Electrochemical reduction and recovery of trace gold(I) from environmentally friendly thiosulfate leaching solutions using carbon electrodes
artnum: 119799
related by: authorship_76841
type: Continuant
has publication venue: Carbon
type: Document
related by: authorship_75948
has funding vehicle: funding4840
related by: authorship_75949
type: Article
type: Entity
type: Generically Dependent Continuant
type: Information Content Entity
doi: 10.1016/j.carbon.2024.119799
most specific type: Article
volume: 232
e iscopus: 2-s2.0-85208268786
type: Thing
related by: authorship_75950
crisid: 12657
date time value: article date 12657
freetext keyword: Au0; Carbon electrodes; Electro reduction-recovery; Trace Au(S2O3)23− Carbon capture and utilization; Carbon sequestration; Electrolytic reduction; Gold ore treatment; Graphite electrodes; Kyoto Protocol; Carbon electrode; Carbon material; Electro reduction; Electro reduction-recovery; Electrochemical recovery; Electrochemical reductions; Leaching solution; Low concentrations; Thiosulphate leaching; Trace au(S2O3)23−; Carbon electrodes
estado: published
most specific type: Document
abstract: Efficient recovery of Au(S2O3)23− at low concentrations is a key challenge for the development of environmentally friendly, cyanide-free thiosulfate leaching methods in industry. In the study, carbon materials including activated carbon (AC), graphite, and graphene were used as electrodes for electrochemical reduction and recovery (electro reduction-recovery) of trace gold(I) from thiosulfate leaching solutions (Au(S2O3)23−). The results demonstrated that Au(S2O3)23− could be efficiently recovered in the form of Au0 with nearly 100 %25 recovery from both simulated and actual gold ore leaching solutions, significantly simplifying traditional recovery and reduction processes. Even in the presence of impurities such as cations and S2O32−, recovery remained high, around 90 %25. Among the parameters studied, applied voltage was the most critical for optimizing recovery, as it enhanced ion migration and significantly improved gold reduction. The study investigated the relationship between the intrinsic properties of carbon materials and their electrochemical reduction and recovery capabilities. Rich porosity of carbon materials promoted interactions with Au(S2O3)23−, enhancing the electric double layer capacity, while π–π∗ satellite transitions played a dominant role in the charge transfer, thereby improving the reduction rate. This research offers new insights of the mechanisms behind the recovery of trace Au(S2O3)23− from thiosulfate leaching solutions through carbon electrodes.

Document
type: Class

Carbon
type: Document
type: Thing
type: Journal
type: Generically Dependent Continuant
type: Entity
type: Information Content Entity
type: Continuant
type: Periodical
publication venue for: Electrochemical reduction and recovery of trace gold(I) from environmentally friendly thiosulfate leaching solutions using carbon electrodes
type: Collection

Continuant
type: Class

Entity
type: Class

Generically Dependent Continuant
type: Class

individual
rights: termsOfUse
date: 2026-08-25T07:00:24
publisher: vivo
type: Document
label: RDF description of Electrochemical reduction and recovery of trace gold(I) from environmentally friendly thiosulfate leaching solutions using carbon electrodes - http://orbis.uaslp.mx/vivo/individual/scopus12656

Article
type: Class

Information Content Entity
type: Class

funding4840
type: Relationship
type: BFO_0000020
type: Entity
type: Thing
type: Grant
type: Continuant
label: National Key Research and Development Program of China, NKRDPC, (2021YFC2900900); National Key Research and Development Program of China, NKRDPC; Consejo Nacional de Humanidades, Ciencias y Tecnologías, Conahcyt, (813934); Consejo Nacional de Humanidades, Ciencias y Tecnologías, Conahcyt
funding vehicle for: Electrochemical reduction and recovery of trace gold(I) from environmentally friendly thiosulfate leaching solutions using carbon electrodes