Facile one-pot preparation of Bi6O6(OH)(3)(NO3)(3)center dot 1.5H(2)O-Bi2WO6 heterostructure with superior photocatalytic activity

摘要

Basic bismuth nitrate Bi6O6(OH)(3)(NO3)(3)center dot 1.5H(2)O-Bi2WO6 (BBN) modified Bi2WO6 heterostructures was facilely synthesized by one-pot hydrothermal strategy. The modification of BBN effectively improves the photocatalytic activity of Bi2WO6 for degradation and mineralization of Rhodamine B. The enhanced photocatalytic performance is attributed to the increased surface area and effective separation of photogenerated carriers induced by the potential difference at BBN/Bi2WO6 interface. Furthermore, the micro-scaled heterostructure is easily recycled with excellent circulating stability. The work provides some new insights for the rational design and synthesis of basic salt modified Bi-system photocatalyst with high efficiency. (C) 2014 Elsevier B.V. All rights reserved.