Application of Photocatalytic Reduction Method with TiO<sub>2</sub> for Gold Recovery

Endang Tri Wahyuni; Agus Kuncaka; Sutarno Sutarno

doi:doi:10.11648/j.ajac.20150306.15

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Application of Photocatalytic Reduction Method with TiO₂ for Gold Recovery

Endang Tri Wahyuni, Agus Kuncaka, Sutarno Sutarno

Published in American Journal of Applied Chemistry (Volume 3, Issue 6)

Received: 3 November 2015 Accepted: 16 November 2015 Published: 8 December 2015

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Abstract

For replacing the un-ecofriendly gold recovery methods, photoreduction catalyzed by TiO₂ is proposed as an environmentally benign alternative method for gold recovery. In this study, the photocatalytic reduction was carried out by batch technique, in which the influences of reaction time, TiO₂ photocatalyst dose, and initial Au(III) concentration were evaluated to get the optimal condition. In addition, the influence of Ag(I), Cu(II), and Fe(III) that are usually found along with gold in the gold mineral is also studied. The research results indicate that the effective Au(III) photoreduction catalyzed by TiO₂ has produced brown solid powder of gold element. It is also found that the effectiveness of Au(III) photoreduction is controlled by reaction time, Au(III) initial concentration, and photocatalyst dose. Furthermore, the presence of Ag(I) and Cu(II) ions leads to the gold photodeposition decreased, meanwhile the presence of Fe(III) ion can enhance the photoreduction. It is clear that photocatalytic method is a promising method for gold recovery, with respect to the easiness, cheapness, and eco- friendliness.

Published in	American Journal of Applied Chemistry (Volume 3, Issue 6)
DOI	10.11648/j.ajac.20150306.15
Page(s)	207-211
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Photoreduction, TiO₂, Gold, Recovery, Ag, Cu, Fe

References

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APA Style

Endang Tri Wahyuni, Agus Kuncaka, Sutarno Sutarno. (2015). Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery. American Journal of Applied Chemistry, 3(6), 207-211. https://doi.org/10.11648/j.ajac.20150306.15

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ACS Style

Endang Tri Wahyuni; Agus Kuncaka; Sutarno Sutarno. Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery. Am. J. Appl. Chem. 2015, 3(6), 207-211. doi: 10.11648/j.ajac.20150306.15

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AMA Style

Endang Tri Wahyuni, Agus Kuncaka, Sutarno Sutarno. Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery. Am J Appl Chem. 2015;3(6):207-211. doi: 10.11648/j.ajac.20150306.15

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@article{10.11648/j.ajac.20150306.15,
  author = {Endang Tri Wahyuni and Agus Kuncaka and Sutarno Sutarno},
  title = {Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery},
  journal = {American Journal of Applied Chemistry},
  volume = {3},
  number = {6},
  pages = {207-211},
  doi = {10.11648/j.ajac.20150306.15},
  url = {https://doi.org/10.11648/j.ajac.20150306.15},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20150306.15},
  abstract = {For replacing the un-ecofriendly gold recovery methods, photoreduction catalyzed by TiO2 is proposed as an environmentally benign alternative method for gold recovery. In this study, the photocatalytic reduction was carried out by batch technique, in which the influences of reaction time, TiO2 photocatalyst dose, and initial Au(III) concentration were evaluated to get the optimal condition. In addition, the influence of Ag(I), Cu(II), and Fe(III) that are usually found along with gold in the gold mineral is also studied. The research results indicate that the effective Au(III) photoreduction catalyzed by TiO2 has produced brown solid powder of gold element. It is also found that the effectiveness of Au(III) photoreduction is controlled by reaction time, Au(III) initial concentration, and photocatalyst dose. Furthermore, the presence of Ag(I) and Cu(II) ions leads to the gold photodeposition decreased, meanwhile the presence of Fe(III) ion can enhance the photoreduction. It is clear that photocatalytic method is a promising method for gold recovery, with respect to the easiness, cheapness, and eco- friendliness.},
 year = {2015}
}

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TY  - JOUR
T1  - Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery
AU  - Endang Tri Wahyuni
AU  - Agus Kuncaka
AU  - Sutarno Sutarno
Y1  - 2015/12/08
PY  - 2015
N1  - https://doi.org/10.11648/j.ajac.20150306.15
DO  - 10.11648/j.ajac.20150306.15
T2  - American Journal of Applied Chemistry
JF  - American Journal of Applied Chemistry
JO  - American Journal of Applied Chemistry
SP  - 207
EP  - 211
PB  - Science Publishing Group
SN  - 2330-8745
UR  - https://doi.org/10.11648/j.ajac.20150306.15
AB  - For replacing the un-ecofriendly gold recovery methods, photoreduction catalyzed by TiO2 is proposed as an environmentally benign alternative method for gold recovery. In this study, the photocatalytic reduction was carried out by batch technique, in which the influences of reaction time, TiO2 photocatalyst dose, and initial Au(III) concentration were evaluated to get the optimal condition. In addition, the influence of Ag(I), Cu(II), and Fe(III) that are usually found along with gold in the gold mineral is also studied. The research results indicate that the effective Au(III) photoreduction catalyzed by TiO2 has produced brown solid powder of gold element. It is also found that the effectiveness of Au(III) photoreduction is controlled by reaction time, Au(III) initial concentration, and photocatalyst dose. Furthermore, the presence of Ag(I) and Cu(II) ions leads to the gold photodeposition decreased, meanwhile the presence of Fe(III) ion can enhance the photoreduction. It is clear that photocatalytic method is a promising method for gold recovery, with respect to the easiness, cheapness, and eco- friendliness.
VL  - 3
IS  - 6
ER  -

