Influencing Factors on Synthesis of TiO2 Nanowires/Bi2 WO6 Composite Catalyst

ZHANG Hui; SUN Xiao-jun; WEI Jin-zhi; ZHANG Feng-ming

doi:10.15938/j.jhust.2016.04.013

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Influencing Factors on Synthesis of TiO2 Nanowires/Bi2 WO6 Composite Catalyst

更新时间：2026-08-31

- Influencing Factors on Synthesis of TiO2 Nanowires/Bi2 WO6 Composite Catalyst
- Vol. 21, Issue 4, Pages: 70-74(2016)
- 作者机构：
  
  哈尔滨理工大学化学与环境工程学院,绿色化工技术黑龙江省高校重点实验室,黑龙江,哈尔滨,150040
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2016.04.013
  CLC： TQ426.6
- Published：2016
- 稿件说明：
移动端阅览
ZHANG Hui, SUN Xiao-jun, WEI Jin-zhi, et al. Influencing Factors on Synthesis of TiO2 Nanowires/Bi2 WO6 Composite Catalyst[J]. 2016, 21(4): 70-74.
DOI：

ZHANG Hui, SUN Xiao-jun, WEI Jin-zhi, et al. Influencing Factors on Synthesis of TiO2 Nanowires/Bi2 WO6 Composite Catalyst[J]. 2016, 21(4): 70-74. DOI： 10.15938/j.jhust.2016.04.013.

摘要

为制备具有可见光响应的高效光催化剂，采用水热法制备了点一线型形貌的TiO2纳米线／Bi2WO6复合催化剂，考查了钛源、水热温度、溶剂、复合配比等制备因素对复合催化剂形貌的影响，并采用X射线衍射（XRD）、紫外-可见吸收光谱（UV—Vis）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）等方法进行表征．结果表明：采用钛酸丁酯制备的TiO2纳米线为锐钛矿相且结晶度良好；水热温度为180℃，溶剂为乙二醇，TiO2纳米线复合配比为50％（质量分数）时所制备的TiO2纳米线／Bi2W06复合催化剂点一线形貌最优；TiO2纳米线复合窄带隙半导体Bi2WO6明显拓宽了光谱响应范围，复合催化剂的禁带宽度达Eg=2．70eV．

Abstract

In order to fabricate high efficient photocatalyst with visible light response

TiO2 nanowires/Bi2WO6 composite catalysts with point-line structure were prepared by hydrothermal method. The composite catalysts were characterized by X-ray powder diffraction （XRD）

scanning electron microscope （SEM）

Transmission electron microscope （TEM） and UV-vis diffuse reflectance spectra （DRS）. The result indicates that titanium resource

hy- drothermal reaction temperature

solvent and the contents of TiO2nanowires are the important influencing factors for the formation of point-line structure. Anatase TiO2 nanowires prepared with butyl titanate as titanium resource pres- ent good crystallinity. 50% TiO2nanowires/Bi2WO6 composite catalysts show excellent point-line structure when the temperature of hydrothermal reaction is 180 ℃ with ethylene glycol as solvent

which present the improved absorption in the visible region due to coupling narrow-band-gap semiconductor Bi2 WO6

possessing gap energy of 2.70 eV.

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