MIL-101(Fe)对草甘膦的吸附行为研究 |
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作者姓名: | 蒋实 黄芳 林晓宇 吴桂萍 崔龙哲 |
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作者单位: | 中南民族大学资源与环境学院;黄石市环境保护研究所 |
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基金项目: | 湖北省自然科学基金资助项目(2015CFB550). |
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摘 要: | 采用溶剂热法制备MIL-101(Fe)用作吸附材料,借助XRD、SEM、XPS及氮气吸脱附测试对所制材料的形貌及结构进行表征,研究了溶液pH值、反应时间、溶液浓度以及温度对其吸附草甘膦行为的影响。结果表明,当pH为3时,MIL-101(Fe)对草甘膦的吸附效果最佳,且随着温度的升高,MIL-101(Fe)对草甘膦的吸附速率明显增加,吸附过程符合拟二级动力学,等温吸附实验数据符合Langmuir和Temkin模型。MIL-101(Fe)吸附草甘膦属自发吸热的化学吸附反应,MIL-101(Fe)的中心金属Fe与草甘膦中O的配位在吸附过程中起主要作用。
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关 键 词: | MIL-101(Fe) 草甘膦 吸附行为 等温吸附 吸附动力学 吸附热力学 |
收稿时间: | 2018/9/18 0:00:00 |
Adsorption of glyphosate by MIL-101(Fe) |
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Authors: | Jiang Shi Huang Fang Lin Xiaoyu Wu Guiping and Cui Longzhe |
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Institution: | College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074,China,Huangshi Institute of Environmental Sciences,Huangshi 435003,China,College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074,China,College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074,China and College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074,China |
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Abstract: | |
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Keywords: | MIL-101(Fe) glyphosate adsorption behavior isothermal adsorption adsorption kinetics adsorption thermodynamics |
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