江汉大学学报(自然科学版) ›› 2014, Vol. 42 ›› Issue (6): 15-20.

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聚吡咯- 氧化亚铜复合物可见光催化降解甲基橙的研究

彭望明,朱秀云   

  1. 江汉大学化学与环境工程学院,湖北 武汉 430056
  • 出版日期:2014-12-25 发布日期:2014-12-26
  • 作者简介:彭望明(1965—),男,副教授,硕士,研究方向:精细化学品合成及半导体光催化。
  • 基金资助:
    湖北省教育厅科学技术研究项目(B 2013145);光电化学材料与器件省部共建教育部重点实验室开放课题(JDGD-2013- 14)

Visible Photocatalytic Degradation of Methyl Orange Catalized with Polypyrrole - Cuprous Oxide Composites

PENG Wangming,ZHU Xiuyun   

  1. School of Chemistry and Environmental Engineering ,Jianghan University,Wuhan 430056,Hubei,China
  • Online:2014-12-25 Published:2014-12-26

摘要: 在超声条件下以葡萄糖和硫酸铜为原料制备氧化亚铜,并以三氯化铁为氧化剂,使吡咯在氧化亚铜表面进行原位聚合法制备聚吡咯-氧化亚铜复合物。在可见光照射下,以制备的复合物为催化剂降解甲基橙水溶液,研究了复合物用量、甲基橙初始浓度、光照时间及溶液pH值等因素对降解率的影响。研究结果表明,当复合物用量为0. 10g 、甲基橙初始浓度为20mg/L、光照时间为2h 、溶液pH值为9 ~ 10时,甲基橙的降解率达到95. 23% 。复合材料的IR图谱在3 433 . 36、3 319 . 55、3 003 ~3 077 及1 655 . 15cm-1出现了吡咯的特征吸收,与文献报道结果一致。

关键词: 聚吡咯(PPy), 氧化亚铜(Cu2 O), 复合物, 可见光, 降解, 甲基橙

Abstract: Cuprous oxide was prepared with copper sulfate and glucose under ultrasonic condition ,the polypyrrole - cuprous oxide composites were synthesized by using in-situ polymerization of pyrrole and cuprous oxide with ferric chloride as oxidant. Some factors that influenced the degradation of methyl orange catalized with polypyrrole - cuprous oxide composites were studied. The results indicated that the photocatalytic degradation rate of methyl orange was up to 95. 23% when the composites amount was 0.10g,the methyl orange initial concentration was 20mg/L,the illumination time was 2h,the solution pH of methyl orange solution was 9 to 10. The infrared spectra showed the characteristic absorption peak of polypyrrole were at 3433.36、3319.55、3003~3077 and 1655.15cm-1,which is consistent with reports.

Key words: polypyrrole(PPy) , cuprous oxide(Cu2O) , composites , visible light , photodegradation , methyl orange

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