MIPs logo MIPdatabase      MIP2024 Conference banner, website is now open, register on site for important updates   
Custom Search
Reference type: Conference Proceeding
Authors: Escobar CE, dos Santos JHZ
Publication date: 2014
Article title: The effect of the imprinted silicas prepared by sol-gel route on adsoption of rhodamine B: Textural and structural aspects.
Alternative URL: http://www.unifesp.br/home_diadema/eba2014/br/resumos/R0079-2.PDF

Conference information: Proceedings (online) of the 10th Brazilian Meeting on Adsorption

Abstract: A series of silica xerogels, bearing Rhodamine B as the template were synthesized by distinct sol-gel routes, namely: acid-catalyzed, basic catalyzed, acid, followed by basic catalysis (two steps) hydrolytic routes and a FeCl3 catalyzed non-hydrolytic route. The extraction method (thermal, Soxhlet, water washing, ultrassound) was also evaluated. The resulting xerogels were characterized by porosimetry by the adsorption/desorption of nitrogen (BET method), Fourier-transform infrared spectroscopy (FTIR) and zeta potential. The preparation route did affect the textural properties of the materials. The best extraction capacity was achieved by acid and two-steps routes. Acid route showed the highest selectivity factor (2.5) between Rhodamine B and Rhodamine 6G. The best imprinting factor was achieved by the non-hydrolytic route. Competitive adsorptions were also carried out, resulting in an imprinting factor about 2. Apparently, the selectivity appears to be dictated by the shape generated through encapsulation and extraction rather than the magnitude of the surface area.
Template and target information: Rhodamine B
Author keywords: sol-gel, molecular imprinting, silica

  Periodic table Trainer shirt  PhD Scientist peptide mug  We need to talk about Kelvin shirt


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner