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Tetracycline and Doxycycline photocatalytic degradation by Nano α-Fe2O3/12-tungstosilicic acid prepared through forced hydrolysis and reflux condensation | ||
| Communications In Catalysis | ||
| مقاله 4، دوره 1، شماره 2، زمستان 2018، صفحه 32-53 اصل مقاله (1591 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22049/cic.2018.26341.1022 | ||
| نویسندگان | ||
Majid Saghi؛ Kazem Mahanpoor 
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| Department of Chemistry, Arak branch, Islamic Azad University, Arak, Iran | ||
| چکیده | ||
| I In the research, spherical α-Fe2O3 nanoparticles (NPs) were synthesized and supported on the surface of 12-tungstosilicic acid (12-TSA.7H2O) using forced hydrolysis and reflux condensation (FHRC) method. Photocatalytic activity of pure and supported α-Fe2O3 NPs (α-Fe2O3/2-TSA.7H2O) for Tetracycline (TC) and Doxycycline (DC) degradation was investigated using UV/H2O2 process. The products were characterized by FTIR, SEM/EDX, BET surface area and XRD. The experiments were designed considering four variables including pH, the initial concentration of pollutant, catalyst concentration and H2O2 concentration at two-levels and three central point's using full factorial experimental design. The results indicated that supporting α-Fe2O3 NPs caused to improve the filtration, recovery and photocatalytic activity of NPs.Under optimal conditions, 88.44% TC and 87.67% DC were degraded following 50 and 120 min, respectively. The results indicated that reactions follows first-order kinetic and rate coefficient for TC and DC degradation reactions equals to 0.0178 and 0.0074 min–1, respectively. | ||
| کلیدواژه ها | ||
| Tetracycline؛ Doxycycline؛ Full factorial؛ α-Fe2O3؛ α-Keggin | ||
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آمار تعداد مشاهده مقاله: 235 تعداد دریافت فایل اصل مقاله: 303 |
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