Pub Date : 2025-12-30DOI: 10.1016/j.inoche.2025.116126
Leena V. Bora
Membrane science and technology has enabled real-time separation and purification, including water purification and industrial separations. However, the performance efficiency of traditional designs is limited by the need for slower trial-and-error-based experiments, which may also be erroneous. Machine learning (ML) enables rapid assessment of membrane performance by analysing historical and statistical data on features and parameters related to membrane materials and their properties, solute-solvent interactions, and system operational conditions. Leveraging the benefits of ML assists in proposing membrane designs with higher performance metrics for the intended application. This paper outlines the present-day state-of-the-art in the field of ML applied to membrane technology for fuel cells, desalination, gas separations, and solvent purification. It critically discusses and analyzes the associated inventions contributed by researchers, serving to formulate the best ML practices for selecting and designing membranes with affordable prices and excellent performance, while also offsetting the involved trade-offs. Following a discussion of some simple yet significant ML fundamentals, the pathways for retrieving data from database libraries and sources, as well as data-driven prediction of membrane material-structure-property interactions, have been addressed. Finally, challenges and future perspectives are highlighted, with the hope of providing directions for forthcoming attempts toward addressing the research gaps.
{"title":"Leveraging the benefits of machine learning in membrane technology: A state-of-the-art review","authors":"Leena V. Bora","doi":"10.1016/j.inoche.2025.116126","DOIUrl":"10.1016/j.inoche.2025.116126","url":null,"abstract":"<div><div>Membrane science and technology has enabled real-time separation and purification, including water purification and industrial separations. However, the performance efficiency of traditional designs is limited by the need for slower trial-and-error-based experiments, which may also be erroneous. Machine learning (ML) enables rapid assessment of membrane performance by analysing historical and statistical data on features and parameters related to membrane materials and their properties, solute-solvent interactions, and system operational conditions. Leveraging the benefits of ML assists in proposing membrane designs with higher performance metrics for the intended application. This paper outlines the present-day state-of-the-art in the field of ML applied to membrane technology for fuel cells, desalination, gas separations, and solvent purification. It critically discusses and analyzes the associated inventions contributed by researchers, serving to formulate the best ML practices for selecting and designing membranes with affordable prices and excellent performance, while also offsetting the involved trade-offs. Following a discussion of some simple yet significant ML fundamentals, the pathways for retrieving data from database libraries and sources, as well as data-driven prediction of membrane material-structure-property interactions, have been addressed. Finally, challenges and future perspectives are highlighted, with the hope of providing directions for forthcoming attempts toward addressing the research gaps.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116126"},"PeriodicalIF":5.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-30DOI: 10.1016/j.inoche.2025.116125
Maryam Javed , Tahir Iqbal , Sumera Afsheen , Mohsin Ijaz , Yasir Hussain , Muhammad Yousaf , Atif Mossad Ali , M.A. Sayed
Increase in antimicrobial resistance among pathogens and release of advanced pollutants with complex molecular structure into water, has lead to increase in fruit wastage and increased environmental pollution that needs to be tackled. In this research, Pure and Cu-doped SnO2 nanoparticles were synthesized using hydrothermal approach by using varied Cu-dopant concentration (2%,4%,6%,8%). In order to address structural, morphological, vibrational and optical properties of the synthesized nanoparticles, different characterization techniques such as UV-Vis, PL, FTIR, XRD and SEM were carried out. 6%Cu-doped SnO2 was found to have highest photocatalytic efficiency of 84.3% for MB dye and 58% for Ciprofloxacin. The optimal 6%Cu-doped SnO2 was then applied to Vitis vinifera fruit as coating and shelf life analysis was performed for 5 days using different techniques such as Fourier transform infrared spectroscopy, Total soluble solid and Titration acidity test. Cu-doped SnO2 nanoparticles showed remarkable ability for shelf life enhancement of Vitis vinifera in comparison to untreated control. These findings thus demonstrates potential use of Cu-doped SnO2 nanoparticles for shelf life enhancement of fruits by its incorporation in storage environment and its use as promising photo catalyst.
