通过Fe-Mn氧化物加载生物炭从复杂的环境中有效地去除双A:利用同时存在的Cr (VI) 的创新视角
Naiju Che1, Yinhui Li1, Minggu Zhang1
1National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, Tai'an, 271018, China; College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, China.
Journal of environmental management
|January 30, 2026
概括
这项研究表明,修改后的生物炭可以通过利用去除双A (BPA). 这为使用农业废物进行复杂的污染控制提供了一种新方法.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 同时存在的重金属可以增强生物炭的有机污染物去除能力,但底层机制和生物炭的特性尚未完全理解.
- 这限制了重金属在使用生物炭的复杂污染控制中的有效应用.
研究的目的:
- 研究重金属和生物炭对有机污染物去除的协同效应.
- 开发一种高效的基于生物炭的材料,以在Cr的存在下去除双A (BPA).
主要方法:
- 从各种原料在不同温度下制备生物炭,用铁氧化物修饰.
- 在单一和二进制系统 (Cr(VI) + BPA) 中评估BPA去除性能.
- 生物炭性质的表征,火实验和反应性氧物种 (ROS) 测量以阐明去除机制.
主要成果:
- 铁氧化物加载生物炭 (Fe-Mn/SC5) 在单一系统中实现了86.25%的BPA去除,在带有CrVI的二进制系统中达到100%.
- 通过形成"BC-缺陷-HCrO4-"并参与氧化还原反应,增强了BPA的去除,同时还原为CrIII).
- 移除机制涉及吸附 (π-π,疏水性,键,复杂化) 和降解 (激进和非激进通路).
结论:
- 改性生物炭有效地去除BPA,而Cr (VI) 则起着至关重要的协同作用.
- 这项研究为复杂的污染整治提供了农业废物中的新材料.
- 通过利用生物炭特性和污染物相互作用,提供对二元污染控制的见解.
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