Organically modified MSUx mesophases containing phenyl, ureidopropyl and methyl along with phenyl two moieties were directly prepared by onepot synthesis method. Their texture and surface properties were characterized by means of XRD, HRTEM, FTIR, N2 adsorption/desorption, 29Si CPMAS NMR、13C CPMAS NMR and the microscopic structure was also characterized by small angle Xray scattering (SAXS) using synchrotron radiation as Xray source. The results showed that SAXS profiles were hardly constant with Porod′s law showing a negative slope, i.e. negative deviations (see fig.3). This suggested that the organic groups covalently linked with the matrix of mesoporous silica formed an interfacial layers, which led to the scattering of the pore distortion and gave a negative diviation from Porod′s law. The average thickness of the interfacial layer in each sample was further obtained by analyzing this deviation. SAXS analysis also showed that the organically functionalized MSUX displayed mass fractal and the uniform distribution of the organic groups within the mesoporous channels, implying that it′s formation was a nonequilibrium and nonlinear process.

应用从头计算分子轨道方法,在HF/MINI/ECP和UHF/MINI/ECP水平上对(n=0、1、2、3、4、6)六个硫化钼微晶体和加氢产物Mo7S24H12的几何构型进行了优化,通过对带电体系的能量分析选出三种有代表性的微晶: 、和Mo7S24,优化后的Mo7S24结构参数与实验值符合较好.在所研究的硫化钼微晶体中存在着三种不等价硫原子和两种不等价钼原子,计算结果表明,同种不等价原子的成键特征有明显差异,当体系带电及加氢时键级及总能量有较大的变化,但形成键的杂化轨道类型却变化很小.

采用混合十六烷基三甲基溴化铵（CTAB）与不同碳链的脂肪胺（CnNH2n＋3， n=8,10,12,14,16）作模板，在四甲基氢氧化胺为碱源的条件下，合成了具有六方介孔结构的含钛氧化硅TiMCM41分子筛材料. XRD和TEM测试表明所合成材料具有高度的长程有序结构，样品的N2吸附/脱附等温线表明,高度有序的TiMCM41材料展示了毛细凝聚的陡峭台阶和狭窄的介孔孔径分布.对反应物配比中Ti/Si比、脂肪胺碳链长度n对六方介孔相结构的影响进行了研究，实验发现当Ti/Si< 0.15和n< 16时，均可获得具有六方介孔结构的含钛氧化硅TiMCM41；而当Ti/Si≥0.15或n >16时，产物将分别发生从六方向无定形态或从六方向层状介孔相结构的转移，从混合表面活性剂的堆积参数对这种相转移现象进行了分析.

应用密度泛函理论的DFTLDA、DFTLDA/NL和改进的Slater过渡态方法,把元素的电离能和电子亲合能的计算扩展到周期表的103种元素.并用有限差分方法计算了这103种元素的电负性和硬度.计算中考虑了相对论效应.计算结果比以前Robles等用密度泛函理论的XGL和Xα近似的交换相关泛函的计算结果有所改进,更接近实验值.

以SnCl4和Ti(OBu)4为原料，采用活性层包覆法制备了SnO2@TiO2包覆型复合光催化剂，并用XPS、IR、XRD、TEM和BET等手段进行了表征，以二甲基二氯乙烯基磷酸酯（简称DDVP）稀释液为模拟废水，考察了SnO2@TiO2的光催化活性及降解液初始浓度对反应动力学的影响.结果表明：包覆粒子由锐钛矿型TiO2和金红石型SnO2组成；与纯SnO2、TiO2相比，SnO2@TiO2包覆粒子的光催化活性明显提高，DDVP稀释液被光催化降解属于零级反应，但反应表观速率常数与降解液初始浓度成正比.

