首页|Introducing Spin Polarization into Mixed-Dimensional Van der Waals Heterostructures for High-Efficiency Visible-Light Photocatalysis

Introducing Spin Polarization into Mixed-Dimensional Van der Waals Heterostructures for High-Efficiency Visible-Light Photocatalysis

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The low separation efficiency of the photogenerated carrier and the poor activity of the surface redox reaction are the main barrier to further improvement of photocatalytic materials.To address these issues,introducing spin-polarized electrons in single-component photocatalytic materials emerged as a promising approach.However,the decreased redox ability of photocarriers in these materials becomes a new challenge.Herein,we mitigate this challenge with a carbon nitride sheet(CNs)/graphene nanoribbon(GNR)composite material that has a van der Waals heterostructures(vdWHs)and spin-polarized electron properties.Experimental results and theoretical calculations show that the heterostructure has a strong redox ability,high carrier-separation efficiency,and enhanced surface catalytic reaction.Consequently,the mixed-dimensional CNs/GNR vdWHs exhibit remarkable performance for H2 and O2 generation as well as CO2 production under visible-light irradiation without any cocatalyst.The spin-polarized vdWHs discovered in this study revealed a new type of photocatalytic materials and advanced the development of spintronics and photocatalysis.

DFT calculationsspin polarizationVan der Waals heterostructuresvisible-light photocatalysis

Yong Wang、Wei Xu、Yu Zhang、Chengxin Zeng、Weining Zhang、Lin Fu、Mei Sun、Yizhang Wu、Jian Hao、Wei Zhong、Youwei Du、Rusen Yang

展开 >

Academy of Advanced Interdisciplinary Research,School of Advanced Materials and Nanotechnology,Xidian University,Xi'an 710126,China

National Laboratory of Solid State Microstructures,Collaborative Innovation Center of Advanced Microstructures and Jiangsu Provincial Key Laboratory for Nanotechnology,Nanjing University,Nanjing 210093,China

Department of Physics,Shaanxi University of Science and Technology,Xi'an 710021,China

Department of Physics,State Key Laboratory of Surface Physics,Fudan University,Shanghai 200433,China

State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering,Ningxia University,Yinchuan 750021,China

展开 >

国家自然科学基金国家自然科学基金中央高校基本科研业务费专项中央高校基本科研业务费专项Foundation of State Key Laboratory of Highefficiency Utilization of Coal and Green Chemical Engineering陕西省国家自然科学基金陕西省国家自然科学基金

1210435251973170XJS2122082020BJ-562022-K672019JCW-172020JCW-15

2023

10.1002/eem2.12390

能源与环境材料(英文)

能源与环境材料(英文)

CSCD
ISSN：
年,卷(期)：2023.6(5)
  • 51