The integrated production of ultrathin g-C3N4 and membrane assisted by edible syrup for the sustained photocatalytic treatment of Cr(VI) and tetracycline
| Autor: | Penghui Ye, Yuanyue Wu, Gong Sheng, Yuhan Zhang, Shaoqi Zhou, Yao Cheng, Kaijun Xiao, Chen Kai |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Mechanical Engineering Graphitic carbon nitride Bioengineering General Chemistry Exfoliation joint law.invention chemistry.chemical_compound Tetracycline Hydrochloride Membrane chemistry Mechanics of Materials law Specific surface area Photocatalysis General Materials Science Electrical and Electronic Engineering Glucose syrup Filtration Nuclear chemistry |
| Zdroj: | Nanotechnology. 32:465603 |
| ISSN: | 1361-6528 0957-4484 |
| DOI: | 10.1088/1361-6528/ac1bde |
| Popis: | The exfoliation of bulk raw graphitic carbon nitride (g-C3N4) by edible glucose syrup to produce ultrathing-C3N4nanosheets in concentrations of up to 0.2 mg ml-1was achieved. Detailed characterization through TEM, AFM, FT-IR, XRD, Raman and TGA confirmed the formation of ultrathin structure and improved properties. Compared to rawg-C3N4, the prepared thing-C3N4layers exhibited a 18-fold enhancement in Cr(VI) reduction and a 3-fold enhancement in tetracycline hydrochloride degradation, which is ascribed to their larger specific surface area and more exposed active sites. The layeredg-C3N4membrane was constructed via direct vacuum filtration. The layer-stackedg-C3N4nanosheet membrane exhibited an excellent and sustained photocatalytic performance as the prepared thing-C3N4layers could maintain a layered lamella after stacking in filtration process. The recyclable synthesis of ultrathing-C3N4layers and layer-stackedg-C3N4membrane by our method provides a sustainable strategy to pollution treatment by 2D materials. |
| Databáze: | OpenAIRE |
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