文献类型：期刊文献

英文题名：One-pot hydrothermal synthesis of ZnO/RGO/ZnO@Zn sensor for sunset yellow in soft drinks

作者：Wu, Xian[1];Zhang, Xiaojuan[1];Zhao, Chongjun[1];Qian, Xiuzhen[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2018

卷号：179

起止页码：836

外文期刊名：TALANTA

收录：;EI(收录号：20175104551685);WOS:【SCI-EXPANDED(收录号:WOS:000424178000112)】；

基金：We gratefully acknowledge the support by the Shanghai Natural Science Foundation (No. 13ZR1411900), Shanghai Key Laboratory Project (08DZ2230500), Shanghai Leading Academic Discipline Project (B502) and Opening Project of Shanghai Key Laboratory of New Drug Design (No. 17DZ2271000).

语种：英文

外文关键词：ZnO/RGO/ZnO; In-situ hydrothermal growth; Non-enzymatic biosensor; Sunset yellow

摘要：ZnO/RGO/ZnO nanocomposite was in-situ anchored on Zn foil through a simple one-step hydrothermal approach. Based on the redox reaction between graphene oxide (GO) and Zn foil, and the electrostatic attraction between the negative-charged GO and positive-charged zinc ions, three strong interfaces of ZnO/RGO, RGO/ZnO and ZnO/Zn were simultaneously constructed, which led to improved electron and ion transfer. As-prepared ZnO/RGO/ZnO@Zn directly acted as sensor for amperometric detection of sunset yellow without further assembling, which exhibited an ultrahigh sensitivity of 20.25 uA mu M-1 cm(-2), a low limit of detection (3 nM), a wide linear detection ranging from 0.01 to 5 mu M.