Journal of the Indian Chemical Society最新文献

{"title":"Visible light active transition metal chalcogenide/rGO nanocomposite photocatalyst for photoreduction of chromium (IV)","authors":"F.F. Alharbi ,&nbsp;Soumaya Gouadria ,&nbsp;Kadi Shebl Alshebl ,&nbsp;Salma Aman ,&nbsp;Hafiz Muhammad Tahir Farid","doi":"10.1016/j.jics.2025.102099","DOIUrl":"10.1016/j.jics.2025.102099","url":null,"abstract":"<div><div>A hydrothermal technique was utilized to produce NiO/rGO nanocomposite, with the objective of boosting photocatalytic reduction of hexavalent chromium (Cr (VI)) to trivalent chromium (Cr (III)). A diversity of analytical methods was used to evaluate optical, structural and textural attributes of substances. The findings indicated that the addition of rGO to NiO led to decline in band gap (B.G), with values of 3.38 and 2.91 eV for NiO and NiO/rGO, respectively. The NiO/rGO nanocomposite displayed a superior photoreduction efficiency of 96.2 %, compared to NiO (78.7 %), after a duration of 90 min. Increasing specific surface area (SSA) of nanomaterials enhances proportion of the substance interacting with Cr ions, hence improving photocatalytic activity. A substantial interfacial area and pore size facilitate the generation of photo-induced electrons (e⁻) along with hole (h⁺) pairs. The results demonstrate that NiO/rGO nanocomposite serves as an effective catalyst for Cr (VI) photoreduction. The nanocomposite material may serve as a promising catalyst in various upcoming studies related to photocatalysis.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102099"},"PeriodicalIF":3.4,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047070","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":"Encapsulation of MOF-808 with Keggin-type SiW12 polyoxometalate for highly efficient catalytic oxidative desulfurization","authors":"Muhammad Nurhakimie Roslan ,&nbsp;Zulkifli Merican Aljunid Merican ,&nbsp;Abdurrashid Haruna ,&nbsp;Ali Khatib Juma ,&nbsp;Abdullah Al-Yaari","doi":"10.1016/j.jics.2025.102097","DOIUrl":"10.1016/j.jics.2025.102097","url":null,"abstract":"<div><div>The incorporation of polyoxometalates (POMs) into metal-organic frameworks (MOFs) has emerged as a promising strategy for developing high-performance and recyclable catalysts for fuel oil desulfurization. In this study, zirconium-based MOF-808 encapsulating SiW₁₂ and its acid-modified derivative (SiW₁₂-A) were synthesized via a one-pot hydrothermal method. These materials were then evaluated for oxidative desulfurization (ODS) of model sulfur compounds, including benzothiophene (BT), dibenzothiophene (DBT), and 4,6-dimethyldibenzothiophene (4,6-DMDBT). The SiW₁₂-A@MOF-808(Zr) catalyst achieved a remarkable 97.10 % BT removal within just 30 min under mild conditions (50 °C) using H₂O₂ as the oxidant. Systematic evaluation of reaction parameters revealed the critical role of catalyst dosage, temperature, and oxidant-to-sulfur molar ratio on desulfurization efficiency. Encapsulation of SiW₁₂ within the mesoporous channels of MOF-808 improved active site accessibility and stability, while acid treatment (SiW₁₂-A) further promoted reactive oxygen species generation. The catalyst demonstrated excellent structural stability and recyclability over six consecutive cycles without significant loss of activity. This study presents a facile synthesis approach for POM@MOF composites and highlights their practical potential in clean fuel production through efficient ODS.