Effect of the sol–gel route on the textural characteristics of silica imprinted with Rhodamine B
作者： Cícero de Coelho Escobar , João Henrique Zimnoch dos Santos , None
关键词:
摘要: A series of silica xerogels that support Rhodamine B as a template were synthesized using distinct sol-gel routes, namely, acid-catalyzed base-catalyzed route, with (two steps) hydrolytic and FeCl3 -catalyzed nonhydrolytic route. The extraction methods (thermal, Soxhlet, water washing, ultrasound) also evaluated. resulting characterized through porosimetry nitrogen adsorption/desorption. samples further analyzed small-angle X-ray scattering, Fourier transform infrared spectroscopy, SEM. preparation route affected the materials' textural properties. Extraction was optimized acid two-step routes. from to 6G generated highest selectivity factor (2.5). produced best imprinting factor. Competitive adsorption used, which approximate 2. cavity shape during production imprinted dictates behavior, not magnitude surface area.
sci-hub.se 参考文章(39)
John N. Hay, Hema M. Raval, Preparation of Inorganic Oxides via a Non-Hydrolytic Sol-Gel Route Journal of Sol-Gel Science and Technology. ,vol. 13, pp. 109- 112 ,(1998) , 10.1023/A:1008615708489
J. Limpo, M.C. Bautista, J. Rubio, J.L. Oteo, Effect of heating on surface area and pore size distribution of monolithic silica gels. Studies in Surface Science and Catalysis. ,vol. 87, pp. 429- 437 ,(1994) , 10.1016/S0167-2991(08)63104-3
Marta Elena D�az-Garc�a, Rosana Bad�a La�n�o, Molecular Imprinting in Sol-Gel Materials: Recent Developments and Applications Mikrochimica Acta. ,vol. 149, pp. 19- 36 ,(2005) , 10.1007/S00604-004-0274-7
Everton C. Morais, Gabriel G. Correa, Rodrigo Brambilla, João Henrique Z. dos Santos, Adriano G. Fisch, Selective silica-based sorbent materials synthesized by molecular imprinting for adsorption of pharmaceuticals in aqueous matrices. Journal of Separation Science. ,vol. 36, pp. 636- 643 ,(2013) , 10.1002/JSSC.201200774
Won Jo Cheong, Song Hee Yang, Faiz Ali, None, Molecular imprinted polymers for separation science: a review of reviews. Journal of Separation Science. ,vol. 36, pp. 609- 628 ,(2013) , 10.1002/JSSC.201200784
Wilney de Jesus Rodrigues Santos, Murilo Santhiago, Inez Valeria Pagotto Yoshida, Lauro Tatsuo Kubota, Electrochemical sensor based on imprinted sol–gel and nanomaterial for determination of caffeine Sensors and Actuators B-chemical. ,vol. 166, pp. 739- 745 ,(2012) , 10.1016/J.SNB.2012.03.051
Santhakumar Dhanya, Jaisy Joy, Talasila P. Rao, Fabrication and characterization of rhodamine 6G entrapped sol–gel film test strip for virtually specific and sensitive sensing of nitrite Sensors and Actuators B-chemical. ,vol. 173, pp. 510- 516 ,(2012) , 10.1016/J.SNB.2012.07.050
Jin-Bao Wu, Yan-Li Yi, Removal of cadmium from aqueous solution by organic-inorganic hybrid sorbent combining sol-gel processing and imprinting technique Korean Journal of Chemical Engineering. ,vol. 30, pp. 1111- 1118 ,(2013) , 10.1007/S11814-012-0226-6
Keith Farrington, Fiona Regan, Molecularly imprinted sol gel for ibuprofen: An analytical study of the factors influencing selectivity Talanta. ,vol. 78, pp. 653- 659 ,(2009) , 10.1016/J.TALANTA.2008.12.013
Everton C. Morais, Gabriel G. Correa, Rodrigo Brambilla, Paolo R. Livotto, João Henrique Z. dos Santos, Mateus Borba Cardoso, Silica imprinted materials containing pharmaceuticals as a template: textural aspects Journal of Sol-Gel Science and Technology. ,vol. 64, pp. 324- 334 ,(2012) , 10.1007/S10971-012-2861-0