Enhanced Photocatalytic and Filtration Properties of Carbon-Doped g-C3N4 Membranes Reinforced with Nanofibrillated Cellulose
Carbon-doped g-C3N4 was synthesized using a simple high-temperature process (calcination at 550 °C for 4 h). One-dimensional nanofibrillated cellulose (NFC) materials were then inserted into the two-dimensional g-C3N4 material by vacuum filtration method at room temperature. The prepared g-C3N4/NFC...
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North Carolina State University
2024-11-01
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| Online Access: | https://ojs.bioresources.com/index.php/BRJ/article/view/24008 |
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| author | Beiyue Xiong Yirong Liu Wenbiao Zheng Xiaoxiao He Chengning Ye Hanyu Xue Jianrong Xia Renjin Gao Liwei Wang |
| author_facet | Beiyue Xiong Yirong Liu Wenbiao Zheng Xiaoxiao He Chengning Ye Hanyu Xue Jianrong Xia Renjin Gao Liwei Wang |
| author_sort | Beiyue Xiong |
| collection | DOAJ |
| description | Carbon-doped g-C3N4 was synthesized using a simple high-temperature process (calcination at 550 °C for 4 h). One-dimensional nanofibrillated cellulose (NFC) materials were then inserted into the two-dimensional g-C3N4 material by vacuum filtration method at room temperature. The prepared g-C3N4/NFC composite membranes were systematically characterized using a series of techniques, such as XRD, FTIR, and SEM. The results showed that the carbon-doped photocatalysts possessed a narrow band gap, which prolonged the visible light absorption and favored the organic pollutant degradation. The incorporation of NFC enlarged the interlayer spacing, leading to an increase in the water flux. The water flux of C0.02CN/NFC (15%) composite membranes reached 73.7 L•m-2•h-1•bar-1, which is more than that of g-C3N4/NFC membrane. At the same time, the carbon doped composite membranes showed enhanced retention and photocatalytic degradation ability. The retention rate of the C0.02CN/NFC (5%) composite membranes could reach 89.3% from 80.8% after three-cycle photocatalytic experiments. The membrane maintained a good retention rate and feed flux, which confirms the composite membrane has good self-cleaning ability and stability. It could potentially be applied for water treatment. |
| format | Article |
| id | doaj-art-16c5fb2833cc49afaf938dc0c3a2991f |
| institution | DOAJ |
| issn | 1930-2126 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj-art-16c5fb2833cc49afaf938dc0c3a2991f2025-08-20T02:56:43ZengNorth Carolina State UniversityBioResources1930-21262024-11-012018098252235Enhanced Photocatalytic and Filtration Properties of Carbon-Doped g-C3N4 Membranes Reinforced with Nanofibrillated CelluloseBeiyue Xiong0Yirong Liu1Wenbiao Zheng2Xiaoxiao He3Chengning Ye4Hanyu Xue5https://orcid.org/0000-0001-9160-2290Jianrong Xia6https://orcid.org/0000-0001-5871-6309Renjin Gao7Liwei Wang8https://orcid.org/0000-0002-0741-157XCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, ChinaCollege of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, ChinaCarbon-doped g-C3N4 was synthesized using a simple high-temperature process (calcination at 550 °C for 4 h). One-dimensional nanofibrillated cellulose (NFC) materials were then inserted into the two-dimensional g-C3N4 material by vacuum filtration method at room temperature. The prepared g-C3N4/NFC composite membranes were systematically characterized using a series of techniques, such as XRD, FTIR, and SEM. The results showed that the carbon-doped photocatalysts possessed a narrow band gap, which prolonged the visible light absorption and favored the organic pollutant degradation. The incorporation of NFC enlarged the interlayer spacing, leading to an increase in the water flux. The water flux of C0.02CN/NFC (15%) composite membranes reached 73.7 L•m-2•h-1•bar-1, which is more than that of g-C3N4/NFC membrane. At the same time, the carbon doped composite membranes showed enhanced retention and photocatalytic degradation ability. The retention rate of the C0.02CN/NFC (5%) composite membranes could reach 89.3% from 80.8% after three-cycle photocatalytic experiments. The membrane maintained a good retention rate and feed flux, which confirms the composite membrane has good self-cleaning ability and stability. It could potentially be applied for water treatment.https://ojs.bioresources.com/index.php/BRJ/article/view/24008graphitic phase carbon nitridephotocatalysiscomposite membranecellulose water flux |
| spellingShingle | Beiyue Xiong Yirong Liu Wenbiao Zheng Xiaoxiao He Chengning Ye Hanyu Xue Jianrong Xia Renjin Gao Liwei Wang Enhanced Photocatalytic and Filtration Properties of Carbon-Doped g-C3N4 Membranes Reinforced with Nanofibrillated Cellulose BioResources graphitic phase carbon nitride photocatalysis composite membrane cellulose water flux |
| title | Enhanced Photocatalytic and Filtration Properties of Carbon-Doped g-C3N4 Membranes Reinforced with Nanofibrillated Cellulose |
| title_full | Enhanced Photocatalytic and Filtration Properties of Carbon-Doped g-C3N4 Membranes Reinforced with Nanofibrillated Cellulose |
| title_fullStr | Enhanced Photocatalytic and Filtration Properties of Carbon-Doped g-C3N4 Membranes Reinforced with Nanofibrillated Cellulose |
| title_full_unstemmed | Enhanced Photocatalytic and Filtration Properties of Carbon-Doped g-C3N4 Membranes Reinforced with Nanofibrillated Cellulose |
| title_short | Enhanced Photocatalytic and Filtration Properties of Carbon-Doped g-C3N4 Membranes Reinforced with Nanofibrillated Cellulose |
| title_sort | enhanced photocatalytic and filtration properties of carbon doped g c3n4 membranes reinforced with nanofibrillated cellulose |
| topic | graphitic phase carbon nitride photocatalysis composite membrane cellulose water flux |
| url | https://ojs.bioresources.com/index.php/BRJ/article/view/24008 |
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