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102097"},"PeriodicalIF":3.4,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027443","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":"Engineering ZnO photoanodes for enhanced DSSC performance via Bi-functionalization","authors":"B.B. Mahapatra ,&nbsp;M.K. Ghosh ,&nbsp;B.B. Panda ,&nbsp;N. Maity","doi":"10.1016/j.jics.2025.102092","DOIUrl":"10.1016/j.jics.2025.102092","url":null,"abstract":"<div><div>Co-sensitization of photoanodes represents a cutting-edge strategy for enhancing the efficiency of photovoltaic cells. This study explores the potential of ZnO thin films and investigates natural dyes extracted from Clitoria Ternatea leaves (D1) and flowers (D2) as individual and combined sensitizers for Natural dye-sensitized solar cells (NDSSCs). UV-VIS and FTIR spectroscopies confirm the presence of Chlorophyll-a in D1 and Anthocyanin in D2. Photoelectrochemical analysis reveal that, ZnO co-sensitized NDSSCs achieve superior performance, with a V_OC of 209 mV, I_SC of 2.3 mA, energy conversion efficiency (η) of 3.4 %, and a fill factor of 35.4 % which surpass those obtained from NDSSCs using single-dye sensitizers. ZnO thin films were further analyzed using UV-VIS spectroscopy, PXRD, FESEM, and EDAX. The absorption spectrum indicates a band gap (E_g) of 3.1 eV. PXRD data confirm hexagonal wurtzite phase (space group P63mc), FESEM reveals a distinctive flower-like morphology and EDAX analysis confirms a Zn-to-O ratio of 1:1.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102092"},"PeriodicalIF":3.4,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096778","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 dye removal using PANI-salt functionalized potato peels in a fixed-bed column: Optimization and modeling","authors":"Souheila Bouacherine ,&nbsp;Saliha Bouranene ,&nbsp;Selma Djaber ,&nbsp;Said Boukerche ,&nbsp;Dikra Bouras ,&nbsp;Abdalhak Gheid","doi":"10.1016/j.jics.2025.102091","DOIUrl":"10.1016/j.jics.2025.102091","url":null,"abstract":"<div><div>This study investigates a practical and low-cost approach for the removal of multiple dyes <strong>(Basic Fuchsin (BF), Methylene Blue (MB), Malachite Green (MG), Rhodamine B (RhB), Congo Red (CR), and Bordeaux B (BB))</strong> from aqueous solutions using dynamic fixed-bed adsorption. Native potato peels (PP), a biodegradable biosorbent, were chemically modified with polyaniline in its emeraldine salt form (PANI-ES) to enhance adsorption performance. The optimal operational parameters were as follows: dye concentration of 30 mg/L, bed height of 8 cm, particle size of 1 mm, flow rate of 7.5 mL/min, and pH 6.5. The adsorption capacity of unmodified PP correlated inversely with dye molecular weight, while PANI-ES grafting significantly extended breakthrough times <strong>from 356 to 400.18 min for BF, 219 to 387.68 min for MB, 96.2 to 373.3 min for MG, 141.62 to 359.15 min for RhB, and 68.1 to 363.52 min for CR, achieving maximum dye removal efficiencies of 99.67 % (BF), 99.88 % (MB), 98.01 % (MG), 94.41 % (RhB), and 92.08 % (CR), respectively.</strong> The developed biosorbent was characterized using <strong>Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), atomic force microscopy (AFM),</strong> Raman spectroscopy, and <strong>X-ray diffraction (XRD)</strong>. Breakthrough data were fitted using the Adams–Bohart, Thomas, Yoon–Nelson, and <strong>bed depth service time (BDST)</strong> models, <strong>highlighting the potential of PANI-functionalized agro-waste for efficient and sustainable wastewater treatment</strong>.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102091"},"PeriodicalIF":3.4,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005023","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":"Analytical challenges in the mavacamten impurity analysis: Exploring various cutting edge analytical methods to achieve mass balance for the accurate quantification of analytes","authors":"Vijaya Madhyanapu Golla ,&nbsp;Pushpa Pilli ,&nbsp;Hara Prasad Padhy ,&nbsp;Gananadhamu Samanthula ,&nbsp;Arun Kumar Gupta","doi":"10.1016/j.jics.2025.102082","DOIUrl":"10.1016/j.jics.2025.102082","url":null,"abstract":"<div><div>Mavacamten, a cardiac myosin inhibitor, is used to treat hypertrophic cardiomyopathy (HCM). Previous studies identified two drug related impurities (DRIs) of mavacamten under acidic hydrolytic stress conditions: 1-isopropylpyrimidine-2,4,6(1H,3H,5H)-trione (Imp 1) and 1-phenylethanamine (Imp 2). Imp 2 has a weakly absorbing chromophore, making high performance liquid chromatography (HPLC) quantification challenging due to baseline drifts