Inorganic Chemistry Communications最新文献

{"title":"Nanoparticles, thin films and temperature-dependent oxidation characteristics of metallic bismuth synthesized via solventless pyrolysis of bismuth(III) dithiolates: Polymorphism and photocatalytic dye degradation of bismuth sesquioxide","authors":"Xianglong Liu ,&nbsp;Tingting Wang ,&nbsp;Longhua Li ,&nbsp;Junli Wang","doi":"10.1016/j.inoche.2026.116158","DOIUrl":"10.1016/j.inoche.2026.116158","url":null,"abstract":"<div><div>In this study, we report the preparation of Bi nanoparticles (NPs) and thin films via the solventless pyrolysis of bismuth(III) dithiolates (Bi₂(S₂C_nH_2n)₃, <em>n</em> = 3, 4) at 160–220 °C, whose thermolysis features the absence of the precursor melting and finishes before the product (Bi metal) melting, and then we demonstrate their oxidation conversion to Bi₂O₃ NPs and thin films at different temperatures. The polymorphs and phase transitions of so-formed Bi₂O₃ are highly dependent on the oxidation temperature. Pure-phase β-Bi₂O₃ (tetragonal), formed by thermally oxidizing Bi NPs at 400 °C, will transform to α-Bi₂O₃ (monoclinic) by the traditionally known phase transition or β’-Bi₂O₃ by the <strong><em>c</em></strong>-oriented lattice thermal expansion as the oxidation temperature increases to 500 and 600 °C, which normally leads to an incomplete β → α transition and a mixed product of β’(β)/α phases. Compared to the β phase, the lattice-expanded variant β’-Bi₂O₃ is found to be stable at both high temperature (500–600 °C) and room temperature (RT) and to display a wide bandgap (∼3.0 eV), a narrow visible-light absorption range and thus relatively poor activity in RhB photodegradation. Moreover, Bi NPs are also found to be oxidized to bismuth oxycarbonate (Bi₂O₂CO₃) at RT in the presence of H₂O and CO₂. This work opens a novel avenue to synthesize Bi and Bi₂O₃ NPs and thin films and presents new findings and insights regarding the phase regulation, polymorphism and photocatalytic performance of Bi₂O₃.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116158"},"PeriodicalIF":5.4,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975261","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}

{"title":"Multifunctional Ni(II) coordination architecture: A unified approach to catalysis, energy storage, and fluorescent sensing","authors":"Kaviya Rajendran ,&nbsp;Sangeedha Appusamy ,&nbsp;Raymond J. Butcher ,&nbsp;A. Pushpaveni ,&nbsp;Sivakumar Sengodan ,&nbsp;Ponnusamy Kanchana","doi":"10.1016/j.inoche.2026.116154","DOIUrl":"10.1016/j.inoche.2026.116154","url":null,"abstract":"<div><div>A novel nickel(II) coordination complex, aqua-(methyl hydrazinecarboxylate)-[pyridine-2,6-dicarboxylato]‑nickel [Ni(C₇H₃NO₄)(C₂H₆N₂O₂)(H₂O)], designated as <strong>NiPDMCZ</strong>, was successfully synthesized. The structural and physicochemical features of <strong>NiPDMCZ</strong> were comprehensively characterized using UV–Visible (UV-Vis) spectroscopy, FTIR spectroscopy, mass spectrometry, TG–DTA analysis, single-crystal X-ray diffraction (S-XRD), powder X-ray diffraction (P-XRD), and Hirshfeld surface analysis. The <strong>NiPDMCZ</strong> complex belongs to the monoclinic crystal system with a <em>Cc</em> space group containing eight formula units (Z = 8), where the Ni(II) center manifests a distinct distorted octahedral geometry. The <strong>NiPDMCZ</strong> complex possesses a narrow HOMO–LUMO gap of 1.0888 eV, reflecting its pronounced electronic reactivity. The electrochemical behavior of <strong>NiPDMCZ</strong> was examined by employing it as an electrode material in an aqueous 3 M KOH electrolyte for supercapacitor applications. The electrode exhibited an impressive specific capacitance (409 F g⁻¹) at 1 A g⁻¹ of applied current density, accompanied by high energy (136.2 Wh kg⁻¹) and power (27.8 kW kg⁻¹) densities with 92% capacitance retention in 1000 cycles. Furthermore, the catalytic activity of the complex was examined for the reduction of picric acid in aqueous medium using NaBH₄ as the reducing agent, achieving complete reduction within 24 min under ambient conditions. In addition, <strong>NiPDMCZ</strong> functioned as a highly sensitive fluorescent “turn-off” chemosensor for the selective detection of L-cysteine (L-Cys), exhibiting a Stern–Volmer quenching constant of 4.3 × 10⁴ M⁻¹, indicative of a strong quenching interaction. Overall, the <strong>NiPDMCZ</strong> complex demonstrates significant promise in energy storage, catalytic reduction of environmental pollutants, and fluorescent sensing of biomolecules, positioning it as a valuable candidate for advanced materials and sustainable technological applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116154"},"PeriodicalIF":5.4,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975026","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}

