光辅助氧化铜催化单过硫酸盐去除水中腐殖酸研究  

The removal of humic acid by persulfate catalyzed by light-assisted copper oxide particles

作　　者：刘秉涛 程雨 连保帅 马攀峰 LIU Bingtao;CHENG Yu;LIAN Baoshuai;MA Panfeng(School of Environmental and Municipal Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,Henan,China)

机构地区：[1]华北水利水电大学环境与市政工程学院,河南郑州450046

出　　处：《化学研究》2025年第2期119-126,共8页Chemical Research

基　　金：河南省科技攻关项目(222102320291)。

摘　　要：腐殖酸(HA)作为一种难去除的有机污染物,是水处理技术领域的研究热点。通过在氧化铜制备过程中添加结构引导剂柠檬酸钠,制备出了一种颗粒尺寸小、比表面积高、活性位点多的富含氧空位氧化铜(CuO-S)微米材料。借助紫外光,构建出了光辅助过硫酸盐的多相催化活化体系。结果显示,在UV/CuO-S/PMS耦合体系作用下,对HA有明显的去除效果。同时考察了PMS投加量、CuO-S投加量、UV光强度和初始pH等因素对HA去除的影响;优化工艺后,经过40 min的反应,HA的去除率为97.13%。通过测定紫外吸光度、总有机碳含量、特定波长下吸光度比值和三维荧光光谱等参数,进行了验证。Humic acid,as an organic pollutant difficult to degrade,has always been a research focus in the field of water pollution control.A small particle size,high specific surface area,rich active sites,and oxygen vacancy rich copper oxide(CuO-S)material was prepared by adding a structure guiding agent during the preparation process of copper oxide.A multiphase catalytic activation system with photo assisted persulfate was constructed for the degradation of humic acid.The results show that the degradation efficiency of HA is optimal in the UV/CuO-S/PMS three-phase system.At the same time,the effects of PMS dosage,CuO-S dosage,UV light intensity,and initial pH on the degradation of HA were investigated.Under optimal conditions,after 40 min of reaction,the degradation rate of HA is 97.13%.The degradation and mineralization mechanisms of HA were analyzed by measuring parameters such as UV absorbance,total organic carbon content,absorbance ratio at specific wavelengths,and three-dimensional fluorescence spectroscopy.

关 键 词：紫外光 氧化铜 单过硫酸盐 腐殖酸 氧化去除 

分 类 号：X703.1[环境科学与工程—环境工程]