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Photo-irradiation induced green synthesis of highly stable silver nanoparticles using durian rind biomass: effects of light intensity, exposure time and pH on silver nanoparticles formation
Journal of Physics Communications ( IF 1.1 ) Pub Date : 2020-09-12 , DOI: 10.1088/2399-6528/abb4b5
Fueangfahkan Chutrakulwong 1 , Kheamrutai Thamaphat 1 , Pichet Limsuwan 2
Affiliation  

The purpose of this work is to single-pot biosynthesize silver nanoparticles (AgNPs) using the extract from mesocarp and endocarp of durian rind under photo-irradiation. Without adding chemical substance, flavonoids, phenolic compounds and glucose dissolved in the extract served as the reducing agent; while proteins acted as the particle-stabilizing agent in the formation of AgNPs. The synthesis parameters i.e. light intensity, exposure duration, and pH value directly associated with the nucleation, growth, and aggregation of nanoparticles. The amount of synthesized AgNPs increased with increasing visible light intensity and exposure duration, while the size and stability of nanoparticles were decided by pH value adjustment. The size of synthesized AgNPs decreased when the pH value increased, on the contrary, the size increased when the pH value decreased. Under the optimized synthesis conditions (visible light intensity of 13,430 lx and pH value of 8.5), approximately 99% of silver ions was reduced to the spherical AgNPs with the mean diameter of 11.43.2 nm within 5 min. The AgNPs remained uniformly dispersed in de-ionized water at no less than six months. The present environmental-friendly method is facile, rapid, and cost effective for the large scale preparation of AgNPs. The obtained AgNPs synthesized under optimum conditions could be applied for use in various fields such as antimicrobial activity, biosensors, and catalysis in the near future.



中文翻译:

使用榴莲皮生物质光辐射诱导绿色合成高度稳定的银纳米颗粒:光强度、曝光时间和 pH 值对银纳米颗粒形成的影响

这项工作的目的是在光照射下使用榴莲中果皮和内果皮的提取物单锅生物合成银纳米粒子 (AgNPs)。不添加化学物质,提取物中溶解的黄酮类化合物、酚类化合物和葡萄糖作为还原剂;而蛋白质在 AgNPs 的形成中充当粒子稳定剂。合成参数,即光强度、暴露时间和 pH 值与纳米颗粒的成核、生长和聚集直接相关。合成的AgNPs的量随着可见光强度和曝光时间的增加而增加,而纳米颗粒的尺寸和稳定性由pH值的调节决定。当 pH 值升高时,合成的 AgNPs 的尺寸减小,相反,pH 值降低时尺寸增大。在优化的合成条件下(可见光强度为 13,430 lx,pH 值为 8.5),大约 99% 的银离子在 5 分钟内被还原为平均直径为 11.43.2 nm 的球形 AgNPs。AgNPs 保持均匀分散在去离子水中不少于六个月。目前的环境友好方法对于 AgNPs 的大规模制备具有简便、快速和成本效益。在不久的将来,在最佳条件下合成的 AgNPs 可用于抗菌活性、生物传感器和催化等各个领域。5 分钟内为 43.2 nm。AgNPs 保持均匀分散在去离子水中不少于六个月。目前的环境友好方法对于 AgNPs 的大规模制备具有简便、快速和成本效益。在不久的将来,在最佳条件下合成的 AgNPs 可用于抗菌活性、生物传感器和催化等各个领域。5 分钟内为 43.2 nm。AgNPs 保持均匀分散在去离子水中不少于六个月。目前的环境友好方法对于 AgNPs 的大规模制备具有简便、快速和成本效益。在不久的将来,在最佳条件下合成的 AgNPs 可用于抗菌活性、生物传感器和催化等各个领域。

更新日期:2020-09-12
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