Towards full-spectrum (UV, visible, and near-infrared) photocatalysis: achieving an all-solid-state Z-scheme between Ag2O and TiO2 using reduced graphene oxide as the electron mediator

2017 ◽  
Vol 7 (18) ◽  
pp. 4193-4205 ◽  
Author(s):  
Xiaolin Hu ◽  
Xiang Liu ◽  
Jian Tian ◽  
Yujie Li ◽  
Hongzhi Cui

We prepare an all-solid-state Z-scheme photocatalyst (RGO–Ag2O/TiO2 composites) for photocatalytic degradation of tetracycline under UV, visible and NIR light irradiation.

Author(s):  
Jia Wang ◽  
Xiaochen Fang ◽  
Yue Liu ◽  
Su-Lei Fu ◽  
Ming-Peng Zhuo ◽  
...  

Full-spectrum photocatalytic from ultraviolet to near infrared has generated immense scientific interest in environmental purification and energy conversion, which is still a huge challenge. Herein, we utilized a solution combustion...


RSC Advances ◽  
2015 ◽  
Vol 5 (107) ◽  
pp. 88409-88413 ◽  
Author(s):  
Libang Kuai ◽  
Yong Zhou ◽  
Wengguang Tu ◽  
Ping Li ◽  
Haijin Li ◽  
...  

An all-solid-state Z-scheme was constructed for the photocatalytic reduction of CO2, consisting of CdS and TiO2 as photocatalysts, and reduced graphene oxide as a solid electron mediator.


Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 449 ◽  
Author(s):  
Hyun Jeong Bae ◽  
Tae Hee Yoo ◽  
Seungdu Kim ◽  
Wonhyeok Choi ◽  
Yo Seung Song ◽  
...  

Hybrid nanostructures made of gallium oxide (Ga2O3) and reduced graphene oxide (rGO) are synthesized using a facile hydrothermal process method, where the Ga2O3 nanostructures are well dispersed on the rGO surface. The formed Ga2O3-rGO hybrids are characterized via Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), a diffuse reflectance Ultraviolet-visible-near infrared (UV-Vis-NIR) spectrophotometer, Brunauer–Emmett–Teller (BET), and photoluminescence (PL). Gas chromatography mass spectrometry (GC-MS) was used for analyzing volatile organic compounds (VOCs). The photocatalytic activity of the hybrid nanostructures is evaluated via the degradation of the 2-butanone, representing the VOCs under 254-nm radiation in the atmosphere. That activity is then compared to that of the Ga2O3 and commercial TiO2-P25. The Ga2O3-rGO hybrid shows enhanced photocatalytic degradation of 2-butanone compared to Ga2O3 and TiO2-P25, which is attributed to the enhanced specific surface area. The results indicate that the Ga2O3-rGO hybrid could be a promising method of enhancing photocatalytic activity and thereby effectively degrading VOCs, including the 2-butanone.


2014 ◽  
Vol 4 (12) ◽  
pp. 4396-4405 ◽  
Author(s):  
Teo Peik-See ◽  
Alagarsamy Pandikumar ◽  
Lim Hong Ngee ◽  
Huang Nay Ming ◽  
Chia Chin Hua

Synthesis of magnetically separable rGO/Fe3O4nanocomposite materials for environmental remediationviathe photocatalytic degradation of methylene blue.


2017 ◽  
Vol 280 ◽  
pp. 108-113 ◽  
Author(s):  
A.W. Morawski ◽  
E. Kusiak-Nejman ◽  
A. Wanag ◽  
J. Kapica-Kozar ◽  
R.J. Wróbel ◽  
...  

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