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g-C3N4/TiO2 Composite Film in the Fabrication of a Photocatalytic Air-Purifying Pavements
Huang, Yu1,2,3; Zhang, Jing1; Wang, Zhenyu1; Liu, Yan1; Wang, Pengge1; Cao, Jun-ji1,2,3; Ho, Wingkei4
Corresponding AuthorHuang, Yu(huangyu@ieecas.cn) ; Ho, Wingkei(keithho@eduhk.hk)
2020-05-27
Source PublicationSOLAR RRL
ISSN2367-198X
Pages9
AbstractThe fabrication of a photocatalytic air-purifying pavement with a facile loading route, long depolluting period, and excellent deNO(x) activity under weak solar irradiation is essential for ambient air purification. Herein, a promising methodology is developed relying on the exploitation of a graphitic carbon nitride/TiO2 (g-C3N4/TiO2) composite hydrosol at room temperature. The TiO2 hydrosol can act as a source of photocatalyst and dispersant for g-C3N4 during loading. The photoinduced hydrophilicity, adhesive force, and regeneration tests in the laboratory show the long-term deNO(x) application potential of g-C3N4/TiO2 coatings. Field studies indicate that the NO removal rate is 70.7% of g-C3N4/TiO2-coated pavement in the morning (07:00-10:00) and afternoon (17:00-19:00), at which times solar radiation is weakest. The deNO(x) efficiency is influenced by solar irradiation and traffic volume. The latter exerts a more significant influence on deNO(x) efficiency than the former. A desirable route in fabricating a photocatalytic air-purifying pavement is provided and offers a promising photocatalyst suitable for outdoor environmental remediation.
Keywordair-purifying pavements ambient NOx abatement g-C3N4 TiO2 composite hydrosols weak solar irradiation
DOI10.1002/solr.202000170
WOS KeywordSURFACE HYDROXYL-GROUPS ; VISIBLE-LIGHT ; NOX ; ABATEMENT ; REMOVAL ; TITANIA ; DECOMPOSITION ; DEGRADATION ; G-C3N4-TIO2 ; OXIDATION
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23010300] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23010000] ; National Key Research and Development Program of China[2016YFA0203000] ; State Key Lab of Loess and Quaternary Geology[SKLLQGPY1605] ; National Science Foundation of China[41401567] ; National Science Foundation of China[41573138] ; key Project of International Cooperation of the Chinese Academy of Sciences[GJHZ1543] ; General Research Fund-Research Grant Council of Hong Kong Government[18301117] ; Dean Research Fund 19-20 of Hong Kong[PolyU 152083/14E] ; Research Grants Council of Hong Kong[PolyU 152083/14E] ; Hundred Talent Program of the Chinese Academy of Sciences ; EdUHK of Hong Kong[PolyU 152083/14E]
WOS Research AreaEnergy & Fuels ; Materials Science
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences, China ; National Key Research and Development Program of China ; State Key Lab of Loess and Quaternary Geology ; National Science Foundation of China ; key Project of International Cooperation of the Chinese Academy of Sciences ; General Research Fund-Research Grant Council of Hong Kong Government ; Dean Research Fund 19-20 of Hong Kong ; Research Grants Council of Hong Kong ; Hundred Talent Program of the Chinese Academy of Sciences ; EdUHK of Hong Kong
WOS SubjectEnergy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000535695700001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/14804
Collection粉尘与环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorHuang, Yu; Ho, Wingkei
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem Phys, Xian 710061, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China
4.Educ Univ Hong Kong, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Huang, Yu,Zhang, Jing,Wang, Zhenyu,et al. g-C3N4/TiO2 Composite Film in the Fabrication of a Photocatalytic Air-Purifying Pavements[J]. SOLAR RRL,2020:9.
APA Huang, Yu.,Zhang, Jing.,Wang, Zhenyu.,Liu, Yan.,Wang, Pengge.,...&Ho, Wingkei.(2020).g-C3N4/TiO2 Composite Film in the Fabrication of a Photocatalytic Air-Purifying Pavements.SOLAR RRL,9.
MLA Huang, Yu,et al."g-C3N4/TiO2 Composite Film in the Fabrication of a Photocatalytic Air-Purifying Pavements".SOLAR RRL (2020):9.
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