用于增强光催化产氢活性的二维/一维硫化钼（MoS）纳米片/石墨相氮化碳（g-CN）中空纳米管光催化剂。
Two-dimensional/one-dimensional molybdenum sulfide (MoS) nanoflake/graphitic carbon nitride (g-CN) hollow nanotube photocatalyst for enhanced photocatalytic hydrogen production activity.
作者信息
Sun Jiwei, Yang Shaorui, Liang Zhangqian, Liu Xiang, Qiu Pengyuan, Cui Hongzhi, Tian Jian
机构信息
School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
出版信息
J Colloid Interface Sci. 2020 May 1;567:300-307. doi: 10.1016/j.jcis.2020.02.029. Epub 2020 Feb 10.
The graphitic carbon nitride (g-CN) hollow nanotubes synthesized via a simple freeze-drying method are used for constructing Two-dimensional (2D)-one-dimensional (1D) molybdenum sulfide (MoS) nanoflake/g-CN hollow nanotube (MoS/g-CN nanotube) photocatalysts. The MoS/g-CN nanotube composite with 15 wt% MoS shows the highest hydrogen (H) production rate (1124 μmol·h·g), much higher than bulk g-CN (64 μmol·h·g) and g-CN nanotubes (189 μmol·h·g). The excellent photocatalytic activity of MoS/g-CN nanotube composites can be ascribed to more exposed active edges of 2D-1D structure, multiple light reflection/scattering channels of 2D nanoflake/1D hollow nanotube composite structure and better carrier transfer and separation by heterojunction interface.
通过简单冷冻干燥法合成的石墨相氮化碳（g-CN）中空纳米管用于构建二维（2D）-一维（1D）硫化钼（MoS）纳米片/g-CN中空纳米管（MoS/g-CN纳米管）光催化剂。含15 wt% MoS的MoS/g-CN纳米管复合材料表现出最高的产氢速率（1124 μmol·h·g），远高于块状g-CN（64 μmol·h·g）和g-CN纳米管（189 μmol·h·g）。MoS/g-CN纳米管复合材料优异的光催化活性可归因于二维-一维结构中更多暴露的活性边缘、二维纳米片/一维中空纳米管复合结构的多重光反射/散射通道以及异质结界面更好的载流子转移和分离。
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