磁性飞灰地质聚合物用于在水溶液中去除重金属
Guyu Shi1,2, Baozhi Cui3, Say Kee Ong4
1R&D Department, Shanghai Lanke Environmental Technology Co., Ltd, Shanghai 201803, China.
概括
使用方法2合成的新型磁性地质聚合物显示出出色的磁性和吸附性质,用于去除重金属. 这些材料通过使用磁场有效地分离,为废水处理提供了一个有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程环境工程
- 纳米技术 纳米技术
背景情况:
- 地质聚合物是多功能无机聚合物,在吸附中具有潜在的应用.
- 纳入磁纳米粒子可以增强材料分离和回收过程.
- 开发磁吸附剂对于有效的废水处理和资源回收至关重要.
研究的目的:
- 通过两种不同的方法合成新的磁性地质聚合物.
- 评估合成的磁性地质聚合物的磁性,物理性和吸附性质.
- 评估开发材料的磁分离效率和铜吸附能力.
主要方法:
- 研究了合成磁性地质聚合物的两种方法:表面沉积 (方法1) 和合成期间的合并 (方法2).
- 描述了磁性,物理性和吸附性质.
- 在水溶液中测试了使用磁场的分离效率.
- 确定了铜的吸附能力.
主要成果:
- 第二种方法,采用预先合成的磁性Fe3O4颗粒,在磁性地质聚合物生产中被证明是优越的.
- 磁性地质聚合物表现出铁磁性质,和磁化值为8emu·g-1和强制性为265 Oe.
- 通过使用0.48-T磁场,在2分钟内从水溶液中实现了有效的分离.
- 记录的最大铜吸附能力为111.1mg·g−1,相当于非磁性地质聚合物.
结论:
- 通过方法2合成的磁性地质聚合物对磁分离和重金属吸附有效.
- 添加磁性Fe3O4纳米颗粒不会影响地质聚合物的吸附能力.
- 这些磁性地质聚合物在废水处理和工业金属分离中对重金属的去除和回收具有显著的前景.
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