Abstract
Green chemistry methods for production of nanoparticles have many advantages, such as ease of use, which makes the methods desirable and economically viable. The aim of the present work was to green synthesise silver nanoparticles (SNPs) using aqueous tangerine peel extract in different ratios (2:1, 1:1, 1:2). The formed SNPs were characterised using ultraviolet-visible (UV-Vis) spectrophotometry, and transmission electron microscopy (TEM). The UV-Vis spectra showed that the highest absorbance was observed when the ratio of peel tangerine extract to silver nitrate solution was 1:2. The transmission electron micrographs showed the formation of poly dispersed nanoparticles. It was found that the average diameter of the nanoparticles was 30.29 ± 5.1 nm, 16.68 ± 5.7 nm, and 25.85 ± 8.4 nm, using a tangerine peel solution and silver nitrate solution ratio of 2:1, 1:1, and 1:2, respectively. The formed SNPs were evaluated as catalysts for methyl orange dye degradation, and the results confirmed that SNPs can speed up the degradation of the dye.
Highlights
Nanomaterials have been receiving attention due to their unique physical and chemical properties compared withHow to cite this paper: Alzahrani, E. (2015) Eco-Friendly Production of Silver Nanoparticles from Peel of Tangerine for Degradation of Dye
It is known that the reduction of silver ion (Ag+) into silver (Ag) nanoparticles during exposure to the plant extracts commonly followed by colour change and the formation of silver nanoparticles (SNPs) was visually observed [3]; the colour of the mixtures were observed
It was observed that the colour of the mixture changed immediately after mixing the silver nitrate solution with the extract solution, which confirmed that aqueous silver ions can be reduced by aqueous extract of tangerine peel to form stable SNPs in water
Summary
Nanomaterials have been receiving attention due to their unique physical and chemical properties compared withHow to cite this paper: Alzahrani, E. (2015) Eco-Friendly Production of Silver Nanoparticles from Peel of Tangerine for Degradation of Dye. Alzahrani their larger-size counterparts [1]-[3]. The noble metal nanoparticles have been fabricated by chemical reduction with stabilising reagents (NaBH4, citrate, or ascorbate) [8], thermal decomposition [9], photo reduction in reverse micelles [10], and radiation chemical reduction [11]. Many of these approaches are expensive, consume a lot of energy, result in low yields, and the chemicals used in their production are toxic and hazardous [12]
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