Effective Recovery of Au from Low-Concentration Solutions by a Self-Synthesized Mesoporous Resin Modified by Dimethylamine

doi:10.1021/acs.iecr.1c04796

GIEC OpenIR

	Effective Recovery of Au from Low-Concentration Solutions by a Self-Synthesized Mesoporous Resin Modified by Dimethylamine
	Xu, Wenping 1,2; Yao, Shimiao 1,3,4; Ji, Xuran 1,2; Zhang, Hairong 1,3,4; Chen, Xuefang 1,2,4; Chen, Xinde1
	2022-02-23
发表期刊	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN	0888-5885
卷号	61 期号:7 页码:2894-2903
通讯作者	Chen, Xuefang(chenxf@ms.giec.ac.cn) ; Chen, Xinde(cxd_cxd@hotmail.com)
摘要	In this study, the recovery of Au(III) from low-concentration HAuCl4 solutions was systematically investigated by a self-synthesized dimethylamine-modified mesoporous resin (DMR). The apparent morphology and pore structure of the DMR were characterized, and the adsorption property of the DMR was studied by static adsorption experiments to evaluate the effects of pH value, adsorbent dosage, and initial concentration of AuCl4-on the Au(III) adsorption from low-concentration HAuCl4 solutions. At 298 K and pH 2.0, the adsorption capacity of Au(III) was 221.16 mg/g and the recovery of Au(III) was 95%. In addition, the adsorption isotherms, thermodynamics, and kinetics were determined and modeled. The results showed that the Langmuir isotherm model and the pseudo-first-order model were more fitted to depict the adsorption of Au(III) onto the DMR, indicating that Au(III) was monolayer-adsorbed onto the surface of the DMR via chemical sorption. Delta G(0) < 0 and Delta H-0 > 0 indicated that the process was spontaneous and endothermic. The adsorption capacity of Au(III) was much higher than that reported in the literature due to the coordination interaction and electrostatic force between the amino groups and -AuCl4-, which indicated that the DMR was an adsorbent with great application potential for the recovery of Au from low-concentration solutions.
DOI	10.1021/acs.iecr.1c04796
关键词[WOS]	WASTE RINSE WATER ; AQUEOUS-SOLUTIONS ; ION-EXCHANGE ; ACTIVATED CARBON ; VOLTAMMETRIC DETERMINATION ; EXPERIMENTAL-DESIGN ; NANO-PARTICLES ; ADSORPTION ; REMOVAL ; GOLD
收录类别	SCI
语种	英语
资助项目	Project of Zhongke Bengbu Technology Transfer Center[ZKBB202009] ; National Natural Science Foundation of China[51876207] ; National Natural Science Foundation of China[52006229] ; foundation of Key Laboratory of Renewable Energy, Chinese Academy of Sciences[E0290107] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515011843]
WOS研究方向	Engineering
项目资助者	Project of Zhongke Bengbu Technology Transfer Center ; National Natural Science Foundation of China ; foundation of Key Laboratory of Renewable Energy, Chinese Academy of Sciences ; Guangdong Basic and Applied Basic Research Foundation
WOS类目	Engineering, Chemical
WOS记录号	WOS:000766191300021
出版者	AMER CHEMICAL SOC
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/35935
专题	中国科学院广州能源研究所
通讯作者	Chen, Xuefang; Chen, Xinde
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Xu, Wenping,Yao, Shimiao,Ji, Xuran,et al. Effective Recovery of Au from Low-Concentration Solutions by a Self-Synthesized Mesoporous Resin Modified by Dimethylamine[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2022,61(7):2894-2903.
APA	Xu, Wenping,Yao, Shimiao,Ji, Xuran,Zhang, Hairong,Chen, Xuefang,&Chen, Xinde.(2022).Effective Recovery of Au from Low-Concentration Solutions by a Self-Synthesized Mesoporous Resin Modified by Dimethylamine.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,61(7),2894-2903.
MLA	Xu, Wenping,et al."Effective Recovery of Au from Low-Concentration Solutions by a Self-Synthesized Mesoporous Resin Modified by Dimethylamine".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 61.7(2022):2894-2903.