LaFeO3 and BiFeO3 perovskites as nanocatalysts for contaminant degradation in heterogeneous Fenton-like reactions

Rusevova, Klara; Köferstein, Roberto; Rosell, Mònica; Richnow, Hans H.; Kopinke, Frank‐Dieter; Georgi, Anett

doi:10.1016/j.cej.2013.11.025

Cited by 163 publications

(69 citation statements)

References 42 publications

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“…The degradation efficiency was improved by a factor of approximately three when the pH was decreased to pH 5. However, its activity was greatly inhibited by surface re-organization [16,17] and the synthesis conditions strongly influence the structural characteristics as well as the catalytic activity of LaFeO 3 particles [17].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the application of ABO 3 in adsorption [12], photocatalysis [13] and Fenton-like reaction [14][15][16][17] has been reported by changing the element at A and B site. Luo et al demonstrated interesting catalytic properties of BiFeO 3 nanoparticles as Fenton-like catalyst for the degradation of Rhodamine B at pH 5.0 [14], especially for the degradation of bisphenol A in the presence of chelating agents [15].…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Fenton-like degradation of refractory organic compounds by surface complex formation of LaFeO3 and H2O2

Nie

Zhang

et al. 2015

Journal of Hazardous Materials

111

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Fenton-like degradation of refractory organic compounds by surface complex formation of LaFeO3 and H2O2

Nie

Zhang

et al. 2015

Journal of Hazardous Materials

111

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“…According to the BET analysis result, the BJH method cumulative adsorption surface area is determined as 4.37 m 2 /g. Rusevova et al synthesized BiFeO3 catalyst and its surface area is determined as 3.2 m 2 /g [13]. Hence, synthesized catalyst in this study has higher surface area with respect to the mentioned study.…”

Section: Characterizationmentioning

confidence: 95%

“…Perovskite type catalysts are preferred due to their effectiveness in catalytic oxidation and also, they provide high thermal stability, exchangeability of cations, and considerable activity [11]. In literature, bismuth ferrite nanoparticles show a high catalytic activity degradation of Reactive Black 5 [12] and BiFeO3 is effective on the degradation of phenol and methyl tert-butyl ether (MTBE) [13].…”

Section: Introductionmentioning

confidence: 99%

Degradation of ethylparaben using photo-Fenton-like oxidation over BiFeO3

Orak¹,

Atalay²,

Ersöz³

2016

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY a - Applied Sciences and Engineering

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The degradation of ethylparaben using photo-Fenton-like oxidation was investigated in the presence of a BiFeO3 catalyst. Firstly, the catalyst was synthesized using the sol-gel method and characterized via BET and FT-IR analyzes and then, a parametric study was carried out in order to determine the optimum reaction conditions for the degradation of ethylparaben. In this context, the effects of catalyst loading, [H2O2]o, pH, and temperature on the degradation were investigated. According to the results, the optimum reaction conditions were determined for a 5 ppm ethylparaben solution as 0.25 g/L catalyst loading, a pH of 3, and 2 mM [H2O2]o and a 97.7% degradation of ethylparaben was accomplished. Iron leaching at the optimum conditions was evaluated as 1.53 ppm and it is lower than the E.U. iron concentration limitation (2 ppm) in the water. The kinetic study was carried out at the optimum reaction conditions at three different temperatures (25, 35, and 45 °C). The degradation of ethylparaben using photo-Fenton-like oxidation fitted the first order reaction kinetic model. The reaction rate constants were determined as 0.041, 0.050, and 0.069 min -1 for 25, 35, and 45 °C, respectively. The activation energy was found as 20.4 kJ/mol.

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“…Xu and Wang [11] found that the removal rate of 4-chlorophenol in a heterogeneous Fenton reaction was 100% for CeO 2 /Fe 3 O 4 composite catalyst after 120 minutes at a pH of 3, compared with only 5% and 21% for CeO 2 and Fe 3 O 4 catalysts, respectively. Other metals that were incorporated into iron based Fenton catalysts include; Mo (Tian et al), Al (Patra et al) and Ti (Zhong et al) [13][14][15]. However, no works have investigated the incorporation of boron into iron based catalyst for heterogeneous Fenton-like reactions.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Role of Boron Doping in Enhancing the Catalytic Activityof Aematite for Fenton Oxidative Treatment of Tannery Wastewater:Parameters Optimisation through Response Surface Methodology

Ahmed¹,

Hasan²,

Hamza³

2017

Med Aromat Plants

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Boron doped hematite catalysts 10%B-90% α-Fe 2 O 3 (10BH) and 5%B-95% α-Fe 2 O 3 (5BH) were synthesized and characterized using XRD, BET and SEM techniques. Central composite design (CCD) matrix and response surface methodology (RSM) were applied to design experiments for evaluating the interactive effects of four operating variables [peroxide dosage (600-1200 mg/l), catalyst dosage (10-50 mg/l), pH (3-8), and reaction time (10-300 mins)] on the percentage COD reduction of tannery wastewater with initial COD of 1200 mg/l. RSM showed that the BH catalyst had better percentage COD reduction of 83% at optimum parameter values of 600 mg/l, 35 mg/l, 8 and 90 minutes for peroxide dosage, catalyst dosage, pH and time respectively. 71% COD reduction was achieved with the 5BH catalyst at optimum parameter values of 600 mg/l, 35 mg/l, 8 and 90 minutes for peroxide dosage, catalyst dosage, pH and time respectively. This study clearly showed that boron doping increased the catalytic activity of hematite as a catalyst in the Fenton oxidation system.

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LaFeO3 and BiFeO3 perovskites as nanocatalysts for contaminant degradation in heterogeneous Fenton-like reactions

Cited by 163 publications

References 42 publications

Enhanced Fenton-like degradation of refractory organic compounds by surface complex formation of LaFeO3 and H2O2

Enhanced Fenton-like degradation of refractory organic compounds by surface complex formation of LaFeO3 and H2O2

Degradation of ethylparaben using photo-Fenton-like oxidation over BiFeO3

Investigating the Role of Boron Doping in Enhancing the Catalytic Activityof Aematite for Fenton Oxidative Treatment of Tannery Wastewater:Parameters Optimisation through Response Surface Methodology

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