通过球磨Fe3O4-改性生物炭从农业废物中提取的高效酸盐吸附
Xiaoqing Meng1, Yu Shen2, Lin Wang1
1(Jiangsu Open University, Nanjing 210036, China.
ACS omega
|March 2, 2026
概括
改性生物炭有效地消除了水中的污染. 这种用氧化铁增强的环保吸附剂具有较高的容量和可重复使用性,可用于更清洁的水生环境.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 农业产生的污染会导致水生生态系统的环氧化.
- 开发可持续吸附剂对于管理农村水污染至关重要.
- 生物炭是有前途的,但需要进行修改以获得高效的酸盐吸附.
研究的目的:
- 创建和评估用于酸盐去除的增强生物炭吸收剂.
- 为了研究修改生物炭的吸附性能,以控制污染.
主要方法:
- 小麦生物炭在800°C下被烧化,并通过球磨加工用纳米-Fe3O4进行修饰.
- 描述包括BET分析和SEM.
- 吸附实验评估了动力学,异热,pH效应,离子干扰和再生.
主要成果:
- 改性生物炭的表面积是未改性生物炭的420倍 (181.71 m2·g-1).
- 最大吸附能力达到了125.38mg·g-1,遵循伪二次动力学和兰格穆尔等热法.
- 在5个再生周期中保持了高清除效率 (>89%).
结论:
- 球磨铁氧化物修饰显著增强生物炭对酸盐吸附.
- 磁性生物炭是高效的,快速的,pH值敏感的,并且可以重复使用.
- 这种材料为非点源污染提供了可持续的解决方案.
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