Journal of the Indian Chemical Society最新文献

{"title":"Influence of amino acid-based deep eutectic solvents on the micellization behavior of Triton X-100: A comparative spectroscopic study","authors":"Benvikram Barman ,&nbsp;Manoj Kumar Banjare ,&nbsp;Bhupendra Singh Banjare ,&nbsp;Dolly Baghel","doi":"10.1016/j.jics.2026.102463","DOIUrl":"10.1016/j.jics.2026.102463","url":null,"abstract":"<div><div>Deep eutectic solvents have found themselves as a flexible green media that has broad hydrogen-bond networks and adjustable polarity that can substantially alter interfacial and self-assembly events. This work contains a systematic study of the micellization principle of the non-ionic surfactant Triton X-100 in aqueous media under the influence of three novel amino acid-based deep eutectic solvents (DESs) consisting of choline chloride as a hydrogen-bond acceptor and various amino acids as hydrogen-bond donors. The multi-technique experimental method of surface tension measurements, fluorescence spectroscopy, UV-visible spectroscopy, viscosity, and Fourier-transform infrared (FTIR) spectroscopy was also used to investigate the effect of DES composition and concentration (5 and 10 wt%) on critical micelle concentration (CMC), interfacial parameters, micellar microenvironment, and molecular interactions. The surface tension measurements indicate progressive reduction of the CMC of Triton X-100 with the addition of DESs, which evidences the increased self-assembly of the surfactant. The intensity of CMC decrease is highly dependent on the type of amino acid, as this indicates variations in hydrogen-bonding aptitude, polarity, and solvation influences. Fluorescence analysis with pyrene as a probe indicates an unanimously varied ratio of I1/I3, which supports the alteration of micellar micropolarity and supports the existence of the more hydrophobic microenvironment in the presence of DES. Pre-micellar and micellar interactions are further supported by UV-visible spectroscopy, which gives concentration-dependent spectral changes, and viscosity measurements, which give information on structural and rheological changes induced by the incorporation of DES. The FTIR spectral analysis indicates that characteristic vibrational bands can be distinguishably shifted, indicating the presence of a particular interaction of hydrogen bonds between Triton X-100, water, and DES components, which is the basis of changes in the behavior of micellization.</div><div>The paper provides a comparative, mechanistic, and thermodynamic reason for how the amino acid structure influences hydrogen bonding, interfacial adsorption, micellar microenvironment, and spontaneity of aggregation. The results demonstrate their irrevocable correlations of structure and properties and demonstrate how amino acid-based DESs can be selected rationally to optimize the micellar systems to facilitate their further application in sustainable colloidal and formulation chemistry.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 3","pages":"Article 102463"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of synthesis parameters on the properties of hydroxyapatite from Cerithidea obtusa shell waste","authors":"Teh Ubaidah Noh ,&nbsp;Rozainita Rosley","doi":"10.1016/j.jics.2026.102473","DOIUrl":"10.1016/j.jics.2026.102473","url":null,"abstract":"<div><div>Hydroxyapatite (HAp) was synthesized from <em>Cerithidea obtusa</em> (<em>C. obtusa</em>) shell waste to address the growing need for low–cost biomaterials for producing calcium phosphate materials. This study aimed to investigate the effects of calcination temperature, reaction time, and CaO precursor mass on the physicochemical and structural properties of HAp produced using the wet slurry precipitation method. Calcium oxide (CaO) was extracted from the calcined shell waste and reacted with potassium dihydrogen phosphate (KH₂PO₄) to form HAp. The synthesized HAp from <em>C. obtusa</em> shell waste was characterized using Scanning Electron Microscopy (SEM), energy–dispersive X–ray spectroscopy (EDX), Fourier–transform infrared spectroscopy (FTIR), and X–ray diffraction (XRD) analyses. SEM analysis revealed distinct morphological features under different synthesis