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 ◽  
...  

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

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92033-92041 ◽  
Author(s):  
Xin Liu ◽  
Ailing Jin ◽  
Yushuai Jia ◽  
Junzhe Jiang ◽  
Na Hu ◽  
...  

An efficient composite photocatalyst fabricated by dispersing ultrafine Fe2O3 nanocrystals onto g-C3N4 nanosheets via a facile deposition-precipitation method shows significantly enhanced photocatalytic performance under visible light irradiation.


RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 17667-17675 ◽  
Author(s):  
Jian-Wen Shi ◽  
Chang Liu ◽  
Chi He ◽  
Jun Li ◽  
Chong Xie ◽  
...  

C-doped TiO2 nanoplates (CTNP) with exposed {001} facets were synthesized for the first time. The obtained CTNP presented high visible-light photocatalytic activity. A reasonable mechanism of photocatalysis on CTNP under visible light was proposed.


2018 ◽  
Vol 8 (17) ◽  
pp. 4399-4406 ◽  
Author(s):  
Qi Liu ◽  
Fengjiao Wang ◽  
Huaxiang Lin ◽  
Yanyu Xie ◽  
Na Tong ◽  
...  

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.


2016 ◽  
Vol 45 (18) ◽  
pp. 7720-7727 ◽  
Author(s):  
Chao Liu ◽  
Xiao-jing Wang

Bi4O5I2 and Bi5O7I ultrathin nanosheets with a high visible-light photocatalytic activity for phenol degradation are prepared via a facile route at room temperature.


Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3948
Author(s):  
Lingfang Qiu ◽  
Zhiwei Zhou ◽  
Mengfan Ma ◽  
Ping Li ◽  
Jinyong Lu ◽  
...  

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.


2017 ◽  
Vol 46 (37) ◽  
pp. 12675-12682 ◽  
Author(s):  
Taotao Lv ◽  
Di Li ◽  
Yuanzhi Hong ◽  
Bifu Luo ◽  
Dongbo Xu ◽  
...  

The development of Z-scheme heterojunction photocatalytic systems is a promising strategy to produce hydrogen and for pollutant degradation.


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