山东化工2024,Vol.53Issue(1) :15-19.

CoCuOx/碳气凝胶的制备及光催化性能研究

Preparation and Photocatalytic Properties of CoCuOx/Carbon Aerogel

梁慧 朱钰晓 刘同金 李如美 李瑞娟 房锋
山东化工2024,Vol.53Issue(1) :15-19.

CoCuOx/碳气凝胶的制备及光催化性能研究

Preparation and Photocatalytic Properties of CoCuOx/Carbon Aerogel

梁慧 1朱钰晓 1刘同金 1李如美 1李瑞娟 1房锋1
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作者信息

  • 1. 山东省农业科学院 植物保护研究所,山东 济南 250100
  • 折叠

摘要

水体中难降解有机污染物严重威胁人类健康,光催化法因其对有机污染物降解彻底而成为研究热点.采用一步法成功制备CoCuOx/碳气凝胶(CoCuOx/CA),通过X射线衍射(XRD)、扫描电子显微镜(SEM)、热重分析(TGA/DTG)等手段对光催化剂的结构、形貌进行了表征分析,并研究了其光催化性能.考察了不同反应体系、降解时间、循环使用次数等因素对CoCuOx/碳气凝胶催化性能的影响.结果表明,在模拟太阳光下,CoCuOx/碳气凝胶能够快速活化H2 O2,120 min内对有机污染物亚甲基蓝、刚果红和苯酚的降解效率分别为 95.8%,95.13%,83.85%;3 次循环使用后,CoCuOx/碳气凝胶的稳定性良好,对亚甲基蓝的去除率仍超过 95%.自由基猝灭实验证明·OH是反应体系中的主要活性物种.

Abstract

Refractory organic pollutants in water would pose a potential threat to human health.Photocatalysis has attracted public attention due to its outstanding capacity for organic pollutants degradation.CoCuOx/carbon aerogel(CoCuOx/CA)was successfully prepared by one-step method,and the structure and morphology of the photocatalyst were characterized by XRD,SEM,and TGA/DTG.The effects of different reaction systems,degradation time and recycling times on the catalytic performance of CoCuOx/CA were investigated,and the results were observed that CoCuOx/CA shows high performance in H2 O2 activation for decontamination in water under simulated sunlight.Within 120 min,the degradation efficiency of methylene blue(MB),congo red(CR),phenol was 95.8%,95.13%and 83.85%,respectively.Moreover,the recycling experiment and XRD suggested the stability of CoCuOx/CA,and the removal rate of MB was still more than 95%after three times of recycling.Radical quenching experiment confirmed the existence of·OH in the reaction system,which played the most significant role in decomposing organic pollutants.

关键词

光催化/碳气凝胶/有机污染物/催化机理

Key words

photocatalysis/carbon aerogel/organic pollutants/catalytic mechanism

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基金项目

山东省农业科学院农业科技创新工程项目(CXGC2023F04)

山东省农业科学院农业科技创新工程项目(CXGC2023D01)

出版年

2024
山东化工
山东省化工研究院 山东省化工信息中心

山东化工

影响因子:0.249
ISSN:1008-021X
参考文献量15
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