Adsorption performance of standard biochar materials against volatile organic compounds in air: A case study using benzene and methyl ethyl ketone

Vikrant, Kumar; Kim, Ki‐Hyun; Peng, Wanxi; Ge, Shengbo; Ok, Yong Sik

doi:10.1016/j.cej.2019.123943

Cited by 81 publications

(17 citation statements)

References 101 publications

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“…In pots without plants (-P) this reduction was remarkable but only signi cant for styrene (-34%, p<0.05) while for pots with plants (+P) the reduction was signi cant for benzene, p, m, and o-xylene (-46%) while for styrene a signi cant increase was observed (+23%, p<0.05). The observed reduction was especially high for the more hydrophobic compounds (higher log K ow values) and could be ascribed to enhanced adsorption by sewage sludge, as previously reported for biochars (Saiz-Rubio et al, 2019;Vikrant et al, 2020).…”

Section: Pot Experimentssupporting

confidence: 78%

“…Regarding anthropogenic compounds, the main VOCs studied in soils amended with sewage sludge are benzene, toluene, ethylbenzene, xylenes and styrene (Urionabarrenetxea et al, 2021). The emission reduction of VOCs after addition of biochar has been attributed to increased adsorption of VOCs by the soil, like benzene, toluene, ethylbenzene, and xylenes (BTEXs) (Vikrant et al, 2020). This adsorption is highly dependent on biochar nature and on the physicochemical properties of the volatiles, being lower for benzene and higher for the rest of non-polar and hydrophobic compounds (Saiz-Rubio et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Atmospheric emissions of volatile organic compounds from a mine soil treated with sewage sludge and tomato plants (Lycopersicum esculentum L.)

Fernández-Espinosa

Peña

Oliva

2021

Preprint

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A laboratory study was carried out to investigate the emissions of volatile organic compounds (VOCs) from a mining soil amended with sewage sludge and irrigated with wastewater in comparison to the non-amended soil, with or without tomato plants (Lycopersicum esculentum L.). The study detected a total of nine VOCs emitted from the polluted soil: benzene, toluene, ethylbenzene, p-xylene, m-xylene, o-xylene, styrene, benzene-1,2,4-trimethyl and tetrachloroethylene, among which the most abundant were toluene, m-xylene and styrene (82.2, 4.1 and 3% respectively). The results showed that soil amended with sewage sludge reduced the emission of VOCs (styrene in pots without plants and benzene and xylenes in pots with plants). On the other hand, tomato plants contributed to increase significantly the emissions of all VOCs except styrene in both amended and non-amended soils.

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Section: Pot Experimentssupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Atmospheric emissions of volatile organic compounds from a mine soil treated with sewage sludge and tomato plants (Lycopersicum esculentum L.)

Fernández-Espinosa

Peña

Oliva

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Of these VOCs, benzene has attracted particular attention because of its common utilization as raw material and solvent in chemical industries, resulting in a facile benzene liberating from variety of sources, such as artificial leathers, synthetic rubbers as well as printers 2,3 . It has been reported that the exposure of over 8 h time‐weight average basis for benzene can induce a negative impact on health, and even make a risk of cancer for the human being 4 . In this regard, adsorption technology originated from chemical and physical adsorption of adsorbents is a mass‐produced and cost‐efficient strategy to remove the VOCs from polluted air 5…”

Section: Introductionmentioning

confidence: 99%

Hierarchically porous N‐doped carbon nanofibers derived from ZIF‐8/PAN composites for benzene adsorption

Xing

Chen

et al. 2020

J of Applied Polymer Sci

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Coupling with electrospinning technique, metal–organic‐frameworks (MOFs)‐derived porous carbon fibers exhibit a great potential application in the adsorption of volatile organic compounds (VOCs) because of their huge surface area, high porosity, as well as sufficient heteroatom‐doped active sites. In this work, the hierarchically porous N‐doped carbon nanofibers are obtained after the pyrolysis of zeolite imidazole framework‐8 and polyacrylonitrile (ZIF‐8/PAN) composite fibers synthesized by electrospinning method. The N‐doped carbon nanofibers fabricated in N2 atmosphere (N‐CF‐N2) present an enhanced adsorption capacity of 694 mg/g for benzene because of the synergistic effect of the hierarchically porous structure and the abundant N‐species‐containing active sites. It is also interesting that the N‐doped hierarchical carbon nanofibers fabricated in Ar atmosphere (N‐CF‐Ar) exhibit a low benzene adsorption as compared with the N‐CF‐N2, which can be attributed to the porous structure damage caused by the bombardment of heavy Ar atoms on the pore shells during the pyrolysis. These results not only show a promising application of the as‐fabricated N‐CF‐N2 in adsorption of VOCs for air purification due to its merit of cost‐efficient, large‐scale production, and excellent adsorption capacity, but also expand the potential of electrospinning technology and composite fibers in volatile organic gas adsorption.

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“…Currently, the rapid development of society, economy, and industry has resulted in environmental pollution, especially, air pollution. Volatile organic compounds (VOCs), such as benzene, toluene, formaldehyde, and acetone, are important air pollutants [1][2][3][4][5]. VOCs can be derived from paints, organic chemi-cals, petrochemicals, and pharmaceuticals, as well as many industrial processes [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Recent advances in VOCs and CO removal via photothermal synergistic catalysis

Wei

Yang

et al. 2021

Chinese Journal of Catalysis

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Adsorption performance of standard biochar materials against volatile organic compounds in air: A case study using benzene and methyl ethyl ketone

Cited by 81 publications

References 101 publications

Atmospheric emissions of volatile organic compounds from a mine soil treated with sewage sludge and tomato plants (Lycopersicum esculentum L.)

Atmospheric emissions of volatile organic compounds from a mine soil treated with sewage sludge and tomato plants (Lycopersicum esculentum L.)

Hierarchically porous N‐doped carbon nanofibers derived from ZIF‐8/PAN composites for benzene adsorption

Recent advances in VOCs and CO removal via photothermal synergistic catalysis

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