三元高阶Bi_(3.64)Mo_(0.36)O_(6.55)纳米晶的合成及其可见光催化性能  

Preparation of Ternary High-ordered Bi_(3.64)Mo_(0.36)O_(6.55) Nanocrystal and Its Visible Light Photocatalytic Property

作　　者：童惠娟[1] 钱雪慧 江婉 王静 朱嫒佳 孙雨婷 TONG Hui-juan;QIAN Xue-hui;JIANG Wan;WANG Jing;ZHU Yuan-jia;SUN Yu-ting(School of Energy Materials and Chemical Engineering,Hefei University,Hefei Anhui 230601)

机构地区：[1]合肥学院能源材料与化工学院,安徽合肥230601

出　　处：《巢湖学院学报》2021年第6期93-97,105,共6页Journal of Chaohu University

基　　金：国家级大学生创新创业项目(项目编号:202011059120);安徽省级大学生创新创业项目(项目编号:S202011059031、S202011059032)。

摘　　要：研究采用简捷化学浴和超声波辅助液相化学合成技术,制备出了2种非化学计量比的三元高阶Bi_(3.64) Mo_(0.36)O_(6.550纳米光催化剂。通过X-射线衍射分析(XRD)、场发射扫描电子显微镜(FESEM)和固体紫外-可见光学吸收光谱(Uv-Vis DRS)对所制得的样品进行了物相、形貌和光学性质的测试与表征。结果表明,经超声波辅助反应得到的Bi_(3.64)Mo_(0.36)O_(6.55)纳米晶(BMO-1)为纯立方相准立方体形的纳米颗粒,粒径约为30~50 nm。以有机染料亚甲基蓝(MB)为分子探针,以氙灯为可见光光源,光催化降解实验表明BMO-1的表观速率常数分别是化学浴法制得的纳米晶(BMO-2)和商业化纳米TiO_(2)(P25)的1.8倍和15.5倍,体现了更优的可见光催化降解有机污染物性能。The nonstoichiometric Bi_(3.64)Mo_(0.36)O_(6.55) photocatalysts were synthesized by a chemical bathing method and a wet ultrasonic-assisted chemical synthesis method respectively.The phase,morphology and optical property of as-prepared products were investigated by X-ray diffraction(XRD),field emission scanning microscopy(FESEM)and optical absorption spectrum.The results showed that BMO-1 products obtained by sonochemistry reaction are single cubic crystal quasi-cubric nanoparticles with about 30~50 nm in diameter.The photocatalytic performance was evaluated by the degradation organic dye MB under the xenon lamp irradiation.Findings suggested that BMO-1 samples display the superior photocatalytic activity,of which the apparent reaction rate constant is 1.8 and 15.5 times that of BMO-2 and commercial nano TiO_(2)(P25)respectively.

关 键 词：化学液相合成 钼酸铋 光催化剂 可见光催化 水处理 

分 类 号：O611.62[理学—无机化学] O614.12[理学—化学]