生物学杂志

生物学杂志

• 研究报告 • 上一篇    下一篇

梧桐树皮活性炭对水中铬离子吸附性能研究

  

  1. 1. 合肥学院 生物与环境工程系， 合肥 230601；
    2. 安徽省环境污染防治与生态修复协同创新中心，合肥 230601
  • 出版日期:2016-10-18 发布日期:2016-10-18
  • 通讯作者: 金 杰，教授，研究方向为生物及环境工程领域，E-mail：amushui@hfuu.edu.cn
  • 作者简介:王 磊，硕士研究生，助理实验师，研究方向为环境工程，E-mail：592462275@qq.com
  • 基金资助:
    合肥学院院级学科带头人培养对象项目(2014dtr02)；合肥学院科研基金(0395581561)

Study on adsorption property of Cr6+ by sycamore bark activated carbon

  1. 1. Department of Biological and Environmental Engineering， Hefei University， Hefei 230601； 2.Collaborative Innovation Center for Environmental Pollution Prevention and Ecological Restoration of Anhui Province， Hefei 230601， China
  • Online:2016-10-18 Published:2016-10-18

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摘要： 研究了梧桐树皮活性炭对水中铬离子的吸附性能，探讨了其吸附机理，得出相关热力学参数。研究结果表明用0.4 g梧桐树皮活性炭处理50 mL的100 mg/L的Cr6+溶液，在25℃下，pH 2，静置吸附180 min后Cr6+的去除率可以达到99.8%；梧桐树皮活性炭对Cr6+的吸附符合Langmuir模型，10℃时的饱和吸附量为7.888 mg/g，为单分子层吸附。

关键词: 梧桐树皮, 生物质, 吸附, 改性

Abstract: The adsorption property of Cr6+ by sycamore bark activated carbon was studied. The related thermodynamic parameters were obtained. The research results showed that using 0.4 g sycamore bark activated carbon for the treatment of 50 mL Cr6+ solution concentration of 100 mg/L, under the condition of temperature, pH and adsorption time of 25℃, 2.0 and 180 min, the removal rate of Cr6+ reached to 99.8%. Sycamore bark activated carbon adsorption of Cr6+ conformed to the Langmuir model, and it the saturated adsorption capacity was 7.888 mg/g when the temperature was 10℃.

Key words: sycamore bark, biomass, adsorption, modification