空心氧化亚铜纳米颗粒吸附甲基橙性能研究  

Investigation of adsorption features of hollow cuprous oxide nanoparticles to methyl orange

作　　者：代志旷 杨爱玲[1] 王乐乐[1] 张戈辉[1] 包西昌[2] 

机构地区：[1]中国海洋大学物理系,青岛266100 [2]青岛中国科学院生物能源与过程研究所,青岛266101

出　　处：《纳米科技》2016年第1期60-65,共6页

摘　　要：摘要：如何有效地去除污水中的有机染料是人们一直关注的问题。本文通过两步法合成了Cu2O纳米颗粒，TEM分析显示，纳米颗粒为中空的球壳结构，直径大小约200nm。我们用空心Cu2O纳米材料与不同浓度的甲基橙（MO）溶液混合，在黑暗的环境下吸附150min左右，以观测其对甲基橙分子的吸附能力。实验结果表明，空心Cu2O纳米颗粒对MO分子的吸附符合准二级吸附动力学模型。0．7g／L的空心Cu2O纳米颗粒与80mg／L的Mo溶液在30min时就已经达到饱和．吸附率高达99．7％。其吸附等温线符合Freundlich吸附等温线模型。How to effectively remove the organic dyes in the sewage, is a problem that many people have been concerning about. In this paper, hollow cuprous oxide nanoparticles were synthesized by two steps. TEM analysis shows that the nanoparticles are hollow spherical shell structure, and the diameter is about 200 nm. Adsorption capacity was studied by mixing nanoparticles with different concentrations of methyl orange （MO） solution in dark for 150 min. Experimental results show that the adsorption process is in accordance with the pseudo-second order reaction kinetic equation model. The adsorption reached saturation in 30 min with 99.7% adsorption rate when 0.7 g/L cuprous oxide solution mixed with 80 mg/L MO solution. The adsorption isotherms fit the adsorption model of Freundlich isotherm.

关 键 词：空心氧化亚铜纳米颗粒 甲基橙溶液 吸附动力学 吸附等温线 

分 类 号：O647.3[理学—物理化学]