Radiolysis of 2,2',3,3',4,4',5,5',6,6'-Bromdiphenyl Ether Solutions by UV and Electron Beams

Abstract:

2,2',3,3',4,4',5,5',6,6'-bromdiphenyl ether (BDE-209) solutions were irradiated with ultraviolet (UV) and electron beams. Organic compounds were fully removed by each type of radiation. The absorbed energy of the ionizing radiation (electron beams) needed for removal was much lower than that of UV photocatalysis. BDE-209 removal using the ionizing radiation was accelerated drastically by dosage. It is suggested that pH value of solution affect the decomposition rates. Radiolysis with the high pH value showed consistently high rate and high efficiency of BDE-209 removal.

• Periodical: Advanced Materials Research (Volumes 356-360)
• Pages: 614-619
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.356-360.614
• Online since: October 2011
• Authors: Wen Yan Shi, Jian Zhong Gu, Wen Jing Wu, Yan Feng Sun, Rui Yun Guo, Gang Xu, Gu Yu Hu, Jian Qiu Lei, Ming Hong Wu
• Keywords: Electron Beam, Laser Flash Photolysis, Transient Absorption, Ultraviolet

References

[1] Gutman, E. et al. Thermal analysis of the polymerization process on the surface of inorganic fillers. J. Therm. Anal., 1996, 46, 1541-1550.

[2] Darnerud, P.O. Toxic effects of brominated flame retardants in man and in wildlife. Environment International, 2003, 29: 841–853.

DOI: 10.1016/s0160-4120(03)00107-7

[3] Freeman, K., Haugen, P., Christian, M. Differential photohydrodehalogenation reactivity of bromobenzenes 1,2,4-tribromobenzene, 1,2,3,5-tetrabromobenzene. And pentachlorobenzene: sunlight-based remediation. J. Chem. Technol. Biotechnol., 1998, 72, 45-49.

DOI: 10.1002/(sici)1097-4660(199805)72:1<45::aid-jctb865>3.0.co;2-l

[4] Alaee, M., Muir, D., Cannon, C., Helm, P., Hraner, T., Bidelman, T. Sources, occurrence, trends and pathways in the physical environment, Canadian Arctic contaminants assessment report II. Environ Canada, 2003, 611-620.

[5] Guangming Zhang, Inez Hua. Ultrasonic degradation of trichloroacetonitrile, chloropicrin and bromobenzene: design factors and matrix effects. Advances in Environmental Research, 2000, 4, 211-218.

DOI: 10.1016/s1093-0191(00)00021-6

[6] Alaee, M., Arias, P., Sjodin, A., Bergman, A. An overview of commercially used brominated flame retardants, their applications, their use patterns in different countries/regions and possible modes of release. Environ. Int., 2003, 29: 683–689.

DOI: 10.1016/s0160-4120(03)00121-1

[7] Norihisa Chitose, Shinzo Ueta, Satoshi Seino, Takao A. Yamamoto. Radiolysis of aqueous phenol solutions with nanoparticles. 1. Phenol degradation and TOC removal in solutions containing TiO2 induced by UV, c-ray and electron beams. Chemosphere, 2003,50, 1007–1013.

DOI: 10.1016/s0045-6535(02)00642-2

[8] Alcock, R.E., Sweetman, A.J., Prevedouros, K., Jones, K.C. Understanding levels and trends of BDE-47 in the UK and North America: an assessment of principal reservoirs and source inputs. Environ. Int., 2003, 29: 691–698.

DOI: 10.1016/s0160-4120(03)00120-x

[9] Betts, K.S. Rapidly rising PBDE levels in North America. Environ. Sci. Technol., 2002, 36: 50–52.

DOI: 10.1021/es022197w

[10] Pikaev, A.K. Current status of the application of ionizing radiation to environmental protection. I. Ionizing radiation sources, natural and drinking water purification (a review). High Energy Chem., 2000, 34, 1-12.

DOI: 10.1007/bf02761780

[11] Pikaev, A.K. Current status of the application of ionizing radiation to environmental protection: II. Wastewater and other liquid wastes (a review). High Energy Chem., 2000, 34, 55–73.

DOI: 10.1007/bf02761832

[12] Chenyang Zhao, Yimin Shi, Wenfeng Wang, Zhongjian Jia, Side Yao, Botao Fan and Rongliang Zheng. Fast repair of deoxythymidine radical anions by two polyphenols: rutin and quercetin. Biochemical Pharmacology, 2003, 65(1): 1967-1971.

DOI: 10.1016/s0006-2952(03)00196-5