天然沸石对染料的吸附研究

Adsorption of Dye by the Natural Zeolite

采用经济且吸附效果良好的天然沸石作为吸附剂进行了染料藏红T、酸性紫红和氨基黑10B的脱色实验,探讨了溶液的pH值、天然沸石的用量、吸附时间以及染料起始浓度对天然沸石吸附染料的影响,且其吸附等温线过程符合Langmuir和Freundlich吸附模式。结果表明:天然沸石对染料藏红T、酸性紫红和氨基黑10B的最大吸附容量分别为1.1715 mg/g、1.0065 mg/g和0.1069 mg/g。

The natural zeolite was investigated as an inexpensive and effective adsorbent for the adsorption of Amido Black 10B,Acid Red and Safranine T from its queous solution respectively.The effect of parameters such as the solution of pH,contact time,the doze of the natural zeolite and the initial concentration of dye was examined.The adsorption isotherm was well fitted to both the Langmuir and Freundlich models.The maximum adsorption capacity of the natural zeolite for Safranine T,Acid Red and Amido Black 10B was 1.1715 mg/g,1.0065 mg/g and 0.1069 mg/g respectively.