Fenton-assisted wet peroxide oxidation (WPO) approach to shorten processing time while maintaining effective OM removal. The study was conducted using riverbed soil, roadside and garden soil. 10-gram soil for each sample was taken and extracted in triplicate. Thus, a total of 45 samples and 9 control samples were prepared. The sample digestion was carried out using 20 ml volume of 30 % hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) initially for 2 h, and then adding 20 ml of 0.05 M FeSO<sub>4</sub> solution. Continuous stirring was used to carry out the digesting process while keeping the temperature at 75°C. The method achieved OM removal efficiencies of 89.92 %, 61.49 %, and 81.91 % for riverbed, roadside, and garden soils, respectively, with a total digestion time of only 4 h. This represents a reduction in processing time of over 90 % compared to a common 72-hour protocol (Method 1), while achieving comparable microplastic recovery rates (50–60 %).</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100186"},"PeriodicalIF":0.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sustainable ecosystem management promotes eco-friendly agricultural techniques, including metal and metal oxide nanomaterials (MONPs) for enhancing crop production. Biologically synthesized nanoparticles from plants, bacteria, and fungi contribute to their sustainable characteristics. With sizes ranging from 1 to 100 nm, nanoparticles offer safer and more efficient mechanisms than conventional fertilizers and pesticides. Their use as nano-fertilizers, nano-pesticides, and antimicrobial agents improves soil quality, enhances crop productivity, and reduces environmental impact. Despite their potential, MONPs remain underutilized in agriculture, requiring further research to uncover their full benefits. Recent advances highlight biosynthesis methods using plants and microbes for cost-effective and ecological MONPs. Their interaction with plants enhances nutrient uptake, photosynthesis, antioxidative enzyme levels, and gene regulation, improving yield and stress resistance. Additionally, MONPs show promise in agricultural waste management and as nano-biosensors for detecting nutrients, pathogens, and toxins, safeguarding plant and soil health. Nanotechnology offers solutions to challenges in modern agriculture, such as soil degradation, pest infestation, and inefficient agrochemicals. NMs can mitigate abiotic stress by mimicking antioxidative enzymes, ensuring crop resilience in harsh environments. However, research on their fate, mobility, and toxicity in soil is limited, with most studies confined to laboratories. Understanding plant-nanoparticle interactions will refine their application in sustainable agriculture. This review underscores the need for extensive research to integrate MONPs into agriculture effectively. With increasing food demands and environmental concerns, nano-enabled agriculture holds promise for improving crop yield, soil fertility, and sustainable farming practices.
{"title":"Exploring the potential of metal and metal oxide nanomaterials towards modern-day agriculture: A recent overview","authors":"Sradhanjali Raut , Swetaleena Satapathy , Tanushree Sahoo , Amisha Sahukar , Sushree Sarada Mohanty , Annapurna Sahoo , Susanta Kumar Biswal , Gagan Kumar Panigrahi , Shraban Kumar Sahoo","doi":"10.1016/j.scowo.2026.100184","DOIUrl":"10.1016/j.scowo.2026.100184","url":null,"abstract":"<div><div>Sustainable ecosystem management promotes eco-friendly agricultural techniques, including metal and metal oxide nanomaterials (MONPs) for enhancing crop production. Biologically synthesized nanoparticles from plants, bacteria, and fungi contribute to their sustainable characteristics. With sizes ranging from 1 to 100 nm, nanoparticles offer safer and more efficient mechanisms than conventional fertilizers and pesticides. Their use as nano-fertilizers, nano-pesticides, and antimicrobial agents improves soil quality, enhances crop productivity, and reduces environmental impact. Despite their potential, MONPs remain underutilized in agriculture, requiring further research to uncover their full benefits. Recent advances highlight biosynthesis methods using plants and microbes for cost-effective and ecological MONPs. Their interaction with plants enhances nutrient uptake, photosynthesis, antioxidative enzyme levels, and gene regulation, improving yield and stress resistance. Additionally, MONPs show promise in agricultural waste management and as nano-biosensors for detecting nutrients, pathogens, and toxins, safeguarding plant and soil health. Nanotechnology offers solutions to challenges in modern agriculture, such as soil degradation, pest infestation, and inefficient agrochemicals. NMs can mitigate abiotic stress by mimicking antioxidative enzymes, ensuring crop resilience in harsh environments. However, research on their fate, mobility, and toxicity in soil is limited, with most studies confined to laboratories. Understanding plant-nanoparticle interactions will refine their application in sustainable agriculture. This review underscores the need for extensive research to integrate MONPs into agriculture effectively. With increasing food demands and environmental concerns, nano-enabled agriculture holds promise for improving crop yield, soil fertility, and sustainable farming practices.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100184"},"PeriodicalIF":0.0,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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