Terminalia Arjuna Bark Extract Mediated Size Controlled Synthesis of Polyshaped Gold Nanoparticles and Its Application in Catalysis
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2012, Vol 2, Issue 4
Abstract
The bark extract of Terminalia arjuna, a well known cardiac tonic, is rich in different types of plant secondary metabolites such as triterpenoids, saponines, tannins, flavanoids, etc. We have demonstrated the use of the bark extract for the synthesis of gold nanoparticles at room temperature under very mild conditions. The synthesis of the gold nanoparticles was complete in several minutes and no extra stabilizing or capping agents were necessary. The gold nanoparticles were characterized by HRTEM, AFM, Surface Plasmon Resonance Spectroscopy and X-Ray Diffraction studies. The synthesized colloidal gold nanoparticles were used as a catalyst for the sodium borohydride reduction of 4-nitrophenol to 4- aminophenol.
Authors and Affiliations
Majumdar Rakhi, Bag Gopal
Keywords
Related Articles
- EP ID EP125856
- DOI -
- Views 118
- Downloads 0
Study of thermodynamic Parameters of oxidation of 2–Hydroxy –1–Naphthalideneanil and its substituted anils by Potassium bromate in acidic medium
The sodium and potassium bromate are stable and easily stored oxidants. They easily oxidize Schiff base and its substituted anils in aqueous acetic acid. The kinetics of oxidation of the Schiff base and its substituted a...
Environmental Impacts of Product Labelling on Consumers Shopping and Wastes Disposal Behaviour in Dodoma Urban, Tanzania
Proper presentation of environmental messages on product labels is very useful in bringing positive environmental impacts of the product among environmental sensitive consumers. This paper presents the results of a resea...
Groundwater and Its assessment for Irrigation purpose in Hanmakonda Area, Warangal District, Andhra Pradesh, India[/b] [b] [/b]
Groundwater is one of the most valuable natural resources, which is an immensely important and dependable source of water supply in all climatic regions over the world. A total of 18 groundwater samples were col...
Evaluation of Proximate and Mineral Composition of Indigenous and Exotic Mushroom Propagated In Forestry Research Institute of Nigeria
This trial evaluated proximate and mineral composition of one indigenous mushroom, Pleurotus tuber regium and two non indigenous species, Pleurotus sajor (Fries) and Pleurotus florida (kummer). Samples of each mushro...
Plain Black Tea Quality Parameters of Purple Leaf Coloured Tea Clones in Kenya
A study was conducted at the Tea Research Foundation of Kenya (TRFK) to investigate the plain black tea quality parameters of 12 accessions of purple leaf coloured tea clones in Kenya. The clones were developed in line w...