Preparation of Floating Au/PVP Film on Water for a Green and Rapid Extraction of Gold Ion
作者： Minyue Li , Qidi Sun , Chang-jun Liu
DOI: 10.1021/ACSSUSCHEMENG.6B00305
关键词:
摘要: Currently, the demand for gold is ever increasing while reserve of ore very limited. The extraction ion from various waste effluents now a important way sustainable supply. In this work, green, selective, simple, easy, cheap and energy efficient to recover Au mimic stream containing Au, Zn, Fe Cu ions has been developed using room temperature electron reduction with argon glow discharge as source. Metal sufficiently high standard electrode potentials can be reduced by such reduction. A selective thereby established, where other metal remain in solution. With addition poly(vinylpyrrolidone) (PVP), an Au/PVP floating film rapidly formed on surface water within few minutes. This makes collection recovered easy recovery yield. yield reaches 87.19% 60 s 99.96% 480 under reaction condit...
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