Thermal analysis of activated carbon loaded with different gold halides

J. B. Hiskey; P. H. Qi

doi:10.1007/bf03402763

Thermal analysis of activated carbon loaded with different gold halides

J. B. Hiskey, P. H. Qi

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Activated carbon loaded with gold from different halide solutions was characterized by thermalanalysis (TA) techniques. The mechanism of gold uptake by carbon varies from predominately adsorption for gold iodide to predominately reduction for gold chloride. Thermogravimetry analysis (TGA) and differential thermal analysis (DTA) measurements confirm the existence of adsorbed gold-halide species within the micropore structure of carbon. These results suggest that the ratio of reduced to adsorbed gold increases for gold halides in the following order: Au-I < Au-Br < Au-Cl. In the case of Au-I, TA results for the loaded carbon were compared with pure compounds of I₂, AuI and AuI₃.

Original language	English (US)
Pages (from-to)	13-17
Number of pages	5
Journal	Minerals and Metallurgical Processing
Volume	14
Issue number	3
DOIs	https://doi.org/10.1007/bf03402763
State	Published - 1997
Externally published	Yes

ASJC Scopus subject areas

Control and Systems Engineering
General Chemistry
Geotechnical Engineering and Engineering Geology
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1007/bf03402763

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title = "Thermal analysis of activated carbon loaded with different gold halides",

abstract = "Activated carbon loaded with gold from different halide solutions was characterized by thermalanalysis (TA) techniques. The mechanism of gold uptake by carbon varies from predominately adsorption for gold iodide to predominately reduction for gold chloride. Thermogravimetry analysis (TGA) and differential thermal analysis (DTA) measurements confirm the existence of adsorbed gold-halide species within the micropore structure of carbon. These results suggest that the ratio of reduced to adsorbed gold increases for gold halides in the following order: Au-I < Au-Br < Au-Cl. In the case of Au-I, TA results for the loaded carbon were compared with pure compounds of I2, AuI and AuI3.",

author = "Hiskey, {J. B.} and Qi, {P. H.}",

year = "1997",

doi = "10.1007/bf03402763",

language = "English (US)",

volume = "14",

pages = "13--17",

journal = "Minerals and Metallurgical Processing",

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number = "3",

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T1 - Thermal analysis of activated carbon loaded with different gold halides

AU - Hiskey, J. B.

AU - Qi, P. H.

PY - 1997

Y1 - 1997

N2 - Activated carbon loaded with gold from different halide solutions was characterized by thermalanalysis (TA) techniques. The mechanism of gold uptake by carbon varies from predominately adsorption for gold iodide to predominately reduction for gold chloride. Thermogravimetry analysis (TGA) and differential thermal analysis (DTA) measurements confirm the existence of adsorbed gold-halide species within the micropore structure of carbon. These results suggest that the ratio of reduced to adsorbed gold increases for gold halides in the following order: Au-I < Au-Br < Au-Cl. In the case of Au-I, TA results for the loaded carbon were compared with pure compounds of I2, AuI and AuI3.

AB - Activated carbon loaded with gold from different halide solutions was characterized by thermalanalysis (TA) techniques. The mechanism of gold uptake by carbon varies from predominately adsorption for gold iodide to predominately reduction for gold chloride. Thermogravimetry analysis (TGA) and differential thermal analysis (DTA) measurements confirm the existence of adsorbed gold-halide species within the micropore structure of carbon. These results suggest that the ratio of reduced to adsorbed gold increases for gold halides in the following order: Au-I < Au-Br < Au-Cl. In the case of Au-I, TA results for the loaded carbon were compared with pure compounds of I2, AuI and AuI3.

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JO - Minerals and Metallurgical Processing

JF - Minerals and Metallurgical Processing

IS - 3

ER -

Thermal analysis of activated carbon loaded with different gold halides

Abstract

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