{"title":"Hydrothermally synthesized Cu-doped SnO2 nanoparticles: Dual functionality in photocatalytic degradation and fruit shelf life enhancement","authors":"Maryam Javed , Tahir Iqbal , Sumera Afsheen , Mohsin Ijaz , Yasir Hussain , Muhammad Yousaf , Atif Mossad Ali , M.A. Sayed","doi":"10.1016/j.inoche.2025.116125","DOIUrl":"10.1016/j.inoche.2025.116125","url":null,"abstract":"<div><div>Increase in antimicrobial resistance among pathogens and release of advanced pollutants with complex molecular structure into water, has lead to increase in fruit wastage and increased environmental pollution that needs to be tackled. In this research, Pure and Cu-doped SnO<sub>2</sub> nanoparticles were synthesized using hydrothermal approach by using varied Cu-dopant concentration (2%,4%,6%,8%). In order to address structural, morphological, vibrational and optical properties of the synthesized nanoparticles, different characterization techniques such as UV-Vis, PL, FTIR, XRD and SEM were carried out. 6%Cu-doped SnO<sub>2</sub> was found to have highest photocatalytic efficiency of 84.3% for MB dye and 58% for Ciprofloxacin. The optimal 6%Cu-doped SnO<sub>2</sub> was then applied to Vitis vinifera fruit as coating and shelf life analysis was performed for 5 days using different techniques such as Fourier transform infrared spectroscopy, Total soluble solid and Titration acidity test. Cu-doped SnO<sub>2</sub> nanoparticles showed remarkable ability for shelf life enhancement of Vitis vinifera in comparison to untreated control. These findings thus demonstrates potential use of Cu-doped SnO<sub>2</sub> nanoparticles for shelf life enhancement of fruits by its incorporation in storage environment and its use as promising photo catalyst.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116125"},"PeriodicalIF":5.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The development of cost-effective and sustainable catalysts is crucial for replacing noble-metal systems in selective organic transformations. Here, the present work addresses a green and scalable route for the synthesis of graphene-supported iron oxide (G-FeO) nanocomposites via a simple impregnation-calcination method. The resulting nanocomposite consists of uniformly dispersed FeO nanoparticles with an average crystallite size of ∼9–10 nm, strongly anchored onto graphene sheets. Comprehensive characterization using UV–Vis, FTIR, TEM, XRD, SEM/EDS, and XPS confirmed nanoscale crystallinity, robust Fe-graphene bonding, and the coexistence of mixed-valence Fe2+/Fe3+ states. Catalytic performance was evaluated in the aerobic oxidation of benzyl alcohol under ambient air. The G-FeO catalyst achieved 94 % conversion and 98 % selectivity to benzaldehyde at 120 °C, far outperforming metal-free graphene and unsupported Fe oxides. Notably, the catalyst exhibited excellent durability, retaining >90 % of its activity over three successive cycles with negligible structural degradation, as confirmed by post-reaction analyses. The enhanced activity is attributed to the synergistic interplay between Fe2+/Fe3+ redox centres and graphene-mediated electron transport, which enables efficient oxygen activation and suppresses charge recombination. This study demonstrates that G-FeO nanocomposites provide a robust, recyclable, and environmentally benign alternative to noble-metal catalysts. Their simple synthesis, high efficiency, and strong structure-property correlation highlight their promise not only for selective oxidations but also for broader applications in green organic synthesis, energy conversion, and environmental remediation.