conditions. EDX confirmed that the Ca/P ratio approached the stoichiometric value of 1.67 under the condition of 1100 °C calcination for 4 h with a 20 g CaO precursor, indicating near–stoichiometric elemental composition. FTIR spectra confirmed phosphate (PO₄³⁻) and hydroxyl (OH⁻) groups characteristic of HAp under the same condition, verifying its chemical structure. XRD patterns demonstrated phase composition and crystallinity from calcite to HAp, with crystallite sizes ranging from 20.1 to 54.6 nm and crystallinity indices (CI) between 63 ± 4 % and 98 ± 2 %. At 1100 °C, HAp was detected with a crystallite size of 20.9 ± 1.5 nm and high crystallinity (CI 98 ± 2 %), while at 4 h enabled partial transformation to HAp with crystallite sizes of 20.1 ± 1.6 nm (CI 63 ± 4 %). Using 20 g of CaO precursor, XRD analysis showed calcite with a crystallite size of 32.7 ± 1.9 nm (CI 85 ± 3 %) and HAp with 28.9 ± 1.8 nm (CI 72 ± 3 %). Therefore, <em>C. obtusa</em> shell waste was effectively transformed into highly crystalline nanocrystalline HAp. Further evaluation of biocompatibility and mechanical strength is recommended to confirm its suitability as an eco–friendly biomaterial.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 3","pages":"Article 102473"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and development of polyaniline-manganese dioxide composite thick films for acute detection of ethanol gas","authors":"Manasi S. Gambhire ,&nbsp;Shivaji R. Labhade ,&nbsp;Sharad S. Gaikwad ,&nbsp;Samin A. Shaikh","doi":"10.1016/j.jics.2026.102450","DOIUrl":"10.1016/j.jics.2026.102450","url":null,"abstract":"<div><div>Polyaniline-Manganese Dioxide (PANI-MnO₂) composite thick films with varying polyaniline concentrations (1-11 wt %) were successfully developed by the screen-printing technique for gas sensing of ethanol. The structural, morphological and optical properties of the prepared films were systematically investigated using XRD, FESEM, EDX, FTIR, and UV-Vis spectroscopy. XRD analysis confirmed the coexistence of tetragonal MnO₂ (JCPDS No. 24-0735) and orthorhombic PANI (JCPDS No. 53-1891) while the crystallite size was found to vary between 22 and 23 nm reaching a minimum of 22.12 nm for the 3 wt % PANI–MnO₂. FESEM images revealed a highly porous surface morphology with uniformly distributed nanoparticles and the specific surface area was highest (9.11 m²/g) for the 3 wt % sample. FTIR spectra verified the presence of Mn–O vibrations and characteristic PANI bands, confirming strong chemical interaction between PANI and MnO₂. Optical studies showed a decrease in band gap energy from 3.07 eV (1 wt %) to 2.68 eV (3 wt %), improving charge carrier mobility and interfacial conductivity. 3 wt % PANI-MnO₂ film showing the maximum response of 91.68% at 60 °C for 400 ppm ethanol, and recovery times of 11 s and 53 s, respectively. The developed PANI–MnO₂ thick films sensor exhibited excellent selectivity, reproducibility and long-term stability indicate for low-temperature ethanol gas sensor.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 3","pages":"Article 102450"},"PeriodicalIF":3.4,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fruit waste to fuel: A case study on hydrogen generation using pomegranate peels","authors":"Shivali Singh Gaharwar ,&nbsp;Ranjita S. Das ,&nbsp;Anupama Kumar ,&nbsp;Charu Juneja ,&nbsp;Sukdeb Pal","doi":"10.1016/j.jics.2026.102468","DOIUrl":"10.1016/j.jics.2026.102468","url":null,"abstract":"<div><div>Rapid global population growth has intensified the demand for increased fruit production as well as renewable energy using environmentally sustainable approaches for better life quality. Pomegranate, a widely consumed fruit, generates huge quantities of peel waste that pose significant solid waste management challenges. This study presents a sustainable approach for valorizing pomegranate peels (PP) into efficient biocatalysts for hydrogen generation via alcoholysis of sodium borohydride (NaBH₄). Optimization of calcination temperature and acid mixture ratios yielded high-performing biocatalysts, P3-350 and P4-450, which were further characterized using FTIR, Raman spectroscopy, FESEM, ICP-OES, XPS, XRD, CHNS, Boehm titration