Determination of photostability, biocompatibility and efficiency as photo-Fenton auxiliaries of three different types of soluble bio-based substances (SBO)

Gomis, J.; Gonçalves, Mayara Gabriela; Vercher, Rosa; Sabater, C.; Castillo, M.A.; Prevot, Alessandra Bianco; Amat, Ana M.; Arqués, A.

doi:10.1016/j.cattod.2014.10.015

Cited by 24 publications

(22 citation statements)

References 29 publications

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“…Regarding to the environmental problems associated to the addition of BBS to the effluent, previous results showed that the toxicity of these substances at the concentration employed in this paper (a few mg L -1 ) is negligible according to different bioassays (Gomis et al, 2015b). Hence, although it could be a concern if the final purpose is its use as drinking water, this should not be a problem when discharged in ecosystems, because of its biocompatibility and similar characteristics with humic substances that constitute the major fraction of natural organic matter.…”

Section: Bbssmentioning

confidence: 88%

Urban biowaste-derived sensitizing materials for caffeine photodegradation

Prevot

Baino

Fabbri

et al. 2016

Environ Sci Pollut Res

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Caffeine-photosensitized degradation has been studied in the presence of bio-based materials derived from urban biowaste after aerobic aging. A peculiar fraction (namely bio-based substances (BBSs)), soluble in all the pH range, has been used as photosensitizing agent. Several caffeine photodegradation tests have been performed, and positive results have been obtained in the presence of BBSs and HO, without and with additional Fe(II) (photo-Fenton-like process). Moreover, hybrid magnetite-BBS nanoparticles have been synthesized and characterized, in order to improve the sensitizer recovery and reuse after the caffeine degradation. In the presence of such nanoparticles and HO and Fe(II), the complete caffeine degradation has been attained in very short time. Both homogeneous and heterogeneous processes were run at pH = 5, milder condition compared to the classic photo-Fenton process.

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Section: Bbssmentioning

confidence: 88%

Urban biowaste-derived sensitizing materials for caffeine photodegradation

Prevot

Baino

Fabbri

et al. 2016

Environ Sci Pollut Res

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“…For each experiment, the reactor was loaded with 250 mL of ENR solution (initial concentration of 25 mg/L), also containing 5 mg/L of Fe(II) (using FeSO 4 •7H 2 O as the source of iron), prepared with the desired water matrix, MQ, TW or SW. Initial pH was adjusted to 2.8 or 5.0 by dropwise addition of H 2 SO 4 0.5 M and/or NaOH 1 M. For the (solar photo)-Fenton experiments, the stoichiometric amount of H 2 O 2 to mineralize ENR was added (125 mg/L); this is a useful procedure commonly employed to normalize the amount of hydrogen peroxide added to the reaction medium and to ensure that the process is not stopped because of the exhaustion of hydrogen peroxide (Bernabeu et al, 2011;Gomis et al, 2015). When necessary, irradiations were performed with a solar simulator (Oriel Instrument) equipped with a highpressure Xe short arc lamp (Ushio UXL-302-0).…”

Section: Reactionsmentioning

confidence: 99%

Monitoring photolysis and (solar photo)-Fenton of enrofloxacin by a methodology involving EEM-PARAFAC and bioassays: Role of pH and water matrix

Sciscenko

Garcia-Ballesteros

Sabater

et al. 2020

Science of The Total Environment

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“…SBO are relatively stable towards chemical oxidation and no significant loss of efficiency can was observed along photo-Fenton. Different bioassays have demonstrated that those compounds are non-toxic and scarcely biodegradable [53]. Finally experiments have been driven with real sunlight at pH = 5.2.…”

Section: Compoundmentioning

confidence: 99%

Strategies to Drive Photo-Fenton Process at Mild Conditions for the Removal of Xenobiotics from Aqueous Systems

Santos‐Juanes¹,

Amat

Arqués

2017

COC

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The aim of this paper is to provide an overview on the different approaches that can be employed to drive a photo-Fenton process under mild conditions, using both heterogeneous and homogeneous iron sources. For this purpose, sections are devoted to the following strategies: a) addition of iron at low concentrations; b) using the matrix of the effluent in order to avoid deactivation of iron; c) addition of chemical auxiliaries to form photoactive complexes with iron, such as carboxylates, chelating agents and humic-like macromolecules; d) strategies leading to the application of heterogeneous photo-Fenton process, by using iron-based solid particles or by hosting iron on different supports and; e) using heterogeneous iron sources as a reservoir for constant dosing of homogeneous iron photocatalyst. In particular, the review will focus on the elimination of emerging pollutants (e.g. drugs, personal care products or pesticides at low concentrations) which are the effluents where applying neutral photo-Fenton seems especially meaningful, although relevant works with other families of pollutants are also considered.

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Determination of photostability, biocompatibility and efficiency as photo-Fenton auxiliaries of three different types of soluble bio-based substances (SBO)

Cited by 24 publications

References 29 publications

Urban biowaste-derived sensitizing materials for caffeine photodegradation

Urban biowaste-derived sensitizing materials for caffeine photodegradation

Monitoring photolysis and (solar photo)-Fenton of enrofloxacin by a methodology involving EEM-PARAFAC and bioassays: Role of pH and water matrix

Strategies to Drive Photo-Fenton Process at Mild Conditions for the Removal of Xenobiotics from Aqueous Systems

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