scholarly journals STUDYING IMPACT OF CITRIC ACID-BISMUTH NITRATE PENTAHYDRATE RATIO ON PHOTOCATALYTIC ACTIVITY OF BISMUTH OXIDE PREPARED BY SOLUTION COMBUSTION METHOD

2019 ◽  
Vol 12 (04) ◽  
pp. 2210-2217
Author(s):  
Y. Astuti ◽  
A. Fauziyah ◽  
H. Widiyandari ◽  
D. S. Widodo
Keyword(s):  
Photocatalytic Activity ◽  
Citric Acid ◽  
Bismuth Oxide ◽  
Combustion Method ◽  
Bismuth Nitrate ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Nitrate Pentahydrate ◽  
Bismuth Nitrate Pentahydrate

scholarly journals Hydrazine and Urea Fueled-Solution Combustion Method for Bi2O3 Synthesis: Characterization of Physicochemical Properties and Photocatalytic Activity

2019 ◽  
Vol 15 (1) ◽  
pp. 104-111 ◽  
Author(s):  
Yayuk Astuti ◽  
Prisca Putri Elesta ◽  
Didik Setyo Widodo ◽  
Hendri Widiyandari ◽  
Ratna Balgis
Keyword(s):  
Crystal Structure ◽  
Photocatalytic Activity ◽  
Bismuth Oxide ◽  
Rhodamine B ◽  
Combustion Method ◽  
High Photocatalytic Activity ◽  
Synthesis Process ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Structure Morphology

Bismuth oxide synthesis using solution combustion method fuelled by hydrazine and urea has been conducted. This study aims to examine the effect of the applied fuels, urea and hydrazine, on product characteristics and photocatalytic activity in degrading rhodamine B dye. Bismuth oxide synthesis was initiated by dissolving bismuth nitrate pentahydrate (Bi(NO3)3.5H2O) in a nitric acid solvent. Fuel was added and then stirred. The solution formed was heated at 300 ºC for 8 hours. The product obtained was then calcined at 700 ºC for 4 hours. Bismuth oxide synthesized with urea (BO1) and hydrazine (BO2) as fuels both obtained form of yellow powder. The formation of bismuth oxide is indicated by the vibrations of the Bi–O–Bi and Bi–O groups and the crystal structure of a-Bi2O3 in both products. Photocatalytic activity test showed that BO1 has a photocatalyst activity in degrading rhodamine B higher than that of BO2 with constant values of  3.83×10-5 s-1 and 3.43×10-5 s-1, respectively. The high photocatalytic activity can be examined through several factors, such as: band gap values, crystal structure, morphology, and surface area, acquired as a result of the use of different fuels in the synthesis process. Copyright © 2020 BCREC Group. All rights reserved 

scholarly journals Improvement of the Photocatalytic Activity of ZnO/Burkeite Heterostructure Prepared by Combustion Method

Catalysts ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 817 ◽  
Author(s):  
A. Luna-Flores ◽  
M.A. Morales ◽  
R. Agustín-Serrano ◽  
R. Portillo ◽  
J.A. Luna-López ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Combustion Method ◽  
X Ray Diffraction ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
X Ray ◽  
Sem Image ◽  
Particle Aggregates ◽  
One Step ◽  
Ph Dependent

In this work, a novel route is discussed to produce in one step ZnO/Burkeite powders by the modified solution combustion method. The ZnO particles enhance the photocatalytic activity in the degradation of Rhodamine B, in which Burkeite mineral acts as a support due to the pH-dependent morphology of the particle aggregates of the as-synthesized powders. The X-ray diffraction (XRD) characterization shows the presence of a heterostructure: ZnO/Burkeite. The Scanning Electron Microscopy (SEM) image shows a morphological dependence with the pH of the solution used for the synthesis. The results show that the system with the highest degradation (92.4%) corresponds to the case in which ZnO/Burkeite heterostructure was synthesized with a pH 11.

scholarly journals Synthesis of α-Bismuth oxide using solution combustion method and its photocatalytic properties

2016 ◽  
Vol 107 ◽  
pp. 012006 ◽  
Author(s):  
Y. Astuti ◽  
A. Fauziyah ◽  
S. Nurhayati ◽  
A.D. Wulansari ◽  
R. Andianingrum ◽  
...  
Keyword(s):  
Bismuth Oxide ◽  
Combustion Method ◽  
Photocatalytic Properties ◽  
Solution Combustion ◽  
Solution Combustion Method

scholarly journals A Facile Synthesis, Characterization, and Photocatalytic Activity of Magnesium Ferrite Nanoparticles via the Solution Combustion Method

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Loan T. T. Nguyen ◽  
Lan T. H. Nguyen ◽  
Nhuong Chu Manh ◽  
Dung Nguyen Quoc ◽  
Hai Nguyen Quang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Intermediate Phase ◽  
Combustion Method ◽  
Xrd Analysis ◽  
Ferrite Nanoparticles ◽  
Blue Dye ◽  
Magnesium Ferrite ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Tem Analysis

In this study, we adopted the solution combustion method to synthesize magnesium ferrite (MgFe2O4) using urea as the fuel. Various techniques including TGA, XRD, SEM, TEM, FTIR, UV-Vis DRS, and EDS were employed to characterize the synthesized MgFe2O4 nanoparticles. The XRD analysis revealed that single-phase MgFe2O4 was formed at a calcination temperature of at 500–600°C for 3 hours in the absence of an intermediate phase. TEM analysis also revealed the formation of monodisperse magnesium ferrite nanoparticles, averaged at 30 nm in size. The photocatalytic activity of the synthesized MgFe2O4 nanoparticles against methylene blue dye under visible light was investigated, showing the efficiency of 89.73% after 240 minutes of light irradiation with the presence of H2O2.

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