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Efficient mineralization of gaseous benzyl chloride by VUV/UV photodegradation in humid air.
- Source :
- Environmental Science & Pollution Research; Jun2021, Vol. 28 Issue 22, p27520-27527, 8p
- Publication Year :
- 2021
-
Abstract
- VUV/UV photodegradation technology, which is free of catalysts or oxidants, has been regarded as an efficient method to decompose gaseous VOCs. However, the mineralization of gaseous VOCs by VUV/UV photodegradation has seldom been discussed systematically. In this work, the mineralization of benzyl chloride in humid air is comprehensively investigated and the potential contributors in the system (i.e., light wavelength, O<subscript>2</subscript> and H<subscript>2</subscript>O) are discussed. As a result, more than 95.0% benzyl chloride is mineralized at 40 min in humid air with 80% relative humidity (RH) despite its initial concentrations (i.e., ranging from 4 to 20 ppm). It is found that both 185-nm VUV light and H<subscript>2</subscript>O significant contribute to the efficient mineralization of benzyl chloride in humid air, while O<subscript>2</subscript> only has a limited effect to the efficient mineralization of benzyl chloride in humid air. The introduction of H<subscript>2</subscript>O into the VUV/UV photodegradation can reduce the emission of ozone obviously. These findings are significant inspiration to application of the VUV/UV photodegradation technology on the treatment of gaseous VOCs in the actual air atmosphere. [ABSTRACT FROM AUTHOR]
- Subjects :
- BENZYL chloride
PHOTODEGRADATION
MINERALIZATION
HUMIDITY
Subjects
Details
- Language :
- English
- ISSN :
- 09441344
- Volume :
- 28
- Issue :
- 22
- Database :
- Complementary Index
- Journal :
- Environmental Science & Pollution Research
- Publication Type :
- Academic Journal
- Accession number :
- 150575810
- Full Text :
- https://doi.org/10.1007/s11356-020-11900-y