| 纳米TiO2吸附水体中低浓度磷的实验研究 |
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| 引用本文： | 侯芳,郑伟.纳米TiO2吸附水体中低浓度磷的实验研究[J].济源职业技术学院学报,2021,20(1):65-69. |
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| 作者姓名： | 侯芳 郑伟 |
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| 作者单位： | 济源职业技术学院医学护理系,河南济源459000 |
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| 摘 要： | 研究了纳米TiO2粉体对低浓度含磷水体的吸附性能。考察了溶液pH值、吸附剂用量、共存离子等对除磷效果的影响。研究结果表明,纳米TiO2粉体在pH值为3~9范围内的溶液中都能有效去除磷酸盐,去除率均在95%以上。纳米TiO2粉体对磷酸根的选择吸附性强,吸附动力学符合准二级动力学模型,吸附等温线符合Freundlich模型。吸附反应主要以化学吸附为主,存在多分子层吸附。
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| 关 键 词： | 纳米TiO2粉体 吸附 除磷 |
Experimental Research on Nano-TiO2 Adsorbing Low Concentration Phosphorus in Water |
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| HOU Fang,ZHENG Wei.Experimental Research on Nano-TiO2 Adsorbing Low Concentration Phosphorus in Water[J].JOurnal of Jiyuan Vocational and Technical College,2021,20(1):65-69. |
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| Authors: | HOU Fang ZHENG Wei |
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| Institution: | (Department of Nursing,Jiyuan Vocational and Technical College,Jiyuan 459000,Henan) |
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| Abstract: | The adsorption property of nano-TiO2 powder for low concentration phosphorus solution is studied.The effects of pH value,adsorbent dosage and coexisting ions on phosphorus removal are studied.The results show that the phosphate can be effectively removed by nano-TiO2 powder in the pH range of 3~9,and the removal rate is more than 95%.The nano-TiO2 powder has strong selective adsorption for phosphate.The adsorption kinetics is in accordance with the quasi second order kinetic model,and the adsorption isotherm is in accordance with the Freundlich model.The adsorption reaction is mainly chemical adsorption,and there is multi molecular layer adsorption. |
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| Keywords: | nano-TiO2powder adsorption phosphorus removal |
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