The removal of methylene blue as a remedy of dye-based marine pollution: a photocatalytic perspective

Kavil, Yasar N.; Shaban, Yasser A.; Alelyani, Saeed Saad; Al-Farawati, Radwan; Orif, Mohammad I.; Ghandourah, Mohammed A.; Schmidt, Mark; Turki, Adnan J.; Zobidi, Mousa

doi:10.1007/s11164-019-03988-w

Cited by 24 publications

(12 citation statements)

References 59 publications

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“…Hence, fewer OH radicals are generated as active sites. Furthermore, when the MB concentration is high, there are more MB and intermediate product molecules on the surface of the catalyst, which reduces the degradation efficiency [14] . Therefore, the MB concentration of 5 mg.L −1 was chosen as the optimum MB concentration.…”

Section: Results and Discussionmentioning

confidence: 99%

“…The reactive oxygen species (ROS) degrade MB (Equations (8) and 9): [14,70]

true MB +^{•} normalO_{2}^{-}_{(ads)} \to Degradation of MB (into harmless species such as CO_{2} and normalH_{2} normalO)

true MB +^{•} OH_{(ads)} \to Degradation of MB (into harmless species such as CO_{2} and normalH_{2} normalO)

…”

Section: Results and Discussionmentioning

confidence: 99%

“…Various industries make use of dyes (methylene blue, congo red, Eriochrome Black T, etc.) in the production process [14] . Among these dyes, methylene blue (MB) is highly carcinogenic and hazardous to human health and the environment [15] .…”

Section: Introductionmentioning

confidence: 99%

“…Among these dyes, methylene blue (MB) is highly carcinogenic and hazardous to human health and the environment [15] . Studies have shown that this cationic dye can be degraded by titania and converted to harmless substances [14] …”

Section: Introductionmentioning

confidence: 99%

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Comparative Study of Synthesis Parameters of Nanoporous Titania Particles to Improve Structural Properties and Photocatalytic Activity

Hassankhani-Majd

Anbia

2021

ChemistrySelect

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Nanoporous materials have been widely used in many fields. However, their synthesis with uniform particle shapes, pore sizes, pore volumes, and surface areas remains a considerable challenge. Thus, choosing a suitable controllable method for synthesizing nanoporous materials is crucial to obtain appropriate properties. Herein, nanoporous titania particles (NPTPs) were prepared via the hydrothermal method. This study investigated how the synthesis parameters such as the type of chelating agent, the hydrolysis method, and the drying technique affected the properties of NPTPs. The NPTPs were characterized by XRD, FESEM, TEM, and BET. The results demonstrated that when acetylacetone (ACAC, as the chelating agent), the spray‐hydrolysis (SH) method, and the freeze‐drying (FD) technique were used, NPTPs achieved a more uniform particle shape, a smaller particle size, a larger pore size, a larger pore volume, and a higher surface area. Ultimately, the photocatalytic degradation (PCD) of methylene blue (MB) was examined using improved NPTPs.

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Section: Results and Discussionmentioning

confidence: 99%

“…The reactive oxygen species (ROS) degrade MB (Equations (8) and 9): [14,70]

true MB +^{•} normalO_{2}^{-}_{(ads)} \to Degradation of MB (into harmless species such as CO_{2} and normalH_{2} normalO)

true MB +^{•} OH_{(ads)} \to Degradation of MB (into harmless species such as CO_{2} and normalH_{2} normalO)

…”

Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparative Study of Synthesis Parameters of Nanoporous Titania Particles to Improve Structural Properties and Photocatalytic Activity

Hassankhani-Majd

Anbia

2021

ChemistrySelect

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Section: The Effect Of the Concentration Of Mbmentioning

confidence: 99%

Comparative Study of Synthesis Parameters of Nanoporous Titania Particles to Improve Structural Properties and Photocatalytic Activity

Hassankhani-Majd

Anbia

2021

Preprint

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Nanoporous materials have been widely used in many fields. However, their synthesis with uniform particle shapes, pore sizes, pore volumes, and surface areas remains a considerable challenge. Thus, choosing a suitable controllable method for synthesizing nanoporous materials is crucial to obtain appropriate properties. Herein, nanoporous titania particles (NPTPs) were prepared via the hydrothermal. This study investigated how the synthesis parameters such as the type of chelating agent, the hydrolysis method, and the drying technique affected the properties of NPTPs. The synthesis NPTPs were characterized by XRD, FESEM, and BET. The results demonstrated that when acetylacetone (ACAC) (as the chelating agent), the spray-hydrolysis (SH) method, and the freeze-drying (FD) technique were used, NPTPs achieved a more uniform particle shape, a smaller particle size, a larger pore size, a larger pore volume, and a higher surface area. Ultimately, the photocatalytic degradation (PCD) of methylene blue (MB) was examined using improved NPTPs.

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Application of visible light active photocatalysis for water contaminants: A review

Sun

O’Connell

2022

Water Environment Research

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Organic water pollutants are ubiquitous in the natural environment arising from domestic products as well as current and legacy industrial processes. Many of these organic water pollutants are recalcitrant and only partially degraded using conventional water and wastewater treatment processes. In recent decades, visible light active photocatalyst has gained attention as a non‐conventional alternative for the removal of organic pollutants during water treatment, including industrial wastewater and drinking water treatment. This paper reviews the current state of research on the use of visible light active photocatalysts, their modified methods, efficacy, and pilot‐scale applications for the degradation of organic pollutants in water supplies and waste streams. Initially, the general mechanism of the visible light active photocatalyst is evaluated, followed by an overview of the major synthesis techniques. Because few of these photocatalysts are commercialized, particular attention was given to summarizing the different types of visible light active photocatalysts developed to the pilot‐scale stage for practical application and commercialization. The organic pollutant degradation ability of these visible light active photocatalysts was found to be considerable and in many cases comparable with existing and commercially available advanced oxidation processes. Finally, this review concludes with a summary of current achievements and challenges as well as possible directions for further research. Practitioner Points Visible light active photocatalysis is a promising advanced oxidation process (AOP) for the reduction of organic water pollutants. Various mechanisms of photocatalysis using visible light active materials are identified and discussed. Many recent photocatalysts are synthesized from renewable materials that are more sustainable for applications in the 21st century. Only a small number of pilot‐scale applications exist and these are outlined in this review.

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The removal of methylene blue as a remedy of dye-based marine pollution: a photocatalytic perspective

Cited by 24 publications

References 59 publications

Comparative Study of Synthesis Parameters of Nanoporous Titania Particles to Improve Structural Properties and Photocatalytic Activity

Comparative Study of Synthesis Parameters of Nanoporous Titania Particles to Improve Structural Properties and Photocatalytic Activity

Comparative Study of Synthesis Parameters of Nanoporous Titania Particles to Improve Structural Properties and Photocatalytic Activity

Application of visible light active photocatalysis for water contaminants: A review

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