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在低和高初始度下,对来自骨的碳/酸复合物的固定机制的机械洞察

Qihui Yu¹, Hao Liu², Guocheng Lv¹

¹Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.

The Science of the total environment

|July 31, 2023

概括

含碳的酸 (CHAP) 有效地从水中去除. 它的机制因度而异,主要涉及化学沉,但也涉及吸附和离子交换.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学化学化学

背景情况:

重金属污染对环境和健康构成重大风险.
来自动物骨的酸是一种有前途的材料,用于去除.
由于研究条件不同,现有关于酸的去除机制的研究尚未得出结论.

研究的目的:

从牛骨中合成含碳的酸 (CHAP).
在不同初始度下研究CHAP的去除机制.
阐明各种相互作用在CHAP的固定中所起的作用.

主要方法:

通过牛骨的热解合成CHAP.
使用XRD瑞特维尔德提炼,FTIR,XPS和HRTEM进行表征.
在初始Pb²⁺度低和高的情况下,对去除机制的分析.

主要成果:

CHAP 证明了优异的除效率.
在低Pb²⁺度下,化学沉占主导地位 (94.1%),复杂化和-π相互作用的贡献较小.
在高Pb2+度下,化学沉仍然是主要的 (74.68%),其他机制的贡献增加和离子交换的出现.

结论:

是一种有效的材料,用于将固定在水中.
酸的去除机制取决于度.
了解这些机制为水利修复策略提供了关键的见解.

关键词:

骨生物炭是一种生物炭.Pb 移除移除的方法移除机制移除机制瑞特维尔德精炼瑞特维尔德精炼

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