Multiscale modifications of carbon nitride to strengthen reaction kinetics and lower thermodynamic barriers for efficient photocatalytic oxygen evolution

doi:10.1016/j.jcis.2024.12.144

IMR OpenIR

	Multiscale modifications of carbon nitride to strengthen reaction kinetics and lower thermodynamic barriers for efficient photocatalytic oxygen evolution
	Zhang, Yang 1; Cao, Ning 1; Wang, Caihao 1; Zhao, Chaocheng 1; Wang, Yongqiang 1; Zhao, Shiyong 2; Zhang, Jinqiang 3
通讯作者	Wang, Yongqiang(wangyq@upc.edu.cn) ; Zhang, Jinqiang(jinqiang.zhang@adelaide.edu.au)
	2025-04-01
发表期刊	JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN	0021-9797
卷号	683 页码:954-963
摘要	Photocatalytic oxygen evolution reaction (OER) is pivotal for sustainable energy systems yet lacks high-performance catalysts capable of strong visible light absorption, robust charge dynamics, fast reaction kinetics, and high oxidation capability. Herein, we report the multiscale optimization of carbon nitride through the construction of porous curled carbon nitride nanosheets (CNA-B30) incorporating boron center/cyano group Lewis acid-base pairs (LABPs). The unique chemical and structural features of CNA-B30 extended the photoabsorption edges of pi -> pi* and n -> pi* electronic transitions to 470 nm and 715 nm, respectively. Planar distortion and LABPs induced charge redistribution, enhancing the built-in electric field to promote efficient charge dissociation and transport. Moreover, boron atoms elevated the valence band of carbon nitride and served as active oxidation sites, effectively lowering the thermodynamic barrier for water oxidation. As a result, CNA-B30 demonstrated outstanding OER activity, achieving 586.5 mu mol g(-1) h(-1) (lambda > 420 nm) without co-catalysts. With the addition of a Co co-catalyst, the oxygen evolution rate increased to 2085.5 mu mol g(-1) h(-1) (lambda > 420 nm), and an apparent quantum efficiency of 5.8 % at 420 nm, surpassing most state-of-the-art OER photocatalysts. This work offers valuable insights into designing advanced OER photocatalysts for efficient solar fuel production.
关键词	Carbon nitride Multiscale modifications Photocatalysis Oxygen evolution Overall enhancement
资助者	National Science and Technology Major Project
DOI	10.1016/j.jcis.2024.12.144
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[2016ZX05040003]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:001395106100001
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180944
专题	中国科学院金属研究所
通讯作者	Wang, Yongqiang; Zhang, Jinqiang
作者单位	1.China Univ Petr East China, State Key Lab Petr Pollut Control, 66 West Changjiang Rd, Qingdao 266580, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Univ Adelaide, Sch Chem Engn, North Terrace, Adelaide, SA 5005, Australia
推荐引用方式 GB/T 7714	Zhang, Yang,Cao, Ning,Wang, Caihao,et al. Multiscale modifications of carbon nitride to strengthen reaction kinetics and lower thermodynamic barriers for efficient photocatalytic oxygen evolution[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2025,683:954-963.
APA	Zhang, Yang.,Cao, Ning.,Wang, Caihao.,Zhao, Chaocheng.,Wang, Yongqiang.,...&Zhang, Jinqiang.(2025).Multiscale modifications of carbon nitride to strengthen reaction kinetics and lower thermodynamic barriers for efficient photocatalytic oxygen evolution.JOURNAL OF COLLOID AND INTERFACE SCIENCE,683,954-963.
MLA	Zhang, Yang,et al."Multiscale modifications of carbon nitride to strengthen reaction kinetics and lower thermodynamic barriers for efficient photocatalytic oxygen evolution".JOURNAL OF COLLOID AND INTERFACE SCIENCE 683(2025):954-963.