Two-dimensional/one-dimensional molybdenum sulfide (MoS2) nanoflake/graphitic carbon nitride (g-C3N4) hollow nanotube photocatalyst for enhanced photocatalytic hydrogen production activity
Two-dimensional/one-dimensional molybdenum sulfide (MoS2) nanoflake/graphitic carbon nitride (g-C3N4) hollow nanotube photocatalyst for enhanced photocatalytic hydrogen production activity
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二维/一维硫化钼（MoS2）纳米片/石墨氮化碳（g-C3N4）空心纳米管光催化剂，用于增强光催化制氢活性
DOI：
10.1016/j.jcis.2020.02.029
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发表时间：
2020
影响因子：
9.9
通讯作者：
Jian Tian
中科院分区：
文献类型：
--
作者：
Jiwei Sun;Shaorui Yang;Zhangqian Liang;Xiang Liu;Pengyuan Qiu;Hongzhi Cui;Jian Tian
采用简单的冷冻干燥法合成了石墨碳氮（g-C3 N4）中空纳米管，并将其用于构建二维（2D）-一维（1D）硫化钼（MoS 2）纳米片/g-C3 N4中空纳米管（MoS 2/g-C3 N4 nanotube）光催化剂。当MoS 2含量为15wt%时，MoS 2/g-C3 N4纳米管复合材料的产氢速率最高（1124 μmol·h-1·g-1），远高于块状g-C3 N4（64 μmol·h-1·g-1）和g-C3 N4纳米管（189 μmol·h-1·g-1）。MoS 2/g-C3 N4纳米管复合材料优异的光催化活性归因于2D-1D结构中更多的活性边缘暴露、2D纳米片/1D中空纳米管复合结构中的多个光反射/散射通道以及异质结界面更好的载流子传输和分离。
The graphitic carbon nitride (g-C3N4) hollow nanotubes synthesized via a simple freeze-drying method are used for constructing Two-dimensional (2D)-one-dimensional (1D) molybdenum sulfide (MoS2) nanoflake/g-C3N4hollow nanotube (MoS2/g-C3N4nanotube) photocatalysts. The MoS2/g-C3N4nanotube composite with 15 wt% MoS2shows the highest hydrogen (H2) production rate (1124 μmol·h−1·g−1), much higher than bulk g-C3N4(64 μmol·h−1·g−1) and g-C3N4nanotubes (189 μmol·h−1·g−1). The excellent photocatalytic activity of MoS2/g-C3N4nanotube 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.