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Baksi A, Gandi M, Chaudhari S, et al. Extraction of Silver by Glucose. Angew Chem Int Ed Engl. 2016;55(27):7777-81doi: 10.1002/anie.201510122.
Baksi, A., Gandi, M., Chaudhari, S., Bag, S., Gupta, S. S., & Pradeep, T. (2016). Extraction of Silver by Glucose. Angewandte Chemie (International ed. in English), 55(27), 7777-81. https://doi.org/10.1002/anie.201510122
Baksi, Ananya, et al. "Extraction of Silver by Glucose." Angewandte Chemie (International ed. in English) vol. 55,27 (2016): 7777-81. doi: https://doi.org/10.1002/anie.201510122
Baksi A, Gandi M, Chaudhari S, Bag S, Gupta SS, Pradeep T. Extraction of Silver by Glucose. Angew Chem Int Ed Engl. 2016 Jun 27;55(27):7777-81. doi: 10.1002/anie.201510122. Epub 2016 Apr 27. PMID: 27119514.
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Angew Chem Int Ed Engl. 2016 Jun 27;55(27):7777-81. doi: 10.1002/anie.201510122. Epub 2016 Apr 27.

Extraction of Silver by Glucose.

Angewandte Chemie (International ed. in English)

Ananya Baksi, Mounika Gandi, Swathi Chaudhari, Soumabha Bag, Soujit Sen Gupta, Thalappil Pradeep

Affiliations

  1. Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai, 600 036, India.
  2. Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai, 600 036, India. [email protected].

PMID: 27119514 DOI: 10.1002/anie.201510122

Abstract

Unprecedented silver ion leaching, in the range of 0.7 ppm was seen when metallic silver was heated in water at 70 °C in presence of simple carbohydrates, such as glucose, making it a green method of silver extraction. Extraction was facilitated by the presence of anions, such as carbonate and phosphate. Studies confirm a two-step mechanism of silver release, first forming silver ions at the metal surface and later complexation of ionic silver with glucose; such complexes have been detected by mass spectrometry. Extraction leads to microscopic roughening of the surface making it Raman active with an enhancement factor of 5×10(8) .

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: extraction of metals; extractive metallurgy; green processes; silver

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