A novel electrochemical cathode based on sea urchin-like NiO/Co3O4 composite inducing efficient Fenton-like process for levofloxacin degradation

Zhang, Yichen; Hua, Shugui; Sun, Xiaoqin; Liu, Zhuoyue; Dang, Yuan; Zhang, Liang; Zhou, Yuanzhen

doi:10.1016/j.apcata.2021.118403

Cited by 15 publications

(4 citation statements)

References 53 publications

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“…In general, all spectroscopies rely on Lambert-Beer's law, but there are some limitations to this law. According to Lambert-Beer law, if a group of monochromatic rays strikes a uniform substance, a part of those rays is absorbed by the material [76,77]. UV-Vis absorption measurements for all samples are presented in Figure 12a, which shows the absorption edge shift towards longer wavelengths at the higher value of NiCr2O4 in the material.…”

Section: Uv-vis Spectroscopy Evaluationsmentioning

confidence: 99%

Structural characterization, lattice features, and optical, and magnetic properties of Ni-Cr oxide nanocomposite

Javadi

Mohammadzadeh

Aghaeinejad‐Meybodi

2023

Preprint

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In the present study, the nanocomposite of Ni-Cr oxide was synthesized through the chemical co-precipitation route with different ratios of NiO to Cr2O3, including 50–50, 60 − 40, and 70 − 30 wt. %. The morphological and physical properties of products were assessed thoroughly. Moreover, the possible chemical reactions through synthesis were proposed based on FTIR and XRD results. The crystallite size, the lattice strain, and stress were evaluated through some well-known methods based on XRD diffraction. The particle size and morphology of produced powders were studied by FESEM imaging. Also, the optical and magnetic features were assessed by UV-Vis spectroscopy and VSM analysis, respectively. The results proved the presence of NiO and NiCr2O4 in the calcined products, with uniform distribution of elements and an average particle size of < 30 nm. Moreover, the crystallite size, and the lattice stress and strain decreased with increasing NiO in the product. According to the VSM curves, nanocomposite powders showed a weak ferro/ferrimagnetic signal with a fairly dominant superparamagnetic feature. While the largest coercivity of 252 Oe belonged to the sample 70 − 30, the highest magnetization saturation (0.291 emu/g) was observed for 50–50. According to the UV-Vis curves, the value of band gap energy was in the semiconductor’s domain and increased by NiO value in the hybrid oxide combination.

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Section: Uv-vis Spectroscopy Evaluationsmentioning

confidence: 99%

Structural characterization, lattice features, and optical, and magnetic properties of Ni-Cr oxide nanocomposite

Javadi

Mohammadzadeh

Aghaeinejad‐Meybodi

2023

Preprint

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“…Other studies have reported the degradation of Levofloxacin (LVX) by chemical oxidation using permanganate (Mn (VII)) ( Figure 2 b) [ 209 , 210 ]. Additionally, other authors evaluated the degradation of Levofloxacin (LVX) using Fenton and proposed the possible degradation steps ( Figure 2 c) [ 211 , 212 , 213 , 214 ].…”

Section: Overviews Of Degradation Of Antibioticsmentioning

confidence: 99%

“…( b ) Intermediates generated from an oxidation process with permanganate (Mn (VII)) [ 209 , 210 ]. ( c ) Intermediates generated from a Fenton process [ 211 , 212 , 213 , 214 ]. ( d ) Intermediates generated from photocatalysis [ 202 , 215 , 216 ].…”

