Waste eggshells to valuable Co3O4/CaCO3 materials as efficient catalysts for VOCs oxidation

Li, Zhanhai; Yang, Da‐Peng; Chen, Yisong; Du, Zhongyi; Guo, Yunlong; Huang, Jiale; Li, Qingbiao

doi:10.1016/j.mcat.2020.110766

Cited by 34 publications

(19 citation statements)

References 56 publications

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“…These studies have demonstrated that eggshell-based catalysts outperformed other types of support materials (i.e., commercial CaCO 3 ; Guo et al, 2019;Li et al, 2020 and oyster shell;Li et al, 2020) as well as pure NPs (Guo et al, 2019;Li et al, 2020). Moreover, Guo et al showed that Pt NPs/eggshell exhibited a more preferable catalytic activity compared to that of commercial 5Pt/C catalyst (Guo et al, 2020).…”

Section: Catalytic Oxidationmentioning

confidence: 99%

“…The recent investigations show that eggshell-based oxidation catalysts exhibit acceptable activity with a special emphasis on activity, stability, and selectivity. In the study by Li et al (2020), the eggshell-supported Co 3 O 4 catalyst for benzene oxidation has been prepared. The catalyst was synthesized by the impregnation method using Co acetate solution, and the obtained precursor was calcined at different temperatures (300-500 • C).…”

Section: Catalytic Oxidationmentioning

confidence: 99%

“…The hierarchical porous structure of eggshell also significantly contributes to the enhancement of overall catalytic performance as it increases the contact area between VOCs and NPs and enhances mass and energy transfer. Finally, it is worth mentioning that the fine-tuning of catalytic performance [i.e., turnover frequencies and the temperature for achieving 90% benzene conversion (T 90% )] of eggshell-based catalysts can be easily accomplished by the appropriate choice of parameters such as type of metal, metal loading, method of synthesis, calcination atmosphere, and temperature (Guo et al, 2019(Guo et al, , 2020Li et al, 2020).…”

Section: Catalytic Oxidationmentioning

confidence: 99%

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State-of-the-Art of Eggshell Waste in Materials Science: Recent Advances in Catalysis, Pharmaceutical Applications, and Mechanochemistry

Baláž

Болдырева

Rybin

et al. 2021

Front. Bioeng. Biotechnol.

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Eggshell waste is among the most abundant waste materials coming from food processing technologies. Despite the unique properties that both its components (eggshell, ES, and eggshell membrane, ESM) possess, it is very often discarded without further use. This review article aims to summarize the recent reports utilizing eggshell waste for very diverse purposes, stressing the need to use a mechanochemical approach to broaden its applications. The most studied field with regards to the potential use of eggshell waste is catalysis. Upon proper treatment, it can be used for turning waste oils into biodiesel and moreover, the catalytic effect of eggshell-based material in organic synthesis is also very beneficial. In inorganic chemistry, the eggshell membrane is very often used as a templating agent for nanoparticles production. Such composites are suitable for application in photocatalysis. These bionanocomposites are also capable of heavy metal ions reduction and can be also used for the ozonation process. The eggshell and its membrane are applicable in electrochemistry as well. Due to the high protein content and the presence of functional groups on the surface, ESM can be easily converted to a high-performance electrode material. Finally, both ES and ESM are suitable for medical applications, as the former can be used as an inexpensive Ca2+ source for the development of medications, particles for drug delivery, organic matrix/mineral nanocomposites as potential tissue scaffolds, food supplements and the latter for the treatment of joint diseases, in reparative medicine and vascular graft producing. For the majority of the above-mentioned applications, the pretreatment of the eggshell waste is necessary. Among other options, the mechanochemical pretreatment has found an inevitable place. Since the publication of the last review paper devoted to the mechanochemical treatment of eggshell waste, a few new works have appeared, which are reviewed here to underline the sustainable character of the proposed methodology. The mechanochemical treatment of eggshell is capable of producing the nanoscale material which can be further used for bioceramics synthesis, dehalogenation processes, wastewater treatment, preparation of hydrophobic filters, lithium-ion batteries, dental materials, and in the building industry as cement.

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Section: Catalytic Oxidationmentioning

confidence: 99%

Section: Catalytic Oxidationmentioning

confidence: 99%

Section: Catalytic Oxidationmentioning

confidence: 99%

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State-of-the-Art of Eggshell Waste in Materials Science: Recent Advances in Catalysis, Pharmaceutical Applications, and Mechanochemistry

Baláž

Болдырева

Rybin

et al. 2021

Front. Bioeng. Biotechnol.

