The study of degradation of azo dyes using photochemical reaction and titanium dioxide
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39901416" target="_blank" >RIV/00216275:25310/16:39901416 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5593/sgem2016B52" target="_blank" >http://dx.doi.org/10.5593/sgem2016B52</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2016B52" target="_blank" >10.5593/sgem2016B52</a>
Alternative languages
Result language
angličtina
Original language name
The study of degradation of azo dyes using photochemical reaction and titanium dioxide
Original language description
Commercial samples of azo dyes: Saturn Yellow LFF 200, Saturn Red F3B 200 and Saturn Blue LBRR 200 (C.I. Direct Yellow 28, Direct Red 80 and Direct Blue 71) were purified and characterized by elemental analysis and mass spectroscopy. Dissolved dyestuffs have been photolysed in alkaline aqueous suspension (pH = 10) using polychromatic radiation of high pressure mercury lamp and titanium dioxide as a catalyst. The incident radiation (P = 1.21 x 10-4 Es.s-1.L-1) was measured by ferrioxalate actinometry in the range 200-600 nm. Active radiation for excitation of TiO2 (200-400 nm) was P0 = 4.2 x 10-5 Es.s-1.L-1. It was found that Saturn Yellow and Red fulfill the model of heterogeneous photocatalysis, while Saturn Blue decomposes even without catalyst. Kinetic model of heterogeneous photocatalysis was tested. The apparent efficiency of photodegradation (0.2-0.3%) as ratio of excitation rate and incident light was computed.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
DJ - Pollution and water control
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Ecology, Economics, Education and Legislation Conference Proceedings SGEM 2016. VOL II
ISBN
978-619-7105-66-7
ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
863-870
Publisher name
SGEM
Place of publication
Sofia
Event location
Albena
Event date
Jun 30, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000391519600112