and BET surface area analysis (P3-350: 85.22 and P4-450: 38.02 m² g⁻¹). P3-350 achieved hydrogen generation rates (HGR) of 99,000 mL min⁻¹ gcat⁻¹ (5940 L h⁻¹ gcat⁻¹) during methanolysis, while P4-450 depicted HGR of 112,667/137,142.9 mL min⁻¹ gcat⁻¹ (6760/8228.57 L h⁻¹ gcat⁻¹) during methanolysis/ethylene glycolysis of NaBH₄ under optimized reaction conditions. This work highlights the dual benefit of pomegranate peel-derived biocatalysts, by providing an ecofriendly pathway for on-demand hydrogen generation while effectively addressing fruit waste management. The proposed process contributes to sustainable energy production, circular bioeconomy, and resource recovery from agricultural residues, thereby supporting a cleaner and more energy-resilient future.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 3","pages":"Article 102468"},"PeriodicalIF":3.4,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and fabrication of a self-powered voltage booster for enabling real-time applications of water lettuce (Pistia stratiotes) assisted sediment microbial fuel cell","authors":"Arup Dutta ,&nbsp;Lepakshi Barbora ,&nbsp;Pranab Goswami","doi":"10.1016/j.jics.2026.102472","DOIUrl":"10.1016/j.jics.2026.102472","url":null,"abstract":"<div><div>The real-world application of microbial fuel cells is feasible only when they deliver sufficient power to satisfy the need for the intended applications. Herein, an approach to enhance the energy output of a Water lettuce-assisted sediment microbial fuel cell is presented through the integration of a power management system comprising a charge pump, capacitor, and supercapacitor. The microbial fuel cells were constructed using Iso-molded graphite plates as electrodes in bioreactors with a working volume of 500 mL. Four stacks were assembled, each consisting of two individual cell units connected in series. When each of the stacks was connected to a charge pump, the voltage increased to double with an efficiency of 97.15 ± 0.01%. The output of the four charge pumps was cascaded for charging a pair of 3300 μF capacitors, which were then discharged in series through a 0.5 F supercapacitor. With the input from the capacitors, the time for charging the supercapacitor was 35 h that generated 3.5 V, which is ∼61.5% of its maximum voltage limit (5.69 V). At the maximum operating point for the stacks (10 kΩ load), the power output of the system is ∼0.92 mW, which is 7.13 times the total power delivered by the stacks. The maximum power conversion efficiency of the system was 81.76%. This study demonstrated powering a 1 W LED using the voltage booster. The power efficiency for the booster can be further increased by allowing additional charging time for the supercapacitor and increasing the supercapacitor's value. These results would be informative for designing a self-powered PMS topology to boost power in microbial fuel cell stacks for their practical applications.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 3","pages":"Article 102472"},"PeriodicalIF":3.4,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green approach based on Micellar -Modified Kalonji seeds waste for removal of hexavalent chromium ions and methyl orange dye from aqua","authors":"Yonis Ahmed Ismael ,&nbsp;Dhufr Abdulghani Omer ,&nbsp;Saja Saad Ibrahim ,&nbsp;Doha Neithal Saad","doi":"10.1016/j.jics.2026.102470","DOIUrl":"10.1016/j.jics.2026.102470","url":null,"abstract":"<div><div>This study focuses on utilizing de-oiled Kalonji seed waste (KS) as a green approach, transforming it into sustainability adsorbent for removal methyl orange dye (MO) and Cr (VI)ions from aqua The adsorbent performance was enhanced by modification of surface using Cetyltrimethylammonium bromide (CTAB) micelles were used to produce M-MKS adsorbent, the adsorbent was characterized by (FT-IR, SEM-EDX, XRD, Zeta potential, and BET analysis). Additionally, the ideal parameters pH solution, initial concentration, adsorbent dosage, contact time, and temperature were examined. BET analysis found that M-MKS has an appropriate surface area of around (27m²/g), with an average pore diameter of (11.17) nm. The removal efficiencies for MO dye and Cr (VI) ions were determined to be (95.90 