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酞菁锌改性介孔分子筛催化降解孔雀石绿

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陈伟, 毕程, 李婷婷, 郭晶. 酞菁锌改性介孔分子筛催化降解孔雀石绿[J]. 环境化学, 2012, 31(7): 1043-1048.
引用本文: 陈伟, 毕程, 李婷婷, 郭晶. 酞菁锌改性介孔分子筛催化降解孔雀石绿[J]. 环境化学, 2012, 31(7): 1043-1048.
shu
CHEN Wei, BI Cheng, LI Tingting, GUO Jing. Catalytic degradation of malachite green with modified mesoporous sieves by phthalocyanine zinc(Ⅱ)[J]. Environmental Chemistry, 2012, 31(7): 1043-1048.
Citation: CHEN Wei, BI Cheng, LI Tingting, GUO Jing. Catalytic degradation of malachite green with modified mesoporous sieves by phthalocyanine zinc(Ⅱ)[J]. Environmental Chemistry, 2012, 31(7): 1043-1048.
shu

酞菁锌改性介孔分子筛催化降解孔雀石绿

  • 1.

    齐齐哈尔大学化学与化学工程学院, 齐齐哈尔, 161006

  • 基金项目:

    黑龙江省自然科学基金重点项目(D200822)资助.

Catalytic degradation of malachite green with modified mesoporous sieves by phthalocyanine zinc(Ⅱ)

  • 1.

    College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China

  • Fund Project:

  • 摘要: 以介孔分子筛MCM-41为载体,采用浸渍法将1,4,8,11,15,18,22,25-八环戊氧基酞菁锌(α-CyOPcZn)负载到分子筛上得到了一种新型的催化剂CyOPcZn/MCM-41.并通过氮气吸附、红外光谱扫描及电镜扫描对催化剂的结构进行表征.考察了该催化剂的用量、H2O2浓度对孔雀石绿降解作用的影响.实验结果表明,在模拟可见光照射下,当催化剂用量0.6 g·L-1、H2O2浓度为0.1 mmol·L-1时,60 min后使0.1 mmol·L-1的孔雀石绿水溶液的脱色率达到98.6%,并呈现出一级反应的动力学特征,速率常数k为0.0891 min-1.催化剂重复使用3次后,脱色率可达96%以上.
    Abstract: A novel catalyst CyOPcZn/MCM-41 was synthesized with 1,4,8,11,15,18,22,25-octacyclopentyloxy phthalocyanine zinc(Ⅱ)(α-CyOPcZn) loaded on MCM-41 mesoporous sieves by impregnation wetness method. The catalyst was characterized by N2 adsorption, Fourier-transformed infrared spectrscopy (FT-IR) and scanning electron microscopy(SEM) techniques. The dosage of catalyst, concentration of hydrogen peroxide on the catalytic oxidation of malachite green were investigated. The results showed that under visible light irradiation, malachite green solution(0.1 mmol·L-1) was degraded by 98.6% after 60 mins, when the catalyst was 0.6 g·L-1, and hydrogen peroxide was 0.1 mmol·L-1. The degradation process obeys the first-order kinetic reaction with a rate constant of 0.0891 min-1. The activity of the catalyst remained above 96% after 3 repeated use.
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  • 收稿日期:  2011-10-08
陈伟, 毕程, 李婷婷, 郭晶. 酞菁锌改性介孔分子筛催化降解孔雀石绿[J]. 环境化学, 2012, 31(7): 1043-1048.
引用本文: 陈伟, 毕程, 李婷婷, 郭晶. 酞菁锌改性介孔分子筛催化降解孔雀石绿[J]. 环境化学, 2012, 31(7): 1043-1048.
shu
CHEN Wei, BI Cheng, LI Tingting, GUO Jing. Catalytic degradation of malachite green with modified mesoporous sieves by phthalocyanine zinc(Ⅱ)[J]. Environmental Chemistry, 2012, 31(7): 1043-1048.
Citation: CHEN Wei, BI Cheng, LI Tingting, GUO Jing. Catalytic degradation of malachite green with modified mesoporous sieves by phthalocyanine zinc(Ⅱ)[J]. Environmental Chemistry, 2012, 31(7): 1043-1048.
shu

酞菁锌改性介孔分子筛催化降解孔雀石绿

  • 1. 齐齐哈尔大学化学与化学工程学院, 齐齐哈尔, 161006
  • 收稿日期:  2011-10-08
基金项目:

黑龙江省自然科学基金重点项目(D200822)资助.

摘要: 以介孔分子筛MCM-41为载体,采用浸渍法将1,4,8,11,15,18,22,25-八环戊氧基酞菁锌(α-CyOPcZn)负载到分子筛上得到了一种新型的催化剂CyOPcZn/MCM-41.并通过氮气吸附、红外光谱扫描及电镜扫描对催化剂的结构进行表征.考察了该催化剂的用量、H2O2浓度对孔雀石绿降解作用的影响.实验结果表明,在模拟可见光照射下,当催化剂用量0.6 g·L-1、H2O2浓度为0.1 mmol·L-1时,60 min后使0.1 mmol·L-1的孔雀石绿水溶液的脱色率达到98.6%,并呈现出一级反应的动力学特征,速率常数k为0.0891 min-1.催化剂重复使用3次后,脱色率可达96%以上.

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