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- Title
Facile fabrication of recyclable and macroscopic D-g-C<sub>3</sub>N<sub>4</sub>/sodium alginates/non-woven fabric immobilized photocatalysts with enhanced photocatalytic activity and antibacterial performance.
- Authors
Huo, Kaili; Wang, Jin; Zhuang, Tao; Zhao, Yuqiang; Gao, Boru; Dou, Mengmeng; Wang, Xiaoyue; Fu, Yao; Wang, Dongying; Ci, Lin
- Abstract
The immobilization of catalysts hinders the application of nanosized photocatalysts in wastewater treatment. In this study, a simple method for the preparation of flexible composite non-woven catalysts with a good spectral response is presented. Firstly, the porous g-C3N4 nanosheets containing nitrogen defects (DCN) and sodium alginate (SA) were blended to prepare the casting solution and then coated on the surface of polyester and viscose blend non-woven fabric (NW). Finally, the robust three-dimensional composite non-woven catalyst (DCN@SA/NW) was constructed by cross-linking with CaCl2. The as-prepared samples were characterized by different physicochemical techniques including SEM, EDS, FTIR, Raman, XRD, XPS, and TGA. The photocatalytic degradation of dyes and antibiotics and self-cleaning and antibacterial properties of the catalyst were investigated. The optimal DCN@SA/NW formulation was 2.0 wt.% DCN and 2.0 wt.% SA. The DCN@SA/NW composite efficiently degraded rhodamine (RhB) and tetracycline hydrochloride (TC). Moreover, the synthesized non-woven composite catalyst was easily recycled and remained stable, indicating its promising potential in wastewater treatment. The DCN@SA/NW also exhibited outstanding self-cleaning and antibacterial performance. This study provides an interesting idea for the research and development of immobilized photocatalysts and has great potential in future practical photocatalytic applications.
- Subjects
PHOTOCATALYSTS; ANTIBACTERIAL agents; PHOTODEGRADATION; SODIUM alginate; POLYESTERS; WASTEWATER treatment; SPECTRAL sensitivity
- Publication
Journal of Materials Science, 2021, Vol 56, Issue 31, p17584
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-021-06454-4