Heterogeneous photo-Fenton degradation of methylene blue under visible irradiation by iron tetrasulphophthalocyanine immobilized layered double hydroxide at circumneutral pH
Heterogeneous photo-Fenton degradation of methylene blue under visible irradiation by iron tetrasulphophthalocyanine immobilized layered double hydroxide at circumneutral pH
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四磺酞菁铁固定层状双氢氧化物在可见光照射下非均相光芬顿降解亚甲基蓝在中性pH条件下
DOI：
10.1016/j.dyepig.2016.07.026
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发表时间：
2016-11
影响因子：
4.5
通讯作者：
Yun Liu
中科院分区：
文献类型：
--
作者：
Xiaoxiao Tang;Yun Liu
指出了光Fenton法的主要缺点是pH范围限制严格、可见光利用率低和催化剂分离困难。为了克服这些局限性，四硫代酞菁铁固定化层状双氢氧化物的合成和测试作为非均相催化剂的可见光光Fenton降解亚甲基蓝在这项工作中。所有样品均通过各种技术进行了充分表征。结果表明，四硫代酞菁铁成功地负载于水滑石上，所得催化剂具有较高的光催化活性。采用响应面法研究了各因素对亚甲基蓝降解的影响，并确定了最佳工艺条件。在最佳工艺条件下，亚甲基蓝脱色率和总有机碳去除率分别为99.80%和76.50%。此外，催化剂经3次循环后，其光催化活性基本保持不变。最后，提出了降解亚甲基蓝的可能反应机理。
The strict pH range limits, low visible light utilization and difficulty in separation of catalyst are outlined as the major drawbacks of photo-Fenton process. To overcome these limitations, the iron tetrasulphophthalocyanine immobilized layered double hydroxides was synthesized and tested as heterogeneous catalyst for the visible light photo-Fenton degradation of methylene blue in this work. All samples were fully characterized by various techniques. From the results, iron tetrasulphophthalocyanine was loaded on layered double hydroxides successfully and the obtained catalyst exhibited high photocatalytic activity. Response surface methodology was employed to investigate the effects of variables and optimum conditions on degradation of methylene blue. Under optimum conditions, the methylene blue decolorization and total organic carbon removal efficiencies were 99.80% and 76.50%, respectively. In addition, the photocatalytic activity of obtained catalyst was basically kept after three cycles. Finally, the possible reaction mechanisms for the degradation of methylene blue were proposed.
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影响因子：
22.1
作者：
Yang Li;Yin Xu;Xiao-ying Chen;Fei Ge;Runliang Zhu
通讯作者：
Yang Li;Yin Xu;Xiao-ying Chen;Fei Ge;Runliang Zhu
影响因子：
5.2
作者：
Pavan, PC;Gomes, GD;Valim, JB
通讯作者：
Valim, JB
影响因子：
13.6
作者：
M. A. Zanjanchi;A. Ebrahimian;M. Arvand
通讯作者：
M. A. Zanjanchi;A. Ebrahimian;M. Arvand
影响因子：
--
作者：
Youwen You;Hongting Zhao;G. Vance
通讯作者：
Youwen You;Hongting Zhao;G. Vance
影响因子：
13.6
作者：
Manuela Ramos Silva;M. Calvete;N.P.F. Goncalves;Hugh D. Burrows;M. Sarakha;Aline Fernandes;Maria Filip
通讯作者：
Manuela Ramos Silva;M. Calvete;N.P.F. Goncalves;Hugh D. Burrows;M. Sarakha;Aline Fernandes;Maria Filip