水资源与水工程学报

文章摘要

孙燕,陶红,张章堂,卑蕾蕾,宋晓锋,陈良霞.废弃硅藻土制备MCM-41介孔分子筛的表征及吸附性能研究Journal of Water Resources and Water Engineering[J].,2013,24(5):189-192

废弃硅藻土制备MCM-41介孔分子筛的表征及吸附性能研究

Study on surface features of mesoporous silica particles made by spent diatomaceous earth and performance of adsorption

Received:April 12, 2013 Revised:August 11, 2013

DOI：10.11705/j.issn.1672-643X.2013.05.042

中文关键词: 废弃硅藻土 MCM-41表征 Cu²⁺吸附性能

英文关键词: spent diatomaceous earth MCM-41characterization Cu²⁺ adsorption perfermance

基金项目:

Author Name	Affiliation
SUN Yan	School of Environment & Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
TAO Hong	School of Environment & Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
ZHANG Zhangtang	Department of Environmental Engineering,National I-Lan University, I-Lan 260,TaiWan,China [KH*3D]
BEI Leilei	School of Environment & Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
SONG Xiaofeng	School of Environment & Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
CHEN Liangxia	School of Environment & Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China

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中文摘要:

以废弃硅藻土作为硅源,CTAB为模板剂,通过水热法合成介孔材料MCM-41,并使用X-射线荧光分析仪(XRF),X-射线粉末衍射仪(XRD),氮气等温吸附/脱附仪,傅利叶红外线吸收光谱仪(FT-IR),热重量分析仪(TGA),扫描式电子显微镜结合X射线能量色散谱(SEM-EDS)和高分辨率穿透式电子显微镜分析(HRTEM)等方式进行表征；通过吸附重金属离子实验检测该材料的性能。结果表明:所合成的材料为介孔结构,孔道排列较为整齐,MCM-41的比表面积为1060.2cm²/g,平均孔洞体积约为1.05cm³/g,孔径为3.95nm,孔径分布窄,对重金属Cu²⁺有很好的吸附性能。本研究对废弃硅藻土的综合利用及重金属的治理具有一定的参考价值。

英文摘要:

In this study, MCM-41was synthesized from diatomaceous earth (SDE) as source of Si and cationic surfactant (CTAB) as a template through hydrothermal method. The MCM-41was characterized by instruments of x-ray fluorescence analysis (XRF), x-ray Diffraction (XRD), N2adsorption/desorption analyzer, fourier transform infrared spectroscopy (FTIR), thermo gravimetric analysis (TGA), scanning electron microscope-energy dispersive spectroscopy (SEM-EDS) and high resolution transmission electron microscope (HRTEM). The experiment on heavy metal adsorption was applied so as to detect the property of the material. The research of microscopic structure illustrated the synthetic materials retain long-range order mesoporous structure. The surface area of MSM is 1060m²/g, the pore volume is 1.05cm³/g and pore diameter is 3.95nm. MSM has a good adsorption for heavy metal Cu2⁺. The result has a certain reference value for the comprehensive reuse of spent diatomaceous and the treatment of heavy metal.

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