Saghi, M., Mahanpoor, K. (2018). Tetracycline and Doxycycline photocatalytic degradation by Nano α-Fe2O3/12-tungstosilicic acid prepared through forced hydrolysis and reflux condensation. Communications In Catalysis, 1(2), 32-53. doi: 10.22049/cic.2018.26341.1022
Majid Saghi; Kazem Mahanpoor. "Tetracycline and Doxycycline photocatalytic degradation by Nano α-Fe2O3/12-tungstosilicic acid prepared through forced hydrolysis and reflux condensation". Communications In Catalysis, 1, 2, 2018, 32-53. doi: 10.22049/cic.2018.26341.1022
Saghi, M., Mahanpoor, K. (2018). 'Tetracycline and Doxycycline photocatalytic degradation by Nano α-Fe2O3/12-tungstosilicic acid prepared through forced hydrolysis and reflux condensation', Communications In Catalysis, 1(2), pp. 32-53. doi: 10.22049/cic.2018.26341.1022
Saghi, M., Mahanpoor, K. Tetracycline and Doxycycline photocatalytic degradation by Nano α-Fe2O3/12-tungstosilicic acid prepared through forced hydrolysis and reflux condensation. Communications In Catalysis, 2018; 1(2): 32-53. doi: 10.22049/cic.2018.26341.1022
Tetracycline and Doxycycline photocatalytic degradation by Nano α-Fe2O3/12-tungstosilicic acid prepared through forced hydrolysis and reflux condensation
Department of Chemistry, Arak branch, Islamic Azad University, Arak, Iran
Receive Date: 16 September 2018,
Revise Date: 18 October 2018,
Accept Date: 18 October 2018
Abstract
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.
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