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中南大学学报(英文版)

Journal of Central South University

Vol. 27    No. 5    May 2020

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High efficient removal and mineralization of Cr(VI) from water by functionalized magnetic fungus nanocomposites
CHEN Run-hua(陈润华)1, CHENG Yu-ying(程钰莹)1, WANG Ping(王平)1, LIU Zhi-ming(刘志明)3, WANG Yu-guang(王玉光)4, WANG Yang-yang(王洋洋)2

1. College of Environmental Science and Engineering, Central South University of Forestry and Technology,Changsha 410007, China;
2. National Demonstration Center for Environmental and Planning, College of Environment & Planning,Henan University, Kaifeng 475004, China;
3. Department of Biology, Eastern New Mexico University, Portales, NM88130, USA;
4. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China

Abstract:A hydroxyl-functionalized magnetic fungus nanocomposite (MFH@GO) was prepared by a simple one-pot method for the removal of Cr(VI) from wastewater. The adsorption behavior of MFH@GO to Cr(VI) in wastewater was discussed in detail. At pH of 5.0 and temperature of 323.15 K, MFH@GO had higher adsorption capacity to Cr(VI) (58.4 mg/g) than the unmodified fungus and GO. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetry and differential thermal analysis (TG-DTA), scanning electron microscopy and energy dispersive X-Ray spectroscopy (SEM-EDX) were employed to determine the characteristics of MFH@GO. Results showed that magnetic graphene oxide nanoparticles significantly enhanced the physiochemical properties of the fungi. In addition, the adsorption mechanisms analyses show that Cr(VI) could be reduced and mineralized into ferric chromate in residues. These results suggested that MFH@GO could be used as an promising and alternative biosorbent for removal of Cr(VI) from industrial wastewater.

 

Key words: wastewater; Cr(VI); fungus nanocomposites; biomineralization

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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