Journal of Saudi Chemical Society最新文献

{"title":"Enhancing hydrochar production and proprieties from biogenic waste: Merging response surface methodology and machine learning for organic pollutant remediation","authors":"Fatima Moussaoui ,&nbsp;Faiçal El Ouadrhiri ,&nbsp;Ebraheem-Abdu Musad Saleh ,&nbsp;Soukaina El Bourachdi ,&nbsp;Raed H. Althomali ,&nbsp;Asmaa F. Kassem ,&nbsp;Abderrazzak Adachi ,&nbsp;Kakul Husain ,&nbsp;Ismail Hassan ,&nbsp;Amal Lahkimi","doi":"10.1016/j.jscs.2024.101920","DOIUrl":"10.1016/j.jscs.2024.101920","url":null,"abstract":"<div><p>The valorization of biogenic waste by hydrothermal carbonization is widely discussed in research. However, to our knowledge, no study has combined almond shells and olive pomace to synthesize a solid carbon material. The purpose of this study is to enhance the hydrochar process from AS and OP using RSM methodology and machine learning models: ANN, SVM and XG-Boost. Subsequently, a study was carried out on the removal of organic pollutants by the synthesized material. The optimum Co-HTC operating conditions obtained at 180 C, 90 min with acid catalyst corresponding to 71.51 % and 87.13 % for mass yield and carbon retention rate respectively according to RSM-CCD. The comparison between RSM-CCD and ML in terms of prediction concludes that RSM remains more efficient in terms of planning and optimization. However, ANN is more suitable for modeling and predicting mass yields and carbon retention rates. Hydrochar’s physicochemical properties were evaluated by the use of spectroscopic methods like FTIR, SEM, XRD, and CHNO. To conclude, we studied the performance of HCop in methylene blue adsorption, varying the following parameters: pH, contact time, initial dye concentration, adsorbent dose and temperature. In addition, kinetic and isothermal models were studied to describe the dominant mechanisms in the MB adsorption process. The MB maximal adsorption using HCop obtained at pH 9, with an initial dye concentration of 100 mg. L⁻¹, 40-min contact time, 0.1 g/L adsorbent dose, and a temperature between 25 and 30 °C. In conclusion, these results provide important information on the use of Co-HTC to convert biogenic wastes into high-performance carbon materials for the appropriate removal of organic pollutants. More studies are needed to use the material in other fields of application.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 5","pages":"Article 101920"},"PeriodicalIF":5.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324001157/pdfft?md5=01a75a14fc4645646ced27d92635eb45&pid=1-s2.0-S1319610324001157-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation and optimization of antiscalant substances for enhanced reverse osmosis performance","authors":"Mahmoud A. Ahmed ,&nbsp;Ashraf A. Mohamed","doi":"10.1016/j.jscs.2024.101923","DOIUrl":"10.1016/j.jscs.2024.101923","url":null,"abstract":"<div><p>The advancement of reverse osmosis (RO) technology in water treatment has brought about significant purification benefits. However, the presence of scales poses obstacles to the long-term effectiveness and reliability of RO systems, therefore, the use of antiscalants has emerged as an effective solution. This comprehensive review explores various aspects of scale formations, including their characteristics and prevalence. It delves into detailed understanding of crystal nucleation inhibition, dispersion of crystal growth, threshold inhibition, and inhibition mechanisms, shedding light on the intricate processes involved in successful scale prevention. In addition, this review also explores the realm of antiscalants, uncovering their exceptional potential, mechanisms of action, and game-changing value in RO systems. It takes a thorough evaluation approach to different antiscalant substances, ranging from traditional inhibitors like phosphonates and synthetic polymers to more sustainable and greener inhibitors including biopolymers as promising candidates. The review assesses their efficacy, optimal dosage requirements, and compatibility with varying water pH levels. Moreover, the review highlights the utility of fluorescent-labeled antiscalants to elucidate the mechanisms underlying scale formation and inhibition, revealing the role of “nanodust” particles as primary heterogeneous nucleation centers, and the antiscalants’ role in disrupting the scale formation process. Limitations of current antiscalants and practical challenges, such as antiscalant-induced membrane biofouling, are also highlighted. Furthermore, the review explores options for removing antiscalants from the resulting concentrates. By setting the stage for future antiscalant research, this review offers innovative solutions to overcome existing challenges and achieve higher efficiency in RO systems, emphasizing the important role of synthetic and green polymers as antiscalants.