title: Quick high-temperature hydrothermal synthesis of mesoporous materials with 3D cubic structure for the adsorption of lysozyme.
abstract: Three-dimensional cage-like mesoporous FDU-12 materials with large tuneable pore sizes ranging from 9.9 to 15.6 nm were prepared by varying the synthesis temperature from 100 to 200 °C for the aging time of just 2 h using a tri-block copolymer F-127(EO106PO70EO106) as the surfactant and 1,3,5-trimethyl benzene as the swelling agent in an acidic condition. The mesoporous structure and textural features of FDU-12-HX (where H denotes the hydrothermal method and X denotes the synthesis temperature) samples were elucidated and probed using x-ray diffraction, N2adsorption,29Si magic angle spinning nuclear magnetic resonance, scanning electron microscopy and transmission electron microscopy. It has been demonstrated that the aging time can be significantly reduced from 72 to 2 h without affecting the structural order of the FDU-12 materials with a simple adjustment of the synthesis temperature from 100 to 200 °C. Among the materials prepared, the samples prepared at 200 °C had the highest pore volume and the largest pore diameter. Lysozyme adsorption experiments were conducted over FDU-12 samples prepared at different temperatures in order to understand their biomolecule adsorption capacity, where the FDU-12-HX samples displayed high adsorption performance of 29μmol g-1in spite of shortening the actual synthesis time from 72 to 2 h. Further, the influence of surface area, pore volume and pore diameter on the adsorption capacity of FDU-12-HX samples has been investigated and results are discussed in correlation with the textural parameters of the FDU-12-HX and other mesoporous adsorbents including SBA-15, MCM-41, KIT-5, KIT-6 and CMK-3.
authors.affiliation: Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, #75 Corner Cooper and College Road, Brisbane 4072, QLD, Australia.
authors.forename: Geoffrey
authors.initials: G
authors.lastname: Lawrence
authors.affiliation: Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, #75 Corner Cooper and College Road, Brisbane 4072, QLD, Australia.
authors.forename: Arun V
authors.initials: AV
authors.lastname: Baskar
authors.affiliation: Petrochemical Research Chair, Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
authors.forename: Mohammed H
authors.initials: MH
authors.lastname: El-Newehy
authors.affiliation: Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, #75 Corner Cooper and College Road, Brisbane 4072, QLD, Australia.
authors.forename: Wang Soo
authors.initials: WS
authors.lastname: Cha
authors.affiliation: Petrochemical Research Chair, Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
authors.forename: Salem S
authors.initials: SS
authors.lastname: Al-Deyab
authors.affiliation: Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, #75 Corner Cooper and College Road, Brisbane 4072, QLD, Australia.
authors.forename: Ajayan
authors.initials: A
authors.lastname: Vinu
keywords: adsorption; mesoporous; nanoporous