Photocatalytic properties of amine functionalized Bi2Sn2O7/rGO nanocomposites

• Published in: The Journal of physics and chemistry of solids Vol. 118; pp. 21 - 31
• Main Authors: Gnanamoorthy, G., Muthamizh, S., Sureshbabu, K., Munusamy, S., Padmanaban, A., Kaaviya, A., Nagarajan, R., Stephen, A., Narayanan, V.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.07.2018
• Subjects: AF-Bi2Sn2O7; AF-Bi2Sn2O7/rGO nanocomposites; Bi2Sn2O7; In-situ method; Photocatalytic degradation; Thermal decomposition method; In-situ method; AF-Bi2Sn2O7/rGO nanocomposites; Photocatalytic degradation; AF-Bi2Sn2O7; Thermal decomposition method; Bi2Sn2O7
• ISSN: 0022-3697; 1879-2553
• DOI: 10.1016/j.jpcs.2018.02.042

The binary metal oxide nanomaterials are having applications in various fields like sensors, optics, electrocatalyst and photocatalyst so on. Bi2Sn2O7 with pyrochlore structure is having low band gap energy; hence it is utilized in battery storage and gas sensor applications. In the present work, we have made an attempt to synthesis amine-functionalized Bi2Sn2O7/rGO nanocomposites by a thermal decomposition method and in-situ method; the synthesized nanocomposites were confirmed by XRD, FT-IR and Raman analysis. The AF-Bi2Sn2O7/rGO nanocomposites morphology was confirmed by FE-SEM along with EDX spectroscopy, we obtained different flowers and nest-like morphology. The pure and composite material band gap energy is decreases from 2.6 eV to 1.6 eV. All three nanomaterials Bi2Sn2O7, AF-Bi2Sn2O7, AF-Bi2Sn2O7/rGO nanocomposites (AF–amine functionalized) were utilized for the photocatalytic degradation of methylene blue dye under visible light irradiation. AF-Bi2Sn2O7/rGO nanocomposite showed an excellent photocatalytic activity than pure Bi2Sn2O7 and AF- Bi2Sn2O7. [Display omitted] •Amine-functionalized Bi2Sn2O7/rGO nanocomposites were synthesized by a thermal decomposition and in-situ method.•The abougainvillea glabra and weaver bird nest-like morphology was obtained.•AF-Bi2Sn2O7/rGO composite was investigated by methylene blue dye under visible light illumination.•Synthesized Bi2Sn2O7, AF-Bi2Sn2O7 and AF-Bi2Sn2O7/rGO nanocomposite materials are enhancing for photocatalytic activity.