Comparative study on photocatalytic degradation of methomyl and parathion over UV-irradiated TiO2 particles in aqueous solutions

Juang, Ruey‐Shin; Chen, Chin-Hone

doi:10.1016/j.jtice.2013.09.025

Cited by 37 publications

(12 citation statements)

References 35 publications

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“…The results yielded straight lines as shown in Fig. 7 confirmed the pseudo first-order kinetic reaction [13,24,39] in IC dye of the photodegradation process with the rate constants were 1.1725 h −1 , 0.4367 h −1 and 0.1823 h −1 for the TNR_5 wt%, TNR_10 wt% and TNR_15 wt% sheets, respectively. Moreover, the efficiency of this 3D porousstructured TNR_5 wt% hybrid sheet was also compared with sheets of the same type previously reported from our group [30][31][32].…”

Section: Photocatalytic Activities Of Tnr Hybrid Sheetssupporting

confidence: 70%

High photocatalytic performance of 3D porous-structured TiO2@natural rubber hybrid sheet on the removal of indigo carmine dye in water

2019

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Due to the high efficiency of photocatalytic process for the environmental treatments, titanium dioxide (TiO 2 ) is a popular used as photocatalyst material. However, the practical uses of TiO 2 in powder form have some drawbacks as well as the difficult reusability. In this work, 3D porous-structured TiO 2 @natural rubber (TNR) hybrid sheets with high photocatalytic performance were presented. TNR hybrid sheets prepared by a facile and low-cost method, which is based on the mixing of natural rubber (NR) latex (60% high ammonia) and ammoniacal TiO 2 (P25) suspension, followed by vacuum filtration through a sintered glass template to make a 3D porous network structure on the surface of the sheets. The obtained TNR sheet samples were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDX), X-ray diffractometer (XRD) and reflection Fourier transformed infrared spectroscopy (FT-IR) techniques. The results showed that the surface morphologies of TNR hybrid sheets appeared as porous-structured which had high roughness and with various tiny pores on the surface. The photocatalytic properties of the prepared TNR hybrid sheets were tested using indigo carmine (IC) dye under UV light irradiation. It was found that the highest photodegradation efficiency was achieved with the TNR_5 wt% hybrid sheet sample. Compared with the sheets reported in previous works, the TNR sheet shows higher efficiencies than those sheets due to its higher amount of TiO 2 particles at the surface, more porous structure with high rough surface, and abundance of tiny pores on the TNR sheet surface. Moreover, the recyclability and stability of TNR sheet indicated that upon using 10 cycles (remains 98% efficiency), in which the stability of the sheet surface well-confirmed by SEM and XRD techniques, as well. From above the study, this 3D porous-structured TNR hybrid sheet could be a new alternative strategy for the water or wastewater treatment in industry concerning with the easy use, recovery, reusability and stability of the photocatalysts.

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Section: Photocatalytic Activities Of Tnr Hybrid Sheetssupporting

confidence: 70%

High photocatalytic performance of 3D porous-structured TiO2@natural rubber hybrid sheet on the removal of indigo carmine dye in water

2019

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“…, which corresponds to the previously reported (Juang and Chen, 2014). Consequently, the amount of TiO 2 powder of 1.0 g.L -1 was used for further studies.…”

Section: Effect Of the Amount Of Multiphase Tio 2 Powdersupporting

confidence: 69%

The photocatalytic degradation of phenol over titanium dioxide powder prepared by the solvothermal method

Jansanthea

Treenattip

Pookmanee

et al. 2016

IJEE

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Titanium dioxide (TiO 2 ) powder was prepared by the solvothermal method. Titanium isopropoxide (C 12 H 28 O 4 Ti), ammonium hydroxide (NH 4 OH) and nitric acid (HNO 3 ) were used as the starting materials. The mixed solution was diluted to 0.25 M with ethanol (C 2 H 5 OH) and heated at 100°C-150°C for 3-5 h in a Teflon-lined stainless steel autoclave vessel. TiO 2 powder was characterised with X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). The photocatalytic degradation of phenol over TiO 2 powder under UV light irradiation was studied. The influence of the amount of TiO 2 powder and irradiation time was investigated. The concentration of phenol was measured using UV-VisThe photocatalytic degradation of phenol over titanium dioxide powder 45 spectrometry (UV-Vis). The optimum condition was obtained at 1.0 g.L -1 for the amount of TiO 2 powder and irradiation time was 120 min. It was found that TiO 2 powder prepared by the solvothermal method at 100°C for 3 h has the best performance photocatalytic for degradation of phenol.

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“…Otros autores (Juang & Chen, 2014;Tomašević et al, 2010) también observaron una cinética de seudoprimer orden para la degradación del metomilo en disoluciones acuosas por fotocatálisis con TiO 2 bajo irradiación UV con variación delas concentraciones de partida del plaguicida y de TiO 2 en suspensión. En la Tabla 2 se indican algunos resultados comparativos reportados en la literatura.…”

Section: Resultados Y Discusiónunclassified

Metomyl photo-degradation kinetics through advanced oxidation technologies

2020

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La fotodegradación de contaminantes mediante procesos de oxidación avanzada (POA) constituye un campo de investigación moderno en la química y la fisicoquímica ambiental. En este trabajo se presentan los progresos alcanzados en el área, ejemplificados mediante el desarrollo de un fotorreactor de diseño sencillo que aprovecha la luz solar para la degradación de insecticidas de uso frecuente en Paraguay, de potenciales aplicaciones en regiones rurales o aisladas. Como ejemplo de aplicación se seleccionó el insecticida metomilo, de amplio uso en la agricultura de Paraguay.

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Comparative study on photocatalytic degradation of methomyl and parathion over UV-irradiated TiO2 particles in aqueous solutions

Cited by 37 publications

References 35 publications

High photocatalytic performance of 3D porous-structured TiO2@natural rubber hybrid sheet on the removal of indigo carmine dye in water

High photocatalytic performance of 3D porous-structured TiO2@natural rubber hybrid sheet on the removal of indigo carmine dye in water

The photocatalytic degradation of phenol over titanium dioxide powder prepared by the solvothermal method

Metomyl photo-degradation kinetics through advanced oxidation technologies

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