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Low temperature synthesis of copper oxide nanoflowers for lead removal using sonochemical route

Title
Low temperature synthesis of copper oxide nanoflowers for lead removal using sonochemical route
Author
김기현
Keywords
Copper oxide; Nanoparticles; Electron microscopy; Lead; Adsorption; Spectroscopy
Issue Date
2017-10
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MOLECULAR LIQUIDS, v. 244, page. 506-511
Abstract
In this research, copper oxide (CuO) nanoflowers were obtained using a low-temperature synthesis technique with a high yield rate, and were tested as an adsorbent for the removal of lead ions (Pb2+) in aqueous systems. These CuO nanoflowers were initially characterized according to their topological, morphological, chemical, elemental, and structural parameters. Their morphology and size were investigated by field emission scanning electron microscopy (FESEM). It was found that the synthesized CuO nanoflowers ranged in size range from 20 to 90 nm with consistent features in a monoclinic phase, as elucidated by X-ray powder diffraction (XRD) analysis. Fourier transform infrared (FTIR) and energy-dispersive X-ray spectroscopy (EDS) analyses confirmed their composition to be pure CuO with minimal impurities. When these nanoflowers were utilized as an adsorbent for the removal of Pb2+, they yielded a maximum adsorption capacity of 188.7 mg/g at an adsorbent dose of 0.5 mg/mL with R-2 = similar to 0.98. The adsorption capacity of our CuO nanoflowers was considerably higher than that of adsorbents,explored by other researchers. Therefore, these CuO nanoflowers are proposed as an efficient sorbent material for waste water treatment. (C) 2017 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0167732217333299?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/115926
ISSN
0167-7322; 1873-3166
DOI
10.1016/j.molliq.2017.09.034
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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