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水热N-兴奋剂,磁化和球磨具有协同功能的污泥生物炭设计及其从水中选择性吸附微量度的硫甲醇

Yongfei Ma¹, Yanlai Yao², Zhikang Deng³

¹Xianghu Laboratory, Hangzhou, 311231, China; Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China.

|July 17, 2024

概括

一种新型的污泥衍生生物炭 (BMNSBC) 有效地从水中去除硫甲醇 (SMX). 这种磁性,N-doped材料具有高容量,易于再生,安全,低漏,非常适合去除污染物和回收污泥.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
吸附科学吸附科学

背景情况:

新出现的污染物如硫甲醇 (SMX) 对人类健康和生态系统构成风险.
需要高效和可重复使用的吸附剂来从水中去除微量SMX.
污泥衍生生物炭为吸附剂开发提供了一个可持续的平台.

研究的目的:

设计一种高效,易于收集和再生的吸收剂,用于去除微量硫甲醇 (SMX).
为了研究SMX的修饰污泥衍生生物炭 (SBC) 的吸附性能.
探索开发的吸附剂的潜在机制和实际应用.

主要方法:

改性污泥衍生生物炭 (SBC) 的合成,包括N-doping,磁化和球磨 (BMNSBC).
吸附实验,以评估SMX去除效率和能力.
描述技术,吸附建模,DFT计算和反干扰测试.
再生研究和材料安全性评估 (泄漏试验).

主要成果:

同功能化的BMNSBC表现出优越的SMX吸附能力 (1.02 × 10^5 μg/g),比SBC高12.9倍.
吸附机制包括π-π结合,易斯酸相互作用,孔隙填充和Fe3O4复合.
BMNSBC在真实水样中表现出良好的抗干扰背景物质和高性能.
吸附剂显示出强烈的磁化,使其易于收集和高效地与NaOH再生,低Fe和TN漏.

结论:

BMNSBC是一种高效且可重复使用的吸附剂,用于微量SMX去除.
该材料的独特特性使其能够有效地净化污染物,并提供一个可行的污泥利用策略.
BMNSBC显示出在各种水基质中处理新出现的污染物的巨大潜力.

关键词:

DFT计算方法的计算方法环境安全环境安全具有较高的抗干扰能力.多次修改的多个修改.再生再生再生的过程

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