Print Email Facebook Twitter Synthesis and characterization of SnO2 crystalline nanoparticles: A new approach for enhancing the catalytic ozonation of acetaminophen Title Synthesis and characterization of SnO2 crystalline nanoparticles: A new approach for enhancing the catalytic ozonation of acetaminophen Author Rashidashmagh, Fatemeh (Shahid Beheshti University) Doekhi-Bennani, Y. (TU Delft Sanitary Engineering) Tizghadam-Ghazani, Mostafa (Shahid Beheshti University) van der Hoek, J.P. (TU Delft Sanitary Engineering) Mashayekh-Salehi, Ali (Shahroud University of Medical Sciences) Heijman, Sebastiaan (TU Delft Sanitary Engineering) Yaghmaeian, Kamyar (Tehran University of Medical Sciences) Date 2021 Abstract A novel sol-gel method was employed in this study to efficiently synthesize SnO2 nanoparticles to catalyze the ozonation of acetaminophen (ACT) from aqueous solutions. The influence of various parameters including Sn source, type of capping and alkaline agents, and calcination temperature on the catalytic activity of the SnO2 preparations was investigated. The SnO2 nanoparticles prepared by tin tetrachloride as Sn source, NaOH as gelatin agent, CTAB as capping agent and at calcination temperature of 550 °C (SnNaC-550) exhibited the maximum performance in the catalysis of ACT. The optimized catalyst (SnNaC-550) had spherical-homogeneous and cubic-shaped nanocrystalline particles with 5.5 nm mean particle size and a BET surface area of 81 m2/g, which resulted in 98% degradation and 84% mineralization of 50 mg/L ACT at 20 and 30 min reaction time, respectively when combined with ozonation (COP). Based on the radical scavenger experiments, •OH was the major oxidizing agent involved in the removal of ACT. LC/MS analysis showed that short-chain carboxylic acids were the main intermediates. Furthermore, the SnNaC-550 catalytic activity was preserved after four successive cycles. Collectively, the new method has the potential to efficiently synthesize stable and reusable SnO2 nanoparticles to catalyze the ozonation of ACT from aquatic environments. Subject Acetaminophen (ACT)Catalytic ozonationEmerging pollutantsSnO nanoparticlesSol-gel To reference this document use: http://resolver.tudelft.nl/uuid:7f18b967-990e-432c-add2-c199a05383d6 DOI https://doi.org/10.1016/j.jhazmat.2020.124154 Embargo date 2021-04-02 ISSN 0304-3894 Source Journal of Hazardous Materials, 404, 124154 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2021 Fatemeh Rashidashmagh, Y. Doekhi-Bennani, Mostafa Tizghadam-Ghazani, J.P. van der Hoek, Ali Mashayekh-Salehi, Sebastiaan Heijman, Kamyar Yaghmaeian Files PDF 2021_SnO2_catalytic_ozonation.pdf 7.15 MB Close viewer /islandora/object/uuid:7f18b967-990e-432c-add2-c199a05383d6/datastream/OBJ/view