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通过使用Fe/Zn双金属氧化物修饰的石墨生物炭去除伊米达克洛普里德

Song Cui¹, Jialin Lv¹, Rupert Hough²

¹International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Research Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China.

Environmental research

|June 24, 2024

概括

从西瓜种子中获得的新型Fe/Zn修饰生物炭有效地从水中去除伊米达克洛普里德 (IMI). 这种先进的吸附剂显示出高稳定性和可再生性,为环境修复提供了可扩展的解决方案.

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:

伊米达克洛普里德 (IMI) 污染在水净化中构成了重大挑战.
现有的IMI删除方法往往缺乏效率和可扩展性.
开发先进的吸附剂对于有效的环境修复至关重要.

研究的目的:

开发和描述一种新的生物炭吸收剂,用于去除伊米达克洛普里德.
研究开发的吸附剂的吸附效率,机制和稳定性.
评估水处理吸附剂的再生能力和实际适用性.

主要方法:

合成改造的石墨白瓜种子的生物炭 (Fe/Zn@WBC).
吸附实验包括动力学,异热学,热力学和pH研究.
使用各种分析技术对吸附剂进行表征.
评估不同水条件下的稳定性和通过热解再生.

主要成果:

Fe/Zn@WBC在30分钟内实现了87.69%的IMI移除率.
吸附机制包括化学吸附,孔隙填充,结,疏水相互作用,静电,π-π相互作用和复杂化.
吸附剂在广泛的pH范围 (3-11) 中以及在与酸并存的离子和酸的存在下表现出极好的稳定性.
在三个再生周期中保持了92.02%的平均去除效率.

结论:

Fe/Zn@WBC 是一种高效且稳定的生物炭吸附剂,用于去除伊米达克洛普里德.
吸附剂的磁性特性使其易于分离和再生.
这项研究为环境修复中的IMI污染提供了可扩展和成本有效的解决方案.

关键词:

吸附方式吸附方式吸附方式双金属氧化物双金属氧化物生物炭是一种生物炭.伊米达克洛普里德 (Imidacloprid) 是一种 π-π 相互作用

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