期刊
GREEN PROCESSING AND SYNTHESIS
卷 7, 期 1, 页码 30-37出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/gps-2016-0236
关键词
Bridelia retusa; dye degradation; green synthesis; Rhodamine B; silver nanoparticles
An environmentally benign method to synthesize silver nanoparticles (SNPs) using the leaf extract of Bridelia retusa was developed. The UV-Vis absorption spectrum of the synthesized SNPs displayed a surface plasmon peak at 420 nm. Scanning electron microscopy (SEM) revealed the irregular shaped nanoparticles, and energy dispersive X-ray (EDX) ascertained the presence of metallic silver by showing a strong signal at 3 eV. The crystalline structure of metallic silver was confirmed by X-ray diffraction (XRD). The mean size of the SNPs was calculated as 16.21 nm. Fourier infrared (FT-IR) spectroscopic studies displayed specific bands for various functional groups and affirmed the function of reduction and stabilization of SNPs. The stability was endorsed by the zeta potential value of -18.1 mV. The results evidenced that this leaf extract-mediated synthesis method is eco-friendly, rapid, and cheap. The catalytic power of the SNPs was investigated for Rhodamine B dye degradation. The SNPs completely degraded Rhodamine B within 9 min; thus, the dye degradation process was very rapid. The pseudo-first order degradation constant was found out to be 0.1323 min(-1). This paves the way for the future development of novel nano-catalysts to reduce environmental pollution.
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