TY - GEN
T1 - Study of pore property of mesoporous films materials for trace explosive detection
AU - Ma, Li
AU - Wen, Yuquan
AU - Yan, Nan
AU - Li, Guangtao
PY - 2013
Y1 - 2013
N2 - Thus, here, by using the sol-gel technique and spin coating technology, a series of mesoporous silica thin films doped by silylated naphthol fluorescence dye were successfully fabricated. By selecting the same surfactant triblock copolymer Pluronic F127 (EO106-PO70-EO106) as structure-directing agent, films with different pore structure and similar aperture size were synthesized under different conditions. The films doping fluorescence dye toward nitro explosive 2, 4, 6-trinitrotoluene (TNT) vapor exhibited rapid response rate and extremely high fluorescent quenching efficiency, close to 96.4 % after 1200 s response. The results clearly showed that pore structure control of mesoporous film was an effective way to improve sensor performance. Mesoporous thin films, with different pore structure, easily to be prepared and owning high sensitivity, could be used as a new alternative of trace explosive detecting material.
AB - Thus, here, by using the sol-gel technique and spin coating technology, a series of mesoporous silica thin films doped by silylated naphthol fluorescence dye were successfully fabricated. By selecting the same surfactant triblock copolymer Pluronic F127 (EO106-PO70-EO106) as structure-directing agent, films with different pore structure and similar aperture size were synthesized under different conditions. The films doping fluorescence dye toward nitro explosive 2, 4, 6-trinitrotoluene (TNT) vapor exhibited rapid response rate and extremely high fluorescent quenching efficiency, close to 96.4 % after 1200 s response. The results clearly showed that pore structure control of mesoporous film was an effective way to improve sensor performance. Mesoporous thin films, with different pore structure, easily to be prepared and owning high sensitivity, could be used as a new alternative of trace explosive detecting material.
KW - Fluorescent spectra
KW - Mesoporous silica film
KW - Porosity
KW - Trace explosive detection
UR - http://www.scopus.com/inward/record.url?scp=84874135837&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.743-744.397
DO - 10.4028/www.scientific.net/MSF.743-744.397
M3 - Conference contribution
AN - SCOPUS:84874135837
SN - 9783037856062
T3 - Materials Science Forum
SP - 397
EP - 401
BT - Energy and Environment Materials
A2 - Tang, Xinfeng
A2 - Wu, Ying
A2 - Yao, Yan
A2 - Zhang, Zengzhi
A2 - Zhang, Zengzhi
PB - Trans Tech Publications Ltd.
T2 - Chinese Materials Congress 2012, CMC 2012
Y2 - 13 July 2012 through 18 July 2012
ER -