还原剂
4-硝基苯酚
催化作用
罗丹明B
X射线光电子能谱
纳米复合材料
傅里叶变换红外光谱
材料科学
化学
化学工程
核化学
光催化
有机化学
纳米技术
工程类
作者
Alireza Taghizadeh,Kurosh Rad‐Moghadam
标识
DOI:10.1016/j.jclepro.2018.07.042
摘要
A facile and rapid biosynthesis of copper nanoparticles (CuNPs) is presented here. This protocol also delivers the CuNPs immobilized on the surface of waste pistachio shell (PS), as an environmentally benign support, using pistachio hull extract (PHE), as a reducing and stabilizing agent. The biosynthesis was realized through a very simple and inexpensive one-pot procedure without employing any toxic reductants or capping agents. The biosynthesized CuNPs and copper/pistachio shell nanocomposite (Cu/PS NC) were characterized by UV–Vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDS), and transform electron microscopy (TEM). The CuNPs and Cu/PS NC were successfully employed as efficient catalysts in the reduction of 4-nitrophenol (4-NP), methylene blue (MB), rhodamine B (RhB) and methyl orange (MO) at ambient temperature. Cu/PS NC has shown to be a highly effective and easily recyclable catalyst, as it can be reused repeatedly without appreciable decrease in its catalytic activity. In view of these properties, Cu/PS NC was employed as the packing material of a flow reactor for running the reduction of 4-NP into 4-AP expediently in a continuous flow manner. The flow reactor was successfully tested for simultaneous reductive degradation of the dyes contaminated the real waste-water samples collected from the drains of different local textile and drug industries. The methods presented here are environmentally friendly processes and highly beneficial to address the industrial requirements.
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