DataVXACS Applied Energy MaterialsPaper
journal article·2018-04-23

Promoting Charge Separation in g-C3N4/Graphene/MoS2 Photocatalysts by Two-Dimensional Nanojunction for Enhanced Photocatalytic H2 Production

Yong-Jun Yuan, Yan Yang, Zijian Li, Daqin Chen, Shiting Wu, Gaoliang Fang, Wangfeng Bai, Mingye Ding, Ling-Xia Yang, Da-Peng Cao, Zhen-Tao Yu, Zhi-Gang Zou

ACS Applied Energy Materials· Volume 1· Issue 4
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Source abstract

Abstract

Graphitic carbon nitride (g-C3N4) is a promising photocatalyst for solar H2 generation, but the practical application of g-C3N4 is still limited by the low separation efficiency of photogenerated charge carriers. Herein, we report the construction of ternary g-C3N4/graphene/MoS2 two-dimensional nanojunction photocatalysts for enhanced visible light photocatalytic H2 production from water. As demonstrated by photoluminescence and transient photocurrent studies, the intimate two-dimensional nanojuction can efficiently accelerate the charge transfer, resulting in the high photocatalytic activity. The g-C3N4/graphene/MoS2 composite with 0.5% graphene and 1.2% MoS2 achieves a high H2 evolution rate of 317 μmol h–1 g–1, and the apparent quantum yield reaches 3.4% at 420 nm. More importantly, the ternary g-C3N4/graphene/MoS2 two-dimensional nanojunction photocatalyst exhibits much higher photocatalytic activity than the optimized Pt-loaded g-C3N4 photocatalyst.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCompositesCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Perovskite Materials and Applications · 2D Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, People’s Republic of China

National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Science, Nanjing University, Nanjing 210093, People’s Republic of China

College of Materials Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, People’s Republic of China

Macau Institute of Systems Engineering, Macau University of Science and Technology, Macau 999078, People’s Republic of China

Funding

Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province

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