Photoddegradation of Methyl tert-butyl Ether (MTBE) by UV/H202 and UV/TiO2

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dc.contributor.authorZhang, Carl
dc.date.accessioned2020-04-09T18:51:38Z
dc.date.available2020-04-09T18:51:38Z
dc.date.issued2008
dc.description.abstractTwo UV-based advanced oxidation processes (AOPs), UV/H2O2 and UV/TiO2, were tested in batch reactor systems to evaluate the removal efficiencies and optimal conditions for the photodegradation of methyl tert-butyl ether (MTBE). The optimal conditions at an initial MTBE concentration of 1 mM ([MTBE]0=1 mM) were acidic and 15 mM H2O2 in UV/H2O2 system, and pH 3.0 and 2.0 g/l TiO2 in UV/TiO2 suspended slurries system under 254-nm UV irradiation. Under the optimal conditions, MTBE photodegradation during the initial period of 60 min in UV/H2O2 and UV/TiO2 systems reached 98 and 80%, respectively. In both systems, MTBE photodegradation decreased with increasing [MTBE]0. While MTBE photodegradation rates increased with increasing dosage of H2O2 (5-15 mM) and TiO2 (0.5-3 g/l), further increase in the dosage of H2O2 (20 mM) or TiO2 (4 g/l) adversely reduced the MTBE photodegradation. Pseudo first-order kinetics with regard to [MTBE] can be used to describe the MTBE photodegradation in both systems. The pseudo first-order rate constants linearly increased with the increase in the molar ratio of [H2O2]0 to [MTBE]0 in UV/H2O2 system and linearly increased with the decrease in [MTBE]0 in UV/TiO2 systemen_US
dc.identifier.citationHu Q, Zhang C, Chen Y, Xiong Y, Mao K, Wang Z, Tang X (2008), Photoddegradation of Methyl tert-butyl Ether (MTBE) by UV/H2O2 and UV/TiO2, Journal of Hazardous Materials, 154(1-3):795-803. 30en_US
dc.identifier.urihttps://hdl.handle.net/10657.1/2247
dc.publisherJournal of Hazardous Materialsen_US
dc.subjectMolecule methyl tert-butyl ether MTBE Chemicals methyl tert-butyl etheren_US
dc.titlePhotoddegradation of Methyl tert-butyl Ether (MTBE) by UV/H202 and UV/TiO2en_US
dc.typeArticleen_US

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College of Science and Engineering
Chunlong (Carl) Zhang