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Optical enrichment of polyvinyl alcohol films by neodymium oxide and multi-walled carbon nanotube for optical applications
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-02 DOI: 10.1016/j.jics.2025.101614
T.S. Soliman , S. Abouelazm , Mahmoud M. Hessien
{"title":"Optical enrichment of polyvinyl alcohol films by neodymium oxide and multi-walled carbon nanotube for optical applications","authors":"T.S. Soliman ,&nbsp;S. Abouelazm ,&nbsp;Mahmoud M. Hessien","doi":"10.1016/j.jics.2025.101614","DOIUrl":"10.1016/j.jics.2025.101614","url":null,"abstract":"<div><div>The current topic addresses the structure and optical features of the polyvinyl alcohol (PVA) film after adding two different components. Four composite matrices were prepared via the casting process: neat PVA film, PVA film blended with multi-walled carbon nanotube (MWCNT), and PVA-MWCNT blend film reinforced with 2 % and 4 % Nd<sub>2</sub>O<sub>3</sub>. The composite films were characterized by various techniques, including X-ray diffractometer (XRD), Fourier-transform infrared (FTIR), optical microscope, and ultraviolet–visible spectrophotometer. The XRD and FTIR investigation revealed that adding MWCNT and Nd<sub>2</sub>O<sub>3</sub> alters the phase structure of the PVA film, and the crystallinity decreases. The PVA film's absorbance increases by adding MWCNT, besides the decrease of the transmittance by adding Nd<sub>2</sub>O<sub>3</sub> nanoparticles in the UV region. The bandgap energy of the PVA film decreased from 5.44 eV to 4.18 eV. In addition, doping the PVA-MWCNT blend with Nd<sub>2</sub>O<sub>3</sub> nanoparticles declines the bandgap energy to about 3.27 eV and 3.06 eV by adding 2 % and 4 % Nd<sub>2</sub>O<sub>3</sub>, respectively. Linear and nonlinear optical parameters like refractive index (linear and nonlinear), metallization criteria, and optical susceptibility were enhanced by adding MWCNT and Nd<sub>2</sub>O<sub>3</sub> nanoparticles. The PVA-MWCNT-Nd<sub>2</sub>O<sub>3</sub> composite film with enhanced optical parameters is promising for optical and biomedical applications.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 3","pages":"Article 101614"},"PeriodicalIF":3.2,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143146261","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}
引用次数: 0
Synthesis, characterization, and in vitro antimicrobial studies of new Mn(II), Fe(III) and Ni(III) complexes based on 4-[(2 sulfanylphenyl)diazenyl]naphthalen-1-ol ligand
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2025.101601
Mai M. Khalaf , Hany M. Abd El-Lateef , Mohamed Gouda , Amro Ahmed Taha , Antar A. Abdelhamid , Mohamed Abdelbaset , Abdulelah H. Alsulami , Aly Abdou
{"title":"Synthesis, characterization, and in vitro antimicrobial studies of new Mn(II), Fe(III) and Ni(III) complexes based on 4-[(2 sulfanylphenyl)diazenyl]naphthalen-1-ol ligand","authors":"Mai M. Khalaf ,&nbsp;Hany M. Abd El-Lateef ,&nbsp;Mohamed Gouda ,&nbsp;Amro Ahmed Taha ,&nbsp;Antar A. Abdelhamid ,&nbsp;Mohamed Abdelbaset ,&nbsp;Abdulelah H. Alsulami ,&nbsp;Aly Abdou","doi":"10.1016/j.jics.2025.101601","DOIUrl":"10.1016/j.jics.2025.101601","url":null,"abstract":"<div><div>This study successfully synthesized three novel metal complexes: MnSDN, FeSDN, and NiSDN, and thoroughly characterized them using UV spectroscopy, infrared (IR) spectroscopy, mass spectrometry, elemental analysis, conductivity and magnetic measurements, as well as thermogravimetric analysis (TGA). The IR spectral analysis indicates that the azo ligand, 4-[(2-sulfanylphenyl)diazenyl]naphthalen-1-ol (SDN), coordinates with metal ions via its nitrogen atoms in the azo (-N<img>N-) bond and sulfur atoms in the thiol (-SH) moiety. Thermal analysis (TGA) further revealed the quantity &amp; binding sites of H<sub>2</sub>O molecules within the complex compounds. Additionally, <em>in vitro</em> assessments of the antibacterial &amp; antifungal activities of the ligand and its metal complex components were conducted against various pathogenic bacteria &amp; fungi. Particularly, the metal complex products revelation significantly greater inhibitory effects on certain microorganisms compared to the uncoordinated ligand. Among the tested compounds, the metal complexes demonstrated superior biological activity, whereas the free ligand showed the least efficacy. These promising results suggest that these metal complexes possess potential physiological effects and may serve as valuable candidates for various medical applications in the future.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101601"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140683","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}
