Two-dimensional TiO2 (001) nanosheets as an effective photo-assisted recyclable sensor for the electrochemical detection of bisphenol A |
| |
| Institution: | 1. School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, China;2. School of Environment, Jinan University, Guangzhou 510632, China;3. Department of Physics Science and Technology, Kunming University, Kunming 650214, China;4. Yunnan Engineering Technology Research Center for Plastic Films, Kunming University, Kunming 650214, China;1. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China;2. School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China;3. Department of Chemistry, Hunan University of Science and Technology, Xiangtan 411201, China;1. School of Environment, Jinan University, Guangzhou 510632, China;2. School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou 510006, China;3. Department of Chemistry, University of California, Riverside, CA 92521, United States;1. School of Environment, Jinan University, Guangzhou 510632, China;2. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;1. Instituto Científico e Tecnológico, Universidade Brasil, Rua Carolina Fonseca 235, 08230-030 São Paulo, SP, Brazil;2. Departamento de Química Geral e Inorgânica, Universidade Federal da Bahia, Rua Barão de Jeremoabo 147, 40170-115 Salvador, BA, Brazil |
| |
| Abstract: | Electrochemical detection is an efficient method for the detection of Bisphenol A (BPA). Herein, a sensitive photo-electrochemical sensor based on two-dimensional (2D) TiO2 (001) nanosheets was fabricated and then used for BPA electrochemical detection. Upon light irradiation, the 2D TiO2 (001) nanosheets electrode provided a lower detection limit of BPA detection compared with an ambient electrochemical determination. The low detection limit is ∼5.37 nmol/L (S/N = 3). Furthermore, profiting from the photoelectric characteristics, the 2D TiO2 (001) nanosheets electrode exhibits a nice regeneration property. After 45 min of light irradiation, the electrochemical signal was regenerated from 14.7% to 82.9% of the original signal at the 6th cycle. This is attributed to the non-selective  OH mediation produced by the 2D TiO2 (001) nanosheets mineralizing anodic polymeric products and resuming surface reactive sites. This investigation indicates that photo-assistance is an efficient method to improve the electrochemical sensor for detecting BPA in water environments. |
| |
| Keywords: | Bisphenol A Electrochemical detection Recyclable Photo-assisted |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
