基改性奇托桑纳米纤维珠,用于可持续的去除和环境应用
Ho Hong Quyen1, Hoang M Nguyen1, Vu Chi Mai Tran1
1The University ofDa Nang - University of Science and Technology 54 Nguyen Luong Bang Street, Lien Chieu District Da Nang City 550000 Vietnam hhquyen@dut.udn.vn nmhoang@dut.udn.vn.
RSC advances
|March 5, 2025
概括
本研究介绍了基于酸盐的环保珠子 (CGCNF),用于有效地从废水中去除. 这些新型珠子具有卓越的吸附能力,更快的动力学和出色的再生能力,为环境保护提供了可持续的解决方案.
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:
- 从废水中去除对于环境健康和可持续城市化至关重要.
- 现有的吸附技术面临着低容量,缓慢的动力学和高再生成本的困难.
- 吸附剂和度限制了当前去除方法的效率.
研究的目的:
- 开发一种环保且高效的吸附剂,用于从废水中去除.
- 为了增强吸附能力和动力学,使用修饰的奇多纳米纤维.
- 评估新型吸附剂在真实废水中的再生效率和适用性.
主要方法:
- 用d-(+) - 葡萄糖-1,5-乳 (GL) 修改了基托桑纳米纤维,以创建CGCNF珠.
- 使用包括H NMR,Cosy NMR,SEM,BET,TGA,FTIR和体定位在内的技术进行吸附剂表征.
- 进行吸附实验以确定容量,动力学和再生性能,与商业树脂和奇托片进行比较.
主要成果:
- 与奇托片相比,CGCNF珠子的基功能群密度较高.
- 的最大吸附能力达到6.05毫克-1克,超过商业Amberlite IRA-743树脂.
- 在120分钟内达到吸附平衡,明显快于奇托片 (720分钟).
- 通过增加pH值和各种盐的存在 (NaCl,KCl,CaCl,MgCl) 增强了吸附能力.
- 在20个再生周期后,CGCNF珠保持了65.1%的容量.
- 从烟气脱硫废水中同时去除B (iii) (94.5%) 和 (iii) (100%) 已被证明.
结论:
- 修改后的奇托纳米纤维 (CGCNF珠) 为去除提供了优越和可持续的解决方案.
- 开发的吸附剂表现出高效率,快速动力学和出色的可重复使用性.
- CGCNF珠子显示出处理复杂工业废水的潜力,包括烟气脱硫废水.
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