1. Synthesis of pumice-TiO2 nanoflakes for sonocatalytic degradation of famotidine
- Author
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Tannaz Sadeghi Rad, Alireza Khataee, Sema Akay, Dimitrios Kalderis, Berkant Kayan, Sabire Yazıcı Fen Edebiyat Fakültesi, Khataee, Alireza -- 0000-0002-4673-0223, Sadeghi Rad, Tannaz -- 0000-0002-5609-8751, and [Rad, Tannaz Sadeghi -- Khataee, Alireza] Univ Tabriz, Fac Chem, Dept Appl Chem, Res Lab Adv Water & Wastewater Treatment Proc, Tabriz 5166616471, Iran -- [Khataee, Alireza] Near East Univ, Fac Engn, Dept Mat Sci & Nanotechnol Engn, Mersin 10, TR-99138 Nicosia, North Cyprus, Turkey -- [Kayan, Berkant -- Akay, Sema] Aksaray Univ, Art & Sci Fac, Dept Chem, TR-68100 Aksaray, Turkey -- [Kalderis, Dimitrios] Technol & Educ Inst Crete, Sch Appl Sci, Dept Environm & Nat Resources Engn, Khania 73100, Crete, Greece
- Subjects
Renewable Energy, Sustainability and the Environment ,Chemistry ,Strategy and Management ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Industrial and Manufacturing Engineering ,0104 chemical sciences ,Catalysis ,Sonochemistry ,Famotidine ,Ultrasonic irradiation ,Pumice ,Pharmaceutical ,medicine ,Pumice-TiO2 ,Degradation (geology) ,Sonocatalytic Degradation ,0210 nano-technology ,General Environmental Science ,medicine.drug ,Nuclear chemistry - Abstract
WOS: 000448098000077, Pumice-TiO2 was synthesized through simple sol-gel method. The successful synthesis of the catalyst was verified by SEM, EDS, XRF, FT-IR and BET techniques. Then, a sonocatalytic process was performed to degrade famotidine in the presence of the synthesized catalyst and under ultrasonic irradiation. The removal efficiency of the sonocatalytic process with pumice TiO2, TiO2, pumice and sonolysis within 70 min was 71.1%, 33.9%, 31.1% and 8.9%, respectively. The main operational parameters which were examined in this study were catalyst dosage, pH, famotidine concentration and ultrasonic power which were optimized as 1.5 g/L, 5, 20 mg/L and 150 W, respectively. Moreover, the addition of radical scavengers (EDTA, Na2SO4 and 1, 4 benzoquinone) and enhancers (H2O2 and K2S2O8) which can affect the removal efficiency were investigated. Diverse degradation by-products were identified using GC-MS analysis. Eventually, the reusability tests confirmed that the synthesized pumice TiO2 catalyst had significant stability after 5 consecutive runs. (C) 2018 Elsevier Ltd. All rights reserved., Aksaray university [2017-042], The authors would like to appreciate the University of Tabriz (Iran) for all the supports prepared. This work has been supported by Research Fund of Aksaray university Project Number 2017-042.
- Published
- 2018