| 沙质滩涂颗粒物对磷酸盐的吸附过程研究 |
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| 引用本文： | 张敏波,邵慧君,刘丹,黄辉.沙质滩涂颗粒物对磷酸盐的吸附过程研究[J].广州化工,2014(3):31-33. |
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| 作者姓名： | 张敏波 邵慧君 刘丹 黄辉 |
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| 作者单位： | 宁波工程学院,浙江宁波315016 |
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| 基金项目： | 宁波市教育科学规划研究课题（YGH032）;王伟明助创基金项目（2013005）. |
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| 摘 要： | 以沙质滩涂颗粒物对磷酸盐的吸附过程为对象,通过拟一级和拟二级方程进行吸附动力学研究,采用Langmuir和Freundlich方程描述平衡吸附等温线,并计算得到吸附热力学参数。结果表明:拟二级动力学模型能够较好拟合吸附过程,Langmuir模型能更好的描述吸附等温线,吸附是焓推动作用、自发且放热的过程。
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| 关 键 词： | 磷酸盐 吸附 动力学 热力学 |
Adsorption Characteristics of Phosphate on the Sandy Tidal |
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| ZHANG Min - bo,SHAO Hui -jun,LIU Dan,HUANG Hui.Adsorption Characteristics of Phosphate on the Sandy Tidal[J].GuangZhou Chemical Industry and Technology,2014(3):31-33. |
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| Authors: | ZHANG Min - bo SHAO Hui -jun LIU Dan HUANG Hui |
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| Affiliation: | (Ningbo University of Technology, Zhejiang Ningbo 315016, China) |
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| Abstract: | The adsorption of phosphate on sandy beach particles was studied. Adsorption kinetics were evaluated by pseudo - first and pseudo - second order model, adsorption isotherms were fitted by Langmuir and Freundlich model, and thermodynamics parameters were calculated. The results showed that the adsorption kinetics was identical with pseudo - second order equation, Langmuir model fitted better with adsorption isotherms, and the negative values of thermodynamic parameters indicated a spontaneous, exothermic and enthalpy promoting process. |
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| Keywords: | phosphate adsorption kinetics thermodynamics |
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