Synthesis and utilization of a novel carbon nanotubes supported nanocables for the adsorption of dyes from aqueous solutions

摘要: Abstract Using multiwalled carbon nanotubes(MWCNTs) as mechanical support and glucose resource, a hydrothermal carbonization route was designed for the synthesis of MWCNTs@carbon nanocables with tunable diameter length. MWCNTs are firstly used templates formation carbon-rich composite nanocables, could be tailored through adjusting time or ratio glucose. Owing to abundant superficial oxygen-containing functional groups, porous surface remarkable reactivity, as-synthesized capable efficiently adsorbing cationic dye methylene blue (MB) crystal violet (CV). Furthermore, optimum adsorption conditions, kinetics, isotherms thermodynamics dyes were studied systematically. Additionally, maximum capacities calculated from data analysis (298.5 mg/g MB 228.3 mg/g CV) significant higher than those raw some other adsorbents reported previously, which provides strong evidence using adsorbent remove aqueous solutions.