at lower wavelengths effecting the mass balance parameter. Given the importance of impurity identification and determination for quality control and consumer safety, an alternative analytical method was required. The present study aimed to develop an analytical method for the concurrent determination of mavacamten and its DRIs. HPLC with evaporative light scattering detector (ELSD), LC – triple quadrupole mass spectrometry (LC-QqQ-MS) as well as nuclear magnetic resonance (NMR) spectroscopy techniques were explored. Out of three advanced analytical approaches, NMR proved to be advantageous in detecting both the impurities. A robust method using ¹H quantitative nuclear magnetic resonance (¹H qNMR) spectroscopy for the simultaneous determination of mavacamten and its two degradation products (DPs) was developed. Method validation followed ICH Q2(R2) guidelines. The NMR method showed excellent linearity (R² &gt; 0.99) over a concentration range of 0.1–5 mg/mL for all the compounds. Accuracy was validated with desired recovery rates across multiple concentrations. Precision tests yielded low %RSD values, and robustness studies indicated negligible effects from deliberate parameter changes. The validated method was applied to degradation kinetics studies of mavacamten under acidic conditions, accurately quantifying the drug and its DPs meeting mass balance criteria. This method provides a valuable alternative to HPLC, particularly for compounds lacking chromophores, and can be routinely used in stability studies and impurity profiling in the pharmaceutical industry.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102082"},"PeriodicalIF":3.4,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020087","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":"Enhancement of NdMnO3 Perovskite solar cells: A theoretical and numerical investigation","authors":"Abdelkader Bouhenna ,&nbsp;Karima Benyahia ,&nbsp;Abdelkader Aissat ,&nbsp;Hadjer Soufi ,&nbsp;Nabil Beloufa","doi":"10.1016/j.jics.2025.102087","DOIUrl":"10.1016/j.jics.2025.102087","url":null,"abstract":"<div><div>This research involved a theoretical examination of the structural and optoelectronic characteristics of NdMnO₃ Perovskite. The method of linearized augmented plane waves with full potential (FP-LAPW) was employed, utilizing DFT as implemented in the Wien2k software. Different methodologies were applied to manage the potential governing exchange and correlation effects, specifically the generalized gradient estimate increased by the Hubbard U (GGA + U) and the generalized gradient approximation as defined by Perdew-Burke-Ernzerhof (PBE-GGA). The structural characteristics, including the lattice constant, compressibility coefficient, and the function's derivative, align well with alternative theoretical findings. The characteristics of the electronic properties of NdMnO₃ were also reviewed. A ferromagnetic semi-metallic ground state in GGA + U was observed because of the significant hybridization between the Mn 3d and Nd 4f states. The compound's optical properties make it a promising choice for spintronics and optoelectronic applications. SCAPS-1D software was used to simulate and optimize a solar cell utilizing perovskite materials. The solar cell's physical attributes were detailed.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102087"},"PeriodicalIF":3.4,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047073","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":"Impact of Gd on the photocatalytic performance and hydrogen evaluation of the cubic phase of ZrO2","authors":"Abdelaziz M. Aboraia ,&nbsp;Amira Ben Gouider Trabelsi ,&nbsp;Fatemah H. Alkallas ,&nbsp;Moatasem Mostafa khalefa ,&nbsp;M.M. Abou Halaka ,&nbsp;Ibrahim M. Sharaf","doi":"10.1016/j.jics.2025.102081","DOIUrl":"10.1016/j.jics.2025.102081","url":null,"abstract":"<div><div>Zirconium dioxide (ZrO₂) in the cubic phase has been identified as a suitable material for use as a photocatalyst. However, its wide bandgap (∼5 eV) prevents it from efficiently absorbing visible