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SO2-4/TiO2光催化降解苯酚

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伍斌, 郑毅, 蔡忠刚, 田从学. SO2-4/TiO2光催化降解苯酚[J]. 环境工程学报, 2012, 6(6): 1880-1884.
引用本文: 伍斌, 郑毅, 蔡忠刚, 田从学. SO2-4/TiO2光催化降解苯酚[J]. 环境工程学报, 2012, 6(6): 1880-1884.
shu
Wu Bin, Zheng Yi, Cai Zhonggang, Tian Congxue. Photocatalytic degradation of phenol by SO2-4/TiO2[J]. Chinese Journal of Environmental Engineering, 2012, 6(6): 1880-1884.
Citation: Wu Bin, Zheng Yi, Cai Zhonggang, Tian Congxue. Photocatalytic degradation of phenol by SO2-4/TiO2[J]. Chinese Journal of Environmental Engineering, 2012, 6(6): 1880-1884.
shu

SO2-4/TiO2光催化降解苯酚

  • 1.

    攀枝花学院生物与化学工程学院，攀枝花 617000

  • 基金项目:

    国家自然科学基金资助项目(50804025)

  • 中图分类号: X703.1

Photocatalytic degradation of phenol by SO2-4/TiO2

  • 1.

    College of Biochemical and Chemical Engineering， Panzhihua University， Panzhihua 617000， China

  • Fund Project:

  • 摘要: 以工业硫酸氧钛为原料水解制得SO2-4/TiO2光催化剂，并以苯酚为目标降解物，考察了SO2-4/TiO2的光催化性能。结果表明：随着SO2-4/TiO2制备过程中焙烧温度的升高，其光催化活性逐渐增加，650℃焙烧获得的SO2-4/TiO2的光催化活性最好，此后再升高温度会因催化剂中硫的挥发而下降；在确定苯酚原液初始浓度为50 mg/L条件下，SO2-4/TiO2的光催化降解苯酚的最佳工艺条件为反应时间2 h、苯酚pH为7、催化剂用量1 g/L。XRD、SEM和FTIR的分析结果显示实验温度下制得的SO2-4/TiO2均为锐钛型TiO2；其间掺杂的SO2-4在TiO2表面分散性较好，没有聚集成大的颗粒；红外分析的结果初步判定低温（2-4在TiO2表面是螯合双配位吸附，高温焙烧时（>550℃）SO2-4在TiO2表面是桥式配位吸附。
    Abstract: The catalyst SO2-4/TiO2 was obtained by hydrolyzing industrial titanium sulphate， and its photocatalytic performances was examined for the degradation of phenol. Results indicated that the photocatalytic activity of SO2-4/TiO2， which calcined at 650 ℃， exhibited the best catalytic activity，with further increasing calcination temperature， the catalytic activity of phoyocatalyst decreased sharply as the SO2-4 volatilized. The optimum technological conditions for photocatalytic degradation of 50 mg/L phenol prefiltration solution were reaction time of 2 h， pH of 7， catalyst dosing quantity of 1 g/L. The catalyst SO2-4/TiO2 was characterized by means of XRD， SEM and FTIR， and the results showed that the Ti species in all tested catalysts were in the form of anatase structure， the doped SO2-4 had a uniform dispersion on TiO2 surface without aggregation in bulk. A preliminary judgement got from FTIR analysis was that the SO2-4， adsorbed in the surface of TiO2， calcined at low temperature (550℃).
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出版历程
  • 收稿日期:  2011-06-18
  • 刊出日期:  2012-07-05
伍斌, 郑毅, 蔡忠刚, 田从学. SO2-4/TiO2光催化降解苯酚[J]. 环境工程学报, 2012, 6(6): 1880-1884.
引用本文: 伍斌, 郑毅, 蔡忠刚, 田从学. SO2-4/TiO2光催化降解苯酚[J]. 环境工程学报, 2012, 6(6): 1880-1884.
shu
Wu Bin, Zheng Yi, Cai Zhonggang, Tian Congxue. Photocatalytic degradation of phenol by SO2-4/TiO2[J]. Chinese Journal of Environmental Engineering, 2012, 6(6): 1880-1884.
Citation: Wu Bin, Zheng Yi, Cai Zhonggang, Tian Congxue. Photocatalytic degradation of phenol by SO2-4/TiO2[J]. Chinese Journal of Environmental Engineering, 2012, 6(6): 1880-1884.
shu

SO2-4/TiO2光催化降解苯酚

  • 1. 攀枝花学院生物与化学工程学院，攀枝花 617000
  • 收稿日期:  2011-06-18
基金项目:

国家自然科学基金资助项目(50804025)

摘要: 以工业硫酸氧钛为原料水解制得SO2-4/TiO2光催化剂，并以苯酚为目标降解物，考察了SO2-4/TiO2的光催化性能。结果表明：随着SO2-4/TiO2制备过程中焙烧温度的升高，其光催化活性逐渐增加，650℃焙烧获得的SO2-4/TiO2的光催化活性最好，此后再升高温度会因催化剂中硫的挥发而下降；在确定苯酚原液初始浓度为50 mg/L条件下，SO2-4/TiO2的光催化降解苯酚的最佳工艺条件为反应时间2 h、苯酚pH为7、催化剂用量1 g/L。XRD、SEM和FTIR的分析结果显示实验温度下制得的SO2-4/TiO2均为锐钛型TiO2；其间掺杂的SO2-4在TiO2表面分散性较好，没有聚集成大的颗粒；红外分析的结果初步判定低温（2-4在TiO2表面是螯合双配位吸附，高温焙烧时（>550℃）SO2-4在TiO2表面是桥式配位吸附。

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