活性炭吸附罗丹明B的研究

文章以活性炭为吸附剂，对罗丹明B溶液进行吸附。考察了活性炭加入量、pH值和温度对吸附的影响以及吸附动力学。结果表明，随着活性炭加入量的逐渐增加，吸附值逐渐减小；随着pH逐渐升高，吸附值呈下降趋势。吸附值随温度升高呈下降趋势，表明活性炭对罗丹明B溶液的吸附是一个放热过程。活性炭对罗丹明B的吸附较好的符合Langmuir吸附模型。

Study on Adsorption Rhodamine B on Activated Carbon

In this paper, adsorption of Rhodamine B as model wastewater of dye in aqueous solutions on the activated carbon was investigated. The effects of the amount of the activated carbon, pH value and the temperature on the adsorption were studied. The results show that the adsorption values decrease as the amount of the activated carbon and pH value increase. The adsorption values decrease as the temperature increases, which indicates the adsorption of Rhodamine B in aqueous solutions on the activated carbon is an exothermic process. The kinetics results match Langmuir isotherm model.