171869-78-6Relevant articles and documents
The boosted photocatalytic activity over perylene diimide modified Bi2O4 hybrid photocatalyst with internal electric field
Zhang, Xiaoli,Shi, Lei,Yao, Lizhu,Cui, Lishuang
, (2021/10/12)
In this paper, an organic-inorganic perylene diimide modified Bi2O4 (PDI/Bi2O4) composite photocatalyst was successfully prepared. Its apparent morphology, chemical structure, element composition and chemical state were measured through XRD, XPS, TEM and DRS. It is observed that because of formed an internal electric field, PDI nanorods are well attached to the surface of Bi2O4 nanorods, and a compact interfacial contact is formed, which greatly accelerates the migration rate of photogenerated carriers. When the PDI/Bi2O4 composite photocatalyst was used to degrade Rhodamine B, the reaction rate was 0.169 min-1, which was 7.3 folds more than Bi2O4, and could maintain 80% after three times recycling experiments. Then, combined with the electronic band structure of PDI and Bi2O4, type Ⅱ photocatalytic mechanism is speculated.
Monoclinic dibismuth tetraoxide (m-Bi2O4) for piezocatalysis: new use for neglected materials
Liu, Fengling,Chen, Haoxuan,Xu, Chenmin,Wang, Linlin,Qiu, Pengxiang,Gao, Shuo,Zhu, Jiawei,Zhang, Shuai,Guo, Zhaobing
supporting information, p. 2740 - 2743 (2021/03/22)
Piezocatalysis is a promising approach for environmental pollutant removal. Monoclinic dibismuth tetraoxide (m-Bi2O4) was first applied to piezocatalyze organics under ultrasonic vibration. The built-in electric field with ultrasonic stress drives the separation of holes and electrons inm-Bi2O4. Its excellent piezocatalytic activity, reusability and chemical stability makem-Bi2O4a new candidate of piezocatalysis.
Hydrothermal synthesis of Ca3Bi8O15 rods and their visible light photocatalytic properties
Li, Wenjuan,Kong, Desheng,Cui, Xiaoli,Du, Dandan,Yan, Tingjiang,You, Jinmao
, p. 69 - 73 (2014/01/17)
High efficient visible light Ca3Bi8O15 photocatalysts were synthesized by a hydrothermal method. Characterized by X-ray diffractometer, transmission electron microscopy, and the UV-vis diffuse reflectance spectroscopy, the results showed that the novel Ca 3Bi8O15 rods can utilize the sunlight efficiently with the small band-gap. Using methyl orange (MO) as a model organic pollutant, the photocatalysts exhibited good photocatalytic activity, with the photodegradation conversion ratio of MO being up to 90% after 2 h of visible light (420 nm 2·- and OH.
