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胺海绵的功能化,以有效地从酸性漏物中回收Pt(IV)

Zhaojiang Wu¹, Zheng Lin¹, Shengye Wang¹

¹College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China.

Environmental science and pollution research international

|June 27, 2023

概括

一种新的吸附剂,ML/ACPG海绵,有效地从工业酸性废物中回收 (Pt(IV)). 这种耐用材料具有很高的吸附和脱吸能力,为回收提供了一个实用的解决方案.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
化学工程是化学工程的重要组成部分.

背景情况:

从工业废物中回收白金至关重要.
在酸液中主要以Pt (IV) 离子的形式存在.
需要有效和选择性吸附Pt (IV).

研究的目的:

开发一种高效的吸附剂,用于Pt(IV) 恢复.
描述吸附剂的结构和功能组.
评估吸附剂在吸附,脱附,稳定性和恢复潜力的性能.

主要方法:

使用酸盐-和聚乙烯胺-甲 (ML/ACPG) 将碳基和氨基基组移植到美拉胺海绵上.
使用扫描电子显微镜 (SEM),富里埃变换红外光谱 (FTIR) 和X射线光电子光谱 (XPS) 的表征.
在酸性和盐溶液中进行吸附/脱附实验和稳定性测试.

主要成果:

ML/ACPG海绵表现出树状结构,并引入了氨基,碳基和基组.
在pH1下,最大吸附能力达到101.1mg/L.
使用HCl和硫尿素实现了高效的脱吸,在5个循环中>83.3%的效率.
吸附剂在3M HNO3和NaCl中表现出极好的稳定性.

结论:

ML/ACPG海绵是一种高效和稳定的吸附剂,用于Pt(IV) 恢复.
吸附机制涉及静电吸引和与碳酸基的协调.
开发的吸附剂显示出在从酸性漏物中回收的实际应用中具有显著的潜力.

关键词:

双交联的修改是双交联的胺海绵是一种胺海绵.Pt(IV) 恢复恢复的时间.吸附剂回收利用的回收利用方法

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