Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible Light
Metal-organic framework composites, which are combined from metal-organic framework and advanced carbon material, have drawn great attention in many fields of application such as environmental remediation and catalysts. Within this paper, the carbon/MIL-53(Fe) composite was fabricated via an in situ...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2021-01-01
|
| Series: | Adsorption Science & Technology |
| Online Access: | http://dx.doi.org/10.1155/2021/5906248 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832544712798502912 |
|---|---|
| author | Ngoc Tue Nguyen Xuan Truong Nguyen Duc-Trung Nguyen Hong Minh Tran Thi May Nguyen Thuong Quang Tran |
| author_facet | Ngoc Tue Nguyen Xuan Truong Nguyen Duc-Trung Nguyen Hong Minh Tran Thi May Nguyen Thuong Quang Tran |
| author_sort | Ngoc Tue Nguyen |
| collection | DOAJ |
| description | Metal-organic framework composites, which are combined from metal-organic framework and advanced carbon material, have drawn great attention in many fields of application such as environmental remediation and catalysts. Within this paper, the carbon/MIL-53(Fe) composite was fabricated via an in situ synthesis, in which N-containing carbon dots (NCDs) were mixed with MOF precursors’ solutions under various ratios before going through the solvothermal stage. It was showed that the introduction of a certain amount of NCDs would affect characteristic features and improve the photocatalytic performance of final products. The optimal doping content of NCDs in NCD/MIL-53(Fe) composite was determined. SEM images showed that the M-140 appeared as hexagonal bipyramid-shaped crystals with an average size of 700 nm. Compared with pristine MIL-53(Fe), the M-140 was more visibly light-responsive, and its calculated band gap energy was approximately 2.3 eV. In addition, M-140 catalyst also displayed more excellent photocatalytic activity for Methylene Blue degradation in a pH range from 5 to 7. Under optimal conditions, MB was achieved within 60 minutes and the removal rate was nearly 100% after 5 cycles. The photocatalytic mechanism of the obtained NCD/MIL-53(Fe) composite was discussed. |
| format | Article |
| id | doaj-art-ba3f93c84b5346eaa5fe09e71ddd572b |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-ba3f93c84b5346eaa5fe09e71ddd572b2025-02-03T10:07:23ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382021-01-01202110.1155/2021/59062485906248Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible LightNgoc Tue Nguyen0Xuan Truong Nguyen1Duc-Trung Nguyen2Hong Minh Tran3Thi May Nguyen4Thuong Quang Tran5School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, VietnamSchool of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, VietnamSchool of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, VietnamSchool of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, VietnamSchool of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, VietnamSchool of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, VietnamMetal-organic framework composites, which are combined from metal-organic framework and advanced carbon material, have drawn great attention in many fields of application such as environmental remediation and catalysts. Within this paper, the carbon/MIL-53(Fe) composite was fabricated via an in situ synthesis, in which N-containing carbon dots (NCDs) were mixed with MOF precursors’ solutions under various ratios before going through the solvothermal stage. It was showed that the introduction of a certain amount of NCDs would affect characteristic features and improve the photocatalytic performance of final products. The optimal doping content of NCDs in NCD/MIL-53(Fe) composite was determined. SEM images showed that the M-140 appeared as hexagonal bipyramid-shaped crystals with an average size of 700 nm. Compared with pristine MIL-53(Fe), the M-140 was more visibly light-responsive, and its calculated band gap energy was approximately 2.3 eV. In addition, M-140 catalyst also displayed more excellent photocatalytic activity for Methylene Blue degradation in a pH range from 5 to 7. Under optimal conditions, MB was achieved within 60 minutes and the removal rate was nearly 100% after 5 cycles. The photocatalytic mechanism of the obtained NCD/MIL-53(Fe) composite was discussed.http://dx.doi.org/10.1155/2021/5906248 |
| spellingShingle | Ngoc Tue Nguyen Xuan Truong Nguyen Duc-Trung Nguyen Hong Minh Tran Thi May Nguyen Thuong Quang Tran Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible Light Adsorption Science & Technology |
| title | Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible Light |
| title_full | Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible Light |
| title_fullStr | Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible Light |
| title_full_unstemmed | Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible Light |
| title_short | Effect of Nitrogen-Doped Carbon Dots (NCDs) on the Characteristics of NCD/MIL-53(Fe) Composite and Its Photocatalytic Performance for Methylene Blue Degradation under Visible Light |
| title_sort | effect of nitrogen doped carbon dots ncds on the characteristics of ncd mil 53 fe composite and its photocatalytic performance for methylene blue degradation under visible light |
| url | http://dx.doi.org/10.1155/2021/5906248 |
| work_keys_str_mv | AT ngoctuenguyen effectofnitrogendopedcarbondotsncdsonthecharacteristicsofncdmil53fecompositeanditsphotocatalyticperformanceformethylenebluedegradationundervisiblelight AT xuantruongnguyen effectofnitrogendopedcarbondotsncdsonthecharacteristicsofncdmil53fecompositeanditsphotocatalyticperformanceformethylenebluedegradationundervisiblelight AT ductrungnguyen effectofnitrogendopedcarbondotsncdsonthecharacteristicsofncdmil53fecompositeanditsphotocatalyticperformanceformethylenebluedegradationundervisiblelight AT hongminhtran effectofnitrogendopedcarbondotsncdsonthecharacteristicsofncdmil53fecompositeanditsphotocatalyticperformanceformethylenebluedegradationundervisiblelight AT thimaynguyen effectofnitrogendopedcarbondotsncdsonthecharacteristicsofncdmil53fecompositeanditsphotocatalyticperformanceformethylenebluedegradationundervisiblelight AT thuongquangtran effectofnitrogendopedcarbondotsncdsonthecharacteristicsofncdmil53fecompositeanditsphotocatalyticperformanceformethylenebluedegradationundervisiblelight |