热解法合成增强光催化活性的In_2O_3-TiO_2纳米管
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摘要
通过热解法分解InCl_3形成In_2O_3并均匀沉积于通过阳极氧化法制备的TiO_2纳米管(TNAs)表面,并通过光催化降解罗丹明B(RhB)来测试In_2O_3-TNAs的光催化活性。结果表明,复合In_2O_3后TNAs的光催化活性显著提升。此外热解沉积工艺简单、成本低,有利于光催化剂的批量、工业化生产,为金属氧化物半导体的沉积提供了新思路。
The pyrolysis method has been used for decomposing InCl_3so as to form In_2O_3,and depositing uniformly on the surface of Ti O_2nanotube(TNAs)which was prepared by anodic oxidation method,and the photo-catalytic activity of In_2O_3-TNAs was tested by the photo-catalytic degradation of Rodamine B(Rh B).The results show that after combined with In_2O_3,the photo-catalytic activity of In_2O_3-TNAs binary system is enhanced dramatically compared with that of pure TNAs.In addition,pyrolysis deposition is characterized by simple process,low costs,and advantageous to volume production and industrial production of photo-catalysts,providing a new concept for the deposition of metallic oxidant semi-conductors.
The pyrolysis method has been used for decomposing InCl_3so as to form In_2O_3,and depositing uniformly on the surface of Ti O_2nanotube(TNAs)which was prepared by anodic oxidation method,and the photo-catalytic activity of In_2O_3-TNAs was tested by the photo-catalytic degradation of Rodamine B(Rh B).The results show that after combined with In_2O_3,the photo-catalytic activity of In_2O_3-TNAs binary system is enhanced dramatically compared with that of pure TNAs.In addition,pyrolysis deposition is characterized by simple process,low costs,and advantageous to volume production and industrial production of photo-catalysts,providing a new concept for the deposition of metallic oxidant semi-conductors.
引文
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[3]Ahmed E R M,Rohani S.Modified TiO2nanotube arrays(TNTAs):progressive strategies towards visible light responsive photoanode:a review[J].Energy&Environmental Science,2011,4(4):1065-1086.
[4]Xiao Fangxing.Construction of highly ordered ZnO-TiO2,nanotube arrays(ZnO/TNTs)heterostructure for photocatalytic application[J].ACS Applied Materials&Interfaces,2012,4(12):7055-7063.
[5]Ge M,Cao C,Li S,et al.Enhanced photocatalytic performance of n-TiO2nanotubes by uniform creation of p-n heterjunctions with pBi2O3quantum dots[J].Nanoscale,2015,7(27):11552-11560.
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[7]Liu Qiang,Ding Dongyan,Ning Congqin,et al.Nonstoichiometric In2O3nanorods/black Ti-Ni-O nanotubes heterojunction photoanode for high-efficiency photoelectrochemical water splitting[J].Solar Energy Materials and Solar Cells,2016,145:382-390.
[8]Wei Na,Cui Hongzhi,Wang Xinzhen,et al.Hierarchical assembly of In2O3,nanoparticles on ZnO hollow nanotubes using carbon fibers as templates:Enhanced photocatalytic and gas-sensing properties[J].Journal of Colloid and Interface Science,2017,498:263-270.
[9]Wang Zeyan,Huang Baibiao,Dai Ying,et al.Highly photocatalytic ZnO/In2O3heteronanostructures synthesized by a coprecipitation method[J].Journal of Physical Chemistry C,2014,113(11):4612-4617.
[10]Yang Xia,Wang Yonghui,Xu Leilei,et al.Silver and indium oxide codoped TiO2nanocomposites with enhanced photocatalytic activity[J].Journal of Physical Chemistry C,2008,112(30):5448-5452.
[11]Mu Jingbo,Chen Bin,Zhang Mingyi,et al.Enhancement of the visible-light photocatalytic activity of In2O3-TiO2nanofiber heteroarchitectures[J].ACS Applied Materials&Interfaces,2012,4(1):424-430.
[12]Rodríguez-González V,Moreno-Rodríguez,May M,et al.Slurry photodegradation of 2,4-dichlorophenoxyacetic acid:A comparativestudy of impregnated and sol-gel In2O3-TiO2mixed oxide catalysts[J].Journal of Photochemistry&Photobiology A Chemistry,2008,193(2/3):266-270.
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