采用溶胶凝胶法制备了TiO2和/TiO2催化剂.运用XRD、BET比表面测定、IR和DRS光谱等技术对催化剂进行了表征,并以光催化氧化分解溴代甲烷作为模型反应，考察了上述催化剂的光催化反应性能及其反应条件对光催化活性的影响.结果表明,表面修饰使得催化剂的结构和光催化性能显著改善,催化剂表面形成具有超强酸性质的L酸和B酸协同中心.与TiO2相比,/TiO2光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移,具有优异的光催化氧化活性、稳定性及抗湿性能.

用聚苯乙烯石蜡体系制备涂膜聚苯胺尿酸酶电极的方法简单,在 0.35 V（vs SCE)时的响应时间仅为 30 s 左右.涂膜聚苯胺尿酸酶电极酶催化反应的最适 pH 和电势依赖性与聚苯胺尿酸酶电极酶催化反应的最适 pH 和电势依赖性相似,但涂膜聚苯胺尿酸酶电极酶催化反应的活化能（19.9 kJ•mol－1）较无膜聚苯胺尿酸酶电极酶催化反应的活化能（29.9 kJ•mol－1）低,而前者较后者的稳定性好（前者超过180天）.

运用傅立叶变换红外光谱（FTIR）研究不同分子量的聚乙烯吡咯烷酮（PVP）存在时，十二烷基甜菜碱(C12BE)/正庚烷 /正戊醇 /水（Ⅰ）及二（2乙基）己基磺化琥珀酸钠（AOT）/正庚烷 /水（Ⅱ） 反相微乳液中水的存在状态.采用计算机分峰技术将微乳液中水分子的O－H伸缩振动进行曲线拟合， （Ⅰ）得到三个子峰,分别位于(3560±20)cm－1，(3430±10)cm－1，(3280±10)cm－1附近； （Ⅱ）得到四个子峰，分别位于3618 cm－1， 3550 cm－1， 3446 cm－1和3292 cm－1处.尽管PVP均增溶于W/O型微乳液中表面活性剂分子的极性基团附近，却没有引起长链间自由水的变化.但由于两体系的差异，PVP的存在，导致微乳液（Ⅰ）的本体水减少，结合水增多，却使体系（Ⅱ）的结合水减少，本体水增多.由于W/O型微乳液中水与生物膜中水相似，这些研究有助于理解生物膜界面上的生物化学和生物物理现象.

对钌联吡啶配合物及其单配体的4,4′双取代衍生物， 用量子化学密度泛函(DFT)方法在B3LYP/LanL2DZ水平上进行计算.探讨一些强的推电子基团(如－OCH3)和强的拉电子基团(如－NO2)的取代基效应对配合物的电子结构与相关性质，如配位键长、光谱性质等的影响规律，为该类配合物的合成，光、电、催化和生化作用机理分析提供理论参考.

以光谱技术与微量热技术相结合研究了水溶液中牛血清白蛋白与环丙沙星分子间结合作用的机制. 荧光猝灭法测得该反应的结合常数K=8.39×104 L•mol－1,结合位点数n =1.18;依据Fōrster非辐射能量转移机制,得到授体受体间的结合距离(r=2.46 nm)和能量转移效率(E=0.33).微量热法测得反应的焓变 ΔrHm≈0;牛血清白蛋白与环丙沙星分子间有较强的结合作用,且以疏水作用为主.

采用溶胶凝胶技术,制备了不同退火温度下掺Tb3＋的SiO2玻璃,掺Tb3＋的凝胶玻璃在448,544,585,620 nm显示Tb3＋的5D47FJ(J=3,4,5,6)的特征发光光谱.通过不同退火温度下样品的激发光谱、发射光谱、红外光谱、远红外光谱及差热热重谱研究了掺Tb3＋的硅基材料由凝胶向玻璃转变过程中的结构变化及对Tb3＋发光性能的影响.结果显示,在50～100 ℃退火温度下,凝胶大部分吸附水分子被除去,在150～500 ℃退火温度区,是凝胶向玻璃转变的主要结构变化区,并且其发光强度也明显增加,到800 ℃时趋于稳定.这些现象得出一个结论,Tb3＋的发光跃迁被O－H基强烈猝灭而随退火温度的升高而加强.