light, which is a necessity in solar-induced photocatalytic processes. In this paper, the result of gadolinium (Gd) doping on the cubic ZrO₂ material in terms of structural, optical, and photocatalytic properties is examined. To make Gd-doped cubic ZrO₂, the sol-gel technique was employed, and the prepared samples were characterized by XRD, scanning electron microscopy (SEM), UV–visible spectroscopy, and EIS spectroscopy. A critical evaluation of the XRD results demonstrated that the cubic phase of ZrO₂ was stabilized by Gd incorporation, and the volume lattice increased from 134 to 135 Å³. Furthermore, UV–vis spectroscopy substantiated the decrease in the bandgap (from 5.0 eV for undoped ZrO₂ to 4.4 eV for the 2.5 wt% Gd-doped sample), thereby facilitating enhanced visible light absorption. The photocatalytic nature of the materials was confirmed through the degradation efficiency of methyl Orange (MO) dye under a visible light source. The enhanced photocatalytic activity of the optimized Gd-doped cubic ZrO₂ was observed as the degradation efficiency reached 79 % within 120 min, while that of the undoped ZrO₂ was 55 %. These improved performances are due to the combined reduction of the band gap, better charge separation, and higher surface reactivity stimulated by Gd doping. This fact was reflected in the results obtained and demonstrated the prospects of using Gd-doped cubic ZrO₂ as an effective photocatalyst for cleaning the environment and using solar energy. This work offers a good understanding of rare-earth doping for engineering ZrO₂'s properties and an effective approach for synthesizing superior photocatalysts.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 10","pages":"Article 102081"},"PeriodicalIF":3.4,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988108","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":"Residual peanut shells as zinc ions biosorbent: analysis of variables, removal mechanisms and disposal","authors":"Cecilia Mazzola ,&nbsp;Gisela Guadalupe Pelozo ,&nbsp;Nancy Esther Quaranta","doi":"10.1016/j.jics.2025.102090","DOIUrl":"10.1016/j.jics.2025.102090","url":null,"abstract":"<div><div>The degradation of surface water quality is a consequence of human activities, particularly industrial and agricultural processes. Biosorbents are widely recognised as cost-effective adsorbents and numerous studies have demonstrated their efficacy in removing heavy metals from aqueous solutions. This study aims to elucidate the optimal conditions and the primary mechanisms involved in the removal of Zn(II) ions using ground peanut shells as adsorbent. The adsorption experiments were carried out in batch mode, with different parameter variations. The biomass was subjected to a series of analytical techniques to determine its physicochemical and environmental characteristics. Different kinetic models of the process were studied and adsorption isotherms were used to analyse the biosorption process. The optimal conditions for zinc removal were obtained at a biomass concentration of 50 g/L, an initial pH of 6.1, and a contact time of 120 min. Using these parameters, approximately 84 % of the metal was removed. Furthermore, peanut shells contaminated with zinc do not show significant changes in their ecotoxicological properties when disposed of on land. The results show that peanut shells are a promising and cost-effective alternative biosorbent for the removal of zinc ions from aqueous media, where cation exchange mechanism is of great importance.