文献类型：期刊文献

英文题名：Catalytic degradation of "trinitrogen" by Fe-Ce-SiO2/TiO2 aerogel

作者：Li, Jie[1];Yang, Yuxiang[1,2];Han, Zhiyong[3];Huang, Yan[1];Yuan, Hongming[4];Ni, Chaoying[2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA;[3]Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Peoples R China;[4]Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

年份：2023

卷号：30

期号：17

起止页码：49577

外文期刊名：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH

收录：;EI(收录号：20242616326173);WOS:【SCI-EXPANDED(收录号:WOS:000933315000008)】；

基金：This work was supported by the National Natural Science Foundation of China (20577010, 20971043), the Fundamental Research Funds for the Central Universities, and the Open Project Program of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University.

语种：英文

外文关键词：SiO2 aerogel; Trinitrogen degradation; Fenton oxidation; Photocatalysis

摘要：The "trinitrogen" [ammonia nitrogen (NH4+ - N), nitrate nitrogen (NO3- - N), and nitrite nitrogen (NO2- - N)] from industrial or domestic wastewater can lead to eutrophication of water bodies. When ammonia nitrogen is converted into nitrate nitrogen, it will cause high nitrogen oxygen demand, which will also lead to hyperammonemia. High nitrite content in water bodies will increase the risk of human cancer. In this paper, Fe-Ce bimetallic-doped composites (Fe-Ce/SiO2 and Fe-Ce-SiO2/TiO2) were synthesized using SiO2 aerogel as a carrier for the adsorption and degradation of "three nitrogen."SiO2/TiO2 was prepared by dipping method, and Fe and Ce bimetals were loaded on the surface of SiO2/TiO2 material, and the effect of photo-Fenton oxidation on the degradation rate of three nitrogen under different materials was explored. The results showed that when the dosage of catalyst was 0.01 g, pH value was 11.0, and the concentration of H2O2 was 80 mmol/L, the photocatalytic efficiency was the best, and the degradation efficiency of three nitrogen remained above 70%.