The pressure dependence of partial molar volumes was calculated in detail by RK equation of state for the dehydrogenation of dodecane to internal dodecane.The results showed that clustering between supercritical medium and internal dodecane and hydrogen was much stronger in supercritical phase than in gas phase,and that,clustering between supercritical medium and the reaction products was more remarkable.This provided a quantitative description of the change in cluster size resulted by an increase in solutesolvent attraction force.

The dynamic interfacial tensions between hydrocarbons and solutions of surfactants having different hydrophiliclipophilic ability are measured.The effects of ionic strength and alkyl chain carbonnumber on dynamic interfacial tensions are also studied.It is found that adsorptiondesorption barriers are connected with the hydrophiliclipophilic ability of surfactants.There exists a large or small adsorptiondesorption barrier to the transfer of surfactant having strong hydrophilic or lipophilic ability from water to oil.The influences of ionic strength and alkyl chain carbon-number on adsorptiondesorption barriers are discussed.

Differential scanning calorimetry （DSC） was used to measure the thermal hysteresis activity(THA) of plant antifreeze proteins(AFPs). The results reveal that DSC is a good method to screen and study AFPs. In the sixteen components extracted from Ammopipanthus mongolicus leaves, one(P3S1) was found to have apparent thermal hysteresis activity by DSC. As the amount of ice nuclei in the sample decreased, the THA of P3S1 increased from 0.01 ℃ to 0.65 ℃. It is notable that the twopeak thermal hysteresis effect was observed. Two endothermic peaks appeared in the melting process of P3S1, while the freezing peak also consisted of two peaks. The peaks appeared antecedently showed larger thermal effect. This phenomenon shows P3S1 has two different kinds of interaction with water and ice crystal. It is probably an important property of a class of AFPs.

The thermal decompositions of two systems(NO.1,KClO₃(52.2%)/CuO(26.0%)/S(9.6%)/Mg-Al(3.5%)/C₆Cl₆(4.35%)) and NO.2,(KClO₃(52.2%)/CuO(26.0%)/S(9.6%)/Mg-Al(3.5%)/C₆Cl₆(4.35%)) are studied using Accelerating Rate Caorimeter (ARC).Temperature vs time curve and pressure vs time curve of reactions are shown in Fig.1 and Fig.2 respectively.The basic data including reaction time(1.3 and 7.3 min respectively),initial temperature (159 and 150℃ respectively),temperature at the maximum rate(272 and 272℃ respectively),the maximum pressure (420 and 190kPa respectively) and the activation energies(175.6 and 135.2 kJ mol-1 respectively) of the thermal decomposition are given to evaluate the safety of the two systems.Results indicate that system NO.2 is safer than NO.1.Compared with the traditional methods,ARC technique can be used to measure temperature and pressure of exothermic reaction concurrently,to find the tiny exothermicity and to determine the initial temperature of exothermic reaction.

Cationic Gemini surfactants, alkanediylα,ωbis(dimethyl dodecylammonium bromide) have been synthesized by the following method: firstly dodecyl bromide was prepared by the reaction of dodecanol with bromic acid in the presence of strong sulfuric acid. Dodecylbromide was then reacted with N,Ntetramethyl ethane diamine(or N,Ntetramethyl hexana diamine) to prepare the title compounds. Micellization of these Gemini surfactants was investigated using conductivity measurement. The results showed that the critical micelle concentration(cmc) of the Gemini surfactants has a much lower value compared with that of the corresponding “monomer”. For a series of the Geminis with the same length(s) in the spacer chain, the cmc decreased with increasing the carbon number (m) in the alkyl chain. The aggregation number(N) of the micelle also drastically decreased with m. For the same value of m, the cmc varied slightly with s, which indicated that the electrostatic interaction between the ionicgroups of the “monomer” has been naturally changed duo to a link between the two ionicgroups of the “monomer” through a spacer. However, N was strongly decreased with s,which may be a reason of steric inhibition coming from the ionicgroups due to a link of spacer. With increasing temperature, micellization of the Gemini surfactants was slightly enhanced.

Molybdenum oxide films were fabricated successfully by spin coating from Li＋doped peroxopolymolybdate solution via solgel technique.Their electrochemical and electrochromic properties were investigated by cyclic voltammetry and insitu UV transmittance measurements.The results showed that the films possessed excellent electrochemical stability and reversibility.The electrochromic mechanism of the MoO3 was discussed by using results obtained from Xray photoelectron spectroscopy (XPS).The results showed that the most part of the Mo6＋ in MoO3 film was reduced to Mo5＋ and Mo4＋ ions during the Li＋ intercalation process,Mo4＋ was oxidized to Mo5＋ and part of Mo5＋ was oxidized to Mo6＋ again during the Li＋ deintercalation process.So it was considered that Mo4＋ ions existed in the colored MoO3 films.

In this paper, the formation of the CuxC60 films has been described briefly. The UVVis absorption spectrum of CuxC60 film have been discussed in detail, the electronic structure of CuxC60 film is discussed qualitatively. For x< 1, there exists only Cu＋ in the CuxC60 films. However, for x=4, not only Cu＋, but also atomCu exists in them. In CuxC60 films three strong peaks have been shiffed compared with that of C60 films. The shift of these strong peaks shows that in the CuxC60 films C60 molecule accepts only one electron and becomes . Because of the existence of the atomCu in the CuxC60 films, in visible region there is a wide peak which is the plasmons resonance absorb peak of the Cucluster in it.

EPR spectra of three new quaternary gadolinium complexes(I：[Gd(C6H5COO)2(NO3)(bipy)]2,Ⅱ：[Gd(mCH3C6H4COO)2(NO3)(phen)]2 and Ⅲ：[Gd(pCH3C6H4COO)(NO3)(phen)]2) with mixed anion ligands in polycrystalline powders and solutions have been investigated at different temperatures and solvents.New behavior of EPR spectra of complex Ⅲ was first observed in polycrystalline powder at 77K and three types of EPR spectra for three complexes,symmetry resonance spectrum for the complex Ⅱ,U spectrum for the complex Ⅲ,and asymmetry resonance spectrum for the complex I.The relationship of EPR features between the crystalfield strength in the complexes and local symmetry around Gd(Ⅲ) was discussed.The crystalfield parameters b20 and asymmetry parameters λ′ of the complexes I and Ⅲ were estimated.

This paper reports the results of solubility calculation of the phase system HClNaClH2O at 25 ℃ when θHNa (interactions of two species with the same charge) and ΨHNaCl (interactions of three species) were changed by ＋10％ and －10％. The results indicated that the effects of the two kinds of interactions on the calculated solubility of the system were regular. The calculated solubilities of the system did not vary while the two interactions were increased and decreased simultaneously. The solubility data of the system changed greatly as one interaction was increased and the other decreased. This study is significant for the chemical technology of salting out salts from the watersalt system.

