@inproceedings{fc8825a89ef54d829e7e3c2ba8027234,
title = "Gold removal and recovery using mesoporous silica adsorbents",
abstract = "Two gold-selective adsorbents were prepared from MCM-41 by grafting amino and thiol groups. The mesoporous silica adsorbents possess higher adsorption capacity for gold compared to activated carbons. The OMS-NH2 adsorbent was able to selectively remove and adsorb gold from solutions containing copper. Pure gold was recovered by a simple acid wash and the regenerated adsorbents could be reused. The OMS-SH also selectively adsorb gold, but always with a small quantity of copper (ca 1-5 at. %). In addition, the metals were irreversibly adsorbed on OMS-SH and can not be easily recovered.",
keywords = "Adsorption, Binary mixture, Copper, Gold, MCM-41, Separation",
author = "Lam, {K. F.} and Yeung, {K. L.} and G. McKay",
year = "2005",
language = "English",
isbn = "0976798514",
series = "2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings",
pages = "273--276",
editor = "M. Laudon and B. Romanowicz",
booktitle = "2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings",
note = "2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 ; Conference date: 08-05-2005 Through 12-05-2005",
}