Photocatalytic hydrogen production from methanol aqueous solution under visible-light using Cu/S-TiO2 prepared by electroless plating method

摘要

Cu was loaded on the S-doped TiO2 by electroless plating method. The prepared Cu/S-TiO2 exhibited high photocatalytic activity for hydrogen generation, and the yield is up to 75 mmol h(-1) g(-1) cat in methanol solution. Their physical structure and chemical properties were characterized by UV-Vis, XRD, XPS and EXAFS. The copper species were CuO and Cu2O, and the sample showed excellent visible light absorption ability. Comparing with the sample prepared by chemical reducing method, the electroless plated copper on S-TiO2 was highly dispersed, which could facilitate photo-generated charges capture, transfer and separation. (C) 2014 Elsevier B.V. All rights reserved.