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从蛋中提取的酸,嵌入在功能化的g-C₃N₄上,用于从水溶液中协同提取U(VI)

A Dhanasekaran¹, N Priyadarshini², Ilaiyaraja Perumal¹

¹Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Chennai, 600127, Tamil Nadu, India.

|August 7, 2024

概括

在甲酸功能化石墨碳化物 (HAp@D-gCN) 上,蛋衍生的亚酸有效地从水中去除. 这种环保的纳米复合材料显示出高吸附能力和可回收性,用于环境修复.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
纳米技术纳米技术

背景情况:

石墨碳化物 (gCN) 是环境应用的一个有前途的材料.
蛋废物是一种丰富且未充分利用的生物废物资源.
开发有效的吸附剂来去除重金属对于环境保护至关重要.

研究的目的:

为了合成和表征一种新的纳米复合材料 (HAp@D-gCN) 用于 (VI) 的去除.
为了研究HAp@D-gCN对U(VI) 种类的吸附机制和容量.
评估合成材料的可重复使用性和潜在的环境修复应用.

主要方法:

从蛋废弃物中合成酸 (HAp) 并将其功能化为二甲酸改性石墨碳化物 (D-gCN).
使用SEM,XRD,BET,FTIR和泽塔电位测量的HAp@D-gCN的表征.
批量吸附研究以通过pH,接触时间,初始U(VI) 度,吸附剂剂剂量和离子强度等各种参数优化U(VI) 清除效率.

主要成果:

该HAp@D-gCN纳米复合物已成功合成和表征,证实了HAp和D-gCN组件的存在.
吸附动力学遵循伪二阶模型,在20分钟内达到平衡.
兰慕尔异热模型最好地描述了吸附数据,在298K时产生了993.6mg U(VI) /g的最大吸附能力.
使用0.01M Na2CO3,可以有效地脱氧化U(VI),在四个吸附-脱氧循环后,吸附剂保持其容量.

结论:

HAp@D-gCN是一种高效且可回收的吸附剂,用于从水溶液中去除.
在HAp合成中使用蛋生物废物符合循环经济原则.
这种纳米复合材料在污染水的环境修复中显示出实际应用的巨大潜力.

关键词:

吸附方式吸附方式吸附方式碳化物碳化物迪格利科拉姆酸 (diglycolamic acid) 是一种含有甲酸的化合物.氧亚帕提特是一种氧亚帕提特.在纳米复合材料.是一种.

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