在球形碳上生态友好的合成棒状酸:一种双功能的复合物,用于选择性去除和增强氧气演化反应
Ali Mohammadi1, Sujina Tamang2, Muruganantham Rethinasabapathy2
1Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea.
Journal of hazardous materials
|January 15, 2025
概括
这项研究开发了一种双功能酸 (HAp) -球形碳 (SC) 复合物,用于从废水中选择性去除. 吸附复合物还显示出作为氧化演化反应 (OER) 的电催化剂的前景.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 电化学 电化学 电化学
背景情况:
- 工业和放射性废水由于离子 (Co2+) 和放射性核化物,造成环境和健康风险.
- 开发用于污染物清除和能源应用的高效材料至关重要.
研究的目的:
- 合成一个双重功能酸 (HAp) -球形碳 (SC) 复合物 (HAp/SC).
- 评估HAp/SC从废水中选择性 (Co2+) 吸附.
- 研究Co2+-adsorbed HAp/SC作为氧化演化反应 (OER) 的电催化剂的潜力.
主要方法:
- 合成具有不同HAp重量百分比 (10-50%) 的HAp/SC复合材料.
- 批量吸附实验以确定Co2+吸附能力和动力学.
- 对于OER性能 Co2+-HAp/SC 的电化学表征.
主要成果:
- 20%重量的HAp/SC复合物显示出最高的Co2+吸附能力 (111.03毫克/克),超过了单个HAp和SC.
- 吸附遵循兰格穆尔模型,表明单层吸附和伪第一阶动力学.
- Co2+-HAp/SC复合物表现出有前途的OER电催化活性,其超电位为380mV,Tafel斜率为39.3mV dec-1.
结论:
- 这种HAp/SC复合材料具有双重功能,可以有效地从废水中去除.
- 吸附材料作为氧化演化反应 (OER) 的可行电催化剂.
- 这种复合材料为废水处理和能源转换提供了一种可持续的方法.
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