文献类型：期刊文献

英文题名：Co(OH)2/TiO2 heterojunction for selective SERS detection of anionic dyes

作者：Zhang, Xiangxiang[1,2];Zhou, Man[1,2];Zhong, Yang[1,2];Zhang, Letian[1,2];Kang, Jianjian[1,2];Wang, Lingzhi[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat & Inst Fine Chem, Shanghai Engn Res Ctr Multimedia Environm Catalys, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, Shanghai Engn Res Ctr Multimedia Environm Catalys, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：48

期号：8

起止页码：3347

外文期刊名：RESEARCH ON CHEMICAL INTERMEDIATES

收录：;EI(收录号：20222512262126);WOS:【SCI-EXPANDED(收录号:WOS:000811448300003)】；

基金：This study was supported by National Key R&D Program of China (2021YFC2103501), National Natural Science Foundation of China (No. 21972040, 21822603, and 21773062), Shanghai Municipal Science and Technology (No. 21ZR1417900, 2018SHZDZX03, 17520711500, and 20DZ2250400), Innovation Program of Shanghai Municipal Education Commission, the Program of Introducing Talents of Discipline to Universities (No. B16017 and B20031), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：TiO2; Co(OH)(2); Surface-enhanced Raman scattering; In situ monitoring

摘要：Co(OH)(2) modified TiO2 (Co(OH)(2)/TiO2) was fabricated by a simple precipitation method and applied as a surface enhanced Raman scattering (SERS) substrate. Using triphenylmethane dye acid blue 83 as the analyte, the SERS substrate showed high sensitivity with a detection limit of 1 x 10(-7) M and high signal reproducibility with a relative standard deviation of 8.9%. Moreover, the substrate can also be used to in situ monitor the catalytic degradation of Acid blue 83. In addition, compared with cationic triphenylmethane dye, the Co(OH)(2)/TiO2 substrate presented stronger SERS activity towards anionic counterparts. The easy preparation and high sensitivity and selectivity towards anionic dyes of Co(OH)(2)/TiO2 provides a robust alternative for promoting the practical application of semiconductor-based SERS substrate in selective detection.