Journal of Water and Wastewater; Ab va Fazilab (in persian)

Journal of Water and Wastewater; Ab va Fazilab (in persian)

Investigation of Photocatalytic Degradation of the Antibiotic Florfenicol from Shrimp Culture Ponds Effluent Using Cu-doped ZnO

Document Type : Research Paper

Authors
Elaheh Ilkhas 1
Laleh Roomiani 2
Ali Akbar Babaei 3
Reza Jalilzadeh Yengejeh 4
Katayon Varshosaz 5
1 PhD. Student, Dept. of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
2 Assoc. Prof., Dept. of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
3 Prof., Dept. of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
4 Assoc. Prof., Dept. of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
5 Assist. Prof., Dept. of Environmental Management-HSE, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
10.22093/wwj.2025.517613.3485
Abstract
The purpose of this experimental study was to impact the influencing parameters on the elimination of photocatalytic antibiotic florfenicol from shrimp ponds using Cu-doped ZnO. The research variables included the initial pH (3, 5, 7, 9, 11), the primary concentration of florfenicol (5, 10, 15, 20 mg/L), the photocatalyst dose (0.075, 0.15, 0.3, 0.6 g/L), and reaction time (0, 15, 30, 45, 60, 90 min). Kinetic and isotherm of absorption were performed. Nanoparticle identification tests were reviewed using SEM, XRD, XPS, UV-VIS, and PL spectrum and nano-photocatalyst in optimal conditions. The results showed that copper doping effectively confirmed the optimized dioxide strip structure and SEM images, with pure nanoparticles and Cu-doped ZnO having smooth surfaces. The elements were confirmed by XRD analysis and the chemical composition of nanoparticles via XPS. The results showed that with the increase in pH and the initial concentration of florfenicol, the elimination efficiency decreased. Within 120 minutes, the performance of the photocatalytic process increased (75.2%) and then decreased by increasing the dose of nanoparticles to 0.3 g/L. The absorption kinetics followed the second-degree quasi -high -grade isotherm model. This study could be a reference for practical application of photocatalytic analysis of antibiotics.
Keywords
Florfenicol
Photocatalist
Cu-doped ZnO
Shrimp Ponds Waste
Aquaculture

Subjects

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Journal of Water and Wastewater; Ab va Fazilab (in persian)
Volume 36, Issue 1 - Serial Number 156
March and April 2025
Pages 1-23