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Author Information

Endang Tri Wahyuni

Laboratory of Analytical Chemistry, Department of Chemistry, Faculty of Mathematic and Natural Sciences, Gadjah Mada University, Yogyakarta, Indonesia
Agus Kuncaka

Laboratory of Analytical Chemistry, Department of Chemistry, Faculty of Mathematic and Natural Sciences, Gadjah Mada University, Yogyakarta, Indonesia
Sutarno Sutarno

Laboratory of Inorganic Chemistry, Department of Chemistry, Faculty of Mathematic and Natural Sciences, Gadjah Mada University, Yogyakarta, Indonesia

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APA Style

Endang Tri Wahyuni, Agus Kuncaka, Sutarno Sutarno. (2015). Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery. American Journal of Applied Chemistry, 3(6), 207-211. https://doi.org/10.11648/j.ajac.20150306.15

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ACS Style

Endang Tri Wahyuni; Agus Kuncaka; Sutarno Sutarno. Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery. Am. J. Appl. Chem. 2015, 3(6), 207-211. doi: 10.11648/j.ajac.20150306.15

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AMA Style

Endang Tri Wahyuni, Agus Kuncaka, Sutarno Sutarno. Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery. Am J Appl Chem. 2015;3(6):207-211. doi: 10.11648/j.ajac.20150306.15

Copy | Download

@article{10.11648/j.ajac.20150306.15,
  author = {Endang Tri Wahyuni and Agus Kuncaka and Sutarno Sutarno},
  title = {Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery},
  journal = {American Journal of Applied Chemistry},
  volume = {3},
  number = {6},
  pages = {207-211},
  doi = {10.11648/j.ajac.20150306.15},
  url = {https://doi.org/10.11648/j.ajac.20150306.15},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20150306.15},
  abstract = {For replacing the un-ecofriendly gold recovery methods, photoreduction catalyzed by TiO2 is proposed as an environmentally benign alternative method for gold recovery. In this study, the photocatalytic reduction was carried out by batch technique, in which the influences of reaction time, TiO2 photocatalyst dose, and initial Au(III) concentration were evaluated to get the optimal condition. In addition, the influence of Ag(I), Cu(II), and Fe(III) that are usually found along with gold in the gold mineral is also studied. The research results indicate that the effective Au(III) photoreduction catalyzed by TiO2 has produced brown solid powder of gold element. It is also found that the effectiveness of Au(III) photoreduction is controlled by reaction time, Au(III) initial concentration, and photocatalyst dose. Furthermore, the presence of Ag(I) and Cu(II) ions leads to the gold photodeposition decreased, meanwhile the presence of Fe(III) ion can enhance the photoreduction. It is clear that photocatalytic method is a promising method for gold recovery, with respect to the easiness, cheapness, and eco- friendliness.},
 year = {2015}
}

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TY  - JOUR
T1  - Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery
AU  - Endang Tri Wahyuni
AU  - Agus Kuncaka
AU  - Sutarno Sutarno
Y1  - 2015/12/08
PY  - 2015
N1  - https://doi.org/10.11648/j.ajac.20150306.15
DO  - 10.11648/j.ajac.20150306.15
T2  - American Journal of Applied Chemistry
JF  - American Journal of Applied Chemistry
JO  - American Journal of Applied Chemistry
SP  - 207
EP  - 211
PB  - Science Publishing Group
SN  - 2330-8745
UR  - https://doi.org/10.11648/j.ajac.20150306.15
AB  - For replacing the un-ecofriendly gold recovery methods, photoreduction catalyzed by TiO2 is proposed as an environmentally benign alternative method for gold recovery. In this study, the photocatalytic reduction was carried out by batch technique, in which the influences of reaction time, TiO2 photocatalyst dose, and initial Au(III) concentration were evaluated to get the optimal condition. In addition, the influence of Ag(I), Cu(II), and Fe(III) that are usually found along with gold in the gold mineral is also studied. The research results indicate that the effective Au(III) photoreduction catalyzed by TiO2 has produced brown solid powder of gold element. It is also found that the effectiveness of Au(III) photoreduction is controlled by reaction time, Au(III) initial concentration, and photocatalyst dose. Furthermore, the presence of Ag(I) and Cu(II) ions leads to the gold photodeposition decreased, meanwhile the presence of Fe(III) ion can enhance the photoreduction. It is clear that photocatalytic method is a promising method for gold recovery, with respect to the easiness, cheapness, and eco- friendliness.
VL  - 3
IS  - 6
ER  -

Copy | Download