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 5","pages":"Article 101923"},"PeriodicalIF":5.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324001182/pdfft?md5=43753d0e66382ee4b6e0f3ef1ec0570a&pid=1-s2.0-S1319610324001182-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142044305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing photocatalytic degradation under visible light with TiO2/g-C3N4 nanohybrid mechanistic insights","authors":"Fatimah Othman Alqahtani","doi":"10.1016/j.jscs.2024.101918","DOIUrl":"10.1016/j.jscs.2024.101918","url":null,"abstract":"<div><p>In this study, we presents a novel method for bolstering the photocatalytic effectiveness of crystalline titanium dioxide (TiO₂) through the integration of graphitic carbon nitride (g-C₃N₄), creating a series of TiO₂/g-C₃N₄ nanohybrids (TiCN-NHs). Leveraging an economical and scalable pyrolysis technique, we crafted different ratios of these nanohybrids (TiCN-NHs-1, TiCN-NHs-2, TiCN-NHs-3, and TiCN-NHs-4) to optimize their performance in harnessing visible light for photocatalysis. Detailed spectroscopic examinations were performed to dissect the nanohybrids’ structural and morphological nuances, alongside their chemical interactions and states. The primary evaluation of these nanohybrids’ photocatalytic prowess was the degradation of a selected colored organic contaminant under visible light exposure. The TiCN-NHs showcased an unprecedented photocatalytic degradation efficiency, surpassing that of <em>p</em>-TiO₂ and bulk b-g-C₃N₄ by twelvefold and eightfold, respectively, under comparable conditions. This dramatic increase in photocatalytic activity is credited to the harmonious interface between TiO₂ and g-C₃N₄ within the nanohybrids, fostering a diminished bandgap and promoting efficient charge separation. Additionally, photoluminescence and density of state analyses, specifically focusing on valence band spectra under visible light irradiation, further confirmed these findings. The synergistic effects observed in TiCN-NHs not only enhance photocatalytic degradation rates but also spotlight the potential of these nanohybrids in solar energy conversion and environmental cleanup applications, offering a promising avenue for future research in sustainable technologies.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 5","pages":"Article 101918"},"PeriodicalIF":5.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324001133/pdfft?md5=ad8c064a7dde24dddcda6a21976e3867&pid=1-s2.0-S1319610324001133-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141979795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silica supported Schiff-based palladium nanocatalyst for n-alkylation at room temperature","authors":"Shaheen M. Sarkar ,&nbsp;Md. Lutfor Rahman ,&nbsp;Kamrul Hasan ,&nbsp;Md. Maksudur Rahman Khan ,&nbsp;Mohammed Salim Akhter ,&nbsp;Emmet J. O’Reilly","doi":"10.1016/j.jscs.2024.101916","DOIUrl":"10.1016/j.jscs.2024.101916","url":null,"abstract":"<div><p>This works documents a new silica gel-supported nanocatalyst (<strong>Si@NSBPdNPs 3</strong>) with low Pd loadings for <em>n</em>-alkylation reactions at room temperature. Post synthesis characterisation using SEM-EDX and ICP techniques provided a quantitative assessment of palladium species. Additionally, TEM analysis unveiled an average palladium nanoparticle size of 5.87 ± 0.2 nm. In-depth X-ray Photoelectron Spectroscopy (XPS) analysis revealed its predominant composition as Pd(0) complexed to a Schiff base ligand on low cost silica matrix. The nanocatalyst exhibited high efficacy in the catalysis of <em>n</em>-alkylation (Michael addition) reactions with various <em>α,β</em>-unsaturated Michael acceptors, yielding the corresponding <em>n</em>-alkyl products at room temperature with exceptional yields. Notably, the catalyst exhibited good stability and could be easily separated from the reaction mixture. Moreover, the catalyst displayed recyclability potential, maintaining its original catalytic efficacy for up to seven cycles without any discernible loss.