Results in Chemistry最新文献

{"title":"Visible light photocatalytic efficiency and corrosion resistance of Zn, Ni, and Cu-doped TiO2 coatings","authors":"Mona Khalaghi ,&nbsp;Masoud Atapour ,&nbsp;Mohamad Mohsen Momeni ,&nbsp;Mohammad Reza Karampoor","doi":"10.1016/j.rechem.2025.102032","DOIUrl":"10.1016/j.rechem.2025.102032","url":null,"abstract":"<div><div>Titanium dioxide (TiO₂) thin films exhibit encouraging photocatalytic activity for the degradation of dyes, organic compounds, and biological contaminants. These thin films were obtained using the sol–gel method to prevent issues related to the leaching and separation of TiO₂ powder. Therefore, this technique could be effective for treating large volumes of wastewater generated by the textile and refining finishing industries. Typically, these wastewater streams contain heavy metals, which can hinder the process of photodegradation. Transition metals often participate in this procedure, allowing them to adsorb onto the surface of the photocatalyst and modify its photocatalytic performance. Consequently, this study investigated the effects of doping TiO₂ with copper, nickel, and zinc. The impact of doping TiO₂ with Cu, Ni, and Zn was examined by considering the morphology, visible light response, corrosion and photocorrosion performance, and photocatalytic activity. Grazing incidence X-ray diffraction (GIXRD) results show that dopants are uniformly distributed in the form of oxide states. Morphology and wettability tests indicate that the addition of dopants into TiO₂ thin films can develop compact structures with a lower crystallite size, improved surface area, and hydrophilic surfaces. The Cu, Ni, and Zn doping coatings show increased visible light absorption, with the band gap decreasing from 3.05 to 2.3, 2.8, and 2.85 eV, respectively. The maximum photocurrent density is observed for a Zn-doped TiO₂ photoelectrode, which facilitates greater light energy utilization for photocatalytic performance. Corrosion measurements under dark and light conditions for doped TiO₂ coatings exhibited contrasting activities, suggesting high electrical conductivity under light illumination.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 102032"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eco-friendly optical sensor membrane for nickel ion detection in water and food samples","authors":"Abdullah H. Alluhayb ,&nbsp;Alaa M. Younis ,&nbsp;Ahmad O. Babalghith ,&nbsp;Alaa S. Amin","doi":"10.1016/j.rechem.2024.102007","DOIUrl":"10.1016/j.rechem.2024.102007","url":null,"abstract":"<div><div>A sustainable method is investigated for the accurate, selective, and highly sensitive identification of minimal nickel ion concentrations across various environments. A unique optical sensing membrane is proposed for detecting Ni²⁺ ions, utilizing the entrapment of 5-(2-benzothiazolylazo)-8-hydroxy-quinoline (BTAHQ) within a matrix of polyvinyl chloride (PVC) combined with dioctyl adipate (DOA). The sensor exhibits a broad linear span ranging from 2.5 to 110 ng mL⁻¹ under pH 4.0 conditions, featuring quantification and detection limits of 2.47 and 0.75 ng mL⁻¹, respectively. The sensor’s maximum wavelength is recorded at 659 nm. Remarkably, the sensor membrane exhibits complete reversibility in its operation, showcasing superior specificity for Ni2⁺ ions even in the presence of a wide range of competing cations and anions within the solution. The membrane exhibited excellent durability for 3.0 min, featured a swift response time (5.0 min), and demonstrated no detectable signs of reagent leaching. The sensor response exhibited a low coefficient of variation (CV) of 1.47 % for 60 ng mL⁻¹ of Ni²⁺ ions, and the CV among seven sensor membranes was 1.63 %. Regenerating the sensor is a straightforward process accomplished with 0.5 mL of 0.1 M HNO₃ solution for 3.0 min. Its full reversibility and excellent selectivity for Ni²⁺ ions in thiel buffer contribute to its efficacy. The suggested optical sensor was effectively employed for nickel determination in food and water samples.