Impact of Nano-TiO2 on the NO2 degradation and rheological performance of asphalt pavement

Qian, Guoping; Yu, Huanan; Gong, Xiuqing; Liu, Zhao

doi:10.1016/j.conbuildmat.2019.05.075

Cited by 64 publications

(21 citation statements)

References 20 publications

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“…Most of the applied research studies on the treatment of oil pollutants by TiO 2′ were focused on the treatment of water surface oil pollution, while the studies on the effects of photocatalytic degradation of oil pollution on road surfaces and the corresponding test methods and evaluation indexes for cement concrete or asphalt pavements are still relatively few. Besides, many researchers have found that the nanoparticles can potentially improve the rutting and cracking resistance of asphalt mixtures, which make the application of TiO 2 on the asphalt pavement to be more applicable [33][34][35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Laboratory experiment on the nano-TiO₂photocatalytic degradation effect of road surface oil pollution

Wang

Zheng

et al. 2020

Nanotechnology Reviews

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Oil leak from vehicles is one of the most common pollution types of the road. The spilled oil could be retained on the surface and spread in the air voids of the road, which results in a decrease in the friction coefficient of the road, affects driving safety, and causes damage to pavement materials over time. Photocatalytic degradation through nano-TiO2 is a safe, long-lasting, and sustainable technology among the many methods for treating oil contamination on road surfaces. In this study, the nano-TiO2 photocatalytic degradation effect of road surface oil pollution was evaluated through the lab experiment. First, a glass dish was used as a substrate to determine the basic working condition of the test; then, a test method considering the impact of different oil erosion degrees was proposed to eliminate the effect of oil erosion on asphalt pavement and leakage on cement pavement, which led to the development of a lab test method for the nano-TiO2 photocatalytic degradation effect of oil pollution on different road surfaces.

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Section: Introductionmentioning

confidence: 99%

Laboratory experiment on the nano-TiO₂photocatalytic degradation effect of road surface oil pollution

Wang

Zheng

et al. 2020

Nanotechnology Reviews

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“…The particle size analysis results shown that the minimum particle diameter is 71.0 nm, the mean particle diameter is 152.3 nm, and the median particle diameter is 139.9 nm. A scanning electron microscope (SEM) was also used to observe the nano particles and it found that only the size larger than 5 µm clumps can be observed, which indicated that the nano particles were agglomerated together during the transport and storage process, and which could affect the photocatalytic efficiency [24].…”

Section: Properties Of Nano-tiomentioning

confidence: 99%

“…Based on the properties of the photocatalytic coating, the optimum content of TiO 2 in the photocatalytic coating and the best spray content of the photocatalytic coating on the flat surface were obtained. Qian et al evaluated the effect of SBS modified asphalt with different content of nano-TiO 2 on the degradation of nitrogen and oxygen and also evaluated the effect of nano-TiO 2 on the rheological properties of asphalt pavement [24]. Wang, et al developed a novel method of TiO 2 coating on asphalt pavement and a construction method of TiO 2 modified aggregate coating photocatalytic air purification asphalt pavement [25,26].…”

Section: Introductionmentioning

confidence: 99%

The NOx Degradation Performance of Nano-TiO2 Coating for Asphalt Pavement

et al. 2020

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The NOx degradation performance of nano-TiO2 as a coating material for the road environment was evaluated in this research. The nano-TiO2 coating materials for both road surface and roadside were prepared by using anatase nano-TiO2, activated carbon powder, silane coupling agent and deionized water. The impact of varying amounts of coating material and silane coupling agent were evaluated. The road environment of NOx degradation was simulated by the photocatalytic test system designed by the research team. For the road surface coating, the photocatalytic degradation experiments of NO under different radiation intensities were carried out. The results show that the material has good photocatalytic degradation performance, and the proper amount of silane coupling agent can enhance the bonding performance of the material and asphalt mixture. For the roadside coating, sodium dodecylbenzene sulfonate was selected as the surfactant to carry out the photocatalytic degradation experiment of NO2 with different dosages of surfactant. The results showed that when the mass ratio of nano-TiO2 and surfactant was about 1:2, the catalytic degradation effect of the material was the best.

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“…With the continuous development of transportation, the highway environmental problems brought by the operation of transportation infrastructure cannot be ignored [1,2]. For example, the highway surface runoff, which is formed after rainfall, will have a negative impact on the receiving water environment as a carrier of pollutants deposited on road surfaces.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Purification Effect of Biochemical Pool Model for Treatment of Pavement Runoff by Aquatic Plants

Wang

Cao

et al. 2020

Sustainability

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The road runoff after rainfall carries a lot of pollutants that could cause great harm to the water environment. A biochemical pool can be used as a treatment for the road runoff. In order to further improve the efficiency of road runoff treatment by biochemical pool and to evaluate the purification effect of the aquatic plants, two aquatic plants of Iris pseudacorus and Myriophyllum verticillatum were chosen in this research. The effect of different planting densities on the treatment of runoff pollutants and the planting mode by different aquatic plants were studied. The results show that both plants have the ability to remove the pollutants like chemical oxygen demand (COD), Zn, Cu, oil, and suspended solids (SS), and the ability is increased with the increase of planting density. The Iris pseudacorus is better than Myriophyllum verticillatum on the removal of Zn, while Myriophyllum verticillatum does better on the removal of Cu, oil, and SS. Combined planting mode can effectively improve the purification effect of COD and petroleum.

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Impact of Nano-TiO2 on the NO2 degradation and rheological performance of asphalt pavement

Cited by 64 publications

References 20 publications

Laboratory experiment on the nano-TiO₂photocatalytic degradation effect of road surface oil pollution

Laboratory experiment on the nano-TiO₂photocatalytic degradation effect of road surface oil pollution

The NOx Degradation Performance of Nano-TiO2 Coating for Asphalt Pavement

Experimental Study on Purification Effect of Biochemical Pool Model for Treatment of Pavement Runoff by Aquatic Plants

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Impact of Nano-TiO2 on the NO2 degradation and rheological performance of asphalt pavement

Cited by 64 publications

References 20 publications

Laboratory experiment on the nano-TiO2photocatalytic degradation effect of road surface oil pollution

Laboratory experiment on the nano-TiO2photocatalytic degradation effect of road surface oil pollution

The NOx Degradation Performance of Nano-TiO2 Coating for Asphalt Pavement

Experimental Study on Purification Effect of Biochemical Pool Model for Treatment of Pavement Runoff by Aquatic Plants

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Laboratory experiment on the nano-TiO₂photocatalytic degradation effect of road surface oil pollution

Laboratory experiment on the nano-TiO₂photocatalytic degradation effect of road surface oil pollution