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中文摘要：
本项目以发展具有高可见光催化活性的铌钽系列新型纳米结构光催化剂为目的；利用较高反应活性的自制的铌酸和钽酸水合物为前驱体，采用各种软化学的合成方法，控制制备系列具有高比表面积的纳米尺度的新型铌钽可见光光催化剂；并根据半导体的能带结构和元素电负性与电子能级的关系理论，结合量子化学的计算方法，提出其它非金属和金属元素分别对氧和金属的部分掺杂调变其带隙和能带位置的方法，调变铌钽基光催化剂的帶隙结构，使其在可见光激发下能同时满足导带底和价带顶分别具有强的还原和氧化能力，设计制备新型固溶体可见光环境光催化剂。阐明同晶取代元素的微结构及表面状态与光催化活性之间的关系，揭示提高可见光光催化剂的活性和稳定性的本质；建立其可能的光催化降解有机污染物的机理模型。最终，开发出高量子效率的新型纳米可见光环境光催化剂，提出指导设计高效可见光环境光催化剂可能的理论，为深入理解半导体光催化的本质奠定理论和实验基础。
英文摘要：
Niobium or tantalum-based photocatalysts；environmental photocatalysis；energy band control；molecular level；structure-activity relationship
结论摘要：
本项目针对铌钽系列金属氧化物半导体光催化剂的宽带隙、低量子效率、难合成等缺点，开展了以自制的铌酸或钽酸、草酸铌铵、Nb2O5、Ta2O5为前躯体，控制制备了系列具有高比表面积、纳米尺度、能带可控的新型铌钽基光催化剂，如Sn2Nb2O6， Sr0.25H1.5Ta2O6·H2O，Bi3NbO7，Zn2Nb2O6，SrBi2Nb2O9，PbBi2Nb2O9，Ca2Nb2O6，TaON，AgNbO3，HNb3O8，HNbxTa1-xWO6 (x=0-1)，HTi2NbO7，它们在环境光催化反应中如有机染料降解、产氢、有机物选择性转化等表现出较高的光催化活性和催化活性稳定性。探讨了这一系列化合物的组成、结构、能带调控及表面状态对其光催化反应的影响。尤其是制备了系列单分子层状铌钽二维超薄纳米片光催化材料，这些类石墨烯的光催化剂具有许多特殊的性能，有利于从分子水平上揭示了光催化的作用本质。这些研究成果将对铌钽基金属氧化物光催化剂的制备、能带调控以及分子水平上认识光催化作用提供重要的学术性指导作用。
成果综合统计
期刊论文
会议论文
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期刊论文
Preparation, characterization and enhanced visible light photocatalytic activities of polyaniline/Bi
A simple and highly efficient route for the preparation of p-phenylenediamine by reducing 4-nitroani
A new insight into the photocatalytic reduction of 4-nitroaniline to p-phenylenediamine in the prese
Visible-light-induced photocatalytic hydrogenation of 4-nitroaniline over In2S3 photocatalyst in wat
Template-free synthesis of a CdSnO3 center dot 3H(2)O hollow-nanocuboid photocatalyst via a facile m
Comparative study of photocatalytic activities of Ca2Nb2O7 nanopolyhedra and TiO2: Degradations of b
Efficient synthesis of monolayer carbon nitride 2D nanosheet with tunable concentration and enhanced
Ternary reduced-graphene-oxide/Bi2MoO6/Au nanocomposites with enhanced photocatalytic activity under
NH2-mediated indium metal–organic framework as a novel visible-light-driven photocatalyst for reduct
Electrostatically derived self-assembly of NH2-mediated zirconium MOFs with graphene for photocataly
Highly efficient visible-light-induced photocatalytic hydrogenation of nitrobenzene to aniline in wa
Mechanism and improvement of the visible light photocatalysis of organic pollutants over microcrysta
CdS-decorated UiO–66(NH2) nanocomposites fabricated by a facile photodeposition process: an efficien
Facile and Rapid Synthesis of Pyrochlore W2O6 center dot H2O Nanoplate via a Fluorinion-Assisted Hyd
Lanthanide stannate pyrochlores Ln(2)Sn(2)O(7) (Ln = Nd, Sm, Eu, Gd, Er, Yb) nanocrystals: Synthesis
Microwave hydrothermal synthesis of MSnO3 (M2+ = Ca2+, Sr2+, Ba2+): effect of M2+ on crystal structu
High efficient photocatalytic reduction of 4-nitroaniline to p-phenylenediamine over microcrystallin
Enhanced photocatalytic hydrogen production activity via dual modification of MOF and reduced graphe
Photocatalytic reduction of CO2 with H2O to CH4 over ultrathin SnNb2O6 2D nanosheets under visible l
Noble-metal-free MoS2 co-catalyst decorated UiO-66/CdS hybrids for efficient photocatalytic H2 produ
Plasmonic Au/CdMoO4 photocatalyst: Influence of surface plasmon resonance for selective photocatalyt
Preparation of MIL-53(Fe)-Reduced Graphene Oxide Nanocomposites by a Simple Self-Assembly Strategy f
A simple strategy for fabrication of Pd@MIL-100(Fe) nanocomposite as a visible-light-driven photocat
M@MIL-100(Fe) (M = Au, Pd, Pt) nanocomposites fabricated by a facile photodeposition process: Effici
Multifunctional polyoxometalates encapsulated in MIL-100(Fe): highly efficient photocatalysts for se
Ultrathin HNbWO6 Nanosheets: Facile Synthesis and Enhanced Hydrogen Evolution Performance from Photo
A Clean and General Strategy To Decorate a Titanium Metal？Organic Framework with Noble-Metal Nanopar
Highly dispersed palladium nanoparticles anchored on UiO-66(NH2) metal-organic framework as a reusab
Efficient visible-light-induced photocatalytic reduction of 4-nitroaniline to p-phenylenediamine ove
An architecture of CdS/H2Ti5O11 ultrathin nanobelt for photocatalytic hydrogenation of 4-nitroanilin
An efficient cocatalyst of defect-decorated MoS2 ultrathin nanoplates for the promotion of photocata
Photo-Fenton Degradation of RhB over Nano-fibre Iron Oxides Interacted Montmorillonite under Visible
Mechanistic insight into the photocatalytic hydrogenation of 4-nitroaniline over band-gap-tunable Cd
Highly dispersed palladium nanoparticles anchored on UiO-66(HN2) metal-organic framework as a reusab
MIL-53(Fe) as a highly efficient bifunctional photocatalyst for the simultaneous reduction of Cr(VI)
Molecular recognitive photocatalytic degradation of various cationic pollutants by the selective ads
会议论文
Photoreduction of Cr(Ⅵ) aqueous solution over amino-modified MIL-68(In) under visible light irradiat
Preparation of MIL？53(Fe)？Reduced Graphene Oxide Nanocomposites by a Simple Self？Assembly Strategy f
Dual function of MoS2nanosheet with high defects for photocatalytic hydrogen evolution over CdS nano
Efficient visible-light-induced photocatalytic reduction of 4-nitroaniline to p-phenylenediamine ove
Efficient Selective Oxidation of Alcohols over NH2-Mediated Zr-Benzenedicarboxylate Metal-Organic Fr
Investigation on the photocatalytic hydrogen evolution activity of the ultrathin niobate-based metal
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