不同形貌Bi_2Ti_2O_7/TiO_2异质结光催化降解抗生素的影响
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- 英文论文题名：Effect of different morphologies Bi_2Ti_2O_7/TiO_2 heterojunction to photocatalytic degradation of tetracycline hydrochloride
- 论文作者：汪琼 ; 王玉萍
- 英文论文作者：Wang qiong ; Wang Yuping ; School of Chemistry and Material Science ; Nanjing Normal University
- 年：2016
- 作者机构：南京师范大学化学与材料科学学院;
- 论文关键词：光催化 ; 异质结 ; 盐酸四环素 ; 去除率 ; 模拟太阳光
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十七分会：光化学
- 语种：中文
- 分类号：X505;O643.3
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十七分会 ; 光化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：304k
- 原文格式：D
- 会议级别：全国
摘要
本文采用溶剂热法通过控制不同溶剂比合成不同形貌的Bi_2Ti_2O_7/TiO_2前驱体。经过煅烧处理后得到Bi_2Ti_2O_7/TiO_2异质结。采用XRD、SEM、BET、Zeta电位等技术对样品进行表征。以盐酸四环素为目标污染物,在金卤灯模拟太阳光下,考察不同形貌催化剂的光催化降解效果。结果表明,不同溶剂比制备的三种异质结(BT-0,BT-5,BT-10)在形貌结构上存在差异。不同结构的抗生素光降解的去除效果不同,在溶液初始浓度为0.1g/L,催化剂加入量为1g/L时,对盐酸四环素(pH=3.6)降解3h后,BT-5与BT-10对其去除率分别达到93.87%、91.90%,而BT-0对其去除率只有66.38%,降解5h后,BT-0,BT-5,BT-10对其去除率分别为,80.26%、99.54%、98.14%。
The heterostructured Bi_2Ti_2O_7/TiO_2 composites with different shapes were synthesized by a simple glycerol-assisted alcoholthermal method.The as-prepared Bi_2Ti_2O_7/ TiO_2 composites were characterized by XRD, SEM, BET and Zeta potential instrument.Use Tetracycline Hydrochloride as target pollutant, Photocatalytic degradation of different morphology catalyst to be investigated. The results showed that different morphology of the catalyst have different degradation effects. Under Metal Halide of 250 W after 3h, the amount of catalyst 1g/L and the initial pH of solution 3.6, the degradation rate of tetracycline hydrochloride solution(0.1g/L) with BT-5 and BT-10 was up to 93.87% and 91.90%,while BT-0's removal only 66.38%. After degradation 5h, BT-0, BT-5, BC-10 for its removal was 80.26%, 99.54%, 98.14% respectively
The heterostructured Bi_2Ti_2O_7/TiO_2 composites with different shapes were synthesized by a simple glycerol-assisted alcoholthermal method.The as-prepared Bi_2Ti_2O_7/ TiO_2 composites were characterized by XRD, SEM, BET and Zeta potential instrument.Use Tetracycline Hydrochloride as target pollutant, Photocatalytic degradation of different morphology catalyst to be investigated. The results showed that different morphology of the catalyst have different degradation effects. Under Metal Halide of 250 W after 3h, the amount of catalyst 1g/L and the initial pH of solution 3.6, the degradation rate of tetracycline hydrochloride solution(0.1g/L) with BT-5 and BT-10 was up to 93.87% and 91.90%,while BT-0's removal only 66.38%. After degradation 5h, BT-0, BT-5, BC-10 for its removal was 80.26%, 99.54%, 98.14% respectively
引文
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[2]Li WH,Guo CS,Su B,et al.,J Chem Technol Biotechnol.2012,87:643-650.
[2]Li WH,Guo CS,Su B,et al.,J Chem Technol Biotechnol.2012,87:643-650.