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Fig. 12 | Sustainable Environment Research

Fig. 12

From: Selective adsorption of gold ion in wastewater with competing cations by novel thiourea-reduced graphene oxide

Fig. 12

Mechanism of synthesizing TU-rGO and adsorption and desorption for Au with TU-rGO. a synthesis of GO by Hummers’ method; b reduction of GO; c doping of nitrogen and sulfur on the surface of TU-rGO; d adsorption of Au by TU-rGO; e reduction of Au by the sulfur functional group to form elemental gold on the surface of TU-rGO; f desorption of Au from the surface of TU-rGO

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Sustainable Environment Research

ISSN: 2468-2039

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