二氧化铈泡沫状纳米结构：生物合成及其对有害染料的高效去除
CeO foam-like nanostructure: biosynthesis and their efficient removal of hazardous dye.
作者信息
Alinaghi Langari Aliakbar, Soltaninezhad Simin, Zafarnia Niloofar, Heidari Mohammadreza, Varma Rajender S, Ebrahimi Zahra, Azhdari Sara, Borhani Fariba, Khatami Mehrdad
机构信息
Noncommunicable Diseases Research Center, Bam University of Medical Sciences, Bam, Iran.
Student Research Committee, School of Public Health, Bam University of Medical Sciences, Bam, Iran.
出版信息
Bioprocess Biosyst Eng. 2021 Mar;44(3):517-523. doi: 10.1007/s00449-020-02464-9. Epub 2020 Nov 2.
In this study, CeO (cerium oxide) nanoparticles were synthesized using Pinus halepensis pollen and were characterized by field emission scanning electron microscopy (FESEM), powder X-ray diffraction (PXRD) and Raman spectroscopy. The results showed that the ensuing CeO nanostructures, ranging in size from 5 to 25 nm, had high porosity. Synthesized CeO showed the effective catalytic activity towards the photocatalytic removal of dyes. In this work, the photocatalytic activity to removal dye (methyl violet 2B), in the absence of UV radiation, using cerium dioxide nanoparticles (CeO-NP) was determined. In this research, four main factors such as effect on color, concentration and pH were examined and maximum %R was obtained about was 97% in 75 min in presence of 50 mg of hydrogen peroxide.
在本研究中，使用阿勒颇松花粉合成了氧化铈（CeO）纳米颗粒，并通过场发射扫描电子显微镜（FESEM）、粉末X射线衍射（PXRD）和拉曼光谱对其进行了表征。结果表明，随后生成的尺寸在5至25纳米之间的CeO纳米结构具有高孔隙率。合成的CeO对染料的光催化去除显示出有效的催化活性。在这项工作中，测定了在没有紫外线辐射的情况下，使用二氧化铈纳米颗粒（CeO-NP）去除染料（甲基紫2B）的光催化活性。在本研究中，考察了对颜色、浓度和pH等四个主要因素的影响，在存在50毫克过氧化氢的情况下，75分钟内获得的最大去除率约为97%。
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