Microwave Assisted Synthesis of Nanostructured Titanium Dioxide with High Photocatalytic Activity

2010 ◽  
Vol 49 (20) ◽  
pp. 9636-9643 ◽  
Author(s):  
Anirudha Jena ◽  
R. Vinu ◽  
S. A. Shivashankar ◽  
Giridhar Madras
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Microwave Assisted Synthesis ◽  
Nanostructured Titanium ◽  
Microwave Assisted

Photocatalytic Activity of Mixed Phase TiO2 from Microwave-Assisted Synthesis

2013 ◽  
Vol 664 ◽  
pp. 661-666 ◽  
Author(s):  
Nuchanaporn Pijarn ◽  
Sirithan Jeimsirilers ◽  
Supatra Jinawath
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Organic Compounds ◽  
Irradiation Time ◽  
Synthesis Method ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Bacteria And Fungi ◽  
Hydrolysis Of

Photocatalyst is an environmental clean-up material when exposed to light. It can decompose organic compounds, bacteria and fungi as well as foul odors. Titanium dioxide (TiO2) has long been well known for its powerful photocatalytic activity. However, its properties depend on several factors and synthesis method is one of them. In this work, TiO2powders were prepared by three methods, namely microwave-assisted hydrolysis of titanium oxysulfate (TiOSO4), hydrolysis of TiOSO4, and also by calcining of TiOSO4. Photocatalytic activity of the obtained TiO2powders were evaluated through the decomposition of methylene blue in comparison with P25 (Degussa). Results showed that the TiO2prepared at conditions of microwave 100 watts, irradiation time of 10 min was most effective when compared with the others in this work.

Bio-templated synthesis of hierarchically ordered macro-mesoporous anatase titanium dioxide flakes with high photocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15572-15578 ◽  
Author(s):  
Bing Li ◽  
Jianquan Zhao ◽  
Jing Liu ◽  
Xinyu Shen ◽  
Shaobo Mo ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Templated Synthesis ◽  
Rose Petals

Hierarchically ordered macro-mesoporous anatase TiO2 flakes were synthesized by using rose petals and P123 as dual templates with high photocatalytic activity.

scholarly journals A facile microwave-assisted synthesis of ZnO nanoparticles and their photocatalytic activity: Effect of pH

2021 ◽  
Vol 18 (2) ◽  
pp. 3-8
Author(s):  
Aura S. Merlano ◽  
Ángel Salazar
Keyword(s):  
Photocatalytic Activity ◽  
Zno Nanoparticles ◽  
Microwave Assisted Synthesis ◽  
Nano Zno ◽  
Effect Of Ph ◽  
Microwave Assisted ◽  
Activity Effect ◽  
Uv Visible

Este estudio reporta una síntesis fácil, libre de surfactantes y asistida por microondas para la producción de nanopartículas de óxido de zinc (ZnO). Se investigó el efecto del valor del pH sobre las propiedades químicas, ópticas, morfológicas y fotocatalíticas de las nanopartículas de ZnO. Las nanopartículas se caracterizaron mediante microscopía electrónica de barrido (SEM), espectroscopía infrarroja por transformada de Fourier (FTIR), espectroscopía de rayos X por dispersión de energía (EDS) y espectroscopía UV-visible (UV-Vis). El análisis SEM muestra que el tamaño de las partículas disminuye con el aumento del valor de pH. Los espectros UV-Vis muestran picos de absorción excitónica alrededor de 334-359 nm. Se encontró que la brecha de energía de las muestras disminuye con el aumento del valor de pH. Finalmente, se evaluó la eficiencia fotocatalítica de los nanomateriales de ZnO mediante la degradación de naranja de metileno (MO) bajo irradiación de luz UV-A y se logró una eficiencia de degradación del colorante del 93.04% para la muestra de ZnO con pH-13. Los resultados experimentales confirman que la ruta propuesta para producir ZnO es fácil, reproducible y amigable con el medio ambiente. Además, el nano ZnO tiene un gran potencial como fotocatalizador para eliminar compuestos orgánicos.

Microwave-assisted synthesis of BiOBr/graphene nanocomposites and their enhanced photocatalytic activity

2012 ◽  
Vol 41 (34) ◽  
pp. 10472 ◽  
Author(s):  
Shuyan Song ◽  
Wei Gao ◽  
Xiao Wang ◽  
Xiyan Li ◽  
Dapeng Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Microwave Assisted Synthesis ◽  
Graphene Nanocomposites ◽  
Microwave Assisted

Facile one-pot microwave-assisted synthesis of tungsten-doped BiVO4/WO3 heterojunctions with enhanced photocatalytic activity

2020 ◽  
Vol 125 ◽  
pp. 110783 ◽  
Author(s):  
Caroline H. Claudino ◽  
Maria Kuznetsova ◽  
Bárbara S. Rodrigues ◽  
Changqiang Chen ◽  
Zhiyu Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted
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