Atomically Thin Mesoporous Nanomesh of Graphitic C3N4 for High-Efficiency Photocatalytic Hydrogen Evolution

ACS Nano
Qing HanLiangti Qu

Abstract

Delamination of layer materials into two-dimensional single-atom sheets has induced exceptional physical properties, including large surface area, ultrahigh intrinsic carrier mobility, pronounced changes in the energy band structure, and other properties. Here, atomically thin mesoporous nanomesh of graphitic carbon nitride (g-C3N4) is fabricated by solvothermal exfoliation of mesoporous g-C3N4 bulk made from thermal polymerization of freeze-drying assembled Dicyandiamide nanostructure precursor. With the unique structural advantages for aligned energy levels, electron transfer, light harvesting, and the richly available reaction sites, the as-prepared monolayer of mesoporous g-C3N4 nanomesh exhibits a superior photocatalytic hydrogen evolution rate of 8510 μmol h(-1) g(-1) under λ > 420 nm and an apparent quantum efficiency of 5.1% at 420 nm, the highest of all the metal-free g-C3N4 nanosheets photocatalysts.

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Citations

May 6, 2016·ACS Applied Materials & Interfaces·Tiance AnGengfeng Zheng
Aug 16, 2016·Environmental Science and Pollution Research International·Yunjin YaoFengyu Wei
Oct 7, 2016·Physical Chemistry Chemical Physics : PCCP·Youliang WangFengyun Wang
Dec 29, 2016·Chemistry, an Asian Journal·Feng-Yun Su, Wei-De Zhang
Jun 19, 2018·Physical Chemistry Chemical Physics : PCCP·Guilan XuJian Zhang
Jan 25, 2019·Physical Chemistry Chemical Physics : PCCP·Swapna ChallagullaSounak Roy
Mar 30, 2018·Mikrochimica Acta·Nadereh RahbarAhmad Babapour
Jun 20, 2017·Advanced Materials·Jijian XuFuqiang Huang
Jul 22, 2020·Chemical Society Reviews·Liping Zhang, Mietek Jaroniec
May 12, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Waheed IqbalMasakazu Anpo
Jan 19, 2018·Chemical Communications : Chem Comm·Lijuan ShenLilong Jiang
Jan 9, 2019·Frontiers in Chemistry·Gang ZhaoXijin Xu
Oct 1, 2020·Advanced Science·Hung Pang Lee, Akhilesh K Gaharwar

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