{"title":"Studies on Photocatalytic Degradation for Organic Pollutants by TiO2/Au Composite and its Antibacterial Properties","authors":"Qijie Xu, Zhun Liu","doi":"10.1134/S0040579523330114","DOIUrl":null,"url":null,"abstract":"<p>TiO<sub>2</sub>/Au had been prepared readily from tetrabutyl titanate and chloroauric acid by in situ solvothermal method. SEM, XRD, UV-vis, FTIR, etc were used for characterizing the morphology, crystal structure, and optical performance of TiO<sub>2</sub> and TiO<sub>2</sub>/Au. The photocatalytic degradation performance on methyl orange and antibacterial properties against <i>Escherichia coli</i> of TiO<sub>2</sub> and TiO<sub>2</sub>/Au were studied. The results showed that the TiO<sub>2</sub>/Au both possessed superior photocatalytic properties under simulated or nature sunlight. The photocatalytic degradation rate of TiO<sub>2</sub>/Au on methyl orange was up to 91.57% that was obviously better than TiO<sub>2</sub> (65.13%). Moreover, TiO<sub>2</sub> and TiO<sub>2</sub>/Au had significant antibacterial properties against <i>Escherichia coli</i>, and the inhibition rate was up to 99.89%. The activity of TiO<sub>2</sub> and TiO<sub>2</sub>/Au was tested by ESR and H<sub>2</sub>-TPR for analyzing the mechanism of the improvement of the photocatalytic activity and antibacterial properties.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Theoretical Foundations of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0040579523330114","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
TiO2/Au had been prepared readily from tetrabutyl titanate and chloroauric acid by in situ solvothermal method. SEM, XRD, UV-vis, FTIR, etc were used for characterizing the morphology, crystal structure, and optical performance of TiO2 and TiO2/Au. The photocatalytic degradation performance on methyl orange and antibacterial properties against Escherichia coli of TiO2 and TiO2/Au were studied. The results showed that the TiO2/Au both possessed superior photocatalytic properties under simulated or nature sunlight. The photocatalytic degradation rate of TiO2/Au on methyl orange was up to 91.57% that was obviously better than TiO2 (65.13%). Moreover, TiO2 and TiO2/Au had significant antibacterial properties against Escherichia coli, and the inhibition rate was up to 99.89%. The activity of TiO2 and TiO2/Au was tested by ESR and H2-TPR for analyzing the mechanism of the improvement of the photocatalytic activity and antibacterial properties.
期刊介绍：
Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.
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