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 102007"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CuO-Fe2O3/calcium alginate-carboxymethylcellulose-chitosan as efficient nanocomposite beads for catalytic reduction of water pollutants","authors":"Nujud Maslamani ,&nbsp;Sher Bahadar Khan ,&nbsp;Esraa M. Bakhsh ,&nbsp;Kalsoom Akhtar ,&nbsp;Metab Alharbi","doi":"10.1016/j.rechem.2024.101936","DOIUrl":"10.1016/j.rechem.2024.101936","url":null,"abstract":"<div><div>This study involved the synthesis and catalytic activity testing of new nanocomposite beads (CuO-Fe₂O₃/CA-CMC-Cs) prepared by facile and environmentally friendly approach. CuO-Fe₂O₃ was prepared and applied for the catalytic reduction of 4-nitrophenol (4-NP). The results showed that CuO-Fe₂O₃ demonstrate high catalytic activity toward the reduction of 4-NP to 4-aminophenol (4-AP). Further, CuO-Fe₂O₃ were well-dispersed in the polymeric matrix of CA-CMC-Cs to prepare CuO-Fe₂O₃/CA-CMC-Cs beads via crosslinker agent (AlCl₃). CuO-Fe₂O₃/CA-CMC-Cs beads were also applied for the catalytic reduction of nitrophenol isomers (4-NP, 2-NP, and 2,6-DNP), organic dyes (methyl orange (MO), eosin yellow (EY)) and potassium hexacyanoferrate (K₃[Fe(CN)₆]). K₃[Fe(CN)₆] was found to be effectively reduced by the beads and was completed within 30 s. While the catalytic reduction of 4-NP, EY and MO were completed within 300, 240 and 180 s and the rate constants were discovered to be 1.16 × 10⁻² s⁻¹, 1.68 × 10⁻² s⁻¹ and 1.51 × 10⁻² s⁻¹, respectively. The CuO-Fe₂O₃/CA-CMC-Cs beads catalytic activity was enhanced utilizing 4-NP as a model molecule. The beads had good catalytic activity and may be reused up to three times before losing their effectiveness. Additionally, the ability of the CuO-Fe₂O₃/CA-CMC-Cs beads to reduce 4-NP and MO in real samples such as wastewater, orange juice and strawberry juice was investigated where the reduction percentage was 91.5 %–89.0 % in the real samples. The results demonstrated that the beads were more efficient for reduction of 4-NP and MO in milk, while, in juices required more time and had a lower reduction percentage.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 101936"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanocomposites for extrinsic self-healing polymer Materials: A comprehensive review of their repair behaviour","authors":"Arunima Verma ,&nbsp;Kumud Bhushan ,&nbsp;Harwinder Singh","doi":"10.1016/j.rechem.2024.101973","DOIUrl":"10.1016/j.rechem.2024.101973","url":null,"abstract":"<div><div>The ability of self-healing materials to detect damage and “autonomously” repair it has garnered significant attention in recent decades. This review explores the critical role of nanomaterials and nanostructures in enhancing the healing process, owing to their extensive surface area, abundant functional groups, and unique properties. From a historical perspective, it traces key developments in the design philosophy behind polymer self-healing and provides a comprehensive overview of recent advancements that leverage nanotechnology to improve healing efficiency and introduce novel functionalities. The literature is categorized into three main areas: (i) Material damage causes, typical repairs, and self-healing benefits, (ii) material properties essential for self-healing evaluation, (iii) characterization methods used to assess the healing capacity of these systems. Advanced techniques are discussed to elucidate micro- and nanoscale interactions at polymer interfaces, emphasizing their role in improving self-healing mechanisms. This review concludes by highlighting the practical implications of these advancements and outlining future directions for research, underscoring their potential to revolutionize the development of durable, multifunctional materials for real-world applications.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 101973"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic MXene/g-C3N4 nano catalyst for photocatalytic degradation of clindamycin contaminate in wastewater","authors":"Hadeel A. Abbas,&nbsp;Khalid K. Abbas,&nbsp;Ahmed M.H. Abdulkadhim Al-Ghaban","doi":"10.1016/j.rechem.2024.101934","DOIUrl":"10.1016/j.rechem.2024.101934","url":null,"abstract":"<div><div>The increasing concerns surrounding micropollutant contamination necessitate urgent and effective strategies for their elimination. Several stages explored the photocatalytic degradation of pharmaceutical contaminants in wastewater using novel magnetic g-C₃N₄/MXene nano photocatalysts are synthesized in this work. The surface