Electrochemically assisted production of biogenic palladium nanoparticles for the catalytic removal of micropollutants in wastewater treatment plants effluent

Law, Cindy Ka Y; Kundu, Kalipada; Bonin, Luiza; Peñacoba-Antona, Lorena; Bolea-Fernández, Eduardo; Vanhaecke, Frank; Rabaey, Korneel; Esteve‐Núñez, Abraham; Gusseme, Bart De; Boon, Nico

doi:10.1016/j.jes.2022.08.018

Cited by 11 publications

(5 citation statements)

References 52 publications

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“…The average size and distribution of Pd nanoparticles deposited on carbon nano-onion structures were determined using transmission electron microscopy (TEM, FEI @ 200kV). Morphology, surface properties, and elemental analysis (EDS) of nanostructures were determined by scanning electron microscopy (Zeiss Gemini SEM 500, cal applications such as energy storage [23], medicine [24], oxygen reduction [25], sensing [26] and waste treatment [27]. Dopamine (DA) is a bioactive molecule that plays vital roles in the human body and is a neurotransmitter for the messaging cognitive function and diseases in the central and peripheral nervous system.…”

Section: Characterization Of Cno So 3 H/cno and Pd/ So 3 H/cnomentioning

confidence: 99%

Electrochemical Dopamine Detection Using Palladium/Carbon Nano Onion Hybrids

IPEKCI

2023

Hittite Journal of Science and Engineering

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In the given study, palladium-decorated carbon nano-onion nanostructures (Pd/CNO) were used as an electrochemical catalyst for detecting dopamine (DA). The physicochemical properties of the Pd/SO3H/CNO-based catalysts were studied by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) methods. Pd/SO3H/CNO inks were dropped cast on a glassy carbon electrode (GCE) to prepare the electrochemical DA sensors. The sensor performance was performed using cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). The electroanalytical results indicated a LOD value of 2.44 M and the linear range of the sensors were found to be between 10 and 400 M DA. The enhanced electrocatalytic activity toward DA is attributed to the high active surface area, conductivity of CNO and the high electrocatalytic property of Pd. The results suggest that Pd/SO3H/CNO nanostructures can be used to detect electrochemical DA sensors with high selectivity, sensitivity, and low LOD.

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Section: Characterization Of Cno So 3 H/cno and Pd/ So 3 H/cnomentioning

confidence: 99%

Electrochemical Dopamine Detection Using Palladium/Carbon Nano Onion Hybrids

IPEKCI

2023

Hittite Journal of Science and Engineering

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“…Recently, water contamination caused by the excessive use and improper treatment of antibiotics has obtained increasing attention [ 1 , 2 ], and owing to their poor biodegradability and high toxicity, the majority of antibiotics are hardly eliminated by traditional methods such as biotechnology [ 3 , 4 ]. As a typical and widely used antibiotic, ciprofloxacin (CIP) increases antibiotic resistance of bacteria in wastewater and poses a serious threat to humans and aquatic organisms [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Degradation of Ciprofloxacin in Aqueous Solution by Peroxymonosulfate Activated with a Magnetic CuFe2O4@Biochar Composite

Zeng

Zhou

et al. 2023

IJMS

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A magnetic copper ferrite and biochar composite (CuFe2O4@BC) catalyst was prepared by an improved sol-gel calcination method and initially used for the removal of antibiotics ciprofloxacin (CIP) by activated peroxymonosulfate (PMS). Using CuFe2O4@BC as the activator, 97.8% CIP removal efficiency could be achieved in 30 min. After a continuous degradation cycle, CuFe2O4@BC catalyst still exhibited great stability and repeatability and could also be quickly recovered by an external magnetic field. Meanwhile, the CuFe2O4@BC/PMS system presented good stability for metal ion leaching, which was far less than the leaching of metal ions in the CuFe2O4/PMS system. Moreover, the effects of various influencing factors, such as initial solution pH, activator loading, PMS dosage, reaction temperature, humic acid (HA), and the inorganic anions were explored. The quenching experiments and the electron paramagnetic resonance (EPR) analysis manifested that hydroxyl radical (•OH), sulfate radical (SO4•−), superoxide radical (O2•−), and singlet oxygen (1O2) were generated in the CuFe2O4@BC/PMS system, while 1O2 and O2•− are mainly involved in the degradation process. The synergistic effect between CuFe2O4 and BC enhanced the structural stability and electrical conductivity of the material, which promoted the bonding between the catalyst and PMS, resulting in the enhanced catalytic activity of CuFe2O4@BC. This indicates that CuFe2O4@BC activating PMS is a promising remediation technique for CIP-contaminated water.

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“…The optimum conditions were applied for the degradation of fluorinated antibiotics and over 90% removal efficiency was recorded. 265 In another study, Cu nanoparticles with an average size of 2–6 nm were produced via a green synthesis approach that utilized the leaf extract of Psidium guajava as a reducing agent. The synthesized nanoparticles showed remarkable photocatalytic activity against ‘hard to degrade’ industrial dyes, namely reactive yellow 160 dye and Nile Blue.…”

Section: Introductionmentioning

confidence: 99%