Amoxicillin Oxidative Degradation Synthesized by Nano Zero Valent Iron

Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd

卷:23

M Rafiee¹  AR Yazdanbakhsh¹  H Kamali²  H Daraei³ 

[1] Department of Environmental Health Engineering;

[2] School of Medicine;

[3] Students research office;

关键词: Amoxicillin;    Nanoparticles;    NZVI;    Stabilize;    Synthesize;   

DOI  :  

来源: DOAJ

【 摘 要 】

Introduction: Amoxicillin is one of the most important groups of pharmaceuticals that benefits humans and animals. However, antibiotics excertion in wastewaters and environment have emerged as a serious risk to the biotic environment, and their toxic effects can harm the organisms. Iron-based metallic nanoparticles have received special attention in regard with remediation of groundwater contaminants. In the typical nZVI-based bimetallic particle system, Fe acts as the reducing agent. Thus, the present study aimed to evaluate the synthesis and characteristics of nZVI in regard with degrading AMX.Methods: In this study, nZVI nanoparticles were synthesized using the liquid-phase reduction method by EDTA as a stabilizer material. Structure and properties of nanoparticles were characterized by BET, SEM, XRD and EDX analysis. A multi-variate analysis was applied using a response surface methodology (RSM) in order to develop a quadratic model as a functional relationship between AMX removal efficiency and independent variables ( initial pH values, dosage of nZVI, contact time and amoxicillin concentration). The four independent variables of solution pH (2–10), AMX concentration (5-45mg/l), contact time (5-85 min) and nanoparticles dose (0.25 – 1.25 g) were transformed to the coded values.Results: The study results demonstrated that more than 69 % of AMX was removed by nZVI. The optimal AMX removal conditions using nZVI were found as 1.25 g of nZVI, pH 4, contact time of 80 min and concentration of 30 mg/l.Conclusions: The ability of nZVI in degradation of AMX revealed that these materials can serve as a potential nano material with respect to the environmental remediation.

【 授权许可】

Unknown