文献类型：期刊文献

英文题名：Effect of oxygen-containing functional groups on selenium removal by the carbonaceous adsorbent from MSW incineration flue gas

作者：Yu, Shuaijie[1,2];Li, Shuai[2];Hu, Hongyun[2,3];Gao, Linxia[1];Lin, Zhong[4];Zou, Chan[5];Dong, Lu[2];Huang, Yongda[2];Yao, Hong[2]

机构：[1]Hubei Univ Technol, Sch Civil & Environm Engn, Wuhan 430068, Peoples R China;[2]Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Peoples R China;[3]Huazhong Univ Sci & Technol Shenzhen, Res Inst, Shenzhen 518000, Peoples R China;[4]Guangdong Ocean Univ, Fac Chem & Environm Sci, Zhanjiang 524088, Peoples R China;[5]Wuhan Univ Technol, Sch Safety Sci & Emergency Management, Wuhan 430070, Peoples R China

年份：2026

卷号：405

外文期刊名：FUEL

收录：SCI-EXPANDED(收录号：WOS:001564926900001)、、WOS

基金：This work was supported by the Special Funds for Guiding Local Scientific and Technological Development by the Central Government of China (Hubei, 2024CSA088) , National Natural Science Foundation of China (41977125) , and the Natural Science Foundation of Guangdong Province (2023A1515012225) . The authors also gratefully acknowledge the assistance of the Analytic and Testing Center of Huazhong University of Science and Technology for the experimental measurements.

语种：英文

外文关键词：Municipal solid waste incineration; Selenium; Activated carbon; Adsorption mechanism; Oxygen-containing functional groups

外文摘要：The cost-effectiveness of removing gaseous selenium from municipal solid waste (MSW) incineration flue gas is essential for environmental protection. Activated carbon (AC) is extensively used to remove gaseous pollutants due to its large specific surface area and abundance of oxygen-containing functional groups. This study investigated the adsorption mechanism of SeO2 (g) on activated carbon surfaces with oxygen-containing functional groups in incineration flue gas, using a combination of experiments and density functional theory (DFT) calculations. The activated carbon with a low content of oxygen-containing functional groups (PAC) was first prepared by acid washing. Then, the adsorption experiments were carried out on a selenium adsorption setup to compare the adsorption performance between AC and PAC. The results demonstrated that oxygen-containing functional groups significantly enhanced the selenium adsorption capacity of AC, with the maximum capacity reaching 2620.09 mu g/g, representing a 63.6 % increase compared to PAC. The distribution of selenium forms adsorbed on the surface of activated carbon showed that selenium mainly existed in the form of Se4+ and was adsorbed on the carbonaceous surface through the formation of Se-O-C covalent bonds. Oxygen-containing functional groups markedly reduced the adsorption energy of SeO2 by enhancing active sites of adjacent carbon atoms, achieving the most stable adsorption energy of -636.59 kJ/mol. This study provides a theoretical foundation for the enhanced control of selenium emissions from incineration flue gas using activated carbon, which can facilitate cleaner incineration and enhance selenium emission controls.