金属有机框架UiO-66-（COOH）2吸附亚甲基蓝的作用机制

被引：2

作者：

王洪婷

罗时万

郭志伟

张蓉

杨犁

覃远航

机构：

[1] 武汉工程大学化工与制药学院,绿色化工过程教育部重点实验室(武汉工程大学),新型反应器与绿色化工技术湖北省重点实验室(武汉工程大学)

来源：

武汉工程大学学报 | 2023年 / 45卷 / 02期

关键词：

UiO-66; 吸附; 亚甲基蓝; 作用机制;

D O I：

10.19843/j.cnki.CN42-1779/TQ.202204028

中图分类号：

X703 [废水的处理与利用]; TQ424 [吸附剂];

学科分类号：

摘要：

为减少染料废水的排放造成的环境污染，分别采用溶剂热法和机械搅拌法制备了金属有机骨架材料UiO-66和羧基改性材料UiO-66-（COOH）2，研究了两种吸附剂对有机染料亚甲基蓝（MB）的吸附性能，并探讨了相应的吸附机理。结果表明：UiO-66和UiO-66-（COOH）2对MB均具有较好的吸附能力，UiO-66-（COOH）2对MB的平衡吸附量达416.95 mg/g，比UiO-66材料提高了38.6%。UiO-66-（COOH）2对MB的高效吸附是静电相互作用、π-π相互作用和氢键作用等多重机制共同作用的结果。吸附过程符合拟二级动力学模型，吸附平衡符合Freundlich吸附模型。

引用

页码：139 / 147

页数：9

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