Ultrathin film of perfluorodecanoic acid expected to be excellent lubricant for micromachines was prepared successfully on single crystal silicon substrate.The film was characterized by means of Xray photoelectron spectroscopy (XPS) and contactangle meter.The chemical reaction involved in the preparation of the ultrathin film was discussed as well.After being immersed in a dilute aqueous solution of polyethyleneimine (PEI) for 15 minutes and rinsed with distilled water,the silicon substrate was coated with a thin film of PEI,which was then put into a dilute solution (1×10－3 mol•L－1) of perfluorodecanoic acid in hexadecane.Subsequently the steady perfluorodecanoic acid ultrathin film was developed on PEI coating in the presence of a covalent amide bond between carboxylic group and the primary or secondary amine groups of PEI.This process was accompanied by the contact angle changes of water droplet on the Si surface (see Table 1).Moreover,the reaction between perfluorodecanoic acid and PEI was significantly influenced by N,N′dicyclohexylcarbodiimide (DCCD).The contact angle on the ultrathin film of perfluorodecanoic acid is only 66.3° in the absence of DCCD in the reacting solution; it rises to 89.4° in the presence of DCCD.This indicates that the reaction between perfluorodecanoic acid and PEI was accelerated by DCCD,and the quality of perfluorodecanoic acid ultrathin film thus improved.XPS analysis of the ultrathin film indicates that the derivatization of PEI with perfluorodecanoic acid was accompanied by several changes.First,a large and highly symmetrical F 1s peak appeared at 688.3 eV (C－F).Secondly,a new peak of N 1s appeared at 400.7 eV (chemical shift 1.4 eV),which was attributed to the N atom attached to the carbonyl group (O=C－N).Thirdly,three new peaks of C 1s appeared at 286.1 eV (chemical shift 1.5 eV),288.1 eV (chemical shift 3.5 eV),and 291.0 eV (chemical shift 5.4 eV),respectively.These C 1s peaks were attributed to the C atom attached to the O=C－N group (O=C－N－C),the carboxyl C atom (O=C－N),and the C atom in －CF3 group (C－F),respectively.Therefore it can be concluded that perfluorodecanoic acid has been chemically adsorbed onto the surface of PEI and perfluorodecanoic acid ultrathin film prepared successfully.

采用快速混合停流技术,考察了不同pH值条件下水溶性锰卟啉MnⅢ(TMPyP)与四种单氧给体mCPBA、KHSO5、NaOCl及H2O2构建的细胞色素P450模拟酶体系催化氧化活性物种的生成及催化烯烃环氧化过程.低pH值时,主要生成四价锰氧中间体2;而在高pH值时,首先生成五价锰氧中间体1,该中间体再向四价中间体2转化.

用密度泛函理论(DFT)B3LYP方法,取6311G基组,计算研究了F＋Cl2ClF＋Cl的反应机理.求得1个线形和2个三角形过渡态,反应能垒分别为1.24、46.37和105.09kJ•mol－1；同时发现F以∠FClCl为10～20°（或 120～160°）进攻Cl2时,反应无能垒.此外,求得对称反应Cl′F＋ClCl′＋ClF的能垒为40.57 kJ•mol－1的1个过渡态.

利用密度泛函方法(DFT)研究了MnNa2WO4/SiO2催化剂表面的活性中心结构.计算表明,在岐卜绞⒌ (111)面上,W能以单个或三个桥氧与载体作用形成稳定的四面体配位结构,Mn则能以单个桥氧与载体配位或形成不同结构的氧化物团簇；以单个桥氧担载的[WO4]四面体是最可能的甲烷活化中心.

以铝阳极氧化形成有序的多孔氧化铝为模板，利用交流电在模板孔洞中沉积金属Ag得到纳米Ag粒子/Al2O3组装体系，透射电镜观察证实在氧化铝模板中有金属纳米Ag粒子存在.分析了交流电能在孔洞中沉积金属的原因是由于Al/Al2O3界面的整流特性，测量了Al/Al2O3界面的I－U关系曲线.

用准经典轨线方法研究了氯取代丙烷伯氢的反应.采用三体LEPS势能函数构筑势能面.结果表明, 氯取代丙烷伯氢的反应呈现出与氯取代丙烷仲氢反应不同的微观反应进程.对于氯取代丙烷仲氢的反应，只有一种反应通道，反应过程中有碰撞复合物产生.对于氯取代丙烷伯氢的反应，有两种反应通道，一种有碰撞复合物生成，另一种则没有.

根据热动力学基本理论, 推导了平行准一级反应和平行准一二级反应的热动力学方程, 建立了热谱解析平行反应动力学参数的热动力学研究法, 并利用该法研究了两个模拟平行反应体系的热动力学, 实验结果验证了方法的正确性.

