The uptake of ethyl iodide on black carbon surface |
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Authors: | Shi Yin WeiGang Wang MaoFa Ge |
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Institution: | (1) State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, China |
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Abstract: | The importance of the iodine chemistry in the atmosphere has been demonstrated by recent observations. The uptake of ethyl
iodine on black carbon surface was investigated at 298 K for the first time. Degussa FW2 (an amorphous black carbon comprising
medium oxides) was used as black carbon sample. Black carbon surface was found to be deactivated in reaction with C2H5I, and the uptake coefficient (γ) was dependent on the time of exposure. The value of (2.3±0.9)×10−2 was determined for the initial uptake coefficient (γ
0). The result suggests that the heterogeneous loss of C2H5I on carbonaceous aerosols may be important under the atmospheric conditions.
Supported by 973 Program of Ministry of Science and Technology of China (Grant No. 2006CB403701), Knowledge Innovation Program
of the Chinese Academy of Sciences (Grant No. KZCX2-YW-205) and Hundred Talents Fund, and the National Natural Science Foundation
of China (Grant Nos. 20577052, 20673123, 20473094 and 20503035) |
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Keywords: | heterogeneous process flow tube ethyl iodine black carbon atmospheric chemistry |
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