引用次数: 0
Unveils the macromolecular structure of high-sulfur Indian coal for hydrogen production
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2024.101558
Tonkeswar Das , Debashis Sarmah , Gaurav Jhaa , Bhargab Das , Preetom Kishore Nath , Abhishek Borborah , Mousumi Bora
{"title":"Unveils the macromolecular structure of high-sulfur Indian coal for hydrogen production","authors":"Tonkeswar Das ,&nbsp;Debashis Sarmah ,&nbsp;Gaurav Jhaa ,&nbsp;Bhargab Das ,&nbsp;Preetom Kishore Nath ,&nbsp;Abhishek Borborah ,&nbsp;Mousumi Bora","doi":"10.1016/j.jics.2024.101558","DOIUrl":"10.1016/j.jics.2024.101558","url":null,"abstract":"<div><div>In this study, for the first time, we reported the molecular structure of Cenozoic coal from the northeastern region of India, which is a rare form of coal and known as low quality due to high sulfur, non-coking nature, low ash fusion temperature, and high volatile matter. These findings are crucial for efficiently utilizing this coal in hydrogen production. The analysis revealed that the coal has a high aromaticity (77.33 %) and aliphatic structure (22.66 %), with a molecular formula of C<sub>179</sub>H<sub>140</sub>O<sub>32</sub>N<sub>3</sub>S<sub>4</sub>. The bridge to peripheral aromatic carbon ratio is 0.657, indicating the prevalence of tetracyclic pyrene as the primary aromatic skeleton, along with auxiliary structural units such as pentacene, chrysene, anthracene, naphthalene, and benzene. The coal contains oxygen-containing functional groups and structures such as pyridine, pyrrolic, thiophenol, and thiophene. The study also included creating and optimizing 2D and 3D coal macromolecular structures through molecular dynamics simulations and global hybrid density functional theory. Additionally, the thermal properties and model free kinetic study of the coal were investigated, showing an ignition temperature of 416 °C and an apparent activation energy of 171.36 kJ mol<sup>−1</sup>, providing insight into its degradation behaviour at different temperatures.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101558"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140727","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}
引用次数: 0
Fabrication and characterization of Ca-BTC metal-organic framework/polylactic acid/gelatine porous composite as a bone tissue engineering scaffold
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2025.101590
Zeinab Ansari-Asl , Tahereh Sedaghat , Elham Hoveizi , Soghra Nikpour
{"title":"Fabrication and characterization of Ca-BTC metal-organic framework/polylactic acid/gelatine porous composite as a bone tissue engineering scaffold","authors":"Zeinab Ansari-Asl ,&nbsp;Tahereh Sedaghat ,&nbsp;Elham Hoveizi ,&nbsp;Soghra Nikpour","doi":"10.1016/j.jics.2025.101590","DOIUrl":"10.1016/j.jics.2025.101590","url":null,"abstract":"<div><div>The main aim of tissue engineering (TE) is replacement or regeneration of organs or tissues that are damaged by injuries or diseases. In this study, a novel porous composite scaffold, Ca-BTC MOF/PLA/Gelatine, was prepared by incorporating a Ca-based metal-organic framework (Ca-BTC MOF) into polylactic acid (PLA) and gelatine mixture. PLA/Gelatine scaffold was also fabricated as a control. The as-obtained materials were studied by various techniques such as FT-IR (Fourier-transform infrared), XRD (X-ray diffraction), SEM (scanning electron microscope), and EDS (energy-dispersive spectroscopy) elemental mapping. The EDS elemental mapping and SEM images confirmed the homogeneous dispersion of the Ca-BTC MOF particles into the porous scaffold. Additionally, SEM images confirmed the interconnected porous morphology of the as-prepared scaffold. The obtained scaffold was evaluated in terms of structural and biocompatibility properties, as well as its ability to promote bone development. <em>In vivo</em> studies confirmed that the Ca-BTC MOF/PLA/Gelatine scaffold has superior bone formation capability compared to the PLA/Gelatine group. Additionally, this scaffold exhibited enhanced bone formation compared to the control. These findings suggest that the Ca-BTC MOF/PLA/Gelatine scaffold is a promising material for bone regeneration, with potential applications in orthopedics.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101590"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140788","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}
引用次数: 0
Predictive analysis of adsorption dynamics of textile dyes on date seed carbon (DSC)
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2025.101576
Tejas Boralkar, Satish Mane, Manohar Sawant, Vishwanath Dalvi