应用紫外可见吸收光谱研究了meso四(4N苄基吡啶基)卟啉(MTBPyP4＋,M=H2,Zn)阳离子与金属氧簇阴离子(SiW12O4－40)在水溶液中的光谱行为. 光谱演变及Job图表明MTBPyP4＋与SiW12O4－40在水溶液中可形成稳定的1∶1的超分子化合物. 同时本文还考察了化学计量为1∶1的[CoTBPyP][SiW12O40]超分子化合物的电催化分子氧还原行为, 表明该类超分子化合物有望成为一类新的催化氧还原的修饰电极材料.

通过电化学方法，在玻碳载体表面制备以Pt、Pb、Sb为主要成分的铂基PbSb表面合金电催化剂.运用电化学循环伏安、石英晶体微天平（EQCM）和扫描隧道显微镜（STM）技术对催化剂电极进行表征.结果表明：酸性溶液中在所制备的表面合金电极上，析氢起始电位负移至－0.45 V，表面合金的起始氧化电位为0.15 V，其稳定性明显高于电催化还原中常用的铅、锑等金属电极.通过EQCM研究表面合金电极的形成过程，结合STM观察和XPS深度剖析，确定电催化剂表面是由粒度均匀的纳米颗粒构成的表面合金层.

将SbPbPt/GC表面合金电极应用于草酸的电催化还原，发现所制备的催化剂电极具有较高的电催化活性，草酸还原的起始电位约－0.4 V，与通常使用的铅阴极相比，正移了大约600 mV.电化学原位红外反射光谱研究，证实所研制的催化剂可在较低的过电位下还原草酸生成乙醛酸，并具有较好的选择性.对于所研制的表面合金电催化剂的实际应用进行了探讨.

建立了通过精密测量密度、折射率和浊度研究微乳液滴微观性质的方法,获得水与表面活性剂的摩尔比r分别为10.5和12的AOT/H2O/甲苯微乳液体系液滴的微观结构及相互作用参数,得到AOT分子的长度L=1.07 nm,用液滴间的相互作用讨论了相变温度与r的关系.用L=1.07 nm,通过密度测量得到AOT/H2O/甲苯和AOT/H2O/环己烷两个微乳液体系不同r值下液滴的微观结构参数,与文献报导的数据吻合得很好.发现在微乳液滴中的水的密度明显大于自由水的密度,并随溶剂变化,而AOT分子的构型不变.

采用电化学技术、XPS、DSC、XRD等方法研究NiWB合金电沉积及热处理前后合金镀层的结构和显微硬度.结果表明，在NiWB合金电沉积过程中伴随着化学沉积镍等过程以及Na2B4O7在镀层中的夹杂；NiW和NiWB合金电沉积层分别表现为纳米晶结构和非晶态结构；热处理过程中合金电沉积层发生晶粒粗化过程以及NiWB合金镀层发生新相形成过程，产生Ni4W和镍硼化物如Ni2B、Ni3B等沉淀物；400 ℃热处理2 h后NiW合金镀层有最大的显微硬度达919.8 kg•mm－2，而在500 ℃下NiWB合金有最大的硬度达1132.2 kg•mm－2.

在带有可视石英窗的可变体积高压釜内,在60－180 ℃温度范围、 4.0－14.5 MPa压力范围下测定了CO2和乙醇二元系统的相平衡数据.根据实验结果预测了pc,Tc,xc.用PengRobinson方程和WongSandler混合规则进行了拟合,所得结果与实验数据基本相符.

采用程序升温脱附及FTIR技术考察了CO、H2在钴基催化剂上的吸附行为.H2TPD表明,Co/SiO2催化剂有两类脱附氢,引入锆助剂后,低温脱附氢量明显增加,高温吸附氢量下降.COTPD及吸附态CO的红外光谱表明锆助剂使CO在钴催化剂上的吸附强度减弱,但其吸附量增大.钴基催化剂的费托合成反应性能可以用吸附态物种的变化来解释.

