Co3O4-Bi2O3 heterojunction; An effective photocatalyst for photodegradation of rhodamine B dye Article Swipe

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Muhammad Saeed , Afifa Baig , Muhammad Asghar Jamal , Nadia Akram , Tanveer Hussain Bokhari ·

YOU? · · 2021 · Open Access · · DOI: https://doi.org/10.21203/rs.3.rs-463319/v1

Recently, the research on development of visible-light-active photocatalysts for photodegradation of organic pollutants has got much attention. Therefore, this study reports the synthesis of Co 3 O 4 -Bi 2 O 3 heterojunction as visible-light responsive photocatalyst for photodegradation of rhodamine B dye. The Co 3 O 4 -Bi 2 O 3 heterojunction was synthesized by coprecipitation method and characterized by XRD, EDS, SEM, TGA and FTIR. The as prepared Co 3 O 4 -Bi 2 O 3 heterojunction was utilized as photocatalyst for photodegradation of rhodamine B dye using a 100 mg/L solution. It was observed that Co 3 O 4 -Bi 2 O 3 showed best catalytic performance with ~ 92% degradation of rhodamine B dye than Co 3 O 4 and Bi 2 O 3 with 14 and 34% removal of rhodamine B dye, respectively. The rate constant for Co 3 O 4 -Bi 2 O 3 catalyzed photodegradation of rhodamine B was 6 times and 3 times higher than rate constant for Co 3 O 4 catalyzed and Bi 2 O 3 catalyzed photodegradation of rhodamine B, respectively. The pH 8 was found as optimum pH for Co 3 O 4 -Bi 2 O 3 catalyzed photodegradation of rhodamine B dye.

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Photodegradation Rhodamine B Photocatalysis Heterojunction Photochemistry Rhodamine Materials science Chemistry Chemical engineering Optoelectronics Optics Catalysis Physics Organic chemistry Fluorescence Engineering

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Type: preprint
Language: en
Landing Page: https://doi.org/10.21203/rs.3.rs-463319/v1
PDF: https://www.researchsquare.com/article/rs-463319/latest.pdf
OA Status: green
Cited By: 2
References: 28
Related Works: 10
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DOI: https://doi.org/10.21203/rs.3.rs-463319/v1

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Title: Co3O4-Bi2O3 heterojunction; An effective photocatalyst for photodegradation of rhodamine B dye

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Type: preprint

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Language: en

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Publication year: 2021

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Publication date: 2021-04-26

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Authors: Muhammad Saeed, Afifa Baig, Muhammad Asghar Jamal, Nadia Akram, Tanveer Hussain Bokhari

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Landing page: https://doi.org/10.21203/rs.3.rs-463319/v1

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Concepts: Photodegradation, Rhodamine B, Photocatalysis, Heterojunction, Photochemistry, Rhodamine, Materials science, Chemistry, Chemical engineering, Optoelectronics, Optics, Catalysis, Physics, Organic chemistry, Fluorescence, Engineering

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Cited by: 2

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