{"title":"Predictive analysis of adsorption dynamics of textile dyes on date seed carbon (DSC)","authors":"Tejas Boralkar,&nbsp;Satish Mane,&nbsp;Manohar Sawant,&nbsp;Vishwanath Dalvi","doi":"10.1016/j.jics.2025.101576","DOIUrl":"10.1016/j.jics.2025.101576","url":null,"abstract":"<div><div>This research investigates the efficacy of date seed carbon (DSC), an eco-friendly and cost-effective adsorbent derived from agricultural waste, for the removal of textile dyes from wastewater. Textile effluents, which carry high pollutant loads, pose significant environmental threats. Batch adsorption experiments were conducted under varying conditions of dye concentration (50–150 mg/L), stirring speed (100–800 rpm), and adsorbent weight (0.5–1.5 g). The adsorption data were analysed using Freundlich and Langmuir isotherm models, with the maximum adsorption capacity observed at 72.5 mg/g for Reactive Green dye. The predictive model developed in this study determined a diffusion coefficient of <span><math><mrow><mn>1.2</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>−</mo><mn>9</mn></mrow></msup></mrow></math></span> cm<sup>2</sup>/s and a mass transfer coefficient of <span><math><mrow><mn>3.5</mn><mo>×</mo><msup><mn>10</mn><mrow><mo>−</mo><mn>4</mn></mrow></msup></mrow></math></span> cm/s under optimal conditions. The experimental results demonstrated dye removal efficiencies exceeding 90 % for concentrations up to 100 mg/L. These findings establish DSC as a promising candidate for efficient, sustainable, and industrial-scale textile effluent treatment. The presented study highlights the potential of DSC to advance eco-friendly wastewater management solutions and reduce environmental impacts.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101576"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140792","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}
引用次数: 0
Nano Fe2O3/Ag/CeO2 catalyzed solvent free synthesis of 1,8 – di oxo octa hydro xanthene derivatives as potential anti-cancer agents
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2025.101600
Mohammad Kazem Mohammadi , Nasim Kakesh
{"title":"Nano Fe2O3/Ag/CeO2 catalyzed solvent free synthesis of 1,8 – di oxo octa hydro xanthene derivatives as potential anti-cancer agents","authors":"Mohammad Kazem Mohammadi ,&nbsp;Nasim Kakesh","doi":"10.1016/j.jics.2025.101600","DOIUrl":"10.1016/j.jics.2025.101600","url":null,"abstract":"<div><div>Biologically active 1,8–dioxo-octa-hydro-xanthene derivatives were synthesized using Fe<sub>2</sub>O<sub>3</sub>/Ag/CeO<sub>2</sub> nanoparticles as a catalyst under solvent-free conditions. synthesized xanthene derivatives have Excellent yields of products and simple work-up are attractive features of this green protocol. The findings indicate that the catalyst can be used for a minimum of five cycles with only a slight decline in catalytic activity. Furthermore, the catalyst's reusability was also examined in the case of benzaldehyde at 90 °C under solvent-free conditions. Fe<sub>2</sub>O<sub>3</sub>/Ag/CeO<sub>2</sub> nanoparticles were thoroughly analyzed using XRD, FESEM, and UV techniques. Various substituted xanthenes were prepared and tested for activity against HeLa, SKOV-3, LS-180, MCF7, and Raji cell lines and cultures. The results of the cytotoxic study indicated that the compounds exhibited weak to moderate activity. The reactivity order of halogen substitution appeared to be F &gt; Cl &gt; Br. 3a and 3b exhibited moderate activity against cell lines. The exist of an electron-withdrawing group to the opposite aromatic ring of dihydroxyxanthene derivatives increased the anticancer activity, while the electron-donating group had the opposite effect.</div><div>Furthermore, compound 3f with fluorine substitution demonstrated higher activity, highlighting the significance of this site for the cytotoxic activity of these compounds.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101600"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140794","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}
引用次数: 0
Surface modified CaO nanoparticles with CMC/D-carvone for enhanced anticancer, antimicrobial and antioxidant activities
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2025.101586
Mickymaray Suresh , Abdulaziz S. Alothaim , Faleh A. Alfaleh , Noorah Alsowayeh , Kaviya Suresh , Indumathi Thangavelu , Palanisamy Arulselvan