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 5","pages":"Article 101916"},"PeriodicalIF":5.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S131961032400111X/pdfft?md5=bd5cdf51d84e0ffe78eb01061f61f36f&pid=1-s2.0-S131961032400111X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141993449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Greenly engineered bimetallic Ag-ZnO nanohybrids for synergistic antibacterial enhancement","authors":"Hayfa Habes Almutairi","doi":"10.1016/j.jscs.2024.101899","DOIUrl":"https://doi.org/10.1016/j.jscs.2024.101899","url":null,"abstract":"<div><p>The escalating issue of infectious agents developing resistance to traditional antibiotics has spurred ongoing research into effective and broad-spectrum antimicrobial solutions. This study focuses on the fabrication of silver-zinc oxide Nanohybrids (A-ZnO-NHs) with varying silver content (1 %, 3 %, 5 %) using a simplified modified sol–gel method, further enhanced by a green synthesis approach utilizing orange peel extract for the generation of silver nanoparticles. The physicochemical characteristics of the A-ZnO-NCs were thoroughly examined. X-ray diffraction analysis verified the presence of Ag nanoparticles within the zinc oxide and scanning electron microscopy revealed the nanoscale silver particles uniformly distributed on the spherical zinc oxide nanoparticles. Transmission electron microscopy indicated that the Ag-ZnO-NCHs ranged in size from 10 to 20 nm. X-ray photoelectron spectroscopy analysis confirmed the formation of strong chemical bonds between the silver and zinc oxide surfaces in the nanohybrids. This study explored into the structural, morphological, and antimicrobial characteristics of the A-ZnO-NHs at different compositions. The bactericidal efficiency of the A-ZnO-NHs was assessed against both gram-positive and gram-negative bacterial strains. The impact of the A-ZnO-NHs on the cellular structure and chemical composition of Staphylococcus aureus (<em>S. aureus</em>) and Escherichia coli (<em>E. coli</em>) was also explored. The findings revealed that the A-ZnO-NHs with 3 % silver content demonstrated higher antimicrobial activity against <em>E. coli</em> and <em>S. aureus</em> compared to other compositions and pure zinc oxide nanoparticles. The antimicrobial activity decreases when the concentration of silver increases because the silver particles agglomerate together, reducing their surface area and lessening their effectiveness as antibacterial agents, despite their potential for various applications.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 4","pages":"Article 101899"},"PeriodicalIF":5.8,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324000942/pdfft?md5=67dba82fc90267dc28ee98d2c69879b7&pid=1-s2.0-S1319610324000942-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141487407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of an aptasensor based on the composite nanomaterial IL-rGO-TEPA/SiO2-AuPt and its high-sensitive detection of cardiac troponin I","authors":"Jiaxin Wang ,&nbsp;Jian Mao ,&nbsp;Qinghua Yan ,&nbsp;Li Yang","doi":"10.1016/j.jscs.2024.101898","DOIUrl":"https://doi.org/10.1016/j.jscs.2024.101898","url":null,"abstract":"<div><p>To accurately diagnose and evaluate the degree of myocardial injury and predict myocardial infarction disease, the rapid and sensitive detection of cardiac troponin I (cTnI) is required. Therefore, a label-less electrochemical aptasensor was prepared for cTnI determination. Ionic liquid 1-hydroxyethy l-3- methyl imidazole four fluorine boric acid salt (IL)-reduced graphene oxide − four ethylene oxidation reduction five amine (rGO-TEPA)/silica (SiO₂)- gold platinum (AuPt) (IL-rGO-TEPA/SiO₂-AuPt) nanocomposites were synthetized as the substrate nanocomposite and were characterized using a series of characterization methods. The performance of the prepared aptasensor was characterized through electrochemical methods. Result displayed that better substrate materials were synthesized, and the prepared electrochemical aptasensor showed excellent electrochemical performance. Under optimal conditions, the electrochemical aptasensor had a salient analytical performance. The electrochemical signals linearly decreased with the logarithm of the cTnI concentration between the 0.5 pg·mL⁻¹ and 1 × 10⁶ pg·mL⁻¹ concentration range (R² value = 0.9955) and the aptasensor had a wide detection range (0.5 ∼ 1 × 10⁶ pg·mL⁻¹) and a low detection limit of 0.4 pg·mL⁻¹. At the same time, the aptasensor had good selectivity, repeatability and stability. Relative standard deviation (RSD) values ranged from 3.45 % ∼ 4.97 % and the recovery rate was 97.5 % ∼ 103 % in human serum samples, the RSD values of the spiked recovery and ELISA method were less than 5 %. This study provides a new theoretical basis and method for the clinical detection of cTnI.