Synthesis and characterization of CdS/BiPO{sub 4} heterojunction photocatalyst

Journal Article · Mon Jun 15 04:00:00 EDT 2015 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2015.02.024· OSTI ID:22475809

Chen, Daimei; Kuang, Zheng; Zhu, Qian; Du, Yue; Zhu, Honglei

Highlights: • A CdS/BiPO{sub 4} heterojunction was prepared by the solvothermal method. • The CdS/BiPO{sub 4} composite has the higher photocatalytic activity than the individual ones. • The optimal mass ratio of CdS to BiPO{sub 4} was 0.5. • The heterojunction structure of CdS/BiPO{sub 4} induces an effective electron–hole separation. - Abstract: A series of CdS/BiPO{sub 4} heterojunction photocatalysts with the visible-light response were synthesized by the solvothermal method. The resulting products were characterized by X-ray diffraction, Transmission electron microscopy, X-ray photoelectron spectroscopy, and UV–vis diffuse reflection spectroscopy. CdS nanoparticles with the size at range of 5–7 nm were immobilized on the surface of BiPO{sub 4} nanorods. The CdS/BiPO{sub 4} composite exhibited much higher photodegradation rate of methylene blue under visible light irradation compared to the pure CdS and BiPO{sub 4}. The optimal mass ratio of CdS to BiPO{sub 4} was 0.5, the photodegradation rate of which is 2.1 times higher than that of CdS. The enhancement of photocatalytic activity is attributed to the heterojunction structure of CdS/BiPO{sub 4} composite which induced the effective electron–hole separation between CdS and BiPO{sub 4}.

• OSTI ID: 22475809
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 66; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH PHOSPHATES
CADMIUM SULFIDES
ELECTRONS
HETEROJUNCTIONS
MASS
METHYLENE BLUE
NANOPARTICLES
NANOSTRUCTURES
PHOTOCATALYSIS
REFLECTION
SURFACES
SYNTHESIS
TRANSMISSION ELECTRON MICROSCOPY
VISIBLE RADIATION
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY