摘要
光催化方法降解选矿废水中黄药是一种环境友好型的选矿废水处理工艺,具有操作简单方便、适用范围广、反应条件温和、无二次污染等优点。本工作以黄药为光催化降解对象,综述了近年来相关催化剂的研究进展,主要介绍了光催化剂的研究概况,根据光催化剂材料的差异及其改性方式的不同分类进行说明,其次基于影响光催化降解率的因素总结提出了改善方法,同时对光催化降解黄药的催化剂的设计及工艺开发进行了展望。
Degrading the residual xanthate efficiently,environmentally,and economically in the mineral processing wastewater is a major problem needing to be solved urgently in the process of building a green mine.Photocatalytic degradation of xanthate in flotation wastewater is an environmentally friendly wastewater treatment process.It has many advantages,such as simple and convenient operation,wide application range,mild reaction conditions,free secondary pollution,etc.This work focuses on the application of photocatalytic degradation methods and reviews the research progress of photocatalysts of xanthate in recent years.It mainly introduces the research overview of photocatalysts according to the different classifications of photo-catalytic materials and their modification methods,and then explores the reaction mechanism and related influencing factors of photocatalytic degradation of xanthate.Moreover,improvement methods based on the factors affecting the degradation rate of photocatalysts are proposed.In the end,the design and process development of catalysts for photocatalytic degradation of xanthate were prospected.The photocatalytic materials currently used in the degradation of xanthate are mostly derived from metal semiconductors,including titanium,bismuth,zinc,copper,tungsten,iron-based compounds,and their modified substances,as well as non-metal semiconductor g-C_(3)N_(4) and HAP-based photocatalyst.The ultimate goal of studying photocatalytic technology is to treat pollutants efficiently and environmentally.Therefore,how to improve the degradation efficiency is the core issue of the study.The existing literature mainly uses degradation conditions and photocatalysts to determine the factors affecting degradation efficiency and proposes targeted improvements.In addition,to make up for the shortcomings of a single photocatalyst,a combined process will be adopted to maximize the photocatalytic degradation efficiency.
作者
梁锐
李明阳
高翔鹏
于先坤
童雄
龙红明
Rui LIANG;Mingyang LI;Xiangpeng GAO;Xiankun YU;Xiong TONG;Hongming LONG(School of Metallurgical Engineering,Anhui University of Technology,Ma'anshan,Anhui 243032,China;Key Laboratory of Metallurgical Emission Reduction&Resources Recycling,Ministry of Education,Anhui University of Technology,Ma'anshan,Anhui 243032,China;Faculty of Land and Resources Engineering,Kunming University of Science and Technology,Kunming,Yunnan 650093,China;National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources,Ma'anshan,Anhui 243000,China)
出处
《过程工程学报》
CAS
CSCD
北大核心
2022年第1期1-13,共13页
The Chinese Journal of Process Engineering
基金
国家自然科学基金资助项目(编号:51904001)
安徽省自然科学基金青年项目(编号:2008085QE223)
博士后科学基金(编号:2020M673590XB)
安徽省重点研究和开发计划项目(编号:201904a07020044,201904a07020054)
冶金减排与资源综合利用教育部重点实验室(安徽工业大学)开放基金(编号:JKF20-05)。
关键词
光催化
黄药
选矿废水
降解
改性
photocatalysts
xanthate
mineral processing wastewater
degradation
modification
作者简介
梁锐(1999-),男,安徽省淮南市人,资源循环科学与工程专业,E-mail:1484301077@qq.com;通讯联系人:李明阳,E-mail:my.l@outlook.com.
