The SEM, XRD and FT-IR characterization verified the MFI structure of the zeolite and that Ti atoms were present in the framework lattice of zeolite. The effect of operation conditions in the hydrothermal process on the catalytic activity and selectivity of TS-1 was investigated.
采用水热法合成出了具有高催化活性和选择性的TS-1沸石，SEM照片证实合成出的沸石结晶完全、晶粒均匀，XRD和FT-IR表征结果证实所得到的沸石具有TS-1的典型光谱特征。
Imidazolate and its derivatives were selected as bridged ligands, which is based on two points of consideration, the first is the smallπsystem of this kind of ligand which contributes to form metallophilicity for small ligand-ligand interaction; the second is that possible zeolite-like framework structures could be contructed by this kind of v-shaped ligands and bivalent metal ions.
本文主要选取咪唑及其衍生物去质子作为桥连配体，主要基于两点：一是配体π体系较小，不容易产生配体间相互作用，对研究一价d〓金属配合物的金属-金属作用非常有利；二是作为V型桥连配体，可以和二价金属构筑多孔沸石型配位聚合物。
Zeolite-like Copper Iodide Framework with New 66 Topology We have described an unprecedented three-dimensional zeolite- like copper iodide constructed from Cu4I441, 4-diazabicyclo[2.2.2]octane supertetrahedron units.
泡沸石象与新的66拓扑结构的铜碘化物框架我们描述了象从Cu4I4修建的铜碘化物的一块史无前例的三维泡沸石 4个 1，4-diazabicyclo [2.2.2]八炭烷 supertetrahedron单位。
The O11 site, which is in the same tetrahedron with Brnsted acid, is the most preferred site for nitrogen substitution in the framework of ZSM-5 zeolite. So the Br nsted acidity on the surface of zeolite after nitridation is decreased.
ZSM-5分子筛晶体结构中与B酸位处于同一个四面体的O11位置，为氮原子的最佳取代位置，因此氮化后分子筛表面的B酸强度得到较大程度的减弱。
The O11 site, which is in the same tetrahedron with BrΦnsted acid, is the most preferred site for nitrogen substitution in the framework of ZSM-5 zeolite. So the Br nsted acidity on the surface of zeolite after nitridation is decreased.
ZSM-5分子筛晶体结构中与B酸位处于同一个四面体的O11位置，为氮原子的最佳取代位置，因此氮化后分子筛表面的B酸强度得到较大程度的减弱。
The acidity and basicity of Y type zeolite modified by different cation and its catalytic behaviors for the OMT were systematically studied. It was found that the NaBrpromoted substrates were more effective than the KBr-promoted systems. In terms of the catalytic activity for the OMT over those catalysts, the following order was observed: KY～RbY＞CsY＞NaY＞LiY＞HY. The framework basicity of oxygen on zeolite was measured by XPS measurement of the O〓 BE and of the pyrrole molecule adsorbed on basic sites. It was found that the basic strength of the framework oxygen was inhomogeneous in the zeolite cage and an XPS approach using pyrrloe probe molecule is a more sensitive method for monitoring the Lewis basicity.
系统考察了以不同阳离子改性的Y型分子筛的酸碱双功能性质及其在OMT反应中的催化活性，(1)发现OMT反应助剂作用顺序NaBr＞KBr，对于OMT反应活性顺序为：KY～RbY＞CsY＞NaY＞LiY＞HY；(2)利用XPS技术，分别从O1s结合能值及化学吸附在碱性位上的吡咯的N1s结合能的变化考查了分子筛骨架氧的碱性，发现骨架氧的碱性位是不均匀的，并且化学吸附吡咯的XPS技术是一种更有效的表征碱性位碱性的方法；(3)H〓、Li〓、Na〓、K〓、Rb〓、Cs〓改性的Y型分子筛的碱性以阳离子原子序数的增大次序依次增大。
The results indicate that (1) the optimal pH value of solutions for the adsorption of ammonia nitrogen on the natural zeolite is 3~9; (2) the adsorption is mainly ascribed to the role of ion exchange; (3) the baking of zeolite at high temperature leads to a framework collapse due to the water loss in structural chains, thus increasing the average pore size, decreasing the specific surface area and weakening the adsorption and ion exchange capacities, and (4) the soaking by NaC1 aqueous solution at 98 ℃ increases the Na(superscript +) content in zeolite and greatly improves the ion exchange capacity for ammonia nitrogen, which is higher than those of American Champion zeolite and Taiwan's AZOO zeolite.
研究结果表明：天然沸石吸附氨氮的最佳pH值范围在3~9之间，吸附过程以离子交换作用为主；高温焙烧会引起沸石脱水，从而导致孔壁坍塌，使沸石孔径增大，比表面积减小，降低了对氨氮的吸附交换能力；经98℃NaCl溶液浸泡后，沸石中Na的含量增加，沸石对氨氮的吸附交换容量明显增大，超过了美国产Champion沸石和中国台湾产AZOO沸石。
The ultra-stable STI zeolite as the basic material has been modified with HCl solution and ammonium hexafluorosilicate solution, respectively, to get the samples with higher Si/Al ratios. The adsorption properties and the framework thermal stability are also determined.
