Research progress of the visible light degradation of organic pollutants over molybdenum disulfide-based heterojunction catalysts
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摘要:
光催化是近年来迅速发展的、利用太阳能进行能源转化和环境净化的新技术。二硫化钼具有层状结构，是过渡金属硫族化合物的代表，因具有带隙窄、活性位点多、比表面积大的优点而成为良好的助催化剂，广泛应用于光催化降解有机污染物。介绍了国内外不同类型二硫化钼基异质结催化剂（金属氧化物、铋基材料、银基材料、金属硫化物、石墨氮化碳、氧化石墨烯）的研究现状，对比了二硫化钼基异质结催化剂的制备方式及光催化降解有机污染物的效果，并简述其降解机理。结果表明，二硫化钼的耦合作用可以有效提高基质材料的光催化活性。今后研究将继续围绕开发高效、高稳定性和可回收的二硫化钼基异质结催化剂来展开。
Abstract:Photocatalysis is a new technology developed rapidly in recent years, which uses solar energy for energy conversion and environmental purification. Molybdenum disulfide has a layered structure and is the representative of transition metal chalcogenides. It has become a good catalyst because of its narrow band gap, many active sites and large specific surface area, and is widely used in the photocatalytic degradation of organic pollutants. The domestic and international research status of different types of molybdenum disulfide-based heterojunction catalysts (metal oxides, bismuth-based materials, silver-based materials, metal sulfides, graphite carbon nitride, graphene oxide) were introduced. The preparation methods and photocatalytic degradation effects of organic pollutants of molybdenum disulfide-based heterojunction catalysts were compared, and their degradation mechanisms were briefly described. The results showed that the coupling effect of molybdenum disulfide could effectively improve the photocatalytic activity of matrix materials. Future research should continue to focus on the development of high efficient, stable and recyclable molybdenum disulfide-based heterojunction catalysts.
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Key words:
- molybdenum disulfide /
- heterojunction /
- photocatalyst /
- photodegradation /
- organic pollutants
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表 1 MoS2/金属氧化物异质结材料性能
Table 1. Properties of MoS2/metal oxide heterojunction materials
催化剂 形态结构特征 制备方法 反应条件 污染物 降解率/% MoS2/TiO2[23] 超薄MoS2纳米片、
TiO2纳米管水热法 500 W氙灯，180 min 罗丹明B
亚甲基蓝76.33
100MoS2/TiO2[25] 中空介孔纳米球状 模板法、水热法 300 W氙灯，100 min 罗丹明B 89 N-TiO2-x@MoS2[26] 花球状核壳结构 水热法、原位固相
化学还原法300 W氙灯，120 min 甲基橙 91.8 MoS2/ZnO[27] 纳米球状 水热法 300 W氙灯，180 min 亚甲基蓝 88 MoS2/ZnO[28] MoS2量子点、ZnO纳米球 水热法 自然光，90 min 罗丹明B 100 N-ZnO/MoS2[29] MoS2纳米花、N-ZnO纳米棒 水热法 可见光，180 min 盐酸四环素 84 Cu2O/MoS2[30] Cu2O立方体、Cu2O八面体 化学剥离法、
溶胶凝胶法300 W氙灯，120 min 茶碱 90~100 Cu2O/MoS2/rGO[31] Cu2O立方体、
花状MoS2/rGO水热法、
溶胶凝胶法可见光，90 min 酸性蓝92染料 85~95 g-C3N4/WO3/MoS2[32] WO3纳米片、多孔层状g-C3N4、花状MoS2 煅烧法、水热法
浸渍法300 W氙灯，染料60 min
有机溶液120 min罗丹明B甲基橙亚甲基蓝AO7溶液
双酚A阿特拉津2-氯酚10085~9580~8595~100
324628WO3@MoS2/Ag[33] 空心管 水热法 500 W氙灯，120 min 双酚A 92.51 MoO3@MoS2[34] 多孔核壳纳米棒 水热法 300 W氙灯，120 min 罗丹明B 85~95 
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表 2 MoS2/Bi基异质结材料性能
Table 2. Properties of MoS2/Bi-based heterojunction materials
催化剂 形态特征 制备方法 反应条件 污染物 降解率/% MoS2/BiOI[35] 花球状 水热法 500 W氙灯，90 min 罗丹明B 100 BiOI/MoS2[36] 三维纳米花状 溶剂热法 可见光，75 min 甲基橙
盐酸四环素95.6
91.5MoS2/BiOCl[37] 球状 水热法 可见光，21 min 罗丹明B 98.6 MoS2/BiOCl[38] 二维片状 超声辅助法 150 W氙灯，50 min 罗丹明B 100 MoS2/BiOBr[39] 球状 溶剂热法 300 W氙灯，50 min 罗丹明B 94 MoS2/BiOBr[40] 多层空心微球状 微波辅助水热法 300 W氙灯，360 min 环丙沙星 87 MoS2/BiOBr[41] 纳米花状 机械球磨法 可见光，120 min 盐酸四环素 68 MoS2/BiPO4[42] 纳米棒 水热法 太阳光，70 min 亮绿色染料 80 BiPO4-MoS2/GO[43] 纳米片 微波辅助水热法 125 W汞灯，90 min 罗丹明B Bi2S3@MoS2[44] 三维球状 水热法 300 W氙灯，40 min 罗丹明B
亚甲基蓝92 Bi2S3/MoS2[45] 花球状 微波辅助水热法 350 W氙灯，60 min 亚甲基蓝 96 Bi2S3/MoS2/Bi2MoO6[46] Bi2MoO6纳米片、MoS2
纳米片、Bi2S3纳米线阴离子交换法 300 W氙灯，60 min 罗丹明B 99.5 Bi2O3/Bi2S3/MoS2[47] 纳米板状 水热法 300 W氙灯 亚甲基蓝 90 BiVO4/Bi2S3/MoS2[48] 四方枕头状 水热法 自然光，360 min 罗丹明B亚甲基蓝
孔雀石绿9793
94
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表 3 MoS2/Ag基异质结材料性能
Table 3. Properties of MoS2/Ag-based heterojunction materials
催化剂 形态特征 制备方法 反应条件 污染物 降解率/% Ag2MoO4/Ag2S/MoS2[49] Ag2MoO4不规则菱形多面体、
Ag2S球形纳米粒子、花球状MoS2水热法 300 W氙灯，15、100 min 罗丹明B
盐酸四环素93.9
42.8Ag2S/Ag@MoS2[55] MoS2纳米片 水热法 300 W氙灯，50 min 亚甲基蓝 96.2 Ag2S/Fe3O4/MoS2[51] 针状球体 溶剂热法 300 W氙灯，120 min 罗丹明B 73.3 MoS2/Ag3PO4[52] 不对称Ag3PO4多面体、超薄MoS2纳米片 微波辅助水热法 300 W汞灯，40 min 盐酸四环素 80.5 Ag3PO4/MoS2[53] 球形Ag3PO4纳米颗粒、MoS2纳米片 湿化学法 60 W光源，15 min 亚甲基蓝 97.6 CC@MoS2-Ag3PO4[54] 花状MoS2、碳纳米管、Ag3PO4纳米颗粒 水热法 300 W氙灯，80 min 罗丹明B 96
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表 4 MoS2/金属硫化物异质结材料性能
Table 4. Properties of MoS2/metal sulfide heterojunction materials
催化剂 形态特征 制备方法 反应条件 污染物 降解率/% Cu2S/MoS2[55] 花球状 水热法 500 W氙灯，75 min 亚甲基蓝 95~100 Cu2S/MoS2[56] 纳米针状 水热法 光电管，30 min 苯酚 90 MoS2/Cu2S[57] 雪花状 水热法 300 W氙灯，60 min 甲基橙 72.8 MoS2/ZnS[58] 层状纳米片 水热法 可见光，32 min 亚甲基蓝 99.89 MoS2/ZnS[59] 多孔层状 水热法 氙灯，40 min 结晶紫 100 rGO/ZnS-MoS2[60] 不规则纳米球状ZnS、
三维分级球花状MoS2溶剂热法 300 W氙灯，180 min 2-NP 90.57 MoS2/ZnS@NSC[61] 球形ZnS 水热法、煅烧法 90 min 三氯杀螨醇 84.5 MoS2/CdS[62] 超薄MoS2 溶剂热法 350 W氙灯，60 min 甲基橙 90~100 C3N4/CdS/MoS2[63] 多孔三明治 水热法、煅烧法 300 W氙灯，45 min 罗丹明B 90~100 O-MoS2/CdS/g-C3N4[64] 球状 煅烧法 可见光，180 min 双酚A 95.2 MoS2/CdS/TiO2/CNFs[65] 纳米纤维 静电纺丝法、
热处理法太阳光，15 min 亚甲基蓝 100 Mt@MoS2/CdS[66] 二维纳米片Mt 水热法 300 W氙灯，45 min 罗丹明B 98.8
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