Optimization of the experimental conditions of hydrogen production by the Pt–(CdS/ZnS) system under visible light illumination

RSC Advances ◽  
2016 ◽  
Vol 6 (43) ◽  
pp. 36681-36688 ◽  
Author(s):  
Katherine Villa ◽  
Xavier Domènech ◽  
Ulises M. García-Pérez ◽  
José Peral
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Generation ◽  
Light Illumination ◽  
Experimental Conditions ◽  
Visible Light Illumination

The photocatalytic activity of a Pt–(CdS/ZnS) system towards hydrogen generation from water and in presence of a sacrificial organic is studied.

Preparation of Uniform BiOI Nanoflowers with Visible Light-Induced Photocatalytic Activity

2016 ◽  
Vol 69 (2) ◽  
pp. 212 ◽  
Author(s):  
Feng Cao ◽  
Xin Lv ◽  
Jun Ren ◽  
Linqing Miao ◽  
Jianmin Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Diethylene Glycol ◽  
Solvothermal Method ◽  
Photocatalytic Property ◽  
Light Illumination ◽  
Hydrothermal Time ◽  
Experimental Conditions ◽  
Visible Light Illumination ◽  
Facile Solvothermal Method

Novel 3D flower-like bismuth oxyiodide (BiOI) nanomaterials were obtained via a facile solvothermal method using bismuth nitrate (Bi(NO3)3) and potassium iodide (KI) as precursors and diethylene glycol as the capping reagent. The morphology of the BiOI nanoarchitecture strongly depends on the experimental conditions such as the presence of diethylene glycol and hydrothermal time. The photocatalytic property of the BiOI nanostructures by monitoring the degradation of rhodamine B (RhB) and methyl orange (MO) mixed dyes was studied under visible light illumination, which has not been reported previously. The degradation of single cationic RhB dye is faster when compared with that of anionic MO dye. This result is due to the surface negative charges on the BiOI nanoflowers that display good selectivity towards positive RhB dye organic groups owing to electrostatic attraction.

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.

Ultrathin CdS shell-sensitized hollow S-doped CeO2 spheres for efficient visible-light photocatalysis

2019 ◽  
Vol 9 (6) ◽  
pp. 1357-1364 ◽  
Author(s):  
Ning-Chao Zheng ◽  
Ting Ouyang ◽  
Yibo Chen ◽  
Zhu Wang ◽  
Di-Yun Chen ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Shell Structure ◽  
Evolution Rate ◽  
Light Illumination ◽  
Visible Light Photocatalysis ◽  
Visible Light Illumination ◽  
Excellent Photocatalytic Activity ◽  
Systematic Effects ◽  
Doped Ceo2

By virtue of the systematic effects of S-doping on CeO2 and the ultrathin shell structure of CdS, the CeO2−xSx@CdS nanocomposite exhibits excellent photocatalytic activity under visible-light illumination for both H2 evolution (rate up to 1147.2 μmol g−1 h−1) and RhB degradation (efficiency reached 99.8%) as compared to CeO2, CeO2−xSx, and CdS.

Hollow BiVO4/Bi2S3 cruciate heterostructures with enhanced visible-light photoactivity

2019 ◽  
Vol 9 (1) ◽  
pp. 182-187 ◽  
Author(s):  
Chen Zhuang ◽  
Lanqin Tang ◽  
Zhentao Yu ◽  
Tianxiao Peng ◽  
Yongcai Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Anion Exchange ◽  
Light Illumination ◽  
Photocurrent Response ◽  
Exchange Reactions ◽  
Visible Light Illumination

Unique BiVO4/Bi2S3 cruciate hollow heterostructures are successfully constructed via anion exchange reactions using cruciate BiVO4 as templates and precursors. The hollow heterostructures exhibit excellent enhanced photocurrent response and photocatalytic activity for reduction of Cr6+ under visible-light illumination.

Novel mesoporous NiO/TiO2 nanocomposites with enhanced photocatalytic activity under visible light illumination

2018 ◽  
Vol 44 (6) ◽  
pp. 7047-7056 ◽  
Author(s):  
M. Faisal ◽  
Farid A. Harraz ◽  
Adel A. Ismail ◽  
Ahmed Mohamed El-Toni ◽  
S.A. Al-Sayari ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Light Illumination ◽  
Visible Light Illumination

SrTaO2N co-doped with La/Zr as promising photocatalysts for water reduction under visible light illumination

2020 ◽  
Vol 7 (12) ◽  
pp. 2343-2351
Author(s):  
Ran Wang ◽  
Guoan Lin ◽  
Xiaoxiang Xu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Charge Separation ◽  
Light Illumination ◽  
Visible Light Absorption ◽  
Water Reduction ◽  
Co Doping ◽  
Visible Light Illumination ◽  
Co Doped ◽  
Separation Conditions

La/Zr co-doping preserves visible light absorption of SrTaO2N, prohibits the formation of defects, improves surface hydrophilicity and charge separation conditions, all of which contribute to an enhanced photocatalytic activity for water reduction.

A bio-photoelectrochemical cell with a MoS3-modified silicon nanowire photocathode for hydrogen and electricity production

2014 ◽  
Vol 7 (9) ◽  
pp. 3033-3039 ◽  
Author(s):  
Guo-Long Zang ◽  
Guo-Ping Sheng ◽  
Chen Shi ◽  
Yun-Kun Wang ◽  
Wen-Wei Li ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Silicon Nanowire ◽  
Photoelectrochemical Cell ◽  
Electricity Production ◽  
Light Illumination ◽  
Visible Light Illumination

A bio-photoelectrochemical cell with a bioanode and a MoS3/SiNW photocathode is successfully constructed for hydrogen production under visible light illumination.

Polypyrrole-Decorated Ag-TiO2 Nanofibers Exhibiting Enhanced Photocatalytic Activity under Visible-Light Illumination

2013 ◽  
Vol 5 (13) ◽  
pp. 6201-6207 ◽  
Author(s):  
Yucheng Yang ◽  
Junwei Wen ◽  
Jianhong Wei ◽  
Rui Xiong ◽  
Jing Shi ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Light Illumination ◽  
Tio2 Nanofibers ◽  
Visible Light Illumination
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