Activated carbons modified by magnesium oxide as highly efficient sorbents for acetone

Zhou, Ke; Li, Liqing; Ma, Xiancheng; Mo, Yamian; Chen, Ruofei; Li, Hailong; Li, Haoyang

doi:10.1039/c7ra11740j

Cited by 45 publications

(14 citation statements)

References 58 publications

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“…The nitric acid modified AC exhibited high adsorption capacity of 433.9 mg g -1 on acetone, which might be attributed to the interaction between carboxylic groups and acetone. Similarly, Zhou et al (2018) observed magnesium oxide modified AC also presented high equilibrium amount of acetone (432.7 mg g -1 ) at 25℃, 85.21 g m -3 . It indicated that introduced oxygen functional groups offered active sites, which had strong adsorption affinity on polar acetone.…”

Section: Activated Carbonsupporting

confidence: 58%

A critical review on VOCs adsorption by different porous materials: Species, mechanisms and modification methods

Zhu

Shen

Luo

2020

Journal of Hazardous Materials

619

193

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Volatile organic compounds (VOCs) have attracted world-wide attention regarding their serious hazards on ecological environment and human health. Industrial processes such as fossil fuel combustion, petrochemicals, painting, coatings, pesticides, plastics, contributed to the large proportion of anthropogenic VOCs emission. Destructive methods (catalysis oxidation and biofiltration) and recovery methods (absorption, adsorption, condensation and membrane separation) have been developed for VOCs removal.Adsorption is established as one of the most promising strategies for VOCs abatement thanks to its characteristics of cost-effectiveness, simplicity and low energy consumption. The prominent progress in VOCs adsorption by different kinds of porous materials (such as carbon-based materials, oxygen-contained materials, organic polymers and composites is carefully summarized in this work, concerning the mechanism of adsorbate-adsorbent interactions, modification methods for the mentioned porous materials, and enhancement of VOCs adsorption capacity. This overview is to provide a comprehensive understanding of VOCs adsorption mechanisms and up-to-date progress of modification technologies for different porous materials.

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Section: Activated Carbonsupporting

confidence: 58%

A critical review on VOCs adsorption by different porous materials: Species, mechanisms and modification methods

Zhu

Shen

Luo

2020

Journal of Hazardous Materials

619

193

View full text Add to dashboard Cite

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“…To the best of our knowledge, activated carbons have never been used for the Guerbet reaction whereas MgO dispersed on activated carbons has been proposed as sorbent for different gaseous species, such as CO 2 [19], H 2 S [20,21], and organics [22,23] strongly increasing the adsorption capacity of the raw activated carbon.…”

Section: Introductionmentioning

confidence: 99%

MgO Dispersed on Activated Carbon as Water Tolerant Catalyst for the Conversion of Ethanol into Butanol

2019

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MgO supported on activated carbon (AC) with a load ranging from 10% to 30% has been investigated as catalyst for the conversion of ethanol into butanol at 400 °C in a fixed bed reactor at different GHSV. Catalysts have been characterized by XRD, SEM/EDX, and N2 physisorption at 77 K. The high dispersion of MgO into the pores of the support provides strongly enhanced performance with respect to bulk MgO. MgO/AC catalysts have been also tested under wet feed conditions showing high water tolerance and significantly larger butanol yield with respect to an alumina supported Ru/MgO catalyst. After wet operation, the increased surface area of the catalyst leads to better performance once dry feed conditions are restored.

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“…30 Zhou et al modied AC by MgO and found that increasing of MgO content could greatly enhance the chemical property but suppress the physical property. 31 Great efforts have been made to correlate physico-chemical properties and adsorption capacities of VOCs such as toluene, xylene and alkyl halides. [32][33][34] Other than aforementioned VOCs, acetone is a typical strong polar VOC, which may exhibit different adsorption property to nonpolar or weak polar ones.…”

Section: Introductionmentioning

confidence: 99%

Insight into the significant roles of microstructures and functional groups on carbonaceous surfaces for acetone adsorption

Liu

Lin

et al. 2018

RSC Adv.

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Activated carbons modified by magnesium oxide as highly efficient sorbents for acetone

Abstract: Porous activated carbon modified with MgO was synthesized by an evaporation-induced self-assembly (EISA) method for its application to acetone capture.

Cited by 45 publications

References 58 publications

A critical review on VOCs adsorption by different porous materials: Species, mechanisms and modification methods

A critical review on VOCs adsorption by different porous materials: Species, mechanisms and modification methods

MgO Dispersed on Activated Carbon as Water Tolerant Catalyst for the Conversion of Ethanol into Butanol

Insight into the significant roles of microstructures and functional groups on carbonaceous surfaces for acetone adsorption

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