Solar reclamation of wastewater effluent polluted with bisphenols, phthalates and parabens by photocatalytic treatment with TiO2/Na2S2O8 at pilot plant scale

Vela, Nuria; Calín, May; Yáñez‐Gascón, María J.; Garrido, Isabel; Pérez-Lucas, Gabriel; Fenoll, José; Navarro, Simón

doi:10.1016/j.chemosphere.2018.08.069

Cited by 54 publications

(35 citation statements)

References 47 publications

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“…All of the research and studies into the distribution and toxicity reminds us to pay more attention to the removal and degradation of these typical, widely used PAEs. Biodegradation (Ahuactzin-Perez et al, 2018), physical adsorption (Shaida et al, 2018), and chemical oxidation (Vela et al, 2018) have all been adopted to investigate the treatment of PAEs in the aquatic environment. Chemical oxidation is paid more attention due to the fast reaction and complete decomposition, especially the advanced oxidation process (AOPs).…”

Section: Introductionmentioning

confidence: 99%

Photodegradation Pathways of Typical Phthalic Acid Esters Under UV, UV/TiO2, and UV-Vis/Bi2WO6 Systems

Wang

Zeng

et al. 2019

Front. Chem.

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Photolysis and photocatalysis of typical phthalic acid esters (dimethyl phthalate, DMP; diethyl phthalate, DEP; dibutyl phthalate, DBP) were carried out in UV, UV/TiO 2 , and UV-Vis/Bi 2 WO 6 systems. All of the selected phthalic acid esters and their decomposition byproducts were subjected to qualitative and quantitative analysis through HPLC and GC-MS. The results of 300 min of photolysis and photodegradation reaction were that each system demonstrated different abilities to remove DMP, DEP, and DBP. The UV/TiO 2 system showed the strongest degradation ability on selected PAEs, with removal efficiencies of up to 93.03, 92.64, and 92.50% for DMP, DEP, and DBP in 90 min, respectively. UV-Vis/Bi 2 WO 6 had almost no ability to remove DMP and DEP. However, all of the systems had strong ability to degrade DBP. On the other hand, the different systems resulted in various byproducts and PAE degradation pathways. The UV system mainly attacked the carbon branch and produced o-hydroxybenzoates. No ring-opening byproducts were detected in the UV system. In the photocatalytic process, the hydroxyl radicals produced not only attacked the carbon branch but also the benzene ring. Therefore, hydroxylated compounds and ring-opening byproducts were detected by GC-MS in both the UV/TiO 2 and UV-Vis/Bi 2 WO 6 photocatalytic systems. However, there were fewer products due to direct hole oxidation in the UV-Vis/Bi 2 WO 6 system compared with the UV/TiO 2 system, which mainly reacted with the pollutants via hydroxyl radicals.

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Section: Introductionmentioning

confidence: 99%

Photodegradation Pathways of Typical Phthalic Acid Esters Under UV, UV/TiO2, and UV-Vis/Bi2WO6 Systems

Wang

Zeng

et al. 2019

Front. Chem.

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“…Among a great variety of metal oxide semiconductors, nanostructured titanium dioxide (TiO 2 ) is considered as a promising candidate for different applications due to its unique properties. TiO 2 is the most popular and well‐studied material for photocatalytic removal of hazardous organics such as dyes, pharmaceuticals, and pesticides from water. It is known that the photocatalytic activity of TiO 2 depends on its physical characteristics including crystal structure, degree of crystallinity, surface area, particle size and shape, surface hydroxyl content, etc.…”

Section: Introductionmentioning

confidence: 74%

Electrochemical Synthesis of TiO₂ under Pulse Alternating Current: Effect of Thermal Treatment on the Photocatalytic Activity

et al. 2019

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The current work aimed to study the effect of thermal treatment on the structural, optical, and photocatalytic properties of TiO2 nanoparticles synthesized by a novel large‐scale electrochemical method using pulse alternating current (PAC). The obtained titania was characterized via XRD, TEM, XPS, UV‐Vis DRS, PL, Raman and FTIR spectroscopy. The as‐prepared TiO2 was found to be poorly crystallized and partly amorphous. Following thermal annealing, the anatase structure is developed at temperatures of 400–600 °C. The photoreactivity of the TiO2 nanoparticles was evaluated for the degradation of methylene blue (MB) and rhodamin B (RhB) dyes under UVA irradiation. As shown, the adsorption properties and photocatalytic activity of the as‐prepared TiO2 strongly depend on the chemical nature of the dye. The enhanced photocatalytic performance for the MB and RhB degradation was observed for the sample annealed at 400 °C, which coincides with a balance between the degree of crystallinity, specific surface area, optical properties and efficiency of electron‐hole pair separation.

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“…While dye models are particularly prone to inconsistencies, molecules of other classes are not immune from giving misleading results, and as such testing against as wide and diverse a set of pollutants as possible is key. Good examples in the literature address this by focusing upon a subset of organic pollutants such as drug molecules, 79 explosives 80 or agricultural chemicals 81 and study the degradation of numerous examples. In doing so, these studies provide a baseline of activity against the molecule classes tested, which gives a much more thorough and reliable proof of activity.…”

Section: Catalysis Science and Technologymentioning

confidence: 99%

Bridging the gap between laboratory and application in photocatalytic water purification

Odling

Robertson

2019

Catal. Sci. Technol.

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Solar reclamation of wastewater effluent polluted with bisphenols, phthalates and parabens by photocatalytic treatment with TiO2/Na2S2O8 at pilot plant scale

Cited by 54 publications

References 47 publications

Photodegradation Pathways of Typical Phthalic Acid Esters Under UV, UV/TiO2, and UV-Vis/Bi2WO6 Systems

Photodegradation Pathways of Typical Phthalic Acid Esters Under UV, UV/TiO2, and UV-Vis/Bi2WO6 Systems

Electrochemical Synthesis of TiO₂ under Pulse Alternating Current: Effect of Thermal Treatment on the Photocatalytic Activity

Bridging the gap between laboratory and application in photocatalytic water purification

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Solar reclamation of wastewater effluent polluted with bisphenols, phthalates and parabens by photocatalytic treatment with TiO2/Na2S2O8 at pilot plant scale

Cited by 54 publications

References 47 publications

Photodegradation Pathways of Typical Phthalic Acid Esters Under UV, UV/TiO2, and UV-Vis/Bi2WO6 Systems

Photodegradation Pathways of Typical Phthalic Acid Esters Under UV, UV/TiO2, and UV-Vis/Bi2WO6 Systems

Electrochemical Synthesis of TiO2 under Pulse Alternating Current: Effect of Thermal Treatment on the Photocatalytic Activity

Bridging the gap between laboratory and application in photocatalytic water purification

Contact Info

Product

Resources

About

Electrochemical Synthesis of TiO₂ under Pulse Alternating Current: Effect of Thermal Treatment on the Photocatalytic Activity