| 壳聚糖黄原酸钠对Cr(Ⅲ)离子的吸附性研究 |
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| 引用本文： | 赵博,赵晓云,李志洲.壳聚糖黄原酸钠对Cr(Ⅲ)离子的吸附性研究[J].化工科技市场,2010,33(1):19-22. |
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| 作者姓名： | 赵博 赵晓云 李志洲 |
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| 作者单位： | 陕西理工学院化学与环境科学学院,陕西汉中,723001 |
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| 摘 要： | 研究了不同粒径的二硫代氨基甲酸改性壳聚糖(壳聚糖黄原酸钠,DTC-CTS)对Cr3+的吸附性能,通过正交试验研究确定了最优吸附条件。结果表明:DTC-CTS对Cr3+的最佳吸附条件为pH7.5,温度40℃,时间3 h,Cr3+溶液浓度100 mg/L,此条件下Cr3+的去除率为95.99%。进行二次吸附处理后,Cr3+溶液浓度可降至0.89 mg/L。
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| 关 键 词： | 壳聚糖黄原酸钠 Cr^3＋ 吸附 |
Study on adsorption properties of chitosan xanthenes sodium for Cr (Ⅲ) |
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| Zhao Bo,Zhao Xiaoyun,Li Zhizhou.Study on adsorption properties of chitosan xanthenes sodium for Cr (Ⅲ)[J].Chemical Technology Market,2010,33(1):19-22. |
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| Authors: | Zhao Bo Zhao Xiaoyun Li Zhizhou |
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| Institution: | (School of Chemical ＆ Environmental Sciences, Shaanxi University of Technology,Hanzhong 723001, China) |
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| Abstract: | Adsorption properties of different diameter dithiocarbamate -modified chitosan （chitosan xanthenes sodium DTC - CTS） with different diameter for Cr^3＋ were studied. Adsorption of optimum conditions were researched and confirmed through orthogonal experiment. The results showed that the optimum adsorption conditions for Cr^3＋ were as follows： pH = 7.5 ,absorption temperature was 40 ℃ ,adsorption time was 3 h,and mass concentration of Cr^3＋ solution was 100 mg/L. Under above conditions, removal rate for Cr^3＋ was 95.99%. Adsorbing secondly, the mass concentration of Cr^3＋ concentration can be reduced to 0.89 mg/L. |
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| Keywords: | Cr3+ |
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