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从废水中通过改性肥生物炭吸附Cd (II) 的特性和机制

Hua Qiao¹, Shuhao Zhang², Xin Liu²

¹College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, People's Republic of China. 2018760@cqust.edu.cn.

Environmental science and pollution research international

|December 14, 2023

概括

一种新的改性生物炭,KFBC1,有效地从废水中去除. 这种生物炭具有很高的吸附能力,为处理被污染的水源提供了一个有前途的解决方案.

科学领域:

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

背景情况:

废水中的污染对粮食安全和公共卫生构成重大风险.
开发高效吸附剂对于从污染水中去除至关重要.

研究的目的:

为了合成和表征新的修饰生物碳,以有效地去除.
研究废水中 (Cd(II)) 的最佳修饰生物炭的吸附性能和机制.

主要方法:

使用K2FeO4作为修饰剂,从肥中制备改性生物碳.
生物炭性质的表征 (表面结构,毛孔结构,功能组,氧化铁的存在).
批量吸附实验,以评估Cd (II) 去除效率,动力学和异热量.

主要成果:

最佳修饰的生物炭KFBC1表现出粗的表面,丰富的毛孔和许多功能组,并引入了氧化铁.
对于Cd,KFBC1的最大吸附能力为330.06 mg/g,明显高于原始生物炭.
吸附遵循准二次动力学和兰木尔等热量,随着剂量和pH值的增加,去除速度会增加.

结论:

KFBC1是一种新且高效的吸附剂,用于从废水中去除.
机制包括孔隙吸附,离子交换,表面沉, -π电子相互作用和功能组复合.
KFBC1为污染的废水提供了一种可行的处理剂.

关键词:

吸附机制是一种吸附机制.生物炭是一种生物炭.是的组成部分.的便是一种便.修改修改修改是一个废水是废水,废水就是废水.

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