使用混合超声波蛋生物碳纳米材料从水溶液中增强了阴离子和阴离子染料的净化:统计优化模型,技术经济和可持续的方法
Norbert Onen Rubangakene1, Kingsley Safo2, Hassan Shokry3
1Environmental Engineering Department, University of Science and Technology (E-JUST, New Borg El-Arab City 21934, Alexandria, Egypt. norbert.rubangakene@ejust.edu.eg.
Environmental science and pollution research international
|April 28, 2025
概括
一种新的绿色混合超声波蛋生物炭吸收剂有效地从废水中去除甲基蓝和甲基色染料. 优化条件实现了超过99.9%的清除,表明其对环境修复的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 绿色化学 绿色化学
背景情况:
- 污染废水有机染料造成的污染对环境和健康构成重大风险.
- 传统的染料去除方法往往缺乏效率或产生二次污染物.
- 开发可持续且具有成本效益的吸附剂对于有效的废水处理至关重要.
研究的目的:
- 合成和表征一种绿色混合超声波蛋生物炭吸收剂 (HUEBA).
- 为了研究HUEBA的吸附性能,以化甲基蓝 (MB) 和阳离子甲基色 (MO).
- 使用响应表面方法 (RSM) 优化吸附条件并阐明吸附机制.
主要方法:
- 使用超声波和蛋生物炭合成HUEBA.
- 使用SEM,TEM,BET,FTIR,XRD和零充电点来描述HUEBA.
- 批量吸附实验不同吸附剂剂量,pH值,度,温度和时间.
- 使用响应表面方法 (RSM) 的优化.
- 对吸附动力学,异热,热力学和机制的分析.
主要成果:
- 在2小时内,HUEBA展示了MB (85.49%) 和MO (53.45%) 的高清除效率.
- 在优化条件下 (236 mg/100 mL吸附剂,233 分钟) 实现了>99.9%的MB去除.
- 兰迈尔异热模型最好地描述了吸附过程,单层容量为99.80 mg/g (MB) 和73.53 mg/g (MO).
- 吸附遵循伪二阶动力学和埃洛维奇模型,表明化学吸附.
- 热力学研究证实了自发和外热吸附.
结论:
- 惠巴是一种高效和可持续的吸附剂,用于从废水中去除阴离子和阴离子染料.
- 吸附机制涉及静电相互作用,π-π电子堆叠和桥.
- 这项研究为先进的废水处理应用提供了一个有前途的绿色材料.
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