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Albert Mandjewil¹, Patrick Tsopbou Ngueagni¹, Jean Mermoz Siewe¹

¹Department of Inorganic Chemistry, Faculty of Science, University of Yaounde I, 812, Yaounde, Cameroon.

Environmental science and pollution research international

|August 3, 2023

概括

改性可可有效地从水中去除红色卡明 (IC) 和绿色绿色 (BCG) 染料. 这种可持续吸附剂显示出高容量和可重复使用性,为染料废水处理提供了一个有前途的解决方案.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
水处理处理水的方法

背景情况:

工业废水通常含有恒久性有机染料,如红色卡明 (IC) 和青绿色 (BCG).
传统的处理方法可能是低效或昂贵的,需要开发新的吸附材料.
可可是一种废物,为开发可持续吸附剂提供了机会.

研究的目的:

用氧化 (NaOH) 和 cetyltrimethylammonium bromide (CTAB) 来修改可可,以创建一个有效的吸附剂 (CC-OH-CTAB).
评估CC-OH-CTAB的吸附性能,以从水溶液中去除IC和BCG染料.
为了研究改性可可吸收剂的吸附机制,动力学和可重复使用性.

主要方法:

可可被NaOH和CTAB处理以增强其表面特性.
进行了批量吸附实验,以确定最佳的pH值,接触时间和吸附能力.
使用等温和和伪第一/二阶动力模型分析了吸附数据.
进行了再生和可重复使用测试,以评估吸附剂的稳定性.

主要成果:

修改后的吸附剂CC-OH-CTAB的最大吸附能力为IC的85.1毫克g-1和BCG的192.7毫克g-1.
最佳吸附发生在IC的pH2和BCG的pH4时,平衡达到30分钟 (IC) 和120分钟 (BCG).
等温模型和伪第一/二阶动力学最好地描述了IC和BCG的吸附过程.
在多个吸附-脱附周期中,CC-OH-CTAB表现出卓越的稳定性和可重复使用性.

结论:

用CTAB修改可可显著提高了它对IC和BCG染料的吸附性能.
CC-OH-CTAB是一种稳定,可重复使用和高效的吸附剂,用于从废水中去除常见的有机染料.
这项研究强调了利用农业废弃物的潜力,以开发具有成本效益和可持续的水处理解决方案.

关键词:

乙烯基三甲基氨酸化物染料是一种染料.运动学运动学兰姆维尔 (Langmuir) 是一个古老的城市.再生再生再生的过程重复使用重复使用.表面的修改是表面的修改.

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