Novel heterogeneous photocatalysts prepared with waste wool and Fe3+ or Cu2+ ions for degradation of CI Reactive Red 195: a comparative study

作者：Cui, Guixin; Dong, Yongchun^*; Li, Yingchao; Shen, Weifeng; Chen, Zhenlei

来源：Coloration Technology, 2017, 133(3): 200-208.

DOI：10.1111/cote.12268

• PAN FIBROUS CATALYST
• FENTON OXIDATION
• CARBON-MONOXIDE
• FIBER COMPLEX
• ORGANIC-DYE
• METAL-IONS
• PH
• WATER
• PEROXIDE
• REMOVAL

In order to reuse waste wool, two transition metal ions, Fe3+ and Cu2+, were coordinated to with it to prepare a series of metal-wool complexes as new heterogeneous Fenton photocatalysts for the degradation of a typical azo dye, CI Reactive Red 195, in aqueous solution. The effect of the initial metal ion concentration and temperature on the reaction was investigated. Furthermore, the catalytic performance of the resulting metal-wool complexes was evaluated with respect to the dye decoloration efficiency at different pH levels under visible irradiation. The results demonstrated that increasing the initial metal ion concentration and temperature enhanced ion coordination to produce complexes of increased metal content. The obtained Fe-wool showed a higher metal content than the Cu-wool. The light adsorption performance in the UV and visible regions of Cu-Fe-wool is stronger than that of Fe-wool or Cu-wool. Furthermore, Cu-Fe-Wool was found to have a higher catalytic activity than the other two complexes under visible irradiation, especially in the alkaline pH range.

• 出版日期2017-6
• 单位天津工业大学; 中国纺织科学研究院