SiO_2气凝胶的制备、改性及其重金属离子吸附性能的研究进展
Research progress in SiO_2aerogel preparation, modification and adsorption performance of heavy metal ions
查看参考文献48篇
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文摘
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废水中重金属离子污染对人类健康造成了严重危害,吸附法因其高效经济、选择性好等优势备受关注。SiO_2气凝胶具有高比表面积(>500m~2/g)、高孔隙率(>80%)、可控的表面基团及稳定的物理化学性质等特点,是一种具有潜力的重金属离子吸附剂。本文首先简述了SiO_2气凝胶的制备及其对微观结构的影响研究进展,重点综述了SiO_2气凝胶官能化方法及其吸附废水中重金属离子的吸附性能和影响因素,并分析了其吸附机理和吸附动力学过程,指出了实现SiO_2气凝胶低成本短流程的可控制备、有效官能化及高效吸附多种重金属离子是未来的发展方向。 |
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其他语种文摘
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The pollution of heavy metal ions in wastewater has caused serious harm to human health, and the adsorption method has attracted much attention because of its high efficiency,economy, simplicity,and good selectivity.SiO_2aerogel is a potential adsorbent for removal of heavy metal ions in wastewater due to its high specific surface area(>500m~2/g),high porosity(>80%),controllable surface group and good physical/chemical stability.Herein,the preparation methods of SiO_2aerogel and its effect on microstructure were briefly introduced,focusing on the functionalization methods of SiO_2aerogel and the adsorption performance and factors of functionalized SiO_2 aerogel for the adsorption of heavy metal ions in wastewater,and the adsorption mechanism and adsorption kinetics process of functionalized SiO_2aerogel as heavy metal ions adsorbent were analyzed.It was pointed out that the controllable preparation with low cost and short process,effective functionalization and efficient adsorption of various heavy metal ions are the future development directions of SiO_2aerogels as absorbent. |
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来源
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材料工程
,2023,51(9):1-12 【核心库】
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DOI
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10.11868/j.issn.1001-4381.2022.000216
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关键词
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SiO_2气凝胶
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重金属离子
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制备方法
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官能化
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吸附等温模型
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吸附动力学模型
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地址
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北京科技大学冶金与生态工程学院, 北京, 100083
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语种
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中文 |
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文献类型
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综述型 |
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ISSN
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1001-4381 |
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学科
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化学 |
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基金
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国家自然科学基金联合基金项目
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文献收藏号
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CSCD:7574264
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