Photocatalytic oxidation of toxic organohalides with TiO2/UV: The effects of humic substances and organic mixtures

Chemosphere ◽  
2007 ◽  
Vol 66 (10) ◽  
pp. 1872-1877 ◽  
Author(s):  
Chitsan Lin ◽  
Kuen-Song Lin
Keyword(s):  
Humic Substances ◽  
Photocatalytic Oxidation ◽  
Organic Mixtures

Photocatalytic oxidation of aquatic humic substances using TiO2/UV in a rotating photoreactor

2006 ◽  
Vol 6 (2) ◽  
pp. 93-99
Author(s):  
I. Han ◽  
J.W. Shin ◽  
H.C. Kim
Keyword(s):  
Humic Substances ◽  
Uv Irradiation ◽  
Photocatalytic Oxidation ◽  
Tio2 Photocatalysts ◽  
Photocatalytic Reactor ◽  
Han River ◽  
Humic Materials ◽  
Air Blowing ◽  
Ft Ir ◽  
Uv Lamps

Applicability of a rotating reactor for photocatalytic oxidation of humic substances extracted from the Han River in Seoul, Korea (Han-HS) was investigated. Because air blowing for complete dispersion of TiO2 photocatalysts could inhibit ultraviolet (UV)-irradiation between UV lamps and photocatalysts by air bubbles, a rotating photocatalytic reactor with four baffles was used for better UV-irradiation in this study. Han-HS was extracted and treated with UV-irradiation. Because Han-HS is different from other commercial humic materials (e.g. Aldrich Humic acid and International Humic Substance Society NOM), structural spectroscopic analyses were conducted by FT-IR and 13C-NMR. Immobilized TiO2 coated on hollow beads was used to separate and recover the photocatalyst. During two hours of UV-irradiation, absorbance at 254 nm (UV254) and total organic carbon (TOC) content were monitored. Photocatalytic oxidation efficiencies of different wavelengths of UV lamps (254 nm and 352 nm) were also compared and raw and pre-chlorinated waters of the Han River were used to evaluate the applicability for water treatment.

Photocatalytic oxidation of humic substances with TiO2-coated glass micro-spheres

2004 ◽  
Vol 2 (3) ◽  
pp. 123-127 ◽  
Author(s):  
Elina Portjanskaja ◽  
Marina Krichevskaya ◽  
Sergei Preis ◽  
Juha Kallas
Keyword(s):  
Humic Substances ◽  
Photocatalytic Oxidation ◽  
Coated Glass

Bacterial Co-oxidation of Natural Humic Substances in the Presence of Glucose

2004 ◽  
Vol 40 (1) ◽  
pp. 8
Author(s):  
N. Dzyuban ◽  
E. S. Bikbulatov ◽  
E. M. Bikbulatova ◽  
I. A. Kuznetsova
Keyword(s):  
Co Oxidation ◽  
Humic Substances

"PARAMETERS’ INFLUENCE OF CRUSHING BROWN COAL TO THE EXTRACTION OF HUMIC SUBSTANCES "

2017 ◽  
Vol 17 (6) ◽  
pp. 204-209
Author(s):  
K.S. Votolin ◽  
◽  
S.I. Zherebtsov ◽  
M.Y. Klimovich ◽  
O.V. Smotrina ◽  
...  
Keyword(s):  
Humic Substances ◽  
Brown Coal

EFFICIENT DEGRADATION OF CLOFIBRIC ACID BY HETEROGENEOUS PHOTOCATALYTIC OXIDATION PROCESS

2019 ◽  
Vol 18 (8) ◽  
pp. 1683-1692 ◽  
Author(s):  
Lidia Favier ◽  
Lacramioara Rusu ◽  
Andrei Ionut Simion ◽  
Raluca Maria Hlihor ◽  
Mariana Liliana Pacala ◽  
...  
Keyword(s):  
Photocatalytic Oxidation ◽  
Oxidation Process ◽  
Clofibric Acid
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