中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 广州能源研究所
  3. 中国科学院广州能源研究所
Effective Recovery of Au from Low-Concentration Solutions by a Self-Synthesized Mesoporous Resin Modified by Dimethylamine

文献类型：期刊论文

作者Xu, Wenping2,3; Yao, Shimiao1,2,4; Ji, Xuran2,3; Zhang, Hairong1,2,4; Chen, Xuefang2,3,4; Chen, Xinde2
刊名INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
出版日期2022-02-23
卷号61期号:7页码:2894-2903
ISSN号0888-5885
DOI10.1021/acs.iecr.1c04796
通讯作者Chen, Xuefang(chenxf@ms.giec.ac.cn) ; Chen, Xinde(cxd_cxd@hotmail.com)
英文摘要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.
WOS关键词WASTE RINSE WATER ; AQUEOUS-SOLUTIONS ; ION-EXCHANGE ; ACTIVATED CARBON ; VOLTAMMETRIC DETERMINATION ; EXPERIMENTAL-DESIGN ; NANO-PARTICLES ; ADSORPTION ; REMOVAL ; GOLD
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
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000766191300021
资助机构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
源URL[http://ir.giec.ac.cn/handle/344007/35934]  
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.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
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.

入库方式： OAI收割

来源：广州能源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。