磁性四氧化三铁/钒酸铋/二氧化钛纳米晶的制备及光催化性能表征  

Synthesis and photocatalytic properties of magnetic nanocrystalline ferroferric oxide/bismuth vanadate/titanium dioxide

作　　者：周金肖 田甜 高雯雯[1,2] 白小慧 弓莹[1,2] Zhou jinxiao;Tian tian;Gao Wenwen;Bai xiaohui;Gong Ying(School of Chemistry and Chemical Engineering,Yulin University,Yulin 719000,Shaanxi,China;Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization,Yulin 719000,Shaanxi,China)

机构地区：[1]榆林学院化学与化工学院,陕西榆林719000 [2]陕西省低变质煤洁净利用重点实验室,陕西榆林719000

出　　处：《工业催化》2023年第1期29-33,共5页Industrial Catalysis

基　　金：国家自然科学基金资助项目(52062047);陕西省教育厅重点科学研究计划项目(重点实验室项目)(21JS043);榆林市科技局项目(CXY-2020-002-02);榆林市高新区科技计划项目(CXY-2021-43)。

摘　　要：以硫酸氧钛、偏钒酸铵和氯化亚铁等试剂为原料,制备磁性二氧化钛钒酸铋(Fe_(3)O_(4)-TiO_(2)-BiVO_(4))复合光催化剂,通过扫描电子显微镜(SEM)、X射线衍射(XRD)、傅立叶红外光谱(FT-IR)和紫外-可见漫反射光谱(UV-Vis DRS)对其进行表征。以刚果红为模拟降解对象,在可见光照射下,使用质量均为0.05 g的磁性二氧化钛钒酸铋对浓度20 mg·L^(-1)的刚果红溶液进行光催化降解,结果表明,在自然光光照240 min条件下,降解率达70.0%。Magnetic titanium dioxide bismuth vanadate(Fe_(3)O_(4)-TiO_(2)-BiVO_(4)) composite photocatalysts were prepared from titanium oxide sulfate,ammonium metavanadate,and ferrous chloride reagents,and characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),Fourier infrared spectroscopy(FT-IR),and UV-Vis diffuse reflectance spectroscopy(UV-Vis DRS).The photocatalytic degradation of Congo red solution at a concentration of 20 mg·L^(-1) was carried out under visible light irradiation using magnetic titanium dioxide vanadate of 0.05 g.The results showed that the photocatalytic degradation of Congo red solution was 70.0 % at 240 min of natural light.

关 键 词：催化化学 二氧化钛 钒酸铋 磁性四氧化三铁 降解 光催化 

分 类 号：TQ034[化学工程] O643.36[理学—物理化学]