Degradation characteristic of monoazo, diazo and anthraquinone dye by UV/H{sub 2}O{sub 2} process
Journal Article
·
· AIP Conference Proceedings
In this study, the degradation characteristic of monoazo, diazo and anthraquinone dye by UV/H{sub 2}O{sub 2} process was evaluated based on the trend of color, chemical oxygen demand (COD) and total organic carbon (TOC) removal. Three types of dyes consist of monoazo, diazo and anthraquinone dyes were used to compare the degradation mechanism of the dyes. The UV/H{sub 2}O{sub 2} experiments were conducted in a laboratory scale cylindrical glass reactor operated in semi-batch mode. The UV/Vis characterization of monoazo, diazo and anthraquinone dye indicated that the rapid degradation of the dyes by UV/H{sub 2}O{sub 2} process is meaningful with respect to decolourization, as a result of the azo bonds and substitute antraquinone chromophore degradation. However, this process is not efficient for aromatic amines removal. The monoazo MO was difficult to be decolorized than diazo RR120 dye, which imply that number of sulphonic groups in the dye molecules determines the reactivity with hydroxyl radical. The increased in COD removal is the evidence for oxidation and decreased in carbon content of dye molecules. TOC removal analysis shows that low TOC removal of monoazo MO and diazo RR120, as compared to anthraquinone RB19 may indicate an accumulation of by-products that are resistant to the H{sub 2}O{sub 2} photolysis.
- OSTI ID:
- 22308882
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1621; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
THE GAMMA RADIOLYSIS OF AQUEOUS AND ALCOHOLIC SOLUTIONS OF ORANGE IV. Thesis
Environmental photochemistry on semiconductor surfaces. Visible light induced degradation of a textile diazo dye, naphthol blue black, on TiO{sub 2} nanoparticles
GAMMA RAY INDUCED DECOMPOSITION OF ORAGNE IV IN AQUEOUS AND ALCOHOLIC SOLUTIONS
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1962
·
OSTI ID:4103722
Environmental photochemistry on semiconductor surfaces. Visible light induced degradation of a textile diazo dye, naphthol blue black, on TiO{sub 2} nanoparticles
Journal Article
·
Thu May 16 00:00:00 EDT 1996
· Journal of Physical Chemistry
·
OSTI ID:263189
GAMMA RAY INDUCED DECOMPOSITION OF ORAGNE IV IN AQUEOUS AND ALCOHOLIC SOLUTIONS
Technical Report
·
Sat Dec 31 23:00:00 EST 1960
·
OSTI ID:4793492