Citation: Wang Yixuan, He Fengting, Chen Lin, Shang Jie, Wang Jiajia, Shuaijun Wang, Song Huimin, Zhang Jinqiang, Zhao Chaocheng, Wang Shaobin, Sun Hongqi. Acidification and bubble template derived porous g-C₃N₄ for efficient photodegradation and hydrogen evolution[J]. Chinese Chemical Letters, ;2020, 31(10): 2668-2672. doi: 10.1016/j.cclet.2020.08.003 shu

Acidification and bubble template derived porous g-C₃N₄ for efficient photodegradation and hydrogen evolution

Wang Yixuan ^a ,
He Fengting ^a ,
Chen Lin ^a ,
Shang Jie ^c ,
Wang Jiajia ^d ,
Shuaijun Wang ^a,b,**, ,
Song Huimin ^a ,
Zhang Jinqiang ^b ,
Zhao Chaocheng ^a,*, ,
Wang Shaobin ^e ,
Sun Hongqi ^b,*,

a.
State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (East China), Qingdao 266580, China
b.
School of Engineering, Edith Cowan University, 270 Joondalup Drive, Perth WA 6027, Australia
c.
China General Nuclear Power Hongda Environmental Science and Technology Co., Ltd., Jinan 250000, China
d.
Dongying Municipal Bureau of Marine Development and Fisheries, Dongying Municipal Marine and Fishery Environmental Monitoring Center, Dongying 257091, China
e.
School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide SA 5005, Australia

shuaijunwang@outlook.com

zhaochch@upc.edu.cn

h.sun@ecu.edu.au

Received Date: 27 May 2020
Revised Date: 13 July 2020
Accepted Date: 4 August 2020
Available Online: 7 August 2020

Figures(5)

Graphitic carbon nitride (g-C₃N₄) as a metal-free candidate of photocatalyst has received worldwide attention because of its great potentials in solar light-induced degradation and hydrogen evolution, yet the industrial application is seriously hindered by the small specific surface area and rapid recombination rate of carriers. Herein, we demonstrate that porous g-C₃N₄ (HCl-CNU-X) can be prepared via the co-polymerization of acidified melamine and a green bubble template (urea). Transmission electron microscopy and nitrogen sorption characterization results show that the prepared HCl-CNU-X possesses an in-plane porous structure and large specific surface area, enabling the exposure of more accessible active sites. As a result, HCl-CNU-X exhibits both enhanced photocatalytic tetracycline hydrochloride degradation and higher hydrogen evolution than bulk g-C₃N₄. The boosted photocatalytic performance was ascribed to the formation of the porous structure, which dramatically promotes the separation of charge-carriers and facilitates the electron transfer. This work demonstrates that the acidification of nitrogen-rich precursors combined with a bubble-template can develop a new paradigm of highly porous photocatalysts for environmental remediation and water splitting.
- g-C₃N₄,
- Porous structure,
- Tetracycline hydrochloride,
- Hydrogen evolution,
- Acidification and bubble template,
- Visible light
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Acidification and bubble template derived porous g-C3N4 for efficient photodegradation and hydrogen evolution

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通讯作者: 陈斌, bchen63@163.com

Acidification and bubble template derived porous g-C₃N₄ for efficient photodegradation and hydrogen evolution