阴离子交换制备a-Ag层状双氢氧根复合材料精选.pdf

Separation and Purification Technology 120 (2013) 134–140 Contents lists available at ScienceDirect Separation and Purification Technology journal homepage: www.else /locate/seppur Anion-exchange precipitation synthesis of a-Ag WO /Zn–Cr layered 2 4 double hydroxides composite with enhanced visible-light-driven photocatalytic activity Jianying Zhu, Hai Fan ⇑, Jianchao Sun, Shiyun Ai ⇑ College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, Shandong, PR China a r t i c l e i n f o a b s t r a c t Article history: In this paper, we report the obtention of a-Ag WO /Zn–Cr Layered Double Hydroxides (LDHs) composite 2 4 Received 4 March 2013 via a facile anion-exchange precipitation reaction method by adding AgNO3 solution into WO2 anions 4 Received in revised form 23 August 2013 intercalated Zn–Cr LDHs suspensions. X-ray diffraction, field emission scanning electronic microscope, Accepted 29 September 2013 X-ray photoelectron spectroscopy, and Fourier Transform Infrared Spectrum were used to characterize Available online 9 October 2013 the products. It was found that a-Ag WO crystals w