Fabrication of g-C3N4-reinforced CdS nanosphere-decorated TiO2 nanotablet composite material for photocatalytic hydrogen production and dye-sensitized solar cell application
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Herein, a glib method to produce g-C3N4-reinforced CdS-modified anatase TiO2 is proposed. The CdS spheres broaden the visible region absorption spectrum of TiO2 and improve the charge-transfer me-chanism by reinforcing it with g-C3N4. Thus, we aim to improve the photocatalytic efficiency using ternary photocatalyst. Powder X-ray diffraction, scanning electron microscopy images are accomplished to char-acterize the components of a ternary composite. Ternary semiconductors possess a better photocatalytic activity in hydrogen production (233 mu mol g-12 h-1) than other synthesized semiconductors. DSSCs are fabricated using the prepared electrodes as photoanodes and investigated using current density-voltage, the EQE, and electrochemical impedance spectroscopy. The fabricated DSSC shows the highest overall conversion efficiency of 4.16%, open-circuit voltage of 0.75 V, and short-circuit current density of 10.17 mA/ cm2. The heterojunction catalysts formed by semiconductors with matched bandgaps have enhanced photocatalytic ability and better solar cell performance. (c) 2022 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Dye -sensitized solar cell, Hydrogen production, Photocatalysis, TiO 2, CdS, g-C 3 N 4, Type II, Visible-Light, Carbon Nitride, Quantum Dots, Nanosheets, Graphene, Evolution, G-C3n4, Water, Nanocomposite, Degradation
Kaynak
Journal of Alloys and Compounds
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
936