{"title":"Green and cost-effective production of highly efficient 2D-graphene/Nano-metal heterogeneous systems for organic transformations","authors":"Balathandapani Narayanan , Vanaraj Ramkumar , Datchinamoorthy Thirupathi , Ramasamy Uthayamalar , Gunasekaran Raja , Mayakrishnan Gopiraman , Seong Cheol Kim , Ganesan Ayyannan","doi":"10.1016/j.inoche.2025.116119","DOIUrl":"10.1016/j.inoche.2025.116119","url":null,"abstract":"<div><div>The development of cost-effective and sustainable catalysts is crucial for replacing noble-metal systems in selective organic transformations. Here, the present work addresses a green and scalable route for the synthesis of graphene-supported iron oxide (G-FeO) nanocomposites via a simple impregnation-calcination method. The resulting nanocomposite consists of uniformly dispersed FeO nanoparticles with an average crystallite size of ∼9–10 nm, strongly anchored onto graphene sheets. Comprehensive characterization using UV–Vis, FTIR, TEM, XRD, SEM/EDS, and XPS confirmed nanoscale crystallinity, robust Fe-graphene bonding, and the coexistence of mixed-valence Fe<sup>2+</sup>/Fe<sup>3+</sup> states. Catalytic performance was evaluated in the aerobic oxidation of benzyl alcohol under ambient air. The G-FeO catalyst achieved 94 % conversion and 98 % selectivity to benzaldehyde at 120 °C, far outperforming metal-free graphene and unsupported Fe oxides. Notably, the catalyst exhibited excellent durability, retaining >90 % of its activity over three successive cycles with negligible structural degradation, as confirmed by post-reaction analyses. The enhanced activity is attributed to the synergistic interplay between Fe<sup>2+</sup>/Fe<sup>3+</sup> redox centres and graphene-mediated electron transport, which enables efficient oxygen activation and suppresses charge recombination. This study demonstrates that G-FeO nanocomposites provide a robust, recyclable, and environmentally benign alternative to noble-metal catalysts. Their simple synthesis, high efficiency, and strong structure-property correlation highlight their promise not only for selective oxidations but also for broader applications in green organic synthesis, energy conversion, and environmental remediation.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116119"},"PeriodicalIF":5.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-30DOI: 10.1016/j.inoche.2025.116129
Yanfei Zhou , Yangyang Chen , Mengjie Liu , Shikun Hai , Yanying Cai , Qian Wang , Gang Qin , Yue Li
A self-supported Cum(Mo3S11)n-NF catalyst was synthesized via a coordination-driven self-assembly strategy for efficient Fenton-like degradation of ranitidine (RAN). Structural analyses confirmed the formation of a Cu-S-Mo interface that facilitated charge redistribution and enhanced electron transfer between active sites. Under optimal conditions, this catalyst achieves a 97.14 % RAN degradation rate within 60 min. Quenching experiments and electron paramagnetic resonance (EPR) results indicate that •OH is the dominant active species, accompanied by the presence of •O2− and 1O2. XPS spectroscopy revealed redox reactions between Cu2+/Cu+ and Mo4+/Mo5+/Mo6+, confirming their synergistic role in H2O2 activation and Fe3+/Fe2+ cycling. Density functional theory calculations indicated that Cu insertion enhanced charge delocalization effects and increased the exposure of molybdenum active sites. Additionally, this catalyst demonstrates excellent adaptability across various aqueous matrices while minimizing the presence of iron sludge in the solution. This study highlights the significance of interfacial electron regulation in metal sulfides, which holds great promise for achieving sustainable advanced oxidation processes in wastewater purification.
