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Science china chemistry 2009年第12期52卷 2148-2155页

作者： wang chenglin1,sun lan1,XIE KunPeng1 & LIN ChangJian1,{2.,college of chemistry and chemical engineering,xiamen university,xiamen 361005,china 2.State Key Laboratory of Physical chemistry of Solid Surfaces,xiamen university,xiamen 361005,china 1. department of chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China 2. State Key Laboratory of Physical chemistry of Solid Surfaces Xiamen University Xiamen 361005 China

A constant current electrochemical deposition was employed to incorporate CdS nanoparticles into the TiO2.nanotube arrays (TiO2.Ts). The size and amount of CdS nanoparticles in TiO2.Ts (CdS@TiO2.Ts) were controllable via modulating current,deposition time and electrolyte concentration. It was revealed,from the scanning electron microscopy (SEM) images and X-ray photoelectron spectroscopy (XPS) in depth profile,that CdS nanoparticles were filled into TiO2.nanotubes. A shift of the absorption edge toward the visible region under the optimal electrodeposition condition was observed with the diffuse reflectance spectroscopy (DRS). A 5-fold enhancement in the photocurrent spectrum for TiO2.Ts was observed and the photocurrent response range was significantly extended into the visible region because of the CdS incorporation. Compared with pure TiO2.Ts,under a visible light irradiation,CdS@TiO2.Ts exhibited a 3.5-fold improvement of photocatalytic activity,which was demonstrated by the photocatalytic decomposition of Rhodamine B (RhB).

关键词： TiO2 nanotube CdS photocatalysis RhB

Self　Assembled　Monolayer　Films　of　C_（60）　on　O，O＇－Bis（2.aminoethyl）dithiophos　Modified　Copper

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Chinese chemical Letters 1996年第12期7卷 1135-1138页

作者： Xiao Yu CHEN Yu HAN Ling QI Zheng XU(Coordinahon chemistry Institute, the State Key Laboratory of Coordination chemistry,Naming {2., Nanjing 2.0093)lan sun ZHENG(department of chemistry, xiamen university, Xiaxnen, 361005) Coordination chemistry Institute State Key Lab. of Coord. Chemistry Nanjing University Nanjing 210093 department of Chemistiy Xiamen University Xiamen 361005

On the surface of O,O'-bis(2.aminoethyl) dithiophosphate modified copper C60forms self-assembled monolayer films (SAMs) through the chemical bond. The film was characterized by contact angle, X-ray photoelectron spect... 详细信息

关键词： Films Assembled

Molecular solid solution of lanthanide-titanium-oxo clusters with enhanced photocatalytic hydrogen evolution

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Science china chemistry 2024年第2期67卷 529-535页

作者： Rong Chen Chao-Long Chen Hui Zhang Zi-Han wang Fu-Li sun Ming-Hao Du Gui-Lin Zhuang Cheng wang La-Sheng Long lan-sun Zheng Xiang-Jian Kong Collaborative Innovation Centre of chemistry for Energy Materials State Key Laboratory of Physical chemistry of Solid Surfaces and {2. of chemistry College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China college of chemical {2. Zhejiang University of TechnologyHangzhou310032China

Molecular solid solutions of metal clusters containing different metal centers with well-defined structures can accurately regulate the HOMO-LUMO gap,but are rarely ***,a series of colorless lanthanide-titanium-oxo clusters Ln_(2.Ti_4(μ_(2.-O)_(2.(μ_(3)-O)_4(Piv)_(10)(THF)_(2.(Ln_(2.Ti_4,Ln = Eu,Gd,Tb,and Ce,HPiv = pivalic acid) were synthesized by the reaction of pivalic acid with Ln(Ac)_(3) and titanium *** light yellow crystal of cluster solid solutions Eu_(2.Ti_(4-x)Cd_(x),containing a mixture of Eu_(2.Ti_4 and Eu_(2.Ti_(3)Cd,was obtained by in situ doping Cd^(2.) and S^(2.).Eu_(2.Ti_(3.92.Cd_(0.08) displays efficient photocatalytic hydrogen evolution activity without a co-catalyst,which is up to 2.6 times that of Eu_(2.Ti_*** time-resolved transient absorption spectroscopy and spin-polarized density functional calculations showed that the enhanced photocatalytic performance of Eu_(2.Ti_(4-x)Cd_(x) can be attributed to the narrower HOMO-LUMO gap and lower LUMO position than that of Eu_(2.Ti_*** studyprovides an in situ doping method to realize the simple preparation of cluster solid solution.

关键词： molecular solid solution lanthanide-titanium-oxo clusters photocatalytic hydrogen evolution

Controlling the surface structures and tuning the related properties of nano/micro-structured crystallites

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Controlling the surface structures and tuning the related pr...

Anchoring heterometallic cluster on P-doped carbon nitride for efficient photocatalytic nitrogen fixation in water and air ambient

中国化学会第五届全国结构化学学术会议

作者： Zhao-Xiong Xie lan-sun Zheng State Key Laboratory for Physical {2. of Solid Surfaces,department of {2.,college of chemistry and chemical engineering,xiamen university,xiamen 361005,china.

Anisotropy is a basic property of single *** facets or surfaces have different geometric and electronic structures,dangling bonds *** dependent physical and chemical properties are very popular in *** examples,different crystal surfaces of Pt crystals exhibit totally different catalytic properties to the catalytic reaction of hexane in the excess H *** Pt(111)surfaces cause the aromatization reaction to produce benzene,while the

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来源： cnki会议评论

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Chinese chemical Letters 2024年第4期35卷 176-180页

作者： Chao-Long Chen Rong Chen La-Sheng Long lan-sun Zheng Xiang-Jian Kong Collaborative Innovation Center of chemistry for Energy Materials State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

Light-driven nitrogen fixation to produce ammonia is a green and economical technology of nitrogen reduction but is still quite challenging, especially in an air atmosphere without any sacrificial ***, we demonstrate efficient photocatalytic nitrogen fixation using water and air directly by loading lanthanide–transition metal(4f–3d) cluster NdCo_(3) on two-dimensional P-doped graphitic carbon nitrides(PCN) material surface. Benefiting from the increase in the number of nitrogen vacancies(NVs) and highly matched band gap structure and excellent hole trapping ability of clusters, the NdCo_(3)/PCN photocatalyst exhibits efficient nitrogen reduction activity with 371(in air) and 82. μmol h^(-1)g^(-1)(in pure nitrogen)without any sacrificial reagents. The introduction of potassium sulfate inhibits hydrogen production and promotes nitrogen reduction activation. This work suggests that anchoring precisely structured clusters on 2. materials may enhance photocatalytic nitrogen reduction under normal temperature and pressure.

关键词： Photocatalytic Nitrogen fixation 4f-3d Cluster Air atmosphere