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量身定制的氨基功能化木质素/纤维素珠子用于六价的修复

Ji Won Heo¹, Do Hun Oh¹, Seong Ho Song¹

¹Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea.

International journal of biological macromolecules

|April 11, 2025

概括

来自生物质的聚乙烯胺功能化素/纤维素珠 (PLCBs) 有效地从水中去除有毒六价 (Cr(VI)). 这些环保的生物吸收剂为工业废水处理提供了高容量,可回收性和催化排毒.

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:

越来越多的环境挑战需要对工业污染的可持续解决方案.
来自生物质的材料为污染物清除提供了环保的替代方案.
六价 (Cr(VI)) 是一种有毒的污染物,需要有效的整治策略.

研究的目的:

从生物质中开发高性能生物吸收剂,用于六价去除.
用聚乙烯胺 (PEI) 来功能化素/纤维素珠,以提高吸附性.
研究开发的生物吸收剂的吸附机制,稳定性和可回收性.

主要方法:

通过离子交叉连接和PEI功能化制备聚乙烯胺功能化的木质素/纤维素珠 (PLCBs).
对PLCB的稳定性,机械性能和表面电荷进行表征.
批量和连续列实验以评估Cr (VI) 吸附能力和效率.
吸附机制的分析,包括静电吸引,还原和化.

主要成果:

PLCB表现出优异的水下稳定性,机械强度和pH响应的表面电荷.
最大的Cr(VI) 吸附能力达到了大约326.80 mg·g−1.1.
吸附包括静电吸引,化学还原和化,用催化转化Cr6到Cr3的过程.
PLCB 显示出优异的可回收性,并在多个循环中保持高吸附效率.

结论:

PLCB是有效的,可扩展和可回收的生物吸收剂,用于从水溶液中去除六价.
功能化珠子为工业废水处理提供了一种可持续的方法.
该材料用于Cr (VI) 排毒的催化功能为环境应用提供了显著的附加值.

关键词:

纤维素是纤维素的一种.(Chromium) 是一种含的物质.在Lignin的基础上.聚乙烯胺氨酸的使用方法减少减少减少这里是船只基地.

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