chemistry, morphology, crystallinity, surface area, and propensity to participate in electron transfer reactions of the g-C₃N₄/MXene nano were characterized using a set of analytical measurements. These analyses confirmed the successful formation of a unique complex with ferromagnetic properties conferred by incorporating Fe₃O₄. After 120 min of sunlight exposure, the g-C₃N₄/MXene magnetic catalyst showed a superior reduction of 92 % of clindamycin in real wastewater. High organic carbon removal of &gt; 38 % was also observed after the 2 h period. The study also observed the stability of the catalyst over four cycles, maintaining a removal level of &gt; 58 %, highlighting its potential applications in water treatment processes by increasing the interlayer spacing, g-C₃N_4, and MXene combined to produce an excellent surface area with more active sites on their surface, which enhanced the transfer of electron/hole pairs and provided excellent degradation capacity.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 101934"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient synthesis of phosphorus-promoted and alkali-modified ZSM-5 catalyst for catalytic dehydration of lactic acid to acrylic acid","authors":"Ainur Syeitkhajy ,&nbsp;Mohammed Alfatih Hamid ,&nbsp;Mehtap Safak Boroglu ,&nbsp;Ismail Boz","doi":"10.1016/j.rechem.2024.101942","DOIUrl":"10.1016/j.rechem.2024.101942","url":null,"abstract":"<div><div>This study presents a novel one-pot synthesis method for phosphorus-enhanced ZSM-5 zeolite, followed by post-synthesis alkali treatment. The resulting catalyst is designed for the sustainable production of acrylic acid (AA) from lactic acid (LA). Adding phosphorus as a promoter during synthesis significantly improved the acid-base properties of the zeolite. Additionally, the alkali treatment contributed to the overall optimization of the catalyst’s performance. Comprehensive analytical techniques, including XRD, BET, FT-IR, TGA, XPS, SEM, ICP-MS, DRIFT spectra, NH₃, and CO₂-TPD, were employed to elucidate the structural and acid-base properties of the ZSM-5/P-Na catalyst. Finally, an experimental design was developed to optimize the important operational variables in the LA dehydration reaction. The optimized ZSM-5/P-Na catalyst demonstrated excellent performance, achieving 83 % AA selectivity and 98 % LA conversion with a long catalytic lifetime of 50 h. This research demonstrates a promising approach for developing efficient catalysts for sustainable AA production.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 101942"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Escin-loaded Glutaraldehyde-Albumin nanoparticle system for enhancing anticancer activity on lung cancer A549 cells","authors":"Murugan Alwarkurichi Munusamy ,&nbsp;Muruganantham Bharathi ,&nbsp;Abdurahman Hajinur Hirad ,&nbsp;Abdullah A. Alarfaj ,&nbsp;Samer Hasan Hussein-Al-Ali ,&nbsp;Shobana Sampath ,&nbsp;Ali Kudumba","doi":"10.1016/j.rechem.2025.102021","DOIUrl":"10.1016/j.rechem.2025.102021","url":null,"abstract":"<div><div>The study focuses on synthesizing, characterizing, and evaluating escin-loaded glutaraldehyde-albumin nanoparticles (NPs) against lung cancer A549 cells. The NPs were characterized using various methods, including UV–visible spectroscopy, photoluminescence, XRD, DLS, and TEM and SEM analyses. The cytotoxic effects of the NPs were evaluated using the WST-1 assay against A549 cells, and the expression of apoptotic proteins and oxidative stress markers was measured. The NPs were validated through FT-IR and DLS studies, and the WST-1 assay results showed that the synthesized albumin-escin NPs effectively inhibited A549 cells, induced apoptosis, and increased ATPase activity, and LDH enzyme release. The expression of apoptotic proteins and oxidative markers increased, while antiapoptotic protein and antioxidant levels were reduced in the albumin-Escin NPs-treated A549 cells. The study suggests that albumin-escin NPs have the potential as a promising anticancer agent against lung cancer by decreasing cell viability and promoting apoptosis.