{"title":"Interfacial electronic regulation of a self-supported Cum(Mo3S11)n-NF catalyst for efficient Fenton-like degradation of ranitidine","authors":"Yanfei Zhou , Yangyang Chen , Mengjie Liu , Shikun Hai , Yanying Cai , Qian Wang , Gang Qin , Yue Li","doi":"10.1016/j.inoche.2025.116129","DOIUrl":"10.1016/j.inoche.2025.116129","url":null,"abstract":"<div><div>A self-supported Cu<sub>m</sub>(Mo<sub>3</sub>S<sub>11</sub>)<sub>n</sub>-NF catalyst was synthesized via a coordination-driven self-assembly strategy for efficient Fenton-like degradation of ranitidine (RAN). Structural analyses confirmed the formation of a Cu-S-Mo interface that facilitated charge redistribution and enhanced electron transfer between active sites. Under optimal conditions, this catalyst achieves a 97.14 % RAN degradation rate within 60 min. Quenching experiments and electron paramagnetic resonance (EPR) results indicate that •OH is the dominant active species, accompanied by the presence of •O<sub>2</sub><sup>−</sup> and <sup>1</sup>O<sub>2</sub>. XPS spectroscopy revealed redox reactions between Cu<sup>2+</sup>/Cu<sup>+</sup> and Mo<sup>4+</sup>/Mo<sup>5+</sup>/Mo<sup>6+</sup>, confirming their synergistic role in H<sub>2</sub>O<sub>2</sub> activation and Fe<sup>3+</sup>/Fe<sup>2+</sup> cycling. Density functional theory calculations indicated that Cu insertion enhanced charge delocalization effects and increased the exposure of molybdenum active sites. Additionally, this catalyst demonstrates excellent adaptability across various aqueous matrices while minimizing the presence of iron sludge in the solution. This study highlights the significance of interfacial electron regulation in metal sulfides, which holds great promise for achieving sustainable advanced oxidation processes in wastewater purification.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116129"},"PeriodicalIF":5.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-30DOI: 10.1016/j.inoche.2025.116123
Sara Payamifar , Majid Abdouss , Ahmad Poursattar Marjani
The swift advancement in nitro compound reduction has become a powerful and widely applied transformation, enabling the formation of amino-containing compounds. In organic chemistry, amines play a crucial role as intermediates in the synthesis of pharmaceuticals, bioactive molecules, dyes, polymers, and various other chemical products. Anchoring homogeneous catalysts onto solid supports combines the advantages of both homogeneous and heterogeneous catalysis, making it a prominent area of modern catalysis research. Magnetic nanoparticles (MNPs) have attracted considerable attention owing to their distinctive attributes, including a high surface-to-volume ratio, low toxicity, thermal stability, excellent catalytic activity, and ease of surface functionalization and dispersion. These magnetic nanocatalysts can be effortlessly recovered from reaction mixtures using an external magnet, eliminating the need for complex separation techniques such as filtration or centrifugation. Recently, the development of gold nanocatalysts supported on magnetic nanoparticles has marked a new chapter in gold catalysis. Their catalytic efficiency has been explored across a range of organic transformations. This review explicitly highlights the use of magnetically recoverable gold nanocatalysts for the reduction of nitroarenes, covering the period from 2020 to 2025.
{"title":"Recent progress on magnetic gold nanocatalysts for nitroarene reduction","authors":"Sara Payamifar , Majid Abdouss , Ahmad Poursattar Marjani","doi":"10.1016/j.inoche.2025.116123","DOIUrl":"10.1016/j.inoche.2025.116123","url":null,"abstract":"<div><div>The swift advancement in nitro compound reduction has become a powerful and widely applied transformation, enabling the formation of amino-containing compounds. In organic chemistry, amines play a crucial role as intermediates in the synthesis of pharmaceuticals, bioactive molecules, dyes, polymers, and various other chemical products. Anchoring homogeneous catalysts onto solid supports combines the advantages of both homogeneous and heterogeneous catalysis, making it a prominent area of modern catalysis research. Magnetic nanoparticles (MNPs) have attracted considerable attention owing to their distinctive attributes, including a high surface-to-volume ratio, low toxicity, thermal stability, excellent catalytic activity, and ease of surface functionalization and dispersion. These magnetic nanocatalysts can be effortlessly recovered from reaction mixtures using an external magnet, eliminating the need for complex separation techniques such as filtration or centrifugation. Recently, the development of gold nanocatalysts supported on magnetic nanoparticles has marked a new chapter in gold catalysis. Their catalytic efficiency has been explored across a range of organic transformations. This review explicitly highlights the use of magnetically recoverable gold nanocatalysts for the reduction of nitroarenes, covering the period from 2020 to 2025.