Ratchaneekorn Wanchanthuek

Mahasarakham University

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Widchaya Radchatawedchakoon

Mahasarakham University

Senee Kruanetr

Mahasarakham University

Apanee Luengnaruemitchai

Chulalongkorn University

Uthai Sakee

Mahasarakham University

Rotcharin Sawisai

Mahasarakham University

Thapol Araya

Mahasarakham University

S-

Suminya - Teeta

Mahasarakham University

Sahil Chawla

University of British Columbia

Somchai Sonsupap

King Mongkut's Institute of Technology Ladkrabang

Narong Chanlek

Synchrotron Light Research Institute

Cooperative Institutions

Mahasarakham University

Chulalongkorn University

Suranaree University of Technology

Synchrotron Light Research Institute

National Nanotechnology Center

Khon Kaen University

King Mongkut's Institute of Technology Ladkrabang

University of British Columbia

University of Toronto

Vancouver General Hospital

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Studies on preparation and characterization of Fe/TiO₂ catalyst in photocatalysis applications

Materials Research Express (2017)

Senee Kruanetr Ratchaneekorn Wanchanthuek

A Fe/TiO2 photocatalyst was synthesized and used as the catalyst in paraquat degradation as a test reaction to examine the photo-properties. The TEM, XRD, FTIR, UV–vis diffuse reflectance spectrometer, XPS and BET surface area analysis methods were used as the characterization techniques to investigate the physical and chemical properties of the prepared catalyst. Moreover, some of the preparation parameters, such as the preparation method, the content of Fe loading, thermal treatment and source of light irradiation, were also examined. According to the characterization and the expressed catalytic activity, it was found that the factor that significantly responded to the catalyst activity was the –OH surface species on the catalyst surface. Moreover, the lower band gap energy of the Fe/TiO2 catalyst was also an important parameter that gave high catalytic properties because of the higher light adsorption. The preparation scheme and the photodegradation mechanism were proposed.

Photodegradation

Characterization

Diffuse reflection

Degradation

Specific surface area

10.1088/2053-1591/aa75f2

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Citations (11)

The effect of experimental condition and kinetic study over TiO2 in photodegradation of methylene blue

Chemical Research in Chinese Universities (2013)

Widchaya Radchatawedchakoon Thapol Araya Ratchaneekorn Wanchanthuek

Photodegradation

Methylene blue

Methylene

Source

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Citations (0)

The catalytic performance of Au/La-CeO catalyst for PROX reaction in H2 rich stream

International Journal of Hydrogen Energy (2014)

Apanee Luengnaruemitchai Sahil Chawla Ratchaneekorn Wanchanthuek

PROX

Thermal Stability

10.1016/j.ijhydene.2014.08.048

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Citations (18)

Effects of experimental conditions and kinetics of photodegradation of methylene blue over TiO2

Chemical Research in Chinese Universities (2013)

Widchaya Radchatawedchakoon Thapol Araya Ratchaneekorn Wanchanthuek

Methylene blue

Photodegradation

Exothermic reaction

Degradation

10.1007/s40242-013-3177-5

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Citations (5)

Photocatalytic studies using a very low surface area catalyst: TiO 2 over CaCO 3 from waste shell ( Pomacea canaliculata ) in paraquat degradation

Indian Journal of Chemistry -Section A (IJCA) (2020)

Ratchaneekorn Wanchanthuek

Calcination of shell waste and subsequent processing resulted in CaCO 3 powder that was used as the catalyst support for TiO 2 /CaCO 3 catalyst. The catalyst has been characterized by scanning electron microscopy, BET measurements, X-ray diffraction, UV-visible diffused reflectance spectroscopy and Fourior transform infrared spectroscopy to elucidate the catalyst’s properties. The TiO 2 over CaCO 3 catalyst has been used as a photocatalyst in paraquat removal under optimized conditions of calcination temperature, TiO 2 loading method, loading content of Ti component, loading content of TiO 2 in the catalyst and light irradiation. The results show that all the experimental parameters significantly affect paraquat removal efficiency of the catalyst. The calcination temperature and TiO 2 loading method show the most significant effect.

Degradation

BET theory

Source

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Photocatalytic studies using a very low surface area catalyst: TiO 2 over CaCO 3 from waste shell ( Pomacea canaliculata ) in paraquat degradation

Senee Kruanetr Ratchaneekorn Wanchanthuek

Pomacea canaliculata

Degradation

Source

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Enhancing the photocatalytic degradation of Fe-Ti over SiO₂ nanocomposite material for paraquat removal

Materials Research Express (2018)

Senee Kruanetr Ratchaneekorn Wanchanthuek

Degradation

10.1088/2053-1591/aabe69

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Citations (6)

Activity of Au/Fe2O3–TiO2 catalyst for preferential CO oxidation

International Journal of Hydrogen Energy (2015)

Apanee Luengnaruemitchai Kunanya Srihamat Chinchanop Pojanavaraphan Ratchaneekorn Wanchanthuek

PROX

10.1016/j.ijhydene.2015.07.148

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Citations (35)

Simple continuous flow synthesis of linoleic and palmitic acid-coated magnetite nanoparticles

Surfaces and Interfaces (2019)

Rotcharin Sawisai Ratchaneekorn Wanchanthuek Widchaya Radchatawedchakoon Uthai Sakee

Thermogravimetric analysis

10.1016/j.surfin.2019.100344

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Citations (18)

Catalytic activity of bimetallic Zn/TiO₂ catalyst for degradation of herbicide paraquat: synthesis and characterization

Materials Research Express (2017)

Uthai Sakee Ratchaneekorn Wanchanthuek

The preparation and characterization of Zn/TiO2 catalysts were performed and the photocatalytic properties of the resulting catalysts were tested using the paraquat degradation reaction under UV and solar light irradiation. The effect of the preparation method, amount of Zn loading, the calcination temperature and the thermal annealing during the autoclave aging were studied as well as the light irradiation during the testing reaction. The initial concentration of paraquat was 400 ppm, the pH during the catalytic testing was seven and the reaction temperature was 30 °C. The characterization information were obtained from XRD, XPS, UV–vis diffuse reflectance, FTIR, TEM and BET techniques. They were used to explain the expressed catalytic activity of Zn/TiO2. The results showed that the Zn/TiO2 catalyst from the hydrothermal method could remove about 80% of the paraquat from the solution (using 4 g l−1 of catalyst). The characterization data showed that the surface area, porous structure and dispersion of Zn species could affect the ability of the paraquat removal rather than the crystallnity of the TiO2 in the catalyst. The XPS spectra suggested that the preparation method, between the sol gel and hydrothermal, could not affect the state of the Zn and Ti, which presented in the Zn2+ and Ti4+ forms. This primary result will lead us to further study to elucidate the main active site by the XPS technique. Moreover, it clearly showed that the lowering of the band gap energy in the Zn/TiO2 was achieved (compared to bare TiO2), and this phenomena was one of the factors that gave the higher photocatalytic activity of the Zn/TiO2 catalyst.

Bimetallic strip

10.1088/2053-1591/aa8e59

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Citations (13)