合成的碳氧甲基 - 基托变体复合材料用于循环吸附 - 脱落基去除Fe,Pb和Cu
Prabhat Kumar Patel1, Lalit Mohan Pandey2, Ramagopal V S Uppaluri3
1Centre for the Environment, Indian Institute of Technology Guwahati, North Guwahati, 781039, Assam, India.
Chemosphere
|August 12, 2023
概括
一种新的复合吸附剂有效地从工业废水中去除铜,铁和. 这种功能性材料表现出高吸附能力和良好的可重复使用性,用于消除多重金属离子.
科学领域:
- 环境化学环境化学
- 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:
- 由于重金属污染,工业废水对环境构成重大威胁,特别是铜 (Cu),铁 (Fe) 和 (Pb).
- 有效和选择性地去除这些有毒金属对于环境保护和水资源管理至关重要.
- 开发用于高效重金属修复的先进材料仍然是环境科学中的一个关键挑战.
研究的目的:
- 合成和表征一种功能性复合吸附剂,用于从废水中选择性去除Cu,Fe和Pb.
- 研究开发的吸附剂的吸附性能和机制.
- 评估吸附剂在复杂的工业废水处理中的可重复使用性和潜在应用.
主要方法:
- 一种复合性吸附剂是使用不同分子重量的奇托合成的,该化合物通过甲交叉连接与碳氧甲基组功能化.
- 合成的吸附剂使用包括XRD,FTIR,TGA,SEM-EDX和BET表面积分析在内的技术进行了表征.
- 进行了吸附实验,以确定吸附剂剂量,接触时间和pH的影响,并进行了同温和运动研究.
主要成果:
- 合成的中等碳素甲基基托衍生物的表面积为31.43 m2g-1.1.
- 在pH值3.82,540分钟接触时间和1.2gL-1 sorbent剂量下发现了最佳吸附条件.
- 的最大吸附能力为344.83毫克g−1,Pb为9.59毫克g−1和Fe为90.09毫克g−1,符合兰迈尔等温度和伪二次动力学.
结论:
- 开发的功能复合吸附剂显示出高效率和选择性,用于从废水中去除多种重金属.
- 吸附剂在使用常见的酸性和基本性化剂的三个吸附-脱附周期中表现出极好的可重复使用性.
- 这种材料在处理复杂的污染重金属的工业废水方面具有重要的实际应用潜力.
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