Supercritical CH 3 OH-Triggered Isotype Heterojunction and Groups in g-C 3 N 4  for Enhanced Photocatalytic H 2  Evolution

Mao, Liuhao; Zhai, Binjiang; Shi, Jinwen; Kang, Xin; Lu, Bingru; Liu, Yanbing; Cheng, Cheng; Jin, Hui; Lichtfouse, Éric; Guo, Liejin

doi:10.1021/acsnano.4c03922

articleACS NanoMay 15, 2024GREEN OA

Supercritical CH 3 OH-Triggered Isotype Heterojunction and Groups in g-C 3 N 4 for Enhanced Photocatalytic H 2 Evolution

LMLiuhao Mao BZBinjiang Zhai JSJinwen Shi XKXin Kang BLBingru Lu

Xi'an Jiaotong University

PubMed

Indexed incrossrefpubmed

Abstract

The structure tuning of bulk graphitic carbon nitride (g-C3N4) is a critical way to promote the charge carriers dynamics for enhancing photocatalytic H2-evolution activity. Exploring feasible post-treatment strategies can lead to effective structure tuning, but it still remains a great challenge. Herein, a supercritical CH3OH (ScMeOH) post-treatment strategy (250–300 °C, 8.1–11.8 MPa) is developed for the structure tuning of bulk g-C3N4. This strategy presented advantages of time-saving (less than 10 min), high yield (over 80%), and scalability due to the enhanced mass transfer and high reactivity of ScMeOH. During the ScMeOH post-treatment process, CH3OH molecules diffused into the interlayers of g-C3N4 and…

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116

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FWCI: 10.82
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References: 57

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Topics & keywords

Topics

Keywords

Photocatalysis
Supercritical fluid
Graphitic carbon nitride
Materials science
Heterojunction
Carbon nitride
Imide
Nitride

UN Sustainable Development Goals

Clean water and sanitation

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