文献类型：期刊文献

英文题名：Design and preparation of easily recycled Ag2WO4@ZnO@Fe3O4 ternary nanocomposites and their highly efficient degradation of antibiotics

作者：Shen, Juan[1];Lu, Yi[1];Liu, Jin-Ku[1];Yang, Xiao-Hong[2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]Chizhou Univ, Dept Chem, Chizhou 247000, Peoples R China

年份：2016

卷号：51

期号：16

起止页码：7793

外文期刊名：JOURNAL OF MATERIALS SCIENCE

收录：;EI(收录号：20162202432248);WOS:【SCI-EXPANDED(收录号:WOS:000378542300036)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant 21341007), Fundamental Research Funds for the Central Universities (Grant 222201313005), and State Key Laboratory of Pollution Control and Resource Reuse Foundation (Grant 13019).

语种：英文

外文关键词：Crystal structure - Silver compounds - Recycling - Zinc oxide - Antibiotics - II-VI semiconductors - Nanocomposites - Tungsten compounds - Conduction bands

摘要：The Ag2WO4@ZnO@Fe3O4 ternary nanocomposites with high photodegradation activity were synthesized. Compared with Ag2WO4 and ZnO crystals, the ternary nanocomposites could improve the rate of degrading antibiotics to 152.00 and 143.00 %, respectively. Noticeably, the ternary nanocomposites completely degraded the TH within 1.75 h under sunlight irradiation, which paved a new way for its practical application. The matching of energy-band structure between Ag2WO4 and ZnO crystals induced an efficient photogenerated electron transfer from the conduction band of ZnO to the conduction band of Ag2WO4, leading to valid separation and transfer of photogenerated charge carrier, and the subsequent promotion of photocatalytic activity. Furthermore, the introduction of Fe3O4 particle not only realized the recycling of catalyst but also enhanced the utilization rate of visible light of Ag2WO4@ZnO@Fe3O4 ternary nanocomposites.