Ag@AgCl quantum dots embedded on Sn3O4 nanosheets towards synergistic 3D flower-like heterostructured microspheres for efficient visible-light photocatalysis | |
Han, Yuqi1,3; Wei, Miaomiao1; Qu, Shuangyan1; Zhong, Ming2; Han, Lijuan1; Yang, Haidong1; Liu, Yang1; Su, Bitao1; Lei, Ziqiang1 | |
刊名 | Ceramics International |
2020-10-15 | |
卷号 | 46期号:15页码:24060-24070 |
关键词 | Aromatic compounds Carrier mobility Chlorine compounds Electron spin resonance spectroscopy Heterojunctions Magnetic moments Microspheres Morphology Nanocrystals Nanosheets Photocatalytic activity Plasmonic nanoparticles Reaction intermediates Semiconducting tin compounds Semiconductor quantum dots Silver halides Silver nanoparticles Solar energy Surface plasmon resonance Surface plasmons Tin compounds Composite photocatalysts Flower-like structures Oil water interfaces Photoelectrochemical properties Photoinduced charge carriers Surface plasmonic resonances Tetracycline hydrochloride Visible-light photocatalysis |
ISSN号 | 02728842 |
DOI | 10.1016/j.ceramint.2020.06.184 |
英文摘要 | Taking advantage of the oil-water interface, we introduced Ag@AgCl quantum dots (QDs) onto 2D Sn3O4 nanosheets to fabricate a composite photocatalyst with a 3D flower-like structure (denoted as Ag@AgCl/Sn3O4). Using the degradation of tetracycline hydrochloride (TC-HCl) and methylene blue (MB) as the examples, the as-prepared Ag@AgCl/Sn3O4 composite with Ag@AgCl weight loading of 1% indicated 9.6 and 7.88 times higher photocatalytic activity than the Sn3O4 nanosheets. Within both degradation reactions, hydroxyl radicals (•OH) and superoxide radicals (•O2−) were identified as the critical oxidation intermediates based on radical trapping and electron spin resonance (ESR) experiments. The unique morphology and photoelectrochemical properties of the as-prepared composites suggested the introduced Ag@AgCl QDs cooperated with the Sn3O4 semiconductor to enhance the utilization of solar energy. Overall, the established heterojunction helped to reduce the transfer barrier of the photoinduced charge carriers, wherein the surface plasmonic resonance (SPR) of Ag nanoparticles was believed to take the main responsibility. The present work combines the Ag@AgCl-QDs and flower-like 3D Sn3O4 microspheres for the first time to achieve an impressive degrading rate of TC-HCl and MB at the Ag@AgCl weight loading as low as 1%. © 2020 Elsevier Ltd and Techna Group S.r.l. |
语种 | 英语 |
出版者 | Elsevier Ltd |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/115690] |
专题 | 省部共建有色金属先进加工与再利用国家重点实验室 |
作者单位 | 1.Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, No. 967 Anning East Road, Lanzhou; 730070, China; 2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China 3.College of Chemistry and Chemical Engineering, He Xi University, No.846 North Circle Road, Zhangye; Gansu; 734000, China; |
推荐引用方式 GB/T 7714 | Han, Yuqi,Wei, Miaomiao,Qu, Shuangyan,et al. Ag@AgCl quantum dots embedded on Sn3O4 nanosheets towards synergistic 3D flower-like heterostructured microspheres for efficient visible-light photocatalysis[J]. Ceramics International,2020,46(15):24060-24070. |
APA | Han, Yuqi.,Wei, Miaomiao.,Qu, Shuangyan.,Zhong, Ming.,Han, Lijuan.,...&Lei, Ziqiang.(2020).Ag@AgCl quantum dots embedded on Sn3O4 nanosheets towards synergistic 3D flower-like heterostructured microspheres for efficient visible-light photocatalysis.Ceramics International,46(15),24060-24070. |
MLA | Han, Yuqi,et al."Ag@AgCl quantum dots embedded on Sn3O4 nanosheets towards synergistic 3D flower-like heterostructured microspheres for efficient visible-light photocatalysis".Ceramics International 46.15(2020):24060-24070. |
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