{"title":"Herbal carbon dots for wound healing: Bridging traditional phytomedicine with advanced Nanotherapeutics","authors":"Muskan Leharwani ,&nbsp;Harshita Singhai ,&nbsp;Umme Hani ,&nbsp;Vanitha Innocent Rani ,&nbsp;Garima Gupta ,&nbsp;Khang Wen Goh ,&nbsp;Umesh Kumar Patil ,&nbsp;Prashant Kesharwani","doi":"10.1016/j.inoche.2026.116162","DOIUrl":"10.1016/j.inoche.2026.116162","url":null,"abstract":"<div><div>Chronic wounds represent a growing global health crisis, driven by complex pathophysiological mechanisms including persistent inflammation, microbial colonization, impaired angiogenesis, and oxidative tissue damage. The conventional treatment often falls short in addressing these multifactorial challenges particularly due to increasing cases antimicrobial resistance and limited capacity for targeted and adaptive interventions. Herbal carbon dots have emerged as a next-generation nanotherapeutic platform representing an elegant fusion of phytomedicine wisdom and responsiveness of modern nanotechnology. The herbal carbon nanodots are generally synthesized through eco-friendly green chemistry from diverse medicinal plant biomass. These ultrasmall, fluorescent nanoparticles retain and transform bioactive motifs properties their botanical precursors as reflected in their antimicrobial, anti-inflammatory, antioxidant, and pro-angiogenic effects, while gaining enhanced cellular uptake, aqueous solubility, and controlled therapeutic release from the nano architecture. This comprehensive review illuminates the mechanistic landscape of herbal carbon dot interventions, spanning intelligent antimicrobial strategies that circumvent resistance pathways, sophisticated stimuli-responsive designs responsive to wound microenvironments, strategic heteroatom doping for enhanced enzymatic mimicry, targeted modulation of inflammatory cascades and angiogenic pathways, and specialized formulations addressing diabetic complications, UV-damaged tissue, chemical burns, and bone-associated wounds. This review also highlights the emerging computational strategies, including machine learning and Bayesian neural networks approaches for synthesis optimization and property prediction of Carbon Nanodots.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116162"},"PeriodicalIF":5.4,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975327","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}

{"title":"Synergizing structure and function: Cd(II)-pyrazine dicarboxylate MOF for enhanced dye adsorption","authors":"Ruheen Khan ,&nbsp;Abdulrahman G. Alhamzani ,&nbsp;Mohd Zeeshan ,&nbsp;Mohammad Yasir Khan ,&nbsp;M. Shahid ,&nbsp;Ehab A. Abdelrahman","doi":"10.1016/j.inoche.2025.116111","DOIUrl":"10.1016/j.inoche.2025.116111","url":null,"abstract":"<div><div>Persistent organic dyes continue to pose serious threats to both the environment and public health, yet most conventional adsorbents fail to deliver adequate selectivity in multicomponent dye systems. In this study, we report the synthesis of a new cadmium-based metal–organic framework, [Cd(pzdc)(H₂O)]_n <strong>(RK-1)</strong>, synthesized from cadmium nitrate and 2,3-pyrazine dicarboxylic acid using solvothermal route. The structure, morphology, and thermal stability of <strong>RK-1</strong> were comprehensively characterized by Powder X-ray Diffraction (PXRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and Thermogravimetric Analysis (TGA). The adsorption performance of <strong>RK-1</strong> was systematically evaluated toward a cationic dye (methylene blue, MB) and an anionic dye (methyl orange, MO). Furthermore, <strong>RK-1</strong> displayed pronounced selectivity and superior affinity toward the cationic MB dye, achieving an experimentally observed adsorption capacity 32.51 mg g⁻¹, compared to 30.40 mg g⁻¹ for MO at an initial concentration of 10 ppm, with an outstanding removal efficiency of 97.5% at equilibrium. Kinetic and isotherm studies revealed that the adsorption followed a pseudo-second-order model, indicating chemisorptive interaction between the adsorbent and dye molecules. Furthermore, <strong>RK-1</strong> retained its crystallinity and adsorption efficiency over multiple regeneration cycles, emphasizing its structural robustness and reusability. <strong>RK-1</strong> demonstrates remarkable efficiency and charge selectivity, signifying a sustainable breakthrough for targeted removal of dyes from industrial effluents.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116111"},"PeriodicalIF":5.4,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975152","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}

