装有含的功能组的水电,用于多功能地去除阴离子和阴离子染料和水性重金属
Yue Zhang1, Yongshan Wan2, Yulin Zheng1
1Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA.
Water
|June 23, 2025
概括
改性炭有效地从废水中去除重金属和有机染料. 这种N-doped材料显示显著增强的吸附能力和更快的平衡时间,为净化水提供了新的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学 化学 化学
背景情况:
- 工业废水通常含有有毒重金属和有机染料.
- 有效地去除这些污染物对于环境保护和水资源管理至关重要.
- 需要新的吸附材料来有效和多功能地吸附污染物.
研究的目的:
- 开发和表征一种改性化物,用于增强重金属和有机染料的吸附.
- 为了研究原始和改性水电的吸附性能.
- 了解增强吸附背后的机制.
主要方法:
- 小麦的水热碳化,以产生水电.
- 使用3-Aminopropyl triethoxysilane (APTES) 修改水合物.
- 对酸盐的特性 (表面积,功能组) 的表征和对Pb (II),Cu (II),甲蓝和活性红的吸附能力的测试.
主要成果:
- 与原始酸盐 (HyC,1.14 m2/g) 相比,APTES修饰的酸盐 (APTES-HyC) 显示出增加的N功能组和更高的特定表面积 (4.51 m2/g).
- APTES-HyC表现出更快的吸附动力学,在大约4小时内达到平衡.
- 对于APTES-HyC的Pb(II) (49.6 mg/g),Cu(II) (14.8 mg/g),MB (31.7 mg/g) 和红色 (18.3 mg/g) 的Langmuir吸附能力显著增强.
结论:
- 通过APTES的修改,可以轻松地从碳中合成N-化碳材料.
- 增强的吸附性归因于增加的N-功能组,促进与污染物的特定相互作用.
- 这种N-化炭为废水处理中的实际应用提供了一个有前途的材料.
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