TY - JOUR
T1 - Temperature effect on the sorption of borate by a layered double hydroxide prepared using dolomite as a magnesium source
AU - Qiu, Xinhong
AU - Sasaki, Keiko
AU - Hirajima, Tsuyoshi
AU - Ideta, Keiko
AU - Miyawaki, Jin
N1 - Funding Information:
Financial support was provided to KS by Funding Program for Next Generation of World-Leading Researchers (“NEXT program” GR078) in Japan Society for Promotion of Science (JSPS). This study was partially supported by the New Energy and Industrial Technology Development Organization (NEDO) under the Innovative Zero-emission Coal-fired Power Generation Project. FE-SEM images were collected at the center of advanced instrumental analysis, Kyushu University.
Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013/6/1
Y1 - 2013/6/1
N2 - A hydrotalcite-like compound prepared through chemical deposition using calcined dolomite as the magnesium source (D-LDH) was applied to remove borate. D-LDH calcined at different temperatures was characterized by specific surface area measurements, scanning electron microscope images, X-ray diffraction (XRD) patterns, and Fourier transform infrared (FTIR) spectra to optimize the calcination temperature and maximize the sorption capacity of borate. Greater sorption density of borate was observed at higher calcination temperature, and the sample calcined at 700°C showed the maximum sorption density. In addition, the sorption density of borate by D-LDH calcined at 700°C decreased with increasing initial pH. The solid residues after the sorption of borate were characterized by FTIR, 11B NMR (11Boron nuclear magnetic resonance), and XRD to explore the sorption mechanism of the calcined product at 700°C.
AB - A hydrotalcite-like compound prepared through chemical deposition using calcined dolomite as the magnesium source (D-LDH) was applied to remove borate. D-LDH calcined at different temperatures was characterized by specific surface area measurements, scanning electron microscope images, X-ray diffraction (XRD) patterns, and Fourier transform infrared (FTIR) spectra to optimize the calcination temperature and maximize the sorption capacity of borate. Greater sorption density of borate was observed at higher calcination temperature, and the sample calcined at 700°C showed the maximum sorption density. In addition, the sorption density of borate by D-LDH calcined at 700°C decreased with increasing initial pH. The solid residues after the sorption of borate were characterized by FTIR, 11B NMR (11Boron nuclear magnetic resonance), and XRD to explore the sorption mechanism of the calcined product at 700°C.
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U2 - 10.1016/j.cej.2013.03.099
DO - 10.1016/j.cej.2013.03.099
M3 - Article
AN - SCOPUS:84877330339
VL - 225
SP - 664
EP - 672
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
ER -