Iodide surface decoration: a facile and efficacious approach to modulating the band energy level of semiconductors for high-performance visible-light photocatalysis

2016 ◽  
Vol 52 (2) ◽  
pp. 354-357 ◽  
Author(s):  
Hongwei Huang ◽  
Ke Xiao ◽  
Shixin Yu ◽  
Fan Dong ◽  
Tierui Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
High Performance ◽  
Photocatalytic Performance ◽  
Dye Degradation ◽  
Wide Band ◽  
Wide Band Gap ◽  
Surface Decoration ◽  
Tunable Band Gap ◽  
Visible Light Photocatalytic

Iodide surface decoration enables the wide-band-gap Bi2O2CO3 to possess a continuously tunable band gap and profoundly boosted visible-light photocatalytic performance for dye degradation and NO removal.

Sulfur-doping synchronously ameliorating band energy structure and charge separation achieving decent visible-light photocatalysis of Bi2O2CO3

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 94361-94364 ◽  
Author(s):  
Hongwei Huang ◽  
Ke Xiao ◽  
Fan Dong ◽  
Jinjian Wang ◽  
Xin Du ◽  
...  
Keyword(s):  
Visible Light ◽  
Charge Separation ◽  
Photocatalytic Performance ◽  
Dye Degradation ◽  
Wide Band ◽  
Energy Structure ◽  
Wide Band Gap ◽  
Band Energy ◽  
Sulfur Doping ◽  
Visible Light Photocatalytic

Sulfur doping simultaneously endows the wide-band-gap Bi2O2CO3 promoted band energy structure and charge separation achieving enhanced visible-light photocatalytic performance for dye degradation and NO removal.

p-BiOI/n-SnS2 heterojunction flowerlike structure with enhanced visible-light photocatalytic performance

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15469-15478 ◽  
Author(s):  
Tingting Wang ◽  
Hui Meng ◽  
Xiang Yu ◽  
Yizhu Liu ◽  
Hongbin Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Photocatalytic Performance ◽  
Narrow Band ◽  
Wide Band ◽  
Wide Band Gap ◽  
Electron Hole ◽  
Flowerlike Structure ◽  
P Type ◽  
Visible Light Photocatalytic

A flowerlike BiOI/SnS2 p–n junction is prepared. P–n junction is formed by wide-band-gap n-type SnS2 and narrow-band-gap p-type BiOI. The p–n junction lead to improved electron–hole separation and enhancement in photocatalytic performance.

Enhanced visible light photocatalytic activity in BiOCl/SnO2: heterojunction of two wide band-gap semiconductors

RSC Advances ◽  
2015 ◽  
Vol 5 (29) ◽  
pp. 22740-22752 ◽  
Author(s):  
Menglin Sun ◽  
Qihang Zhao ◽  
Chunfang Du ◽  
Zhiliang Liu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Photocatalytic Performance ◽  
Wide Band ◽  
Wide Band Gap ◽  
Visible Light Photocatalytic Activity ◽  
Solution Route ◽  
Wide Band Gap Semiconductors ◽  
Visible Light Photocatalytic

A series of BiOCl/SnO2 heterojunctions exhibiting exceptional visible light photocatalytic performance has been successfully prepared using a two-step solution route.

BaTiO3–graphene nanocomposites: synthesis and visible light photocatalytic activity

2015 ◽  
Vol 39 (6) ◽  
pp. 4407-4413 ◽  
Author(s):  
Rui-Xia Wang ◽  
Qing Zhu ◽  
Wan-Sheng Wang ◽  
Cong-Min Fan ◽  
An-Wu Xu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Wide Band ◽  
Wide Band Gap ◽  
Graphene Nanocomposites ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Photocatalytic

The new role of graphene as a macromolecular photosensitizer transforms the wide band gap BaTiO3 to have visible light photoactivity.

Enhanced extrinsic absorption promotes the visible light photocatalytic activity of wide band-gap (BiO)2CO3 hierarchical structure

RSC Advances ◽  
2014 ◽  
Vol 4 (99) ◽  
pp. 56307-56312 ◽  
Author(s):  
Ting Xiong ◽  
Fan Dong ◽  
Zhongbiao Wu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Hierarchical Structure ◽  
Wide Band ◽  
Wide Band Gap ◽  
Visible Light Photocatalytic Activity ◽  
Hierarchical Microspheres ◽  
Extrinsic Absorption ◽  
Visible Light Photocatalytic

(BiO)2CO3 hierarchical microspheres showed higher visible light photocatalytic activity due to enhanced extrinsic absorption benefiting from light reflecting and scattering.

scholarly journals Enhanced piezo-photocatalytic performance by piezoelectric and visible light photoexcitation coupling through piezoelectric Na0.5Bi0.5TiO3 micron crystals

RSC Advances ◽  
2020 ◽  
Vol 10 (13) ◽  
pp. 7443-7451 ◽  
Author(s):  
Renjie Zhang ◽  
Xinyan Wu ◽  
Yanqiang Li ◽  
Weiquan Shao ◽  
Yongcheng Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Ultrasonic Vibration ◽  
Visible Light Irradiation ◽  
Degradation Rate ◽  
Photocatalytic Performance ◽  
Wide Band ◽  
Light Irradiation ◽  
Wide Band Gap ◽  
High Degradation Rate

The Na0.5Bi0.5TiO3 with wide band gap exhibits high degradation rate for RhB under ultrasonic vibration and visible light irradiation.

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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