Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume 54, Issue 21, Pages 14026-14035Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.est.0c04279
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Funding
- Queen's University Ionic Liquids Laboratories (QUILL)
- Queen's University Belfast, School of Chemistry and Chemical Engineering
- Engineering and Physical Sciences Research Council (UK) grants [EP/R026645/1, EP/M013219/1]
- EPSRC [EP/R026645/1, EP/M013219/1] Funding Source: UKRI
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Materials have been developed that encapsulate a homogeneous catalyst and enable it to operate as a heterogeneous catalyst in water. A hydrophobic ionic liquid within the material was used to dissolve Fe-TAML and keep it from leaching into the aqueous phase. One-pot processes were used to entrap Fe-TAML in basic ionic liquid gels, and ionic liquid gel spheres structured via a modified Stober synthesis forming SiO2 particles of uniform size. Catalytic activity was demonstrated via the oxidative degradation of dyes. Fe-TAML entrapped in a basic ionic liquid gel exhibited consistent activity in five recycles. This discovery of heterogenized H2O2 activators prepared by sol-gel and Stober processes opens new possibilities for the creation of engineered catalytic materials for water purification.
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