Photocatalytical removal of bentazon using commercial and sol–gel synthesized nanocrystalline TiO2: Operational parameters optimization and toxicity studies

Seck, E.I.; Doña-Rodrı́guez, J.M.; Fernández-Rodríguez, C.; Díaz, O. González; Araña, J.; Pérez‐Peña, J.

doi:10.1016/j.cej.2012.06.119

Cited by 24 publications

(3 citation statements)

References 35 publications

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“…Wang and Ku observed that phenol was a major intermediate that was generated during the early stages of benzene decomposition [16]. Researchers have developed a variety of methods to prepare TiO 2 photocatalysts, such as the solvothermal method [17][18][19][20], the precipitation method [21], the sol-gel method [22][23][24], and the thermal decomposition of alkoxides [25]. The properties of the TiO 2 , such as its crystal phase, crystallinity, surface area, porosity, and morphology, vary when synthesised using different methods.…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis of mesoporous TiO2: The effect of morphology, size and calcination progress on photocatalytic activity in the degradation of gaseous benzene

et al. 2014

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis of mesoporous TiO2: The effect of morphology, size and calcination progress on photocatalytic activity in the degradation of gaseous benzene

et al. 2014

Chemical Engineering Journal

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“…Bentazone has a relatively high water solubility and therefore a potential for displacing in soil and contaminating groundwater . In humans, it causes vomiting, diarrhea, dyspnea, tremors, and weakness, or generates eye irritation . According to the World Health Organization (WHO) report, the health‑based value, which is protective of health effects from lifetime exposure to Bentazone, is 0.5 ppm .…”

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confidence: 99%

Amyloid Fibrils Aerogel for Sustainable Removal of Organic Contaminants from Water

et al. 2020

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Water contamination by organic pollutants is ubiquitous and hence a global concern due to detrimental effects on the environment and human health. Here, it is demonstrated that amyloid fibrils aerogels are ideal adsorbers for removing organic pollutants from water. To this end, amyloid fibrils prepared from β‑lactoglobulin, the major constituent of milk whey protein, are used as building blocks for the fabrication of the aerogels. The adsorption of Bentazone, Bisphenol A, and Ibuprofen, as model pollutants, is evaluated under quasi‐static conditions, without use of energy or pressure. Through adsorption by amyloid fibrils aerogel, excellent removal efficiencies of 92%, 78%, and 98% are demonstrated for Bentazone, Bisphenol A, and Ibuprofen, respectively. Furthermore, the maximum adsorption capacity of amyloid fibrils aerogel for Bentazone, Bisphenol A, and Ibuprofen is 54.2, 50.6, and 69.6 mg g−1, respectively. To shed light on the adsorption equilibrium process, adsorption isotherms, binding constants, saturation limits, and the effect of pH are evaluated. Finally, the regeneration of the aerogel over three consecutive cycles is studied, exhibiting high reusability with no significant changes in its removal performance. These results point at amyloid fibrils aerogels as a sustainable, efficient, and inexpensive technology for alleviating the ubiquitous water contamination by organic pollutants.

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“…The use of salts on the degradation of toxic substances may cause the acceleration or delay of radicals production originating from the degradation process. Among the salts used are: sulphate [10], persulphate [11,12], periodate [13], phosphate [14].Aside from oxidants which is the case of H 2 O 2 [15,16].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Photocatalytic Efficiency of TiO<sub>2</sub> in the Presence of Sulphate

Pinto

Sá

Santos

et al. 2018

MSF

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The use of salts on the degradation of toxic substances may cause the acceleration or delay of radicals production originating from the degradation process. This work had as its objective to investigate the presence and absence of potassium sulphate salt on the photocatalysis of Bentazone using TiO2 as a catalyzer. The effect of the sulphate ion on the photodegradation of the Bentazone herbicide was studied using concentrations of 0,05; 0,10 and 0,20 g L-1 with 0,5 g L-1 of TiO2, in suspension of 180 mL from bentazone solution (3,0x10-5 mol L-1). The samples were analyzed through UV-Vis spectroscopy. The presence of sulphate ions presented a difference of 3,3% on the degradation of bentazone in comparison to TiO2 alone.

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Photocatalytical removal of bentazon using commercial and sol–gel synthesized nanocrystalline TiO2: Operational parameters optimization and toxicity studies

Cited by 24 publications

References 35 publications

Solvothermal synthesis of mesoporous TiO2: The effect of morphology, size and calcination progress on photocatalytic activity in the degradation of gaseous benzene

Solvothermal synthesis of mesoporous TiO2: The effect of morphology, size and calcination progress on photocatalytic activity in the degradation of gaseous benzene

Amyloid Fibrils Aerogel for Sustainable Removal of Organic Contaminants from Water

Assessment of the Photocatalytic Efficiency of TiO<sub>2</sub> in the Presence of Sulphate

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