Comparative study of Cu-based bimetallic oxides for Fenton-like degradation of organic pollutants

Wang, Qing; Ma, Yiming; Xing, Shengtao

doi:10.1016/j.chemosphere.2018.04.013

Cited by 65 publications

(17 citation statements)

References 35 publications

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“…Once synthesized and/or isolated, Fe 0 reacts with hydrogen peroxide or dissolved oxygen in the acidic medium required for the Fenton process (pH~2.5-3.5) yielding Fe 2+ as follows: However, the heterogeneous process appears to be less effective than a homogeneous Fenton process due to mass-transfer limitation. To solve this problem, different metal oxides, MO x (e.g., ceria [136], Fe 3 O 4 [137], Mn 3 O 4 [138], WMoO [139], FeCuO 2 , NiCuO 2 [140], etc.) have been recently tested as catalysts or as a support of Fe 0 in a series of alternative Fenton-like processes.…”

Section: The H 2 O 2 /Uv Systemmentioning

confidence: 99%

Advanced Oxidation Processes for the Removal of Antibiotics from Water. An Overview

Cuerda-Correa

Alexandre-Franco

Fernández-González

2019

Water

423

210

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In this work, the application of advanced oxidation processes (AOPs) for the removal of antibiotics from water has been reviewed. The present concern about water has been exposed, and the main problems derived from the presence of emerging pollutants have been analyzed. Photolysis processes, ozone-based AOPs including ozonation, O3/UV, O3/H2O2, and O3/H2O2/UV, hydrogen peroxide-based methods (i.e., H2O2/UV, Fenton, Fenton-like, hetero-Fenton, and photo-Fenton), heterogeneous photocatalysis (TiO2/UV and TiO2/H2O2/UV systems), and sonochemical and electrooxidative AOPs have been reviewed. The main challenges and prospects of AOPs, as well as some recommendations for the improvement of AOPs aimed at the removal of antibiotics from wastewaters, are pointed out.

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Section: The H 2 O 2 /Uv Systemmentioning

confidence: 99%

Advanced Oxidation Processes for the Removal of Antibiotics from Water. An Overview

Cuerda-Correa

Alexandre-Franco

Fernández-González

2019

Water

423

210

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“…16,17 Moreover, copper has good pH adaptability, which is proved to be a significant advantage for the replacement of iron in the Fenton reaction.To avoid the mobilization of Cu + /Cu 2+ in aqueous solution, numerous methods have been suggested to load copper onto the solid substrate to remove different organic pollutants, such as Cu-based bimetallic oxides, Cu-doped goethite, and the zero-valent iron/Cu bimetallic catalyst. 18−20 Layered double hydroxides (LDHs), with the general formula [M 1– x 2+ M 3+ x (OH) 2 ] x + (A n – ) x / n ·mH 2 O, where M 2+ and M 3+ represent divalent and trivalent metal cations, respectively, has certified a category of catalyst and adsorbent to purify the polluted water. Due to the excellent properties, such as anionic exchangeability, topotactic transformation, the high specific surface area, and the typical lamellar structure, LDH materials have attracted attention from researchers in recent years.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Removal of Veterinary Antibiotic Florfenicol by a Cu-Based Fenton-like Catalyst with Wide pH Adaptability and High Efficiency

et al. 2019

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The study on the removal of refractory veterinary antibiotic florfenicol (FF) in water is still very limited. In this study, an efficient Fenton-like catalyst was developed by synthesizing a series of Cu-based multi-metal layered double hydroxides (CuNiFeLa-LDHs) to degrade FF in aqueous solution. In the experiments, the screened CuNiFeLa-2-LDH with the molar ratio of La 3+ /(Fe 3+ + La 3+ ) = 0.1 exhibited high catalytic activity, achieving almost complete degradation of 5 mg L –1 FF under 5 mmol L –1 H 2 O 2 conditions. The mechanisms revealed that the enhanced catalytic performance was ascribed to the existence of Ni which accelerated the electron transfer rate and La which served as a Lewis acidic site to provide more reactive sites in this Cu-dominated Fenton-like reaction, further generating • OH, • O 2 – , and O 2 1 as active species to attack pollutants directly. Interestingly, the catalyst showed a wide pH adaptability and little release of copper ions to the solution. The regenerated CuNiFeLa-2-LDH is demonstrated to be a stable and reliable material for florfenicol degradation.

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“…Copper (I Fig. 3 oxidized to II) and iron (II oxidized to III) ions are typical metals, which are able to initiate the Fenton reaction, various metallic oxides and bimetallic oxides are also highly active (110)(111)(112).…”

Section: Alzheimer Disease and The Other Neurodegenerationsmentioning

confidence: 99%

Copper and copper nanoparticles toxicity and their impact on basic functions in the body

Pohanka¹

2019

BLL

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Copper is a biogenic metal having multiple functions in basic processes in organisms and it is common in all kingdoms of life. Limited intake of copper is a problem; however, doses of copper exceeding the recommended alimentary source are problematic as well and toxicity is soon manifested. Impact of copper nanoparticles on human health is another serious issue taken into consideration in this review. Regarding to copper toxicity, neurodegenerative disorders including Alzheimer and Parkinson diseases are suspected to be linked to copper toxicity or copper can contribute to their progression. Wilson and Menke diseases are also described as examples of copper intolerance. This paper is focused on the description, literature survey and discussion of the current knowledge about copper and copper nanoparticles toxicity and their involvement in various pathological processes (Tab. 6, Fig. 2, Ref. 171).

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Comparative study of Cu-based bimetallic oxides for Fenton-like degradation of organic pollutants

Cited by 65 publications

References 35 publications

Advanced Oxidation Processes for the Removal of Antibiotics from Water. An Overview

Advanced Oxidation Processes for the Removal of Antibiotics from Water. An Overview

Enhanced Removal of Veterinary Antibiotic Florfenicol by a Cu-Based Fenton-like Catalyst with Wide pH Adaptability and High Efficiency

Copper and copper nanoparticles toxicity and their impact on basic functions in the body

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