【摘 要】
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In order to well arrange active sites and avoid byproducts,the reasonable structured carrier nanocatalyst plays a crucial role in high catalytic performance,but still remains a challenge.Herein,the layered CuNi-Cu2O/NiAlOx nanosheets have been constructed
【机 构】
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School of Chemical Science and Engineering,College of Environmental Science and Engineering,Key Labo
论文部分内容阅读
In order to well arrange active sites and avoid byproducts,the reasonable structured carrier nanocatalyst plays a crucial role in high catalytic performance,but still remains a challenge.Herein,the layered CuNi-Cu2O/NiAlOx nanosheets have been constructed through hydrothermal synthesis followed by calcination and H2 reduction treatment process.The in-situ formed CuNi nanoalloys(NAs) and nano-Cu2O were evenly distributed on the bilateral surface of layered NiAlOx nanosheets.Based on the planar structure of nanosheet,the synergy between catalytic active CuNi NAs and photocatalytic active nano-Cu2O endows CuNi-Cu2O/NiAlOx nanosheets with rapid conversion efficiency for catalyzing p-nitrophenol (p-NP,14 mg·L-1) to p-aminophenol (p-AP) in 32 s with the reaction rate constant k up to 0.1779 s-1,and no obvious performance decay can be observed even over 27 cycles.Moreover,high concentration of p-NP at 10 and 20 g.L-1 could be reduced to p-AP within 14 and 20 min,respectively.Such designed nanoalloy/bimetal-oxide heterostructure can provide a solution for rapid conversion of aminoaromatics from nitroaromatics wastewater even at a large concentration range.
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