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Core–Shell Novel Composite Metal Nanoparticles for Hydrogenation and Dye Degradation Applications
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-02-21 , DOI: 10.1021/acs.iecr.8b06094 Sameer Kulkarni 1 , Mangesh Jadhav , Prasad Raikar 2 , Shantanu Raikar , Uday Raikar
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2019-02-21 , DOI: 10.1021/acs.iecr.8b06094 Sameer Kulkarni 1 , Mangesh Jadhav , Prasad Raikar 2 , Shantanu Raikar , Uday Raikar
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Biofriendly green sustainable nanocatalyst Au@NiAg with high catalytic activity was prepared for hydrogenation and degradation of aquatic contaminants such as 4-nitrophenol (4-NP), Methyl Orange (MO), and Orange G (OG). Synthesized Au@Ni nanoparticles have a triangular shape while the Au@NiAg nanoparticles are of spherical shape and of smaller size, attributed to the digestive ripening of the Au@Ni where silver ion was deposited on the host Au@Ni nanoparticle surface. The Au@NiAg nanoparticles catalyzed hydrogenation of 4-nitrophenol and reduction of organic dyes follow Langmuir–Hinshelwood kinetics. The Au@NiAg nanoparticles have shown excellent catalytic activity with activity factors of 3167s-1g-1, 5476s-1g-1, and 3810 s–1 g–1 for 4-NP, MO, and OG, respectively. Silver nanoparticles act as cocatalyst for overall improvement of the performance of Au@NiAg. Above all the involvement of leaf extract mediated synthesis will open up an area to the production of sustainable, ecofriendlym and nontoxic core–shell nanocatalysts with exemplary catalytic activity.
中文翻译：
核-壳新型复合金属纳米粒子的加氢和染料降解应用
制备了具有高催化活性的生物友好的绿色可持续纳米催化剂Au @ NiAg，用于氢化和降解4-硝基苯酚（4-NP），甲基橙（MO）和橙G（OG）等水生污染物。合成的Au @ Ni纳米颗粒具有三角形形状，而Au @ NiAg纳米颗粒具有球形形状且尺寸较小，这归因于Au @ Ni的消化成熟，其中银离子沉积在主体Au @ Ni纳米颗粒表面上。Au @ NiAg纳米颗粒催化4-硝基苯酚的加氢反应和有机染料的还原反应遵循Langmuir-Hinshelwood动力学。在Au @镍银纳米粒子已显示优异的催化活性与3167s的活动性因数-1克-1，5476s -1克-1，和3810小号–1 g –1分别用于4-NP，MO和OG。银纳米颗粒充当助催化剂，可整体改善Au @ NiAg的性能。最重要的是，叶提取物介导的合成的参与将为生产具有示范性催化活性的可持续，生态友好和无毒的核壳纳米催化剂开辟一个领域。
更新日期：2019-02-22
中文翻译：
核-壳新型复合金属纳米粒子的加氢和染料降解应用
制备了具有高催化活性的生物友好的绿色可持续纳米催化剂Au @ NiAg，用于氢化和降解4-硝基苯酚（4-NP），甲基橙（MO）和橙G（OG）等水生污染物。合成的Au @ Ni纳米颗粒具有三角形形状，而Au @ NiAg纳米颗粒具有球形形状且尺寸较小，这归因于Au @ Ni的消化成熟，其中银离子沉积在主体Au @ Ni纳米颗粒表面上。Au @ NiAg纳米颗粒催化4-硝基苯酚的加氢反应和有机染料的还原反应遵循Langmuir-Hinshelwood动力学。在Au @镍银纳米粒子已显示优异的催化活性与3167s的活动性因数-1克-1，5476s -1克-1，和3810小号–1 g –1分别用于4-NP，MO和OG。银纳米颗粒充当助催化剂，可整体改善Au @ NiAg的性能。最重要的是，叶提取物介导的合成的参与将为生产具有示范性催化活性的可持续，生态友好和无毒的核壳纳米催化剂开辟一个领域。
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