Advances in natural polysaccharides for gold recovery from e-waste: Recent developments in preparation with structural features

被引：13
作者：
Ahmad, Mudasir [1 ,2 ]
Naik, Mehraj ud-din [4 ]
Tariq, Muhammad Rizwan [1 ]
Khan, Idrees [1 ]
Zhang, Lei [1 ]
Zhang, Baoliang [1 ,3 ,5 ]
机构：
[1] Northwestern Polytech Univ, Sch Chem & Chem Engn, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Xian Key Lab Funct Organ Porous Mat, Xian 710129, Peoples R China
[3] Sunresins New Mat Co Ltd, Shaanxi Engn & Res Ctr Funct Polymers Adsorpt & Se, Xian 710072, Peoples R China
[4] Jazan Univ, Coll Engn, Dept Chem Engn, Jazan 45142, Saudi Arabia
[5] Northwestern Polytech Univ, Youyi Rd 127, Xian 710072, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2024年 / 261卷
关键词：
Natural polysaccharides; Gold; E-waste; CROSS-LINKED CHITOSAN; HEAVY-METAL IONS; MODIFIED PERSIMMON TANNIN; PRINTED-CIRCUIT BOARDS; SPENT MOBILE PHONES; ELECTRONIC WASTE; PRECIOUS METALS; SELECTIVE RECOVERY; AQUEOUS-SOLUTIONS; MULTICOMPONENT POLYMERIZATION;
D O I：
10.1016/j.ijbiomac.2024.129688
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The increasing demand for gold because of its high market price and its wide use in the electronic industry has attracted interest in gold recovery from electronic waste (e-waste). Gold is being dumped as solid e-waste which contains gold concentrations ten times higher than gold ores. Adsorption is a widely used approach for extracting gold from e-waste due to its simplicity, low cost, high efficiency, and reusability of adsorbent material. Natural polysaccharides received increased attention due to their natural abundance, multi-functionality, biodegradability, and nontoxicity. In this review, a brief history, and advancements in this technology were evaluated with recent developments in the preparation and mechanism advancements of natural polysaccharides for efficient gold recovery. Moreover, we have discussed some bifunctional modified polysaccharides with detailed gold adsorption mechanisms. The modified adsorbent materials developed from polysaccharides coupled with inorganic/organic functional groups would demonstrate an efficient technology for the development of new biobased materials for efficient gold recovery from e-waste. Also, future views are recommended for highlighting the direction to achieve fast and effective gold recovery from e-waste in a friendly and sustainable manner.
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页数：24
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