Cited by 43Atmospheric chemistry and aerosolsAtmospheric aerosols and cloudsAtmospheric Ozone and Climate

Heterogeneous reaction of N 2 O 5 with airborne TiO 2 particles and its implication for stratospheric particle injection

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Tang, M. J., Telford, P. J., Pope, F. D., Rkiouak, L., Abraham, N. L., Archibald, A. T., Braesicke, P., Pyle, J. A. +4 more·2014·Atmospheric Chemistry and Physics

Published version of a preprint

Abstract

Abstract. Injection of aerosol particles (or their precursors) into the stratosphere to scatter solar radiation back into space has been suggested as a solar-radiation management scheme for the mitigation of global warming. TiO2 has recently been highlighted as a possible candidate particle because of its high refractive index, but its impact on stratospheric chemistry via heterogeneous reactions is as yet unknown. In this work the heterogeneous reaction of airborne sub-micrometre TiO2 particles with N2O5 has been investigated for the first time, at room temperature and different relative humidities (RH), using an atmospheric pressure aerosol flow tube. The uptake coefficient of N2O5 onto TiO2, γ(N2O5), was determined to be ~1.0 × 10−3 at low RH, increasing to ~3 × 10−3 at 60% RH. The uptake of N2O5 onto TiO2 is then included in the UKCA chemistry–climate model to assess the impact of this reaction on stratospheric chemistry. While the impact of TiO2 on the scattering of solar radiation is chosen to be similar to the aerosol from the Mt Pinatubo eruption, the impact of TiO2 injection on stratospheric N2O5 is much smaller.

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Crossref · 10.5194/acp-14-6035-2014

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Authors
Tang, M. J., Telford, P. J., Pope, F. D., Rkiouak, L., Abraham, N. L., Archibald, A. T., Braesicke, P., Pyle, J. A., McGregor, J., Watson, I. M., Cox, R. A., & Kalberer, M.
Affiliations
  • University of Cambridge (GB)
  • University of Birmingham (GB)
  • University of Sheffield (GB)
  • University of Bristol (GB)
Corresponding author
  • Tang, M. J.
  • Pope, F. D.
  • Pyle, J. A.
  • Kalberer, M.
Venue
Atmospheric Chemistry and Physics
Published
2014-06-18
Volume
14
Issue
12
Pages
6035-6048
ISSN
  • 1680-7316 (ISSN-L)
  • 1680-7324
OpenAlex
W2106730157
Cited by
43
References
79
Citations by year
2025: 2 · 2024: 2 · 2022: 12 · 2021: 2 · 2020: 5 · 2019: 2 · 2018: 5 · 2017: 3 · 2016: 5 · 2015: 3 · 2014: 2
FWCI
2.88
Type
journal article
Language
en
Open access
Locations
  • Atmospheric chemistry and physics (publishedVersion, cc-by)
  • Bristol Research (University of Bristol) (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion, cc-by)
  • Explore Bristol Research (submittedVersion)
Funders
  • Engineering and Physical Sciences Research Council (EP/I01473X/1)
  • Natural Environment Research Council (ncas10009)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Atmospheric chemistry and aerosols
  • Physical Sciences › Environmental Science › Global and Planetary Change › Atmospheric aerosols and clouds
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Atmospheric Ozone and Climate
Keywords
N2O5, TiO2 particles, heterogeneous reactions, stratospheric aerosol injection, solar radiation management, uptake coefficient, relative humidity, stratospheric chemistry, Mount Pinatubo eruption

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