Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/37859
Title: Hybrid porous titania phosphonate networks with different bridging functionalities: Synthesis, characterization, and evaluation as efficient solvent separation materials
Authors: PAWLAK, Bram 
MARCHAL, Wouter 
Ramesha, Bharadwaj Mysore
JOOS, Bjorn 
CALVI, Lavinia 
D'HAEN, Jan 
RUTTENS, Bart 
HARDY, An 
Meynen, Vera
ADRIAENSENS, Peter 
CARLEER, Robert 
Issue Date: 2022
Publisher: ELSEVIER
Source: Microporous and mesoporous materials (Print), 341 (Art N° 112080)
Abstract: Hybrid titania phosphonate materials can demonstrate a high added value as tailored sorption materials. They combine high chemical stability with great structural versatility, given the wide diversity of functional groups that can be incorporated. Hereto, a fundamental understanding of the synthesis strategies influencing the material performance is required. Therefore three porous TiO2 phosphonate hybrid structures with different functional groups (octyl, propyl, and phenyl) were evaluated in a solid-phase extraction application aimed towards solvent separation. The synthesis was performed by mixing bridged diphosphonic acids (DPAs) with Ti (OBu)4 in a water-ethanol mixture at 30 degrees C, followed by a hydrothermal post-treatment at 120 degrees C. The materials were characterized by ICP-AES, 31P solid-state CP/MAS NMR, Raman and FTIR spectroscopy, X-ray diffraction, N2-sorption, and transmission electron microscopy. It is shown that the diphosphonic acids are quantitatively incorporated in the hybrid structures, leading to nanosized particles with a complex but uniquely functionalized surface. A study of the pore structure as a function of the incorporated DPA amount showed materials with a maximum BET surface area of 379 m2/g. The alkyl functionalized hybrid titania phosphonates demonstrated excellent and tunable sorption behavior.
Notes: Pawlak, B (corresponding author), UHasselt, Inst Mat Res IMO IMOMEC, Analyt & Circular Chem ACC, Agoralaan, B-3590 Diepenbeek, Belgium.
bram.pawlak@uhasselt.be
Keywords: Hybrid porous titania organophosphonates;Hydrothermal synthesis;31 P solid-state NMR;SPE for Solvent separation
Document URI: http://hdl.handle.net/1942/37859
ISSN: 1387-1811
e-ISSN: 1873-3093
DOI: 10.1016/j.micromeso.2022.112080
ISI #: 000827717900002
Rights: 2022 Elsevier Inc. All rights reserved.
Category: A1
Type: Journal Contribution
Validations: ecoom 2023
Appears in Collections:Research publications

Files in This Item:
File Description SizeFormat 
Hybrid porous titania phosphonate networks with different bridging functionalities_ Synthesis, characterization, and evaluation as efficient solvent separation materials.pdf
  Restricted Access
Published version4.98 MBAdobe PDFView/Open    Request a copy
Hybrid porous.pdf
  Until 2024-08-18
Peer-reviewed author version1.86 MBAdobe PDFView/Open    Request a copy
Show full item record

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.