{"title":"Synthesis of magnetic zeolite from volcanic rock “Red Tezontle” for removal of Nickel(II) and Copper(II) ions from aqueous solution","authors":"A. Hernández-Palomares ,&nbsp;F. Mares-Briones ,&nbsp;Y. Medrano ,&nbsp;F. Espejel-Ayala ,&nbsp;F.J. Bacame-Valenzuela ,&nbsp;H.N. Böhnel ,&nbsp;R. Esparza","doi":"10.1016/j.inoche.2026.116160","DOIUrl":"10.1016/j.inoche.2026.116160","url":null,"abstract":"<div><div>The use of volcanic rock “Red Tezontle” like natural minerals as precursors for magnetic zeolite synthesis has been investigated for the removal of Nickel(II) (Ni (II)) and Copper (II) (Cu (II)) ions from aqueous solutions. Magnetic zeolites were synthesized from readily available volcanic stone, utilizing a process involving alkaline fusion and hydrothermal treatment. The resulting materials were characterized using a combination of X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM-EDS) to determine their structural and compositional properties. The characterization results confirmed the successful formation of zeolites, with XRD analysis identifying the presence of zeolite NaA and sodalite phases. The synthesized zeolites demonstrated a notable capacity for Ni (II) and Cu (II) removal from aqueous solutions, highlighting their potential as effective and economical adsorbents for heavy metal remediation. Adsorption experiments were conducted to evaluate the Ni (II) and Cu (II) removal efficiency under various conditions. The influence of temperature, initial Ni (II) and Cu (II) concentration, contact time, and adsorbent dose on the adsorption process were studied. The maximum adsorption capacities achieved for Ni (II) and Cu (II) were 117 mg/g and 141 mg/g, respectively, indicating the promising applicability of these zeolites derived from natural minerals for wastewater treatment. This study demonstrates a sustainable approach to synthesizing zeolites for environmental applications, utilizing abundant natural resources and providing an alternative to conventional, often costly, heavy metal removal techniques. The findings contribute to the growing body of research focused on developing cost-effective and environmentally friendly solutions for water purification.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116160"},"PeriodicalIF":5.4,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975701","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}

{"title":"Hemocompatibility and erythrocytic Re-calcification nature of Eu3+ doped Gd oxide and orthovanadate nanoparticles","authors":"Aftab Ansari ,&nbsp;Rafika Yasmin ,&nbsp;Muzamil Rather ,&nbsp;Robin Doley ,&nbsp;Dambarudhar Mohanta","doi":"10.1016/j.inoche.2026.116143","DOIUrl":"10.1016/j.inoche.2026.116143","url":null,"abstract":"<div><div>Prospective utilization of bare Eu³⁺ doped rare-earth (RE) based nanosystem in clinical field requires an in depth, broad, detailed and comprehensive evaluation of their biocompatibility. Considering extensive intravenous administration of RE based nanosystem, approximation of erythrocyte deformability upon nanosystem-erythrocyte interaction has proved to be essential for optimization of theranostic approaches. In this article, we present a descriptive account of consequence of erythrocytic interaction of Eu³⁺ doped Gd based oxide and vanadate nanosystem featuring their hemocompatibility aspects. The vanadate-based nanoparticles (NPs) displayed extremely hemocompatible nature even at concentration as high as ∼100 μg/ml. The oxide-based NPs were found to be bioviable for administration at lower concentrations of 10-25 μg/ml. SEM imaging of RBCs demonstrate the evident transformations in cell shapes at different stages upon treatment with nanostructures. Interestingly, doped vanadate-based nanostructures were determined to be pro-coagulant at higher concentrations, reducing the coagulation time from 7min (control) to ∼3min at higher concentrations. The effect of hydrodynamic size disparity in human blood plasma has been elucidated with phenomenon of formation of Plasma Protein Corona, increasing the system size up to ∼4 times. The observations signify major progress in the domain of nanoparticle-erythrocyte interaction and shall act as a viable reference for developing effective and biocompatible NPs for theranostic applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116143"},"PeriodicalIF":5.4,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975642","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}

