生物模板法合成CuO-CeO_(2)复合材料及其电催化降解腐殖酸  

Synthesis of CuO-CeO_(2) composite materials by biological template method and their electrocatalytic degradation of humic acid

作　　者：陈丰[1,2] 李小蝶 任文青 陈志刚[1,2,3] CHEN Feng;LI Xiaodie;REN Wenqing;CHEN Zhigang(Jiangsu Key Laboratory for Environment Functional Materials,SUST,Suzhou 215009,China;School of Materials Science and Engineering,SUST,Suzhou 215009,China;Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment,SUST,Suzhou 215009,China)

机构地区：[1]苏州科技大学江苏省环境功能材料重点实验室,江苏苏州215009 [2]苏州科技大学材料科学与工程学院,江苏苏州215009 [3]苏州科技大学江苏高校水处理技术与材料协同创新中心,江苏苏州215009

出　　处：《苏州科技大学学报(自然科学版)》2025年第1期41-49,共9页Journal of Suzhou University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金项目(51478285);江苏省高等学校基础科学(自然科学)研究重大项目(24KJA430012)。

摘　　要：去除腐殖酸对于保障水体安全至关重要。电催化氧化技术作为一种环境友好型绿色水处理技术,具有操作简单、催化效率稳定、运行成本低等优势。本文通过简单生物模板法合成了CuO-CeO_(2)复合材料催化剂,通过单因素实验确定最佳反应条件,在电压为3 V,极板间距为1 cm,pH为5,初始浓度为10 mg/L,电解质浓度为15 g/L,CeO_(2)和CuO的配比为6∶1时,材料的电催化性能最佳,在30 min时腐殖酸去除率就达到了91.27%,之后70 min几乎维持稳定,溶液中TOC的含量降低了52.68%,进一步证明了污染物大部分分解为水和二氧化碳。The removal of humic acid is essential to ensure water safety.Electrocatalytic oxidation technology,as an environmentally friendly green water treatment method,offers the benefits of straightforward operation,stable catalytic efficiency,and low operating costs.In this study,a CuO-CeO_(2) composite material catalyst was synthesized using a simple biological template approach.The optimal reaction conditions were determined through single-factor experiments:voltage set at 3 V,electrode gap at 1 cm,pH at 5,initial concentration at 10 mg/L,and electrolyte concentration at 15 g/L.When the ratio of CeO_(2) to CuO was 6∶1,the material exhibited its best electrocatalytic performance with a removal rate of 91.27%for humic acid within 30 minutes and remained stable for almost 70 minutes thereafter.The total organic carbon(TOC)content in the solution was a decrease by 52.68%,further confirming that most pollutants were decomposed into water and carbon dioxide.

关 键 词：氧化铈 氧化铜 腐殖酸 电催化氧化 

分 类 号：X52[环境科学与工程—环境工程]