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 4","pages":"Article 101898"},"PeriodicalIF":5.8,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324000930/pdfft?md5=6471a16f7b23773a23d8ac564de1b721&pid=1-s2.0-S1319610324000930-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141487406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transition-metal-free synthesis of triarylmethanes via Friedel-Crafts reactions of imidazo[1,2-a]pyridines with chlorohydrocarbon derivatives","authors":"Xinlei Fu ,&nbsp;Longhui Wu ,&nbsp;Xiaohua Guo,&nbsp;Kai Yang,&nbsp;Zhaowen Liu","doi":"10.1016/j.jscs.2024.101883","DOIUrl":"https://doi.org/10.1016/j.jscs.2024.101883","url":null,"abstract":"<div><p>A facile, transition-metal-free, HFIP-promoted method for the synthesis of triarylmethanes through direct Friedel-Crafts reactions of imidazo[1,2-a]pyridines with chlorohydrocarbon derivatives has been described, which allows for efficient synthesis of triarylmethanes containing imidazo[1,2-a]pyridines in good to satisfactory yields at room temperature. This transformation features simple operation, excellent functional group tolerance, and a broad substrate scope.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 4","pages":"Article 101883"},"PeriodicalIF":5.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324000784/pdfft?md5=d6e633af4a44271ba234bb8438ea8ea7&pid=1-s2.0-S1319610324000784-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141239589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photocurrent, electrochemical characteristic and photodegradation of two Ag20 cage isomers co-constructed by thiol and carboxylate/sulfonate and induced by CO32– template","authors":"Wen-Xuan Xie ,&nbsp;Li Li ,&nbsp;Kun Zhou,&nbsp;Yi-Fan Tan,&nbsp;Jing Sun,&nbsp;Guang-Min Liang,&nbsp;Jiu-Yu Ji,&nbsp;Yan-Feng Bi","doi":"10.1016/j.jscs.2024.101885","DOIUrl":"https://doi.org/10.1016/j.jscs.2024.101885","url":null,"abstract":"<div><p>Assembly of AgS<em>^t</em>Bu and PhCOOH ligands with the assistance of soluble silver salt CH₃COOAg/CF₃SO₃Ag in methanol, N, N-dimethylformamide (DMF) and dichloromethane solution, yielded two Ag₂₀ cage isomers co-constructed by thiol and carboxylate/sulfonate ligands encapsulating a CO₃^2– anion template, [(CO₃^2–)@Ag₂₀(S<em>^t</em>Bu)₁₀(PhCOO)₄(CH₃COO)₄(DMF)₄] (<strong>1</strong>) and [(CO₃^2–)@Ag₂₀(S<em>^t</em>Bu)₁₀(PhCOO)₆(CF₃SO₃)₂(DMF)₄]·2DMF (<strong>2</strong>). The CO₃^2– anion template was generated in situ by fixing atmospheric CO₂. The precise structures of <strong>1</strong> and <strong>2</strong> were confirmed by single-crystal X-ray diffractometry (SCXRD). The thermal stability of compounds <strong>1</strong> and <strong>2</strong> was proved by thermogravimetric (TG) analysis, and their solution stability was characterized by nuclear magnetic resonance hydrogen spectroscopy (¹H NMR). The absorption spectra, photocurrent responses, and luminescence of compounds <strong>1</strong> and <strong>2</strong> were investigated. In addition, the photodegradation of methylene blue (MB) and cyclic voltammetry characteristic curves of <strong>1</strong> and <strong>2</strong> were also studied.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 4","pages":"Article 101885"},"PeriodicalIF":5.