Optical and Crystal Structure Properties of ZnO Nanoparticle Synthesized through Biosynthesis Method for Photocatalysis Application

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-02-01 DOI:10.22146/ijc.84796

S. W. Suciyati, Posman Manurung, Junaidi Junaidi, Rudy Situmeang

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Abstract

In this study, zinc oxide nanoparticles (ZnO NPs) were synthesized from zinc nitrate hexahydrate precursor and mango leaf extract (MLE). The purpose of this research was to investigate the crystal structure and optical properties exhibited by ZnO NPs for photocatalytic applications. ZnO NPs produced from various concentrations of sodium hydroxide (NaOH) and the addition of MLE during the synthesis stage demonstrated intriguing physical structure and optical properties. XRD characterization results revealed the attainment of a pure ZnO phase with a high crystallinity degree in all samples. Biosynthesis with MLE unveiled minor peaks corresponding to the cellulose phase. The achieved crystallite size ranged from 15–28 nm. The FTIR patterns detected in the wavenumber range of 600–4000 cm−1 indicated successful crystallization of all ZnO NPs samples. The band gap energy for each sample (ZnO-A to ZnO-E) is indicated to be in the range of 3.25, 3.25, 3.26, 3.31, and 3.17 eV, as demonstrated by the Tauc relation. The effect of MB degradation by the ZnO-E photocatalyst is revealed by the photodegradation of 96.46%.

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通过生物合成法合成的 ZnO 纳米粒子在光催化应用中的光学和晶体结构特性

本研究利用六水硝酸锌前驱体和芒果叶提取物（MLE）合成了氧化锌纳米粒子（ZnO NPs）。本研究的目的是研究 ZnO NPs 在光催化应用中的晶体结构和光学特性。由不同浓度的氢氧化钠（NaOH）和在合成阶段添加的芒果叶提取物制备的氧化锌氮氧化物表现出了引人入胜的物理结构和光学特性。XRD 表征结果表明，所有样品都获得了高结晶度的纯氧化锌相。使用 MLE 进行生物合成时，会出现与纤维素相相对应的小峰值。获得的晶粒大小在 15-28 纳米之间。在 600-4000 cm-1 波长范围内检测到的傅立叶变换红外光谱图表明，所有 ZnO NPs 样品都成功结晶。根据陶克关系，每个样品（ZnO-A 至 ZnO-E）的带隙能分别为 3.25、3.25、3.26、3.31 和 3.17 eV。ZnO-E 光催化剂对甲基溴的光降解率为 96.46%，显示了其降解效果。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.