从消耗的咖啡粉和铁/氧化物中制成的纳米复合材料:绿色合成,表征和在织废水处理中的应用
J A Reyes-Pérez1, G Roa-Morales2, C A De León-Condes3
1Tecnológico Nacional de México/ TES de Tianguistenco, Km. 22, Carretera Tenango - La Marquesa Santiago Tilapa, Santiago Tianguistenco 52650, México
概括
这项研究引入了一种新的FeO/ZnO纳米颗粒复合物,该复合物来自消耗的咖啡粉和植物提取物. 这种环保的催化剂有效地降解了废水中的织染料,显示出高度的脱色和减少化学氧气需求.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术纳米技术
背景情况:
- 污水处理仍然是一个重大的环境挑战,特别是关于去除织品固性染料.
- 开发可持续和高效的催化材料对于先进的氧化过程至关重要.
研究的目的:
- 通过消耗的咖啡粉 (SCG) 支持新型双金属FeO/ZnO纳米颗粒复合物的合成和表征.
- 评估合成纳米复合材料在废水中的织染料的芬顿式降解中的催化效率.
主要方法:
- 绿色合成FeO/ZnO纳米颗粒使用树和喇叶提取物作为生物减肥剂.
- 使用FTIR,SEM,EDS,XRD和TEM进行纳米复合材料的表征.
- 使用Box-Behnken实验设计在类似芬顿的过程中优化染料降解.
主要成果:
- 在SCG上成功合成稳定的FeO/ZnO纳米颗粒 (5-30nm) .
- 实现了88%的色色素染料的脱色比率.
- 在最佳条件下,在120分钟内减少了56%的化学氧需求 (COD).
结论:
- 开发的FeO/ZnO/SCG纳米复合材料是织物染料降解的有希望的,可持续的催化剂.
- 绿色合成方法为纳米粒子生产提供了一个环保的途径.
- 优化的芬顿式工艺证明了处理染料污染废水的高效率.
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