高科技时代建材工业的发展

在高科技时代 ,建筑材料基础理论有了巨大突破 ,在这些理论和现代技术的支撑下 ,建材生产、应用与检测等都实现了高科技化。建材工业是各种资源、能源的消耗大户 ,同时也是环境污染的重点行业 ,如何合理开发利用自然资源 ,生产和使用节能建材 ,保护地球环境是建材工业可持续发展的主题。     

纳米沸石-堇青石整体式功能材料研制进展

介绍了近年来纳米沸石-堇青石整体式功能材料的性能、制备方法及应用方面的国内外研究现状,并简要地对纳米沸石-堇青石整体式功能材料的发展前景进行了展望。     

Adsorption Studies of Methylene Blue and Malachite Green From Aqueous Solutions by Pretreated Lignocellulosic Materials

Lignocellullosic materials have been used as low-cost adsorbents for the removal of methylene blue (MB) and malachite green (MG) dyes from aqueous solutions. The organic compounds in the adsorbents that contribute to chemical oxygen demand (COD) have been removed through pretreatment of the adsorbents. The percentage of color removal and COD reduction of both MB and MG dyes were found relatively close in values. The adsorption process followed the Langmuir isotherm as well as the Freundlich isotherm and pseudo-second order kinetic model. The process was found to be endothermic in nature.     

Characterization of Mn species in mesoporous systems: An electrochemical study

Siliceous (MCM-41 type) and aluminophosphate (AlPO type) mesoporous materials have been synthesized trying to substitute the largest amount of Si and Al with Mn.

The MnMCM-41 and MnAlPO obtained samples were characterized from the structural viewpoint and successively they underwent electrochemical testing by means of cyclic voltammetries in aqueous electrolytes in order to evaluate the electrochemical activity of the transition metal. In this communication, we report the results obtained from the structural and electrochemical characterization of these samples. The samples show the expected mesoporous structure with hexagonal array. In both systems, Mn is electrochemically active. In MnMCM-41 the two Mn(IV)/Mn(III) and Mn(III)/Mn(II) processes can be detected, while in MnAlPO Mn(III), originally present, shows only the Mn(IV)/Mn(III) reaction.     

恶二唑基聚芴型高分子电致发光材料的合成与光电性能分析

以Grignard反应和脱水缩聚的方法合成了一种含恶二唑基团的聚芴型电致发光材料,通过紫外-可见光谱和电化学法得到该材料的能带隙约为2.99 eV,最低未占有分子轨道能级约为2.95 eV,其有望成为应用在蓝色电致发光器件中的高分子电子传输材料.     

浅谈明清扬州第宅建筑中的窗牖——以何园为例

明清时期是中华文明封建文化发展的一个高峰,也是东、西方文化交流、碰撞的重要时期。此时的扬州第宅建筑形制经过一段相对持续时间较长的发展过程而日趋成熟,地域与文化特色也日益鲜明。自古窗就是建筑的重要构件之一,承载着功能与文化双重意义。对明清扬州第宅建筑中窗牖的装饰装修特色及其演变进行梳理研究,不但可以丰富、填充我国建筑及其装修的地域性文化研究体系,也为今后窗牖的设计实践提供理论支撑。     

道路用应力吸收材料的发展现状

反射裂缝是沥青路面的主要病害之一,而设置应力吸收层是预防和延缓反射裂缝的重要手段。介绍了4种主要应力吸收材料的组成、作用机理、国内外发展和应用现状,分析了其优缺点,并对应力吸收材料在我国的发展作了展望。     

石英产品的市场开发与应用

本文从传统石英市场和新型石英市场的角度,对前景较好的石英产品类型、规格要求、市场规模等进行了综合分析。随着国内各项科技进步政策的出台以及各项科技产品规范的拟定,为高科技企业以及市场良性发展奠定基础,高科技产业用石英（硅）材料产品的比重逐渐提高。     

相变储能材料在建筑节能中的应用研究

阐述了相变储能材料用于建筑节能的优势,介绍了相变储能材料在建筑中的应用研究进展与现阶段研究特点,探讨了相变储能材料在建筑节能应用方面存在的主要问题,并展望了相变储能材料在建筑节能中的应用前景。     

Fabrication of hexagonal gallium nitride films on silicon (111) substrates

Hexagonal gallium nitride films were successfully fabricated through ammoniating Ga2O3 films deposited on silicon (111) substrates by electrophoresis. The structure, composition, and surface morphology of the formed films were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The measurement results reveal that the polycrystalline GaN films with hexagonal wurtzite structure were successfully grown on the silicon (111) substrates. Preliminary results suggest that varying the ammoniating temperature has obvious effect on the quality of the GaN films formed with this method.