混晶TiO_2微纳米管的制备及其对亚甲基蓝染料的光催化降解性能研究
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摘要
以偕胺肟纤维为模板纤维,通过优化TiCl4浓度、煅烧温度和煅烧时间制备了混晶TiO_2微纳米管,并考察了其对亚甲基蓝的光催化降解性能。结果表明,制备的混晶TiO_2微纳米管中含有锐钛矿和金红石两种晶相。其最佳制备条件:TiCl4摩尔浓度为0.022mol/L、煅烧温度为600℃、煅烧时间为30min。混晶TiO_2微纳米管对亚甲基蓝具有较好的光催化降解性能,太阳光源下降解5h,降解率可达89.44%。
Mixed-phase TiO_2 micronanotube was prepared through optimizing TiCl4 concentration,calcination temperature and calcination time base on amidoxime fiber.The photocatalytic activity for degradation of methylene blue was investigated.Results showed that the mixed-phase TiO_2 micronanotube consisted of anatase and rutile phases.The best preparation conditions were TiCl4 molar concentration of 0.022mol/L,calcination temperature of 600℃and calcination time of 30 min.The mixed-phase TiO_2 micronanotube had photocatalytic activity for degradation of methylene blue.Under solar light,the final degradation efficiency achieved 89.44% after 5h.
Mixed-phase TiO_2 micronanotube was prepared through optimizing TiCl4 concentration,calcination temperature and calcination time base on amidoxime fiber.The photocatalytic activity for degradation of methylene blue was investigated.Results showed that the mixed-phase TiO_2 micronanotube consisted of anatase and rutile phases.The best preparation conditions were TiCl4 molar concentration of 0.022mol/L,calcination temperature of 600℃and calcination time of 30 min.The mixed-phase TiO_2 micronanotube had photocatalytic activity for degradation of methylene blue.Under solar light,the final degradation efficiency achieved 89.44% after 5h.
引文
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[2]PFAFF G,REYNDERS P.Angle-dependent optical effects deriving from submicron structures of films and pigments[J].Chemical Reviews,1999,99(7):1963-1982.
[3]SALVADOR A,PASCUAL MARTI M C,ADELL J R,et al.Analytical methodologies for atomic spectrometric determination of metallic oxides in UV sunscreen creams[J].Journal of Pharmaceutical&Biomedical Analysis,2000,22(2):301-306.
[4]PENG L,MENDELSOHN A D,LATEMPA T J,et al.Longterm small molecule and protein elution from TiO2 nanotubes[J].Nano Letters,2009,9(5):1932-1936.
[5]LIAO Jianjun,LIN Shiwei,ZHANG Li,et al.Photocatalytic degradation of methyl orange using a TiO2/Ti mesh electrode with 3Dnanotube arrays[J].ACS Applied Materials&Interfaces,2012,4(1):171-177.
[6]DESAI U V,XU Chengkun,WU Jiamin,et al.Hybrid TiO2-SnO2nanotube arrays for dye-sensitized solar cells[J].Journal of Physical Chemistry C,2013,117(7):3232-3239.
[7]WU Liangpeng,LI Juan,ZHANG Shaohong,et al.Effect of ordered TiO2 nanotube array substrate on photocatalytic performance of CdS-sensitized ZnO nanorod arrays[J].Journal of Physical Chemistry C,2013,117(44):22591-22597.
[8]PARAMASIVAM I,JHA H,LIU Ning,et al.A review of photocatalysis using self-organized TiO2 nanotubes and other ordered oxide nanostructures[J].Small,2012,8(20):3073-3103.
[9]LINSEBIGLER A L,LU Guangquan,YATES J T.Photocatalysis on TiO2surfaces:principles,mechanisms,and selected results[J].Chemical Reviews,1995,95(3):735-758.
[10]张静,杨忆新,马军,等.CoOx-TiO2催化臭氧氧化草酸的研究[J].中国环境科学,2014,34(6):1457-1462.