{"title":"Functionalized metal oxide nanoparticles and their applications in bacterial infections, cancer treatment, and gene therapy: A review","authors":"Niloufar Torabi Fard ,&nbsp;Homayon Ahmad Panahi ,&nbsp;Elham Reza Soltani ,&nbsp;Elham Moniri ,&nbsp;Mohammadreza Mahdavijalal","doi":"10.1016/j.inoche.2026.116149","DOIUrl":"10.1016/j.inoche.2026.116149","url":null,"abstract":"<div><div>The research community is increasingly focused on functionalized metal oxide nanoparticles (MONPs) due to their innovative biomedical applications, which include combating bacterial infections, supporting cancer treatments, and enhancing gene delivery systems. The unique physicochemical properties of MONPs make them excellent components for designing targeted drug delivery systems (DDSs), as they offer exceptional stability, adjustable sizes and shapes, and versatile surface modification features. MONPs exhibit multiple beneficial characteristics for addressing persistent oncological challenges, as they help resolve drug resistance issues and improve drug delivery performance while reducing adverse effects associated with conventional treatments such as chemotherapy and radiotherapy. Additionally, the controlled generation of reactive oxygen species (ROS) through MONPs provides them with strong antibacterial properties, positioning them as potential solutions against drug-resistant bacterial infections. Gene therapy researchers have also adopted MONPs as efficient non-viral vectors for transporting genetic material, including DNA, CRISPR-Cas9 components, and small interfering RNA, enabling precise gene editing or silencing. The biological interactions of MONPs, along with their therapeutic effects, depend significantly on factors such as particle size, molecular shape, surface charge, and aggregation patterns, highlighting the need for careful design to ensure compatibility with biological systems while minimizing toxicological risks. A comprehensive examination of MONPs synthesis methods and functionalization techniques reveals their biomedical applications, particularly in cancer treatment, antimicrobial solutions, and gene delivery systems. Consequently, MONPs hold great potential to redefine modern medicine through enhanced performance and ongoing innovations.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116149"},"PeriodicalIF":5.4,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975260","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}

{"title":"Copper(II) complexes with naphthalene-functionalized N-salicylidene aniline schiff bases: Synthesis, crystal structures, photophysical properties and theoretical calculations","authors":"Elizaveta V. Panova ,&nbsp;Julia K. Voronina ,&nbsp;Tatyana M. Burkhanova ,&nbsp;Damir A. Safin","doi":"10.1016/j.inoche.2026.116152","DOIUrl":"10.1016/j.inoche.2026.116152","url":null,"abstract":"<div><div>We report on the synthesis and characterization of two mononuclear homoleptic copper(II) complexes [Cu(L^I)₂] (<strong>1</strong>) and [Cu(L^II)₂] (<strong>2</strong>), where L^I and L^II are the monodeprotonated forms of <em>N</em>-naphth-1-ylsalicylidenimine (<strong>HL</strong>^I) and <em>N</em>-naphth-1-yl-3-methoxysalicylidenimine (<strong>HL</strong>^II), which were synthesized by condensing 1-naphthylamine with either salicylaldehyde or 3-methoxysalicylaldehyde, followed by the addition of copper acetate. Crystals of <strong>1</strong> and <strong>2</strong> suitable for X-ray diffraction were obtained, and their compositions were confirmed by elemental analysis. Spectroscopic analysis (FTIR, Raman and UV–Vis) revealed characteristic bands for the organic fragments, as well as ligand-to-metal and d-d charge transfers, with minor spectral differences between two complexes. Using thermogravimetric analysis (TGA), we found that complexes <strong>1</strong> and <strong>2</strong> decompose in an air‑argon mixture flow in two distinct steps, yielding CuO and Cu as the end products, respectively. X-ray diffraction showed that both complexes form a square planar CuN₂O₂ coordination core from two ligands in a <em>trans</em>-configuration. A key structural difference is the significant deviation of the copper atom from the coordination plane in complex <strong>1</strong>, resulting in a “step” type distortion, which is not present in complex <strong>2</strong>. The crystal packing in both structures is dominated by C–H⋯π interactions, forming supramolecular chains in complex <strong>1</strong> and 2D layers in complex <strong>2</strong>, with no significant π⋯π interactions. Hirshfeld surface analysis confirmed that the packing is primarily stabilized by reciprocal H⋯H and H⋯C contacts. Computational studies of the optimized molecular geometries agreed with the experimental structures and provided insights into their electronic properties. The complexes were found to be soft electrophiles with good electron-accepting abilities. Molecular electrostatic potential maps identified nucleophilic and electrophilic sites consistent with the observed intermolecular interactions. Finally, molecular docking studies suggested that they have a pronounced potential as inhibitors for AChE and BChE, with complex <strong>1</strong> being particularly effective against BChE. Their calculated ligand efficiencies suggest they could be more potent than Memantine, a known Alzheimer's medication.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116152"},"PeriodicalIF":5.4,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975148","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}

