Investigation of structural, optical, catalytic, fluorescence studies of eco-friendly synthesized Bi2S3 nanostructures. (February 2017)

• Record Type: Journal Article
• Authors: Ayodhya, Dasari; Veerabhadram, Guttena
• Is Part Of: Superlattices and microstructures. Volume 102(2017)
• Page Start: 103
• Page End: 118
• Publication Date: 2017-02
• Subjects: Bi2S3 NSs -- Ribonucleosides -- Catalytic activity -- SO dye -- Fluorescence study; Superlattices as materials -- Periodicals; Microstructure -- Periodicals; Semiconductors -- Periodicals; Superréseaux -- Périodiques; Microstructure (Physique) -- Périodiques; Semiconducteurs -- Périodiques; 621.38152
• DOI: 10.1016/j.spmi.2016.12.027
• Languages: English
• ISSNs: 0749-6036

Abstract

Abstract: A simple solution phase method has been developed for the synthesis of ribonucleosides capped Bi2 S3 nanostructures (NSs) with an average diameter of 15 nm and length of below 100 nm. Transmission electron microscopy (TEM), selected-area electron diffraction (SAED), and X-ray diffraction (XRD) studies revealed that these NSs were grown from a colloidal dispersion of amorphous Bi2 S3 particles, which was first formed through a thermal reaction at a temperature of 60 °C. The phase and structure of the Bi2 S3 NSs have been identified by using X-ray powder diffraction. The crystal structure had orthorhombic structure. The surface properties and morphology have been investigated using scanning electron microscope (SEM) technique. The N2 sorption–desorption experiments showed that the surface area of the NSs was 6.35 m 2 g −1 by Brunauer–Emmett–Teller (BET). The experiments showed that the Bi2 S3 NSs prepared in the present work could be used as catalyst for the reduction of SO dye using a reducing agent. It was found that the as-obtained Bi2 S3 NSs contributed to the best catalytic activity. Photoluminescence experiments showed a quenching of the Bi2 S3 fluorescence with increasingl -cysteine (Cys) content in the solution. Furthermore, the proposed NSs as sensor were employed for the determination of metal ions with satisfactory results. Graphical abstract: Highlights: Green synthesized Bi2 S3 NSs is a low cost, simple and non-toxic method. The synthesized Bi2 S3 NSs are of average size of 15 nm and length of below 100 nm. Catalytic degradation of SO dye is studied by employing NaBH4 and Bi2 S3 NSs. Fluorescence quenching and binding constant of Bi2 S3 NSs by cysteine was determined. The synthesized Bi2 S3 NSs were used as fluorescent sensors for metal ion detection.