糯米粉负载纳米零价铁去除溶液中U(Ⅵ)的研究
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陈蓉,桑伟璇,李小燕,何登武,王杨,曹小岗
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Removal of U(Ⅵ) in aqueous solution by nano zero-valent iron loaded with glutinous rice powder
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Rong Chen,Weixuan Sang,Xiaoyan Li,Dengwu He,Yang Wang,Xiaogang Cao
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表2 不同温度下GR-nZVI吸附U(Ⅵ)的动力学模型参数
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温度/K | 准一级动力学模型 | | 准二级动力学模型 | qe/(mg·g-1) | k1/(L·min-1) | R2 | qe/(mg·g-1) | k2/(g·mg-1·min-1) | R2 | 293 | 7.801 1 | 0.001 3 | 0.464 2 | | 23.724 8 | 0.026 4 | 0.999 9 | 298 | 6.776 8 | 0.001 1 | 0.664 2 | 24.408 1 | 0.031 0 | 0.999 9 | 303 | 6.703 8 | 0.001 3 | 0.714 0 | 24.740 2 | 0.023 9 | 0.999 9 | 308 | 6.228 3 | 0.001 1 | 0.560 9 | 24.881 8 | 0.033 2 | 0.999 9 |
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