Solvothermal synthesis and enhanced visible-light photocatalytic decontamination of bisphenol A (BPA) by g-C3N4/BiOBr heterojunctions
Solvothermal synthesis and enhanced visible-light photocatalytic decontamination of bisphenol A (BPA) by g-C3N4/BiOBr heterojunctions
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g-C3N4/BiOBr 异质结的溶剂热合成和增强可见光光催化净化双酚 A (BPA)
DOI：
10.1016/j.mssp.2014.02.036
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发表时间：
2014-08
影响因子：
4.1
通讯作者：
He, Minqing
中科院分区：
文献类型：
--
作者：
Xu, Hui;Xu, Li;Shu, Huoming;He, Minqing
在可反应离子液体 1-十六烷基-3-甲基溴化咪唑鎓 ([C16mim]Br) 存在下，通过 EG 辅助溶剂热法合成了类石墨 C3N4 杂化 BiOBr 光催化剂。通过X射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、能量色散X射线光谱（EDS）、漫反射光谱（DRS）、光致发光（PL）光谱和光电流对所制备的样品进行了表征。 g-C3N4/BiOBr光催化剂在可见光照射下表现出高效降解双酚A（BPA）和罗丹明B（RhB）。结果表明，BiOBr 上负载一定量的 g-C3N4 会导致可见光照射下光催化活性的增加，并且表现出比纯 BiOBr 样品更高的光催化活性。增强的光催化性能可归因于光生电子空穴对的高分离效率。自由基捕获实验表明空穴是光催化降解RhB的主要反应物种。提出了g-C3N4/BiOBr增强可见光性能的可能机制。
Graphite-like C3N4hybridized BiOBr photocatalysts have been synthesized through an EG-assisted solvothermal process in the presence of reactable ionic liquid 1-hexadecyl-3-methylimidazolium bromide ([C16mim]Br). The as-prepared samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy and photocurrent. The g-C3N4/BiOBr photocatalysts showed high efficiency for the degradation of bisphenol A (BPA) and rhodamine B (RhB) under visible light irradiation. The results assumed that a loading amount of g-C3N4over BiOBr lead to an increase of the photocatalytic activity under visible light irradiation and showed much higher photocatalytic activity than that of pure BiOBr sample. The enhanced photocatalytic performance could be attributed to the high separation efficiency of the photogenerated electron–hole pairs. The trapping experiments of radicals showed that hole was the main reactive species for the photocatalytic degradation of RhB. A possible mechanism of g-C3N4/BiOBr on the enhancement of visible light performance was proposed.
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影响因子：
--
作者：
H. Deng;Junwei Wang;Q. Peng;Xun Wang;Yadong Li
通讯作者：
H. Deng;Junwei Wang;Q. Peng;Xun Wang;Yadong Li
影响因子：
15
作者：
Yuanjian Zhang;Arne Thomas;M. Antonietti;Xinchen Wang
通讯作者：
Yuanjian Zhang;Arne Thomas;M. Antonietti;Xinchen Wang
影响因子：
3.7
作者：
Xi Zhang;Zhihui Ai;Falong Jia;Lizhi Zhang
通讯作者：
Xi Zhang;Zhihui Ai;Falong Jia;Lizhi Zhang
可见光下分级溴化铋纳米板微球高效光催化去除室内空气中的NO
影响因子：
11.4
作者：
Ai, Zhihui;Ho, Wingkei;Zhang, Lizhi
通讯作者：
Zhang, Lizhi
具有协同光催化活性的新型可见光驱动AgX/类石墨C3N4 (X = Br, I)杂化材料
影响因子：
22.1
作者：
Xu, Hui;Yan, Jia;Wan, Huilin
通讯作者：
Wan, Huilin