乔春蕾;殷悦;徐高扬;许玉星;刘长青;

• 1:青岛理工大学环境与市政工程学院

摘要(Abstract)：

研究了用赤泥(RM)负载氧化锌(ZnO)制备新型吸附剂RM-ZnO并用于从刚果红(CR)染料中吸附去除刚果红,通过分析形貌、元素组成、晶体形态及官能团和化学键,探讨了吸附机制,并通过试验考察了RM-ZnO对刚果红的吸附效果。结果表明:在温度25℃、中性条件下,RM-ZnO对刚果红的平衡吸附量达305.17 mg/g,吸附效果优于纯ZnO吸附剂;吸附过程符合Langmuir等温吸附模型和准二级动力学模型,吸附反应为吸热反应,吸附机制涉及化学作用和物理作用。化学作用可能是刚果红上的磺酸基与RM-ZnO上的Zn原子发生配位,物理作用可能是刚果红上去质子化的磺酸基与RM-ZnO质子化后的氧原子产生的静电引力。

关键词(KeyWords)： 赤泥;氧化锌;刚果红;吸附

Abstract:

Keywords:

基金项目(Foundation): 山东省重大科技创新工程项目(2018YFJH0902)

作者(Authors): 乔春蕾;殷悦;徐高扬;许玉星;刘长青;

DOI: 10.13355/j.cnki.sfyj.2022.01.014

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