Enhanced activation of peroxydisulfate by strontium modified BiFeO3perovskite for ciprofloxacin degradation

Wang, Caicai; Gao, Shengwang; Zhu, Jianchao; Xia, Xunfeng; Wang, Mingxin; Xiong, Yanna

doi:10.1016/j.jes.2020.04.026

Cited by 40 publications

(15 citation statements)

References 77 publications

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“…Comparable results were obtained using CaMnO 3 , La 0.8 Sr 0.2 CoO 3−δ and LaCoO 3 nanocomposites as persulfate activators for the removal of phenol and pharmaceutical compounds [15,36,51]. A 4-fold decrease was observed in the rate constant of ciprofloxacin degradation when 20 mmol/L Cl − were added in water in the presence of Sr-doped BiFeO 3 [54]. The detrimental effect of bicarbonate on the degradation of SMX and phenol with persulfate was reported when SPS was activated with La 0.8 Sr 0.2 CoO 3−δ and CaMnO 3 , respectively [15,36].…”

Section: Water Matrix Effectmentioning

confidence: 84%

Section: Water Matrix Effectmentioning

confidence: 97%

“…Guo et al [51] observed that the presence of bicarbonate could significantly retard carbamazepine oxidation in the LaCoO3/SPS system. Wang et al [54] also reported a negative effect on ciprofloxacin degradation in the BiFeO3/SPS system with the addition of HCO . As can also be seen in Figure 7, the presence of humic acid (HA) at two concentrations (i.e., 10 and 20 mg/L representative of the level of total organic carbon found in WW-see Table S1) completely suppressed the SMX degradation rate.…”

Section: Water Matrix Effectmentioning

confidence: 97%

“…CoO δ and LaCoO nanocomposites as persulfate activators for the removal of phenol and pharmaceutical compounds [15,36,51]. A 4-fold decrease was observed in the rate constant of ciprofloxacin degradation when 20 mmol/L Cl were added in water in the presence of Sr-doped BiFeO3 [54]. The detrimental effect of bicarbonate on the degradation of SMX and phenol with persulfate was reported when SPS was The effect of natural organic matter and inorganic anions such as HCO − 3 and Cl − on SMX degradation in the LNO/SPS system was investigated (Figure 7) [51].…”

Section: Water Matrix Effectmentioning

confidence: 99%

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Lanthanum Nickel Oxide: An Effective Heterogeneous Activator of Sodium Persulfate for Antibiotics Elimination

et al. 2020

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In recent years, the presence of pharmaceutically active compounds (PhACs) in surface waters and wastewaters has b the effectiveness of conventional water treatment methods. Towards this direction, advanced oxidation processes (AOPs) for the complete elimination of micro pollutants in waters have become an emerging area of research. The present study reports the heterogeneous activation of sodium persulfate (SPS) by LaNiO3 (LNO) perovskite oxide for the degradation of sulfamethoxazole (SMX), an antibiotic agent. LNO was prepared according to a combustion method, and its physicochemical characteristics were identified by means of XRD, BET, TEM, and SEM/EDS. SMX degradation results showed the great efficiency of LNO for SPS activation. Increasing LNO and SPS dosage up to 250 mg/L enhanced the SMX degradation. In contrast, increasing SMX concentration resulted in longer time periods for its degradation. Considering the pH effect, SMX removal was obstructed under basic conditions, while the efficiency was enhanced at near-neutral conditions. The present system’s activity was also tested for piroxicam (PIR) and methylparaben (MeP) degradation, showing promising results. Unfortunately, experiments conducted in real water matrices such as bottled water (BW) and wastewater (WW), showed that SMX removal was limited to less than 25% in both cases. The hindering effects were mainly attributed to bicarbonate ions and organic matter present in aqueous media. The results obtained using suitable radical scavengers revealed the contribution of both hydroxyl and sulfate radicals in degradation reactions. Finally, LNO exhibited good stability under consecutive experimental runs.

