Skip to main content

Research Repository

See what's under the surface

Advanced Search

Assessing the life cycle environmental impacts of titania nanoparticle production by continuous flow solvo/hydrothermal synthesis

Caramazana-Gonzalez, P.; Dunne, Peter W.; Gimeno-Fabra, Miquel; Zilka, Miroslav; Ticha, M.; Stieberova, B.; Freiberg, F.; McKechnie, Jon; Lester, Edward

Authors

P. Caramazana-Gonzalez

Peter W. Dunne

Miquel Gimeno-Fabra

Miroslav Zilka

M. Ticha

B. Stieberova

F. Freiberg

Jon McKechnie

Edward Lester



Abstract

Continuous-flow hydrothermal and solvothermal syntheses offer substantial advantages over conventional processes, producing high quality materials from a wide range of precursors. In this study, we evaluate the “cradle-to-gate” life cycle environmental impacts of alternative titanium dioxide (TiO₂) nanoparticle production parameters, considering a range of operational conditions, precursors, material properties and production capacities. A detailed characterisation of the nano-TiO₂ products allows us, for the first time, to link key nanoparticle characteristics to production parameters and environmental impacts, providing a useful foundation for future studies evaluating nano-TiO₂ applications. Five different titanium precursors are considered, ranging from simple inorganic precursors, like titanium oxysulphate (TiOS), to complex organic precursors such as titanium bis(ammonium-lactato)dihydroxide (TiBALD). Synthesis at the laboratory scale is used to determine the yield, size distribution, crystallinity and phase of the nanoparticles. The specifications and operating experience of a full scale plant (>1000 t per year) are used to estimate the mass and energy inputs of industrial scale production for the life cycle assessment. Overall, higher process temperatures are linked to larger, more crystalline nanoparticles and higher conversion rates. Precursor selection also influences nano-TiO₂ properties: production from TiOS results in the largest particle sizes, while TiBALD achieves the smallest particles and narrowest size distribution. Precursor selection is the main factor in determining cradle-to-gate environmental impacts (>80% in some cases), due to the production impact of complex organic precursors. Nano-TiO2 production from TiOS shows the lowest global warming potential (GWP) (

Journal Article Type Article
Journal Green Chemistry
Print ISSN 1463-9262
Electronic ISSN 1463-9262
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 19
APA6 Citation Caramazana-Gonzalez, P., Dunne, P. W., Gimeno-Fabra, M., Zilka, M., Ticha, M., Stieberova, B., …Lester, E. (in press). Assessing the life cycle environmental impacts of titania nanoparticle production by continuous flow solvo/hydrothermal synthesis. Green Chemistry, 19, doi:10.1039/C6GC03357A
DOI https://doi.org/10.1039/C6GC03357A
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2017/GC/C6GC03357A#!divAbstract
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

Files

C6GC03357A.pdf (2.2 Mb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





You might also like



Downloadable Citations

;