Meiyan Zhu1, Xiaotong Dong1, Ming Li1, Liangbin Jia1, Ye Ma1, Minggang Zhao2, Hongzhi Cui1. 1. Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China. 2. Department of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China. Electronic address: zhaomg@ouc.edu.cn.
Abstract
Detection of pollutants in seawater faces a great challenge of strong interference, and the facile detection method is lacked. The CoMn2O4/β-MnO2 p-n junction oxidase mimetics were successfully prepared for colorimetric detection of hydroquinone in seawater. The catalysis ability was enhanced significantly by the photo-induced p-n junction interface effect. It not only promoted the formation of H2O2 by suppressing the recombination of photon-generated carriers, but also provided the driving force for electron transport. The colorimetric detection of hydroquinone was achieved by fading and exhibited good adaptability in seawater. The obtained good recovery rate (97.23%-101.37%) in seawater makes it an inspiring method for practical application. The photo-induced p-n junction interface effect provides an opportunity for developing the application of colorimetric sensing in seawater detection.
Detection of pollutants in seawater faces a great challenge of strong interference, and the facile detection method is lacked. The CoMn2O4/β-MnO2 p-n junction oxidase mimetics were successfully prepn>ared for colorimetric detection of n>an class="Chemical">hydroquinone in seawater. The catalysis ability was enhanced significantly by the photo-induced p-n junction interface effect. It not only promoted the formation of H2O2 by suppressing the recombination of photon-generated carriers, but also provided the driving force for electron transport. The colorimetric detection of hydroquinone was achieved by fading and exhibited good adaptability in seawater. The obtained good recovery rate (97.23%-101.37%) in seawater makes it an inspiring method for practical application. The photo-induced p-n junction interface effect provides an opportunity for developing the application of colorimetric sensing in seawater detection.