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首页> 外文期刊>Journal of Molecular Liquids >Enhanced photocatalytic and electrocatalytic applications of green synthesized silver nanoparticles
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Enhanced photocatalytic and electrocatalytic applications of green synthesized silver nanoparticles

机译：绿色合成银纳米粒子的光催化和电催化应用的增强

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A green facile, cheap, nontoxic and eco-friendly procedure was developed for the synthesis of silver nanoparticle (AgNPs) using extract of Cirsium japonicum that is useful than commonly used physiochemical methods. The extract of C. japonicum was used as reducing and stabilizing agent The formation of AgNPs was confirmed by UV/vis spectroscopic technique. The formation of AgNPs was studied at different range of temperature and concentration. Size and distribution was confirmed by high resolution transmission electron microscopy (HRTEM) and were found to be small (2-8 nm), spherical and with no aggregation. X-ray diffraction (XRD) helped to confirm the crystalline nature AgNPs. For elemental composition of the material, EDX was used. FIR spectroscopy was used to detect organic compounds capping AgNPs. The effect of various experimental conditions, size and shape and catalytic amount were studied on the photodegradation of bromo phenyl blue. AgNPs are found significant photocatalysts and degraded 98% bromo phenyl blue in 12 min. From the strong reductive properties it is clear that AgNPs can be used in water purification and converting some organic hazardous to nonhazardous materials, Furthermore the AgNPs adapted electrode (Ag/GC) exhibited tremendous electrocatalytic properties to reduce phenolic compounds like hydroquinone. Cyclic voltammetric analysis of AgNPs was studied in acetate buffer solution. The result of modified AgNPs and standard glassy carbon electrode (GC) were compared. The conductivity of AgNPs was studied in 0.15 M acetate buffer solution. The synthesized AgNPs are stable and analogous in size. The synthesized AgNPs showed potential activities in the field of electrochemistry. (C) 2016 Elsevier B.V. All rights reserved.
机译：开发了一种绿色简便，便宜，无毒且环保的方法，该方法可使用日本皮草提取物来合成银纳米粒子（AgNP），该提取物比常用的物理化学方法有用。日本血吸虫的提取物用作还原剂和稳定剂。通过紫外/可见光谱技术确认了AgNP的形成。在不同温度和浓度范围内研究了AgNP的形成。尺寸和分布通过高分辨率透射电子显微镜（HRTEM）确认，发现尺寸小（2-8 nm），球形，无聚集。 X射线衍射（XRD）有助于确认AgNPs的晶体性质。对于材料的元素组成，使用EDX。 FIR光谱用于检测覆盖AgNP的有机化合物。研究了各种实验条件，大小，形状和催化量对溴苯基蓝光降解的影响。 AgNP被发现是重要的光催化剂，并在12分钟内降解了98％的溴苯蓝。从强大的还原性能来看，很明显AgNPs可用于水净化并将某些有机有害物质转化为非有害物质。此外，AgNPs适配电极（Ag / GC）表现出巨大的电催化性能，可还原酚类化合物（如对苯二酚）。在乙酸盐缓冲溶液中研究了AgNPs的循环伏安分析。比较了修饰的AgNPs和标准玻碳电极（GC）的结果。在0.15 M醋酸盐缓冲溶液中研究了AgNPs的电导率。合成的AgNP稳定且大小相似。合成的AgNPs在电化学领域显示出潜在的活性。 （C）2016 Elsevier B.V.保留所有权利。

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