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Article

Solvothermal Crystallization of Ag/AgxO-AgCl Composites: Effect of Different Chloride Sources/Shape-Tailoring Agents

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Department of Applied and Environmental Chemistry, Faculty of Science and Informatics, University of Szeged, Rerrich Béla Sqr. 1, HU-6720 Szeged, Hungary
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Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian Str. 42, RO-400271 Cluj-Napoca, Romania
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Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida 201313, Uttar Pradesh, India
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Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu Str. 1, RO-400084 Cluj-Napoca, Romania
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Institute of Research-Development-Innovation in Applied Natural Sciences, Babes-Bolyai University, Fântânele Str. 30, RO-400294 Cluj-Napoca, Romania
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Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, Miskolc-Egyetemváros, HU-3515 Miskolc, Hungary
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Authors to whom correspondence should be addressed.
Academic Editor: María V. López-Ramón
Catalysts 2021, 11(3), 379; https://doi.org/10.3390/catal11030379
Received: 4 February 2021 / Revised: 9 March 2021 / Accepted: 9 March 2021 / Published: 15 March 2021
In the present work, AgCl microcrystals were obtained by solvothermal crystallization to investigate the effect of H+, Na+, K+, and different shape-tailoring agents (non-ionic: polyvinylpyrrolidone vs. anionic: sodium dodecyl sulfate) on the textural and photocatalytic properties of the samples. The crystallization process resulted in secondary products, such as AgxO or Ag, AgClO3, AgClO4, which were further transformed during the photocatalytic tests. The most efficient photocatalyst (assessed for methyl orange degradation) was synthesized using HCl, as a chloride source and polyvinylpyrrolidone, as a shape-tailoring agent. Therefore, the ability of polyvinylpyrrolidone to enhance the photocatalytic activity was also investigated, and it was found that the addition of 0.6 g polyvinylpyrrolidone resulted in the most efficient photocatalyst. Moreover, AgxO, being a charge separator, could play a critical role in the photocatalytic process, while reversibly transforming to Ag back and forth. View Full-Text
Keywords: AgCl; methyl orange; polyhedral morphology; polyvinylpyrrolidone; sodium dodecyl sulfate AgCl; methyl orange; polyhedral morphology; polyvinylpyrrolidone; sodium dodecyl sulfate
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MDPI and ACS Style

Tóth, Z.-R.; Maity, S.K.; Gyulavári, T.; Bárdos, E.; Baia, L.; Kovács, G.; Garg, S.; Pap, Z.; Hernadi, K. Solvothermal Crystallization of Ag/AgxO-AgCl Composites: Effect of Different Chloride Sources/Shape-Tailoring Agents. Catalysts 2021, 11, 379. https://doi.org/10.3390/catal11030379

AMA Style

Tóth Z-R, Maity SK, Gyulavári T, Bárdos E, Baia L, Kovács G, Garg S, Pap Z, Hernadi K. Solvothermal Crystallization of Ag/AgxO-AgCl Composites: Effect of Different Chloride Sources/Shape-Tailoring Agents. Catalysts. 2021; 11(3):379. https://doi.org/10.3390/catal11030379

Chicago/Turabian Style

Tóth, Zsejke-Réka; Maity, Saurav K.; Gyulavári, Tamás; Bárdos, Enikő; Baia, Lucian; Kovács, Gábor; Garg, Seema; Pap, Zsolt; Hernadi, Klara. 2021. "Solvothermal Crystallization of Ag/AgxO-AgCl Composites: Effect of Different Chloride Sources/Shape-Tailoring Agents" Catalysts 11, no. 3: 379. https://doi.org/10.3390/catal11030379

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