Synthesis of Vegetable-Based Activated Carbons with Mixed Micro- and Mesoporosity for Use in Cigarette Filters

Dawson, Elizabeth; Parkes, Gareth M.B.; Branton, Peter

doi:10.1260/0263-6174.30.10.859

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…Hence, various high-performance adsorbing materials have been commonly used to prepare functionalized cigarette filter tips to improve the toxic substance’s absorption efficiency. For instance, activated carbons, − zeolites, carbon nanotubes, carbon nanocages, , titanates, graphene, and molecularly imprinted polymers (MIPs) are used to blend modification with cigarette filter tips. Despite their advantages, these materials utilized as cigarette filter tips present drawbacks such as undesired adsorption capacities, complex synthesis processes, high cost, and secondary pollution.…”

Section: Introductionmentioning

confidence: 99%

Ultrahigh Adsorption of Toxic Substances from Cigarette Smoke Using Nanocellulose-SiO₂ Hybrid Aerogels

Zeng

Wang

Cheng

et al. 2022

ACS Appl. Polym. Mater.

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A cellulose nanofiber-SiO2 hybrid aerogel cigarette (CSG) filter, which can be used for ultrahigh adsorption of toxic substances from cigarette smoke, was prepared based on the skeletal material of cellulose nanofibers (CNFs) with the help of a simple directional frozen technology. SEM and FTIR results confirmed the successful introduction of the SiO2 nanoparticles, and the application process of SiO2 nanoparticles did not influence the three-dimensional network structure of CSGs. Considering the practical application of the CSGs on the cigarette filter, the mechanical and thermal properties of the CSGs were investigated. The stress–strain and TG curves showed that the mechanical and thermal stability properties of the CSGs increased compared with the pure cellulose nanofiber aerogel without the introduction of SiO2 nanoparticles. The adsorption capacity of the CSG filter tips against toxic substances from cigarette smoke was systematically investigated. Compared with conventional cellulose acetate filter tips, the CSG filter tips performed well at adsorption of tar, TPM (total particulate matter), nicotine, and CO from cigarette smoke with removal efficiencies of 92.23, 90.25, 95.02, and 20.63%, respectively. Crucially, the preparation of CSGs needs no extra chemical agents, showing an eco-friendly process. These results suggest that CSGs display great potential working as an ideal candidate for mainstream smoke toxicant adsorption.

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Section: Introductionmentioning

confidence: 99%

Ultrahigh Adsorption of Toxic Substances from Cigarette Smoke Using Nanocellulose-SiO₂ Hybrid Aerogels

Zeng

Wang

Cheng

et al. 2022

ACS Appl. Polym. Mater.

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“…There are many reports on the preparation of activated carbon materials from biomass. With coconut shell as raw material, the activated carbon with a certain proportion of micro-and mesoporosity was prepared by using sodium hydroxide aqueous solution [6].…”

Section: Introductionmentioning

confidence: 99%

Porous Properties and Surface Chemical Properties of the Modified Biomass Materials

Zhang¹,

Zeng²,

Zhang³

et al. 2016

EESRJ

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Porous material was prepared bycarbonization and modification treatmentof the residues extracted from tobacco stems. The preparation process of the adsorption material was optimized by response surface method. The structure and properties of the product were characterizedby scanning electron microscopy, N2 adsorption-desorption, infrared spectroscopy. The results showed that: the excellent produced conditions for the adsorption materials are as follows: the temperature is 707.40 ℃ , the ratio is 1:3 and the time is 17.20 min. The surface of material modified by KOH wasat typicalporousstructurewhich mainlybasedona large number of cavities and pores. The material had high specific surface areas and pore volumes. The material surface was a typical porous structure with a moderate pore size and uniform distribution. The pore structure is mainly based on the larger mesoporous structure and a certain microporous structure. Thematerialwith the specific surface areas and pore volumesas high as 1513.27 m 2 /gand 0.67cm 3 /g were obtained. The pore size is concentrated between 6 ~ 15 nm, which belongs to mesoporous materials. The modified material possesses more abundant functional groups, s such as -OH, -CH and other functional groups, so that the material has a certain pro -organic. The material can effectively adsorb the tar, CO and phenol in the cigarette smoke, which decreased by 20.5%, 19.2%, 49.66%, respectively. The preparation method is simple and easy to operate, and the raw materials are easy to get. The materialhas a strong industrialapplication prospect.

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“…[1,2] Various research groups have been tried to extract nicotine, solanesol, triacetyl glycerin, and cellulose acetate from used cigarette filters or turn them into functional materials. [3][4][5][6][7][8] However, these methods for the recycling of used cigarette filters usually have some limitations including high costs, complex operation, and low efficiency. Therefore, it would be desirable to develop a simple and efficient way to recycle used cigarette filters.…”

Section: Introductionmentioning

confidence: 99%

One-step fabrication of superhydrophobic and superoleophilic cigarette filters for oil-water separation

Liu

Chen

Yang

et al. 2015

Journal of Adhesion Science and Technology

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To develop a simple and efficient way to recycle used cigarette filters, we report on a one-step method for preparing superhydrophobic and superoleophilic cigarette filters for oil-water separation. The robust coating layer on the surface of the cellulose acetate fiber, along with the inherent rough texture of the cigarette filter, could lead to its surface that displayed superhydrophobicity and superoleophilicity. Water droplets can retain in spherical shapes on the modified cigarette filters, while oils were immediately absorbed by the cigarette filters with high absorption capacity. As a result, free oil-water mixtures were separated with efficiency of above 98.0% by the driving force of gravity, and water-in-oil emulsion was also separated with a promising flux of about 2500 L m −2 h −1 . The purity of oil for the tested emulsion was above 99.96%, indicating extremely high separation efficiency. This method for the fabrication of the superhydrophobic and superoleophilic cigarette filters would be a good candidate for recycling the solid wastes and developing an economic oil-water separation material to meet emerging needs in practical applications.

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Synthesis of Vegetable-Based Activated Carbons with Mixed Micro- and Mesoporosity for Use in Cigarette Filters

Cited by 7 publications

References 20 publications

Ultrahigh Adsorption of Toxic Substances from Cigarette Smoke Using Nanocellulose-SiO₂ Hybrid Aerogels

Ultrahigh Adsorption of Toxic Substances from Cigarette Smoke Using Nanocellulose-SiO₂ Hybrid Aerogels

Porous Properties and Surface Chemical Properties of the Modified Biomass Materials

One-step fabrication of superhydrophobic and superoleophilic cigarette filters for oil-water separation

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Synthesis of Vegetable-Based Activated Carbons with Mixed Micro- and Mesoporosity for Use in Cigarette Filters

Cited by 7 publications

References 20 publications

Ultrahigh Adsorption of Toxic Substances from Cigarette Smoke Using Nanocellulose-SiO2 Hybrid Aerogels

Ultrahigh Adsorption of Toxic Substances from Cigarette Smoke Using Nanocellulose-SiO2 Hybrid Aerogels

Porous Properties and Surface Chemical Properties of the Modified Biomass Materials

One-step fabrication of superhydrophobic and superoleophilic cigarette filters for oil-water separation

Contact Info

Product

Resources

About

Ultrahigh Adsorption of Toxic Substances from Cigarette Smoke Using Nanocellulose-SiO₂ Hybrid Aerogels

Ultrahigh Adsorption of Toxic Substances from Cigarette Smoke Using Nanocellulose-SiO₂ Hybrid Aerogels