A review on TiO2/SnO2 heterostructures as a photocatalyst for the degradation of dyes and organic pollutants

Rajput, Rekha B.; Jamble, Shweta N.; Kale, Rohidas B.

doi:10.1016/j.jenvman.2022.114533

Cited by 62 publications

(23 citation statements)

References 116 publications

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“…A recent review reported recent developments in the heterostructures of Ti and Sn oxides used as photocatalysts. The revised techniques are hydrothermal, sol–gel, electrospinning, precipitation, and the combination of these methods for the production of undoped, doped, or ternary TiO 2 -SnO 2 materials and their use for the degradation of organic pollutants from water [ 97 ].…”

Section: Strategies To Enhance Daylight Titania Nanoparticles’ Photoa...mentioning

confidence: 99%

Daylight Photoactive TiO2 Sol-Gel Nanoparticles: Sustainable Environmental Contribution

Barcelos

Gonçalves

2023

Materials

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Visible-light-photoactive titania micro- or nanoparticles excel in a wide range of industrial areas, particularly in environmental remediation. The sol–gel methodology is one pivotal technique which has been successfully used to synthesize either crystalline and amorphous TiO2 micro- and nanoparticles due to its outstanding chemical simplicity and versatility, along with the green chemistry approach. This short review aims to collect and discuss the most recent developments in visible-light-photoactive titania-based nanoparticles in the environmental remediation area. Titania co-doping, titania composite design, and, recently, amorphous networks have been the most used strategies to address this goal. Finally, a prediction regarding the future of these fields is given.

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Section: Strategies To Enhance Daylight Titania Nanoparticles’ Photoa...mentioning

confidence: 99%

Daylight Photoactive TiO2 Sol-Gel Nanoparticles: Sustainable Environmental Contribution

Barcelos

Gonçalves

2023

Materials

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“…Cobalt-doped tin oxide nanoparticles and sulphur-doped graphitic carbon nitride have been recommended for S-scheme Co-SnO 2 /SGCN heterojunction. In previous projects, the removal of pollutants with Co-SnO 2 [42,48], SnO 2 /r GO [54,55], TiO 2 /SnO 2 [56], g-C 3 N 4 /rGO/SnO 2 [57] has been reported.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Effective Co-SnO2/SGCN Photocatalysts for the Removal of Organic Pollutants and Pathogen Inactivation

et al. 2023

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Substantial improvement is needed in efficient and affordable decolorization and disinfection methods to solve the issues caused by dyes and harmful bacteria in water and wastewater. This work involves the photocatalytic degradation of methylene blue (MB) as well as gram-negative and gram-positive bacteria by cobalt-doped tin oxide (Co-SnO2) nanoparticles (NPs) and Co-SnO2/SGCN (sulfur-doped graphitic carbon nitride) nanocomposites (NCs) under sunlight. The coprecipitation approach was used to synthesize the photocatalysts. Maximum methylene blue (MB) photocatalytic degradation was seen with the 7% Co-SnO2 NPs compared to other (1, 3, 5, and 9 wt.%) Co-SnO2 NPs. The 7% Co-SnO2 NPs were then homogenized with different amounts (10, 30, 50, and 70 weight %) of sulfur-doped graphitic carbon nitride (SGCN) to develop Co-SnO2/SGCN heterostructures with the most significant degree of MB degradation. The synthesized samples were identified by modern characterization methods such as FT-IR, SEM, EDX, UV-visible, and XRD spectroscopies. The Co-SnO2/50% SGCN composites showed a significant increase in MB degradation and degraded 96% of MB after 150 min of sunlight irradiation. Both gram-negative (E. coli) and gram-positive (B. subtiles) bacterial strains were subjected to antibacterial activity. All samples were shown to have vigorous antibacterial activity against gram-positive and gram-negative bacteria, but the Co-SnO2/50% SGCNcomposites exhibited the maximum bactericidal action. Thus, the proposed NC is an efficient organic/inorganic photocatalyst that is recyclable and stable without lowering efficiency. Hence, Co-SnO2/50% SGCNNC has the potential to be employed in water treatment as a dual-functional material that simultaneously removes organic pollutants and eradicates bacteria.

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“…Globally, humanity currently faces difficult challenges within the ecological environment due to the increase in the human population and the increase in industrialization, which have repercussions and various consequences for living beings. 1,2 Some effects that stand out are the deterioration of the ozone layer, severe droughts, pollution of rivers and lakes, and the scarcity of drinking water, which is the product of demographic overexploitation and excessive use by different industries, such as the use of phenolic compounds for the manufacture of cosmetics and pharmaceutical products, paints, the textile industry, etc. 1,3 Additionally, the water used by these industries is discharged as effluent into different water currents.…”

Section: Introductionmentioning

confidence: 99%

Improvement of photocatalytic activity in the degradation of 4-chlorophenol and phenol in aqueous medium using tin-modified TiO₂ photocatalysts

et al. 2023

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A review on TiO2/SnO2 heterostructures as a photocatalyst for the degradation of dyes and organic pollutants

Cited by 62 publications

References 116 publications

Daylight Photoactive TiO2 Sol-Gel Nanoparticles: Sustainable Environmental Contribution

Daylight Photoactive TiO2 Sol-Gel Nanoparticles: Sustainable Environmental Contribution

Fabrication of Effective Co-SnO2/SGCN Photocatalysts for the Removal of Organic Pollutants and Pathogen Inactivation

Improvement of photocatalytic activity in the degradation of 4-chlorophenol and phenol in aqueous medium using tin-modified TiO₂ photocatalysts

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A review on TiO2/SnO2 heterostructures as a photocatalyst for the degradation of dyes and organic pollutants

Cited by 62 publications

References 116 publications

Daylight Photoactive TiO2 Sol-Gel Nanoparticles: Sustainable Environmental Contribution

Daylight Photoactive TiO2 Sol-Gel Nanoparticles: Sustainable Environmental Contribution

Fabrication of Effective Co-SnO2/SGCN Photocatalysts for the Removal of Organic Pollutants and Pathogen Inactivation

Improvement of photocatalytic activity in the degradation of 4-chlorophenol and phenol in aqueous medium using tin-modified TiO2 photocatalysts

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Improvement of photocatalytic activity in the degradation of 4-chlorophenol and phenol in aqueous medium using tin-modified TiO₂ photocatalysts