TY - JOUR
T1 - Removal of phosphate from aqueous solution by functionalized mesoporous materials
AU - Choi, Jae Woo
AU - Lee, Seung Yeon
AU - Chung, Seung Gun
AU - Hong, Seok Won
AU - Kim, Dong Ju
AU - Lee, Sang Hyup
N1 - Funding Information:
Acknowledgment The authors acknowledge the grant for this study via project No. 071-091-137 from the Next-Generation Core Environmental Technology Development Project of the Korean Ministry of the Environment.
PY - 2011/11
Y1 - 2011/11
N2 - In the present study, the applications of mesoporous materials based on silica, namely post-synthesized, one-pot synthesized, and pure MCM-41, were investigated for the removal of phosphate from aqueous solution. The mesostructures were confirmed by X-ray diffraction, Brunauer-Emmett-Teller, Fourier transform spectroscopy, and transmission electron microscopy. The absorptions of phosphate by the mesoporous adsorbents were examined, with different adsorption models used to describe the equilibrium and kinetic data. The maximum adsorption capacities of the mesostructure adsorbents were found to be 45.162, 40.806, and 31.123 mg g-1 for the post-synthesized, one-pot synthesized, and pure MCM-41, respectively. The kinetic data showed that the adsorptions of phosphate onto the post-synthesized and pure MCM-41 followed the pseudo-first-order kinetic model, whereas the one-pot synthesized adsorbent was described by the pseudo-second-order model.
AB - In the present study, the applications of mesoporous materials based on silica, namely post-synthesized, one-pot synthesized, and pure MCM-41, were investigated for the removal of phosphate from aqueous solution. The mesostructures were confirmed by X-ray diffraction, Brunauer-Emmett-Teller, Fourier transform spectroscopy, and transmission electron microscopy. The absorptions of phosphate by the mesoporous adsorbents were examined, with different adsorption models used to describe the equilibrium and kinetic data. The maximum adsorption capacities of the mesostructure adsorbents were found to be 45.162, 40.806, and 31.123 mg g-1 for the post-synthesized, one-pot synthesized, and pure MCM-41, respectively. The kinetic data showed that the adsorptions of phosphate onto the post-synthesized and pure MCM-41 followed the pseudo-first-order kinetic model, whereas the one-pot synthesized adsorbent was described by the pseudo-second-order model.
KW - Amine-functionalized
KW - Mesostructure
KW - One-pot synthesis
KW - Phosphate
KW - Post-synthesis
UR - http://www.scopus.com/inward/record.url?scp=80755135367&partnerID=8YFLogxK
U2 - 10.1007/s11270-011-0820-y
DO - 10.1007/s11270-011-0820-y
M3 - Article
AN - SCOPUS:80755135367
SN - 0049-6979
VL - 222
SP - 243
EP - 254
JO - Water, Air, and Soil Pollution
JF - Water, Air, and Soil Pollution
IS - 1-4
ER -