《Table 3 Pseudo-first-and second-order parameters for the adsorption》
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《Functionally Modified Cellulose Nanocrystals as an Adsorbent for Anionic Dyes》
The adsorption kinetics of CNC-PDMAEMA based on the pseudo first-and second-order models are shown in Fig.7，and the estimated kinetic parameters are listed in Table 3.At the tested temperatures，the R2 for the second-order model was>0.99，while that for the firstorder model was found to be within the range 0.84~0.88.Moreover，the Qe，cal values（81.56 mg/g at 20℃，89.58mg/g at 30℃）for the pseudofirst-order model were much lower than the Qe，exp values（99.69 mg/g at 20℃，114.80mg/g at 30℃）.On the other hand，the Qe，cal values（111.11mg/g at 20℃，125.00 mg/g at30℃）for the second-order model matched well with the Qe，exp values.This indicates that the adsorption kinetics of CNC-PDMAEMA were better described by the pseudosecond-order model.Thissuggests that the adsorption of the anionic dye onto the CNC-based adsorbent was mainly controlled by chemisorption[25-26].The pseudo-second-order kinetics of dye adsorption have also been reported for other biomass-based materials[25，27].
| 图表编号 | XD0020754400 严禁用于非法目的 |
|---|---|
| 绘制时间 | 2018.10.01 |
| 作者 | Ming Li、ShiYu Fu |
| 绘制单位 | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology、State Key Laboratory of Pulp and Paper Engineering, South China University of Technology |
| 更多格式 | 高清、无水印（增值服务） |
