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| Study on Preparation of ZIF-8/Waste Pure Cotton Nonwoven Fabric Composite Hydrogel and Its Photocatalytic Degradation Performance |
| Received:March 20, 2026 Revised:April 10, 2026 |
| DOI：10.11981/j.issn.1000-6842.2026.03.230 |
| Key Words:waste pure cotton nonwoven fabric;ZIF-8;regenerated cellulose hydrogel;photocatalysis;dye degradation |
| Fund Project:国家自然科学基金52103125国家自然科学基金（52103125）。 |
| Author Name | Affiliation | Postcode | | Zou Maomao* | School of Textile Science and Engineering， Wuhan Textile University， Wuhan， Hubei Province， 430200 | 430200 | | Shao Xiaoyu | School of Textile Science and Engineering， Wuhan Textile University， Wuhan， Hubei Province， 430200 | 430200 | | Wang Mengzhao | School of Textile Science and Engineering， Wuhan Textile University， Wuhan， Hubei Province， 430200 | 430200 | | Zhou Xun | School of Textile Science and Engineering， Wuhan Textile University， Wuhan， Hubei Province， 430200 | 430200 | | Tu Hu* | School of Textile Science and Engineering， Wuhan Textile University， Wuhan， Hubei Province， 430200 | 430200 |
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| Abstract: |
Using waste pure cotton spunlace nonwoven fabric as raw material， ZIF-8/regenerated cellulose composite hydrogel （CZH） was prepared through LiOH/urea dissolution and regeneration， chemico-physical dual cross-linking， and ZIF-8 in-situ growth. Their structural characteristics， photocatalytic degradation performance， and mechanisms of action were investigated. The results showed that the successful incorporation of ZIF-8 into the regenerated cellulose hydrogel network effectively improved the specific surface area （421.10 m2/g） and photoresponsive performance of it. When the Zn(NO3)2·6H2O addition amount was 0.8% and the in-situ growth time was 24 h， the prepared 0.8CZH-24 exhibited the best overall performance， achieving a degradation rate of 99.3% towards Methylene blue with an initial mass concentration of 20 mg/L within 180 min. After five cycles， the degradation rate remained at 95.2%. The excellent photocatalytic degradation performance of 0.8CZH-24 was attributed to the synergistic oxidative action of hydroxyl radicals （·OH）， superoxide radicals （·O2-![]() ![]() ）， and holes （h+）. In addition， 0.8CZH-24 exhibited equally good photocatalytic degradation performance for Rhodamine B and Methyl Orange， with degradation rates of 96.8% and 93.5%， respectively. |
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