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114th General Meeting of Korean Chemical Society Adsorption of DPCl and CPCl on negatively charged solid surfaces under geometric confinement: A comparison of SBA-15 and Ti-substitued SBA-15 studied by SANS

Submission Date :
8 / 28 / 2014 , 16 : 20 : 36
Abstract Number :
114082812218
Presenting Type:
Poster Presentation
Presenting Area :
물리화학
Authors :
신태규
한국원자력 연구원 중성자과학연구부, Korea
Assigned Code :
PHYS.P-449 Assigend Code Guideline
Presenting Time :
10월 15일 (수요일) 16:00~19:00
The adsorption behaviour and organisation of the cationic surfactants dodecyl and hexadecyl pyridinium chlorides adsorbed in the cylindrical pores of a periodic mesoporous silica SBA-15 and Ti-substituted SBA-15 were studied by SANS. The combination of attractive solid-wall interaction and repulsive electrostatic interaction between the charged head groups leads to a characteristic adsorption behaviour for Si surface. For Ti-substituted SBA-15 a different adsorption behaviour is expected due to the influence of Ti-substitution on the electrostatic attraction and structural distortion of SBA-15.