Fabrication, characterization and application of Se doped Bi2S3 nanoflowers for the efficient removal of toxic methylene blue dye

• Published in: Materials today : proceedings
• Main Authors: Verma, Mukesh Kumar, Gupta, Anju, Kumar, Raj
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2023
• Subjects: Adsorption; Bi2S3; Methylene blue; Nanoflower; Water pollution; Nanoflower; Bi2S3; Water pollution; Adsorption; Methylene blue
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2023.01.319

•Se-doped Bi2S3 nanoflowers using the solvothermal method.•The synthesized nanoflowers were characterized with FESEM, FTIR, XRD, EDX and BET analysis.•Nanoflowers were used for the removal of toxic cationic methylene blue dye.•Adsorption study showed 94.6% of methylene blue was adsorbed in 15 min. The present work reports the fabrication of Se-doped Bi2S3 nanoflowers using the solvothermal method. The nanoflowers demonstrated excellent selectivity and were used for the removal of toxic cationic methylene blue dye. The synthesized nanoflowers were characterized with FESEM, FTIR, XRD, EDX and BET analysis. The XRD pattern revealed that the nanoflowers are semi-crystalline in nature. The flower-like morphology and porosity of Bi2S3 nanoflowers were confirmed using FESEM and BET, respectively. Barrett Joyner Halenda (BJH) method was used to calculate the average pore diameter of the nanoflowers and was found to be 6.29 nm. The synthesized nanostructures exhibit type -IV adsorption isotherm which confirms its porous nature as well as multilayer formation capability. The nanoflowers showed good chemical stability, reusability, and 94.6 % of methylene blue was adsorbed within 15 min under acidic environment (pH 1.25).