Activation of Peroxymonosulfate and Persulfate by Metal Loaded Mesoporous Catalysts for Orange G Dye Degradation
The main objective of this research was to study the catalytic activation of two different oxidants (potassium persulfate, PS and peroxymonosulfate, PMS) employing sulfate-based Advanced Oxidation Processes (AOPs). For this purpose, heterogeneous copper and cobalt catalysts were synthesized supported on MCM-41 mesoporous material. These catalysts were characterized by means of Atomic Absorption Spectroscopy (AA), X-ray diffraction (XRD), and Transmission Electron Microscopy (TEM). The metal charge of the catalysts ranged from 5% to 18%. The mesoporous arrangement was held after the metal loading and calcination, as shown by XRD patterns and TEM micrographs. The catalytic degradation of Orange G azo dye (Orange G: OG, disodium 7-hydroxy-8-[(E)-phenyldiazenyl]-1,3-naphthalenedisulfonate) was analysed, and the catalyst activities were determined in a batch reactor. The combination of PMS and higher metal-content Co-supported catalyst attained the best efficiency. In these conditions, the complete decolourization (100%) of the dye was achieved in the first minutes of reaction, while its mineralization reached after 4 h was 49%. Additionally, the catalytic activity of the Co/PMS system (a measure of the catalyst’s reusability) remained constant after three cycles of usage.
KeywordsMCM-41 Copper Cobalt Sulfate radical Orange G Advanced oxidation processes
The authors gratefully acknowledge Lic. Rodolfo Dionisi and Lic. Claudio Vanina for their generous cooperation in the TOC measurements. This project was supported by SGCyT -UNS (Project M24/Q075). M. Alvarez is a CONICET researcher.
- Beck JS, Vartuli J, Roth W, Leonowicz M, Kresge C, Schmitt K, Chu C, Olson D, Sheppard E, McCullen S, Higgins J, Schlenker J (1992) A new family of mesoporous molecular sieves prepared with liquid crystal templates. J Am Chem Soc 114(27):10834–10843. https://doi.org/10.1021/ja00053a020 CrossRefGoogle Scholar
- Chan KH, Chu W (2009) Degradation of atrazine by cobalt-mediated activation of peroxymonosulfate: different cobalt counteranions in homogeneous process and cobalt oxide catalysts in photolytic heterogeneous process. Water Res 43(9):2513–2521. https://doi.org/10.1016/j.watres.2009.02.029 CrossRefGoogle Scholar
- Dias AA, Sampaio A, Bezerra RM (2007) Environmental applications of fungal and plant systems: decolourisation of textile wastewater and related dyestuffs BT. In: Singh SN, Tripathi RD (eds) Environmental Bioremediation Technologies. Springer, Berlin, pp 445–463. https://doi.org/10.1007/978-3-540-34793-4_19
- Govindan K, Raja M, Noel M, James EJ (2014) Degradation of pentachlorophenol by hydroxyl radicals and sulfate radicals using electrochemical activation of peroxomonosulfate, peroxodisulfate and hydrogen peroxide. J Hazard Mater 272:42–51. https://doi.org/10.1016/j.jhazmat.2014.02.036 CrossRefGoogle Scholar
- Gregory P (2003) Functional dyes. In: Industrial Dyes. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA: 543–584. https://doi.org/10.1002/3527602011.ch6
- Mapukata S, Kobayashi N, Kimura M, Nyokong T (2019) Asymmetrical and symmetrical zinc phthalocyanine-cobalt ferrite conjugates embedded in electrospun fibers for dual photocatalytic degradation of azo dyes: methyl Orange and Orange G. J Photochem Photobiol A Chem 379:112–122. https://doi.org/10.1016/j.jphotochem.2019.04.048 CrossRefGoogle Scholar
- Matthew J (2004) Surface analysis by auger and x-ray photoelectron spectroscopy. D. Briggs and J. T. Grant (eds). IMPublications, Chichester, UK and SurfaceSpectra, Manchester, UK, 2003. 900 pp., ISBN 1-901019-04-7, 900 pp, Surface and Interface Analysis, 36(13), pp. 1647–1647. https://doi.org/10.1002/sia.2005 CrossRefGoogle Scholar
- Morales MV, Rocha M, Freire C, Asedegbega-Nieto E, Gallegos-Suarez E, Rodríguez-Ramos I, Guerrero-Ruiz A et al (2017) Development of highly efficient Cu versus Pd catalysts supported on graphitic carbon materials for the reduction of 4-nitrophenol to 4-aminophenol at room temperature. Carbon 111:150–161. https://doi.org/10.1016/j.carbon.2016.09.079 CrossRefGoogle Scholar
- Reddy GT, Kumar G, Reddy NCG (2018) Water-mediated one-pot three-component synthesis of hydrazinyl-thiazoles catalyzed by copper oxide nanoparticles dispersed on titanium dioxide support: a green catalytic process. Adv Synth Catal 360(5):995–1006. https://doi.org/10.1002/adsc.201701063 CrossRefGoogle Scholar
- Wang J, Wan J, Ma Y, Wang Y, Pu M, Guan Z (2016) Metal–organic frameworks MIL-88A with suitable synthesis conditions and optimal dosage for effective catalytic degradation of Orange G through persulfate activation. RSC Adv 6(113):112502–112511. https://doi.org/10.1039/C6RA24429G CrossRefGoogle Scholar
- Zhou Y, Wang X, Zhu C, Dionysiou DD, Zhao G, Fang G, Zhou D (2018) New insight into the mechanism of peroxymonosulfate activation by sulfur-containing minerals: role of sulfur conversion in sulfate radical generation. Water Res 142:208–216. https://doi.org/10.1016/j.watres.2018.06.002 CrossRefGoogle Scholar