Zeolite-assisted radiolysis of aromatic chlorides mitigating influence of coexisting ions in water matrix

Kumagai, Yuta; Kimura, Atsushi*; Taguchi, Mitsumasa*; Watanabe, Masayuki

Radiation Physics and Chemistry, 191, p.109831_1 - 109831_8, 2022/02

https://doi.org/10.1016/j.radphyschem.2021.109831

In this study, we investigated and compared the effects of a high-silica zeolite (HMOR) on the radiation-induced degradation of three aromatic chlorides, 2-chlorophenol (2-ClPh), 2-chloroaniline (2-ClAn), and 2-chlorobenzoic acid (2-ClBA), in order to examine its potential to reduce the influence of ions in water matrix in the irradiation treatment of water-soluble organic compounds. In the presence of ions reactive to radicals, the degradation of 2-ClPh in water was inhibited, but the combined use of HMOR much improved the degradation yield. This improvement was attributed to high performance of HMOR in adsorption of 2-ClPh. Similarly, HMOR was effective for adsorption of 2-ClAn and facilitated the 2-ClAn degradation by irradiation. In contrast, HMOR was poor at adsorption of 2-ClBA and consistently the degradation of 2-ClBA in the water-HMOR mixture was inhibited by the radical scavenger. These results demonstrate that HMOR can mitigate the influence of radical scavengers in water.

Molecular change of a sulfur-containing amino acid in aqueous solution with monochromatized soft X-ray irradiation

Yokoya, Akinari; Kobayashi, Katsumi*; Usami, Noriko*

Photon Factory Activity Report, P. 299, 1992/00

no abstracts in English

Radiation-Induced Addition of Sodium Hydrogensulfite to Olefins

;

JAERI 1251, 40 Pages, 1977/09

JAERI-1251.pdf:2.62MB

no abstracts in English

Actibation Energy of Radical Chain Processes

; *

Kagaku, 25(9), p.885 - 900, 1972/00

http://ci.nii.ac.jp/naid/40017541012

no abstracts in English