| 杨晓雨,杨祥建,李飞云,陈天影,邹小峰,唐艳军.负载β-FeOOH/Fe3O4的纤维素/壳聚糖复合气凝胶的制备及其对甲基橙降解性能研究[J].中国造纸,2024,43(12):23-30 |
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| 负载β-FeOOH/Fe3O4的纤维素/壳聚糖复合气凝胶的制备及其对甲基橙降解性能研究 |
| Preparation of Cellulose/Chitosan Composite Aerogels Loaded with β-FeOOH/Fe3O4 and Degradation Performance of Methyl Orange |
| 收稿日期:2024-05-16 |
| DOI:10.11980/j.issn.0254-508X.2024.12.004 |
| 关键词: 纤维素 多态铁 复合气凝胶 光催化 |
| Key Words:cellulose polymorphic iron composite aerogel photocatalysis |
| 基金项目:浙江省“领雁”研发攻关计划项目(2023C03157)。 |
| 作者 | 单位 | 邮编 | | 杨晓雨 | 浙江理工大学纺织科学与工程学院制浆造纸研究所,浙江杭州,310018 | 310018 | | 杨祥建 | 浙江理工大学纺织科学与工程学院制浆造纸研究所,浙江杭州,310018 浙江华丰纸业科技有限公司,浙江安吉,313309 | 313309 | | 李飞云 | 浙江理工大学纺织科学与工程学院制浆造纸研究所,浙江杭州,310018 | 310018 | | 陈天影 | 浙江理工大学纺织科学与工程学院制浆造纸研究所,浙江杭州,310018 | 310018 | | 邹小峰 | 浙江华丰纸业科技有限公司,浙江安吉,313309 | 313309 | | 唐艳军* | 浙江理工大学纺织科学与工程学院制浆造纸研究所,浙江杭州,310018 | 310018 |
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| 摘要:本研究以纤维素/壳聚糖气凝胶(CCG)为基底,负载可见光催化剂β-FeOOH/Fe3O4,制备β-FeOOH/Fe3O4@CCG复合气凝胶,构筑光Fenton体系提高催化效能。系统研究了不同β-FeOOH/Fe3O4质量比以及不同负载量复合气凝胶对甲基橙(MO)的降解效果,并阐述了光Fenton降解机理。结果表明,在光Fenton降解中,随着β-FeOOH/Fe3O4负载量的增加,MO降解率提高。当β-FeOOH/Fe3O4的质量比为2∶1时,复合气凝胶降解能力最高,MO降解率达到89.1%。自由基捕获结果表明,光诱导降解MO的主要活性物质为羟基自由基。 |
| Abstract:The study mainly developed the preparation of cellulose/chitosan composite aerogels loaded with visible light catalyst β-FeOOH/Fe3O4, which was subsequently used as a phototropic Fenton-like system to improve the catalytic efficiency. The degradation effect of composite aerogels on methyl orange (MO) with different β-FeOOH/Fe3O4 mass ratios and different loadings was systematically investigated, and the phototropic Fenton-like degradation mechanism was elaborated. The results showed that in phototropic Fenton-like degradation, the degradation rate of MO increased with the increase of loadings. When the mass ratio of β-FeOOH/Fe3O4 was 2∶1, the degradation ability attained the optimum state, with a degradation rate of 89.1%. The results of free radical trapping experiments showed that the main active subtances for photo-induced degradation of methyl orange could be attributed to hydroxyl radicals. |
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