title: Entrapment of carbon dioxide with chitosan-based core-shell particles containing changeable cores.
abstract: Water-soluble chitosan-based core-shell particles that contained changeable cores were successfully applied to anchor carbon dioxide. The entrapment capacity of the particles for carbon dioxide (EC) depended on the cores. It was found that EC of the particles contained aqueous cores was higher than that of the beads with water-soluble chitosan gel cores, which was confirmed with thermogravimetric analysis. In addition, calcium ions and sodium hydroxide were introduced within the particles to examine their effect on the entrapment. EC of the particles was enhanced with sodium hydroxide when the cores were WSC gel. The incorporation of calcium ions was helpful for stabilizing carbon dioxide through the formation of calcium carbonate, which was verified with Fourier transform infrared spectra and scanning electron microscopy/energy-dispersive spectrometry. This phenomenon meant the role of calcium ions for fixating carbon dioxide was significant.
authors.affiliation: College of Material Science and Engineering of Huaqiao University, Quanzhou, 362021, China.
authors.forename: Yanrui
authors.initials: Y
authors.lastname: Dong
authors.affiliation: College of Material Science and Engineering of Huaqiao University, Quanzhou, 362021, China.
authors.forename: Yinghao
authors.initials: Y
authors.lastname: Fu
authors.affiliation: College of Material Science and Engineering of Huaqiao University, Quanzhou, 362021, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Lin
authors.affiliation: College of Material Science and Engineering of Huaqiao University, Quanzhou, 362021, China. Electronic address: congmingxiao@hqu.edu.cn.
authors.forename: Congming
authors.initials: C
authors.lastname: Xiao
mesh_terms: D000327:Adsorption; D000464:Alginates / Q000737:chemistry; D002118:Calcium / Q000737:chemistry; D002245:Carbon Dioxide / Q000737:chemistry* / Q000633:toxicity; D048271:Chitosan / Q000737:chemistry*; D057231:Climate Change; D006801:Humans; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000737:chemistry*; D007477:Ions; D012972:Sodium Hydroxide / Q000737:chemistry; D012995:Solubility; D014867:Water / Q000737:chemistry*
chemical_list: D000464:Alginates; D007477:Ions; D014867:Water; D002245:Carbon Dioxide; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D012972:Sodium Hydroxide; D048271:Chitosan; D002118:Calcium
keywords: Carbon dioxide; Entrapment; Tunable core-shell particles; Water-soluble chitosan