Ti掺杂BiOCl纳米片的制备及其压电光催化性能研究  

Preparation of Ti-doped BiOCl nanosheets and its piezoelectric photocatalytic performance

作　　者：刘丽华 钟山 张漓杉 刘保江[2] LIU Lihua;ZHONG Shan;ZHANG Lishan;LIU Baojiang(School of Life and Environmental Sciences,Guilin University of Electronic Technology,Guilin 541004,China;College of Chemistry and Chemical Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]桂林电子科技大学生命与环境科学学院,广西桂林541004 [2]东华大学化学与化工学院,上海201620

出　　处：《工业水处理》2023年第5期101-106,共6页Industrial Water Treatment

基　　金：广西创新驱动发展专项(AA17204076)。

摘　　要：采用一步水热法制备了Ti掺杂的BiOCl纳米片,并利用XRD、SEM和PFM以及其他分析测试技术对所制备催化剂的晶体结构和形貌进行测试。以四环素(TC)为目标污染物,在模拟太阳光和超声作用下,研究了Ti-BiOCl的压电光催化性能。结果表明,Ti-BiOCl材料由厚度为25~250 nm的纳米片组成,具有良好的晶体结构和较高的压电响应能力。在光(300 W)和超声(45 kHz,100 W)协同作用下,Ti-BiOCl在20 min内可以去除94.79%的TC。室温下一级反应速率常数达0.168 min-1,显著优于单独光催化或单独压电催化过程。The Ti doped BiOCl nanosheets were prepared by a one-step hydrothermal method.XRD,SEM,PFM and other analytical techniques were used to characterize the crystal structure and morphology of the prepared sample.With tetracycline(TC)as the target pollutant,the piezoelectric photocatalytic performance of Ti-BiOCl was studied under simulated sunlight and ultrasound.The results showed that BiOCl nanosheets exhibited roselike sheet with a thickness of about 25-250 nm and had good crystal structure and high piezoelectric response ability.With the action of light(300 W)and ultrasonic(100 W,45 kHz),the removal rate of TC by Ti-BiOCl reached 94.67%within 20 min.The first-order reaction rate at the room temperature was 0.168 min^(-1),which was significantly better than photocatalytic or piezoelectric catalytic processes alone.

关 键 词：Ti-BiOCl纳米片 压电光催化 四环素 

分 类 号：X703.1[环境科学与工程—环境工程]