TY - JOUR
T1 - Silver nanoparticles decorated zinc oxide nanorods supported catalyst for photocatalytic degradation of paracetamol
AU - Al-Gharibi, Maryam Awadh
AU - Kyaw, Htet Htet
AU - Al-Sabahi, Jamal Nasser
AU - Zar Myint, Myo Tay
AU - Al-Sharji, Zahara Abdallah
AU - Al-Abri, Mohammed Zahir
N1 - Funding Information:
The authors would like to thank the Nanotechnology Research Center, Sultan Qaboos University , Oman for the partial financial support. It is also extended to the Department of Physics, College of Science and the Central instrumentation laboratory, College of Agricultural and Marine Sciences, College of medicine for their technical support. The authors would like to thank Oman Telecommunication Company (Omantel) and Sultan Qaboos University for their financial support under grant numbers EG/SQU-OT/19/02 and IG/DVC/NRC/19/01 .
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/11/1
Y1 - 2021/11/1
N2 - Visible light absorption enhanced silver nanoparticles (Ag NPs) decorated zinc oxide nanorods (ZnO NRs) were synthesized using microwave-assisted growth method and utilized as supported catalysts in degradation of pharmaceutical compound. The optimal concentration of silver nitrate precursor and annealing temperature for synthesized ZnO–Ag catalysts were investigated. Different concentrations (5–20 ppm) of paracetamol were used as test contaminant in photocatalytic degradation process. The highest photocatalytic degradation (92%) of 5 ppm paracetamol was achieved for ZnO–Ag in comparison to (54%) degradation for pristine ZnO after 4 h visible light irradiation. The stability of ZnO–Ag catalyst was also investigated. The degradation performance decreased only 2% for ZnO–Ag and 24% for pristine ZnO using 5 ppm paracetamol after four repeated cycles showing high ZnO–Ag stability. Enhanced photocatalytic activity of ZnO–Ag catalyst was due to efficient charge separation as well as visible light absorption and reduced recombination of electron and hole.
AB - Visible light absorption enhanced silver nanoparticles (Ag NPs) decorated zinc oxide nanorods (ZnO NRs) were synthesized using microwave-assisted growth method and utilized as supported catalysts in degradation of pharmaceutical compound. The optimal concentration of silver nitrate precursor and annealing temperature for synthesized ZnO–Ag catalysts were investigated. Different concentrations (5–20 ppm) of paracetamol were used as test contaminant in photocatalytic degradation process. The highest photocatalytic degradation (92%) of 5 ppm paracetamol was achieved for ZnO–Ag in comparison to (54%) degradation for pristine ZnO after 4 h visible light irradiation. The stability of ZnO–Ag catalyst was also investigated. The degradation performance decreased only 2% for ZnO–Ag and 24% for pristine ZnO using 5 ppm paracetamol after four repeated cycles showing high ZnO–Ag stability. Enhanced photocatalytic activity of ZnO–Ag catalyst was due to efficient charge separation as well as visible light absorption and reduced recombination of electron and hole.
KW - Paracetamol
KW - Pharmaceutical waste
KW - Photocatalysis
KW - Silver nanoparticle
KW - Zinc oxide nanorod
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U2 - 10.1016/j.mssp.2021.105994
DO - 10.1016/j.mssp.2021.105994
M3 - Article
AN - SCOPUS:85107931593
SN - 1369-8001
VL - 134
JO - Materials Science in Semiconductor Processing
JF - Materials Science in Semiconductor Processing
M1 - 105994
ER -