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116123"},"PeriodicalIF":5.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-30DOI: 10.1016/j.inoche.2025.116083
Lin Guan , Su Yan , Yangguang Zhu , Da Zhang , Lijin Xu , Xiao Wang , Gang Ao
The development of efficient oxygen evolution reaction electrocatalysts capable of operating at industrial-level current densities (1 A cm−2) remains a major bottleneck for clean energy. This work tackles this challenge by constructing three-dimensional FeCo alloy aerogels via a straightforward co-reduction strategy. The unique porous architecture of the optimized Fe1Co2 catalyst enables unparalleled electron and mass transport, registering merely 333 mV even under a high current density of 1 A cm−2. Moreover, the Fe1Co2 product delivers an outstanding endurability of 120 h continuous voltage output under 1 A cm−2. Similarly noteworthy is its mass activity, which reaches 226.1 A g−1 at an overpotential of 300 mV. This value exceeds those of commercial benchmark catalysts IrO2 and RuO2 by factors of 14.1 and 12.1, respectively. Furthermore, an electrolyzer assembled with Fe1Co2 as the anode and 40%Pt/C as the cathode operates at a lower cell voltage than systems employing noble-metal anodes, confirming its viability for industrial water splitting.
开发能够在工业水平电流密度(1 A cm−2)下工作的高效析氧反应电催化剂仍然是清洁能源的主要瓶颈。这项工作通过直接的共还原策略构建三维FeCo合金气凝胶来解决这一挑战。优化后的Fe1Co2催化剂具有独特的多孔结构,能够实现无与伦比的电子和质量输运,即使在1 a cm−2的高电流密度下,其电流也仅为333 mV。此外,Fe1Co2产品在1a cm−2的电压下提供了120小时连续输出的出色耐久性。同样值得注意的是它的质量活度,在过电位为300 mV时达到226.1 A g−1。这一数值比商用基准催化剂IrO2和RuO2分别高出14.1和12.1倍。此外,与使用贵金属阳极的系统相比,以Fe1Co2为阳极,40%Pt/C为阴极的电解槽在更低的电池电压下运行,证实了其在工业水分解方面的可行性。
{"title":"Robust FeCo alloy aerogels for industrial-grade water oxidation Electrocatalysis","authors":"Lin Guan , Su Yan , Yangguang Zhu , Da Zhang , Lijin Xu , Xiao Wang , Gang Ao","doi":"10.1016/j.inoche.2025.116083","DOIUrl":"10.1016/j.inoche.2025.116083","url":null,"abstract":"<div><div>The development of efficient oxygen evolution reaction electrocatalysts capable of operating at industrial-level current densities (1 A cm<sup>−2</sup>) remains a major bottleneck for clean energy. This work tackles this challenge by constructing three-dimensional FeCo alloy aerogels via a straightforward co-reduction strategy. The unique porous architecture of the optimized Fe1Co2 catalyst enables unparalleled electron and mass transport, registering merely 333 mV even under a high current density of 1 A cm<sup>−2</sup>. Moreover, the Fe1Co2 product delivers an outstanding endurability of 120 h continuous voltage output under 1 A cm<sup>−2</sup>. Similarly noteworthy is its mass activity, which reaches 226.1 A g<sup>−1</sup> at an overpotential of 300 mV. This value exceeds those of commercial benchmark catalysts IrO<sub>2</sub> and RuO<sub>2</sub> by factors of 14.1 and 12.1, respectively. Furthermore, an electrolyzer assembled with Fe1Co2 as the anode and 40%Pt/C as the cathode operates at a lower cell voltage than systems employing noble-metal anodes, confirming its viability for industrial water splitting.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116083"},"PeriodicalIF":5.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-30DOI: 10.1016/j.inoche.2025.116090
Hadi Kargar , Maciej Kubicki , Fatemeh Abyar , Hamid Reza Zare-Mehrjardi , Khurram Shahzad Munawar , Muhammad Ashfaq , Mehdi Fallah-Mehrjardi
A brominated tetradentate Schiff base ligand (H2L) derived from 3,5-dibromosalicylaldehyde and 4,5-dimethyl-1,2-phenylenediamine was synthesized and characterized. The corresponding Cu(II), Ni(II), and Zn(II) complexes were obtained and structurally confirmed through FT-IR, NMR spectroscopy, and elemental analysis. Single-crystal X-ray diffraction of the free ligand showed the enol tautomer stabilized by intramolecular OH···N hydrogen bonding. UV–Visible spectroscopy and supporting theoretical studies confirmed coordination and metal-dependent electronic transitions. The electrochemical behavior of the compounds revealed irreversible redox features under physiological pH. Spectroscopic and computational results indicate effective chelation through the ONNO donor set and support geometries typical of salophen-type complexes. The combined findings provide insight into the coordination behavior and structure-property relationships of the ligand and its transition-metal complexes. Molecular docking studies with DNA and BSA suggest notable interaction potential, supporting the relevance of the complexes for future biological evaluation.
{"title":"Experimental and theoretical investigations of symmetrical brominated Schiff base complexes: Electrochemical properties and molecular docking studies","authors":"Hadi Kargar , Maciej Kubicki , Fatemeh Abyar , Hamid Reza Zare-Mehrjardi , Khurram Shahzad Munawar , Muhammad Ashfaq , Mehdi Fallah-Mehrjardi","doi":"10.1016/j.inoche.2025.116090","DOIUrl":"10.1016/j.inoche.2025.116090","url":null,"abstract":"<div><div>A brominated tetradentate Schiff base ligand (<strong>H</strong><sub><strong>2</strong></sub><strong>L</strong>) derived from 3,5-dibromosalicylaldehyde and 4,5-dimethyl-1,2-phenylenediamine was synthesized and characterized. The corresponding Cu(II), Ni(II), and Zn(II) complexes were obtained and structurally confirmed through FT-IR, NMR spectroscopy, and elemental analysis. Single-crystal X-ray diffraction of the free ligand showed the enol tautomer stabilized by intramolecular O<img>H···N hydrogen bonding. UV–Visible spectroscopy and supporting theoretical studies confirmed coordination and metal-dependent electronic transitions. The electrochemical behavior of the compounds revealed irreversible redox features under physiological pH. Spectroscopic and computational results indicate effective chelation through the ONNO donor set and support geometries typical of salophen-type complexes. The combined findings provide insight into the coordination behavior and structure-property relationships of the ligand and its transition-metal complexes. Molecular docking studies with DNA and BSA suggest notable interaction potential, supporting the relevance of the complexes for future biological evaluation.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116090"},"PeriodicalIF":5.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-30DOI: 10.1016/j.inoche.2025.116096
Hedyeh Rahimisadegh , Bita Ayati , Mohammad Hossein Sayadi
Photocatalysis, a light-driven degradation process based on the generation of electron–hole pairs under irradiation, has emerged as a sustainable and efficient method for removing persistent organic pollutants. However, the rapid recombination of photogenerated electron–hole pairs remains a major limitation to improving the photocatalytic efficiency of many materials, including covalent organic frameworks (COFs). In this study, a melamine-based COF (SNW-1) supported by polyaniline (PANI) and β-cyclodextrin (β-CD) (PANI/β-CD/SNW-1) was synthesized, exploiting the electrical conductivity of PANI, the pollutant-trapping capability of β-CD, and the recombination-suppression effects arising from their integration. The structural, morphological, thermal, and optical properties of the nanocomposite were comprehensively characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), Brunauer–Emmett–Teller (BET) surface area analysis, thermogravimetric analysis (TGA), photoluminescence (PL) spectroscopy, and UV–visible diffuse reflectance spectroscopy (DRS). The photocatalytic performance of the nanocomposite was evaluated using Acid Blue 25 (AB25) dye as a model pollutant. Under ultraviolet-C (UV-C) irradiation at pH 7 and 25 °C, with a catalyst dosage of 0.8 g/L, 96.66 % of a 150 mg/L AB25 solution was degraded within 30 min. Scavenger experiments confirmed that photogenerated holes (h+) play the dominant role in the photocatalytic mechanism, while chemical oxygen demand (COD) and total organic carbon (TOC) analyses verified effective mineralization of the pollutant. The photocatalyst maintained high activity over five consecutive cycles, with only a slight decrease in degradation efficiency to 81.16 %. These results demonstrate that the PANI/β-CD/SNW-1 nanocomposite is a stable, recyclable, and highly efficient photocatalyst with strong potential for practical wastewater treatment applications.
