Persulfate Promoted ZnIn2S4 Visible Light Photocatalytic Dye Decomposition
Open Access
- 1 September 2020
- journal article
- research article
- Published by Elsevier BV in International Journal of Electrochemical Science
- Vol. 15 (9), 8761-8770
- https://doi.org/10.20964/2020.09.51
Abstract
In this work, a synergistic way for promoting the ZnIn2S4 nanoparticle photocatalysis coupled with persulfate (PS) under LED visible light was proposed. The ZnIn2S4 nanoparticle was prepared through a hydrothermal procedure and studied by diversified characterizations. When 1 mmol/L PS was added, 86% of methyl orange (MO) with the beginning amount of 15 mg/L was decolorized at the ZnIn2S4 dosage of 0.2 g/L and pH of 6 after 120 min treatment. The ZnIn2S4/PS process presented a good stability during five cyclic utilizations. Besides, the scavenger addition tests proved the sulfate radical and superoxide radical were the main species for the MO elimination. The chemical oxygen demand and total organic carbon results indicated that the synergistic system could improve the degradation and mineralization effects for the MO. In summary, the coupling ZnIn2S4/PS system presented a favorable synergistic photocatalytic performance, which not only could improve the separation of electron and hole and then activate PS, but also promote the decomposition of MO.Keywords
This publication has 43 references indexed in Scilit:
- AgIn5S8 nanoparticles anchored on 2D layered ZnIn2S4 to form 0D/2D heterojunction for enhanced visible-light photocatalytic hydrogen evolutionApplied Catalysis B: Environment and Energy, 2018
- Improved dye removal and simultaneous electricity production in a photocatalytic fuel cell coupling with persulfate activationElectrochimica Acta, 2018
- VUV/TiO2 photocatalytic oxidation process of methyl orange and simultaneous utilization of the lamp-generated ozoneChemical Engineering Science, 2018
- Persulfate activation in gas phase surface discharge plasma for synergetic removal of antibiotic in waterChemical Engineering Journal, 2017
- Construction of Z-scheme photocatalytic systems using ZnIn 2 S 4 , CoO x -loaded Bi 2 MoO 6 and reduced graphene oxide electron mediator and its efficient nonsacrificial water splitting under visible lightChemical Engineering Journal, 2017
- Electrodeposition Synthesis of PANI/MnO2/Graphene Composite Materials and its Electrochemical PerformanceInternational Journal of Electrochemical Science, 2017
- Enhanced decolorization of methyl orange in aqueous solution using iron–carbon micro-electrolysis activation of sodium persulfateChemosphere, 2017
- Nitrogen-doped graphene for supercapacitor with long-term electrochemical stabilityEnergy, 2014
- Photocatalytic degradation of 2,4,6-tribromophenol over Fe-doped ZnIn2S4: Stable activity and enhanced debrominationApplied Catalysis B: Environment and Energy, 2013
- Exploring the Different Photocatalytic Performance for Dye Degradations over Hexagonal ZnIn2S4 Microspheres and Cubic ZnIn2S4 NanoparticlesACS Applied Materials & Interfaces, 2012