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    g-C3N4/TiO2 Photocatalyst and Its Performance of NO Degradation in Emulsified Asphalt

    Source: Journal of Materials in Civil Engineering:;2019:;Volume ( 031 ):;issue: 005
    Author:
    Xuejuan Cao; Xiaoyu Yang; Tao Wu; Boming Tang; Peng Guo
    DOI: 10.1061/(ASCE)MT.1943-5533.0002580
    Publisher: American Society of Civil Engineers
    Abstract: This study prepared one g-C3N4/TiO2 composite photocatalyst by calcinating a mixture of melamine and nano TiO2, and then mixed it with asphalts to photodegrade the NO produced by automobile exhaust. The melamine and TiO2 were mixed uniformly at a mass ratio of 2∶1 and calcined at 550°C for 5 h. The microstructure of the g-C3N4/TiO2 was investigated by a combination of Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The results indicate that there is no new phase formation in the composite photocatalyst, and TiO2 particles adhere to flaky g-C3N4, which effectively reduces the agglomeration of TiO2 particles. The g-C3N4/TiO2 powder was directly mixed with a neat asphalt and an emulsified asphalt separately to degrade the NO. It was found that the NO degradation efficiency of photocatalytic emulsified asphalt is better than that of photocatalytic neat asphalt.
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      g-C3N4/TiO2 Photocatalyst and Its Performance of NO Degradation in Emulsified Asphalt

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4255309
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    contributor authorXuejuan Cao; Xiaoyu Yang; Tao Wu; Boming Tang; Peng Guo
    date accessioned2019-03-10T12:19:06Z
    date available2019-03-10T12:19:06Z
    date issued2019
    identifier other%28ASCE%29MT.1943-5533.0002580.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4255309
    description abstractThis study prepared one g-C3N4/TiO2 composite photocatalyst by calcinating a mixture of melamine and nano TiO2, and then mixed it with asphalts to photodegrade the NO produced by automobile exhaust. The melamine and TiO2 were mixed uniformly at a mass ratio of 2∶1 and calcined at 550°C for 5 h. The microstructure of the g-C3N4/TiO2 was investigated by a combination of Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The results indicate that there is no new phase formation in the composite photocatalyst, and TiO2 particles adhere to flaky g-C3N4, which effectively reduces the agglomeration of TiO2 particles. The g-C3N4/TiO2 powder was directly mixed with a neat asphalt and an emulsified asphalt separately to degrade the NO. It was found that the NO degradation efficiency of photocatalytic emulsified asphalt is better than that of photocatalytic neat asphalt.
    publisherAmerican Society of Civil Engineers
    titleg-C3N4/TiO2 Photocatalyst and Its Performance of NO Degradation in Emulsified Asphalt
    typeJournal Paper
    journal volume31
    journal issue5
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0002580
    page04019031
    treeJournal of Materials in Civil Engineering:;2019:;Volume ( 031 ):;issue: 005
    contenttypeFulltext
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