Effect of K_(2)CO_(3) doping on CO_(2) sorption performance of silicate lithium-based sorbent prepared from citric acid treated sediment

作     者：Junya Wang Kai Chen Yi Wang Jiuming Lei Abdullah Alsubaie Ping Ning Shikun Wen Taiping Zhang Abdulraheem S.AAlmalki AAlhadhrami Zhiping Lin Hassan Algadi Zhanhu Guo Junya Wang;Kai Chen;Yi Wang;Jiuming Lei;Abdullah Alsubaie;Ping Ning;Shikun Wen;Taiping Zhang;Abdulraheem S.A.Almalki;A.Alhadhrami;Zhiping Lin;Hassan Algadi;Zhanhu Guo

作者机构：Faculty of Environmental Science and EngineeringKunming University of Science and TechnologyKunming 650500China Ecological Environment Monitoring StationLinxiang BranchLincang Municipal Bureau of Ecology and EnvironmentLincang 677000China Department of PhysicsCollege of KhurmaTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Department of ChemistryFaculty of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Integrated Composites Laboratory(ICL)Department of Chemical and Bimolecular EngineeringUniversity of TennesseeKnoxvilleTN 37996United States Department of Electrical EngineeringFaculty of EngineeringNajran UniversityP.O.Box 1988Najran 11001Saudi Arabia College of Materials Science and EngineeringTaizhou UniversityTaizhou 318000China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2022年第51卷第11期

页      面：10-20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：the financial support from National Natural Science Foundation of China(21868015,51802135) the Applied Basic Research Programs of Yunnan Province(140520210057) Taif University Researchers Supporting Project number(TURSP-2020/163) Taif University,Taif,Saudi Arabia 

主　　题：CO_(2)sorbents Li_(4)SiO_(4) Sediment Citric acid Doped with K_(2)CO_(3) 

摘      要：In this paper,a low-cost and environmental-friendly leaching agent citric acid(C_(6)H_(8)O_(7))was used to treat the sediment of Dianchi Lake(SDL)to synthesize lithium silicate(Li_(4)SiO_(4))based CO_(2)*** results were compared with that treated with strong ***,the effects of preparation conditions,sorption conditions and desorption conditions on the CO_(2)sorption performance of prepared Li_(4)SiO_(4)were systematically *** optimal conditions,the Li_(4)SiO_(4)sorbent was successfully synthesized and its CO_(2)sorption capacity reached 31.37%(mass),which is much higher than that synthesized from SDL treated with strong *** is speculated that the presence of some elements after C_(6)H_(8)O_(7)treatment may promote the sorption of synthetic Li_(4)SiO_(4)to CO_(2).In addition,after doping with K_(2)CO_(3),the CO_(2)uptake increases from the original 12.02%and 22.12%to 23.96%and 32.41%(mass)under the 20%and 50%CO_(2)partial pressure,*** importantly,after doping K_(2)CO_(3),the synthesized Li_(4)SiO_(4)has a high cyclic stability under the low CO_(2)partial pressure.