Visible Light Activity and Photoelectrochemical Properties of Nitrogen-Doped TiO2

2004 ◽  
Vol 108 (50) ◽  
pp. 19384-19387 ◽  
Author(s):  
Shanmugasundaram Sakthivel ◽  
Marcin Janczarek ◽  
Horst Kisch
2008 ◽  
Vol 10 (3) ◽  
pp. 367-371 ◽  
Author(s):  
Xiaoli Cui ◽  
Ming Ma ◽  
Wei Zhang ◽  
Yanchao Yang ◽  
Zhuangjian Zhang

2016 ◽  
Vol 46 (1) ◽  
pp. 158-166 ◽  
Author(s):  
Le Dien Than ◽  
Ngo Sy Luong ◽  
Vu Dinh Ngo ◽  
Nguyen Manh Tien ◽  
Ta Ngoc Dung ◽  
...  

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2261 ◽  
Author(s):  
Abdul Wafi ◽  
Erzsébet Szabó-Bárdos ◽  
Ottó Horváth ◽  
Mihály Pósfai ◽  
Éva Makó ◽  
...  

Catalysts for visible-light-driven oxidative cleaning processes and antibacterial applications (also in the dark) were developed. In order to extend the photoactivity of titanium dioxide into the visible region, nitrogen-doped TiO2 catalysts with hollow and non-hollow structures were synthesized by co-precipitation (NT-A) and sol–gel (NT-U) methods, respectively. To increase their photocatalytic and antibacterial efficiencies, various amounts of silver were successfully loaded on the surfaces of these catalysts by using a facile photo-deposition technique. Their physical and chemical properties were evaluated by using scanning electron microscopy (SEM), transmission electron microscopy–energy dispersive X-ray spectroscopy (TEM–EDS), Brunauer–Emmett–Teller (BET) surface area, X-ray diffraction (XRD), and diffuse reflectance spectra (DRS). The photocatalytic performances of the synthesized catalysts were examined in coumarin and 1,4-hydroquinone solutions. The results showed that the hollow structure of NT-A played an important role in obtaining high specific surface area and appreciable photoactivity. In addition, Ag-loading on the surface of non-hollow structured NT-U could double the photocatalytic performance with an optimum Ag concentration of 10−6 mol g−1, while a slight but monotonous decrease was caused in this respect for the hollow surface of NTA upon increasing Ag concentration. Comparing the catalysts with different structures regarding the photocatalytic performance, silverized non-hollow NT-U proved competitive with the hollow NT-A catalyst without Ag-loading for efficient visible-light-driven photocatalytic oxidative degradations. The former one, due to the silver nanoparticles on the catalyst surface, displayed an appreciable antibacterial activity, which was comparable to that of a reference material practically applied for disinfection in polymer coatings.


2007 ◽  
Vol 253 (17) ◽  
pp. 7024-7028 ◽  
Author(s):  
Hong Shen ◽  
Lan Mi ◽  
Peng Xu ◽  
Weidian Shen ◽  
Pei-Nan Wang

2014 ◽  
Vol 34 (3) ◽  
pp. 809-816 ◽  
Author(s):  
Olim Ruzimuradov ◽  
Suvankul Nurmanov ◽  
Mirabbos Hojamberdiev ◽  
Ravi Mohan Prasad ◽  
Aleksander Gurlo ◽  
...  

2020 ◽  
Vol 7 (14) ◽  
pp. 2669-2675
Author(s):  
Shunhang Wei ◽  
Xiaoxiang Xu

Nitrogen doping red-shifted the absorption edge of LaZrTa3O11 markedly and induced visible-light activity for photocatalytic water-reduction and -oxidation reactions.


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