[논문]Improved photoelectric performance via fabricated heterojunction g-C3N4/TiO2/HNTs loaded photocatalysts for photodegradation of ciprofloxacin

Wu, Dongyao; Li, Jinze; Guan, Jingru; Liu, Chongyang; Zhao, Xiaoxu; Zhu, Zhi; Ma, Changchang; Huo, Pengwei; Li, Chunxiang; Yan, Yongsheng

doi:10.1016/j.jiec.2018.03.017

Improved photoelectric performance via fabricated heterojunction g-C3N4/TiO2/HNTs loaded photocatalysts for photodegradation of ciprofloxacin 원문보기

Journal of industrial and engineering chemistry : JIEC, v.64, 2018년, pp.206 - 218

Wu, Dongyao (Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University) , Li, Jinze (Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University) , Guan, Jingru (Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University) , Liu, Chongyang (Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University) , Zhao, Xiaoxu (Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University) , Zhu, Zhi (Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University) , Ma, Changchang (School of Environment, Jiangsu University) , Huo, Pengwei (Institute of Green Chemistry and Chemical Tech) , Li, Chunxiang , Yan, Yongsheng

Abstract ▼ AI-Helper

Abstract An Intercalated heterostructural g-C3N4/TiO2/HNTs supported photocatalyst was successfully prepared via sol–gel and calcination methods. The introduction of HNTs and the g-C3N4-TiO2 heterojunction effectively enhanced the charge transfer and separation efficiency of photogenerated electron–hole pairs, which endued the g-C3N4/TiO2/HNTs hybrid material with an outstanding photoelectric performance and good stability. And an obviously enhanced photocatalytic activity was exhibited by photodegrading ciprofloxacin compared with pure TiO2. Furthermore, the main active species were detected through trapping experiment and ESR spin-trap technique with DMPO, which confirmed that the O2 − and the h+ were the main active species in the photocatalytic system. Highlights A novel intercalated heterostructural g-C3N4/TiO2/HNTs supported photocatalyst was successfully prepared. The g-C3N4/TiO2/HNTs exhibited great photocatalytic activity and stability for the degradation of CIP under visible light irradiation. The g-C3N4/TiO2/HNTs possessed enhanced photoelectric performance. These enhanced performance were attributable to the transfer and separation of charges. The main active species for the photodegradation system were h+ and O2 − and a possible mechanism was presented. Graphical abstract [DISPLAY OMISSION]

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Improved photoelectric performance via fabricated heterojunction g-C3N4/TiO2/HNTs loaded photocatalysts for photodegradation of ciprofloxacin 원문보기

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