{"title":"Facile synthesis of sustainable and novel polymer-supported COF for high-efficiency dye photodegradation","authors":"Hedyeh Rahimisadegh , Bita Ayati , Mohammad Hossein Sayadi","doi":"10.1016/j.inoche.2025.116096","DOIUrl":"10.1016/j.inoche.2025.116096","url":null,"abstract":"<div><div>Photocatalysis, a light-driven degradation process based on the generation of electron–hole pairs under irradiation, has emerged as a sustainable and efficient method for removing persistent organic pollutants. However, the rapid recombination of photogenerated electron–hole pairs remains a major limitation to improving the photocatalytic efficiency of many materials, including covalent organic frameworks (COFs). In this study, a melamine-based COF (SNW-1) supported by polyaniline (PANI) and β-cyclodextrin (β-CD) (PANI/β-CD/SNW-1) was synthesized, exploiting the electrical conductivity of PANI, the pollutant-trapping capability of β-CD, and the recombination-suppression effects arising from their integration. The structural, morphological, thermal, and optical properties of the nanocomposite were comprehensively characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), Brunauer–Emmett–Teller (BET) surface area analysis, thermogravimetric analysis (TGA), photoluminescence (PL) spectroscopy, and UV–visible diffuse reflectance spectroscopy (DRS). The photocatalytic performance of the nanocomposite was evaluated using Acid Blue 25 (AB25) dye as a model pollutant. Under ultraviolet-C (UV-C) irradiation at pH 7 and 25 °C, with a catalyst dosage of 0.8 g/L, 96.66 % of a 150 mg/L AB25 solution was degraded within 30 min. Scavenger experiments confirmed that photogenerated holes (h<sup>+</sup>) play the dominant role in the photocatalytic mechanism, while chemical oxygen demand (COD) and total organic carbon (TOC) analyses verified effective mineralization of the pollutant. The photocatalyst maintained high activity over five consecutive cycles, with only a slight decrease in degradation efficiency to 81.16 %. These results demonstrate that the PANI/β-CD/SNW-1 nanocomposite is a stable, recyclable, and highly efficient photocatalyst with strong potential for practical wastewater treatment applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116096"},"PeriodicalIF":5.4,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Porous nanomaterials with high surface-to-volume ratios have attracted increasing attention for adsorption, catalysis, and environmental remediation. Metal–organic frameworks (MOFs), including their zeolitic imidazolate framework (ZIF) subclass, exhibit outstanding adsorption capacities and catalytic activity but often suffer from limited stability in aqueous environments, metal leaching, and high synthesis costs. In contrast, porous organic polymers (POPs) offer superior chemical robustness, scalability, and structural tunability, albeit with generally lower intrinsic activity. This review critically compares MOFs/ZIFs and POPs in terms of structural features, adsorption and catalytic performance, and environmental applications. Particular emphasis is placed on emerging MOF–POP hybrid materials, which integrate high activity with enhanced stability and durability. Finally, current challenges and future opportunities for developing sustainable porous materials for pollutant removal and green catalysis are discussed.
