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One-Pot Combustion Fabrication of Grain-Like Mesoporous Intra-Heterostructure Bi(X)O(Y)Cl(Z) Nanophotocatalyst with Substantial Solar-Light-Driven Degradation of Antibiotic Ofloxacin: Influence of Various Fuels

Abstract

In the present study, Bi(x)O(y)Cl(z) nanophotocatalyst, was synthesized via one-pot solution combustion synthesis using various fuels such as glycine, urea, citric acid and sorbitol. The photocatalysts characterization was carried out by XRD, FESEM, TEM, PSD, EDX, BET-BJH, UV-Vis DRS, PL techniques and pHpzc. The results revealed that the grain-like mesoporous Bi(x)O(y)Cl(z) nanophotocatalyst, consisting of BiOCl and Bi24O31Cl10, was successfully synthesized using sorbitol. The fabricated nanophotocatalysts applied in degradation of antibiotic ofloxacin under simulated-solar-light. Under simulated solar light, the highest efficiency (82.5%) and reaction rate (k = 0.017 min-1) on the photo-degradation of antibiotic ofloxacin were obtained over the grain-like mesoporous nanophotocatalyst synthesized with sorbitol. Effect of operating parameters such as pH, catalyst loading and antibiotic concentration exhibited the increment of the photocatalytic performance of Bi(x)O(y)Cl(z) (Sorbitol) at the low concentration of pollutant, the optimal catalyst dosage (5 g/L) and in acidic media. The high stability after five reaction cycles observed for Bi(x)O(y)Cl(z) (Sorbitol) nanophotocatalyst. Moreover, the reaction mechanism was suggested for the photo-degradation of antibiotic ofloxacin over Bi(x)O(y)Cl(z) (Sorbitol).

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Publication details

The article was received on 16 Mar 2018, accepted on 20 Jun 2018 and first published on 21 Jun 2018


Article type: Paper
DOI: 10.1039/C8CY00547H
Citation: Catal. Sci. Technol., 2018, Accepted Manuscript
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    One-Pot Combustion Fabrication of Grain-Like Mesoporous Intra-Heterostructure Bi(X)O(Y)Cl(Z) Nanophotocatalyst with Substantial Solar-Light-Driven Degradation of Antibiotic Ofloxacin: Influence of Various Fuels

    M. Shabani, M. Haghighi and D. Kahforoushan, Catal. Sci. Technol., 2018, Accepted Manuscript , DOI: 10.1039/C8CY00547H

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