Study on the performance of laterite in removing graphene oxide contaminants from aqueous solution
Study on the performance of laterite in removing graphene oxide contaminants from aqueous solution
复制标题
红土去除水溶液中氧化石墨烯污染物的性能研究
DOI：
10.1177/17475198211060481
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发表时间：
2022-01
影响因子：
1.4
通讯作者：
Wei Wang
中科院分区：
文献类型：
--
作者：
Beifeng Lv;Kaitong Xu;Chulei Fang;Qiangqian Yang;Na Li;Ping Jiang;Wei Wang
为去除水中氧化石墨烯污染物，以红土为吸附剂，对氧化石墨烯水溶液进行了批量吸附实验。主要研究了pH、吸附剂质量、氧化石墨烯初始浓度、接触时间和温度对红土吸附氧化石墨烯的影响。结果表明：红土对氧化石墨烯的吸附对pH值有强烈的依赖性，动力学数据符合二级动力学模型，等温线数据符合Langmuir和Freundlich模型。温度的升高更有利于吸附能力的提高。结合扫描电镜、透射电镜、原子力显微镜、傅里叶变换红外光谱、x射线衍射、x射线光电子能谱、拉曼显微等测试，进一步揭示了吸附前后样品的内部变化。综合分析上述实验结果表明，红土是一种良好的材料，可以有效去除水溶液中的氧化石墨烯污染。
To remove graphene oxide contaminant from aqueous solution, laterite was used as an adsorbent to conduct batch adsorption experiments on graphene oxide aqueous solutions. The effects of pH, adsorbent mass, graphene oxide initial concentration, contact time, and temperature on graphene oxide adsorption by laterite were studied predominantly. The results show that graphene oxide adsorption by laterite strongly depends on pH, the kinetic data conforms to the second-order kinetic model, and the isotherm data are in line with Langmuir and Freundlich models. Moreover, temperature increment is more conducive to improving the adsorption capacity. Combined with scanning electron microscopy, transmission electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Raman microscopic tests, the internal changes of samples before and after adsorption were further revealed. The comprehensive analysis of the above experimental results shows that laterite is a good material, which can effectively remove graphene oxide contamination from aqueous solutions.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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DOI：
10.9734/ajacr/2019/v4i230109
发表时间：
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期刊：
--
影响因子：
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作者：
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通讯作者：
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影响因子：
17.1
作者：
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通讯作者：
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