Development of air purification device through application of thin-film photocatalyst

Kim, Jong-Ho; Seo, Gon; Cho, Dong-Lyun; Choi, Byungchul; Kim, Jong-Beom; Park, Hee-Ju; Kim, Myung-Wan; Song, Sun-Jung; Kim, Geon-Joong; Kato, Shigekazu

doi:10.1016/j.cattod.2005.10.058

Cited by 19 publications

(5 citation statements)

References 6 publications

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“…The organic and inorganic pollutants in the indoor air such as formaldehyde, acetaldehyde, benzene, toluene, acetone, ammonia and NO x can all be photo-oxidized into CO 2 , H 2 O and mineral acids on TiO 2 or other photocatalysts [162,[167][168][169][170]. Bacteria in the indoor air can also be removed by photocatalytic decomposition [171], which is also important for indoor air purification [172]. Because TiO 2 is only active upon UV excitation, there has been much effort to develop second-generation TiO 2 photocatalysts that can be operated not only under UV but also visible light irradiation [173,174].…”

Section: Photocatalysismentioning

confidence: 99%

The abatement of major pollutants in air and water by environmental catalysis

He²,

Chun³

et al. 2013

Front. Environ. Sci. Eng.

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This review reports the research progress in the abatement of major pollutants in air and water by environmental catalysis. For air pollution control, the selective catalytic reduction of NO x (SCR) by ammonia and hydrocarbons on metal oxide and zeolite catalysts are reviewed and discussed, as is the removal of Hg from flue gas by catalysis. The oxidation of Volatile organic compounds (VOCs) by photo-and thermal-catalysis for indoor air quality improvement is reviewed. For wastewater treatment, the catalytic elimination of inorganic and organic pollutants in wastewater is presented. In addition, the mechanism for the procedure of abatement of air and water pollutants by catalysis is discussed in this review. Finally, a research orientation on environment catalysis for the treatment of air pollutants and wastewater is proposed.Keywords air pollution control, wastewater treatment, DeNO x , selective catalytic reduction (SCR), Volatile organic compounds (VOCs), environmental catalysis 2.1 The development of NH 3 -SCR catalysts 2.1.1 Chemical reaction and mechanism of NH 3 -SCR at high temperatureThe commercial catalysts for stationary sources, such as power plants and industrial boilers, are based on a hightemperature SCR (HT-SCR) catalyst, V 2 O 5 -WO 3 (or MoO 3 )/TiO 2 , that operates in the high-temperature range of 350°C-430°C [1]. V 2 O 5 is the main active component for the catalytic reduction of NO x , whereas WO 3 is used as an additive to increase the catalytic activity and the thermal

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Section: Photocatalysismentioning

confidence: 99%

The abatement of major pollutants in air and water by environmental catalysis

He²,

Chun³

et al. 2013

Front. Environ. Sci. Eng.

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“…In recent decades, the application of PC processes for indoor air pollution control has received considerable attention due to the high potential to kill and prevent the growth of microorganisms. And while its use for water purification is well established, its application for large-scale air purification is practically non-existent [13,14]. Recently, some review articles have highlighted the advances on the development of novel materials or surface treatments that can be used for photocatalytic air purification [15,16].…”

Section: Introductionmentioning

confidence: 99%

Surface Treatments on Additively Manufactured Ti6Al4V Parts for the Formation of Photocatalytic Nanostructured Surfaces with Antibacterial Properties

Arcas,

Martín,

Ibiza

et al. 2023

Anm 2022

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“…These nanomaterials were shown to be effective in air purification systems (Kim et al 2006;Nonami et al 2004) and groundwater and wastewater treatments (Elliott and Zhang 2001;Hu et al 2005) due to their unique properties such as higher surface area to volume ratio and higher reactivity compared to regular materials of the same chemical composition. While some applications of nanomaterials such as in environmental remediation have already been investigated comprehensively, the possibilities of applying nanotechnology to address issues with gas emissions from swine facilities have not yet been explored.…”

Section: Introductionmentioning

confidence: 99%

Mixing nanoparticles with swine manure to reduce hydrogen sulfide and ammonia emissions

Alvarado

Predicala

Asis

2014

Int. J. Environ. Sci. Technol.

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Addition of nanoparticles into swine manure was investigated as a possible measure to mitigate the emissions of hydrogen sulfide and ammonia from swine production facilities. Bench-scale experiments were conducted, followed by room-scale tests in controlled environment chambers closely representing actual swine production rooms. Among the 12 types of commercial nanoparticles tested, zinc oxide nanoparticles achieved significant reduction in gaseous hydrogen sulfide and ammonia concentrations when mixed into the manure at a rate of 3 g zinc oxide nanoparticles per liter of manure slurry. Room-scale experiments showed that mean initial hydrogen sulfide concentrations of 596, 57 and 39 ppm measured at the pit, animal and human levels within each chamber, respectively, were reduced significantly to 5, 1 and 1 ppm, respectively, after the addition of zinc oxide nanoparticles into the manure. Effectiveness of the treatment was persistent in maintaining low hydrogen sulfide level up to 15 days after treatment application. Pig performance and manure nutrient properties were not adversely affected by the application of zinc oxide nanoparticles.

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Development of air purification device through application of thin-film photocatalyst

Cited by 19 publications

References 6 publications

The abatement of major pollutants in air and water by environmental catalysis

The abatement of major pollutants in air and water by environmental catalysis

Surface Treatments on Additively Manufactured Ti6Al4V Parts for the Formation of Photocatalytic Nanostructured Surfaces with Antibacterial Properties

Mixing nanoparticles with swine manure to reduce hydrogen sulfide and ammonia emissions

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