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题名: Hydrothermally stable thioether-bridged mesoporous materials with void defects in the pore walls
作者: Liu, J;  Yang, J;  Yang, QH;  Wang, G;  Li, Y
刊名: ADVANCED FUNCTIONAL MATERIALS
发表日期: 2005-08-01
DOI: 10.1002/adfm.200500122
卷: 15, 期:8, 页:1297-1302
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Multidisciplinary ;  Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied ;  Physics, Condensed Matter
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: Hydrothermally stable thioether-bridged mesoporous materials have been synthesized by one-step co-condensation of 1,4-bis(triethoxysily)propane tetrasulfide (TESPTS) with tetramethoxysilane (TMOS) using cetyltrimethylammonimum bromide (CTAB) as the surfactant in basic conditions. The ordered mesoporous materials can be formed with a wide range of thioether concentrations in the mesoporous framework, as is seen by X-ray diffraction (XRD) characterization. The results of N(2) sorption and transmission electron microscopy (TEM) reveal that the materials synthesized with TESPTS/TMOS molar ratios in the range 1:8-1:3 have extensive structural defect holes in the nanochannels. All materials exhibit enhanced hydrothermal stability, which is in proportion to the concentration of thioether bridging in the mesoporous framework. The thioether-functionalized mesoporous materials are efficient adsorbents for removing Hg(2+) and phenol from waste water. The Hg(2+)-adsorption capacity of the material can be as high as 1500 mg g(-1).
关键词[WOS]: FUNCTIONALIZED MONOLAYERS ;  ORGANIC GROUPS ;  SILICA ;  ORGANOSILICAS ;  SURFACTANT ;  MCM-41 ;  HPLC ;  FRAMEWORKS ;  SPHERES ;  PHASE
语种: 英语
WOS记录号: WOS:000231319500010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139653
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Liu, J,Yang, J,Yang, QH,et al. Hydrothermally stable thioether-bridged mesoporous materials with void defects in the pore walls[J]. ADVANCED FUNCTIONAL MATERIALS,2005,15(8):1297-1302.
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