Highly efficient removal of Cr(VI) from wastewater via adsorption with novel magnetic Fe3O4@C@MgAl-layered double-hydroxide |
| |
Authors: | Hui Zhang Fei Huang De-Lei Liu Peng Shi |
| |
Institution: | 1.College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China;2.Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China;3.Xinjiang Petroleum Survey and Design Institute, Urumqi 830026, China |
| |
Abstract: | Novel magnetic Fe3O4@C@MgAl-layered double-hydroxide (LDH) nanoparticles have been successfully prepared by the chemical self-assembly methods. The properties of surface functional groups, crystal structure, magnetism and surface morphology of magnetic nanoparticles were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermal gravity-differential thermal gravity (TG-DTG), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The adsorption studies of the novel adsorbent in removing heavy metals Cr (VI) from waste water showed that the maximum absorption amount of Cr(VI) was 152.0 mg/g at 40℃ and pH 6.0. The excellent adsorption capacity of the Fe3O4@C@MgAl-LDH nano-absorbents plus their easy separation, environmentally friendly composition and reusability makes them more suitable adsorbents for the removal of metal ions from waste water. |
| |
Keywords: | Magnetic nanoparticles MgAl-layered double-hydroxide Adsorption Chromium(VI) |
|
| 点击此处可从《中国化学快报》浏览原始摘要信息 |
| 点击此处可从《中国化学快报》下载免费的PDF全文 |
|