Efficient visible light-induced degradation of phenol on N-doped anatase TiO2 with large surface area and high crystallinity

2010 ◽  
Vol 256 (12) ◽  
pp. 3740-3745 ◽  
Author(s):  
Guohui Tian ◽  
Yajie Chen ◽  
Kai Pan ◽  
Dejun Wang ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Visible Light ◽  
Surface Area ◽  
Anatase Tio2 ◽  
Large Surface Area ◽  
High Crystallinity

scholarly journals Synthesis, Characterization and Photocatalytic Performance of Poly-3-Thenoic Acid/Cu-TiO2 Nanohybrid for Efficient Visible Light Assisted Degradation of Bismarck Brown R

2022 ◽  
Vol 19 (1) ◽  
pp. 1715
Author(s):  
Imandi Manga Raju ◽  
Tirukkovalluri Siva Rao ◽  
Miditana Sankara Rao
Keyword(s):  
Electron Microscopy ◽  
Visible Light ◽  
Surface Area ◽  
Visible Light Irradiation ◽  
Sol Gel ◽  
Anatase Tio2 ◽  
X Ray ◽  
Ft Ir ◽  
Nanohybrid Material

The present work reported on the synthesis and characterization of Poly-3-Thenoic acid/Cu-TiO2 nanohybrid (PCuT) for the photocatalytic degradation of organic azo dye pollutant from wastewater. The as-synthesized nanohybrid by an in-situ modified sol-gel method including chemical oxidative polymerization was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, UV-visible diffuse reflectance spectroscopy (UV-vis.DRS), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX), transmission electron microscopy (TEM) and Brunauer-Emmet-Teller (BET) surface area analysis. The characterization results revealed the formation of small aggregates of polymer contained high crystalline anatase TiO2 nanoparticles (XRD) with narrowed bandgap energy (UV-vis.DRS), decreased particle size (TEM) with smooth surface morphology (SEM) and large surface area (BET). All the constituent elements of the polymer and Cu-TiO2 were found in the PCuT nanohybrid material (EDX) and their chemical interaction studied by FT-IR confirmed the stability of the nanohybrid. The photocatalytic activity of the nanohybrid was tested by the degradation of Bismarck Brown R dye under visible light irradiation. To enhance the photocatalytic efficiency, effects of various catalyst/dye reaction parameters such as polymer content, solution pH, catalyst dosage, and initial dye concentration were studied and optimized. HIGHLIGHTS Poly-3-Thenoic acid/Cu-TiO2 nanohybrid material was successfully synthesized by in situ modified sol-gel process Poly-3-Thenoic acid has enhanced the visible light absorption capacity of anatase TiO2 in nanohybrids Electron-hole recombination in TiO2 was effectively inhibited by Cu doping Bismark Brown R, an organic pollutant was successfully degraded in 75 min of visible light irradiation GRAPHICAL ABSTRACT

Polycondensation of guanidine hydrochloride into a graphitic carbon nitride semiconductor with a large surface area as a visible light photocatalyst

2014 ◽  
Vol 4 (9) ◽  
pp. 3235-3243 ◽  
Author(s):  
Lei Shi ◽  
Lin Liang ◽  
Fangxiao Wang ◽  
Jun Ma ◽  
Jianmin Sun
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Recombination Rate ◽  
Carbon Nitride ◽  
Guanidine Hydrochloride ◽  
Large Surface Area ◽  
Graphitic Carbon Nitride ◽  
Visible Light Photocatalyst ◽  
Nitride Semiconductor

g-C3N4 prepared from guanidine hydrochloride exhibited a large surface area and a reduced recombination rate of electrons and holes, leading to improved photocatalytic activity for degrading RhB under visible light.

A supramolecular strategy based on molecular dipole moments for high-quality covalent organic frameworks

2016 ◽  
Vol 52 (51) ◽  
pp. 7986-7989 ◽  
Author(s):  
Laura M. Salonen ◽  
Dana D. Medina ◽  
Enrique Carbó-Argibay ◽  
Maarten G. Goesten ◽  
Luís Mafra ◽  
...  
Keyword(s):  
Surface Area ◽  
Intermolecular Interactions ◽  
Dipole Moments ◽  
Building Blocks ◽  
Large Surface Area ◽  
Covalent Organic Frameworks ◽  
High Quality ◽  
Molecular Dipole ◽  
High Crystallinity ◽  
Strong Dipole

Attractive intermolecular interactions of building blocks with strong dipole moments result in a COF with high crystallinity and large surface area.

Synthesis of Large Surface-Area g-C3 N4 Comodified with MnO x and Au-TiO2 as Efficient Visible-Light Photocatalysts for Fuel Production

2017 ◽  
Vol 8 (3) ◽  
pp. 1701580 ◽  
Author(s):  
Fazal Raziq ◽  
Liqun Sun ◽  
Yuying Wang ◽  
Xuliang Zhang ◽  
Muhammad Humayun ◽  
...  
Keyword(s):  
Visible Light ◽  
Surface Area ◽  
Large Surface Area ◽  
Fuel Production

Synthesis of tapered tetragonal nanorods of anatase TiO2 with enhanced photocatalytic activity via a sol–hydrothermal process mediated by H2O2 and NH3

2015 ◽  
Vol 3 (29) ◽  
pp. 15265-15273 ◽  
Author(s):  
Linlin Zhang ◽  
Long Tian ◽  
Yongxin Liu ◽  
Taixing Tan ◽  
Dan Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Band Structure ◽  
Surface Area ◽  
Electronic Band Structure ◽  
Hydrothermal Process ◽  
Anatase Tio2 ◽  
Large Surface Area ◽  
Electronic Band ◽  
Photocatalytic Activities ◽  
Unique Surface

Enhanced photocatalytic activities of tapered tetragonal nanorods of anatase TiO2 mediated by H2O2 and NH3 were ascribed to their large surface area, unique surface heterojunction and superior electronic band structure.

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