Degradation aspects of endocrine disrupting chemicals: A review on photocatalytic processes and photocatalysts

Wang, Ruikai; Ma, Xiuqiang; Liu, Tong; Li, Yuchao; Song, Liang; Tjong, Sie Chin; Cao, Lixin; Wang, Wei; Yu, Qing; Wang, Zhongwei

doi:10.1016/j.apcata.2020.117547

Cited by 63 publications

(18 citation statements)

References 132 publications

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“…Several semiconductors have been used as photocatalysts and among them, TiO 2 -P 25 seems to be the most photoactive with a bandgap of 3.2 eV under UV irradiation [ 65 , 66 ].…”

Section: Degradation Of Benzophenone-type Uv Filters Based On Advance...mentioning

confidence: 99%

Stability and Removal of Benzophenone-Type UV Filters from Water Matrices by Advanced Oxidation Processes

et al. 2022

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Benzophenone (BP) type UV filters are common environmental contaminants that are posing a growing health concern due to their increasing presence in water. Different studies have evidenced the presence of benzophenones (BP, BP-1, BP-2, BP-3, BP-4, BP-9, HPB) in several environmental matrices, indicating that conventional technologies of water treatment are not able to remove them. It has also been reported that these compounds could be associated with endocrine-disrupting activities, genotoxicity, and reproductive toxicity. This review focuses on the degradation kinetics and mechanisms of benzophenone-type UV filters and their degradation products (DPs) under UV and solar irradiation and in UV-based advanced oxidation processes (AOPs) such as UV/H2O2, UV/persulfate, and the Fenton process. The effects of various operating parameters, such as UV irradiation including initial concentrations of H2O2, persulfate, and Fe2+, on the degradation of tested benzophenones from aqueous matrices, and conditions that allow higher degradation rates to be achieved are presented. Application of nanoparticles such as TiO2, PbO/TiO2, and Sb2O3/TiO2 for the photocatalytic degradation of benzophenone-type UV filters was included in this review.

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“…Several semiconductors have been used as photocatalysts and among them, TiO 2 -P 25 seems to be the most photoactive with a bandgap of 3.2 eV under UV irradiation [ 65 , 66 ].…”

Section: Degradation Of Benzophenone-type Uv Filters Based On Advance...mentioning

confidence: 99%

Stability and Removal of Benzophenone-Type UV Filters from Water Matrices by Advanced Oxidation Processes

et al. 2022

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“…Photocatalysis is a low-cost and versatile green technology widely used for the degradation of organic pollutants such as EDCs [33][34][35][36]. Photocatalytic processes need a semiconductor acting as photocatalyst that absorbs light radiation in a specific wavelength range, thus resulting in the excitation of electron (e − ) from the valence band (VB) to the conduction band (CB).…”

Section: Photocatalytic Processesmentioning

confidence: 99%

“…Notwithstanding the advancement of both fundamental understanding of photoinduced mechanisms and functional performances of a variety of photocatalysts, there are still important challenges to face, the main being the ineffective use of the solar radiation spectrum and the fast e − /h + recombination, whereby the electrons excited to CB recombine with the separated h + in the VB rapidly prior to creation of free radicals. In this view, many flexible strategies can be adopted: the use of specific semiconductors with a low VB-CB band gap energy (E g ), the heterojunction of semiconductors with different E g , the doping with metal or non-metal elements, the modification with organic molecules or carbon materials as photosensitizers or co-dopants, the engineering of structural defects, such as ion vacancies [35,[37][38][39][40].…”

Section: Photocatalytic Processesmentioning

confidence: 99%

Recent Advances in Endocrine Disrupting Compounds Degradation through Metal Oxide-Based Nanomaterials

et al. 2022

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Endocrine Disrupting Compounds (EDCs) comprise a class of natural or synthetic molecules and groups of substances which are considered as emerging contaminants due to their toxicity and danger for the ecosystems, including human health. Nowadays, the presence of EDCs in water and wastewater has become a global problem, which is challenging the scientific community to address the development and application of effective strategies for their removal from the environment. Particularly, catalytic and photocatalytic degradation processes employing nanostructured materials based on metal oxides, mainly acting through the generation of reactive oxygen species, are widely explored to eradicate EDCs from water. In this review, we report the recent advances described by the major publications in recent years and focused on the degradation processes of several classes of EDCs, such as plastic components and additives, agricultural chemicals, pharmaceuticals, and personal care products, which were realized by using novel metal oxide-based nanomaterials. A variety of doped, hybrid, composite and heterostructured semiconductors were reported, whose performances are influenced by their chemical, structural as well as morphological features. Along with photocatalysis, alternative heterogeneous advanced oxidation processes are in development, and their combination may be a promising way toward industrial scale application.

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“…The performance and degradation rate of a photocatalytic process hinges on several working conditions that determine the elimination of EDCs in water. These include light intensity, wavelength, presence of organic and inorganic compounds, reaction temperature, catalyst loading, concentration and chemical structure of the contaminants, initial concentration of the substrate, solution pH, and dissolved oxygen [ 19 , 84 ]. Few studies have explored photocatalytic and enzymatic degradation processes to eliminate EDCs from different water sources ( Table 3 ).…”

Section: Contemporary Techniques For the Removal Of Edcs From Various Water Sourcesmentioning

confidence: 99%

Contemporary Techniques for Remediating Endocrine-Disrupting Compounds in Various Water Sources: Advances in Treatment Methods and Their Limitations

et al. 2021

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Over the years, the persistent occurrence of superfluous endocrine-disrupting compounds (EDCs) (sub µg L−1) in water has led to serious health disorders in human and aquatic lives, as well as undermined the water quality. At present, there are no generally accepted regulatory discharge limits for the EDCs to avert their possible negative impacts. Moreover, the conventional treatment processes have reportedly failed to remove the persistent EDC pollutants, and this has led researchers to develop alternative treatment methods. Comprehensive information on the recent advances in the existing novel treatment processes and their peculiar limitations is still lacking. In this regard, the various treatment methods for the removal of EDCs are critically studied and reported in this paper. Initially, the occurrences of the EDCs and their attributed effects on humans, aquatic life, and wildlife are systematically reviewed, as well as the applied treatments. The most noticeable advances in the treatment methods include adsorption, catalytic degradation, ozonation, membrane separation, and advanced oxidation processes (AOP), as well as hybrid processes. The recent advances in the treatment technologies available for the elimination of EDCs from various water resources alongside with their associated drawbacks are discussed critically. Besides, the application of hybrid adsorption–membrane treatment using several novel nano-precursors is carefully reviewed. The operating factors influencing the EDCs’ remediations via adsorption is also briefly examined. Interestingly, research findings have indicated that some of the contemporary techniques could achieve more than 99% EDCs removal.

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Degradation aspects of endocrine disrupting chemicals: A review on photocatalytic processes and photocatalysts

Cited by 63 publications

References 132 publications

Stability and Removal of Benzophenone-Type UV Filters from Water Matrices by Advanced Oxidation Processes

Stability and Removal of Benzophenone-Type UV Filters from Water Matrices by Advanced Oxidation Processes

Recent Advances in Endocrine Disrupting Compounds Degradation through Metal Oxide-Based Nanomaterials

Contemporary Techniques for Remediating Endocrine-Disrupting Compounds in Various Water Sources: Advances in Treatment Methods and Their Limitations

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