Solar photoelectrocatalytic degradation of ciprofloxacin at a FTO/BiVO4/MnO2 anode: Kinetics, intermediate products and degradation pathway studies

Orimolade, Benjamin O.; Zwane, Busisiwe N.; Koiki, Babatunde A.; Tshwenya, Luthando; Peleyeju, Moses G.; Mabuba, Nonhlangabezo; Zhou, Minghua; Arotiba, Omotayo A.

doi:10.1016/j.jece.2019.103607

Cited by 104 publications

(30 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The degree of process synergy obtained is of the order of 0.387 (greater than zero) which further confirms that the PEC performance is more than the sum of individual electrochemical and photocatalytic degradation efficiencies revealing that the combination of applied bias potential with UV light is synergistic and not cumulative [65].…”

Section: Photoelectrocatalytic Mechanism and Recyclability Study Of The Bahpo 4 Electrodesupporting

confidence: 52%

Barium Hydrogen Phosphate Electrodes for High Electrocatalytic and Photoelectrocatalytic Degradation of Rhodamine B in Neutral Medium: Optimization by Response Surface Methodology

et al. 2020

View full text Add to dashboard Cite

Barium hydrogen phosphate (BaHPO 4 ) thin films were electrodeposited on fluorine-doped tin oxide (FTO) and used as electrocatalysts for organics degradation. The effects of applied current density and deposition time on the phase and morphology of electrodeposited films were analyzed with X-ray diffraction (XRD), scanning electron microscopy (SEM), attenuated total reflectance-Fourier-transform infrared (ATR-FTIR) spectroscopy, Raman spectroscopy, electrochemical impedance spectroscopy (Mott-Schottky) plots, and photocurrent response. The electrodeposited BaHPO 4 films crystallize in the orthorhombic structure and form platelets on the FTO substrate. Response surface methodology (RSM) was used to optimize the operational conditions. Four independent process variables were considered: NaCl concentration, rhodamine B (RhB) initial concentration, applied current density, and reaction time. Based on the model prediction, the optimum conditions for RhB degradation were determined with the maximum RhB degradation of 98.78%. The corresponding experimental value of RhB degradation under the optimum conditions was determined as 99%, which is very close to the optimized one, implying that RSM is a powerful strategy for the process optimization. The photoelectrochemical degradation of RhB, performed at optimal operational conditions, allowed the very fast degradation rates of almost 99% during 7 min due to the synergic effect while combining photocatalysis and electrocatalysis.

show abstract

Section: Photoelectrocatalytic Mechanism and Recyclability Study Of The Bahpo 4 Electrodesupporting

confidence: 52%

Barium Hydrogen Phosphate Electrodes for High Electrocatalytic and Photoelectrocatalytic Degradation of Rhodamine B in Neutral Medium: Optimization by Response Surface Methodology

et al. 2020

View full text Add to dashboard Cite

show abstract

“…However, pharmaceutical residues are released into the environment through various routes during their manufacture and the disposal of unused pharmaceuticals. When pharmaceuticals are ingested or taken orally by animals and humans, they are not entirely metabolized and are discharged via feces or urine to the environment [ 77 ]. The presence of pharmaceutical residues was first reported in wastewaters and surface waters in Europe and the United States in the 1960s [ 77 ].…”

Section: Multifunctional Applications Of Graphitic Carbon Nitride mentioning

confidence: 99%

“…When pharmaceuticals are ingested or taken orally by animals and humans, they are not entirely metabolized and are discharged via feces or urine to the environment [ 77 ]. The presence of pharmaceutical residues was first reported in wastewaters and surface waters in Europe and the United States in the 1960s [ 77 ]. However, a tremendous increase in pharmaceuticals in wastewaters, groundwater, and surface water has been observed since then [ 78 ].…”

Section: Multifunctional Applications Of Graphitic Carbon Nitride mentioning

confidence: 99%

“…Different pharmaceuticals have been detected in various water bodies, primarily antibiotics and pain relief tablets such as paracetamol, ciprofloxacin, sulfamethoxazole, and sulfadimethoxine were reportedly found in concentrations as high as the milligram per liter range in water [ 77 ]. For instance, ciprofloxacin is used for treating bacterial infections in both humans and animals; it has been detected at a concentration of 50 mg/L in effluents of factories producing ciprofloxacin [ 77 ]. Consumption of water containing high levels of ciprofloxacin can result in nausea, diarrhea, vomiting, and acute renal failure [ 77 ].…”

Section: Multifunctional Applications Of Graphitic Carbon Nitride mentioning

confidence: 99%

“…For instance, ciprofloxacin is used for treating bacterial infections in both humans and animals; it has been detected at a concentration of 50 mg/L in effluents of factories producing ciprofloxacin [ 77 ]. Consumption of water containing high levels of ciprofloxacin can result in nausea, diarrhea, vomiting, and acute renal failure [ 77 ]. Therefore, it is crucial to monitor the concentration of pharmaceuticals in various water bodies quantitatively.…”

Section: Multifunctional Applications Of Graphitic Carbon Nitride mentioning

confidence: 99%

See 2 more Smart Citations

Graphitic Carbon Nitride: A Highly Electroactive Nanomaterial for Environmental and Clinical Sensing

Idris

Oseghe

Msagati

et al. 2020

Sensors

View full text Add to dashboard Cite

Graphitic carbon nitride (g-C3N4) is a two-dimensional conjugated polymer that has attracted the interest of researchers and industrial communities owing to its outstanding analytical merits such as low-cost synthesis, high stability, unique electronic properties, catalytic ability, high quantum yield, nontoxicity, metal-free, low bandgap energy, and electron-rich properties. Notably, graphitic carbon nitride (g-C3N4) is the most stable allotrope of carbon nitrides. It has been explored in various analytical fields due to its excellent biocompatibility properties, including ease of surface functionalization and hydrogen-bonding. Graphitic carbon nitride (g-C3N4) acts as a nanomediator and serves as an immobilization layer to detect various biomolecules. Numerous reports have been presented in the literature on applying graphitic carbon nitride (g-C3N4) for the construction of electrochemical sensors and biosensors. Different electrochemical techniques such as cyclic voltammetry, electrochemiluminescence, electrochemical impedance spectroscopy, square wave anodic stripping voltammetry, and amperometry techniques have been extensively used for the detection of biologic molecules and heavy metals, with high sensitivity and good selectivity. For this reason, the leading drive of this review is to stress the importance of employing graphitic carbon nitride (g-C3N4) for the fabrication of electrochemical sensors and biosensors.

show abstract

Development and evaluation of a novel flexible UV-LED TiO2/graphite photoanode for the removal of organic pollutants in water

Razo-Negrete,

Robles,

Castaño-Tostado

et al. 2024

J Solid State Electrochem

View full text Add to dashboard Cite

Solar photoelectrocatalytic degradation of ciprofloxacin at a FTO/BiVO4/MnO2 anode: Kinetics, intermediate products and degradation pathway studies

Cited by 104 publications

References 67 publications

Barium Hydrogen Phosphate Electrodes for High Electrocatalytic and Photoelectrocatalytic Degradation of Rhodamine B in Neutral Medium: Optimization by Response Surface Methodology

Barium Hydrogen Phosphate Electrodes for High Electrocatalytic and Photoelectrocatalytic Degradation of Rhodamine B in Neutral Medium: Optimization by Response Surface Methodology

Graphitic Carbon Nitride: A Highly Electroactive Nanomaterial for Environmental and Clinical Sensing

Development and evaluation of a novel flexible UV-LED TiO2/graphite photoanode for the removal of organic pollutants in water

Contact Info

Product

Resources

About