脐橙皮渣活性炭对亚甲基蓝的吸附

Adsorption of Methylene Blue on Activated Carbon Derived from Navel Orange Peel

利用脐橙皮渣活性炭对水中亚甲基蓝进行吸附.探讨了吸附时间、pH值、初始浓度、活性炭用量等因素对吸附的影响.研究结果表明,脐橙皮渣活性炭对亚甲基蓝具有较好的吸附效果,最大吸附量可达40.0 mg/g.最佳吸附条件为:吸附时间80 mins,pH10.00,初始浓度5.0 mg/L,炭粉投入量0.02 g.亚甲基蓝在脐橙皮渣活性炭上的吸附等温线符合Langmuir等温式.

Methylene blue in the water was absorbed by active carbon derived from navel orange peel.The effect of solution pH,contact time,initial concentratio n and carbon dosage on adsorption was tested.The results showed that the navel orange peel active carbon had good absorption to methylene blue,the maximum ads orption capacity was 40 mg/g.The feasible conditions of adsorption were gained： the adsorption time was 80 mins,pH was 10.00,the concentration of methylene b lue was 5.0 mg/L and the sorbent dosage was 0.02 g.Adsorption isotherms follow the Langmuir models.