One step solvothermal synthesis of ultra-fine N-doped TiO2 with enhanced visible light catalytic properties

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 60522-60529 ◽  
Author(s):  
S. M. Y. Mohamed Mukthar Ali ◽  
Sandhya K. Y.
Keyword(s):  
Visible Light ◽  
Surface Area ◽  
Solvothermal Synthesis ◽  
Catalytic Properties ◽  
Light Response ◽  
Doped Tio2 ◽  
Nitrogen Doped ◽  
Visible Light Response ◽  
One Step ◽  
The One

Herein, we report the one-step solvothermal synthesis of nitrogen doped TiO2 using N-methyl-2-pyrollidone as solvent cum dopant. The method leads to higher surface area, highly crystalline anatase TiO2 with improved visible light response.

Preparation and photocatalytic performance of silver-modified and nitrogen-doped TiO2 nanomaterials with oxygen vacancies

2021 ◽  
Author(s):  
Hong Zhang ◽  
Yingyu Jiang ◽  
Baiqin Zhou ◽  
Zhuo Wei ◽  
Zhenya Zhu ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrothermal Method ◽  
Oxygen Vacancies ◽  
Photocatalytic Performance ◽  
Light Response ◽  
Doped Tio2 ◽  
Nitrogen Doped ◽  
Visible Light Response ◽  
Tio2 Nanomaterials ◽  
Modified Hydrothermal Method

A modified hydrothermal method for the synthesis of TiO2 material to achieve a more efficient visible light response.

scholarly journals Efficient Dye Contaminant Elimination and Simultaneously Electricity Production via a Bi-Doped TiO2 Photocatalytic Fuel Cell

Nanomaterials ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 210
Author(s):  
Dong Liu ◽  
Chunling Li ◽  
Congyue Zhao ◽  
Er Nie ◽  
Jianqiao Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Visible Light ◽  
Sol Gel ◽  
Oxygen Demand ◽  
Light Response ◽  
Electricity Production ◽  
Doped Tio2 ◽  
Screen Printing Technique ◽  
One Step ◽  
Photocatalytic Fuel Cell

TiO2 develops a higher efficiency when doping Bi into it by increasing the visible light absorption and inhibiting the recombination of photogenerated charges. Herein, a highly efficient Bi doped TiO2 photoanode was fabricated via a one-step modified sol-gel method and a screen-printing technique for the anode of photocatalytic fuel cell (PFC). A maximum degradation rate of 91.2% of Rhodamine B (RhB) and of 89% after being repeated 5 times with only 2% lost reflected an enhanced PFC performance and demonstrated an excellent stability under visible-light irradiation. The excellent degradation performance was attributed to the enhanced visible-light response and decreased electron-hole recombination rate. Meanwhile, an excellent linear correlation was observed between the efficient photocurrent of PFC and the chemical oxygen demand of solution when RhB is sufficient.

Ni-Bi co-doped TiO2 as highly visible light response nano-photocatalyst for CO2 photo-reduction in a batch photo-reactor

2020 ◽  
Vol 41 ◽  
pp. 101289
Author(s):  
Reza Nematollahi ◽  
Cyrus Ghotbi ◽  
Farhad Khorasheh ◽  
Afsanehsadat Larimi
Keyword(s):  
Visible Light ◽  
Light Response ◽  
Doped Tio2 ◽  
Visible Light Response ◽  
Co Doped

scholarly journals The Photocatalytic and Antibacterial Performance of Nitrogen-Doped TiO2: Surface-Structure Dependence and Silver-Deposition Effect

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2261 ◽  
Author(s):  
Abdul Wafi ◽  
Erzsébet Szabó-Bárdos ◽  
Ottó Horváth ◽  
Mihály Pósfai ◽  
Éva Makó ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Visible Light ◽  
Surface Area ◽  
Photocatalytic Performance ◽  
Visible Region ◽  
Bet Surface Area ◽  
Doped Tio2 ◽  
X Ray ◽  
Nitrogen Doped ◽  
Visible Light Driven

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.

A facile approach to synthesize N and B co-doped TiO2 nanomaterials with superior visible-light response

2010 ◽  
Vol 64 (15) ◽  
pp. 1728-1731 ◽  
Author(s):  
Guosheng Wu ◽  
Jiali Wen ◽  
Jingpeng Wang ◽  
Dan F. Thomas ◽  
Aicheng Chen
Keyword(s):  
Visible Light ◽  
Light Response ◽  
Doped Tio2 ◽  
Visible Light Response ◽  
Tio2 Nanomaterials ◽  
Co Doped
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