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324000802/pdfft?md5=090edebdaf5c1ab6c3ce6019122b8b18&pid=1-s2.0-S1319610324000802-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141239587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A switchable zinc-based metal organic framework for the light triggered absorption and release of organic dyes","authors":"Shiye Li ,&nbsp;Yudan Chai ,&nbsp;Jian Zhang ,&nbsp;Jie Wang ,&nbsp;Chao Yang ,&nbsp;Jin Zhang ,&nbsp;Shixing Cheng","doi":"10.1016/j.jscs.2024.101880","DOIUrl":"10.1016/j.jscs.2024.101880","url":null,"abstract":"<div><p>Due to its adjustable pore structure, the metal–organic frameworks (MOFs) have attracted much attention in the treatment of organic dye molecules in wastewater. However, the general tuning of the pore channels of MOFs is mainly by changing the chain length of the organic ligands and metal nodes. This approach not only limits the types of MOFs, but also limits the treatment of a large number of dye methylene blue (MB) and methyl orange (MO) dye molecules in the wastewater. Hence, we synthesized photoresponsive <strong>Zn-AzDC/TPA</strong> MOF as adsorbents to adsorb and release organic dye molecules in a photo-controlled manner. The photoresponsive <strong>Zn-AzDC/TPA</strong> was prepared using a mixed ligand strategy, in which the azobenzene carboxylic acid derivative (AzDC) served as a photoresponsive ligand and terephthalic acid (TPA) served as a non-active ligand in coordination with zinc ion. The optical and structural properties of the synthesized <strong>Zn-AzDC/TPA</strong> was characterized by UV–vis, FT-IR, PXRD, SEM, TEM, TGA, and pore analysis. Interestingly, it was found that the photoresponsive AzDC unit of <strong>Zn-AzDC/TPA</strong> demonstrated reversible <em>trans</em>–<em>cis</em> isomerization under the alternating UV and visible light, resulting in reversible changes in the pore size of the <strong>Zn-AzDC/TPA</strong>. Its photoresponse properties can trapp and release dye molecules under light-driven conditions. This result provides a new direction for the application of photoresponsive MOF and also lays a foundation for the study of diversified optically responsive materials.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 4","pages":"Article 101880"},"PeriodicalIF":5.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324000759/pdfft?md5=ce3cb09945aa94e843939f7d2b75250f&pid=1-s2.0-S1319610324000759-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mildew resistance and antibacterial activity of plywood decorated with ZnO/TiO2 nanoparticle","authors":"Chengfei Wang ,&nbsp;Shahriman Zainal Abidin ,&nbsp;Natrina Mariane P. Toyong ,&nbsp;Wenkai Zhu ,&nbsp;Yingchao Zhang","doi":"10.1016/j.jscs.2024.101877","DOIUrl":"https://doi.org/10.1016/j.jscs.2024.101877","url":null,"abstract":"<div><p>Plywood is widely used in flooring, furniture and other indoor wood products due to its natural advantages. However, due to the rich nutrients and unique properties of plywood, it is easy to harbor mold, which affects the use value of plywood and endangers people’s health. In this paper, ZnO/TiO2 nanoparticles were prepared by a one-pot hydrothermal method, and plywood with anti-mold/anti-bacterial properties was successfully prepared. This study pioneered the novelty and originality of growing inorganic nanocomposites on the surface of plywood to prepare plywood with anti-mold and antimicrobial properties. The prepared samples were characterized by SEM, FTIR, XRD and XPS, and the results showed that ZnO/TiO2 was adsorbed on the surface of plywood by physical adsorption. The results of mold resistance and antimicrobial testing showed that ZnO/TiO2@plywood exhibited excellent performance as the content of ZnO/TiO2 nanoparticles increased. Moreover, the antibacterial rates of ZnO/TiO₂@plywood against <em>staphylococcus aureus</em> and <em>escherichia coli</em> were 96.14% and 93.36%, respectively. The improvement in the anti-mold/anti-bacterial properties of plywood is due to the reaction of ZnO/TiO2 nanoparticles with water or dissolved oxygen in water to form electron-hole pairs, generating chemically active superoxide anion radicals and hydroxyl radicals. These radicals will directly attack the bacterial cells, leading to the degradation of organic matter in the bacterial cells, thus achieving the anti-mold/anti-bacterial effect. Therefore, the novel plywood with anti-mold/anti-bacterial properties prepared in this study will fundamentally improve the intrinsic properties of plywood.</p></div>","PeriodicalId":16974,"journal":{"name":"Journal of Saudi Chemical Society","volume":"28 4","pages":"Article 101877"},"PeriodicalIF":5.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1319610324000723/pdfft?md5=2665e3e227aaa5f1b5198d69f5a02b5e&pid=1-s2.0-S1319610324000723-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141090177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}