Photocatalytic degradation of diuron in aqueous solution by platinized TiO2

Katsumata, Hideyuki; Sada, M. H.; Nakaoka, Yusuke; Kaneco, Satoshi; Suzuki, Tohru; Ohta, Kouji

doi:10.1016/j.jhazmat.2009.06.110

Cited by 78 publications

(35 citation statements)

References 49 publications

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“…A crystal size for the rutile phase of approximately 35 nm had previously been reported for P25 that had been impregnated with Pt [21], Ag [22], La, Ce, Y, Pr and Sm [19], and increasing the concentrations of these metals stabilized the crystal sizes for both phases. In this study, the crystal size for the rutile phase was possibly higher due to oxygen vacancies and to rearrangement caused by the thermal treatment used to remove impurities from P25.…”

Section: Results and Discussion Characterizationsupporting

confidence: 59%

Use of Multivariable Analysis (ANOVA) to Compare Irradiation Sources on Diuron Destruction by Photocatalysis Using TiO2-P25 Impregnated with Sm3+, Eu3+ and Gd3+

Pérez¹,

Torres²,

Uribe³

et al. 2018

J Chem Eng Process Technol

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Ions of Sm 3+ , Eu 3+ and Gd 3+ were deposited onto the surface of TiO 2 -P25 using an impregnation method, and the catalysts were calcined to 500°C in order to provide thermal stability to the crystalline phases. A sample of pure P25 was processed under the same synthesis conditions. The materials were characterized by physisorption of N 2 , X-ray diffraction and Scanning Electron Microscope and Spectroscopy UV-Vis with diffuse reflectance. It was observed by SEM that P25 had an amorphous surface forming irregular aggregates and deformations in which the studied lanthanide ions were inserted. Due to heat treatment, the P25 suffered modifications that showed a higher photocatalytic activity in the visible region, by the presence of oxygen vacancies generated by the removal of impurities (C and Cl). XRD analyses determined the distribution and crystal size of the crystalline phases presented in the P25 (anatase and rutile). Lanthanide ions possibly demonstrated an effect of superficial coalescing in the rutile phase of the P25. A completely randomized experimental design was used to determine the catalytic evaluation, and sunlight was statistically shown to be the best condition for the degradation and mineralization of diuron. Comparing treatments indicated a better option: using the catalyst with 0.3 wt% Gd under sunlight.

show abstract

Section: Results and Discussion Characterizationsupporting

confidence: 59%

Use of Multivariable Analysis (ANOVA) to Compare Irradiation Sources on Diuron Destruction by Photocatalysis Using TiO2-P25 Impregnated with Sm3+, Eu3+ and Gd3+

Pérez¹,

Torres²,

Uribe³

et al. 2018

J Chem Eng Process Technol

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show abstract

“…λ N 340 nm and λmax = 365 nm (Madani et al, 2006), and with a solar simulator (Bamba et al, 2007), P25 was more active than a PC500 TiO2 photocatalyst. Platinization of TiO2 increased the degradation rate of diuron under both UV and visible light illumination (Katsumata et al, 2009). An anatase TiO2 photocatalyst synthesized by thermal decomposi-tion of a titanium alkoxide precursor showed superior diuron removal than a reference catalyst (JRC-TIO-1) under UV or solar irradiation (Klongdee et al, 2005).…”

Section: Heterogeneous Photocatalysismentioning

confidence: 99%

An overview on the advanced oxidation processes applied for the treatment of water pollutants defined in the recently launched Directive 2013/39/EU

Ribeiro

Nunes

Pereira

et al. 2015

Environment International

806

319

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Environmental pollution is a recognized issue of major concern since a wide range of contaminants has been found in aquatic environment at ng L −1 to μg L −1 levels.In the year 2000, a strategy was defined to identify the priority substances concerning aquatic ecosystems, followed by the definition of environmental quality standards (EQS) in 2008. Recently it was launched the Directive 2013/39/EU that updates the water framework policy highlighting the need to develop new water treatment technologies to deal with such problem. This review summarizes the data published in the last decade regarding the application of advanced oxidation processes (AOPs) to treat priority compounds and certain other pollutants defined in this Directive, excluding the inorganic species (cadmium, lead, mercury, nickel and their derivatives).The Directive 2013/39/EU includes several pesticides

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“…Vinclozoline Hustert and Moza, 1997. Dieldrin Ormad et al, 2010Parathion Zoh et al, 2005Chen et al, 1996;Chiron et al,1997;Herrmann, 1999;Sakkas et al, 2002Pendimetalin Mansour, 1997Moza et al, 1992Diquat Florencio et al, 2004Kinkennon et al, 1995. Paration-metil Sakellarides et al, 2004;Zoh et al, 2005Zoh et al, ,2006 Evgenidou et al, 2007b;Ormad et al, 2010Dimethoate Oller et al, 2006Domínguez et al, 1998;Evgenidou et al, 2006;Ormad et al, 2010PCDD Barbeni et al, 1986Pelizzetti, 1985Diuron Canle et al, 2005Kinkennon et al,1995;Muneer et al, 1998;Farre et al, 2005;Katsumata et al, 2009;Macounova et al, 2003;Ormad et al, 2010PCDF Barbeni et al, 1986Pelizzetti, 1985. Table 3.…”

Section: Heterogeneous Photocatalysis (Hp)mentioning

confidence: 99%

Advanced Oxidation Processes (AOPs) for Removal of Pesticides from Aqueous Media

Quiróz¹,

Bandala²,

Martínez‐Huitle³

2011

Pesticides - Formulations, Effects, Fate

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Photocatalytic degradation of diuron in aqueous solution by platinized TiO2

Cited by 78 publications

References 49 publications

Use of Multivariable Analysis (ANOVA) to Compare Irradiation Sources on Diuron Destruction by Photocatalysis Using TiO2-P25 Impregnated with Sm3+, Eu3+ and Gd3+

Use of Multivariable Analysis (ANOVA) to Compare Irradiation Sources on Diuron Destruction by Photocatalysis Using TiO2-P25 Impregnated with Sm3+, Eu3+ and Gd3+

An overview on the advanced oxidation processes applied for the treatment of water pollutants defined in the recently launched Directive 2013/39/EU

Advanced Oxidation Processes (AOPs) for Removal of Pesticides from Aqueous Media

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