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可持续的生物基吸附剂,用于同时有效地从水溶液中去除危险染料

Dhwani Vara¹, Stuti Jha¹, Shweta Bisht²

¹Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Knowledge Corridor, Raisan, Gandhinagar 382426, Gujarat, India.

|April 26, 2024

概括

这项研究探索使用低成本的生物废物,如果树皮,从废水中去除有毒的阴阳性染料. 果树皮在去除染料混合物方面表现出高效率,为水污染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
绿色化学绿色化学

背景情况:

工业染料由于其毒性和致癌性,造成了严重的环境和健康风险.
估计有6万排放的染料污染了废水,这是全球面临的一个重大挑战.

研究的目的:

通过使用从生物废物中提取的成本效益高的吸附剂来研究阴离子染料的吸附.
评估花生,莫桑比皮,果树皮和果树叶在去染色方面的有效性.

主要方法:

使用FTIR,UV-Vis光谱,SEM,PZC和BET进行生物废物吸附剂的表征.
对单个和混合的阴阳性染料 (水晶紫色,甲蓝色,罗达胺B,马六合绿色) 的吸附性研究.
进行了动力学,异热,pH和吸附剂剂量研究.

主要成果:

果皮 (MBARK) 显示出极好的吸附效率,在60分钟内去除了94.44%的染料混合物 (Qe = 2.7 mg/g).
吸附跟随着伪二阶动力学 (R2=0.999631),表明化学吸收.
兰迈尔等温模型 (R2 = 0.99416) 最好地描述了单层吸附过程.

结论:

低成本的生物废物材料,特别是果皮,是有效的吸附剂,可以从废水中去除有毒的阴阳性染料.
吸附机制涉及离子交换,静电相互作用,键和pi-pi相互作用.
这项研究强调了一种可持续和经济的方法来缓解工业染料污染.

关键词:

吸附吸附是一种吸附.生物基吸附剂是一种生物基吸附剂.阴阳性染料是一种染料.废水整治废水整治废水整治废水整治

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