American Journal of Applied Chemistry

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Application of Photocatalytic Reduction Method with TiO2 for Gold Recovery

Received: 03 November 2015    Accepted: 16 November 2015    Published: 08 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.

DOI 10.11648/j.ajac.20150306.15
Published in American Journal of Applied Chemistry (Volume 3, Issue 6, December 2015)
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), 2024. Published by Science Publishing Group

Keywords

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

References
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Author Information
  • Laboratory of Analytical Chemistry, Department of Chemistry, Faculty of Mathematic and Natural Sciences, Gadjah Mada University, Yogyakarta, Indonesia

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

  • 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

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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://download.sciencepg.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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