Photodegradation of pharmaceuticals and personal care products in water treatment using carbonaceous-TiO2 composites: A critical review of recent literature

Awfa, Dion; Ateia, Mohamed; Fujii, Manabu; Johnson, Matthew S.; Yoshimura, Chihiro

doi:10.1016/j.watres.2018.05.036

Cited by 346 publications

(132 citation statements)

References 236 publications

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“…Due to the popularity of such material in research, literature presenting carbon-based adsorbents and/or photocatalysts for the removal of pharmaceuticals have been published in recent years. [39][40][41][42] In this review, we compile additional recent studies on graphenebased adsorbents and a wide range of photocatalysts without limiting the material presented to TiO 2 -based photocatalysts. In addition, we present recent advancements on modifications that have been made on adsorbents and photocatalysts to increase their applicability in water treatment.…”

Section: Introductionmentioning

confidence: 99%

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

et al. 2020

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Increasing human activity, including commercial and noncommercial use of pharmaceuticals, personal care products, and agricultural products, has introduced new contaminants that can be challenging to remove with currently available technologies. Pharmaceuticals, in particular, can be especially challenging to remove from the water supply and can pose great harm to people and local ecosystems. Their highly stable nature makes their degradation with conventional water treatment techniques difficult, and studies have shown that even advanced treatment of water is unable to remove some compounds. As such, decontamination of water from pharmaceuticals requires the development of advanced technologies capable of being used in indirect and direct potable water reuse. In this review, we discuss pharmaceutical removal in indirect potable water treatment and how recent advancements in adsorption and photocatalysis technologies can be used for the decontamination of pharmaceutical-based emerging contaminants. For instance, new materials that incorporate graphene-based nanomaterials have been developed and shown to have increased adsorptive capabilities toward pharmaceuticals when compared with unmodified graphene. In addition, adsorbents have been incorporated in membrane technologies, and photocatalysts have been combined with magnetic material and coated on optical fibers improving their usability in water treatment. Advancements in photocatalytic material research have enabled the development of highly effective materials capable of degradation of a variety of pharmaceutical compounds and the development of visible-light photocatalysts. To understand how adsorbents and photocatalysts can be utilized in water treatment, we address the benefits and limitations associated with these technologies and their potential applicability in indirect potable water reuse plants.

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Section: Introductionmentioning

confidence: 99%

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

et al. 2020

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“…TiO 2 -based photocatalysts have also been used for the photodegradation of antibiotics in aqueous media. [32] For example, Pouliose tal. found that commercial TiO 2 P25 was able to photocatalytically degrade chloramphenicol under UV-light irradiation (in 90 min).…”

Section: Oxidative Degradationsmentioning

confidence: 99%

“…[35] In all cases, it has been suggestedt hat the degradation pro-cesses are initiated by ROS speciesf ormed by ET between the excited photocatalyst surfacea nd water. [32]…”

Section: Oxidative Degradationsmentioning

confidence: 99%

TiO₂‐Based Photocatalysis at the Interface with Biology and Biomedicine

Tomás‐Gamasa

Mascareñas

2019

ChemBioChem

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The conversion of sunlight into chemical energy by using photosynthetic machinery is at the heart of nature and life. Scientists have also learned to use light energy to promote a great variety of chemical reactions, most of which are based on redox processes involving electron‐transfer steps. Indeed, the area of photoredox catalysis has recently emerged as one of the hottest fields in synthetic chemistry. Many of the photoredox reactions discovered so far take place in homogeneous phases, and rely on the use of soluble photoresponsive catalysts. However, in recent years, there have been many advances in the area of heterogeneous photocatalysis, most of which are based on the use of semiconductor materials, such as TiO2, as a key photocatalytic system. These technologies have found different applications, especially in the field of sustainable chemistry and therapy. Herein, some of these applications, and the potential of TiO2‐based photocatalysts in biology and biomedicine, are reviewed.

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“…Advanced oxidation processes (AOPs) have been shown effective technologies to destroy recalcitrant contaminants in the aqueous phase. And, due to its advantages of high efficiency, good photochemical stability, nontoxicity, and low cost, TiO 2 photocatalysis has been proved to be one of the most promising environmentalfriendly technologies for the decomposition of environmental pollutants, and it has been widely studied in water treatment and air pollution control [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Synergistic Removal of Bromate and Ibuprofen by Graphene Oxide and TiO₂ Heterostructure Doped with F: Performance and Mechanism

Zhang

Liu

2020

Journal of Nanomaterials

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The batch experiments of photocatalytic oxidation-reduction of bromate and ibuprofen (IBP) by graphene oxide (GO) and TiO2 heterostructure doped with F (FGT) particles were conducted. The performance and mechanism of synergistic removal of bromate and IBP by FGT were discussed. The results show that a demonstrable synergistic effect and excellent removal rate of bromate and IBP by FGT were exhibited. When pH is 5.2 and the dosage of FGT is 0.1 g/L, the reaction rate constants of bromate and IBP increased from 0.0584 min-1 and 0.4188 min-1 to 0.1353 min-1 and 0.4504 min-1, respectively, compared with the degradation of bromate or IBP alone. The reaction of photocatalytic synergistic degradation is appropriately fitted through Langmuir-Hinshelwood first-order kinetics. The mechanism of synergistic removal of bromate and IBP by FGT was discussed. And electrons (e-), hydroxyl radical (⋅OH), and superoxide radical (⋅O2-) are the main active species. The electrons play a main role in the bromate reduction, and bromine is the only reduction product, while the oxidation of IBP is the result of ⋅OH and ⋅O2-, and ⋅OH plays a key role. The recombination of electrons and holes is inhibited by simultaneous consumption of bromate and IBP, which makes full use of the redox properties of FGT and plays a synergistic role in the removal of pollutants. The results indicate that photocatalytic oxidation-reduction by FGT is a promising, efficient, and environmental-friendly method for synchronous removal of combined pollution in water.

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Photodegradation of pharmaceuticals and personal care products in water treatment using carbonaceous-TiO2 composites: A critical review of recent literature

Cited by 346 publications

References 236 publications

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

TiO₂‐Based Photocatalysis at the Interface with Biology and Biomedicine

Synergistic Removal of Bromate and Ibuprofen by Graphene Oxide and TiO₂ Heterostructure Doped with F: Performance and Mechanism

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Photodegradation of pharmaceuticals and personal care products in water treatment using carbonaceous-TiO2 composites: A critical review of recent literature

Cited by 346 publications

References 236 publications

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

Nano-based adsorbent and photocatalyst use for pharmaceutical contaminant removal during indirect potable water reuse

TiO2‐Based Photocatalysis at the Interface with Biology and Biomedicine

Synergistic Removal of Bromate and Ibuprofen by Graphene Oxide and TiO2 Heterostructure Doped with F: Performance and Mechanism

Contact Info

Product

Resources

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TiO₂‐Based Photocatalysis at the Interface with Biology and Biomedicine

Synergistic Removal of Bromate and Ibuprofen by Graphene Oxide and TiO₂ Heterostructure Doped with F: Performance and Mechanism