核黄素敏化二氧化钛光催化剂的制备及其对新型食源性危害物1,3,6,8-四溴咔唑光催化降解性能

doi:10.7506/spkx1002-6630-20250320-159

食品科学 ›› 2025, Vol. 46 ›› Issue (22): 72-79.doi: 10.7506/spkx1002-6630-20250320-159

• 食源性危害物防控技术专栏 • 上一篇下一篇

核黄素敏化二氧化钛光催化剂的制备及其对新型食源性危害物1,3,6,8-四溴咔唑光催化降解性能

李洁，张冰清，魏然，焦龙，张晓晔，陈翔，张宾

（1.浙江海洋大学食品与药学学院，浙江省海产品健康危害因素关键技术研究重点实验室，浙江?舟山 316022；2.浙江海洋大学比萨海洋研究生学院，浙江?舟山 316022；3.浙江海洋大学船舶与海运学院，浙江?舟山 316022；4.舟山市食品药品检验检测研究院，浙江?舟山 316012）

发布日期:2025-11-10
基金资助:
浙江省市场监督管理局科技计划项目（ZD2025024）；浙江省教育厅一般科研项目（Y202457281）

Preparation of Riboflavin-Sensitized Titanium Dioxide Photocatalysts and Their Photocatalytic Degradation of the Emerging Foodborne Hazard 1,3,6,8-Tetrabromocarbazole

LI Jie, ZHANG Bingqing, WEI Ran, JIAO Long, ZHANG Xiaoye, CHEN Xiang, ZHANG Bin

(1. Zhejiang Provincial Key Laboratory of Key Technology Research on Seafood Health Hazard Factors, Food and Pharmacy College, Zhejiang Ocean University, Zhoushan 316022, China; 2. Pisa Marine Graduate School, Zhejiang Ocean University, Zhoushan 316022, China; 3. School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China; 4. Zhoushan Institute for Food and Drug Inspection and Testing, Zhoushan 316012, China)

Published:2025-11-10

摘要/Abstract

摘要： 本研究分别采用旋蒸法和吸附法制备两种核黄素（riboflavin，Rib）敏化二氧化钛（TiO2）纳米复合光催化剂TiO2@Rib和Rib@TiO2。紫外-可见光谱分析表明，Rib的敏化作用使得两种复合光催化剂的光吸收范围从紫外光区扩展到了可见光区。扫描电镜和红外光谱分析表明，TiO2@Rib中Rib以非聚集体形式负载于纳米孔道内，而Rib@TiO2中Rib晶体主要吸附于TiO2表面。此外，TiO2@Rib水溶液贮存5 d内未见明显沉淀，具有极佳的水中分散稳定性。且TiO2@Rib表现出最高的单线态氧（1O2）和羟自由基（·OH）生成能力。在450 nm蓝光LED矩阵光源辐照60 min后，TiO2@Rib对新型食源性危害物1,3,6,8-四溴咔唑的光催化降解率达56.41%，是单纯Rib的1.64 倍。本研究可为优化构建低毒、高效食品色素敏化TiO2复合光催化剂，及其对水产品中新型食源性危害物的光催化降解应用提供新思路和实验依据。

关键词: 核黄素；二氧化钛；染料敏化；光催化降解；1,3,6,8-四溴咔唑

Abstract: In this study, two types of riboflavin-sensitized titanium dioxide (TiO2) nanocomposite photocatalysts, TiO2@Rib and Rib@TiO2, were prepared using the rotary evaporation method and the adsorption method, respectively. Ultraviolet-visble spectroscopy (UV-Vis) analysis revealed that the sensitization effect of riboflavin extended the light absorption range of both composite photocatalysts from the ultraviolet region to the visible region. Scanning electron microscopy (SEM) and infrared spectroscopy analysis demonstrated that in TiO2@Rib, riboflavin was loaded in a non-aggregated form within the nanochannels, while in Rib@TiO2, riboflavin crystals were adsorbed on the surface of TiO2. Additionally, TiO2@Rib solution was stored for five days without exhibiting any significant precipitation, indicating its exceptional dispersion stability in water. Furthermore, TiO2@Rib demonstrated the highest generation capacity of singlet oxygen (1O2) and hydroxyl radicals (·OH). After 60 min of irradiation under a 450 nm blue LED matrix light source, the degradation rate of 1,3,6,8-tetrabromocarbazole, an emerging foodborne hazard, by TiO2@Rib was 56.41%, which was 1.64-fold higher than that of riboflavin. This study provides new insights and experimental evidence for optimizing the construction of low-toxicity, high-efficiency food pigment-sensitized TiO2 composite photocatalysts and their application in the photocatalytic degradation of emerging foodborne hazards in aquatic products.

Key words: riboflavin; TiO2; dye sensitization; photocatalytic degradation; 1,3,6,8-tetrabromocarbazole

中图分类号:

李洁，张冰清，魏然，焦龙，张晓晔，陈翔，张宾. 核黄素敏化二氧化钛光催化剂的制备及其对新型食源性危害物1,3,6,8-四溴咔唑光催化降解性能[J]. 食品科学, 2025, 46(22): 72-79.

LI Jie, ZHANG Bingqing, WEI Ran, JIAO Long, ZHANG Xiaoye, CHEN Xiang, ZHANG Bin. Preparation of Riboflavin-Sensitized Titanium Dioxide Photocatalysts and Their Photocatalytic Degradation of the Emerging Foodborne Hazard 1,3,6,8-Tetrabromocarbazole[J]. FOOD SCIENCE, 2025, 46(22): 72-79.

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核黄素敏化二氧化钛光催化剂的制备及其对新型食源性危害物1,3,6,8-四溴咔唑光催化降解性能

Preparation of Riboflavin-Sensitized Titanium Dioxide Photocatalysts and Their Photocatalytic Degradation of the Emerging Foodborne Hazard 1,3,6,8-Tetrabromocarbazole

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