Cu/ACF adsorbent modified by non-thermal plasma for simultaneous adsorption–oxidation of H_(2)S and PH_(3)

作     者：Xinyu Yang Kai Li Chi Wang Fei Wang Xin Sun Yixing Ma Yuan Li Lei Shi Ping Ning Xinyu Yang;Kai Li;Chi Wang;Fei Wang;Xin Sun;Yixing Ma;Yuan Li;Lei Shi;Ping Ning

作者机构：Faculty of Environmental Science and EngineeringKunming University of Science and TechnologyKunming 650500China National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical IndustriesKunming University of Science and TechnologyKunming 650500China Faculty of Chemical EngineeringKunming University of Science and TechnologyKunming 650500China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2023年第127卷第5期

页      面：641-651页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：funding for this study received from the Fundamental Research Funds for the National Natural Science Foundation of China(Nos.21876071,51968034,41807373 and 21667015) Science and Technology Program of Yunnan province(No.2019FB069) 

主　　题：Non-thermal plasma(NTP) Surface modification Simultaneous adsorption-oxidation Cu/ACF(activated carbon fiber loaded with copper) H_(2)S PH_(3) 

摘      要：Non-thermal plasma(NTP)surface modification technology is a new method to control the surface properties of materials,which has been widely used in the field of environmental protection because of its short action time,simple process and no *** this study,Cu/ACF(activated carbon fiber loaded with copper)adsorbent was modified with NTP to remove H_(2)S and PH_(3) simultaneously under low temperature and micro-oxygen ***,the effects of different modified atmosphere(air,N_(2) and NH_(3)),specific energy input(0–13 J/mL)and modification time(0–30 min)on the removal of H_(2)S and PH_(3) were *** test results indicated that under the same reaction conditions,the adsorbent modified by NH_(3) plasma with 5 J/mL for 10 min had the best removal effect on H_(2)S and PH_(3).CO_(2) temperature-programmed desorption and X-ray photoelectron spectroscopy(XPS)analyzes showed that NH_(3) plasma modification could introduce amino functional groups on the surface of the adsorbent,and increase the types and number of alkaline sites on the ***-Emmett-Teller and scanning electron microscopy showed that NH_(3) plasma modification did not significantly change the pore size structure of the adsorbent,but more active components were evenly exposed to the surface,thus improving the adsorption *** addition,X-ray diffraction and XPS analysis indicated that the consumption of active components(Cu and Cu_(2)O)and the accumulation of sulfate and phosphate on the surface and inner pores of the adsorbent are the main reasons for the deactivation of the adsorbent.