{"title":"In vitro cytocompatibility and molecular docking studies of a pectin-Ag-TiO2 nanocomposite hydrogel for enhanced diabetic wound healing","authors":"M. Kanagalakshmi,&nbsp;S. Gopika Devi,&nbsp;Anitha Pius","doi":"10.1016/j.inoche.2026.116153","DOIUrl":"10.1016/j.inoche.2026.116153","url":null,"abstract":"<div><div>A pectin-based Ag-TiO₂-<em>Ficus carica</em> L. biocomposite hydrogel was fabricated and evaluated for its potential in diabetic wound healing. It exhibited a uniform, porous structure with the incorporation of Ag-doped TiO₂ nanoparticles within the pectin framework, as evidenced by FTIR, XRD, SEM and GC–MS analyses. The hydrogel exhibited extremely potent antibacterial activity (0.9 μg/mL) against <em>S. aureus</em> and <em>E. coli</em>, along with strong antioxidant activity (67%) and anti-inflammatory activity (79%). In addition, superior antidiabetic potential was also demonstrated through α-amylase inhibition (66.37%) and inhibition of α-glucosidase by 74.13%. Excellent hemocompatibility (2.44% hemolysis), very good viability of fibroblasts (up to 97%), and significant cell migration (wound closure by 90.73%) demonstrate overall cytocompatibility. Apart from these properties, its optimal mechanical integrity and moisture-retention ability make it a suitable candidate for treating chronic wound conditions. In brief, the Ag-TiO₂-pectin composite hydrogel is an extremely promising inorganic-biopolymer hybrid system for advanced wound care in diabetes.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116153"},"PeriodicalIF":5.4,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975639","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}

{"title":"Decontamination of Se (IV) ions from aqueous solution by an m-phenylenediamine-based polyvinyl chloride adsorbent: Equilibrium, kinetic and thermodynamic studies","authors":"Hussin A.M. Ahmed ,&nbsp;Bahig M. Atia","doi":"10.1016/j.inoche.2025.116078","DOIUrl":"10.1016/j.inoche.2025.116078","url":null,"abstract":"<div><div>The effectiveness of a new <em>m</em>-phenylenediamine-based polyvinyl chloride adsorbent (PVC-PHDA) was thoroughly studied for its ability to remove selenium ions from water, especially from drinking water containing selenium at 30 μg/L. The adsorbent was extensively characterized using various analytical techniques, confirming its successful synthesis and structural stability. Key experimental parameters, such as pH, mixing time, initial selenium concentration, amount of adsorbent, co-ion interference, temperature, and elution agents, were carefully optimized. Under optimal conditions (25 °C, pH 3, 15 min shaking, initial concentration of 150 mg/L), PVC-PHDA achieved a maximum uptake capacity of 63.2 mg/g, effectively removing up to 127 mg/L of Se⁴⁺ ions. The Langmuir isotherm model best fits the experimental data, estimating a maximum adsorption capacity of 62.11 mg/g, closely matching actual results. Kinetic analysis showed that the adsorption involved both first- and second-order mechanisms, with predicted capacities of 63.62 mg/g and 64.14 mg/g, respectively. The Dubinin-Radushkevich (D-R) treatment approved that the value of adsorption energy E (kJ/mol) is 9.805, implying that the adsorption process proceeds via chemisorption. Furthermore, the theoretical saturation capacity, q_D (mg/g), is equal to 65.56 mg/g. Moreover, Temkin isotherm concluded that the value of b_T is equal to 9.91, which is approximately equal to the values of the adsorption energy of the D-R isotherm. Thermodynamic analysis indicated the process was spontaneous (ΔG &lt; 0), exothermic (ΔH = −27.12 kJ/mol), and more favorable at lower temperatures. Notably, 99 % of adsorbed selenium was successfully recovered using a 2 M H₂SO₄ solution, demonstrating the material's excellent regenerability. The adsorbent also showed strong selectivity among various co-ions. According to WHO and EPA guidelines, a single application of PVC-PHDA can reduce selenium levels in drinking water below the safety limit of 30 μg/L.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116078"},"PeriodicalIF":5.4,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975638","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}