Construction of electron rich Fe active sites by FeCu alloy anchoring on carbon nitride for photocatalytic nitrogen reduction

Gang Dong ¹Cong Huang ²Fei-Yang Chen ²Xue-Qin Liu ²Zhen Li ²Xiao-Li Su ¹Tao Zeng ¹Yun-Xia Chen ¹Yi-Huang Chen ³Yang Wang²

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作者信息

1. School of Materials Science and Engineering,Jingdezhen Ceramic University,Jingdezhen 333403,China
2. Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan 430074,China
3. College of Chemistry and Materials Engineering,Wenzhou University,Wenzhou 325035,China
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Abstract

Given the clean and inexhaustible solar energy from solar light,photocatalytic ammonia synthesis is extremely appealing.However,high electron-hole recom-bination rates and insufficient active sites severely limited N2 photoreaction reduction.Herein,we designed and fab-ricated FeCu alloy nanoparticles anchored on carbon nitride nanosheets with excellent photocatalytic ammonia synthesis performance.As a coupler between Fe and car-bon nitride,Cu promotes the separation of photogenerated charge carriers in carbon nitride under solar light irradia-tion,and renters the semiconductor a forceful electron donor for the Fe active sites.The accumulated electrons at Fe sites furtherly facilitated the adsorption and activation of the molecular nitrogen.Besides,the uniform dispersed FeCu alloy nanoparticles were on carbon nitride nanosh-eets enhanced the stability of photocatalytic nitrogen reduction reaction,making the artificial photocatalytic ammonia synthesis more sustainable for application.This work highlights that a direct electron transfer channel can be used to regulate the photochemical nitrogen fixation network.

Key words

Photocatalytic N2 fixation/Carbon nitride/FeCu alloy/Active sites/Hydrogenation pathway

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基金项目

National Natural Science Foundation of China(52002361)

National Natural Science Foundation of China(22109120)

Science and Technology Research Project of Jiangxi Provincial Education Department(GJJ2201045)

Science and Technology Research Project of Jiangxi Provincial Education Department(GJJ2201007)

Zhejiang Provincial Natural Science Foundation of China(LQ21B030002)

Key Project for Science and Technology Cooperation of Jiangxi Province(20212BDH80005)

Project of the Science and Technology of Jingdezhen City(20202GYZD013-16)

出版年

2024

稀有金属(英文版)

中国有色金属学会

稀有金属(英文版)

CSTPCDEI

影响因子：0.801

ISSN：1001-0521

参考文献量52

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