光催化降解材料制备及其在水污染防治中的应用
Preparation of photocatalytic degradation materials and their application in water pollution prevention and control
卢李桃1
作者信息
- 1. 阿坝藏族羌族自治州九寨沟环境监测站,四川阿坝 623400
- 折叠
摘要
基于传统光催化降解材料对四环素(TCH)降解效果不佳的问题,提出一种新型光催化剂的制备,并以该光催化剂为原料,与过二硫酸盐(PDS)共同构建光芬顿体系用于TCH的降解,并对其降解效果进行研究.实验结果表明,在PDS投加量为0.06g·L-1、光催化剂投加量为0.6g·L-1、TCH废液初始浓度为15mg·L-1、体系pH值为5的条件下,光芬顿体系对TCH的降解效果最好.此时,光芬顿体系在10min左右对TCH的去除率就可达80％,40min时对TCH的去除率则可达100％.经过5次重复使用后,对TCH去除率仍超过90％,表现出良好的重复性和稳定性.
Abstract
In response to the problem of poor degradation effect of traditional photocatalytic degradation materials on tetracycline(TCH),a new type of photocatalyst is proposed.The photocatalyst is used as the raw material,and a photo Fenton system is constructed together with peroxydisulfate(PDS)for TCH degradation,and its degradation effect is studied.The experimental results show that under the conditions of 0.06g·L-1 PDS dosage,0.6g·L-1 photocatalyst dosage,15mg·L-1initial concentration of TCH wastewater,and a pH value of 5,the photocatalytic Fenton system has the best degradation effect on TCH.At this point,the removal rate of TCH by the light Fenton system can reach 80％in about 10 minutes,and the removal rate of TCH can reach 100％in 40 minutes.After 5 repeated uses,the TCH removal rate still exceeds 90％,demonstrating good repeatability and stability.
关键词
光催化剂/光芬顿体系/四环素去除/抗生素废水Key words
photocatalyst/light Fenton system/tetracycline removal/antibiotic wastewater引用本文复制引用
出版年
2024
NETL
NSTL
万方数据