还以超稳化高硅STI沸石为基底沸石，分别以盐酸脱铝和氟硅酸铵脱铝补硅方法制备高硅STI沸石，并对其吸附性质与结构热稳定性进行了研究。
In addition, the structure and IR stretching frequencies of the adsorption complexes shows that proton transfer occurrs during the pyridine adsorption, and the PyH(superscript +)…ZeO(superscript -) ion pairs are further stabilized by multiple hydrogen bonding between the hydrogen atoms of pyridine and the framework oxygen atoms of the zeolite.
吸附复合物的结构参数及红外振动频率等数据表明，吡啶在两种分子筛上吸附时均发生了质子转移，生成PyH…ZeO离子对。此外，吸附复合物中还存在多重氢键作用。
Processing excessive fluorine in drink water using absorbing material of quartz-sand and zeolite as framework, modified by Aluminium-salt treating, was researched. Capability and difference of two kind of modified filter material were compared and analyzed.
研究了以石英砂和沸石为骨架的吸附材料经铝盐改性处理后在处理饮用水中过量氟的处理行为，比较两种改性滤料处理能力的不同并对差异进行分析。
Acid Strength and the Framework Structure of Zeolite
沸石的骨架结构与酸强度
The grafting reaction did not destroy the framework of HY zeolite but made the BET surface area and microporous volume of the raw HY decreased.
接枝反应不破坏HY的骨架结构，修饰后HY沸石的BET比表面积和微孔体积大约降低一半。
The total acidity and the number of strong acidic center increase with the decrease of SiO_2/Al_2O_3 ratio. On the other hand, the SiO_2/Al_2O_3 ratio of DG zeolite has less effect on the characters of crystal structure, e. g. framework density and so on.
此外随着SiO2/Al2O3降低，催化剂总酸度和强酸中心数目增加，另一方面DG分子筛SiO2/Al2O3变化对其晶体结构特性，如骨架密度等影响不大。
In this paper, the introduction of heteroatom gallium into the framework of a Y zeolite by the isomorphous substitution method had been reported and the desulfurization of various model fuels over the synthesized Y zeolite ([Ga] AlY) was studied.
本论文采用液-固相同晶取代的方法将镓引入到Y型分子筛骨架中，首次利用合成的杂原子分子筛（[Ga]AlY）对含有不同硫化物的模拟燃料进行了吸附脱硫研究。
IR spectra reveal that T-O-T antisymmetric stretch and ring stretch shift to lower wavenumber side with increasing the W content, this fact coincides with that the Si-O bond is substituted by longer W-O bond in the zeolite framework.
红外光谱研究表明，T-O-T反对称伸缩振动吸收峰和环振动吸收峰均随产物中W含量的增加而向低波数方向移动，这与分子筛骨架中W对Si的取代相一致。
SAPO-34 is molecular sieve with the framework topology of the natural zeolite chabazite with narrow diameter pores of 0.38 nm, moderate acidity and excellent thermal stability and hydrothermal stability, which is an excellent catalyst for many important reactions.
SAPO-34分子筛具有类菱沸石结构，孔径大小为0.38nm，具有中等酸性以及良好的热稳定性和水热稳定性，在许多反应中表现为性能优良的催化剂。
Ultrastable SRY zeolite was prepared by using complex acid in liquid phase. It has the characteristics of uniform aluminum distribution, low extra framework aluminum, rich framework silicon and good thermal and hydrothermal stabilities.
采用复合酸液相化学法研制的SRY超稳分子筛，具有非骨架铝少，骨架富硅，热和水热稳定性良好等特点。
Y zeolites containing Fe (ⅲ) in framework sites, as the counterions and as the oxide dispersed on zeolite surface were prepared. The reductibility of the zeolite samples was studied by TPR method.
制备了Fe（Ⅲ）处于骨架四面体内、阳离子位及以氧化物形式分散在沸石表面的含铁Y沸石。
When using urea-hydroperoxide as oxygent, just the trimethylphosphine adsorbed on the Lewis acid sites in TS-1 zeolite was oxidized. It further confirmed that the hydroperoxo-titanium species formed by the interaction between the titanium in Lewis acid sites and urea-hydroperoxide are the active oxidation center, and the titanium in the framework as Lewis acid sites enhances the oxidation ability of hydroperoxide. 3. Phenylacetaldehyde and benzaldehyde are found to be the major products in the catalytic oxidation of styrene over TS-1 zeolite, and styrene epoxide is not as speculated detected.
当以过氧化氢尿素为氧化剂时，室温条件下吸附在TS-1分子筛Lewis酸性位的三甲基膦即能被氧化，由此进一步证明，TS-1分子筛中由Lewis酸性位的骨架钛与过氧化氢相互作用形成的过氧化钛物种是三甲基膦氧化反应的活性中心，骨架钛作为Lewis酸中心提高了过氧化氢的氧化能力。
A series of NaY zeolite samples with different amount of silica deposition were prepared and characterized by IR spectroscopy and adsorption measurements. It was found that after deposition and calcination the zeolite framework structurre, pore volume and internal surface properties were essentially unaltered.
制备了一系列氧化硅沉积量不同的SiNaY沸石，红外光谱、比表面和孔体积测量结果表明随着沉积量增加沸石孔径逐渐缩小，但沸石骨架结构、孔容和内表面性质基本不变。