Hydrogenation-induced surface oxygen vacancies in BiFeO3 nanoparticles for enhanced visible light photocatalytic performance

2016 ◽  
Vol 688 ◽  
pp. 399-406 ◽  
Author(s):  
Sen Wang ◽  
Da Chen ◽  
Feng Niu ◽  
Ning Zhang ◽  
Laishun Qin ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxygen Vacancies ◽  
Photocatalytic Performance ◽  
Surface Oxygen ◽  
Bifeo3 Nanoparticles ◽  
Visible Light Photocatalytic

Surface oxygen vacancy and defect engineering of WO3 for improved visible light photocatalytic performance

2018 ◽  
Vol 8 (17) ◽  
pp. 4399-4406 ◽  
Author(s):  
Qi Liu ◽  
Fengjiao Wang ◽  
Huaxiang Lin ◽  
Yanyu Xie ◽  
Na Tong ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Photogenerated Electron ◽  
Vacancy Defect ◽  
Surface Oxygen ◽  
Defect Engineering ◽  
Electron Hole ◽  
Surface Oxygen Vacancy ◽  
Visible Light Photocatalytic

Compared to the pristine WO3, the oxygen vacancy defect levels of the sub-stoichiometric WO3−X narrow the bandgap and promote the separation of photogenerated electron–hole pairs.

Bi-modified 3D BiOBr microsphere with oxygen vacancies for efficient visible-light photocatalytic performance

2019 ◽  
Vol 54 (13) ◽  
pp. 9397-9413 ◽  
Author(s):  
Chenghe Hua ◽  
Xiaoli Dong ◽  
Yu Wang ◽  
Nan Zheng ◽  
Hongchao Ma ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxygen Vacancies ◽  
Photocatalytic Performance ◽  
Visible Light Photocatalytic

scholarly journals Enhanced charge separation and increased oxygen vacancies of h-BN/OV-BiOCl for improved visible-light photocatalytic performance

RSC Advances ◽  
2019 ◽  
Vol 9 (25) ◽  
pp. 14286-14295 ◽  
Author(s):  
Wenhui He ◽  
Yawen Wang ◽  
Caimei Fan ◽  
Yunfang Wang ◽  
Xiaochao Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Charge Separation ◽  
Oxygen Vacancies ◽  
Photocatalytic Performance ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Photocatalytic

h-BN/OV-BiOCl composites were prepared to improve the visible-light photocatalytic activity of OV-BiOCl.

Facile synthesis of oxygen-deficient nano-TiO2 coordinated by acetate ligands for enhanced visible-light photocatalytic performance

2020 ◽  
Vol 10 (12) ◽  
pp. 3875-3889 ◽  
Author(s):  
Shaohua Pang ◽  
Yunfei Lu ◽  
Lin Cheng ◽  
Juming Liu ◽  
Huiyan Ma ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Phenol Degradation ◽  
Surface Oxygen ◽  
Facile Synthesis ◽  
Nano Tio2 ◽  
Vacancy Defects ◽  
Surface Oxygen Vacancy ◽  
Visible Light Photocatalytic

Surface oxygen vacancy defects and acetate ligands can synergistically enhance the visible-light photocatalytic activity of nano-TiO2 for phenol degradation.

Hydrogenated LaFeO3 with oxygen vacancies for Enhanced Visible light photocatalytic performance

2020 ◽  
Vol 46 (4) ◽  
pp. 5315-5322
Author(s):  
Jinming Shi ◽  
Yue Chang ◽  
Yuanshun Tang ◽  
Xuanbo Wang ◽  
Xuefei Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxygen Vacancies ◽  
Photocatalytic Performance ◽  
Visible Light Photocatalytic

scholarly journals Construction of Ag3PO4/SnO2 Heterojunction on Carbon Cloth with Enhanced Visible Light Photocatalytic Degradation

2020 ◽  
Vol 10 (9) ◽  
pp. 3238
Author(s):  
Min Liu ◽  
Guangxin Wang ◽  
Panpan Xu ◽  
Yanfeng Zhu ◽  
Wuhui Li
Keyword(s):  
Visible Light ◽  
Photocatalytic Performance ◽  
Separation Efficiency ◽  
Photogenerated Electron ◽  
Carbon Cloth ◽  
Electron Hole ◽  
Step Process ◽  
Photogenerated Electrons ◽  
Rapid Transfer ◽  
Visible Light Photocatalytic

In this study, the Ag3PO4/SnO2 heterojunction on carbon cloth (Ag3PO4/SnO2/CC) was successfully fabricated via a facile two-step process. The results showed that the Ag3PO4/SnO2/CC heterojunction exhibited a remarkable photocatalytic performance for the degradation of Rhodamine B (RhB) and methylene blue (MB), under visible light irradiation. The calculated k values for the degradation of RhB and MB over Ag3PO4/SnO2/CC are 0.04716 min−1 and 0.04916 min−1, which are higher than those calculated for the reactions over Ag3PO4/SnO2, Ag3PO4/CC and SnO2/CC, respectively. The enhanced photocatalytic activity could mainly be attributed to the improved separation efficiency of photogenerated electron-hole pairs, after the formation of the Ag3PO4/SnO2/CC heterojunction. Moreover, carbon cloth with a large specific surface area and excellent conductivity was used as the substrate, which helped to increase the contact area of dye solution with photocatalysts and the rapid transfer of photogenerated electrons. Notably, when compared with the powder catalyst, the catalysts supported on carbon cloth are easier to quickly recycle from the pollutant solution, thereby reducing the probability of recontamination.

scholarly journals Enhanced Visible-Light Photocatalytic Performance of SAPO-5-Based g-C3N4 Composite for Rhodamine B (RhB) Degradation

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3948
Author(s):  
Lingfang Qiu ◽  
Zhiwei Zhou ◽  
Mengfan Ma ◽  
Ping Li ◽  
Jinyong Lu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Redox Reactions ◽  
Photocatalytic Performance ◽  
Dye Degradation ◽  
Thermal Polymerization ◽  
Light Illumination ◽  
Electron Hole ◽  
Visible Light Illumination ◽  
Visible Light Photocatalytic

Novel visible-light responded aluminosilicophosphate-5 (SAPO-5)/g-C3N4 composite has been easily constructed by thermal polymerization for the mixture of SAPO-5, NH4Cl, and dicyandiamide. The photocatalytic activity of SAPO-5/g-C3N4 is evaluated by degrading RhB (30 mg/L) under visible light illumination (λ > 420 nm). The effects of SAPO-5 incorporation proportion and initial RhB concentration on the photocatalytic performance have been discussed in detail. The optimized SAPO-5/g-C3N4 composite shows promising degradation efficiency which is 40.6% higher than that of pure g-C3N4. The degradation rate improves from 0.007 min−1 to 0.022 min−1, which is a comparable photocatalytic performance compared with other g-C3N4-based heterojunctions for dye degradation. The migration of photo-induced electrons from g-C3N4 to the Al site of SAPO-5 should promote the photo-induced electron-hole pairs separation rate of g-C3N4 efficiently. Furthermore, the redox reactions for RhB degradation occur on the photo-induced holes in the g-C3N4 and Al sites in SAPO-5, respectively. This achievement not only improves the photocatalytic activity of g-C3N4 efficiently, but also broadens the application of SAPOs in the photocatalytic field.

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