首页|水热反应温度对ZnIn2S4/Bi2WO6复合催化剂的影响研究

水热反应温度对ZnIn2S4/Bi2WO6复合催化剂的影响研究

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为解决传统半导体光催化剂可见光响应能力弱、光生电子空穴复合快、能带结构导致载流子氧化还原能力弱等问题,采用水热法制备ZnIn2 S4/Bi2 WO6(ZlS@BW)复合催化剂并系统研究水热反应温度对其结构性能的影响.当水热温度从80 ℃升高到160 ℃,ZlS@BW复合光催化剂结晶度提高,形貌转变为致密核壳结构,比表面积和光电性能先降低再升高,氟伐他汀去除率逐步上升.而当温度升高到200 ℃时,核壳结构遭到了破坏,比表面积和光电性能变差,氟伐他汀的降解效果降低,光催化性能下降.结果表明,水热温度为160 ℃时,制备的ZlS@BW复合光催化剂晶型结晶程度较高,且形貌致密,比表面积最大,产生的瞬态光电流最大,阻抗半径最小,具有最优光催化性能.对污染物氟伐他汀降的降解效率最高,可达到75.47％.
Effect of hydrothermal reaction temperature on ZnIn2S4/Bi2WO6 composite catalyst
The ZnIn2S4/Bi2WO6(ZlS@BW)composite photocatalyst was prepared by hydrothermal method with different temperature to solve the problems of traditional semiconductor photocatalysts,such as weak response to visible light,fast recombination of photogenerated electron-hole and weak redox ability of carrier caused by energy band structure.When the hydrothermal temperature increased from 80 ℃ to 160 ℃,the crystallization of ZlS@BW composite photocatalyst increased,the morphology became denser core-shell structure,the specific surface area and photoelectric property first decreased and then increased and the removal rate of fluvastatin gradually increased.When the temperature increased to 200 ℃,the core-shell structure was destroyed,the spe-cific surface area and photoelectric properties decreased,the degradation of fluvastatin was inhibited.The re-sults showed that the ZlS@BW composite photocatalyst prepared at hydrothermal temperature of 160 ℃ with high crystallization,compact morphology,maximum specific surface area,maximum transient photocurrent and minimum impedance radius.The excellent photocatalytic performance was also observed and 75.47％of flu-vastatin was degraded.

hydrothermal methodhydrothermal reaction temperatureZnIn2S4/Bi2WO6 composite photocatalystphotocatalysis

王震、刘婷婷、张强、王磊

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西安建筑科技大学环境与市政工程学院,西安 710055

陕西省膜分离重点实验室,西安 710055

西北水资源与环境生态教育部重点实验室,西安 710055

西安工程大学环境与化学工程学院,西安 710055

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水热法 水热反应温度 ZnIn2S4/Bi2WO6复合催化剂 光催化

中国博士后科学基金项目陕西省高校科协青年人才托举计划项目陕西省重点产业创新链(群)项目西北水资源与环境生态教育部重点实验室开放基金陕西省教育厅自然科学专项科研计划项目西安市碑林区科技计划项目

2023MD734204202104242022ZDLSF06-052022SZY0223JK0458GX2208

2024

10.3969/j.issn.1001-9731.2024.07.024

功能材料
重庆材料研究院 中国仪器仪表学会仪表材料学会

功能材料

CSTPCD北大核心
影响因子：0.918
ISSN：1001-9731
年,卷(期)：2024.55(7)