使用FeO/WO/FeWO纳米材料对甲基橙光催化降解的光谱研究。
Spectroscopic investigation on photocatalytic degradation of methyl orange using FeO/WO/FeWO nanomaterials.
作者信息
Narendhran S, Shakila P Baby, Manikandan M, Vinoth V, Rajiv P
机构信息
Department of Biotechnology, Sri Krishna Arts and Science College, Kuniamuthur, Coimbatore 641 008, Tamil Nadu, India.
Department of Biotechnology, Karpagam Academy of Higher Education, Coimbatore-21, Tamilnadu, India.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2020 May 5;232:118164. doi: 10.1016/j.saa.2020.118164. Epub 2020 Feb 19.
In this study, iron oxide (FeO), tungsten oxide (WO) and iron-tungstate oxide (FeWO) nanoparticles (NPs) were synthesized by simple precipitation, acid precipitation, and hydrothermal method respectively. All the spectroscopic analysis reveals that as-synthesized NPs are crystalline with a z-average size of 342, 313 and 373 d.nm respectively. The element compositions, shape and size of the NPs were identified with the help of SEM with EDX analysis. FTIR analysis concluded that the presence of functional groups on the surface of NPs and which responsible for capping and formation of NPs. Besides, the as-synthesized NPs have been used as a photocatalyst for the degradation of Methyl Orange (MO) dye under visible irradiation. FeWO NPs (98%) show more effective in the degradation of MO as compared to other NPs. Moreover, the degraded MO and its by-products were used to assess their toxicity on Vigna radiata and RAW 264.7 cell line and which were confirmed that degraded by-products were non-hazardous.
在本研究中，分别通过简单沉淀法、酸沉淀法和水热法合成了氧化铁（FeO）、氧化钨（WO）和钨酸铁氧化物（FeWO）纳米颗粒（NPs）。所有光谱分析表明，合成的纳米颗粒为晶体，z平均尺寸分别为342、313和373 d.nm。借助扫描电子显微镜（SEM）和能谱分析（EDX）确定了纳米颗粒的元素组成、形状和尺寸。傅里叶变换红外光谱（FTIR）分析得出，纳米颗粒表面存在官能团，这些官能团负责纳米颗粒的包覆和形成。此外，合成的纳米颗粒已被用作光催化剂，用于在可见光照射下降解甲基橙（MO）染料。与其他纳米颗粒相比，FeWO纳米颗粒（98%）在MO降解方面表现出更高的效率。此外，对降解的MO及其副产物进行了评估，以确定它们对绿豆和RAW 264.7细胞系的毒性，结果证实降解副产物无危害。
Zotero 插件