Preparation and characterization of ZnTiO 3 –TiO 2 /pillared montmorillonite composite catalyst for enhanced photocatalytic activity
作者： Liangxing Wu , Pingxiao Wu , Yajie Zhu , Nengwu Zhu , Zhi Dang
DOI: 10.1007/S11164-015-2356-Z
关键词:
摘要: ZnTiO3–TiO2/organic pillared montmorillonite (pMt) composite catalyst was successfully prepared in this paper by immobilizing ZnTiO3–TiO2 onto pMt. The composition and texture of the were characterized X-ray diffraction, Raman spectroscopy, Fourier transform infrared transmission electron microscopy, energy dispersive spectrometry, ultraviolet–visible light (UV–Vis) diffuse reflectance spectroscopy photoelectron spectroscopy. photocatalytic activity tested via degradation methyl blue (MB) under both visible irradiation UV light. results indicated that ZnTiO3–TiO2/pMt had an apparent absorption at area irradiation, exhibited a higher efficiency degredation MB irradiation. This due to heterostructure ZnTiO3–TiO2, mesoporous structure specific surface composite. In addition, radical scavenging experiments showed holes superoxide radicals are responsible for
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