Section: Figurementioning

confidence: 99%

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases

et al. 2022

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The first traces of Tetracycline (TE) were detected in human skeletons from Sudan and Egypt, finding that it may be related to the diet of the time, the use of some dyes, and the use of soils loaded with microorganisms, such as Streptomyces spp., among other microorganisms capable of producing antibiotics. However, most people only recognise authors dating between 1904 and 1940, such as Ehrlich, Domagk, and Fleming. Antibiotics are the therapeutic option for countless infections treatment; unfortunately, they are the second most common group of drugs in wastewaters worldwide due to failures in industrial waste treatments (pharmaceutics, hospitals, senior residences) and their irrational use in humans and animals. The main antibiotics problem lies in delivered and non-prescribed human use, use in livestock as growth promoters, and crop cultivation as biocides (regulated activities that have not complied in some places). This practice has led to the toxicity of the environment as antibiotics generate eutrophication, water pollution, nutrient imbalance, and press antibiotic resistance. In addition, the removal of antibiotics is not a required process in global wastewater treatment standards. This review aims to raise awareness of the negative impact of antibiotics as residues and physical, chemical, and biological treatments for their degradation. We discuss the high cost of physical and chemical treatments, the risk of using chemicals that worsen the situation, and the fact that each antibiotic class can be transformed differently with each of these treatments and generate new compounds that could be more toxic than the original ones; also, we discuss the use of enzymes for antibiotic degradation, with emphasis on laccases.

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“…25 Furthermore, Co oxide can catalytically generate •OH, a strong oxidizing agent, through an electro-Fenton-like reaction. 26 These radicals generated by cobalt can effectively degrade AMX by opening and cleavaging β-lactam and thiazolidine rings. 16,27 Therefore, in this study, Co 3 O 4 was loaded on the GAC as a catalyst to achieve the purpose of reductive degradation as well as oxidative degradation of AMX.…”

mentioning

confidence: 99%

Preparation of Granular Activated Carbon Particle Electrode Loaded with Co₃O₄ and its Effect on Amoxicillin Wastewater Treatment

Sun

Wang

et al. 2023

J. Electrochem. Soc.

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A granular activated carbon (GAC) loaded with Co3O4 catalyst (Co3O4/GAC) was used as a particle electrode for three-dimensional (3D) electrochemical treatment of amoxicillin (AMX) wastewater. The morphology, crystal structure, surface chemical bonds, specific surface area, and pore structure of the particle electrodes were characterized. Considering AMX and TOC removal rates and electrical energy consumption (EEC), the optimal manufacturing conditions of the Co3O4/GAC were determined as the calcination temperature of 700°C, the calcination time of 5 hours, and the impregnation time of 3 hours, respectively. The measurement of electrochemical impedance spectroscopy showed that the interfacial electron transfer property of Co3O4/GAC was much improved compared with GAC. AMX removal rate (96.0%, 40 min), TOC removal rate (84.4%, 2 h), and EEC (87.2 kWh kg-1 TOC) of the 3D-Co3O4/GAC system were all significantly improved compared to the 3D-GAC system (77.9%, 40.3%, 232.9 kWh kg-1 TOC) and the 2D system (66.4%, 3.9%, 2080.3 kWh kg-1 TOC) under the same operating conditions. It was confirmed that Co3O4/GAC catalytically generates •OH and H• radicals and increases the conductivity inside the reactor. The degradation of AMX was confirmed using ultraviolet-visible spectroscopy and the degradation mechanism of AMX in the 3D-Co3O4/GAC system was proposed.

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A novel electrochemical cathode based on sea urchin-like NiO/Co3O4 composite inducing efficient Fenton-like process for levofloxacin degradation

Cited by 15 publications

References 53 publications

Structural characterization, lattice features, and optical, and magnetic properties of Ni-Cr oxide nanocomposite

Structural characterization, lattice features, and optical, and magnetic properties of Ni-Cr oxide nanocomposite

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases

Preparation of Granular Activated Carbon Particle Electrode Loaded with Co₃O₄ and its Effect on Amoxicillin Wastewater Treatment

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A novel electrochemical cathode based on sea urchin-like NiO/Co3O4 composite inducing efficient Fenton-like process for levofloxacin degradation

Cited by 15 publications

References 53 publications

Structural characterization, lattice features, and optical, and magnetic properties of Ni-Cr oxide nanocomposite

Structural characterization, lattice features, and optical, and magnetic properties of Ni-Cr oxide nanocomposite

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases

Preparation of Granular Activated Carbon Particle Electrode Loaded with Co3O4 and its Effect on Amoxicillin Wastewater Treatment

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Product

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Preparation of Granular Activated Carbon Particle Electrode Loaded with Co₃O₄ and its Effect on Amoxicillin Wastewater Treatment