Fabrication of hypercrosslinked hydroxyl-rich solid phase extractants for cesium separation from the salt lake brine

doi:10.1016/j.cej.2020.125991

	Fabrication of hypercrosslinked hydroxyl-rich solid phase extractants for cesium separation from the salt lake brine
	Xu, Zihao 1,2; Rong, Meng 1,2; Meng, Qiyu 1,2; Yao, Haoyu 2,3; Ni, Shan 1,2; Wang, Li 1; Xing, Huifang 1,2; Qu, Hongnan 1; Yang, Liangrong 1,2; Liu, Huizhou 1,2
刊名	CHEMICAL ENGINEERING JOURNAL
	2020-11-15
卷号	400 页码:12
关键词	Phenols Solid phase extractants Ion exchange Cesium Salt lake brine
ISSN号	1385-8947
DOI	10.1016/j.cej.2020.125991
英文摘要	In this work, two hypercrosslinked hydroxyl-rich polymers (HCP-P and HCP-R) were facilely prepared through a one-pot Friedel-Crafts polymerization of phenol, resorcinol and formaldehyde dimethyl acetal, respectively. HCP-P and HCP-R were investigated for their ability to separate Cs+ from the salt lake brine via ion-exchange reaction between Cs+ and O- Na+. The Cs+ adsorption isotherms of HCP-P and HCP-R follow the Langmuir model, and their adsorption capacities reach 249.64 mg g(-1) and 259.97 mg g(-1), surpassing most of commercial materials like AMP-PAN (81 mg g(-1)) and TAM-5 (191.8 mg g(-1)). The Cs+/K+ separation factors (S.F.) of HCPs can reach 12.4 even in the presence of high concentrations of K+ (C-(K)(+)/C-(Cs)(+) = 712.5). Notably, HCPs could retain more than 90% of the adsorption capacities after 5 successive adsorption-desorption cycles. Besides, X-ray photoelectron spectroscopy (XPS), FT-IR spectra and TEM-EDS analysis revealed the ion exchange mechanism of the Cs+ adsorption process. This work demonstrated the excellent application potential of hypercrosslinked hydroxyl-rich polymer adsorbents in separating Cs+ from the salt lake brine.
资助项目	National Natural Science Foundation of China[21922814] ; National Natural Science Foundation of China[21676273] ; National Natural Science Foundation of China[21961160745] ; National Natural Science Foundation of China[31961133019] ; National Natural Science Foundation of China[21921005] ; Beijing Natural Science Foundation[2194086]
WOS关键词	ION-EXCHANGE ; SOLVENT-EXTRACTION ; AMMONIUM MOLYBDOPHOSPHATE ; AQUEOUS-SOLUTIONS ; SELECTIVE REMOVAL ; ALKALI-METALS ; ADSORPTION ; WASTE ; STRONTIUM ; CS+
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000569320400006
资助机构	National Natural Science Foundation of China ; Beijing Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42103]
专题	中国科学院过程工程研究所
通讯作者	Yang, Liangrong; Liu, Huizhou
作者单位	1.Chinese Acad Sci, Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Beijing Key Lab Ionic Liquids Clean Proc, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zihao,Rong, Meng,Meng, Qiyu,et al. Fabrication of hypercrosslinked hydroxyl-rich solid phase extractants for cesium separation from the salt lake brine[J]. CHEMICAL ENGINEERING JOURNAL,2020,400:12.
APA	Xu, Zihao.,Rong, Meng.,Meng, Qiyu.,Yao, Haoyu.,Ni, Shan.,...&Liu, Huizhou.(2020).Fabrication of hypercrosslinked hydroxyl-rich solid phase extractants for cesium separation from the salt lake brine.CHEMICAL ENGINEERING JOURNAL,400,12.
MLA	Xu, Zihao,et al."Fabrication of hypercrosslinked hydroxyl-rich solid phase extractants for cesium separation from the salt lake brine".CHEMICAL ENGINEERING JOURNAL 400(2020):12.