Robust Self-Supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC Electrode for Efficient Electrochemical Degradation of Cationic Blue X-GRRL Dye

Exploration of highly efficient and robust catalyst is pivotal for electrocatalytic degradation of dye wastewater, but it still is a challenge. Here, we develop a three-dimensional self-supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub> hybrid nanosheets grown...

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Main Authors: Caiyun Li, Peng Yi, Junwei Sun, Xi-Ao Wang, Rongzhan Liu, Jiankun Sun
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/9/3957
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author Caiyun Li
Peng Yi
Junwei Sun
Xi-Ao Wang
Rongzhan Liu
Jiankun Sun
author_facet Caiyun Li
Peng Yi
Junwei Sun
Xi-Ao Wang
Rongzhan Liu
Jiankun Sun
author_sort Caiyun Li
collection DOAJ
description Exploration of highly efficient and robust catalyst is pivotal for electrocatalytic degradation of dye wastewater, but it still is a challenge. Here, we develop a three-dimensional self-supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub> hybrid nanosheets grown on carbon cloth (noted by SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC) electrode via a simple hydrothermal method and annealing treatment. Benefitting from the interlaced nanosheets architecture that enlarges the surface area and the synergetic component effect that accelerates the interfacial electronic transfer, SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrode exhibits a superior electrocatalytic degradation efficiency for cationic blue X-GRRL dye in comparison with the single metal oxide electrode containing SnO<sub>2</sub>@CC and Mn<sub>2</sub>O<sub>3</sub>@CC. The degradation efficiency of cationic blue X-GRRL on SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrode can reach up to 97.55% within 50 min. Furthermore, self-supported architecture of nanosheets on carbon cloth framework contributes to a robust stability compared with the traditional electrode via the multiple dip/brush coating accompanied by the thermal decomposition method. SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrode exhibits excellent recyclability, which can still retain a degradation efficiency of 94.12% after six cycles. This work may provide a new pathway for the design and exploration of highly efficient and robust electrooxidation catalysts for dye degradation.
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spelling doaj.art-39302646d773445b9801a695bde268472023-11-17T23:25:45ZengMDPI AGMolecules1420-30492023-05-01289395710.3390/molecules28093957Robust Self-Supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC Electrode for Efficient Electrochemical Degradation of Cationic Blue X-GRRL DyeCaiyun Li0Peng Yi1Junwei Sun2Xi-Ao Wang3Rongzhan Liu4Jiankun Sun5College of Textiles and Clothing, Qingdao University, Qingdao 266071, ChinaCollege of Textiles and Clothing, Qingdao University, Qingdao 266071, ChinaCollege of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaCollege of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaCollege of Textiles and Clothing, Qingdao University, Qingdao 266071, ChinaCollege of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaExploration of highly efficient and robust catalyst is pivotal for electrocatalytic degradation of dye wastewater, but it still is a challenge. Here, we develop a three-dimensional self-supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub> hybrid nanosheets grown on carbon cloth (noted by SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC) electrode via a simple hydrothermal method and annealing treatment. Benefitting from the interlaced nanosheets architecture that enlarges the surface area and the synergetic component effect that accelerates the interfacial electronic transfer, SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrode exhibits a superior electrocatalytic degradation efficiency for cationic blue X-GRRL dye in comparison with the single metal oxide electrode containing SnO<sub>2</sub>@CC and Mn<sub>2</sub>O<sub>3</sub>@CC. The degradation efficiency of cationic blue X-GRRL on SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrode can reach up to 97.55% within 50 min. Furthermore, self-supported architecture of nanosheets on carbon cloth framework contributes to a robust stability compared with the traditional electrode via the multiple dip/brush coating accompanied by the thermal decomposition method. SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrode exhibits excellent recyclability, which can still retain a degradation efficiency of 94.12% after six cycles. This work may provide a new pathway for the design and exploration of highly efficient and robust electrooxidation catalysts for dye degradation.https://www.mdpi.com/1420-3049/28/9/3957electrocatalytic degradationSnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrodecationic blue X-GRRLrecyclability
spellingShingle Caiyun Li
Peng Yi
Junwei Sun
Xi-Ao Wang
Rongzhan Liu
Jiankun Sun
Robust Self-Supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC Electrode for Efficient Electrochemical Degradation of Cationic Blue X-GRRL Dye
Molecules
electrocatalytic degradation
SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrode
cationic blue X-GRRL
recyclability
title Robust Self-Supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC Electrode for Efficient Electrochemical Degradation of Cationic Blue X-GRRL Dye
title_full Robust Self-Supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC Electrode for Efficient Electrochemical Degradation of Cationic Blue X-GRRL Dye
title_fullStr Robust Self-Supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC Electrode for Efficient Electrochemical Degradation of Cationic Blue X-GRRL Dye
title_full_unstemmed Robust Self-Supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC Electrode for Efficient Electrochemical Degradation of Cationic Blue X-GRRL Dye
title_short Robust Self-Supported SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC Electrode for Efficient Electrochemical Degradation of Cationic Blue X-GRRL Dye
title_sort robust self supported sno sub 2 sub mn sub 2 sub o sub 3 sub cc electrode for efficient electrochemical degradation of cationic blue x grrl dye
topic electrocatalytic degradation
SnO<sub>2</sub>-Mn<sub>2</sub>O<sub>3</sub>@CC electrode
cationic blue X-GRRL
recyclability
url https://www.mdpi.com/1420-3049/28/9/3957
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