화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.76, 318-332, August, 2019
DOI10.1016/j.jiec.2019.03.056  Export Citation
Fabrication of heterostructured vanadium modified g-C3N4/TiO2 hybrid photocatalyst for improved photocatalytic performance under visible light exposure and antibacterial activities
Shanmugam Vignesh, Sanjeevamuthu Suganthi1, Jeyaperumal Kalyana Sundar†, and Vairamuthu Raj1
  • Materials Science Research Laboratory, Department of Physics, Periyar University, Salem - 636 011, Tamil Nadu, India
  • 1Advanced Materials Research Laboratory, Department of Chemistry, Periyar University, Salem - 636 011, Tamil Nadu, India
E-mail:
Improving visible-light active photocatalytic performance of the heterostructured g-C3N4-V-TiO2 (g- C3N4-Vanadium-TiO2) hybrid catalyst has been synthesized via facile calcination and ultrasonic dispersion facilitated hydrothermal techniques were considered. The phase composition, morphology, surface area, chemical structure as well as optical properties were systematically characterized. HR-TEM images were exposed good crystallinity of g-C3N4-10% V-TiO2 nanocomposite (size~35.40 nm) with VTiO2 porous discrete on g-C3N4 nanosheets. Too occurred in high pore volume and large surface area (91.5 m2 g 1) of g-C3N4-10% V-TiO2 hybrid catalyst compared than pristine g-C3N4. The 10% g-C3N4-V-TiO2 photocatalyst shows substantial photocatalytic activity, 5.7 and 4.8 times higher that pristine g-C3N4 nanosheets and TiO2 under visible light with the degradation efficiency over 99.5% for 60 min. Besides, the recycling test specified that the g-C3N4-10% V-TiO2 photocatalyst had admirable stability up to 5 sequential cycles. The trapping assessments which authorize that OH radicals and h+ plays an active role in the degradation process and the separation of photoinduced charges transversely the heterostructure boundary reserved electron-hole recombination they were good agree with PL studies. Moreover, g-C3N4-10% V-TiO2 composite catalyst show high catalytic antibacterial activity against Escherichia coli (G ) and the Staphylococcus aureus (G+) bacteria.
Keywords:g-C3N4-V-TiO2;Heterostructured photocatalysts;Wastewater treatment;Visible light;Higher surface area;Charge separation
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