{"title":"Advances in POPs for environmental applications: a comparative analysis with MOFs and ZIFs","authors":"Alireza Pourvahabi Anbari , Shima Rahmdel Delcheh , Alireza Ranjbari , Kumar Shrestha , Tatwadhika Rangin Siddhartha , Francis Verpoort , Serge Zhuiykov","doi":"10.1016/j.inoche.2025.116116","DOIUrl":"10.1016/j.inoche.2025.116116","url":null,"abstract":"<div><div>Porous nanomaterials with high surface-to-volume ratios have attracted increasing attention for adsorption, catalysis, and environmental remediation. Metal–organic frameworks (MOFs), including their zeolitic imidazolate framework (ZIF) subclass, exhibit outstanding adsorption capacities and catalytic activity but often suffer from limited stability in aqueous environments, metal leaching, and high synthesis costs. In contrast, porous organic polymers (POPs) offer superior chemical robustness, scalability, and structural tunability, albeit with generally lower intrinsic activity. This review critically compares MOFs/ZIFs and POPs in terms of structural features, adsorption and catalytic performance, and environmental applications. Particular emphasis is placed on emerging MOF–POP hybrid materials, which integrate high activity with enhanced stability and durability. Finally, current challenges and future opportunities for developing sustainable porous materials for pollutant removal and green catalysis are discussed.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116116"},"PeriodicalIF":5.4,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A novel azo dye–based Schiff base receptors 1 and 2 were designed and synthesized via a sequence of steps and characterized by 1H NMR and single crystal X-ray crystallography. The cation recognition properties of receptor 2 were systematically investigated using fluorescence spectroscopy. Notably, receptor 2 displayed a distinct “turn-off” fluorescence response that was highly selective towards Fe3+ ions, with no significant interference from other tested cations. The binding studies revealed a detection limit as low as 2.5 μM, demonstrating the high sensitivity of receptor 2. Furthermore, the practical applicability of receptor 2 was validated by successfully determining Fe3+ levels in a pharmaceutical drug sample. These findings highlight the design synthesis of new receptor 2 as a promising, cost-effective fluorescent receptor for the selective detection of Fe3+ ions.
{"title":"Azo-based Schiff base as a turn-off fluorescent sensor for Fe3+ and its photophysical study","authors":"Anil Kuwar , Karunesh Keshav , SaiPrasad Santre , Vidya Kokane , Sambhaji P. Vartale , Madan Ambhore , Narinder Singh , Ratnamala Bendre","doi":"10.1016/j.inoche.2025.116117","DOIUrl":"10.1016/j.inoche.2025.116117","url":null,"abstract":"<div><div>A novel azo dye–based Schiff base receptors <strong>1</strong> and <strong>2</strong> were designed and synthesized via a sequence of steps and characterized by <sup>1</sup>H NMR and single crystal X-ray crystallography. The cation recognition properties of receptor <strong>2</strong> were systematically investigated using fluorescence spectroscopy. Notably, receptor <strong>2</strong> displayed a distinct “turn-off” fluorescence response that was highly selective towards Fe<sup>3+</sup> ions, with no significant interference from other tested cations. The binding studies revealed a detection limit as low as 2.5 μM, demonstrating the high sensitivity of receptor <strong>2</strong>. Furthermore, the practical applicability of receptor <strong>2</strong> was validated by successfully determining Fe<sup>3+</sup> levels in a pharmaceutical drug sample. These findings highlight the design synthesis of new receptor <strong>2</strong> as a promising, cost-effective fluorescent receptor for the selective detection of Fe<sup>3+</sup> ions.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"185 ","pages":"Article 116117"},"PeriodicalIF":5.4,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}