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 10","pages":"Article 102090"},"PeriodicalIF":3.4,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932709","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":"Chemical kinetics of Rare Earth Element (REE) separation by precipitation method","authors":"Nofriady Aziz ,&nbsp;Agus Sumaryanto ,&nbsp;Imam Abdurrosyid ,&nbsp;Yogi Priasetyono ,&nbsp;Zeni Ulma ,&nbsp;Anas Fahmi Imron ,&nbsp;Dian Adi Prastowo ,&nbsp;Intan Nurhimawati ,&nbsp;Sri Wahyuningsih ,&nbsp;Siti Aidah ,&nbsp;Fajar M. Ramadhan ,&nbsp;P. Septian Hardi ,&nbsp;Evans Azka Fajrianshah ,&nbsp;Juan Carlos Sihotang ,&nbsp;Usman Sudjadi ,&nbsp;Agus Jamaludin ,&nbsp;Yusuf Gigih Wicaksono ,&nbsp;Hari Prijanto ,&nbsp;Ega Pratama Hadinoto ,&nbsp;Alfahrozin ,&nbsp;M. Faiz Nurhadi","doi":"10.1016/j.jics.2025.102062","DOIUrl":"10.1016/j.jics.2025.102062","url":null,"abstract":"<div><div>CHEMICAL KINETICS OF RARE EARTH ELEMENT (REE) SEPARATION BY PRECIPITATION METHOD. REE, are difficult to separate due to their similar properties yet are highly useful especially in advanced material industries. REE purification process uses precipitation is conducted to remove unwanted major elements in the material. This study aims to determine the optimum stirring speed and volume of NH₃(aq) addition, and analyze the order and reaction speed constants in the separation of REE using the precipitation method. The materials used were REOH from monazite sand processing with observed elements is limited to Dy, La, Nd, Ce, and Pr. The precipitation variations used include stirring speed (260–940 rpm) and the addition of NH₃(aq) volume (10–30 mL). The results showed that the optimum condition of stirring speed for La, Ce, and Pr elements was 500 rpm with efficiency values of 79.51 %, 99.76 %, and 98.89 %, while Dy and Nd elements were 640 rpm with efficiency values of 99.97 % and 99.15 %. The optimum NH₃(aq) volume addition condition is 20 mL for Dy, Nd, and Ce elements with efficiency values touching 99.99 % on all three elements, while La and Pr elements at a volume of 30 mL with efficiency values of 99.95 % and 99.97 %. The reaction takes place in the first order reaction in all variations. The effect of stirring speed on reaction constants showed that Dy and La had the highest constants at 640 rpm with values of −4.1x10⁻⁶ min⁻¹ and -7.26x10^{- 4}min⁻¹ respectively, Nd at 500 rpm with −7.24x10⁻⁵min⁻¹, and Ce and Pr at 260 rpm with 1.73x10⁻⁴ and −2.1x10⁻⁵. The effect of NH₃(aq) volume addition on the reaction constants showed that Dy had the highest constant at 20 mL with 1.27x10⁻⁶min⁻¹, La at 30 mL with −2.07x10⁻⁵min⁻¹, and Nd, Pr, and Ce at 25 mL with −1.59x10⁻⁶min⁻¹, 3.12x10⁻⁶min⁻¹, and 2.37x10⁻⁶min⁻¹, respectively.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102062"},"PeriodicalIF":3.4,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020090","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":"Smartphone-assisted colorimetric detection of arsenic using Co-functionalized silver nanoparticles in agarose gel matrix","authors":"M. Yashini ,&nbsp;Ayush Kumar Singh ,&nbsp;K.N. Sheeba ,&nbsp;Paramasivam Suresh Kumar ,&nbsp;Haritha CI","doi":"10.1016/j.jics.2025.102089","DOIUrl":"10.1016/j.jics.2025.102089","url":null,"abstract":"<div><div>A novel colorimetric sensor for the sensitive and rapid detection of arsenic ions (As³⁺) was developed using starch and citrate co-functionalized silver nanoparticles embedded into an agarose gel matrix (SC–AgNP/AG Gel). The SC-AgNP/AG gel was synthesized, and their characteristics analysis such as UV, SEM, XRD, and FTIR were extensively studied. Upon exposure to arsenic, the color response of the sensor changed from yellowish-brown to reddish, facilitating visual identification without the need for complex equipment. Smartphone-based colorimetric detection demonstrated a linear response in the concentration range of 0–50 ppm and a detection limit of 1.11 ppm. Validation of sensor was conducted using Atomic absorption spectroscopy and the results showed a significant correlation coefficient (R² = 0.97). The sensor exhibited an excellent selectivity to As³⁺, stability up to 30 days at 4 °C, sensitivity and reproducibility. SC-AgNP/AG gel was found to benefit in the practical applications such as environmental monitoring and food safety due to its simplicity, stability and ease of operation.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 11","pages":"Article 102089"},"PeriodicalIF":3.4,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027444","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}