Journal
MATERIALS LETTERS
Volume 238, Issue -, Pages 134-137Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2018.11.164
Keywords
Graphene oxide; Aerogel; Adsorption; Dye
Funding
- Vietnam National University, Ho Chi Minh City (VNU-HCM) [NV2018-20-04]
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In this work, graphene oxide aerogel (GOA) was synthesized by ice segregation induced self-assembly method. The characterization of GOA was studied by Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, transmission electron microscopy, scanning electron microscope, and Brunauer-Emmett-Teller specific surface area. Effects of contact time, pH, and initial concentration on the adsorption capacity of GOA were studied. The adsorption process fitted well with pseudo-second-order kinetic and Langmuir isotherm models with the maximum adsorption capacities for methylene blue and methyl orange of 480.76 and 55.56 mg/g, respectively. (C) 2018 Elsevier B.V. All rights reserved.
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