هاراد, استوارت ، رابسون, متیو ، حضرتی, صادق ، باکستر پلنت, وی اس ، ردوود, ام دی ، مکاسکی, ال ئی (1386) دهالوژناسیون بی فنیل های پلی کلره و دی فنیل اترهای پلی برمه با استفاده از یک کاتالیست هیبرید بیومعدنی. Journal of Environmental Monitoring ــ 9 (4). ص.ص.314-318. شاپا 1464-0325
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آدرس اینترنتی رسمی : http://www.rsc.org/Publishing/Journals/EM/article....
عنوان انگليسی
Dehalogenation of polychlorinated biphenyls and polybrominated diphenyl ethers using a hybrid bioinorganic catalyst
خلاصه انگلیسی
The environmentally prevalent polybrominated diphenyl ether (PBDE) #47 and polychlorinated biphenyls (PCBs) #28 and #118 were challenged for 24 hours with a novel biomass-supported Pd catalyst (Bio-Pd0). Analysis of the products via GC-MS revealed the Bio-Pd0 to cause the challenged compounds to undergo stepwise dehalogenation with preferential loss of the least sterically hindered halogen atom. A mass balance for PCB #28 showed that it is degraded to three dichlorobiphenyls (33.9%), two monochlorobiphenyls (12%), and biphenyl (30.7%). The remaining mass was starting material. In contrast, while PCB #118 underwent degradation to yield five tetra- and five trichlorinated biphenyls, no less chlorinated products or biphenyl were detected, and the total mass of degraded products was 0.3%. Although the Bio-Pd0 material was developed for treatment of PCBs, a mass balance for PBDE #47 showed that the biocatalyst could prove a potentially useful method for treatment of PBDEs. Specifically, 10% of PBDE #47 was converted to identifiable lower brominated congeners, predominantly the tribrominated PBDE #17 and the dibrominated PBDE #4, 75% remained intact, while 15% of the starting mass was unaccounted for. The Royal Society of Chemistry
نوع سند : | مقاله |
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زبان سند : | انگلیسی |
نویسنده مسئول : | استوارت هاراد |
ضریب تاثیر و نمایه مجلات: | Impact factor: 1.810 Abstracting and Indexing : 1-MEDLINE |
کلیدواژه ها (انگلیسی): | Dehalogenation - polychlorinated biphenyls - polybrominated diphenyl - PCBs -PBDE |
موضوعات : | WA بهداشت عمومي > WA 400 بهداشت حرفه ای WA بهداشت عمومي > WA 400 بهداشت حرفه ای |
بخش های دانشگاهی : | دانشکده بهداشت > گروه بهداشت محیط |
کد شناسایی : | 969 |
ارائه شده توسط : | دکتر صادق حضرتی |
ارائه شده در تاریخ : | 02 اسفند 1388 |
آخرین تغییر : | 19 بهمن 1391 10:13 |
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