Microwave-assisted hydrothermal and thermal decomposition preparation of mesoporous NiO microspheres

来源 :第十届中国建筑卫生陶瓷科技发展高层论坛 | 被引量 : 0次 | 上传用户:seesmile
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Mesoporous NiO microspheres with high surface area of 234 m2/g and narrow pore distribution at 3.25 nm are successfully synthesized from a microwave-assisted hydrothermal and thermal decomposition route.The as-obtained products were well characterized by XRD,SEM,TEM,SAED,FTIR and N2 adsorption-desorption measurement.It was shown that the hierarchical NiO microsphere with the diameter about 2.0 μm is composed of hexagonal nanoparticles with mesoporous structure.The prepared mesoporous materials were used as an adsorbent to remove the Congo red pollutant contained in the waste water,and they exhibited more favorable adsorptive properties than the mesoporous alumina powders with same surface area due to its special structural features.
其他文献
水行业是被国家高度重视的民生基础,与每个人都有莫大的关系,威派格从承担国家重大专项十二五课题开始,就在思考如何让供水更加安全、更加智慧。在此过程中威派格与科技共生、与科技共同进化,并逐渐成为我国工业互联网领域的一面旗帜。
智慧水务的建设在供水行业广泛开展,大数据信息时代的到来,也给水务行业带来了新的机遇.建设智慧水务的路径和方式有很多种,站在不同的角度看待的方式也各不相同.本文从城市供水数据来源说起,引入智慧水务中数据的“四维二态”特性,提出管网运行动态数据是智慧水务建设的基础和入口,管网运行动态数据的保障是建设智慧水务的关键因素之一.
在供水管网分级计量规划设计阶段,借助水力模型分析分区前后管网的水力状态,对边界管道的流量、流速分析,评估分区边界,预装流量计或关闭阀门;对阀门关闭后管线的流量、流向、各区块的压力、管网水龄、消防用水分析,判断分区方案合理性,针对局部区域压力偏低或偏高,给出方案实施管网改造建议,并整理分区计量的工作流程.
气凝胶是一种由纳米粒子所组成的多孔网络结构,其孔隙率可以高达85%~95%,同时在其网络中充满气态分散介质的固体材料.由于其独特的结构使得气凝胶具有高比表面积、低密度、低热导率等特点,而这些特点使其在热学、声学、催化科学方面有着广泛的应用.本文以硅溶胶为原料,采用乳液成球法和溶胶凝胶法相结合,通过常压干燥的方法制备出了二氧化硅气凝胶微球,采用了扫描电镜、傅里叶红外光谱和BET等测试对所制备的二氧化
创新是个老生常谈的话题,何为创新,如何创新,不同企业走出了不同的道路.笔者认为,企业用以致胜的创新,必须涵盖多个方面的探索和实践,只有全方位的创新和改革,才能真正迎难而上,逆势破局.本文论述陶瓷企业就在多样化创新这条道路上走出了特色,取得了卓越成就,具有行业普适性意义.
The separative-phase fancy glaze was successfully prepared by using the iron ore residue as the ceramic colorant.A possible coloring mechanism was proposed to explain the variation of glaze colors and
CoO/Super P (conductive black) composites (CSP) were synthesized by a facile hydrothermal process followed by a heating treatment.The sample present a porous CoO with inserted spherical Super P struct
The moon-white glaze was successfully reproduced with the addition of 0.02 wt% silicon carbide (SiC) for supplying carbon (C) and reducing iron oxide (Fe2O3) at 1 250 ℃.Effects of the SiC contents on
SiO2 coated Ce2S2 red pigment was prepared in ethanol/H2 O system via sol-gel method and TEOS were used as silica sources.XRD,SEM,EDX,UV-visible spectrophotometer and automatic colorimeter were used t
Mesoporous materials have been intensively studied with regard to technical applications as catalysts and catalyst supports.In which,mesoporous alumina has been extensively used as advanced catalysts