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从飞灰中合成的兰改性托伯莫里特,用于有效的酸盐去除

Zehua Wang¹, Guanyu Zhu², Yongwei Zhou²

¹School of Resources and Environment, Nanchang University, Nanchang, 330031, China. wangzehua@ncu.edu.cn.

Environmental science and pollution research international

|April 5, 2024

概括

兰改性飞灰 (LTFA) 有效地从水中去除酸盐. 最好的吸附剂,LTFA1,达到282.51毫克P/g的高容量,为净化水提供了可持续的解决方案.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
水处理处理水的方法

背景情况:

酸盐污染是一个重要的环境问题,导致了肥胖.
为了从废水中去除酸盐,需要有效的吸附剂.
飞灰是一种废物产品,为开发低成本吸附剂提供了潜力.

研究的目的:

为了合成和表征改性飞灰 (LTFA) 用于酸盐去除.
为了研究LTFA在各种条件下的吸附性能.
探索酸盐对LTFA的吸附机制.

主要方法:

来自飞灰 (LTFA) 的兰改性托伯莫里特,用不同度的兰合成.
使用X射线衍射,FTIR,SEM和BET表面积分析进行表征.
在不同的pH值下进行的酸盐吸附研究,使用Elovich和Temkin模型进行分析.

主要成果:

LTFA 样本,主要是半孔性托伯莫里特-11 Å,显示出高表面积和高孔积.
在pH 3下,LTFA1 (0.15M) 呈现出最高的酸盐吸附能力 (282.51 mg P/g).
吸附动力学遵循埃洛维奇模型,异温体最适合于特姆金模型.
LTFA1证明了对其他常见离子的选择性酸盐吸附,并形成了内部球体复合体.

结论:

兰改性飞灰是一种高效的吸附剂,用于酸盐的去除.
与其他改性吸附剂相比,LTFA1表现优越.
这项研究为在水处理应用中利用飞灰提供了可持续的途径.

关键词:

吸附方式吸附方式吸附方式飞行灰的飞行灰兰的修改方法酸盐是一种酸盐.托伯莫里特是一种多伯莫里特.

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