Novel perovskite-based composites, La1−xNdxFeO3@activated carbon, as efficient catalysts for the degradation of organic pollutants by heterogeneous electro-Fenton reactions

Wang, Qijun; Zhou, Shu; Xiao, Song; Wei, Feifei; Zhao, Xuezhu; Qu, Jun‐e; Wang, Hairen

doi:10.1039/c8ra00244d

Cited by 17 publications

(4 citation statements)

References 37 publications

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“…prepared a La 1− x Nd x FeO 3 air diffusion cathode with a plate shape (3 × 5 cm 2 ) for the MO degradation. [ 215 ] The most efficient La 0.6 Nd 0.4 FeO 3 exhibited a 99.81% decolor rate in 10 min at 4 mA cm −2 , mirroring the good oxidative property of the cathode. Identically, the degradation processes are also composed of the ORR on cathode, the H 2 O 2 activation via Fenton reaction, and MO decomposition through both • OH and anode oxidation.…”

Section: Recent Progress Of Perovskite Oxide In Aopsmentioning

confidence: 93%

Perovskite Oxide Catalysts for Advanced Oxidation Reactions

Wang

Chen

Shao

et al. 2021

Adv Funct Materials

115

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Meeting the escalating demand for clean water resources is one of the key challenges to ensure a sustainable future. Catalysis plays an important role to advance the chemical reactions required for wastewater efficient remediation. How to exploit high-performance catalysts to boost the pivotal reaction kinetics always attracts researchers' enthusiasm. Perovskite oxides as a novel class of functional materials can be tuned to confer compositional flexibilities and provide rich and unique structural properties. As the rising-star material, it has been widely probed for electrocatalysis, photocatalysis, and membrane-catalysis for energy conversion, but received less attention in water treatment. In this review, the advances of perovskite oxides for advanced oxidation processes (AOPs) in water remediation are comprehensively elaborated. A fundamental understanding of the crystal structures and properties of perovskite oxides as well as the basic principles of AOPs is firstly provided. Then, emphasis is placed on how to tune the perovskite oxides to suit various AOPs. The strategies to design novel perovskite oxides to enhance the catalytic activities in AOPs have been highlighted. It is expected that after reading this review, readers will have a clearer vision of the background, the state of the art development, and general guidelines for future directions regarding research in this area.

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Section: Recent Progress Of Perovskite Oxide In Aopsmentioning

confidence: 93%

Perovskite Oxide Catalysts for Advanced Oxidation Reactions

Wang

Chen

Shao

et al. 2021

Adv Funct Materials

115

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“…A series of AC-based perovskite nanocomposites (La 1-x Nd x FeO 3 @AC) were developed for the treatment of wastewater through electrochemical decomposition of MO dye. The La 0.6 Nd 0.4 FeO 3 @AC nanocomposite anode exhibited a removal efficiency of 99.81 % and 96.66 %, respectively, for MO and COD in 10 min [165].…”

Section: Activated Carbon and Nanoporous Carbon 231 Activated Carbonmentioning

confidence: 97%

Carbon Nanomaterials for Wastewater Treatment

et al. 2021

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The research progress made in recent years in removal of organic-inorganic pollutants from wastewater using various types of carbon materials as adsorbents such as carbon nanotubes, carbon nanofibers, graphenes, graphitic carbon nitride, fullerene, activated carbon spheres, and carbon quantum dots is reviewed. These carbon nanomaterials with hierarchical structures are efficient and economical adsorbents. The techniques of metal impregnation and doping help to control the porosity and surface area of nanomaterials. Electrostatic forces, p-p and p-e interactions, van der Waals weak forces, and oxygen-containing groups are considered responsible for the removal of pollutants from wastewater. The carbon nanomaterial-based photocatalysts are applied successfully in decomposition of persistent dyes under visible light. Fe 3 O 4 magnetic material is employed as recyclable adsorbent after treatment of wastewater. Freundlich and Langmuir models are found more suitable to calculate the adsorption efficiency and adsorption kinetics of pollutants. Criteria and properties of carbon nanomaterials are discussed that might play a significant role in remediation of wastewater.

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“…This approach solves the catalyst recovery problem in photocatalysis. This electrochemical approach, however, requires high voltage and is prone to oxygen evolution, and the process is limited by mass transfer (Malpass et al, 2010;Sirés et al, 2014;Brillas and Martínez-Huitle, 2015;Kusmierek and Chrzescijanska, 2015;Umukoro et al, 2017;Wang et al, 2018). The quest for improved techniques led to the emergence of photoelectrochemical oxidation or photoelectrocatalytic (PEC) processes.…”

Section: Photoelectrocatalysismentioning

confidence: 99%

Perovskite Oxide–Based Materials for Photocatalytic and Photoelectrocatalytic Treatment of Water

Nkwachukwu

Arotiba

2021

Front. Chem.

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Meeting the global challenge of water availability necessitates diversification from traditional water treatment methods to other complementary methods, such as photocatalysis and photoelectrocatalysis (PEC), for a more robust solution. Materials play very important roles in the development of these newer methods. Thus, the quest and applications of a myriad of materials are ongoing areas of water research. Perovskite and perovskite-related materials, which have been largely explored in the energy sectors, are potential materials in water treatment technologies. In this review, attention is paid to the recent progress in the application of perovskite materials in photocatalytic and photoelectrocatalytic degradation of organic pollutants in water. Water treatment applications of lanthanum, ferrite, titanate, and tantalum (and others)-based perovskites are discussed. The chemical nature and different synthetic routes of perovskites or perovskite composites are presented as fundamental to applications.

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Novel perovskite-based composites, La_1−xNd_xFeO₃@activated carbon, as efficient catalysts for the degradation of organic pollutants by heterogeneous electro-Fenton reactions

Abstract: We present a facile sol–gel method for the design and preparation of a series of perovskite-activated carbon composites (La1−xNdxFeO3@AC) for the degradation of methyl orange.

Cited by 17 publications

References 37 publications

Perovskite Oxide Catalysts for Advanced Oxidation Reactions

Perovskite Oxide Catalysts for Advanced Oxidation Reactions

Carbon Nanomaterials for Wastewater Treatment

Perovskite Oxide–Based Materials for Photocatalytic and Photoelectrocatalytic Treatment of Water

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