大豆秸秆灰和香蕉皮对罗丹明B的去除比较

Comparison of Rhodamine B Removal by Soybean Straw Ash and Banana Peel

为了达到使用不同吸附剂对溶液中罗丹明B进行去除比较以及方便研究者参考借鉴的目的,本实验分别采用大豆秸秆灰和香蕉皮粉作为吸附剂,去除溶液中的罗丹明B。结果表明,用水处理过的大豆秸秆灰和用1 mol·L-1 HCl溶液处理过的香蕉皮粉作为吸附材料,对罗丹明B的去除效果最佳;在吸附过程中,罗丹明B初始浓度为2.5 mg·L-1、pH为7、吸附时间为60 min、吸附剂投入量为2 g·100 mL-1时,去除效果最好,但是不可多次使用。大豆秸秆灰和香蕉皮粉对罗丹明B的最佳去除效果可分别达到93.7%、92.1%。

In order to use different adsorbents to compare the removal rate of Rhodamine B in the solution and the researchers can use it for reference,soybean straw ash and banana peel powder were used as adsorbent to remove Rhodamine B respectively.The results show that the removal of Rhodamine B is the best with soybean straw ash treated with water and banana peel powder treated with 1 mol·L-1 HCl as the adsorbent.In the process of adsorption,when the initial concentration of Rhodamine B is 2.5 mg·L-1,pH is 7,adsorption time is 60 min,and adsorbent dosage is 2 g·100 mL-1,the removal effect is the best,but it can not be reused many times.The best removal effects of soybean straw ash and banana peel powder on Rhodamine B are 93.7%and 92.1%respectively.