中文摘要：

在碱性条件下由氧化石墨（GO）还原获得还原石墨烯（RGO）.RGO与4-二苯胺基苯甲醇（TPACH2OH）混合后发生相互作用,得到功能化石墨烯复合物（TPACH2OH-RGO）.采用密度泛函理论（DFT）对TPACH2OH-RGO模拟计算结果表明,TPACH2OH和RGO之间主要通过氢键作用形成复合物.利用紫外-可见光谱（UV-vis）、拉曼光谱（Raman）、荧光光谱（Fluorescence）、原子力显微镜（AFM）、透射电子显微镜（TEM）和电化学等方法研究了TPACH2OH-RGO结构和光电性质,并研究了以TPACH2OH-RGO为催化剂在光照射下光催化分解水制氢性能.实验结果表明：光照下复合物中激发态TPACH2OH向RGO转移电子.在TPACH2OH和RGO的质量比为4/3,体系pH=6条件下,光照6 h,TPACH2OH-RGO的产氢总量达到35.0μmol,比RGO的产氢总量（20.4μmol）有明显的提高.

英文摘要：

The reduced graphene oxide（RGO） was prepared by the reduction of graphite oxide（GO） under alkaline conditions.4-（N,N-Diphenylamine） benzyl alcohol functionalized graphene（TPACH2OH-RGO） were formed by stirring the mixture of TPACH2OH and RGO at room temperature.Density functional method（DFT） studies show that hydrogen bond is present between TPACH2OH and RGO in TPACH2OH-RGO.The structure and photoelectric properties of TPACH2OH-RGO conjugate were investi-gated by using ultraviolet-visible spectra（UV-vis）,Raman spectra（Raman）,fluorescence spectra（Fl）,atomic force microscopy（AFM）,transmission electron microscopy（TEM） and electrochemical method.The TPACH2OH-RGO conjugate was employed as a photocatalyst for H2 generation from water under ultraviolet-visible light illumination.The experiment results indicated that electron transfer occurred from the excited-state of TPACH2OH to RGO.When the mass ratio of TPACH2OH to RGO is 4/3,the total amount of H2 evolved from the TPACH2OH-RGO system at pH 6 after 6 h irradiation was 35.0 μmol,which is higher than that produced from the RGO（20.4 μmol）.