四新戊基锆(ZrNp4)能在室温下与MCM41分子筛表面羟基发生化学反应，导致=ZrNp2基团通过两个氧原子接枝在分子筛的表面.文章介绍了这种表面化合物的制备方法，考察了反应温度、ZrNp4升华温度以及MCM41脱水温度对制备的影响, 并用红外、固体魔角自旋核磁共振、化学探针反应表征了表面有机金属化合物的组成和结构.

The surface organic modification of TiO2 particles with titanate coupling reagent,which was precoated with double layers of SiO2 and Al2O3,was studied.Experiments showed that the modified particles exhibited hydrophobic characteristics.The modification state of the particle surface was characterized by IR spectroscopic measurement,pyrolytic gas chromatography,thermogravimetric analysis and Xray photoelectron spectra.The titanate coupling reagent binding with the hydroxyl on the particle surface was analyzed.The surface characteristics of premodification and postmodification particles were compared.

The problem of polymer chains near an impenetrable plane is investigated by means of the probability method. It is shown that the 2kth moment of the reduced normal component of the endtoend distance A2k only depends on the reduced distance to the plane of the first segment AZ0, here, A=l－1•, n is the chain length, l is the bond length and fixed to be unity, which can be expressed as A2k=f(AZ0). When AZ0≈0, A2k is the maximum(A2k=k!), then it decreases rapidly and soon reaches the minimum with the increase of AZ0, afterwards A2k goes up gradually and reaches the limit value [(2k－1)×(2k－3)×…×1]/2k when AZ0 is large enough. Suggesting that the polymer chain can be significantly elongated for small Z0 and contracted for an intermediate range of Z0 due to the barrier. The distribution of the endtoend distance also depends on the distance Z0 to the plane of the first segment.

By varying the hydrolysis and hydrothermal processing parameters in preparing TiO2 nanoparticles different sizes of TiO2 nanoparticles are obtained.(1) At higher autoclaving temperature,lower pH and longer autoclaving period,larger sizes of TiO2 nanoparticles are prepared.(2) The nanoporous electrodes made from sintering smaller TiO2 nanoparticles show relatively poor IPCE and low absorption in UVVis spectrum,(3) Higher IPCE can be achieved with TiO2 nanoporous electrodes made from sintering larger TiO2 nanoparticles.These electrodes are suitable for studying behavior of the photoelectrochemistry of dye sensitized nanoporous electrodes.

A new Schiff base derived from tyrosine and salicylidene and its copper(Ⅱ) complex have been synthesized and characterized by elemental analyses,molar conductances,thermal analyses,infrared spectra,electronic spectra and EPR spectra.The composition of the complex is K[CuL(Ac)]•H2O, where L=H13C16NO4. EPR spectra of the copper(Ⅱ) complex were investigated in various solvents at different temperatures.It is found that the linewidth of four hyperfine lines on solution spectra at room temperature is unequal and changes with mⅠ ,this could be satisfactorily explained by the relaxation effect.The relaxation time and the relaxation rate were calculated.By using spectral parameters from solution spectra at low temperature,the bonding parameters of Cu(Ⅱ) complex were calculated.The bonding characterization and stability of the complex were disscussed.The results show that the inplane 螵瞓ond and the inplane 皙瞓ond in the complex all play an important role.

The interaction of methylene blue(MB) and bovine serum albumin(BSA) is investigated in the SDS micelle system which is simulated as one kind of coexisted albumin. The interaction parameters of MB and BSA and simulated albumin such as partition coefficient 辍ormal binding free energy 腉、average binding number n are calculated. The results show that most of MB is in the form of monomer in SDS micelle systems；the main interaction of MB and BSA is of static electric and Hbind force,and that of MB and simulated albumin is only of static electric force.