| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Removal of Malachite Green by Iron-containing Nanofiber Electrode |
| CHEN Yiping*, ZHENG Chaohong, WANG Yusheng, SU Weiwei
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| College of Resources and Environment in Quanzhou Normal University, Quanzhou 362000, Fujian, China |
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Abstract As a kind of typical triphenylmethane dye, malachite green is difficult to be degraded, and is harmful to ecological environment and human beings. Therefore, the removal of malachite green in water cannot be ignored. In this work, high-performance iron-containing nanofibers were prepared via loading iron nanoparticles onto highly fluffy PVA nanofibers by electrospinning and liquid-phase reduction method. Then the three-dimensional electrode system was constructed using iron-containing nanofibers as the third-dimensional electrode and the removal of malachite green in the three-dimensional electrode system was investigated. The results showed that the iron-containing nanofibers had a good adsorption effect on malachite green in water, and the adsorption behavior followed the pseudo-second-order kinetic model. In the three-dimensional electrode system, the malachite green molecules could be enriched on the surface of iron-containing nanofibers by adsorption, and then the degradation of malachite green and the regeneration of activity sites on iron-containing nanofibers were simultaneously realized by subsequent three-dimensional electrolysis. After pre-adsorption and electrolysis for 40 min, the removal rate of malachite green in water reached 95%, and the reaction system showed strong pH tolerance.
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Published:
Online: 2024-10-12
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| Fund:This work was financially supported by the Natural Science Foundation of Fujian Province,China (2021J01974),Key NSF Grants of Fujian Province (2019N0015),the National Natural Science Foundation of China (22006091). |
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2024, Vol. 38 
