Journal
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
Volume 123, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2020.105558
Keywords
ZnO/CdS photocatalyst; Reactive red (RR141) dye; Antibiotics; Solar light
Categories
Funding
- Materials Chemistry Research Center (MCRC)
- PERCH-CIC
- Science Achievement Scholarship of Thailand (SAST)
- MCRC
- Research and Academic Affairs Promotion Fund (RAAPF), Faculty of Science, Khon kaen University
Ask authors/readers for more resources
In this study, a ZnO/CdS nanocomposite was successfully synthesized with high efficiency in degrading reactive red 141 azo dye and ofloxacin antibiotic. The composite showed great potential for environmental protection.
Fabrication of ZnO/CdS nanocomposite with addition of sodium dodecyl sulphate (SDS) has been demonstrated. The ZnO photocatalyst was synthesized first by precipitation route and then the CdS photocatalyst was decorated on the surface of the ZnO via a hydrothermal technique. The PL intensity of the ZnO/CdS nanocomposite was lower than that obtained from ZnO. This indicates lower electron-hole recombination rate implying the improvement of photoactivity. The composite showed efficiency of 80% and 73% toward photodegradation of reactive red 141 (RR141) azo dye and ofloxacin (OFL) antibiotic, respectively. This is attributed to its high specific surface area together with suppression of charge carrier recombination. The efficiency of OFL degradation also reached 90% under solar light. The structural stability of the photocatalyst after three runs has been confirmed. The photogenerated hole played a crucial role in photodegradation of OFL antibiotic. The prepared ZnO/CdS photocatalyst shows a promising potential for environmental protection.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available