BaTiO_(3)优化制备及压电催化性能分析的综合实验设计  

Integrated Experiment Design for Optimized Preparation and Piezocatalysis Performance Analysis of BaTiO_(3)

作　　者：于玲 白航 陈瑜 YU Ling;BAI Hang;CHEN Yu(Analysis and Test Center,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]广东工业大学分析测试中心,广州510006

出　　处：《实验室研究与探索》2024年第3期28-31,共4页Research and Exploration In Laboratory

基　　金：广东省基础与应用基础研究基金项目(2021A1515110742)。

摘　　要：为了实现前沿压电催化水污染控制技术、大型仪器分析技术与实践操作能力培养的有机结合,设计了一个综合水污染控制工程实验——BaTiO_(3)优化制备及压电催化性能分析。通过对BaTiO_(3)进行不同时间的热处理,有效优化BaTiO_(3)压电催化降解染料性能。利用电子顺磁共振波谱仪(ESR)分析降解过程中自由基的生成,并借助猝灭实验明确不同自由基在染料降解过程中的作用。结果表明,对BaTiO_(3)进行2 h热处理可有效提高其压电催化降解罗丹明B(RhB)染料的性能。ESR检测分析反应体系能产生羟基自由基、单线态氧和超氧自由基,而猝灭实验结果表明羟基自由基在染料降解过程中起主导作用。In order to organically combine the latest water treatment technique,large-scale instrument analysis and operation capability cultivation,a novel integrated experiment for the optimized preparation and piezocatalysis performance analysis of BaTiO_(3) is systematically designed.The piezocatalytic performance of BaTiO_(3) nanomaterial on the dye degradation is effectively optimized by heat treatment.The generation of free radicals during the degradation process is analyzed by electron spin resonance(ESR)technique,and the role of different radicals in the dye degradation is confirmed by quenching experiment.The results show that 2 hours heat treatment of BaTiO_(3) can effectively improve the performance of the piezoelectric catalytic degradation of RhB dyes.The hydroxyl radical,singlet oxygen and superoxide radical are detected by ESR during the degradation process.The quenching experiments results show that hydroxyl radical plays a leading role in the process of dye degradation.

关 键 词：压电催化 水污染控制实验 综合实验设计 

分 类 号：X522[环境科学与工程—环境工程]