首页|Enhanced degradation of polyvinyl alcohol over a Cu~0-carbon@γ-Al2O3 composite through heterogeneous Fenton-like reactions:Preparation,mechanism,and applications
Enhanced degradation of polyvinyl alcohol over a Cu~0-carbon@γ-Al2O3 composite through heterogeneous Fenton-like reactions:Preparation,mechanism,and applications
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NSTL
In this study,we used cotton as the source of the carbon layer and prepared Cu°-carbon@Y-Al2O3 composites by spray drying and calcination method.Cu~0-carbon@Y-Al2O3 composites were prepared to degrade polyvinyl alcohol(PVA),Reactive Red X-3B,and rhodamine B.The SEM and TEM analysis reveal the Cu° particles loaded on the carbon layers and y-Al2O3 were the active sites for the catalytic reaction.The electron paramagnetic resonance(EPR)analysis and quenching experiments indicated the generation of·OH,~1O_2,and HO2·during the catalytic reaction.The catalytic reactions maintained a high catalytic efficiency of more than 82% when the Cu°-carbon@γ-Al2O3 composites were reused 10 times.This study will promote wide applications of Cu° as a functional material and provide new ideas for broadening the application field of cotton.Meanwhile,this study also demonstrated that Cu°-carbon@γ-Al2O3 is a promising composite material for advanced oxidation technology.
NSTL
