回收电污泥作为一种有效的光催化剂,用于在水溶液中降解普洛素
Hien Van Dao1, Trang Minh Hoang1, Mai Thi Nguyen1,2
1Faculty of Environmental Sciences, University of Science, Vietnam National University, Hanoi, Vietnam.
Journal of the Air & Waste Management Association (1995)
|January 2, 2025
概括
电污泥通过光催化剂在废水中有效降解. 这种可持续的方法将废物重新用于环境清洁的有价值催化剂.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 制药污染,特别是西普洛素 (CIP),构成了重大环境挑战.
- 传统的废水处理方法难以有效地去除持久性有机污染物.
- 电污泥 (ESs) 是一个大量的工业废物流,其潜力未得到充分利用.
研究的目的:
- 调查电污泥 (ESs) 作为新型光催化剂的有效性,用于降解西普洛素.
- 描述ESs并了解其与光催化活性相关的特性.
- 在各种条件下评估基于ESs的光催化物的性能,并确定降解机制.
主要方法:
- 使用XRD,SEM,TEM,EDX,FTIR和BET技术进行ES的表征.
- 在紫外线照射下,在水溶液中对西普罗夫洛克萨的光降解实验.
- 对降解效率的分析和通过激素清除试验识别反应性物种.
- 评估ES对其他有机污染物 (如染料和) 的性能.
主要成果:
- 主要包括金属氧化物 (Ni-O,Cu-O),能够吸收UV-Vis光.
- 在优化条件下 (10 mg L-1,pH 9,1.0 g/L催化剂) 在180分钟内达到93.87%的西普罗夫洛克萨辛降解.
- 在降解其他有机化合物方面具有广泛的适用性,并将洞 (h+) 和超氧化基 (O2•−) 确定为关键活性物种.
结论:
- 电污泥是一种可行的,可持续的光催化剂,用于从废水中去除西普洛素.
- 这种方法提供了一种具有成本效益和环保的废物回收和水资源整治方法.
- 这些发现支持通过将工业废物重新利用用于先进的环境应用来开发循环经济模型.
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