Performance of activated carbon-impregnated cellulose filters for indoor VOCs and dust control

Kim, S. Y.; Yoon, Younghan; Kim, K. S.

doi:10.1007/s13762-016-1046-8

Cited by 16 publications

(5 citation statements)

References 16 publications

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“…Moreover, the impregnation of cellulose filters with activated carbon was proposed as a good strategy to gain increased VOC removal ability. The example reported by Kim et al refers to an activated carbon cellulose filter with adsorption capacity for benzene, m-xylene, toluene, and methylbenzene [70].…”

Section: Membranes and Filmsmentioning

confidence: 99%

Cellulose for the Production of Air-Filtering Systems: A Critical Review

et al. 2022

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The control of airborne contaminants is of great interest in improving air quality, which has deteriorated more and more in recent years due to strong industrial growth. In the last decades, cellulose has been largely proposed as suitable feedstock to build up eco-friendly materials for a wide range of applications. Herein, the issue regarding the use of cellulose to develop air-filtering systems is addressed. The review covers different cellulose-based solutions, ranging from aerogels and foams to membranes and films, and to composites, considering either particulate filtration (PM10, PM2.5, and PM0.3) or gas and water permeation. The proposed solutions were evaluated on the bases of their quality factor (QF), whose high value (at least of 0.01 Pa−1 referred to commercial HEPA (high-efficiency particulate air) filters) guarantees the best compromise between high filtration efficiency (>99%) and low pressure drop (<1 kPa/g). To face this aspect, we first analyzed the different morphological aspects which can improve the final filtration performance, outlining the importance on using nanofibers not only to increase surface area and to modulate porosity in final solutions, but also as reinforcement of filters made of different materials. Besides the description of technological approaches to improve the mechanical filtration, selected examples show the importance of the chemical interaction, promoted by the introduction of active functional groups on cellulose (nano)fibers backbone, to improve filtration efficiency without reducing filter porosity.

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Section: Membranes and Filmsmentioning

confidence: 99%

Cellulose for the Production of Air-Filtering Systems: A Critical Review

et al. 2022

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“…Kim et al developed an activated carbon-impregnated cellulose filter and used it to remove dust and volatile organic compounds (VOCs) in the laboratory. The results showed that the composite material had excellent adsorption capacity for PM 10 (99.7%), benzene, toluene, ethylbenzene, and m -xylene (98.9–100%) . However, the formation of a new filter material by a combination of nontoxic CFs and different MOF particles, which may represent a viable approach, is rarely reported, offering a new strategy to enhance the adsorption efficiency of toxic substances from the mainstream smoke.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Cellulose Filters Incorporating Metal–Organic Frameworks for Efficient Nicotine Adsorption from Cigarette Smoke

Liu

Kirillov

et al. 2023

Langmuir

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To prevent negative effects of smoking, there is constant research on the development of various types of sustainable filter materials, capable of removing toxic compounds present in cigarette smoke. Because of the extraordinary porosity and adsorption properties, metal−organic frameworks (MOFs) represent promising adsorbents for volatile toxic molecules such as nicotine. This study reports new hybrid materials wherein six types of common MOFs of different porosity and particle size are incorporated into sustainable cellulose fiber from bamboo pulp, resulting in a series of cellulose filter samples abbreviated as MOF@CF. The obtained hybrid cellulose filters were fully characterized and investigated in nicotine adsorption from cigarette smoke, using a specially designed experimental setup. The results revealed that the UiO-66@ CF material features the best mechanical performance, facile recyclability, and excellent nicotine adsorption efficiency that attains 90% with relative standard deviations lower than 8.80%. This phenomenon may be caused by the large pore size, open metal sites, and high loading of UiO-66 in cellulose filters. Additionally, the high adsorption capacity showed almost 85% removal of nicotine after the third adsorption cycle. The DFT calculation methods allowed further investigation of the nicotine adsorption mechanism, showing that the energy difference between HOMO and LUMO for UiO-66 was the closest to that of nicotine, which further proves the adsorption ability of nicotine by this material. Owing to the flexibility, recyclability, and excellent adsorption performance, the prepared hybrid MOF@CF materials may find prospective applications in nicotine adsorption from cigarette smoke.

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“…Although hydrogen bonds are weaker than chemical bonds, they form long and numerous bonds, resulting in a strong binding force. Previous studies applied cellulose filters to remove particulate and gaseous contaminants in an indoor environment [26][27][28]. In addition, activated carbon was impregnated in cellulose filters to improve their adsorption efficiency of target contaminants.…”

Section: Introductionmentioning

confidence: 99%

Development of an Air Filter to Remove Fine Dust from Indoor Air Using a Traditional Korean Paper, ‘Hanji’

Baek,

Kim,

Yoon

et al. 2023

Sustainability

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Fine and ultrafine particulate matter are consequences of air pollution in industrialized nations. The use of natural materials for filters produces fewer side effects for humans and the environment, and due to their structural characteristics, they have the potential to effectively filter out fine particles. In this study, we developed an indoor, fine-dust removal filter using Hanji, a traditional Korean paper made from natural materials derived from mulberry trees. We impregnated activated carbon (AC) into the Hanji filter and conducted air permeability and efficiency experiments to determine the improvement in indoor air quality. The Hanji filter showed a removal efficiency of 80.4% within the first minute and 99.1% efficiency by the 38th minute, maintaining an efficiency of >99% thereafter. The dust removal efficiency of the AC-embedded Hanji filter proved superior. The dust adhesion was ~20 g/m2. An AC-embedded Hanji filter has the potential to remove not only fine dust but also volatile substances. The use of natural filters is both effective and sustainable.

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Performance of activated carbon-impregnated cellulose filters for indoor VOCs and dust control

Cited by 16 publications

References 16 publications

Cellulose for the Production of Air-Filtering Systems: A Critical Review

Cellulose for the Production of Air-Filtering Systems: A Critical Review

Fabrication of Cellulose Filters Incorporating Metal–Organic Frameworks for Efficient Nicotine Adsorption from Cigarette Smoke

Development of an Air Filter to Remove Fine Dust from Indoor Air Using a Traditional Korean Paper, ‘Hanji’

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