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Potential of the magnetic hollow sphere nanocomposite (graphene oxide-gadolinium oxide) for arsenic removal from real field water and antimicrobial applications
- Source :
- Journal of hazardous materials. 402
- Publication Year :
- 2020
-
Abstract
- Potential of the magnetic hollow-sphere nanocomposite, graphene oxide-gadolinium oxide (GO-Gd2O3) for arsenic (As) removal from real field water with developing a continuous operating system and antimicrobial activity were investigated. The characterization results suggest that the prepared GO-Gd2O3 is a hallow sphere wool-like nanocomposite having 50.91 m2 g-1 surface area. The sorption studies revealed that a high adsorption capacity (216.70 mg g-1) can be achieved using GO-Gd2O3 (0.1 g L-1) at a pH of 6.0, and temperature of 293 K. The main and novel observations from the loading of Gd2O3 are that the GO adsorption efficiency, adsorbent separation rate from aqueous solutions, and the stability of the composite have been altered. Thus, the developed material can overcome the separation and stability issues associated with the bare GO, and exhibits an enhanced adsorption capacity toward arsenic was higher or comparable with existing magnetic material. In addition, the developed adsorption method was well applied for real field water samples collected from the mining area of South Korea where the GO-Gd2O3 can reduce the quantity of arsenic under the maximum accepted concentration of arsenic considered fit for drinking water stipulated by environmental protection agencies. Furthermore, the GO-Gd2O3 nanocomposite shows a high bacterial photocatalytic inactivation and was comparable with other reports.
- Subjects :
- Environmental Engineering
Materials science
Health, Toxicology and Mutagenesis
0211 other engineering and technologies
Oxide
chemistry.chemical_element
Gadolinium
02 engineering and technology
010501 environmental sciences
01 natural sciences
law.invention
Arsenic
Nanocomposites
Water Purification
chemistry.chemical_compound
Adsorption
law
Republic of Korea
Environmental Chemistry
Waste Management and Disposal
0105 earth and related environmental sciences
021110 strategic, defence & security studies
Aqueous solution
Nanocomposite
Graphene
Magnetic Phenomena
Water
Sorption
Pollution
Kinetics
Chemical engineering
chemistry
Photocatalysis
Graphite
Water Pollutants, Chemical
Subjects
Details
- ISSN :
- 18733336
- Volume :
- 402
- Database :
- OpenAIRE
- Journal :
- Journal of hazardous materials
- Accession number :
- edsair.doi.dedup.....273414e2fb82be4c70ab3ddbddf7ea32