Two‐step pyrolysis preparation of Co‐doped porous g‐C 3 N 4 with Co‐N coordination bond for dye efficient degradation driven by visible light

2021 ◽  
Author(s):  
Jinsong Li ◽  
Xuzhuo Sun ◽  
Bo Li ◽  
Yahui Shi ◽  
Yongde Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
Coordination Bond ◽  
Co Doped

A New Route for the Synthesis of Visible-Light Driven Ag,V Co-Doped TiO2 for Degradation of Organic Pollutant

2020 ◽  
Vol 94 (13) ◽  
pp. 2715-2722
Author(s):  
M. K. Ntobeng ◽  
R. Akbarzadeh
Keyword(s):  
Visible Light ◽  
Organic Pollutant ◽  
Doped Tio2 ◽  
Visible Light Driven ◽  
Co Doped

scholarly journals Green Synthesis of N/Zr Co-Doped TiO2 for Photocatalytic Degradation of p-Nitrophenol in Wastewater

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 235
Author(s):  
Hayette Benkhennouche-Bouchene ◽  
Julien G. Mahy ◽  
Cédric Wolfs ◽  
Bénédicte Vertruyen ◽  
Dirk Poelman ◽  
...  
Keyword(s):  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Sol Gel ◽  
Visible Region ◽  
Chemical Properties ◽  
Pure Tio2 ◽  
Molar Ratio ◽  
Xps Spectra ◽  
Doped Tio2 ◽  
Co Doped

TiO2 prepared by a green aqueous sol–gel peptization process is co-doped with nitrogen and zirconium to improve and extend its photoactivity to the visible region. Two nitrogen precursors are used: urea and triethylamine; zirconium (IV) tert-butoxide is added as a source of zirconia. The N/Ti molar ratio is fixed regardless of the chosen nitrogen precursor while the quantity of zirconia is set to 0.7, 1.4, 2, or 2.8 mol%. The performance and physico-chemical properties of these materials are compared with the commercial Evonik P25 photocatalyst. For all doped and co-doped samples, TiO2 nanoparticles of 4 to 8 nm of size are formed of anatase-brookite phases, with a specific surface area between 125 and 280 m2 g−1 vs. 50 m2 g−1 for the commercial P25 photocatalyst. X-ray photoelectron (XPS) measurements show that nitrogen is incorporated into the TiO2 materials through Ti-O-N bonds allowing light absorption in the visible region. The XPS spectra of the Zr-(co)doped powders show the presence of TiO2-ZrO2 mixed oxide materials. Under visible light, the best co-doped sample gives a degradation of p-nitrophenol (PNP) equal to 70% instead of 25% with pure TiO2 and 10% with P25 under the same conditions. Similarly, the photocatalytic activity improved under UV/visible reaching 95% with the best sample compared to 50% with pure TiO2. This study suggests that N/Zr co-doped TiO2 nanoparticles can be produced in a safe and energy-efficient way while being markedly more active than state-of-the-art photocatalytic materials under visible light.

Synthesis, characterization and application of bismuth and boron Co-doped TiO2: A visible light active photocatalyst

2013 ◽  
Vol 217 ◽  
pp. 108-118 ◽  
Author(s):  
Segomotso Bagwasi ◽  
Baozhu Tian ◽  
Jinlong Zhang ◽  
Muhammad Nasir
Keyword(s):  
Visible Light ◽  
Doped Tio2 ◽  
Visible Light Active ◽  
Co Doped

Immobilization of visible light-sensitive (N, Cu) co-doped TiO 2 onto rectorite for photocatalytic degradation of p- chlorophenol in aqueous solution

2017 ◽  
Vol 142 ◽  
pp. 128-135 ◽  
Author(s):  
Zhujian Huang ◽  
Pingxiao Wu ◽  
Beini Gong ◽  
Xing Zhang ◽  
Zicong Liao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Co Doped

Nb/Se Co-doped BiOI Nanomaterials with Exposed (110) Facets for Enhanced Visible-Light-Driven Photocatalytic Activity

2021 ◽  
Author(s):  
Yifeng Xu ◽  
Aihua Yan ◽  
Xiaohui Zhang ◽  
Fei Huang ◽  
Dengke Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Efficient Strategy ◽  
Visible Light Driven ◽  
Co Doped

Herein, an efficient strategy is demonstrated to prepare a visible-light-driven Nb/Se co-doped BiOI photocatalyst with exposed (110) facets. The results show that the photocatalytic activity works in a stable and...

Self-floating Cu/N co-doped TiO2 /diatomite granule composite with enhanced visible-light-responsive photoactivity and reusability

2018 ◽  
Vol 94 (4) ◽  
pp. 1210-1219 ◽  
Author(s):  
Yan Chen ◽  
Qiong Wu ◽  
Jun Wang ◽  
Youtao Song
Keyword(s):  
Visible Light ◽  
Doped Tio2 ◽  
Co Doped
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