Facile Synthesis of Well‐Dispersed Silver Nanoparticles on Hierarchical Flower‐like Ni3Si2O5(OH)4 with a High Catalytic Activity towards 4‐Nitrophenol Reduction |
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| Authors: | Renxi Jin Prof Yan Xing Dr Xiaodan Yu Shaolin Sun Donghui Yu Fangfang Wang Wenbin Wu Dr Shuyan Song |
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| Institution: | 1. Department of Chemistry, Northeast Normal University, Changchun 130024 (P.R. China), Fax: (+86)?431‐85099108;2. State Key Laboratory of Rare Earth Resource Utilizations, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130012 (P.R. China) |
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| Abstract: | Layered nickel silicate nanoflowers (NSFs) with a hierarchical nanostructure have been successfully fabricated by a template‐free solvothermal method. The as‐prepared nanoflowers were composed of many interconnected edge‐curving lamellae with a thickness of about 15 nm and had a high specific surface area (279 m2 g?1) and large pore volume (0.67 cm3 g?1). The highly dispersed small silver nanoparticles (AgNPs) were immobilized on the surface of NSFs through the in situ reduction of Ag+ by Sn2+. The AgNP/NSF nanocomposites showed a high performance in the catalytic reduction of 4‐nitrophenol. In particular, there was no visible decrease in the catalytic activity of the reused catalysts even after being recycled four times. The as‐prepared AgNP/NSF nanocomposites might be an excellent catalyst owing to their availability, formability, chemical and thermal stability, and high specific surface area. |
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| Keywords: | crystal engineering nanostructures silver solvothermal synthesis supported catalysts |
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