Bacterial cellulose hybrid membrane grafted with high ratio of adipic dihydrazide for highly efficient and selective recovery of gold from e-waste

doi:10.1016/j.seppur.2022.121021

	Bacterial cellulose hybrid membrane grafted with high ratio of adipic dihydrazide for highly efficient and selective recovery of gold from e-waste
	Zhang, Xi ; Li, Huaimeng ; Ye, Mengxiang ; Zhang, Haimin ; Wang, Guozhong ; Zhang, Yunxia 2
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2022-07-01
卷号	292
关键词	ADH@BC hybrid membrane Gold Recovery Selective Regeneration
ISSN号	1383-5866
DOI	10.1016/j.seppur.2022.121021
通讯作者	Zhang, Yunxia(yxzhang@issp.ac.cn)
英文摘要	To solve metal resource shortage and alleviate environmental issues, it is in urgent need to explore cost-effective and environment-friendly adsorbents for sustainable recovery of valuable gold from e-waste. Herein, bacterial cellulose (BC) hybrid membrane grafted with adipic dihydrazide (ADH) has been fabricated via a facile schiff base reaction strategy for efficient and selective recovery of gold from complex aqueous media. The resulting ADH@BC hybrid membrane features high ratio of hydrazide groups (67% of ADH by mass content) and hierarchical porous structure, ensuring high adsorption capacity (1149 mg/g) and fast adsorption equilibrium time (20 min) toward gold. Meanwhile, the remarkable recovery selectivity of gold is achieved in the simulated e waste leachate containing a large amount of interfering metal ions. Notably, the captured Au(III) species on ADH@BC hybrid membrane can be directly converted by redox-active hydrazide groups into Au(0) with no need of any external reductant. Furthermore, the developed ADH@BC membrane possesses superior recycling and reusability performance, as reflected by no obvious decrease in gold extraction capability after six cycles. More importantly, the ADH@BC hybrid membrane is capable of extracting almost 100% of gold from actual waste central processing unit (CPU) leachate, yielding high-purity gold (23.7 K) after pyrolysis.
资助项目	National Natural Science Foundation of China[52173268] ; National Natural Science Foundation of China[51772299] ; Presidential Foundation of Hefei Institutes of Physical Science, Chinese Academy of Sciences[YZJJZX202019]
WOS关键词	PRECIOUS-METAL RECOVERY ; ELECTRONIC WASTE ; CAPTURE ; EXTRACTION ; WATER ; ADSORPTION ; REDUCTION ; HYDROGELS ; REMOVAL ; COPPER
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000793398700005
资助机构	National Natural Science Foundation of China ; Presidential Foundation of Hefei Institutes of Physical Science, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/130807]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Yunxia
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Ctr Environm & Energy Nanomat, Inst Solid State Phys, Hefei Inst Phys Sci,Key Lab Mat Phys,Anhui Key La, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xi,Li, Huaimeng,Ye, Mengxiang,et al. Bacterial cellulose hybrid membrane grafted with high ratio of adipic dihydrazide for highly efficient and selective recovery of gold from e-waste[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,292.
APA	Zhang, Xi,Li, Huaimeng,Ye, Mengxiang,Zhang, Haimin,Wang, Guozhong,&Zhang, Yunxia.(2022).Bacterial cellulose hybrid membrane grafted with high ratio of adipic dihydrazide for highly efficient and selective recovery of gold from e-waste.SEPARATION AND PURIFICATION TECHNOLOGY,292.
MLA	Zhang, Xi,et al."Bacterial cellulose hybrid membrane grafted with high ratio of adipic dihydrazide for highly efficient and selective recovery of gold from e-waste".SEPARATION AND PURIFICATION TECHNOLOGY 292(2022).