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Solar fuel generation over nature-inspired recyclable TiO_(2)/g-C_(3)N_(4)S-scheme hierarchical thin-film photocatalyst

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Journal of Materials Science & Technology 2022年第17期112卷 1-10页

作者： Libo Wang Xingang Fei Liuyang Zhang Jiaguo Yu Bei Cheng Yuhua Ma State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of Geosciences388 Lumo RoadWuhan 430074China College of Chemistry and Chemical Engineering Xinjiang Normal UniversityUrumqi 830054China

Preparation of efficient photocatalysts with ease of recovery in solar fuel generation is highly desired to achieve carbon neutralization in carbon dioxide(CO_(2))*** from the forest with superior light penetration and fast gas transport,a TiO_(2)/g-C_(3)N_(4)composite nanowire arrays(NAs)film with maximized light utilization is *** is achieved by in-situ coating a thin layer of g-C_(3)N_(4)(as the leaf)on the vertically-oriented TiO_(2)arrays(as tree trunks)on Ti foil(as soil).Benefiting from the effective charge separation by S-scheme charge transfer,intimate contact by the in-situ growth as well as the ingenious structure,the composite,readily recyclable,displays exciting performance in photocatalytic CO_(2)*** is beyond doubt that the combination of heterojunction construction and“nature-inspired biomimetic photocatalyst”design promises practical applications and industrial use.

关键词： Carbon neutralization Solar fuels intimate interfacial contact S-scheme heterojunction Biomimetic photocatalyst

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In-situ preparation of TiO_(2)/N-doped graphene hollow sphere photocatalyst with enhanced photocatalytic CO_(2) reduction performance

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Chinese Journal of Catalysis 2021年第10期42卷 1648-1658页

作者： Libo Wang Bicheng Zhu Bei Cheng Jianjun Zhang Liuyang Zhang Jiaguo Yu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200GuangdongChina Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430074HubeiChina School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina

Photocatalytic CO_(2)conversion efficiency is hampered by the rapid recombination of photogenerated charge *** is effective to suppress the recombination by constructing cocatalysts on photocatalysts with high-quality interfacial ***,we develop a novel strategy to in-situ grow ultrathin/V-doped graphene(NG)layer on TiO_(2) hollow spheres(HS) with large area and intimate interfacial contact via a chemical vapor deposition(CVD).The optimized TiO^(2)/NG HS nanocomposite achieves total CO_(2)conversion rates(the sum yield of CO,CH_(3)OH and CH_(4))of 18.11μmol·g^(-1)h^(-1),which is about 4.6 times higher than blank T1O_(2)*** results demonstrate that intimate interfacial contact and abundant pyridinic N sites can effectively facilitate photogenerated charge carrier separation and transport,realizing enhanced photocatalytic CO_(2)reduction *** addition,this work provides an effective strategy for in-situ construction of graphene-based photocatalysts for highly efficient photocatalytic CO_(2)conversion.

关键词： Ultrathin N-doped graphene layer Chemical vapor deposition intimate interfacial contact Photocatalytic CO_(2)reduction Pyridinic N site

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Construction of 1D/1D WO3 Nanorod/TiO2 Nanobelt Hybrid Heterostructure for Photocatalytic Application

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Chinese Journal of Structural Chemistry 2020年第6期39卷 1019-1028页

作者： ZHANG Jun-Yu LIAO Hong-Gang SUN Shi-Gang State Key Lab of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistty for Energy MaterialsCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

In this work,well-defined 1D/1D WO3 nanorod/TiO2 nanobelt(WNR/TNB)hybrid heterostructure was fabricated by a simple electrostatic self-assembly *** structure-property correlation was clarified by characterizing the crystal phases,morphologies,optical properties,photoluminescence and photocatalytic performances of the WNR/TNB *** was demonstrated that photocatalytic performances of WNR/TNB heterostructure toward mineralization was superior to blank TNB,WNR and randomly mixed counterparts under simulated solar light irradiation,owing predominantly to the intimate interfacial contact between WNR and TNB,forming intimately integrated heterojunction,which promotes the spatial charge carriers transfer and electron relay,hence prolonging the lifetime of photogenerated electron-hole ***,photocatalytic mechanism was *** is anticipated that our work would provide an alternative strategy to construct diverse heterostructured photocatalysts for solar energy conversion.

关键词： TiO2 nanobelt WO3 nanorod photocatalysis intimate interfacial contact

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