{"title":"Surface modified CaO nanoparticles with CMC/D-carvone for enhanced anticancer, antimicrobial and antioxidant activities","authors":"Mickymaray Suresh ,&nbsp;Abdulaziz S. Alothaim ,&nbsp;Faleh A. Alfaleh ,&nbsp;Noorah Alsowayeh ,&nbsp;Kaviya Suresh ,&nbsp;Indumathi Thangavelu ,&nbsp;Palanisamy Arulselvan","doi":"10.1016/j.jics.2025.101586","DOIUrl":"10.1016/j.jics.2025.101586","url":null,"abstract":"<div><div>The rising prevalence of antimicrobial resistance and the continued challenge to cancer therapy are in desperate need of developing innovative therapeutic strategies. In this regard, the present research work focuses on the development of CaO NPs and CaO-CMC-Dcar nanocomposites for enhanced antimicrobial and anti-cancer activities. CaO nanoparticles were synthesized by facile one pot chemical approach and eventually functionalized with CMC and D-carvone biomolecules. XRD analysis revealed that the crystallite size for CaO and CaO-CMC-Dcar nanoparticles was found to be 21.18 nm and 17.02 nm respectively. The band gap values obtained for CaO and CaO-CMC-Dcar nanoparticles were 4.44 eV, and 4.25 eV respectively. The CaO-CMC-Dcar nanoparticles show absorption maxima at 292 nm, slightly red-shifted from bare CaO nanoparticles. HRTEM and SEM analysis revealed that the prepared samples were roughly spherical and agglomerated in nature. Antimicrobial activity was evaluated against methicillin-resistant <em>Staphylococcus aureus</em> (MRSA) and <em>Candida albicans</em>. The zone of inhibition (ZOI) for CaO-CMC-Dcar nanoparticles against MRSA and <em>C. albicans</em> was 20.1 ± 0.3 mm and 21.1 ± 0.2 mm, respectively, significantly higher than that of pure CaO nanoparticles (14.1 ± 0.2 mm and 13.2 ± 0.1 mm) and comparable to standard anti-bacterial streptomycin and antifungal fluconazole discs. Anticancer activity was assessed via MTT assay against MOLT-4 blood cancer cells, where the IC<sub>50</sub> values for CaO and CaO-CMC-Dcar nanoparticles were 22.6 μg/mL and 21.54 μg/mL, respectively. Additionally, CaO-CMC-Dcar nanoparticles exhibited enhanced antioxidant activity (80 %) compared to CaO (70 %) at 20 μg/mL, with performance comparable to that of Vitamin C. Experimental results revealed that the CaO-CMC-Dcar nanoparticles exhibited superior biological activity compared to pure CaO nanoparticles.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101586"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140795","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}
引用次数: 0
Synthesis and characterization of oleyl-based green surfactants for enhanced pigment dispersion
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2025.101583
Hansraj V. Patil , Ravindra D. Kulkarni , Mohammad Ahmad Wadaan , Nilesh P. Badgujar , Karuppiah Nagaraj , K. Raja , Gajanan S. Ghodake
{"title":"Synthesis and characterization of oleyl-based green surfactants for enhanced pigment dispersion","authors":"Hansraj V. Patil ,&nbsp;Ravindra D. Kulkarni ,&nbsp;Mohammad Ahmad Wadaan ,&nbsp;Nilesh P. Badgujar ,&nbsp;Karuppiah Nagaraj ,&nbsp;K. Raja ,&nbsp;Gajanan S. Ghodake","doi":"10.1016/j.jics.2025.101583","DOIUrl":"10.1016/j.jics.2025.101583","url":null,"abstract":"<div><div>This study reports the synthesis and evaluation of disodium oleyl ethanolamide sulfosuccinate monoester (DSOESS) as a surfactant, emphasizing its physicochemical properties and efficacy in dispersing pigment particles in water-based color concentrates. DSOESS, a moderate anionic surfactant, demonstrates significant potential for enhancing dispersion due to its surface-active properties. The synthesis involved the reaction of oleic acid with monoethanolamine, followed by esterification with maleic anhydride and subsequent sulfonation with sodium bisulfite. Structural confirmation was achieved through FTIR and <sup>1</sup>H NMR spectroscopy, and physicochemical properties, including pH and amine value, were assessed. Dispersion performance was evaluated using high-speed and bead milling techniques, with bead milling yielding superior particle size reduction. Additionally, DSOESS exhibited excellent foaming ability, foam stability, and antimicrobial activity. These findings establish DSOESS as a promising dispersing agent for pigment concentrates with potential applications in industrial formulations.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101583"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140670","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}
引用次数: 0
Polyvinyl pyrrolidone oxime-TiO2-phenylalanine composite as a moderate corrosion resistant over low-carbon steel surface in marine environment: Computational, synthesis and electrochemical findings
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2025.101598
Priti Pahuja , Meena Yadav , Rajat Arora , Monika Dhanda , Mantesh Kumari Yadav , Gaurav Jhaa , Ajay Satija , Sumit Kumar , Suman Lata
