Controllable fabrication of 3D porous carbon nitride with ultra-thin nanosheets templated by ionic liquid for highly efficient water splitting
Controllable fabrication of 3D porous carbon nitride with ultra-thin nanosheets templated by ionic liquid for highly efficient water splitting
复制标题
DOI：
10.1016/j.ijhydene.2021.05.018
复制
发表时间：
2021-07-02
影响因子：
7.2
通讯作者：
Zhuo, Shuping
中科院分区：
文献类型：
--
作者：
Liu, Yuepeng;Zhao, Shuo;Zhuo, Shuping
Modifying the texture of carbon nitride to adjust its physicochemical performance is a fascinating method for achieving high photocatalytic activity. Herein, we synthesized 3D porous carbon nitride with ultra-thin nanosheets by using cyanuric acid-melamine supramolecular and ionic liquid as precursor and template, respectively. The ionic liquid adjusts the morphology of materials and induces the carbon residue into the porous channels owing to its incomplete degradation. The 3D porous framework makes carbon nitride reflect the enhanced surface area, exposes adequate reaction sites, and offers a pathway for charge transport. And carbon residue and ultra-thin nanosheets further promote the photogenerated carriers transport and reduce the recombination rate of charge carriers. Consequently, 3D porous carbon nitride with ultra-thin nanosheets exhibit outstanding and stable hydrogen evolution under visible light irradiation. Significantly, as fabricated sample CN-100 reflects an improved H-2 generation rate, up to 17,028 mmol h(-1) g(-1), which is 12 times higher than that of CN (1412 mmol h(-1) g(-1)). The present work offers a unique synthesis strategy to develop the novel photocatalyst with efficient photocatalytic performance. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
