Open AccessDegradation of ketoprofen using iron-supported ZSM-5 catalyst via heterogeneous Fenton oxidation
Author(s) -
I P I Azusano,
Alvin R. Caparanga,
B H Chen
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/612/1/012048
Subject(s) - ketoprofen , catalysis , leaching (pedology) , chemistry , degradation (telecommunications) , zeolite , stoichiometry , mineralization (soil science) , nuclear chemistry , heterogeneous catalysis , chromatography , organic chemistry , nitrogen , telecommunications , environmental science , computer science , soil science , soil water
Heterogeneous Fenton oxidation provides an alternative method of degrading ketoprofen from wastewater. The purpose of this study is investigate the degradation of ketoprofen using iron-supported ZSM5 zeolite catalyst. Iron was impregnated into ZSM5 via the impregnation method, with loading variation of 1wt% and 3.5wt% Fe/ZSM5. Characterization of the catalyst was performed using XRD, SEM, ICP-OES, TGA, BET and TPD. Batch degradation reaction were performed with a working volume of 100 mL ketoprofen solution, mechanically stirred at 900 rpm. Amount of H 2 O 2 used was equivalent to 11 times (in excess) the required stoichiometric amount for ketoprofen mineralization. Catalyst loading was varied between 1 g/L and 4 g/L. HPLC was utilized in determining ketoprofen concentration in the solution during the degradation reaction. Ketoprofen degradation of 100% was observed after 20 minutes using catalyst with 3.5% weight at 4 g/L loading. Iron leaching was also measured using ICP-OES to compare the amount of iron leached between heterogeneous and homogenous Fenton reaction. Percentage of iron leached showed 8.93% and 57.09% for heterogeneous and homogenous Fenton reaction, respectively. The study showed promising results in degrading ketoprofen using an iron-supported ZSM5 via the heterogeneous Fenton reaction with lower iron leaching percentage compared to homogenous Fenton reaction.