Synchronously regulating d-and p-band centers of heterojunction photocatalysts by strain effect for solar energy conversion into H_(2)
作者机构：School of Materials Science&Chemical EngineeringNingbo UniversityNingbo 330013China School of New EnergyNingbo University of TechnologyNingbo 315336China School of ChemistryChemical Engineering and Material ScienceShandong Normal UniversityJinan 250014China
出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)
年 卷 期：2024年第190卷第23期
页 面：210-217页
核心收录：
基 金：supported by the National Natural Science Foundation of China(Nos.51972177 and 22372084) the Key Project of Zhejiang Province(No.2023C3016) the Natural Science Foundation of Ningbo City(No.2021J067)
主 题：Heterojunction photocatalyst p-band center d-band center H_(2)O splitting Photocatalytic H_(2)generation
摘 要：Difficult dynamical transfer behaviors for charge carriers from generation locations to corresponding re-ductive and oxidative sites as well as subsequent their splitting H_(2)O with large reaction overpotential have not been solved yet,which seriously impedes the conversion efficiency of solar energy into H_(2)(STH).Herein,nanocage-like g-C_(3)N_(4)(C_(3)N_(4)NC)supported Ni2 P nanoparticles(Ni2 P/C_(3)N_(4)NC)have been constructed for solving the above dynamical bottleneck by synchronously regulating d-and p-band cen-ters using the strain ***-excited electrons and holes are separately propelled to reductive site(Ni2 P)and oxidative site(C_(3)N_(4)NC)within the localized electric field for∗-OH dehydrogenation and∗-O coupling in the photocatalytic H_(2)O splitting along with an STH of 2.52%at 65℃under AM 1.5 G irradi-ation,being explored by in situ diffuse reflectance infrared Fourier transform spectroscopy,in situ X-ray photoelectron spectroscopy and Hall effect *** research explores a unique insight to boost STH over heterojunction photocatalysts by synchronously regulating their d-and p-band centers.
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