碘掺杂MnO_(2)催化剂的制备及其活化过一硫酸盐降解四环素的研究  

Preparation of Iodine Doped MnO_(2) Catalyst and Its Application for Tetracycline Degradation via Peroxymonosulfate Activation

作　　者：齐岳堃 李祥 何滔 杨春平 QI Yuekun;LI Xiang;HE Tao;YANG Chunping(College of Environmental Science and Engineering,Guangdong University of Petrochemical Technology,Maoming 525000,China)

机构地区：[1]广东石油化工学院环境科学与工程学院,广东茂名525000

出　　处：《广东石油化工学院学报》2025年第1期66-70,共5页Journal of Guangdong University of Petrochemical Technology

基　　金：国家自然科学基金项目(52270064);广东省普通高校创新团队项目(2021KCXTD043);广东省大学生“攀登计划”科技创新战略专项资金重点项目;广东石油化工学院大学生创新创业训练计划项目(24A033,24B117)。

摘　　要：本研究以碘化铵作为碘来源,将其与硫酸锰一水合物、过硫酸铵以一定比例混合并均匀研磨后,改变煅烧温度制备了不同碘掺杂锰氧化物催化剂(I-MnO_(2)-1,I-MnO_(2)-2和I-Mn_(2)O_(3)),并用于活化过一硫酸盐(PMS)降解四环素。结果表明,I-MnO_(2)-1催化剂活化PMS降解四环素的效果最好(86.9%)。在一定范围内,随着I-MnO_(2)-1催化剂投加量或PMS浓度的增加,四环素的降解效率也相应提升,最优条件分别为100 mg/L催化剂与1 mmol/L PMS。本研究为高效废水处理类芬顿催化剂的合理设计提供了一种新思路。In this study,ammonium iodide was used as the iodine source,mixed with manganese sulfate monohydrate and ammonium persulfate in a specific ratio,and uniformly ground.By varying the calcination temperature,different iodine-doped manganese oxide catalysts(I-MnO_(2)-1,I-MnO_(2)-2,and I-Mn2O3)were prepared and applied to activate peroxymonosulfate(PMS)for tetracycline degradation.The results showed that the I-MnO_(2)-1 catalyst exhibited the best performance in activating PMS for tetracycline degradation(86.9%).Within a certain range,the degradation efficiency of tetracycline increased with the dosage of the I-MnO_(2)-1 catalyst or the concentration of PMS,with the optimal conditions being 100 mg/L of catalyst and 1 mM of PMS.This study provides a novel strategy for the rational design of highly efficient Fenton-like catalysts for wastewater treatment.

关 键 词：二氧化锰 碘掺杂 过一硫酸盐 降解 四环素 

分 类 号：X52[环境科学与工程—环境工程]