首页|Two birds with one stone:Functionalized wood composites for efficient photocatalytic hydrogen production and solar water evaporation

Two birds with one stone:Functionalized wood composites for efficient photocatalytic hydrogen production and solar water evaporation

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Maximizing solar energy utilization is a persistent challenge in photo catalysis,which determines sustain-able solar-driven photocatalytic process.Photo thermal-coupled photo catalysis is considered as a promis-ing solution to tackle the issues of sustainable energy scarcity and environmental pollution by harvesting the full-spectrum solar energy.Herein,a highly efficient photo thermal-accelerated photo catalysis system is elaborately established,in which the assembled carbonized stick/Nb2C MXene evaporator can heat wa-ter into vapor and the integrated g-C3N4 photocatalyst further enables high-efficiency photocatalytic hy-drogen production.The designed hyperboloid wood-based architecture possesses a multiphase interface of water steam/catalyst/hydrogen to reduce the transport resistance of hydrogen gas in liquid and ulti-mately maximize the output of hydrogen energy.Consequently,this coupled photothermal-photocatalytic system achieves a stable solar evaporation rate of 2.16 kg m-1 h-1 under one sun irradiation and highly efficient hydrogen-evolving rate of 3096 μmol g-1 h-1.This work paves a way to explore the improve-ment of photocatalytic hydrogen production by synergic photothermal effect for potential applications in renewable solar energy utilization and hydrogen production.

PhotocatalysisPhotothermalNb2C MXeneg-C3N4Wood

Deqi Fan、Yicheng Tang、Yemei Liao、Yan Mi、Yi Lu、Xiaofei Yang

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College of Chemical Engineering,Nanjing Forestry University,Nanjing 210037,China

Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,International Innovation Center for Forest Chemicals and Materials,College of Science,Nanjing Forestry University,Nanjing 210037,China

Key Laboratory of Chemistry and Engineering of Forest Products,State Ethnic Affairs Commission,Guangxi Key Laboratory of Chemistry and Engineering of Forest Products,Guangxi Minzu University,Nanning 530006,China

Key Laboratory of Chemistry and Engineering of Forest Products,State Ethnic Affairs Commission,Guangxi Key Laboratory of Chemistry and Engineering of Forest Products,Guangxi Minzu University,Nanning 530006,C

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2024

10.1016/j.cclet.2023.109441

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(9)