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Section: Water Matrix Effectmentioning

confidence: 84%

Section: Water Matrix Effectmentioning

confidence: 97%

Section: Water Matrix Effectmentioning

confidence: 97%

Section: Water Matrix Effectmentioning

confidence: 99%

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Lanthanum Nickel Oxide: An Effective Heterogeneous Activator of Sodium Persulfate for Antibiotics Elimination

et al. 2020

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“…Among these antibiotics ciprooxacin (CIP) is a representative uoroquinolone antibiotic with antibacterial effects. 1,2 Most studies have reported that animals rarely absorb CIP, and most of it is passively excreted from the body through metabolism and then enter the biosphere cycle aer sewage treatment. 3,4 The accumulation of CIP causes a potential damage to the ecological environment and human health, producing drug-resistant pathogens.…”

Section: Introductionmentioning

confidence: 99%

Novel BiOBr by compositing low-cost biochar for efficient ciprofloxacin removal: the synergy of adsorption and photocatalysis on the degradation kinetics and mechanism insight

et al. 2021

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Synthesis and characterization of LaCo_xNi_1‐xO₃ perovskites as heterogeneous catalysts for phenolics degradation by persulfate activation

Latsiou

Lykos

Bairamis

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND During the last few years, perovskite materials have been widely investigated as catalysts for peroxymonosulfate (PMS) and persulfate (PS) activation in advanced oxidation processes (AOPs) for the degradation of various pollutants. In the present work, a sequence of LaCoxNi1‐xO3 (x = 0, 0.25, 0.50, 0.75, 1) perovskite materials was synthesized by sol–gel method using glycolic acid ethoxylate lauryl ether anionic surfactant as soft template. RESULTS The physicochemical properties of the prepared materials were studied by several techniques, such as N2 porosimetry, Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR FT‐IR), X‐Ray Diffraction (XRD), X‐Ray Fluorescence (XRF), X‐Ray Photoelectron Spectroscopy (XPS), and Scanning Electron Microscopy (SEM). The catalytic activity towards phenolic degradation by persulfate (PS) activation was studied and, based on the reaction rate constant values, the order of increasing catalytic performance was LaCoO3 < LaCo0.75Ni0.25O3 < LaCo0.5Ni0.5O3 < LaCo0.25Ni0.75O3 < LaNiO3. The perovskites that exhibited optimal catalytic activity (i.e., LaCo0.25Ni0.75O3 and LaNiO3) were further evaluated for their stability, reusability, and catalytic mechanism. Finally, according to scavenging experiments, 1O2, SO4•‐, and •OH generated with 1O2 played the dominant role in phenolic degradation. CONCLUSION The substitution of Co by Ni in LaCoO3 materials showed an increase in their catalytic activity towards phenolic oxidation through persulfate activation. The results provide insights into the characterization and mechanisms of novel perovskite catalysts and their applications for the removal of organic pollutants by advanced oxidation processes (AOPs). Further studies improving the stability and reusability of the catalysts should be conducted. © 2022 Society of Chemical Industry (SCI).

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Enhanced activation of peroxydisulfate by strontium modified BiFeO3perovskite for ciprofloxacin degradation

Cited by 40 publications

References 77 publications

Lanthanum Nickel Oxide: An Effective Heterogeneous Activator of Sodium Persulfate for Antibiotics Elimination

Lanthanum Nickel Oxide: An Effective Heterogeneous Activator of Sodium Persulfate for Antibiotics Elimination

Novel BiOBr by compositing low-cost biochar for efficient ciprofloxacin removal: the synergy of adsorption and photocatalysis on the degradation kinetics and mechanism insight

Synthesis and characterization of LaCo_xNi_1‐xO₃ perovskites as heterogeneous catalysts for phenolics degradation by persulfate activation

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Enhanced activation of peroxydisulfate by strontium modified BiFeO3perovskite for ciprofloxacin degradation

Cited by 40 publications

References 77 publications

Lanthanum Nickel Oxide: An Effective Heterogeneous Activator of Sodium Persulfate for Antibiotics Elimination

Lanthanum Nickel Oxide: An Effective Heterogeneous Activator of Sodium Persulfate for Antibiotics Elimination

Novel BiOBr by compositing low-cost biochar for efficient ciprofloxacin removal: the synergy of adsorption and photocatalysis on the degradation kinetics and mechanism insight

Synthesis and characterization of LaCoxNi1‐xO3 perovskites as heterogeneous catalysts for phenolics degradation by persulfate activation

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Synthesis and characterization of LaCo_xNi_1‐xO₃ perovskites as heterogeneous catalysts for phenolics degradation by persulfate activation