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酸的制备及其从水溶液中去除多余的化物

Yiming Zou^1,2,3,4, Yaoting Wang^1,2,3,4, Junfu Wang^1,2,3,4

¹Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University Lianyungang 222005 China xieruliang2007@163.com.

|August 20, 2024

概括

一种新的酸 (Xq-HAP) 制备方法有效地从水中去除多余的化物离子,超过了传统方法. 这种先进的吸附剂具有高容量和快速去除,对于改善水质和保护健康至关重要.

科学领域:

环境科学环境科学
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:

饮用水中的过量化物对牙和骨健康构成重大风险.
传统的水处理方法可能无法完全有效地去除化物离子.
氧酸盐是吸附水溶液中的污染物的一个有前途的材料.

研究的目的:

开发和评估一种用于制备氧酸盐以去除化物的新方法.
为了比较化物吸附性能,用新和传统方法制备的酸.
研究吸附机制和影响因素,以有效地去除化物.

主要方法:

用两种方法合成酸:一种新方法 (Xq-HAP) 和一种传统方法 (Yt-HAP).
使用SEM,XRD,BET,XPS和FTIR进行了材料表征.
进行了批量吸附实验,以评估接触时间,吸附剂剂量,化物度,pH值和温度的影响.

主要成果:

与Yt-HAP相比,新型Xq-HAP具有更高的吸附能力 (29.04 mg g-1) 和清除率.
在大约3小时内达到吸附平衡,这表明离子吸收迅速.
吸附动力学和异热学研究揭示了一个单层化学吸附过程,具有离子交换,静电相互作用和复杂化作为关键的去除机制.

结论:

新的酸制备方法产生了一种高效的吸附剂,用于从水中去除化物离子.
Xq-HAP显示了在水处理中实际应用的巨大潜力,以减轻化物污染.
吸附剂在五个吸附-脱附周期后保持了相当大的容量 (23 mg g-1),这表明可重复使用性很好.

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