从合成染料溶液中改性石墨的吸附性能
Yi Xin1, Youyu Bai1, Xiaowen Wu1
1Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
Materials (Basel, Switzerland)
|September 14, 2024
概括
改性石墨有效地从工业废水中去除超过85%的甲蓝染料. 高温处理增强了石墨的质量.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
背景情况:
- 工业染色废水对生态系统和人类健康构成重大风险.
- 有效的治疗方法对于减轻这些有害影响至关重要.
研究的目的:
- 调查改性石墨作为用于处理工业染色废水的吸附剂的有效性.
- 通过化学修饰和热处理优化石墨的吸附性能.
主要方法:
- 石墨被氧化并使用酸-酸- permanganate 系统进行化和化.
- 在高温下进行热处理,以修改石墨的孔隙性和结构.
- 使用甲蓝 (MB) 染料进行了吸附实验,应用了动力学和异热模型.
主要成果:
- 优化的石墨吸附剂实现了超过85%的甲蓝染料去除率.
- 确定了最佳吸附条件:吸附剂1.6毫克,60°C,性条件为10 ppm MB.
- 吸附遵循兰格穆尔模型,表明有利的单层均质吸附.
结论:
- 高温处理显著提高了煤基石墨的吸附性能.
- 改性石墨显示出强大的潜力,作为染色废水处理的有效吸附剂.
- 该研究支持在环境修复中应用先进的石墨材料.
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