Visible light driven photocatalytic nanocomposite for the degradation of Rhodamine B in water

Parallel to the fast growing of population around the world, there has been a rapid increase in the amount of toxic organic waste that end up in water bodies, which is a threat to human health and to the environment. Because of this, there is need for the development of materials that are able to de...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 471; no. 1; pp. 12014 - 12019
Main Authors Rubio-Govea, R, Orona-Návar, C, Hernández, N, García-García, A, Ornelas-Soto, N E
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2020
Subjects
Bismuth oxides
Bismuth trioxide
Catalytic activity
Crystallography
Environmental degradation
Fabrication
Health risks
Irradiation
Light irradiation
Low temperature
Nanocomposites
Organic wastes
Photocatalysis
Photodegradation
Pollutants
Pressure
Radiation
Rhodamine
Synthesis
Toxic wastes
Water pollution
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Summary:Parallel to the fast growing of population around the world, there has been a rapid increase in the amount of toxic organic waste that end up in water bodies, which is a threat to human health and to the environment. Because of this, there is need for the development of materials that are able to degrade them while using the sunlight. In this work, a Bi2O3/rGO/MoO3 composite was successfully synthesized by a solvothermal method under ambient pressure and low temperature. SEM, STEM and XRD techniques were used to characterize the morphological and crystallographic properties of the composite. It was demonstrated that the amount of GO in the synthesis of the composite has a great effect in the photocatalytic activity and it was found that the best ratio between Bi2O3 and GO was 300:1. The synthesized composite photocatalyst with ratio of 300:1 presented and enhanced photocatalytic activity for Rhodamine B as it was able to degrade around 70 % after 240 min under visible light irradiation, compared to pristine Bi2O3 that was able to degrade around 55 %. Results from this study illustrate the fabrication of a new ternary composite, which shows promising results for its application in the degradation of organic pollutants in water.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/471/1/012014