and 99.04%), respectively, at starting concentrations of (200 and 70 mg/L). The Temkin model was shown to be more appropriate for the experimental adsorption data than the other isotherm models. while, the P–SO model was better matched than the other kinetic models. Thermodynamic analysis demonstrated spontaneous and exothermic adsorption events. According to regeneration demonstrated that M-MKS adsorbent could sustain around (73.70 and 84.93%) for dye and Cr (VI) at the fifth consecutive cycle of regeneration. The proposed mechanism for dye and Cr (VI) removal involves electrostatic reactions, hydrogen bonding, ion exchange, and π-π reactions between the cationic surface of the adsorbent and anionic molecules of the pollutants. Furthermore, M-MKS was applied to actual water samples, where the adsorbent its efficiency in water samples, confirming its applicability on an industrial scale. Finally, M-MKS adsorbent represents a sustainable, low-cost, highly efficient green solution for treating polluted water, and is a promising option for large-scale environmental applications.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 3","pages":"Article 102470"},"PeriodicalIF":3.4,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable production of lignin-based surfactants from tropical wood waste via delignification–Sulfonation for enhanced oil recovery","authors":"Ahmad Shobib ,&nbsp;Aminuddin ,&nbsp;Nur Rokhati ,&nbsp;Bambang Pramudono","doi":"10.1016/j.jics.2026.102449","DOIUrl":"10.1016/j.jics.2026.102449","url":null,"abstract":"<div><div>This study investigates the isolation and modification of lignin from tropical hardwoods, i.e: teak (<em>Tectona grandis</em>), mahogany (<em>Swietenia macrophylla</em>), and sengon (<em>Albizia chinensis</em>), for the production of surfactant-lignin sulfonate (SLS) used in enhanced oil recovery (EOR). Lignin was extracted using hydrogen peroxide and sodium hydroxide, followed by solvolysis. The biomass composition was analyzed, revealing significant variation in hemicellulose content, with sengon showing the highest content (41 %-wt) compared to teak and mahogany. Sulfonation was carried out at varying temperatures, showing that higher temperatures generally increased SLS yield and surfactant performance. FTIR analysis confirmed structural differences between the lignins from different biomass sources. The produced SLS demonstrated favorable properties for EOR applications, including good compatibility with synthetic brine, stability at elevated temperatures, and effective phase behavior. These findings suggest that biomass-derived SLS could be a sustainable and cost-effective alternative to conventional surfactants for EOR processes.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102449"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of recycled fine aggregate admixture on the performance of seawater sea sand recycled concrete","authors":"Yanmei Yu ,&nbsp;Jun Shen ,&nbsp;Juhua Luo","doi":"10.1016/j.jics.2026.102428","DOIUrl":"10.1016/j.jics.2026.102428","url":null,"abstract":"<div><div>Seawater sea sand recycled concrete (SSRAC) has a wide range of application prospects in relieving resource constraints and urban construction waste disposal. Theoretically, after being crushed, SSRAC can still be used as fine aggregate. However, the strength of recycled fine aggregates (RA) and the corrosion problem of chloride ions limited the application of SSRAC. Here, we designed the orthogonal experiment to evaluate the effects of recycled fine aggregate (RFA) admixture, water-glass admixture and sand-cement ratio on the compressive strength, and chloride curing ability of SSRAC. The hydration products and microscopic morphology of SSRAC were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). The results showed that the RFA was the main factor to affect the compressive strength, and chloride curing ability of SSRAC. Especially, the amount of water glass admixture had an obvious effect on the compressive strength and chloride curing ability of SSRAC. With the increase of RFA admixture, the compressive strength of SSRAC firstly increased and then decreased, continues to decrease with the increase of water glass content. The chloride curing ability decreased and then increased with the increase of RFA content, and increased with the increase of water glass content. Therefore, when the RFA admixture was 60 % and the water glass admixture was 1.5 %, the compressive strength and chloride curing capacity of SSRAC were 31.2 MPa and 1.05, respectively, at which time the water-soluble chloride ion content was 0.218 %. The results and new findings can provide a basis for the preparation of SSRAC.