改性银杏壳对结晶紫的吸附  

Adsorption of Crystal Violet by Modified Ginkgo Biloba Shell

作　　者：宋娟[1] 盛杰 Song Juan;Sheng Jie(Taizhou University,Taizhou 225300,China;College of Chemistry and Materials Science,Shanghai Normal University,Shanghai 200234,China)

机构地区：[1]泰州学院,江苏泰州225300 [2]上海师范大学化学与材料科学学院,上海200234

出　　处：《山东化工》2020年第12期232-233,236,共3页Shandong Chemical Industry

摘　　要：以盐酸改性处理后的银杏壳作为吸附剂,对结晶紫染料溶液的吸附性能进行了研究。结果表明:在室温条件下pH值为10时,改性银杏壳对结晶紫吸附60min,其脱色率达99%以上。Langmuir等温线拟合效果较好,表明吸附是单层吸附。吸附过程符合准二级动力学模型,主要是按化学吸附进行。The adsorption properties of crystal violet dye solution were studied by using ginkgo biloba shell modified by hydrochloric acid as adsorbent.The results showed that the decolorization rate of the modified Ginkgo biloba shell was more than 99%when it adsorbed crystal violet for 60 minutes at room temperature and pH was 10.The Langmuir isotherm fitted well,indicating that the adsorption was monolayer.The adsorption process is in accordance with the quasi second-order kinetic model,which is mainly carried out according to chemical adsorption.

关 键 词：改性银杏壳 结晶紫 吸附动力学 吸附等温线 

分 类 号：X703[环境科学与工程—环境工程]