Abstract
Preparation of novel C–Ni/Al2O3 composite from the catalytic reforming of volatiles from co-pyrolysis of lignin and polyethylene and its adsorption application.
Highlights
A novel and eco-friendly C–Ni/Al2O3 composite was prepared through Ni/Al2O3 coking during the catalytic reforming of volatiles from co-pyrolysis of lignin and polyethylene
C–Ni/Al2O3 composites derived from the catalytic reforming of volatiles from co-pyrolysis of lignin and polyethylene are used as green adsorbents for the removal of heavy metal ions (Pb(II) & Cr(VI)) and dyes (RhB & methyl orange (MO)) from aqueous solutions
The results show that the composition, morphological structure and thermal stability of the carbon deposited on Ni/Al2O3 is significantly influenced by Ni loading in Ni/Al2O3 and the catalytic reforming temperature
Summary
A novel and eco-friendly C–Ni/Al2O3 composite was prepared through Ni/Al2O3 coking during the catalytic reforming of volatiles from co-pyrolysis of lignin and polyethylene. Carbon composites have been investigated to overcome the defects of pure carbon materials by modifying the carbon materials through oxidization, functional group grafting, and compositing with inorganic substances.[15,16] For example, Chen et al found that carbon nanotube composites decorated with Ca/Al layered double hydroxide exhibited a high adsorption capacity for U(VI), and the maximum adsorption capacity for U(VI) onto these composites was four times higher than that onto bare carbon nanotubes.[17] In the study of Yari Moghaddam et al, a graphene oxide/almond shell composite fabricated by a freeze-drying method showed higher effectiveness than a pure graphene oxide in the removal of cadmium(II) and nickel(II).[18] a complex synthesis process is often needed for the preparation of an ideal carbon composite, which produces many by-products and requires additional costs
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