Journal
SUSTAINABLE CHEMISTRY AND PHARMACY
Volume 11, Issue -, Pages 1-11Publisher
ELSEVIER
DOI: 10.1016/j.scp.2018.11.004
Keywords
Trichlorobenzenes; Photocatalyst; Photodegradation; Photolysis mechanisms
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Funding
- Russian Scientific Foundation [17-79-20165]
- Ural Branch of Russian Academy of Sciences [18-3-3-20]
- Russian Science Foundation [17-79-20165] Funding Source: Russian Science Foundation
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The chemical stability and hydrophobic nature of chloroarenes make them a persistent environmental hazard. Modeling of 1,2,4-trichlorobenzene (1,2,4-TCB) degradation in alcohol-water solution under UV irradiation was carried out with the aim of probing how the 1,2,4-TCB might behave in the environment. The photocatalytic activity of both bare TiO2 and TiO2 doped by colloidal CdS nanoparticles synthesized by the sol-gel method has been investigated in the processes of 1,2,4-TCB photodegradation in the aqueous protic solvent. Non-sensitized TiO2 cannot be regarded as catalyst for the 1,2,4-TCB photodecomposition. On the contrary, the CdS/TiO2 composite accelerated the 1,2,4-TCB photodegradation process. The concentration of CdS/TiO2 was shown to effect on the 1,2,4-TCB photolysis mechanisms, which resulted in the quantitative ratios of the 1,2,4-TCB photolysis products.
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