材料科学
罗丹明6G
光催化
罗丹明B
拉曼光谱
纳米管
纳米技术
化学工程
基质(水族馆)
吸附
沉积(地质)
分子
污染物
催化作用
碳纳米管
有机化学
化学
工程类
地质学
古生物学
物理
光学
海洋学
生物
沉积物
作者
Xuanhua Li,Guangyu Chen,Liangbao Yang,Zhen Jin,Jinhuai Liu
标识
DOI:10.1002/adfm.201000792
摘要
Abstract A multifunctional Au‐coated TiO 2 nanotube array is made via synthesis of a TiO 2 nanotube array through a ZnO template, followed by deposition of Au particles onto the TiO 2 surface using photocatalytic deposition and a hydrothermal method, respectively. Such arrays exhibit superior detection sensitivity with high reproducibility and stability. In addition, due to possessing stable catalytic properties, the arrays can clean themselves by photocatalytic degradation of target molecules adsorbed to the substrate under irradiation with UV light into inorganic small molecules using surface‐enhanced Raman spectroscopy (SERS) detection, so that recycling can be achieved. Finally, by detection of Rhodamine 6G (R6G) dye, herbicide 4‐chlorophenol (4‐CP), persistent organic pollutant (POP) dichlorophenoxyacetic acid (2,4‐D), and organophosphate pesticide methyl‐parathion (MP), the unique recyclable properties indicate a new route in eliminating the single‐use problem of traditional SERS substrates and show promising applications for detecting other organic pollutants.
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