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102428"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sensitive and rapid detection of melamine in coffee powder by beta-cyclodextrin copolymer coated with silver nanoparticles by paper based Analytical-SERS technique","authors":"Deepak Kumar,&nbsp;Nazia Tarannum,&nbsp;Aditi Gautam,&nbsp;Tanu Chauhan","doi":"10.1016/j.jics.2026.102451","DOIUrl":"10.1016/j.jics.2026.102451","url":null,"abstract":"<div><div>Paper-based analytical Surface-Enhanced Raman Scattering (SERS) spectroscopy enables rapid and highly sensitive detection of melamine in coffee powder. This performance is attributed to the selective interaction between melamine and a β-cyclodextrin copolymer functionalized with silver nanoparticles (AgNPs). Melamine is a nitrogen-rich compound that has been fraudulently introduced into dairy products to artificially inflate measured protein levels for economic gain. Nevertheless, high levels of melamine consumption pose significant health risks. SERS is widely recognized as a powerful tool for the identification of trace contaminants such as melamine. In the present work, a flexible paper-supported nanoparticle hybrid surface plasmon resonance substrate was prepared by depositing β-cyclodextrin–modified AgNPs onto filter paper. The method was evaluated using an external calibration procedure to determine its linearity, sensitivity, repeatability, and recovery. The results demonstrated satisfactory linearity (R² = 0.85) for melamine detection in coffee powder across a concentration range of 1000 ppm–0.0001 ppm, with a detection limit of 0.001 ppm.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102451"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient ammonia sequestration by Al-based MOF composites: Synergistic regulation of supports and loading strategies and investigation of the adsorption mechanism","authors":"Lei Zhang ,&nbsp;Liu Zhang ,&nbsp;Ya Chen ,&nbsp;Lei Zhang ,&nbsp;Chenxi Tan ,&nbsp;Ruikang Song ,&nbsp;Shizhe Gao","doi":"10.1016/j.jics.2026.102422","DOIUrl":"10.1016/j.jics.2026.102422","url":null,"abstract":"<div><div>This study employed 3,5-pyrazoledicarboxylic acid (PZDC) as a ligand to synthesize aluminum-based metal-organic frameworks (Al-PZDC) via an in-situ hydrothermal method. Al-PZDC composites were constructed using two loading methods—preloading and postloading—with 13X molecular sieves, activated carbon, and γ-Al₂O₃ as carriers, respectively. The physicochemical properties of the materials were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The NH₃ adsorption mechanism was investigated by combining adsorption kinetic models, pre- and post-adsorption spectral analysis, and in situ differential Raman infrared spectroscopy (Insitu DRIFTS). The results indicate that Al-PZDC was successfully loaded onto each carrier; Composites prepared by the pre-loading method exhibited superior adsorption performance compared to those from the post-loading method. The composite (13X molecular sieve @Al-PZDC-0.4) prepared using 13X molecular sieve as the carrier and the pre-loading method demonstrated the most outstanding NH₃ adsorption performance, achieving a saturation adsorption capacity of 100.57 mg g⁻¹ at 25 °C and 1 % NH₃ concentration. Kinetics analysis indicates that NH₃ adsorption is primarily chemical adsorption supplemented by physical adsorption. The adsorption mechanism involves physical adsorption, pore filling, hydrogen bonding interactions, and the synergistic effects of Lewis acid (<span>l</span>-acid) and Brønsted acid (B-acid) sites.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"103 2","pages":"Article 102422"},"PeriodicalIF":3.4,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}