光波-微波辅助核桃壳活性炭对酸性品红吸附研究

Adsorption of acid fuchsin by walnut shell activate carbon in light and microwave

为实现新疆果壳的资源化利用,以核桃壳作为前驱体,用ZnCl2改性,于600℃马弗炉中活化加热50min制备活性炭,以微波、光波、光波组合c1、光波组合c2辅助活性炭吸附酸性品红染料溶液,探讨辐射时间、染料浓度、活性炭用量对吸附效果的影响。通过正交试验分析综合考虑,选取吸附剂用量0.1g、染料初始浓度800mg/L、吸附时间2.5min为最佳组合,吸附量可达184.525mg/g,去除率为92.26%。

In order to realize the resource utilization of Xinjiang walnut shells,using walnut shells as precursor and ZnCl_(2) as a modifier,an activated carbon was prepared by heating at 600℃ for 50min in muffle furnace.Microwave,light wave,light wave combination C1 and light wave combination C2 were used to assist the activated carbon adsorption towards acid fuchsin dye solution.The effects of radiation time,dye concentration and activated carbon dosage on adsorption efficiency were investigated.The optimal combination of adsorbent dosage of 0.1g,initial dye concentration of 800mg/L and adsorption time of 2.5min was determined.The adsorption capacity could reach to 184.525mg/g and the removal rate was 92.26%.