Layered CuNi-Cu_(2)O/NiAlO_(x) nanocatalyst for rapid conversion of p-nitrophenol to p-aminophenol  

作　　者：Lin Fu Wei Zhou Ming Wen Qingsheng Wu Weiying Li Dandan Wu Quanjing Zhu Jiaqi Ran Panpan Ren 

机构地区：[1]School of Chemical Science and Engineering,College of Environmental Science and Engineering,Key Laboratory of Yangtze River Water Environment,Ministry of Education,Shanghai Key Laboratory of Chemical Assessment and Sustainability,Tongji University,Shanghai,200092,China [2]School of Materials Science and Engineering,Shanghai Institute of Technology,Shanghai,201418,China

出　　处：《Nano Research》2021年第12期4616-4624,共9页纳米研究（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.21771140,51979194,and 51771138);We really appreciate the support by the state key laboratory of fine chemicals,Dalian University of Technology(No.KF 2001).

摘　　要：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-Cu_(2)O/NiAlO_(x) nanosheets have been constructed through hydrothermal synthesis followed by calcination and H_(2) reduction treatment process. The in-situ formed CuNi nanoalloys (NAs) and nano-Cu_(2)O 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-Cu_(2)O endows CuNi-Cu_(2)O/NiAlO_(x) 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.

关 键 词：layered CuNi-Cu_(2)O/NiAlO_(x) heterostructure catalyst P-NITROPHENOL P-AMINOPHENOL 

分 类 号：O643.36[理学—物理化学]