The Technology Horizon for Photocatalytic Water Treatment: Sunrise or Sunset?

Loeb, Stephanie; Alvarez, Pedro J. J.; Brame, Jonathon; Cates, Ezra L.; Choi, Wonyong; Crittenden, John C.; Dionysiou, Dionysios D.; Li, Qilin; Puma, Gianluca Li; Quan, Xie; Sedlak, David L.; Waite, T. David; Westerhoff, Paul; Kim, Jae Hong

doi:10.1021/acs.est.8b05041

Cited by 595 publications

(327 citation statements)

References 102 publications

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“…Nanoparticles like zero-valence based metal, semiconductor and some bimetallic type etc. are mostly used for treatment of environmental pollutants e.g., azo dyes, Chlorpyrifos [33][34][35], organochlorine pesticides, nitroaromatics, etc. [36].…”

Section: Nanophotocatalystsmentioning

confidence: 99%

“…It has been showed that the nanophotocatalysts can expand the oxidation ability due to effective production of oxidizing species at surface of material which helps in degradation of pollutants from the polluted water effectively [32].Nanoparticles like zero-valence based metal, semiconductor and some bimetallic type etc. are mostly used for treatment of environmental pollutants e.g., azo dyes, Chlorpyrifos [33][34][35], organochlorine pesticides, nitroaromatics, etc. [36].…”

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confidence: 99%

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Role of Nanomaterials in the Treatment of Wastewater: A Review

Yaqoob

Parveen

Umar

et al. 2020

Water

522

160

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Water is an essential part of life and its availability is important for all living creatures. On the other side, the world is suffering from a major problem of drinking water. There are several gases, microorganisms and other toxins (chemicals and heavy metals) added into water during rain, flowing water, etc. which is responsible for water pollution. This review article describes various applications of nanomaterial in removing different types of impurities from polluted water. There are various kinds of nanomaterials, which carried huge potential to treat polluted water (containing metal toxin substance, different organic and inorganic impurities) very effectively due to their unique properties like greater surface area, able to work at low concentration, etc. The nanostructured catalytic membranes, nanosorbents and nanophotocatalyst based approaches to remove pollutants from wastewater are eco-friendly and efficient, but they require more energy, more investment in order to purify the wastewater. There are many challenges and issues of wastewater treatment. Some precautions are also required to keep away from ecological and health issues. New modern equipment for wastewater treatment should be flexible, low cost and efficient for the commercialization purpose.

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Section: Nanophotocatalystsmentioning

confidence: 99%

mentioning

confidence: 99%

Role of Nanomaterials in the Treatment of Wastewater: A Review

Yaqoob

Parveen

Umar

et al. 2020

Water

522

160

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“…The field of photocatalysis is extremely active, with new materials and reactor systems constantly developed, however its practical implementation for environmental remediation is sparse. As highlighted by Loeb et al, 18 photocatalysis research is commonly framed in the context of application to water treatment, despite the materials being very rarely tested under the real-world conditions for which they are nominally intended. Thus, conducting field studies on photocatalytic materials which have shown promise under idealised laboratory conditions is a high priority in order to confirm the viable implementation of such a technique.…”

Section: Introductionmentioning

confidence: 99%

Field testing of low-cost titania-based photocatalysts for enhanced solar disinfection (SODIS) in rural India

Porley

Chatzisymeon

Meikap

et al. 2020

Environ. Sci.: Water Res. Technol.

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“…However, all these methods are tedius and produce secondary contaminants, which has to be further treated to avoid pollution. Hence, photocatalytic treatment of dye effluents is one of the most effective approach for the removal of organic contaminants in water [3][4][5][6]. In this path, metal oxide nanomaterials showed excellent photocatalytic activity for the removal of organic dyes due to their high physical, chemical properties, high surface area, high surface energy and quantum confinement effects compared to the counter bulk materials.…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis of nanoscale disc-like gadolinium doped magnesium zirconate for highly efficient photocatalytic degradation of rhodamine B in water

et al. 2020

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Highly ordered nanoscale disc-like cubic gadolinium doped magnesium zirconate (Gd:MgZrO 3) was synthesized by facile solvothermal route. The reaction time was found to be crucial in determining the final morphology of disc-like Gd:MgZrO 3. After studying the particles from time-dependent experiments, it is observed that, the formation of disc-like particles involved a complex process, in which rod-like or agglomerate particles were favorably formed after the initial thermal treatment. Owing to the chemical instability, they would turn into disc-like particles. After calcination, the generated product possessed good photocatalytic performance for the degradation of Rhodamine B (50 mg l −1) under UV light irradiation in contrast to morphologies of Gd:MgZrO 3 and other related state-of-the-art photocatalysts (e.g., TiO 2 , ZnO, WO 3 , BiVO 4 , Fe 2 O 3 , and g-C 3 N 4). The catalyst could be used for five cycles, maintaining its efficiency above 94.2%. These capacities made the disc-like Gd:MgZrO 3 a potential candidate for polluted water treatment. Also, the underlying photocatalysis mechanism of Gd:MgZrO 3 was proposed through radical trapping experiments.

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The Technology Horizon for Photocatalytic Water Treatment: Sunrise or Sunset?

Cited by 595 publications

References 102 publications

Role of Nanomaterials in the Treatment of Wastewater: A Review

Role of Nanomaterials in the Treatment of Wastewater: A Review

Field testing of low-cost titania-based photocatalysts for enhanced solar disinfection (SODIS) in rural India

Solvothermal synthesis of nanoscale disc-like gadolinium doped magnesium zirconate for highly efficient photocatalytic degradation of rhodamine B in water

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