光催化
罗丹明B
材料科学
掺杂剂
可见光谱
表面等离子共振
兴奋剂
光化学
化学工程
双酚A
催化作用
纳米技术
纳米颗粒
化学
光电子学
有机化学
复合材料
环氧树脂
工程类
作者
Chenghe Hua,Jiawei Wang,Xiaoli Dong,Yu Wang,Nan Zheng,Ming Xue,Xinxin Zhang
标识
DOI:10.1016/j.seppur.2020.117119
摘要
Plasmonic Bi metal and I− dopant co-modified Bi2WO6 photocatalysts were successfully fabricated through a one-pot solvothermal method. The samples were characterized by multiple techniques to explore their crystalline structures, surface morphologies, photoelectric properties and photocatalytic performance. The photocatalytic activity of I-Bi/Bi2WO6 samples was evaluated by degrading diverse organic pollutants, including colorless Bisphenol A (BPA), cationic dye Rhodamine B (RhB), anionic dye Congo red (CoR), antibiotic Sulfamethoxazole (SX) and pesticide Atrazine (AZ). The results revealed that 1/5 I-Bi/Bi2WO6 (I:W = 1:5) possessed the best photocatalytic performance for degrading BPA, RhB, CoR, SX and AZ. The improved photocatalytic performance was mainly attributed to the enhanced the visible light harvesting caused by the impurity level generated via the I− dopant and effective separation and migration of photoinduced charge carriers. Moreover, the SPR effect of metallic Bi is also a key factor for the enhancement of photocatalytic performance. Additionally, the 1/5 I-Bi/Bi2WO6 sample also showed excellent photochemical stability after five cyclic tests. This work could be a basic platform for investigating impurity doping and surface metallization co-modified photocalysts with remarkable photocatalytic performance for the environmental pollution degradation.
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