Design, fabrication and characterization of photocatalyst Ni-doped BiVO4 for high effectively degrading dye contaminant
Contaminated environment from textile industries have attracted global concern owing to the traits of organic pollutions with high stability against light and chemicals attacks. How to improve the preparation process of photocatalysts and reduce the cost is a considerable requirement for the wide ap...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abc79e |
| _version_ | 1827869240633327616 |
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| author | Sha Li Yong Cheng Quanhua Wang Chenglun Liu Longjun Xu |
| author_facet | Sha Li Yong Cheng Quanhua Wang Chenglun Liu Longjun Xu |
| author_sort | Sha Li |
| collection | DOAJ |
| description | Contaminated environment from textile industries have attracted global concern owing to the traits of organic pollutions with high stability against light and chemicals attacks. How to improve the preparation process of photocatalysts and reduce the cost is a considerable requirement for the wide application of photocatalytic wastewater treatment. The Ni-doped BiVO _4 (NBVO) process was improved to a facile and reliable hydrothermal method. Ni with a theoretical mass of 0.75% was added to BiVO _4 (BVO), which displayed outstanding photocatalytic activity and stability. Under visible light irradiation, the decolorization rate of 0.75% NBVO to Rhodamine B (RhB) can reach 96% within 75 min, and the removal efficiency can still achieve 86% after four successive cycles. The active ingredient ∙O _2 ^− confirmed from capture experiments played an indispensable role and was hired to explain the possible photocatalytic mechanism. In addition, the enhanced photocatalytic activity of 0.75% NBVO should be ascribed to the increase in specific surface area (beneficial for adsorption) and the decline in impedance (favorable for photocarrier migration). 0.75% NBVO as a highly efficient visible-light-driven photocatalyst has a brighter prospect for wastewater treatment in the years ahead. |
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| id | doaj.art-6a25f27e3aff4085aa31ffa7ee565058 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:43:06Z |
| publishDate | 2020-01-01 |
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| series | Materials Research Express |
| spelling | doaj.art-6a25f27e3aff4085aa31ffa7ee5650582023-08-09T15:53:19ZengIOP PublishingMaterials Research Express2053-15912020-01-0171111500510.1088/2053-1591/abc79eDesign, fabrication and characterization of photocatalyst Ni-doped BiVO4 for high effectively degrading dye contaminantSha Li0Yong Cheng1https://orcid.org/0000-0001-9043-8302Quanhua Wang2Chenglun Liu3Longjun Xu4https://orcid.org/0000-0001-7469-9721State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University , Chongqing, 400044, People’s Republic of China; College of Chemistry and Chemical Engineering, Chongqing University , Chongqing, 400044, People’s Republic of ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University , Chongqing, 400044, People’s Republic of ChinaCollege of Chemistry and Chemical Engineering, Chongqing University , Chongqing, 400044, People’s Republic of ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University , Chongqing, 400044, People’s Republic of China; College of Chemistry and Chemical Engineering, Chongqing University , Chongqing, 400044, People’s Republic of ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University , Chongqing, 400044, People’s Republic of ChinaContaminated environment from textile industries have attracted global concern owing to the traits of organic pollutions with high stability against light and chemicals attacks. How to improve the preparation process of photocatalysts and reduce the cost is a considerable requirement for the wide application of photocatalytic wastewater treatment. The Ni-doped BiVO _4 (NBVO) process was improved to a facile and reliable hydrothermal method. Ni with a theoretical mass of 0.75% was added to BiVO _4 (BVO), which displayed outstanding photocatalytic activity and stability. Under visible light irradiation, the decolorization rate of 0.75% NBVO to Rhodamine B (RhB) can reach 96% within 75 min, and the removal efficiency can still achieve 86% after four successive cycles. The active ingredient ∙O _2 ^− confirmed from capture experiments played an indispensable role and was hired to explain the possible photocatalytic mechanism. In addition, the enhanced photocatalytic activity of 0.75% NBVO should be ascribed to the increase in specific surface area (beneficial for adsorption) and the decline in impedance (favorable for photocarrier migration). 0.75% NBVO as a highly efficient visible-light-driven photocatalyst has a brighter prospect for wastewater treatment in the years ahead.https://doi.org/10.1088/2053-1591/abc79eNi-doped BiVO4photocatalysthydrothermal methodwastewater treatment |
| spellingShingle | Sha Li Yong Cheng Quanhua Wang Chenglun Liu Longjun Xu Design, fabrication and characterization of photocatalyst Ni-doped BiVO4 for high effectively degrading dye contaminant Materials Research Express Ni-doped BiVO4 photocatalyst hydrothermal method wastewater treatment |
| title | Design, fabrication and characterization of photocatalyst Ni-doped BiVO4 for high effectively degrading dye contaminant |
| title_full | Design, fabrication and characterization of photocatalyst Ni-doped BiVO4 for high effectively degrading dye contaminant |
| title_fullStr | Design, fabrication and characterization of photocatalyst Ni-doped BiVO4 for high effectively degrading dye contaminant |
| title_full_unstemmed | Design, fabrication and characterization of photocatalyst Ni-doped BiVO4 for high effectively degrading dye contaminant |
| title_short | Design, fabrication and characterization of photocatalyst Ni-doped BiVO4 for high effectively degrading dye contaminant |
| title_sort | design fabrication and characterization of photocatalyst ni doped bivo4 for high effectively degrading dye contaminant |
| topic | Ni-doped BiVO4 photocatalyst hydrothermal method wastewater treatment |
| url | https://doi.org/10.1088/2053-1591/abc79e |
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