期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 140, 期 8, 页码 -出版社
WILEY
DOI: 10.1002/app.53513
关键词
carbon spheres; colloidal particles; oil-in-water emulsions separation; self-assembly
A new strategy was developed to prepare nanoscale porous carbon spheres (PCSs) using cross-linked chitosan/poly(gamma-glutamic acid) colloidal particles as precursor. The prepared PCSs exhibited excellent separation performance for oil-in-water emulsions.
A new strategy was developed to prepare nanoscale porous carbon spheres (PCSs) using cross-linked chitosan/poly(gamma-glutamic acid) colloidal particles as precursor. The fabricated cross-linked chitosan/poly(gamma-glutamic acid) colloidal particles (Ca2+/CS/gamma-PGA CPs) were prepared from the self-assembly of negatively charged poly(gamma-glutamic acid) and positively charged chitosan, and the cross-linking of Ca2+ in aqueous solution, via the electrostatic interaction. After lyophilization, the Ca2+/CS/gamma-PGA CPs power was obtained, followed by carbonization in a tube furnace under N-2 atmosphere. Finally, the products were washed by hydrochloric acid, obtaining PCSs with hierarchical pore structure and super-hydrophobicity. The prepared PCSs exhibited excellent separation performance for oil-in-water emulsions.
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