通过城市绿色废物生物炭吸附诺夫洛克萨:特征,动力学和机制
Yu Zhou1, Ziyan Wang2, Wenyong Hu2
1School of Biological Recourse and Environmental Science, Jishou University, Jishou, 416000, People's Republic of China. zy1990413@163.com.
概括
这项研究表明,以素为基础的生物炭有效地从水中去除抗生素norfloxacin. 城市绿色废物被转化为强大的吸附剂,为废水处理和废物管理提供可持续的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 废物管理 废物管理
背景情况:
- 生物炭是一种有前途的吸附剂,用于从污水中去除污染物.
- 城市绿色废物为可持续材料生产提供了一个未充分利用的资源.
- 诺夫洛克萨 (NOR) 是废水中常见的制药污染物.
研究的目的:
- 为了制备和描述Cinnamomum camphora叶片的基于素的生物炭 (CB-800).
- 评估CB-800在从水溶液中去除诺夫洛克萨的效率.
- 阐明诺夫洛克萨对CB-800的吸附机制和动力学.
主要方法:
- 高温热解用于从城市绿色废物中合成生物炭.
- 进行了批量吸附实验,以确定NOR去除能力和最佳条件.
- 使用SEM,BET,FTIR和XPS进行了表面表征,以了解吸附机制.
主要成果:
- CB-800对NOR具有很高的吸附能力,在298K时达到50.90mg/g.
- 吸附遵循伪二次动力学和杜比宁-拉杜什基维奇等温,表明复杂的吸附过程.
- 吸附的主要机制包括离子交换,π电子协调,键和静电相互作用.
结论:
- 从城市绿色废物中提取的基于素的生物炭是一种有效的吸附剂,用于清除诺夫洛克萨.
- 在CB-800的层次的中孔结构和表面功能组促进NOR吸附.
- 这项研究为废水处理和城市绿色废物的利用提供了可持续的方法.
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