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Adsorption of Heavy Metal Ions by Carbon‐Nanofibers‐Blended Carbon Nanotubes
Author(s) -
Sun Wanying,
Wu Haiming,
Xu Zhiwei,
Li Cuiyu,
Qian Xiaoming,
Chen Lei
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800203
Subject(s) - polyacrylonitrile , adsorption , carbon nanofiber , carbon nanotube , materials science , nanofiber , carbonization , chemical engineering , carbon fibers , metal ions in aqueous solution , specific surface area , porosity , metal , composite material , chemistry , organic chemistry , polymer , catalysis , composite number , engineering , metallurgy
By spinning different proportions of carbon nanotubes (CNTs) and polyacrylonitrile into filaments, discussing the structure of CNTs exposed on the surface of nanofibers after carbonization treatment at different temperatures, and the relationship between CNTs and pores in carbon nanofibers. Different pH, dosage, initial concentration of pollutants and adsorption time on the adsorption of Cr(VI) was studied on carbon nanofiber porous materials with carbon nanotubes. The results showed that the specific surface area of carbon nanofibers blended with CNTs increased to 37.627 m 2 /g and the pore volume reached 3.832cc/g. The porous adsorption material can reach the adsorption capacity of 25.17mgg −1 within 20 min. When the adsorption reached equilibrium, the adsorption capacity reached 76.62mgg −1 .