[11]唐建军,邹原.TiO2-Fe3+可见光催化H2O2降解阿特拉津的协同效应[J].环境科学学报,2013,33(3):736-741.
[12]ROY P,BERGER S,SCHMUKI P.TiO2nanotubes:synthesis and applications[J].Angewandte Chemie International Edition,2011,50(13):2904-2939.
[13]DONG Pengyu,WANG Yuhua,LIU Bin,et al.Effect of hydrothermal reaction time on morphology and photocatalytic activity of H2Ti3O7nanotubes obtained via a rapid synthesis route[J].Applied Surface Science,2012,258(18):7052-7058.
[14]LI Jianming,WAN Wang,ZHU Feng,et al.Nanotube-based hierarchical titanate microspheres:an improved anode structure for Li-ion batteries[J].Chemical Communications,2012,48(3):389-391.
[15]ZHANG Zhaoyang,CHEN Niancao,LI Shihui,et al.Programmable hydrogels for controlled cell catch and release using hybridized aptamers and complementary sequences[J].Journal of the American Chemical Society,2012,134(38):15716-15719.
[16]HU Yunhang.A highly efficient photocatalyst-hydrogenated black TiO2for the photocatalytic splitting of water[J].Angewandte Chemie International Edition,2012,51(50):12410-12412.
[17]XIONG Zhigang,ZHAO Xiusong.Nitrogen-doped titanate-anatase core-shell nanobelts with exposed{101}anatase facets and enhanced visible light photocatalytic activity[J].Journal of the American Chemical Society,2012,134(13):5754-5757.
[18]许珂敬,杨新春,李正民.离子掺杂对纳米TiO2薄膜光催化性能的影响[J].中国有色金属学报,2006,16(5):847-852.
[19]胡蕾,叶芝祥,徐成华,等.氮掺杂TiO2介孔光催化剂降解腐殖酸的研究[J].中国环境科学,2011,31(增刊):35-38.
[20]MROWETZ M,BALCERSKI W,COLUSSI A J,et al.Oxidative power of nitrogen-doped TiO2 photocatalysts under visible illumination[J].Journal of Physical Chemistry B,2004,108(45):17269-17273.
[21]张晓,解英娟,马佩军,等.物理混合法制备分级混晶TiO2微纳米材料及其光催化性能[J].高等学校化学学报,2015,36(10):1977-1983.
[22]SHI Fuzhi,LI Yaogang,ZHANG Qinghong,et al.Preparation of core/shell structured rutile/anatase photocatalyst via vapor phase hydrolysis and its photocatalytic degradation of phenol and methylene blue[J].Journal of the American Ceramic Society,2012,95(6):1927-1932.
[23]YE Meidan,ZHENE Dajiang,LV Miaoqiang,et al.Hierarchically structured nanotubes for highly efficient dye-sensitized solar cells[J].Advanced Materials,2013,25(22):3039-3044.
[24]解英娟,吴志娇,张晓,等.混晶TiO2光催化剂的制备及机理研究[J].化学进展,2014,26(7):1120-1131.
[25]SU Ren,BECHSTEIN R,SL,et al.How the anatase-to-rutile ratio influences the photoreactivity of TiO2[J].Journal of Physical Chemistry C,2011,115(49):24287-24292.
[26]SHEN Junyao,WANG Hai,ZHOU Yu,et al.Anatase/rutile TiO2nanocomposite microspheres with hierarchically porous structures for high-performance lithium-ion batteries[J].Royal Society of Chemistry Advances,2012,2(24):9173-9178.
[27]章丹,徐斌,朱培娟,等.TiO2光催化降解亚甲基蓝机理的研究[J].华东师范大学学报,2013,45(5):35-42.
[28]陶庭先,吴之传,赵择卿.螯合纤维的制备——聚丙烯腈纤维改性[J].合成纤维,2001,30(4):32-33.
[29]高玲,张国玉,苏拾,等.基于全光谱输出太阳模拟器氙灯光源的研究[J].长春理工大学学报,2012,35(2):82-84.