Construction of piezoelectric BaTiO_(3)/MoS_(2) heterojunction for boosting piezo-activation of peroxymonosulfate

作     者：Yanxi Chen Shenyu Lan Mingshan Zhu Yanxi Chen;Shenyu Lan;Mingshan Zhu

作者机构：Guangdong Key Laboratory of Environmental Pollution and HealthSchool of EnvironmentJinan UniversityGuangzhou 511443China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第6期

页      面：2052-2056页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by Guangdong Basic and Applied Basic Research Foundation,China(No.2020B1515020038) the Pearl River Talent Recruitment Program of Guangdong Province(No.2019QN01L148),China 

主　　题：Piezoelectricity Peroxymonosulfate BaTiO_(3)/MoS_(2)Heterojunction Ornidazole degradation 

摘      要：The rapid recombination of charge carriers in piezoelectric materials has always been the problem that limits their piezoelectric performance for removal of organic pollutants in ***,we construct a piezoelectric Ba TiO_(3)/MoS_(2)(BTO/MS)that follows a type II heterojunction charge transfer system to inhibit the recombination of electron-hole(e^(-)-h^(+))pairs,which is beneficial to the activation of peroxymonosulfate(PMS)for the removal of antibiotic ornidazole(ORZ)*** optimal ratio of BTO/MS for ORZ degradation under the piezo/PMS process is 13.9,3.6,62.1 and 2.0 times higher than that of the BTO/piezo,MS/piezo,(BTO/MS)/PMS and(BTO/MS)/piezo processes,*** high efficiency charge separation in the piezoelectric heterojunction of BTO/MS promotes the activation of PMS,resulting in the synergy of pizeocatalysis and PMS oxidation during the process of ORZ *** study provides an idea for enhancing piezo-activation of PMS by constructing heterojunctions in piezoelectric materials.