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Copper oxide nanoblades as novel adsorbent material for cadmium removal

Title
Copper oxide nanoblades as novel adsorbent material for cadmium removal
Author
김기현
Keywords
Copper oxide; Cadmium; Adsorbent; Nanoparticles; Toxicity
Issue Date
2017-06
Publisher
ELSEVIER SCI LTD
Citation
CERAMICS INTERNATIONAL, v. 43, no. 8, page. 6075-6081
Abstract
A wide variety of new materials and their hybrids have emerged as novel adsorbents to help resolve contamination of heavy metals in water resources. In this research, copper oxide (CuO) nanoblades were synthesized in high yield using a facile chemical method. These synthesized CuO nanoblades were characterized for their topological, morphological, structural, optical, and chemical behavior using a variety of techniques including scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infra red (FTIR) spectrometry, Raman spectroscopy, and UV-Visible spectroscopy. The in-depth investigation confirmed that the blade-shaped synthesized nanomaterial was in pure CuO form. The synthesized nanoblades were 3-4 nm thick and 70-200 nm in length with consistent dots of 3 nm at one side on every blade. The performance of these nanoblades was further evaluated and optimized for cadmium (Cd) removal in relation to the parameters solution pH, contact time, and adsorbent/adsorbate dose. Their cytotoxicity was also assessed for probable utilization at the industrial/commercial level. CuO nanoblades showed a maximum adsorption capacity of 192.30 mg/g for Cd (adsorbent dose: 0.5 mg/ml) and exhibited a best fit for Langmuir isotherm with R-2 value of 0.99 and b = 0.007. This is the first report for chemical synthesis of copper oxide nanoblades followed by their utilization for removal of cadmium ions with such high adsorption capacity.
URI
https://www.sciencedirect.com/science/article/pii/S0272884217301724?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/114657
ISSN
0272-8842; 1873-3956
DOI
10.1016/j.ceramint.2017.01.152
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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