Field study of NOx degradation by a mineral-based air purifying paint

Yu, Qingliang; Hendrix, Yuri; Lorencik, S.; Brouwers, Hjh Jos

doi:10.1016/j.buildenv.2018.06.014

Cited by 39 publications

(13 citation statements)

References 47 publications

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“…In the case of the gaseous medium, a better degradation result of 0.80 μmol was obtained, which translates into 15.95%, whereas the obtained degradation for 15TEOS-5TiO 2 substrate, shown in Figure 4(b), was 0.63 μmol, which is equivalent to 10.56%. According to the reports [16,17], the NO x gas degradation phenomena are mainly due to the presence of TiO 2 in our samples.…”

Section: Resultssupporting

confidence: 56%

SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye

Gallegos-Florez

Ale²,

Idme

et al. 2020

International Journal of Photoenergy

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In this work, a SiO2-TiO2 coating, composed of different numbers of TiO2 and SiO2 layers, was fabricated by a spray-coating technique. The films were deposited onto ignimbrite rock and divided into two groups according to the number of SiO2 layers applied, 10 and 15 layers of SiO2 and 5 layers of TiO2 for each group. The morphology and chemical composition of the synthesized samples were characterized by field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectrometer (EDS), which reveal the successful SiO2-TiO2 coating on ignimbrite. The photocatalytic activities of samples obtained were evaluated toward the decomposition of 3 ppm of methyl orange (MO). Finally, NOx gas degradation was studied. The obtained results evidenced that the SiO2 and TiO2 coating improved the photocatalytic activity of ignimbrite.

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Section: Resultssupporting

confidence: 56%

SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye

Gallegos-Florez

Ale²,

Idme

et al. 2020

International Journal of Photoenergy

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“…Burning of hydrogen in the combustion pathway can produce Nitrogen Oxides (NO x ), which have something in common between hydrogen and fossil fuel when burned at high temperatures [25][26][27]. NO x is a harmful air pollutant that can be formed in all fuel-air mixed in high flames (above 1300 • C); less than 750 • C no NO x is formed [26,28]. This may pose a risk to the future of hydrogen energy as a combustion fuel.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Energy Demand Growth Prediction and Assessment (2021–2050) Using a System Thinking and System Dynamics Approach

et al. 2022

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Adoption of hydrogen energy as an alternative to fossil fuels could be a major step towards decarbonising and fulfilling the needs of the energy sector. Hydrogen can be an ideal alternative for many fields compared with other alternatives. However, there are many potential environmental challenges that are not limited to production and distribution systems, but they also focus on how hydrogen is used through fuel cells and combustion pathways. The use of hydrogen has received little attention in research and policy, which may explain the widely claimed belief that nothing but water is released as a by-product when hydrogen energy is used. We adopt systems thinking and system dynamics approaches to construct a conceptual model for hydrogen energy, with a special focus on the pathways of hydrogen use, to assess the potential unintended consequences, and possible interventions; to highlight the possible growth of hydrogen energy by 2050. The results indicate that the combustion pathway may increase the risk of the adoption of hydrogen as a combustion fuel, as it produces NOx, which is a key air pollutant that causes environmental deterioration, which may limit the application of a combustion pathway if no intervention is made. The results indicate that the potential range of global hydrogen demand is rising, ranging from 73 to 158 Mt in 2030, 73 to 300 Mt in 2040, and 73 to 568 Mt in 2050, depending on the scenario presented.

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“…Both self-cleaning and de-polluting properties of photocatalytic construction materials have been evaluated in a number of field demonstrations. The effective removal of NOx from urban air was demonstrated using a cement-based photocatalytic coating [22], a mineral-based paint [48], and paving materials [49,50]. However, other studies found a significantly weaker effect [51,52].…”

Section: Introductionmentioning

confidence: 99%

Self-cleaning and de-pollution efficacies of photocatalytic architectural membranes

Tang

Rosseler

Chen

et al. 2021

Applied Catalysis B: Environmental

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Field study of NOx degradation by a mineral-based air purifying paint

Cited by 39 publications

References 47 publications

SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye

SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye

Hydrogen Energy Demand Growth Prediction and Assessment (2021–2050) Using a System Thinking and System Dynamics Approach

Self-cleaning and de-pollution efficacies of photocatalytic architectural membranes

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Field study of NOx degradation by a mineral-based air purifying paint

Cited by 39 publications

References 47 publications

SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye

SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye

Hydrogen Energy Demand Growth Prediction and Assessment (2021–2050) Using a System Thinking and System Dynamics Approach

Self-cleaning and de-pollution efficacies of photocatalytic architectural membranes

Contact Info

Product

Resources

About

SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye

SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye