کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1269299 | 1496871 | 2016 | 10 صفحه PDF | دانلود رایگان |
• Novel production of PMC nanorods by corona discharge plasma technique.
• Characterization of the catalyst by XRD, FT-IR, SEM, EDX, XPS and BET.
• Evaluating the performance of PMCs in heterogeneous sono-Fenton-like of PhP.
• Examining the radical scavenger’s effects on the removal efficiency of PhP.
The plasma-modified clinoptilolite (PMC) nanorods were prepared from natural clinoptilolite (NC) utilizing environmentally-friendly corona discharge plasma. The PMC and NC were characterized by XRD, FT-IR, SEM, EDX, XPS and BET, which confirmed the nanocatalyst formation. The catalytic performance of the PMC in the heterogeneous sono-Fenton-like process was greater than the NC for treatment of phenazopyridine (PhP). The desired amounts were obtained for experimental parameters including initial pH (5), PMC dosage (2 g/L), K2S2O8 concentration (2 mmol/L), ultrasonic power (300 W) and PhP concentration (10 mg/L). Reactive oxygen species scavengers decreased the removal efficiency of the PhP. The treatment process followed pseudo-first order kinetic and seven degradation intermediates were identified by the GC–MS technique.
Preparation of PMC by corona discharge plasma and its application in the heterogeneous sono-Fenton-like process.Figure optionsDownload as PowerPoint slide
Journal: Ultrasonics Sonochemistry - Volume 33, November 2016, Pages 37–46