氧化石墨烯/氧化石墨烯纳米带/酸盐的极高效率的气凝,用于从废水溶液中去除
Ali A Jabbar1, Dhia H Hussain2, Kamal H Latif2,3
1College of Science/Chemistry Department, Mustansiriyah University, Baghdad, Iraq. alialwasti@uomustansiriyah.edu.iq.
Scientific reports
|January 13, 2024
概括
新型石墨烯氧化物纳米带/盐酸气凝有效地从废水中去除 (VI). 这种吸附剂具有高容量929.16mg/g,为环境修复提供自发和内热吸附过程.
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:
- 废水被等放射性元素污染对人类健康构成重大风险.
- 开发高效的吸附剂对于从水溶液中去除有毒重金属至关重要.
研究的目的:
- 为了合成和描述一种新的纳米复合材料气凝,用于 (VI) 的去除.
- 为了研究 (VI) 修复的气凝的吸附性能和机制.
主要方法:
- 石墨烯氧化物,石墨烯氧化物纳米带和酸纳米复合物气凝 (GO/GONRs/SA) 通过改进的汉默工艺和冷干燥进行合成.
- 批量吸附研究,以评估在各种条件下 (pH,温度,接触时间) 消除 (VI).
- 使用FT-IR,XRD,SEM和TEM进行表征;使用伪二阶和朗穆尔模型进行吸附动力学和异热模拟.
主要成果:
- GO/GONRs/SA气凝在吸附水溶液中的 (VI) 中表现出高效率.
- 最大吸附能力达到929.16毫克/克,按照兰迈尔异热模型.
- 吸附动力学最好用伪二阶模型来描述,这表明了一个内热和自发的过程.
结论:
- 开发的GO/GONRs/SA气凝是一种有希望的,高效的吸附剂,用于从废水中去除 (VI).
- 纳米复合材料气凝为放射性污染物的环境修复提供了一个可持续的解决方案.
- 这项研究为吸附机制和有效净化水的能力提供了宝贵的见解.
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