活性炭负载锰催化Na2S2O8降解亚甲基蓝的研究

　　

摘要：采用浸渍法制备活性炭负载锰的催化剂，探讨了锰负载量、Na₂S₂O₈浓度、催化剂用量、亚甲基蓝的初始浓度、pH值以及无机离子对降解亚甲基蓝的影响，并运用XRD和SEM对该催化剂进行表征。实验结果表明：在锰负载量为6%、Na₂S₂O₈浓度为5.5g/L、催化剂用量为0.25g、亚甲基蓝初始浓度为14mg/L、pH为5的条件下，亚甲基蓝的降解率最高为97.1%。

关键词：活性炭；负载锰；催化；Na₂S₂O₈；亚甲基蓝

中图分类号：X52

The Degradation of Methylene Blue by Sodium Persulfate with Mn-loaded

Activated Carbon as Catalyst

Xu Qing-yan

（Chemistry and Chemical Engineering Department of MinJiang University, Fuzhou Fujian 350108）

Abstract: Activated carbon with manganese loaded as catalyst was prepared by using impregnation method, th-e influences of factors such as Mn loading account, sodium persulfate concentration, catalyst dosage, methylene blue initial concentration, pH value and different inorganic ions were investigated. And X-ray diffraction (XRD)，scanning electron microscopy (SEM) were used to characterize the catalyst. The results showed that the best Mn-loaded account of catalyst was 6% , and when the initial concentration of methylene blue was 14mg/L, the ox-idant dosage was 5.5g/L, the catalyst dosage was 0.25g, the pH value was 5, the best decolorization rate of methylene blue was 97.1%.

Key words: activated carbon；manganese-loaded；sodium persulfate；degradation；methylene blue

订阅方式：
①在线订阅（推荐）：www.sdchem.net.cn
②邮局订阅：邮发代号24-109

投稿方式：
①在线投稿（推荐）：www.sdchem.net.cn
　　作者只需要简单注册获得用户名和密码后，就可随时进行投稿、查稿，全程跟踪稿件的发表过程，使您的论文发表更加方便、快捷、透明、高效。
②邮箱投稿：sdhgtg@163.com sdhg@sdchem.net
　　若“在线投稿”不成功，可使用邮箱投稿，投稿邮件主题：第一作者名字/稿件题目。
投稿时请注意以下事项：
　　①文前应有中英文“题目”、“作者姓名”、“单位”、“邮编”、“摘要”、“关键词”；
　　②作者简介包括：姓名、出生年、性别、民族、籍贯或出生地、工作单位、职务或职称、学位、研究方向；
　　③论文末应附“参考文献”，执行国标GB/T7714-2005标准，“参考文献”序号应与论文中出现的顺序相符；
　　④注明作者的联系方式，包括电话、E-mail、详细的通讯地址、邮编，以便联系并邮寄杂志。
　　 　                                                                                   山东化工稿件修改细则