化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (4) : 196-201. DOI: 10.19817/j.cnki.issn1006-3536.2022.04.040

科学研究

花球状MoS₂/g-C₃N₄的制备及活化过硫酸盐对孔雀石绿的降解

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作者信息 +

Preparation of flower-globed MoS₂/g-C₃N₄ and degradation of malachite green by activated persulfate

Gao Min¹, Li Simin¹, Zhu Jia²

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Received		Published
2020-12-28		2022-04-20
Issue Date	Revised Date
2022-04-29	2020-12-28

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摘要

采用水热法制备纳米MoS₂/g-C₃N₄催化剂并对催化剂样品进行优化及表征。表征结果表明,制备出了MoS₂/g-C₃N₄催化剂,催化剂形貌呈花球状,粒径约为2—3μm,片层边缘结构清晰可见。催化实验表明纳米MoS₂/g-C₃N₄催化剂对孔雀石绿活化硫酸盐催化降解具有明显效果。在pH=4.67,孔雀石绿溶液浓度20mg/L,催化剂用量1.0g/L时,30min内孔雀石绿溶液的去除率可达99.89%,且催化剂表现出良好的稳定性与可重复使用性,在该反应体系中SO₄·^-与·OH发挥了主要作用。

Abstract

Nano-MoS₂/g-C₃N₄ was prepared by hydrothermal method,and the catalyst samples were optimized and characterized.The characterization results showed that MoS₂/g-C₃N₄ catalyst was successfully prepared.The morphology of the catalyst was flower spherical,the particle size was about 2—3μm,and the lamellae structure was clearly visible.The catalytic experiments showed that the nano-MoS₂/g-C₃N₄ had obvious effect on the catalytic degradation of malachite green.At pH=4.67,the concentration of malachite green solution was 20mg/L and the dosage of catalyst was 1.0g/L,the removal rate of malachite green solution within 30min could reach 99.89%.Moreover,the catalyst showed good stability and reusability,and SO₄·^- and ·OH played a major role in the reaction system.

关键词

二氧化钼 / 石墨相氮化碳 / 孔雀石绿 / 过硫酸盐高级氧化

Key words

MoS₂ / g-C₃N₄ / malachite green / persulfate advanced oxidation

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花球状MoS₂/g-C₃N₄的制备及活化过硫酸盐对孔雀石绿的降解[J]. 化工新型材料, 2022, 50(4): 196-201 DOI:10.19817/j.cnki.issn1006-3536.2022.04.040

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