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“…En este contexto, la cáscara de huevo de gallina representa uno de los más abundantes residuos generados por la industria agroalimentaria y sigue siendo dispuesta sin pretratamiento alguno (De Angelis et al, 2017). Según datos de la FAO, China es el mayor productor de huevos en el mundo (40%), seguido de Estados Unidos (7%) y la India (6%); se estima que cerca de 7 millones de toneladas de desechos de cáscara de huevo se descartan anualmente en el mundo (Li et al, 2020). Esta elevada cantidad de residuos despierta interés en la comunidad científica y es por esto que, en los últimos años se han realizado grandes esfuerzos para transformar los desechos de cáscara de huevo en productos de valor agregado (Ding et al, 2020).…”

Section: Introductionunclassified

Combinación de alta cizalla y ultrasonido para la obtención de nanopartículas de carbonato de calcio a partir de cáscara de huevo

2022

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El objetivo de este estudio fue evaluar el efecto combinado de la dispersión de alta cizalla y ultrasonido de alta intensidad sobre las características de nanopartículas (NPs) de carbonato de calcio (CaCO3) de cáscara de huevo de gallina (Gallus gallus domesticus). Se separaron las membranas intersticiales y se caracterizaron las cáscaras: el tamaño de partícula, el potencial zeta, morfología por microscopía, difracción de rayos X y área superficial. Los resultados muestran un tamaño de 572.51 nm, un potencial zeta de -14.9, y escalado de 281.34 nm y -22.4 mV respectivamente. La microscopía reveló nanopartículas de 45 a 500 nm, cristales de 10 a 60 nm y rugosidad en la superficie. El contenido de calcita fue de 98.7% y el área superficial fue de 11.13 m 2 /g. Se concluye que mediante dispersión a alta cizalla y ultrasonido se pueden obtener nanopartículas de carbonato de calcio con características similares a métodos convencionales.

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“…The factors that limit this mechanism are the number of reactive oxygen species, the number of active sites and the type of metal ions at high oxidation states (such as Co 3+ ) [32]. In situ FT-IR studies allowed researchers to postulate the plausible mechanism of benzene oxidation on Co 3 O 4 /eggshell catalysts [45]. In the first step, benzene molecules are adsorbed on cobalt active centers located on the catalyst surface, resulting in the formation of phenolic compounds, which is enhanced by the presence of the active O latt and O ads species.…”

Section: Introductionmentioning

confidence: 99%

In Search of Factors Determining Activity of Co3O4 Nanoparticles Dispersed in Partially Exfoliated Montmorillonite Structure

Rokicińska¹,

Berniak²,

Drozdek³

et al. 2021

Molecules

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The paper discusses a formation of Mt–PAA composite containing a natural montmorillonite structure partially exfoliated by poly(acrylic acid) introduced through intercalation polymerization of acrylic acid. Mt–PAA was subsequently modified by controlled adsorption of Co2+ ions. The presence of aluminosilicate packets (clay) and carboxyl groups (hydrogel) led to the deposition of significant amounts of Co2+ ions, which after calcination formed the Co3O4 spinel particles. The conditions of the Co2+ ions’ deposition (pH, volume and concentration of Co(NO3)2 solution, as well as a type of pH-controlling agent) were widely varied. Physicochemical characterization of the prepared materials (including X-ray fluorescence (XRF), X-ray powder diffraction (XRD), low-temperature nitrogen adsorption, X-ray photoelectron spectroscopy (XPS) and temperature-programmed reduction (H2-TPR)) revealed that the modification conditions strongly influenced the content as well as the distribution of the Co3O4 active phase, tuning its reducibility. The latter parameter was, in turn, very important from the point of view of catalytic activity in the combustion of aromatic volatile organic compounds (VOCs) following the Mars–van Krevelen mechanism.

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Waste eggshells to valuable Co3O4/CaCO3 materials as efficient catalysts for VOCs oxidation

Cited by 34 publications

References 56 publications

State-of-the-Art of Eggshell Waste in Materials Science: Recent Advances in Catalysis, Pharmaceutical Applications, and Mechanochemistry

State-of-the-Art of Eggshell Waste in Materials Science: Recent Advances in Catalysis, Pharmaceutical Applications, and Mechanochemistry

Combinación de alta cizalla y ultrasonido para la obtención de nanopartículas de carbonato de calcio a partir de cáscara de huevo

In Search of Factors Determining Activity of Co3O4 Nanoparticles Dispersed in Partially Exfoliated Montmorillonite Structure

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