Photoelectrochemical reduction of CO2 in water under visible-light irradiation by a p-type InP photocathode modified with an electropolymerized ruthenium complex

2010 ◽  
Vol 46 (37) ◽  
pp. 6944 ◽  
Author(s):  
Takeo Arai ◽  
Shunsuke Sato ◽  
Keiko Uemura ◽  
Takeshi Morikawa ◽  
Tsutomu Kajino ◽  
...  
2018 ◽  
Vol 43 (39) ◽  
pp. 18185-18193 ◽  
Author(s):  
Kaykobad Md Rezaul Karim ◽  
Huei Ruey Ong ◽  
Hamidah Abdullah ◽  
Abu Yousuf ◽  
Chin Kui Cheng ◽  
...  

2021 ◽  
Vol 1035 ◽  
pp. 1043-1049
Author(s):  
Di Xiang ◽  
Chang Long Shao

A simple route has been developed for the synthesis of Ag2O/ZnO heterostructures and the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS) and photoluminescence (PL) spectroscopy analysis. Considering the porous structure of Ag2O/ZnO, the photocatalytic degradation for the organic dyes, such as eosin red (ER), methyl orange (MO), methylene blue (MB) and rhodamine B (RhB), under visible light irradiation was investigated in detail. Noticeably, Ag2O/ZnO just took 40 min to degrade 96 % MB. The rate of degradation using the Ag2O/ZnO heterostructures was 2.3 times faster than that of the bare porous ZnO nanospheres under visible light irradiation due to that the recombination of the photogenerated charge was inhibited greatly in the p-type Ag2O and n-type ZnO semiconductor. So the Ag2O/ZnO heterostuctures showed the potential application on environmental remediation.


2010 ◽  
Vol 53 (4) ◽  
pp. 843-851 ◽  
Author(s):  
Franciane Marquele-Oliveira ◽  
Danielle Cristine de Almeida Santana ◽  
Stephânia Fleury Taveira ◽  
Deise Mirella Vermeulen ◽  
Anderson Rodrigo Moraes de Oliveira ◽  
...  

ChemCatChem ◽  
2019 ◽  
Vol 11 (20) ◽  
pp. 5145-5153 ◽  
Author(s):  
Yujun Wu ◽  
Zhanli Han ◽  
Waqar Younas ◽  
Youqi Zhu ◽  
Xilan Ma ◽  
...  

2011 ◽  
Vol 1326 ◽  
Author(s):  
Jian Yuan ◽  
Chuanzhao Zhang ◽  
Caolong Li ◽  
Mingxia Chen ◽  
Wenfeng Shangguan

ABSTRACTTitanate nanotube (TNT) was prepared by alkaline hydrothermal method starting from TiO2 (P25), and then CdS-TNT was prepared for visible light harvesting by immersing TNT in Cd(CH3COO)2 and then (NH2)2CS aqueous solutions subsequently and heat treated at specialtemperature. After loading with Pt, photocatalytic reduction of gas phase CO2 with water vapor was carried out under UV-VIS and visible light irradiation. The results showed that the main reaction products were CH4, C2H4, C2H6 and H2, which were online characterized by gaschromatography when the flow rate of 5000 ppm CO2 is 0.35 ml/min. The hydrogenation process also realized under visible light illumination for Pt-CdS/TNT and producted 0.44 μmol/min CH4. The maximum yield of methane reached about 130 μmol/min when Pt-CdS/TNTwas irradiated with UV-Vis light. The time profile for production yield increased steadily with time up to about 6–7 h, then a decrease of the reaction rate occurred. It is suggested that thadsorption of intermediate products CO, O2 etc. on Pt and the oxidation of Pt might be the reasons for the photocatalytic reaction deterioration.


2015 ◽  
Vol 116 (2) ◽  
pp. 589-604 ◽  
Author(s):  
M. Rahim Uddin ◽  
Maksudur R. Khan ◽  
M. Wasikur Rahman ◽  
Abu Yousuf ◽  
Chin Kui Cheng

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