The Removal Properties of NOx with the Photocatalystic (TiO<sub>2</sub>)and UV Optical Science Reactions

이관호,; 박우진,

doi:10.5762/kais.2010.11.9.3578

Cited by 3 publications

(2 citation statements)

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“…Recently, a method using titanium dioxide (TiO 2 ) has been proposed to reduce NOx concentration from air pollutions, and a number of studies have been carried out to remove NOx by applying TiO 2 on urban road structures and highway areas [3]. However, few studies analyzing the NOx reduction effect from applying TiO 2 on operating roads or highways have been carried out.…”

Section: Introductionmentioning

confidence: 99%

An Analysis on the Effectiveness of Nitrogen Oxide Reduction from Applying Titanium Dioxide on Urban Roads Using a Statistical Method

Lee

Kim

et al. 2021

Atmosphere

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The purpose of this study was to analyze the effect of titanium dioxide (TiO2) on reducing nitrogen oxide (NOx) concentrations using the statistical method of the Anderson-Darling test. To compare and analyze this effect, a spray-type form of TiO2 was applied to the asphalt pavement surface on urban roads. Data acquisition for NOx concentration was collected from a test section with TiO2 applied and a reference section without TiO2 applied. The probabilities of occurrence of the NOx concentration in the test and reference section were estimated and compared using the Anderson-Darling test. In sum, most of the NOx concentrations were probabilistically lower in the test section. The average probability of the NOx concentration in the test section in the ‘low’ range was 46.2% higher than in the reference section. In the ‘high’ and ‘moderate’ ranges, the average probability of the NOx concentration compared to that of the reference section was lower by 28.1% and 18.8%, respectively. These results revealed that the photochemical reaction from the TiO2 material applied on asphalt pavement was effective in reducing NOx.

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Section: Introductionmentioning

confidence: 99%

An Analysis on the Effectiveness of Nitrogen Oxide Reduction from Applying Titanium Dioxide on Urban Roads Using a Statistical Method

Lee

Kim

et al. 2021

Atmosphere

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“…On average, the amount of NO x and SO x emitted in Korea exceeds 1 million tons and 400,000 tons per year, respectively [3]. The nitrogen monoxide (NO) produced from the car combustion reacts with oxygen (O 2 ) to form nitrogen dioxide (NO 2 ), which is far more harmful to human beings than nitrogen monoxide [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

The Effectiveness of Liquid PUD-TiO2 Photocatalyst on Asphalt Pavement

Jang

Kim²,

Kim

et al. 2021

Materials

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Harmful nitrogen oxides (NOX) are produced by vehicles, factories, mines, and power plants. In fact, over one million tons of NOX are emitted into the atmosphere every year, making it the most prevalent air pollutant. Approximately 45% of the emitted NOX in Korea is associated with the transportation sector. In this paper, the application of a new TiO2 photocatalyst on the asphalt roads to remove combustion-produced NOX was studied. In an effort to overcome the known constructability, adhesion, cost, and dispersion problems associated with TiO2 photocatalysts, the liquid polyurethane (PUD) was added with TiO2 to form a mixture later known as liquid PUD-TiO2. Laboratory and field tests were conducted to determine the optimum amount of photocatalyst to be used and the performance of asphalt pavement coated with PUD-TiO2 in terms of indirect tensile strength, water susceptibility, and rutting resistance. Additionally, the performance of PUD-TiO2 under different humidity, wind speed, and temperature conditions was also evaluated. The results showed that the application of PUD-TiO2 photocatalyst on the asphalt pavements road reduces the NOX available on the surface of the road. The PUD-TiO2 also was found to have no effects on the performance of asphalt pavement. Meanwhile, under different weather conditions, the reaction between the photocatalyst and NOX is mainly affected by the humidity.

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Manufacturing Characteristics of Concrete Brick using Bottom Ash Generated from Combustion After Upgrading Treatment of Solid Refuse Fuel Residues

Leesangyeop¹,

Park²,

Han-Gunho³

et al. 2018

J. Korea Soc. Waste. Manag.

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The Removal Properties of NOx with the Photocatalystic (TiO₂)and UV Optical Science Reactions

Cited by 3 publications

References 1 publication

An Analysis on the Effectiveness of Nitrogen Oxide Reduction from Applying Titanium Dioxide on Urban Roads Using a Statistical Method

An Analysis on the Effectiveness of Nitrogen Oxide Reduction from Applying Titanium Dioxide on Urban Roads Using a Statistical Method

The Effectiveness of Liquid PUD-TiO2 Photocatalyst on Asphalt Pavement

Manufacturing Characteristics of Concrete Brick using Bottom Ash Generated from Combustion After Upgrading Treatment of Solid Refuse Fuel Residues

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The Removal Properties of NOx with the Photocatalystic (TiO2)and UV Optical Science Reactions

Cited by 3 publications

References 1 publication

An Analysis on the Effectiveness of Nitrogen Oxide Reduction from Applying Titanium Dioxide on Urban Roads Using a Statistical Method

An Analysis on the Effectiveness of Nitrogen Oxide Reduction from Applying Titanium Dioxide on Urban Roads Using a Statistical Method

The Effectiveness of Liquid PUD-TiO2 Photocatalyst on Asphalt Pavement

Manufacturing Characteristics of Concrete Brick using Bottom Ash Generated from Combustion After Upgrading Treatment of Solid Refuse Fuel Residues

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The Removal Properties of NOx with the Photocatalystic (TiO₂)and UV Optical Science Reactions