二硫化钼/石墨相氮化碳光催化降解印染废水研究

doi:10.19677/j.issn.1004-7964.2023.03.003

皮革科学与工程 ›› 2023, Vol. 33 ›› Issue (3): 12-18.doi: 10.19677/j.issn.1004-7964.2023.03.003

二硫化钼/石墨相氮化碳光催化降解印染废水研究

卜义夫¹, 刘思乐^1,*, 杜文娟², 田川¹, 王思祺¹, 万帅龙¹

1.沈阳科技学院,辽宁沈阳 110167;
2.山东飞洋环境工程有限公司,山东济南 250000

收稿日期:2022-09-16 出版日期:2023-06-01 上线日期:2023-05-17
通讯作者: *刘思乐（1986-）,女,副教授,主要从事为先进能源技术、资源综合利用以及化工过程的开发与强化工作。E-mail： sl.0117@163.com。
作者简介:卜义夫（2001-）,男,本科生,主要从事石墨相氮化物的制备与改性工作。E-mail：byf20010210@163.com。
基金资助:
国家级大学生创新创业训练计划项目(202213621001); 辽宁省教育厅2022年高等学校基本科研项目面上项目（LJKM20221989）; 沈阳科技学院科学研究重点项目(ZD-2023-01); 沈阳科技学院化学工程与工艺一流专业建设项目

Study on Photocatalytic Degradation of Printing and Dyeing Wastewater by Molybdenum Disulfide/graphite Carbon Nitride

BU Yifu¹, LIU Sile^1,*, DU Wenjuan², TIAN Chuan¹, WANG Siqi¹, WAN Shuailong¹

1. Shenyang Institute of Science and Technology, Shenyang 110167, China;
2. Shandong Feiyang Environmental Engineering Limited Company, Jinan 250000, China

Received:2022-09-16 Published:2023-06-01 Online:2023-05-17

摘要/Abstract

摘要： 通过浸渍法和煅烧法相结合制备二硫化钼/石墨相氮化碳(MoS₂/g-C₃N₄)催化剂。采用X射线衍射、扫描电镜、透射电镜、紫外可见漫反射光谱、稳态荧光光谱等手段对MoS₂/g-C₃N₄催化剂的晶型、形貌、光电化学性质进行了表征,并将MoS₂/g-C₃N₄催化剂应用于印染废水的处理。结果表明：MoS₂/g-C₃N₄催化剂呈现多孔的层状结构,对可见光有着较好的响应;在MoS₂/g-C₃N₄用量2.0 g/L、pH=6、反应时间120 min的光照条件下,MoS₂/g-C₃N₄催化剂对印染废水的色度去除率和化学需氧量（COD）去除率最高,分别为89.78%和65.57%,MoS₂/g-C₃N₄催化剂循环使用5次后对印染废水的色度去除率和COD去除率仍达到了77.28%和53.26%,具有良好的稳定性。

关键词: 催化剂, 光催化, 印染废水, 层状多孔

Abstract: The MoS₂/g-C₃N₄ catalyst was prepared by using the impregnation and calcination methods. Its crystal form, morphology and photoelectrochemical properties were characterized by using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, ultraviolet-visible diffuse reflectance spectroscopy, steady fluorescence spectrum, respectively. The MoS₂/g-C₃N₄ catalyst was applied to the treatment of printing and dyeing wastewater. The results showed that the MoS₂/g-C₃N₄ catalyst had a porous layered structure and good response to visible light. Under the illumination conditions with its dosage of 2.0 g/L, pH=6 and the reaction time of 120 min, the MoS₂/g-C₃N₄ catalyst had the highest chroma and chemical oxygen demand (COD) removal rates for printing and dyeing wastewater, which are 89.78% and 65.57%, respectively. After the MoS₂/g-C₃N₄ catalyst was recycled for 5 times, the chroma and COD removal rates of printing and dyeing wastewater still reached 77.28% and 53.26%, respectively, indicating its good stability.

Key words: catalyst, photocatalysis, printing and dyeing wastewater, layered porous

中图分类号:

TS199

卜义夫, 刘思乐, 杜文娟, 田川, 王思祺, 万帅龙. 二硫化钼/石墨相氮化碳光催化降解印染废水研究[J]. 皮革科学与工程, 2023, 33(3): 12-18.

BU Yifu, LIU Sile, DU Wenjuan, TIAN Chuan, WANG Siqi, WAN Shuailong. Study on Photocatalytic Degradation of Printing and Dyeing Wastewater by Molybdenum Disulfide/graphite Carbon Nitride[J]. Leather Science and Engineering, 2023, 33(3): 12-18.

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二硫化钼/石墨相氮化碳光催化降解印染废水研究

Study on Photocatalytic Degradation of Printing and Dyeing Wastewater by Molybdenum Disulfide/graphite Carbon Nitride

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