Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Effective Recovery of Au from Low-Concentration Solutions by a Self-Synthesized Mesoporous Resin Modified by Dimethylamine | |
Xu, Wenping1,2; Yao, Shimiao1,3,4; Ji, Xuran1,2; Zhang, Hairong1,3,4; Chen, Xuefang1,2,4; Chen, Xinde1
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| 2022-02-23 | |
| Source Publication | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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| ISSN | 0888-5885 |
| Volume | 61Issue:7Pages:2894-2903 |
| Corresponding Author | Chen, Xuefang(chenxf@ms.giec.ac.cn) ; Chen, Xinde(cxd_cxd@hotmail.com) |
| Abstract | 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 |
| WOS Keyword | WASTE RINSE WATER ; AQUEOUS-SOLUTIONS ; ION-EXCHANGE ; ACTIVATED CARBON ; VOLTAMMETRIC DETERMINATION ; EXPERIMENTAL-DESIGN ; NANO-PARTICLES ; ADSORPTION ; REMOVAL ; GOLD |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Engineering |
| Funding Organization | 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 Subject | Engineering, Chemical |
| WOS ID | WOS:000766191300021 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/35935 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Chen, Xuefang; Chen, Xinde |
| Affiliation | 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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