Bismuth sulfide/coconut fiber based-activated carbon composite: synthesis, characterization, and electrochemical performance

Astuti, Yayuk; Latifah, AnnidaMuhimatul; Arnelli,; Suseno, Ahmad; Lestariningsih, Titik

doi:10.1007/s42247-023-00529-5

Cited by 2 publications

(1 citation statement)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bismuth oxide is a semiconductor metal oxide that can be used as a photocatalyst because it has a band gap energy of 2.00-3.96 eV microwave assisted method [9], hydrothermal method [10][11][12][13][14], chemical deposition [15], spray pyrolysis [16], electrospinning [17], and coprecipitation methods [18,19]. Among the methods available, solution combustion was chosen because it exhibits advantages such as low in cost, effortless, achieve better homogeneity than the final product, and able to produce very fine crystalline powder [20].…”

Section: Introductionmentioning

confidence: 99%

Hydrazine-Fueled Solution Combustion Method: Fuel/Oxidizer Ratio Effects on Photocatalytic Performance of Bismuth Oxide

Astuti,

Mulyana,

Tasiman

et al. 2023

Bull. Chem. React. Eng. Catal.

Self Cite

View full text Add to dashboard Cite

Bismuth oxide nanoparticles were synthesized through the solution combustion method with a variation of fuel: oxidizer (hydrazine: bismuth nitrate) ratios (ϕ) of ϕ<1, ϕ=1 (stoichiometrically balanced) and ϕ> 1. Bismuth oxide nanoparticles were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and UV-Visible Diffuse Reflectance Spectroscopy (UV-DRS). The FTIR spectra obtained implies that the bismuth oxide nanoparticles of the three ratios contain Bi-O-Bi and Bi-O groups indicating its successful formation. XRD diffractogram suggests that the synthesized bismuth oxide nanoparticles form the α-Bi2O3 crystalline phase for ϕ<1 and ϕ>1; meanwhile a mixture of α-/β- Bi2O3 phases for ϕ=1. The SEM image illustrates that bismuth oxide nanoparticles form pebble shapes with the ratios in the order of increasing particle sizes of ϕ>1, ϕ=1, and ϕ<1. The UV-DRS results show that the bismuth oxide with ϕ<1, ϕ=1, and ϕ>1 have respective band gap energies of 2.76 eV, 2.72 eV, and 2.78 eV. The evaluation of the photocatalytic activity of the three bismuth oxide samples shows bismuth oxide with ϕ=1 has the highest photocatalytic activity in remazol black B and methyl orange dyes with rate constants 6.744 x 10-5 s-1 and 7.369 x 10-5 s-1, respectively. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

show abstract