Hydrothermal synthesis of rose-like AgVO3/Bi2WO6 heterojunctions with enhanced visible-light-driven photocatalytic activity

2018 ◽  
Vol 103 ◽  
pp. 323-328 ◽  
Author(s):  
Guowei Wang ◽  
Limin Wang
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Visible Light Driven

Hydrothermal Synthesis and Visible-Light-Driven Photocatalytic Activity of Allophane – Wakefieldite-(Ce) Composite

2014 ◽  
Vol 896 ◽  
pp. 545-548
Author(s):  
Mirabbos Hojamberdiev ◽  
Yuki Makinose ◽  
Kenichi Katsumata ◽  
Toshihiro Isobe ◽  
Nobuhiro Matsushita ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Gas Phase ◽  
X Ray Diffraction ◽  
Mechanical Mixing ◽  
X Ray ◽  
Surface Areas ◽  
Visible Light Driven ◽  
Gas Molecules

In this study, highly adsorptive mechanically-mixed and as-synthesized allophane–wakefieldite-(Ce) composites were prepared by mechanical mixing and hydrothermal synthesis, respectively. The results from X-ray diffraction and Raman spectroscopy analyses show that the mechanically-mixed composite has higher crystallinity than the as-synthesized composite. The nanoparticles of wakefieldite-(Ce) were homogenously distributed with allophane in the as-synthesized composite. The specific surface areas of the mechanically-mixed and as-synthesized composites are 164 m2/g and 191 m2/g, respectively. The photocatalytic activity of the samples was evaluated for the degradation of acetaldehyde (AcH) gas under visible light. Both composites demonstrated higher photocatalytic activity than individual wakefieldite-(Ce) and allophane because allophane in the composites played an important role in the adsorption of acetaldehyde gas molecules and the mediation between the gas phase and the wakefieldite-(Ce) surface.

Novel nanoparticle-assembled Bi12GeO20 hierarchical structures: facile hydrothermal synthesis and excellent photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92560-92568 ◽  
Author(s):  
Xin-Hua Huang ◽  
Lei Zhang ◽  
Jian Song ◽  
Xiao-Feng Cao ◽  
Yan-Chuan Guo
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Hierarchical Structures ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Driven ◽  
Uv Visible

Novel nanoparticle-assembled Bi12GeO20 hierarchical structures with excellent UV-visible light driven photocatalytic performance have been successfully prepared via a facile hydrothermal route.

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