Study on formaldehyde degradation using strong ionization discharge

The degradation of Alizarin red dye (Anthraquinone) was investigated using a novel technique of strong ionization discharge to generate high oxidation active species from oxygen. Under the optimum conditions, AR dye was almost removed with degradation rate reaching 95%, by radicals such as •OH and O3 generated within the strong ionization discharge reactor. The intermediate products were analyzed by ultraviolet (UV) spectroscopy, total organic carbon (TOC) analysis, liquid chromatography-mass spectrometry (LC-MS) and ion chromatography (IC) to validate the degradation efficiency of the strong ionization discharge for AR dye and to deduce its possible decomposition pathway. Finally, It has been confirmed that the sulfur element on AR molecule results into sulfate, an environmentally friendly substance. This work shows that the strong ionization discharge can efficiently be used for the degradation of Anthraquinone dyes as well as other extensively used textile dyes.

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·OH Treatment for Killing of Harmful Organisms in Ship’s Ballast Water with Medium Salinity Based on Strong Ionization Discharge

Plasma Chemistry and Plasma Processing ◽

10.1007/s11090-013-9464-6 ◽

2013 ◽

Vol 33 (4) ◽

pp. 751-763 ◽

Cited By ~ 15

Author(s):

Yubo Zhang ◽

Mindong Bai ◽

Cao Chen ◽

Xiangying Meng ◽

Yiping Tian ◽

...

Keyword(s):

Ballast Water ◽

Harmful Organisms ◽

Strong Ionization Discharge ◽

Ship’S Ballast Water

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A New Method of Activated Carbon Loading MnO2 to Formaldehyde Degradation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.332-334.1743 ◽

2011 ◽

Vol 332-334 ◽

pp. 1743-1746 ◽

Cited By ~ 3

Author(s):

Yu Ke Yang ◽

Hua Zhang ◽

Shao Gang Jin

Keyword(s):

Air Pollution ◽

Activated Carbon ◽

Indoor Air ◽

Indoor Air Pollution ◽

Catalytic Effect ◽

Adsorption Effect ◽

Carbon Particles ◽

Formaldehyde Degradation ◽

Activated Carbon Particles ◽

Carbon Loading

The major indoor air pollution-formaldehyde has been a serious threat to our lives to our lives, and accordingly the formaldehyde degradation has turned into a concerned issue of public. This paper has based on a number of degradation methods and combined the adsorption effect of activated carbon with the catalytic effect of MnO2 to remove formaldehyde. The results show that the Nano-MnO2 particles loaded the surface of activated carbon particles possesses smaller sizes, better dispersion and no agglomeration, and consequently the AC/MnO2 compounds degraded formaldehyde effectively.

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Formaldehyde degradation in Corynebacterium glutamicum involves acetaldehyde dehydrogenase and mycothiol-dependent formaldehyde dehydrogenase

Microbiology ◽

10.1099/mic.0.072413-0 ◽

2013 ◽

Vol 159 (Pt_12) ◽

pp. 2651-2662 ◽

Cited By ~ 19

Author(s):

Lennart Lessmeier ◽

Michael Hoefener ◽

Volker F. Wendisch

Keyword(s):

Corynebacterium Glutamicum ◽

Formaldehyde Dehydrogenase ◽

Acetaldehyde Dehydrogenase ◽

Formaldehyde Degradation

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Photocatalytic Degradation of Gaseous Formaldehyde by Modified Hierarchical TiO2 Nanotubes at Room Temperature

Australian Journal of Chemistry ◽

10.1071/ch15484 ◽

2016 ◽

Vol 69 (3) ◽

pp. 343 ◽

Cited By ~ 4

Author(s):

Di Gu ◽

Baohui Wang ◽

Yanji Zhu ◽

Hongjun Wu

Keyword(s):

Indoor Air ◽

Room Temperature ◽

Air Pollutant ◽

Noble Metal Nanoparticles ◽

Reaction Rate Constants ◽

Volatile Organic ◽

Major Process ◽

Formaldehyde Degradation ◽

Tio2 Nts ◽

Gaseous Formaldehyde

As a major indoor air pollutant, formaldehyde released from building and furnishing materials is one of the main volatile organic compounds (VOCs). Hierarchical TiO2 nanotube arrays (TiO2 NTs) prepared via a facile two-step anodization showed excellent photocatalytic (PC) degradation of formaldehyde at room temperature. Modification with noble metal nanoparticles (NMNs) could further improve the PC activity of TiO2 NTs. The final products of formaldehyde degradation were detected to be CO2 and H2O, which indicated that the mineralization of formaldehyde was the major process in this PC reaction. The reaction rate constants (k) determined for the three catalysts were in the order kTiO2 NTs < kAu/TiO2 NTs < kPt/TiO2 NTs (Pt/TiO2 NTs had the highest PC ability). The significant enhancement of PC performance can be ascribed to the formation of a Schottky junction between the NMNs and TiO2 NTs.

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