TY - JOUR
T1 - Synthesis of phosphor-free luminescent, monodisperse, mesoporous silica nanoparticles in the co-presence of double- and single-chain cationic surfactants
AU - Ishii, Haruyuki
AU - Kawai, Shunsuke
AU - Nagao, Daisuke
AU - Konno, Mikio
N1 - Funding Information:
This research was mainly supported by the Ministry of Education, Culture, Sports, Science, and Technology (JSPS KAKENHI Grant No. 25600036 ).
Publisher Copyright:
© 2016 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
PY - 2016/3/1
Y1 - 2016/3/1
N2 - Phosphor-free luminescent, mesoporous silica nanoparticles (MSNs) were synthesized with a sol-gel method in the presence of cetyltrimethylammonium bromide (CTAB) and/or didodecyldimethylammonium bromide (DDAB). The surfactants were employed to play double roles as a template to form mesopores and as an organic compound to introduce luminescent centers in calcination step. The incorporation of DDAB produced MSN that was better in luminescent properties than the CTAB-incorporated nanoparticles. A low molar ratio of CTAB to DDAB in their coexistence system could produce highly monodisperse MSN that showed emission intensity higher than that of a conventional phosphor-free luminescent silica nanoparticle having no mesopores.
AB - Phosphor-free luminescent, mesoporous silica nanoparticles (MSNs) were synthesized with a sol-gel method in the presence of cetyltrimethylammonium bromide (CTAB) and/or didodecyldimethylammonium bromide (DDAB). The surfactants were employed to play double roles as a template to form mesopores and as an organic compound to introduce luminescent centers in calcination step. The incorporation of DDAB produced MSN that was better in luminescent properties than the CTAB-incorporated nanoparticles. A low molar ratio of CTAB to DDAB in their coexistence system could produce highly monodisperse MSN that showed emission intensity higher than that of a conventional phosphor-free luminescent silica nanoparticle having no mesopores.
KW - Double chain cationic surfactant
KW - Monodisperse mesoporous silica nanoparticle
KW - Phosphor-free luminescence
KW - UV irradiation
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U2 - 10.1016/j.apt.2016.01.010
DO - 10.1016/j.apt.2016.01.010
M3 - Article
AN - SCOPUS:85006110911
VL - 27
SP - 448
EP - 453
JO - Advanced Powder Technology
JF - Advanced Powder Technology
SN - 0921-8831
IS - 2
ER -