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绿色合成、通过各种生物提取物对金和银纳米颗粒进行表征及其在石墨电极修饰中的可用性。

Green synthesis, characterisation of Au and Ag nanoparticles by various bioextracts and their usability at graphite electrode modification.

作者信息

Yilmaz Arslan Emine, Biçer Ender, Sekmen Elif, Çakir Semiha

机构信息

Republic of Turkey Ministry of Health, Turkish Medicines and Medical Devices Agency, Ankara, Turkey.

Department of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayıs University, Samsun, Turkey.

出版信息

Turk J Chem. 2022 Apr 19;46(4):1253-1268. doi: 10.55730/1300-0527.3432. eCollection 2022.

DOI:10.55730/1300-0527.3432
PMID:37538772
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10395742/
Abstract

In this study, the biosynthesis of Au and Ag nanoparticles (AuNp and AgNp) with a green chemistry approach was performed by using bioextracts of various fruits and vegetables ( (LE), (CS), (MD), (CP), (AVR), (PC), (OVB)). In the determination of optimum experimental conditions, the parameters such as the type and concentration of bioextract, concentration of metal ion solutions, the ratio of metal ion solution to bioextract, pH, reaction time and temperature were found to be significant. The characterisation of AuNp and AgNp synthesized by providing the most appropriate experimental conditions was performed by UV-Vis., SEM, EDX, XPS and FTIR techniques. The characterisation study showed that, AuNp and AgNp were successfully synthesized and detailed information was obtained about their stabilities, sizes, homogeneities etc. In the final step, the usability of the green synthesized nanoparticles in the modification of pencil graphite electrodes (PGE) was investigated. Electrochemical characterisation of AuNp/GE and AgNp/GE electrodes was performed using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. The obtained results and calculated electrochemical parameters showed that these modified electrodes have better conductivity, electron transfer rate and electrocatalytic activity.

摘要

在本研究中，采用绿色化学方法，利用各种水果和蔬菜的生物提取物（（LE）、（CS）、（MD）、（CP）、（AVR）、（PC）、（OVB））进行金和银纳米颗粒（AuNp和AgNp）的生物合成。在确定最佳实验条件时，发现生物提取物的类型和浓度、金属离子溶液的浓度、金属离子溶液与生物提取物的比例、pH值、反应时间和温度等参数具有重要意义。通过紫外可见光谱（UV-Vis.）、扫描电子显微镜（SEM）、能谱仪（EDX）、X射线光电子能谱（XPS）和傅里叶变换红外光谱（FTIR）技术对在最适宜实验条件下合成的AuNp和AgNp进行了表征。表征研究表明，成功合成了AuNp和AgNp，并获得了有关其稳定性、尺寸、均匀性等的详细信息。在最后一步中，研究了绿色合成纳米颗粒在铅笔石墨电极（PGE）修饰中的可用性。使用循环伏安法（CV）和电化学阻抗谱（EIS）技术对AuNp/GE和AgNp/GE电极进行了电化学表征。获得的结果和计算出的电化学参数表明，这些修饰电极具有更好的导电性、电子转移速率和电催化活性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/a50123bfe19f/turkjchem-46-4-1253f17.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/a50123bfe19f/turkjchem-46-4-1253f17.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/9b3790957201/turkjchem-46-4-1253f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/b8460489ca2a/turkjchem-46-4-1253f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/320004f90ac8/turkjchem-46-4-1253f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/1ab8471aec51/turkjchem-46-4-1253f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/a018d22011ef/turkjchem-46-4-1253f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/ef42bfa40d66/turkjchem-46-4-1253f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/1a607ccf4273/turkjchem-46-4-1253f13.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/bb05d23f9f3b/turkjchem-46-4-1253f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/e9ea7c7b9e05/turkjchem-46-4-1253f15.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/abb9/10395742/fdbdbfd1aa78/turkjchem-46-4-1253f16.jpg
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