Functional Porous Carboxymethyl Cellulose/Cellulose Acetate Composite Microspheres: Preparation, Characterization, and Application in the Effective Removal of HCN from Cigarette Smoke
| Autor: | Pan Lining, Guo Jizhao, Sun Peijian, Yipeng Wang, Wang Xiaoyu, Hong Bo Wang, Yang Song, Sun Xuehui, Nie Cong |
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| Rok vydání: | 2019 |
| Předmět: |
Polymers and Plastics
Scanning electron microscope Composite number chemisorption Article lcsh:QD241-441 chemistry.chemical_compound Adsorption Physisorption lcsh:Organic chemistry cupric ions medicine hydrogen cyanide porous microspheres cellulose acetate carboxymethyl cellulose Chemistry technology industry and agriculture General Chemistry Cellulose acetate Carboxymethyl cellulose Chemisorption Yield (chemistry) Nuclear chemistry medicine.drug smoke yield |
| Zdroj: | Polymers Polymers, Vol 11, Iss 1, p 181 (2019) Volume 11 Issue 1 |
| ISSN: | 2073-4360 |
| Popis: | To selectively reduce the yield of hydrogen cyanide (HCN) in the cigarette smoke, functional porous carboxymethyl cellulose/cellulose acetate (CMC/CA) composite microspheres were prepared via the double emulsion-solvent evaporation method. Cupric ions, which have a high complexing ability toward HCN, were introduced to the CMC/CA composite microspheres during the fabrication process via an in situ ion cross-link method. The microspheres were characterized using nitrogen adsorption, mercury intrusion porosimetry, and scanning electron microscopy (SEM). The microspheres have a predominantly macroporous structure indicating weak physisorption properties, but sufficient functional cupric ion groups to selectively adsorb HCN. With these CMC/CA microspheres as filter additives, the smoke yield of HCN could be reduced up to 50%, indicating the great potential of these microspheres as absorbents for removing HCN from cigarette smoke. |
| Databáze: | OpenAIRE |
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