Norashikin Ahmad Zamanhuri

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Plant based biosynthesis of nanoparticles is a green chemistry methodology that has been claimed as a simple, cost effective and environmental friendly process, alternatively to the conventional methods (chemical and physical). Nanosilver (NS) synthesis by a biological route using Orthosiphon stamineus aqueous leaf extracts has been studied. The NSs were(More)
Metal nanostructures have unusual physicochemical properties and biological activities compared to their bulk parent materials. Thus in recent years a number of physical, chemical and biological techniques were applied for the development of metal nanoparticles (NP). In this paper we have reported the green synthesis of silver (AgNPs) and gold (AuNPs)(More)
Adsorption of Remazol Brilliant Blue R (RBBR) by rambutan peel (RP) was examined. The adsorption experiments were carried out under different conditions of initial concentration (25-500 mg/L), solution pH 2-12 and RP dose (0.05-1.2 g). The influence of these parameters on the adsorption capacity was studied using the batch process. RBBR adsorption uptake(More)
Bio-inspired silver nanoparticles were synthesized with the aid of a novel, non-toxic, eco-friendly biological material namely, pink guava waste extract (PGWE). The pink guava waste extract will act as the reducing agent in reduction process in order to reduce the aqueous salt solutions of the silver nitrate. Moreover, economically, this process will also(More)
Adsorption of methylene blue (MB) by NaOH-treated rambutan peel (N-RP) was examined. The adsorption experiments were carried out under different conditions of initial concentration (25-500 mg/L), solution pH 2-12 and N-RP dose (0.05-1.0 g). The influence of these parameters on the adsorption capacity was studied using the batch process. MB adsorption uptake(More)
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