{"title":"Polyvinyl pyrrolidone oxime-TiO2-phenylalanine composite as a moderate corrosion resistant over low-carbon steel surface in marine environment: Computational, synthesis and electrochemical findings","authors":"Priti Pahuja ,&nbsp;Meena Yadav ,&nbsp;Rajat Arora ,&nbsp;Monika Dhanda ,&nbsp;Mantesh Kumari Yadav ,&nbsp;Gaurav Jhaa ,&nbsp;Ajay Satija ,&nbsp;Sumit Kumar ,&nbsp;Suman Lata","doi":"10.1016/j.jics.2025.101598","DOIUrl":"10.1016/j.jics.2025.101598","url":null,"abstract":"<div><div>Corrosion resisting aptitude of modified polymer polyvinyl pyrrolidone as its oxime or PVPO after compositing with titanium dioxide (TiO<sub>2</sub>) and phenylalanine (Phe) over frequently used low alloy steel (mild steel) or low carbon steel (LCS) surface is studied in the presence of saline water. Sol-gel method is adopted to synthesize PVPO-TiO<sub>2</sub>-Phe, as a safe and influential corrosion inhibitor for mild steel in aqueous 3.5 % NaCl medium. The inhibition efficiency of the composite was explored using weight loss, electrochemical polarization and impedance spectroscopic techniques. Morphology of LCS substrate was tested by AFM and SEM techniques in presence and absence of the modified composite. Results showed that the trio combination prepared through sol-gel process provided appreciable protection, i. e. 85 % against corrosion in marine environment. Molecular Dynamics as well as the Density Functional Theory related studies are applied to correlate with the experimental inferences and consequent upon, these are found in fit relationship with the empirical data. A brief overview for protection mechanism that may be offered by the composite over the metal surface against the aggressive chloride ions is also comprehended.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101598"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140684","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}
引用次数: 0
Antimicrobial evaluation of microwave-assisted synthesized chromone derivative schiff base with divalent metal complexes and experimental methodologies
IF 3.2 4区 化学
Journal of the Indian Chemical Society Pub Date : 2025-02-01 DOI: 10.1016/j.jics.2025.101585
Poonam Yadav, Suman Kumari, Shobhana Sharma, Seema, Mamta Ranka
{"title":"Antimicrobial evaluation of microwave-assisted synthesized chromone derivative schiff base with divalent metal complexes and experimental methodologies","authors":"Poonam Yadav,&nbsp;Suman Kumari,&nbsp;Shobhana Sharma,&nbsp;Seema,&nbsp;Mamta Ranka","doi":"10.1016/j.jics.2025.101585","DOIUrl":"10.1016/j.jics.2025.101585","url":null,"abstract":"<div><div>Green chemistry concepts are in line with microwave-assisted synthesis as it is thought to be environmentally beneficial. This type of energy has been used widely and effectively in the synthesis of metal complexes and in organic compounds. The recent coordination chemistry accentuates the study of Schiff bases metal complexes properties entering the microscale from the macro level, and similar to peering into the interior structure of compounds. Synthesis of divalent Cobalt, Nickel and Copper complexes with Schiff base (E)-6-methyl-3-(1-(2-phenylhydrazineylidene) ethyl)-4H-chromen-4-one [L<sub>1</sub>] as primary ligand and 8-Hydroxyquinoline (L<sub>2</sub>) is used as a secondary ligand. Schiff base (E)-6-methyl-3-(1-(2-phenylhydrazineylidene) ethyl)-4H-chromen-4-one [L<sub>1</sub>] derived from phenyl hydrazine with 3-formyl-6-methylchromone. The structural investigation was carried out using FTIR, mass spectra, <sup>1</sup>H NMR, <sup>13</sup>C NMR, and electronic spectra. The thermal behaviour of synthesized complexes was investigated through thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC) techniques. The crystalline nature of complexes was investigated through the powder XRD technique. Analytic data, elemental analysis, and molar conductance characterised novel transition metal complexes with freshly synthesized ligand (L<sub>1</sub>). The elemental analysis reveals the molar ratio of metal complexes as 1:1:1 (M:L<sub>1</sub>:L<sub>2</sub>) and synthesized metal complexes have octahedral geometry. Antimicrobial efficacy was examined using the agar well diffusion method at various concentrations. Given the biological activity, the effectiveness of antimicrobial properties is typically more potent concerning metal complexes than free Schiff base ligands according to biological data.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 2","pages":"Article 101585"},"PeriodicalIF":3.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140686","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}
引用次数: 0
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