High-efficiency ternary CeO2/WO3/AC photocatalyst supported by biomass waste-derived activated carbon for efficient doxycycline photodegradation: Optimization of synthesis conditions and operational parameters

•Innovative CeO2/WO3/AC photocatalyst for DOX degradation is synthesized.•Optimization of biomass-derived AC production via RSM-CCD is investigated.•Maximum DOX degradation is found to be 97.23% under optimal condition.•Catalyst dosage, initial DOX concentration, time, and pH are optimized using CCD...

Full description

Saved in:
Bibliographic Details
Published in:Materials research bulletin 2024-10, Vol.178, p.112874, Article 112874
Main Authors: Rasouli, Jamal, Zandifar, Ali, Rasouli, Kamal, Sabbaghi, Samad, Esmaeilzadeh, Feridun, Shah, Mumtaj, Ansari, Khursheed B.
Format: Article
Language:English
Subjects:
Activated carbon
Antibiotic degradation
CeO2/WO3/AC ternary photocatalyst
Doxycycline
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•Innovative CeO2/WO3/AC photocatalyst for DOX degradation is synthesized.•Optimization of biomass-derived AC production via RSM-CCD is investigated.•Maximum DOX degradation is found to be 97.23% under optimal condition.•Catalyst dosage, initial DOX concentration, time, and pH are optimized using CCD.•h+ and O2− radicals contribute in DOX mineralization. Herein, a stable and reusable photocatalyst based on activated carbon (AC) with varying CeO2/WO3 loadings is synthesized and optimized using Central Composite Design (CCD) with the intention of Doxycycline (DOX) degrading as an organic pollutant. Prepared optimum photocatalyst have been characterized through XRD, BET, FE-SEM, EDS-Mapping, TEM, FT-IR, and UV–Vis band gap analyses. Additionally, the effect of operational parameters including catalyst dosage (0.2–1.4 g.L−1), DOX concentration (10–50 ppm), irradiation time (20–140 min), and pH (2–10) on DOX degradation is investigated by CCD in order to highly-efficient DOX degradation. The best working condition shows an experimental degradation efficiency of 97.23%. Moreover, selected CeO2/WO3/AC photocatalyst remove 83.11% of COD from DOX solution. The h+ and •O2− radicals are found to be essential for the destruction of the DOX due to heir strong and nonselective oxidation characteristics. Furthermore, the stability of the selected photocatalyst observed after undergoing five degradation cycles. [Display omitted]
ISSN:0025-5408
1873-4227
DOI:10.1016/j.materresbull.2024.112874