Heterogeneous Fenton Oxidation of Caffeine Using Zeolite-Supported Iron Nanoparticles

被引：8

作者：

Anis, Mehwish ^{[1
]}

Haydar, Sajjad ^{[1
]}

机构：

[1] UET, IEER, Lahore, Pakistan

来源：

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING | 2019年 / 44卷 / 01期

关键词：

Response surface methodology; Advanced oxidation process; Catalyst; Design Expert; Heterogeneous fenton; Nanoparticle; PERSONAL CARE PRODUCTS; WASTE-WATER TREATMENT; PHOTO-FENTON; TREATMENT PLANTS; PHARMACEUTICAL COMPOUNDS; EMERGING CONTAMINANTS; REMOVAL; ENVIRONMENT; DEGRADATION; OPTIMIZATION;

D O I：

10.1007/s13369-018-3659-3

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The current study aimed at exploring the potential of iron-embedded zeolites to serve as heterogeneous Fenton catalyst for the treatment of caffeine. Synthetic zeolites were modified through co-precipitation and subsequent deposition of iron precipitates on the zeolites. Catalyst was characterized through chemical composition, particle size and its distribution, BET specific surface area, FTIR, and XRD techniques. Batch mode studies were carried out, and process parameters including pH, contact time, and iron to hydrogen peroxide ratio (Fe+2:H2O2) were optimized. Response surface methodology was employed for this purpose using Design Expert 10.0 software. Fe+2:H2O2 ratio was found to be the most important parameter affecting the removal of caffeine. Significant interaction between pH and Fe+2:H2O2 ratio was also observed. More than 80% removal of caffeine was achieved when the pH was in the range of 5.8-7 and Fe+2:H2O2 ratio in the range of 2.5-3. Catalyst was found stable, and negligible loss of iron under experimental conditions was observed. Moreover, the catalyst could be reused for at least three successive runs of treatment without significant loss in the activity of the catalyst.

引用

页码：315 / 328

页数：14

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