| Preparation and photocatalytic activity of a novel BiOCl/g‑C3N4 thin film prepared via spin coating |
Wei‑Qin Cai1, De‑Fang Zhang1, Feng‑Jun Zhang1,2
, Won‑Chun Oh3
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1y Laboratory of Functional Molecule Design and Interface Process, Anhui Jianzhu University, Hefei 230601, Anhui, People’s Republic of China
2Anhui Key Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230022, Anhui, People’s Republic of China
3Department of Advanced Materials Science and Engineering, Hanseo University, Seosan 31962, South Korea |
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Received: December 9, 2019; Revised: December 30, 2019 Accepted: January 14, 2020. Published online: March 31, 2020. |
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| ABSTRACT |
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Novel BiOCl/g-C3N4 thin film photocatalysts were synthesized via a simple two-step spin coating method. The prepared photocatalysts were characterized by X-ray diffraction, scanning electron microscopy, and ultraviolet–visible spectroscopy. The photocatalytic activity of the thin films for the degradation of rhodamine B under visible light (λ ≥ 400 nm) was investigated. The results showed that the BiOCl/g-C3N4 thin film photocatalysts exhibited significantly improved visible light absorption compared to the pure BiOCl thin film. The BiOCl/g-C3N4 film showed a rhodamine B degradation efficiency of 81.0% under visible light, which is 23.8 times higher than that of the pure BiOCl thin film. This excellent photocatalytic activity of the BiOCl/g-C3N4 film can be attributed to its efficient electron–hole separation due to the presence of g-C3N4. |
| Key words:
BiOCl · g-C3N4 · Thin film · Photocatalytic degradation |
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