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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (17): 2009-2014. 上一篇    下一篇

研究论文

静止原位复合法制备聚吡咯/TiO2纸及其催化性能

张清爽，李巧玲*，陈海利，李建强   

  1. (中北大学理学院化学系 太原 030051)
  • 投稿日期:2010-10-24 修回日期:2011-04-29 发布日期:2011-05-19
  • 通讯作者: 李巧玲 E-mail:qiaolingl@163.com
  • 基金资助:

    山西省自然科学基金;山西省留学基金

Preparation and Photocatalytic Properties of PPy/TiO2 Paper via Unstirred in-situ Polymerization

ZHANG Qing-Shuang, LI Qiao-Ling, CHEN Hai-Li, LI Jian-Qiang   

  1. (Department of Chemistry, North University of China, Taiyuan 030051)
  • Received:2010-10-24 Revised:2011-04-29 Published:2011-05-19

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以滤纸为模板制备出类似纸状结构的二氧化钛光催化材料之后, 用吡咯对二氧化钛纸(TP)进行静止原位复合, 制备出修饰过的二氧化钛复合材料(PPy/TP). 利用红外光谱仪(FT-IR)、扫描电子显微镜(SEM)、X射线衍射仪(XRD)、紫外可见光谱仪等对催化剂进行了表征. 通过对甲基橙的降解, 考察了聚合反应时间及聚吡咯改性对TiO2光催化性能的影响. 结果表明: PPy/TP是由PPy改性过的二氧化钛带编制而成, 呈类似纸状的结构|经过改性后的二氧化钛纸降低了禁带宽度|在太阳光下, PPy/TP的催化活性明显比TP高, 其中聚合时间为40 min的PPy/TP复合物呈现最高催化效率.

关键词: 聚吡咯, 滤纸, 二氧化钛, 甲基橙, 太阳光

TiO2 paper (TP) photocatalysts were prepared using filter paper template. Then PPy/TP composites were synthesized via unstirred in-situ polymerization on TiO2 paper. The characterizations of the samples obtained under different conditions were characterized by FTIR, SEM, X-ray diffractometry, and UV-vis spectroscopy. By the methyl orange degradation, the effect of the polymerization time and PPy modification on the photocatalytic property of PPy/TP was investigated. The results indicated that PPy/TP was paper-like and composed of interwoven modified TiO2 microbelts|the shift of the absorption edge into the visible-light range with the narrowing of the band gap and the photocatalytic efficiency of PPy/TP was higher than that of TP|and PPy/TP-40 had the highest efficiency for the polymerization time of 40 min.

Key words: PPy, filter paper, titanium dioxide, methyl orange, sunlight

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