English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Abstract Titanium dioxide (TiO 2 ) has been employed to degrade hazardous materials since its photocatalytic ability was discovered. In recent years, attempts have been made to apply TiO 2 onto road surfaces to degrade the harmful compounds (such as NO and NO 2 ) from vehicle emissions. As a photocatalyst, the NO X degradation efficiency of TiO 2 largely depends on its surface area exposed to sunlight. However, the effective coating methods to enlarge the contact area between the coated TiO 2 and sunlight have not been well studied, especially for asphalt pavements. To fill this gap, this study aims to investigate the photocatalytic performance of three TiO 2 coating methods for asphalt pavements, including the conventional water-solution-based TiO 2 (WT) coating, and the innovative glass-bead-based TiO 2 (GT) coating and porous TiO 2 (PT) coating. A custom-designed environmental test setup was used to determine the NO X degradation efficiency of the specimens with TiO 2 coating, and the durabilities of the coating materials were characterized by measuring their NOx degradation efficiency subjected to different numbers of lab-simulated tire abrasion. It was found that the PT and GT methods provided not only better NO degradation efficiency but also improved durability compared to the conventional WT method.

Study on air-purifying performance of asphalt mixture specimens coated with titanium dioxide using different methods