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 102021"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization, structural study, Hirshfeld surface, vibrational properties and thermal analysis of a supramolecular hybrid compound: (C8H14N2)4·(TeBr6)3·2(Br)","authors":"Marwa Mhiri ,&nbsp;Sergiu Shova ,&nbsp;Mohamed Boujelbene","doi":"10.1016/j.rechem.2024.101969","DOIUrl":"10.1016/j.rechem.2024.101969","url":null,"abstract":"<div><div>A novel supramolecular hybrid compound, <strong>(C₈H₁₄N₂)₄·(TeBr₆)₃</strong>·<strong>2(Br)</strong>, was synthesized at room temperature through slow evaporation and thoroughly characterized. Single-crystal X-ray diffraction analysis revealed its monoclinic structure (space group C2/c), with the crystal stabilized by N<img>H…Br hydrogen bonds, anion…π⁺ and π…π interactions. Hirshfeld surface analysis quantified the intermolecular interactions, highlighting H…Br as the most dominant (55.7 %). Vibrational properties analyzed using FT-IR and Raman spectroscopy confirmed the functional groups of both organic and inorganic components, while thermal analysis demonstrated stability up to 100 °C. Preliminary insights into its structural features, such as the presence of [TeBr₆]²⁻ units and π interactions, suggest potential catalytic activity alongside optoelectronic and dielectric applications, warranting further investigation.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 101969"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a novel and efficient method for synthesizing N-benzyl-substituted di-benzimidazole derivatives","authors":"Arjun Bodkhe ,&nbsp;Dattatraya Pansare ,&nbsp;Dnyaneshwar Karpe ,&nbsp;Vilas Sudrik ,&nbsp;Manohar Suryawanshi ,&nbsp;Rahul Shinde ,&nbsp;Shamrao Lawande","doi":"10.1016/j.rechem.2024.101937","DOIUrl":"10.1016/j.rechem.2024.101937","url":null,"abstract":"<div><div>In this study, we developed a series of novel dibenzimidazole derivatives <strong>(5a–l)</strong> through a successful synthesis process. The procedure began with the coupling of N-methylbenzene-1,2-diamine <strong>(1)</strong> and carboxylic acid <strong>(2)</strong> using EDC·HCl and DMAP as a catalyst in an appropriate solvent. The resulting compound was then subjected to cyclization in acetic acid at 100–110 °C. The intermediate dibenzimidazole derivatives <strong>(3)</strong> were further reacted with a variety of aromatic benzyl bromides or chlorides with different substituents <strong>(4)</strong> in the presence of potassium carbonate and acetonitrile at room temperature. This conventional approach resulted in the efficient production of the target compounds with high yields in a short reaction time. The synthesis method is both environmentally friendly and cost-effective. The newly synthesized benzimidazole derivatives were characterized using advanced spectral techniques.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 101937"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Schiff bases and their possible therapeutic applications: A review","authors":"Nidhi ,&nbsp;Siddharam ,&nbsp;Devendra Pratap Rao ,&nbsp;Amit Kumar Gautam ,&nbsp;Ashish Verma ,&nbsp;Yashveer Gautam","doi":"10.1016/j.rechem.2024.101941","DOIUrl":"10.1016/j.rechem.2024.101941","url":null,"abstract":"<div><div>Schiff base (SB) represents a category of organic compounds in which a nitrogen atom with a double bond maintains its stereochemistry. The long history of Schiff base has been fascinating chemists to explore its new dimension by generating optimal analogs with their therapeutic effects to serve the humankind. Schiff base coupled with metals evolves as a new stable molecule with their therapeutic indication either as antifungal, antibacterial, anticancer or antiproliferative agents. Fusion of Schiff base with heterocyclic compounds like pyrazole or imidazole moieties conjointly crop different molecular entities with antifungal properties. Similarly, the amalgamation of Schiff base with benzene derivatives yields a new molecule with high antibacterial properties. However, further structural optimization may showcase other antimicrobial activities to prove this molecular entity as a potential druggable candidate. Apart from these, the well-known Schiff base anticancer and antiproliferative properties of this molecular entity are being explored. Schiff base, however, is suspected of causing cancer and can cause severe eye discomfort.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"13 ","pages":"Article 101941"},"PeriodicalIF":2.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}