Enhanced sunlight-driven photocatalytic activity of SnO2-Sb2O3 composite towards emerging contaminant degradation in water

Rosaline, D. Rani; Suganthi, A.; Vinodhkumar, G.; Inbanathan, S.S.R.; Ameen, Sadia; LuizFoletto, Edson

doi:10.1016/j.jallcom.2021.162935

Cited by 18 publications

(8 citation statements)

References 35 publications

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“…Iron oxide shows peaks between 2955 cm −1 and 2857 cm −1 in both samples [50]. The peaks occurring in the range of ~827 to ~732 cm −1 are due to the Sb-O-Sb vibrations [51,52]. The metal oxide Zn 2 Fe 2 O 4 stretching bonds at tetrahedral and octahedral sites are observed at absorption bands in the range of 700-400 cm −1 [51][52][53][54][55].…”

Section: Results Of Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 95%

“…The peaks occurring in the range of ~827 to ~732 cm −1 are due to the Sb-O-Sb vibrations [51,52]. The metal oxide Zn2Fe2O4 stretching bonds at tetrahedral and octahedral sites are observed at absorption bands in the range of 700-400 cm −1 [51][52][53][54][55]. Based on XRPD analyses, quartz (silicon oxide, ICSD No.…”

Section: Results Of Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

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Possibility of Using Vitreous Enamel Waste in the Construction Industry as the Concept of Cleaner Production

et al. 2023

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Waste vitreous enamels from the heating device production process were used for partial replacement of cement in the mortar and concrete production industry. This waste, due to the high content of heavy metals, is classified as hazardous waste. At the same time, waste vitreous enamels possess pozzolanic activity and belong to class 15 (WEP—generated during the production process of heating devices, premix technology), that is 5 (WETM—generated during the production process of heating devices, classic technology) of pozzolanic materials. The purpose of this research was to develop new composites from these wastes to reduce the deposition of the toxic compounds and reduce their environmental impact. The chemical and physical-chemical characterization and pozzolanic activity of the raw waste materials were studied by a mixture of complementary methods, as well as physical-mechanical characterization and a leaching test of mortar and concrete composites. The results indicate that the replacement of cement with WEP up to 30%, or with WETM up to 20% does not significantly affect the quality of concrete in comparison to the quality of the reference concrete prepared with 100% cement. The leaching test showed no significant release of toxic elements for both obtained composites.

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Section: Results Of Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 95%

Section: Results Of Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

Possibility of Using Vitreous Enamel Waste in the Construction Industry as the Concept of Cleaner Production

et al. 2023

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“…For the degradation of organic pollutants, many types of photocatalysts are used, such as metal oxides, metal sulfides semiconductors, and nanomaterials. Among these materials, oxides (for example SnO 2 , ZnO, TiO 2 , CuO, and Fe 2 O 3 ) are extremely important and are widely used in the degradation of pollutants and dyes [27][28][29][30][31]. SnO 2 have great importance and have an energy band gap of 3.5 to 3.8 eV, which falls under the UV region [32].…”

Section: Introductionmentioning

confidence: 99%

“…In this project, the synthesis of tin oxide, cobalt-doped tin oxide with various percentages of cobalt (1, 3, 5, 7, and 9), and 7% Cobalt doped tin oxide composites with various percentages of sulphur doped graphitic carbon nitride (10,30,50,70) were prepared by the simple and facile coprecipitation method. Photodegradation of methylene blue dye was carried out with these synthesized photocatalysts under sunlight.…”

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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“…The major problem is the removal of contaminants from water. In this context, photocatalysis is one promising method to remove contaminants from water [41,42].…”

Section: Introductionmentioning

confidence: 99%

Poly(1-Napthylamine) Nanoparticles as Potential Scaffold for Supercapacitor and Photocatalytic Applications

Umar

Rosaline³

et al. 2022

Micromachines

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Herein, we explore the supercapacitor and photocatalytic applications of poly(1-naphthylamine) (PNA) nanoparticles. The PNA nanoparticles were synthesized by using polymerization of 1-naphthylamine and characterized with several techniques in order to understand the morphological, structural, optical and compositional properties. The structural and morphological properties confirmed the formation of crystalline nanoparticles of PNA. The Fourier-transform infrared (FTIR) spectrum revealed the successful polymerization of 1-naphthylamine monomer to PNA. The absorption peaks that appeared at 236 and 309 nm in the UV–Vis spectrum for PNA nanoparticles represented the π–π* transition. The supercapacitor properties of the prepared PNA nanoparticles were evaluated with cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) methods at different scan rates and current densities, respectively. The effective series resistance was calculated using electrochemical impedance spectroscopy (EIS), resulting in a minimum resistance value of 1.5 Ω. The highest specific capacitance value of PNA was found to be 255 Fg−1. This electrode also exhibited excellent stability with >93% capacitance retention for 1000 cycles, as measured at 1A g−1. Further, the prepared PNA nanoparticles were used as an effective photocatalyst for the photocatalytic degradation of methylene blue (MB) dye, which exhibited ~61% degradation under UV light irradiation. The observed results revealed that PNA nanoparticles are not only a potential electrode material for supercapacitor applications but also an efficient photocatalyst for the photocatalytic degradation of hazardous and toxic organic dyes.

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Enhanced sunlight-driven photocatalytic activity of SnO2-Sb2O3 composite towards emerging contaminant degradation in water

Cited by 18 publications

References 35 publications

Possibility of Using Vitreous Enamel Waste in the Construction Industry as the Concept of Cleaner Production

Possibility of Using Vitreous Enamel Waste in the Construction Industry as the Concept of Cleaner Production

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

Poly(1-Napthylamine) Nanoparticles as Potential Scaffold for Supercapacitor and Photocatalytic Applications

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