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通过吸附在四种不同的基托形态上去除酸红27的比较研究

Hongli Wu^1,2, Jiaying Zhou^1,2, Sai Zhang³

¹College of Textile and Light Industry, Inner Mongolia University of Technology, Hohhot 010081, China.

|April 13, 2024

概括

酸水凝 (CSH) 由于其低晶度和高表面积,证明了酸红27染料的优越吸附性. 这一发现突出了结晶性作为影响基托的关键因素.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
聚合物科学聚合物科学

背景情况:

酸盐是一种多功能生物聚合物,在废水处理中具有潜在的应用.
了解不同基托形态的结构-性质关系对于优化染料去除至关重要.
酸红27是一种常见的合成染料,对环境造成了关注.

研究的目的:

为了研究基托桑形态对其吸附性质对酸红27去除的影响.
为了将结构特征 (晶度,表面积) 与吸附性能相关联.
为了阐明吸附机制和动力学.

主要方法:

使用SEM,XRD,ATR-FTIR和BET合成和描述了四种奇托桑形态:水凝 (CSH),气凝 (CSA),粉末 (CSP) 和电旋纳米纤维 (CSEN).
吸附实验,以确定吸附速度和容量.
动力和同热模拟 (伪二次和兰格穆尔模型).

主要成果:

所有的基托桑形态都遵循伪二阶动力学和兰格穆尔等温模型.
吸附性能按照以下顺序进行:CSH > CSA > CSP > CSEN.
CSH表现出最高的最大吸附能力 (2732.2 mg/g),这归因于其低晶度 (0.41%) 和大特定表面积.

结论:

素结晶性是控制红酸27的吸附率和吸附能力的主要因素,而不是特定表面积.
基托结构中的较低晶度会提高吸附效率.
CSH是一种高效的吸附剂,用于清除酸红色27.

关键词:

酸性染料是一种酸性染料.吸附能力和吸附速度的速度.基多酸盐的使用方法结晶性结晶性是指结晶性.结构结构结构结构

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