Grafting mesoporous silica particles to substrates: a method for synthesizing mesoporous films with cylindrical pores perpendicular to the substrate
2013 (English)Manuscript (preprint) (Other academic)
A method for synthesizing mesoporous silica films with cylindrical pores perpendicular to the substrate has been developed. The films consist of SBA-15 platelets that are grafted on glass substrates. The grafting is studied in terms of parameters such as pH, substrate functionalization, salt additions, time for TEOS prehydrolysis, and calcination. The best coverage of particles on the substrate was achieved for a low pH in combination with OTS-treated glass substrate. Furthermore, the prehydrolysis time of the TEOS was found to be a key parameter in order to bind the particles to the substrate. These porous films have potential in applications such as catalysis, drug delivery, and as a template for nanoparticle or nanorod, growth.
Place, publisher, year, edition, pages
Mesoporous silica films, platelets, particle functionalization, substrate functionalization, pH, salt
IdentifiersURN: urn:nbn:se:liu:diva-99857OAI: oai:DiVA.org:liu-99857DiVA: diva2:658450