Hierarchical growth of BiOCl on SrO‐Bi2O3‐B2O3 glass‐ceramics for self‐cleaning applications

Singh, V. P.; Vaish, Rahul

doi:10.1111/jace.15449

Cited by 15 publications

(8 citation statements)

References 44 publications

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“…The obtained spectra for SBBO samples show a broadening of peaks throughout the spectra that can be justified by the structural disorder of the material. The bands of obtained spectra as shown in Figure are well matched with the previously reported SBBO vibration modes . The modes of spectra can be explained with vibration modes of the heavy metal ions as well as the vibrations in the borate framework.…”

Section: Resultsmentioning

confidence: 99%

Piezocatalysis Dye Degradation Using SrO-Bi₂O₃-B₂O₃ Glass-Ceramics

Porwal

Sharma

et al. 2022

ACS Appl. Eng. Mater.

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SrO-Bi2O3-B2O3 (SBBO) transparent glasses were fabricated via the conventional melt quenching technique. X-ray diffraction (XRD) was carried out to confirm the glassy nature. Differential scanning calorimetry (DSC) was utilized to gain knowledge about the crystallization temperature, and following that glass samples were heat-treated to achieve crystallinity. The obtained values of the glass transition temperature (T g), the onset of crystallization temperature (T cr), and the peak crystallization (T p) temperature are 408, 438, and 440 °C, respectively. The glasses were heated at 440 °C for 30 min, 1 h, and 2 h to form glass-ceramics. The SrBi2B2O7 phase was formed during 1 h of heat treatment of the glasses. Studies of active vibration modes were done by Raman spectroscopy for SBBO glass and glass-ceramic samples. Piezocatalysis experiments were carried out for the removal of organic pollutants with Methylene Blue (MB) dye as a model dye, and the obtained maximum dye degradation was 51% with a kinetic rate of 0.002 min–1 under 240 min of ultrasonication. Experiments were repeated for 5 cycles to confirm the repeatability, and different dyes were used for degradation to confirm the reliability of the prepared glass-ceramic sample. Furthermore, Vigna radiata seeds were used to study the byproduct of dye that had been degraded for the assessment of phytotoxicity.

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Section: Resultsmentioning

confidence: 99%

Piezocatalysis Dye Degradation Using SrO-Bi₂O₃-B₂O₃ Glass-Ceramics

Porwal

Sharma

et al. 2022

ACS Appl. Eng. Mater.

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“…The contact angle becomes negligible upon 45 minutes of UV irradiation. This photoinduced hydrophilicity is frequently used as an indicator of the self‐cleaning properties and photocatalytic efficiency of glass . The photoinduced hydrophilicity mainly originated from water adsorption on the photogenerated oxygen vacancies on the surface of photocatalyst .…”

Section: Resultsmentioning

confidence: 99%

Antibacterial and photocatalytic active transparent TiO₂ crystallized CaO–BaO–B₂O₃–Al₂O₃–TiO₂–ZnO glass nanocomposites

et al. 2018

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Transparent TiO2 crystallized 5CaO–10BaO–65B2O3–Al2O3–20TiO2–10ZnO (CBBATZ) glass nanocomposites were fabricated using melt‐quenching technique followed by specific heat treatments. As‐quenched glass samples were provided three different heat treatments at 630°C for 3, 5, and 10 hours in order to obtain different amounts of TiO2 nanocrystals in the glass. The presence of rutile phase of TiO2 nanocrystals in glass was confirmed by X‐ray diffraction. The glass nanocomposite heat treated for 10 hours showed a hydrophobic nature with contact angle of 90.90°. Contact angle decreased from 90.90 to 22.20°, when irradiated under ultraviolet (UV) radiation for 45 minutes. This photoinduced hydrophilicity showed a photocatalytic and self‐cleaning properties of glass nanocomposite. During photocatalytic ink test, the maximum change in color of Resurin (Rz) ink and 60% degradation in absorbance of ink within 150 minutes under UV radiation were found for glass nanocomposite heat treated at 10 hours. Also, 78% degradation in absorbance of methylene blue dye (pollutant) within 180 minutes under UV irradiation was found for glass naocomposite heat‐treated at 10 hours. Antibacterial performance of transparent glass nanocomposite against Escherichia coli was evaluated as well. More than 95% of the bacterial cells were degraded with glass nanocomposite heat‐treated at 10 hours. CBBATZ glass nanocomposite found to impart the antibacterial effect through generation of reactive oxygen species (ROS) in aqueous medium. ROS species which was confirmed in the bacterial cell through intracellular ROS generation kit. During evaluation of mechanical properties using nanoindentation technique, the values of hardness and reduced modulus increased by ~26% and 10%, respectively, for glass nanocomposite heat‐treated at 10 hours as compared to as‐quenched glass.

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“…[ 23,24 ] Self‐cleaning membranes responding to environmental stimuli such as magnetic fields, [ 25 ] temperature fluctuations, [ 26 ] and light [ 27,28 ] can cause changes in water flux and surface characteristics. Among the various stimulus‐responsive materials, photocatalytic materials have attracted considerable attention; [ 29–31 ] and TiO 2 is of particular interest because of its high catalytic activity, good chemical stability, low cost, and low toxicity. [ 32,33 ]…”

Section: Methodsmentioning

confidence: 99%

Electrospinning Oriented Self‐Cleaning Porous Crosslinking Polymer for Efficient Dyes Removal

Chen

et al. 2020

Adv Materials Inter

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used to selectively separate molecules on the basis of their electrical properties or shapes. [8-10] The topological morphology of the interfacial polymerization substrate is very important for the construction of supramolecular crosslinking polymers. We believe that the combination of interfacial polymerization [11,12] and electrospinning technology [13] could be a good universal method for preparing composite nanofiltration membranes, the structures and properties of which can be controlled by means of surface modification, [14] adjustment of the electrospinning parameters, [15] and the addition of functional nanoparticles to the spinning solution. Membrane separation technology is now widely used in pollutant treatment. [16-18] However, contamination of porous membrane surfaces is a bottleneck that prevents even wider use of this technology. [19-22] After dye-containing wastewater is filtered, membranes are generally recycled by washing with organic solvents, but this process generates dye-containing organic solvent waste. If this new waste is not handled properly, the dissolved dyes can re-enter the environment and cause secondary pollution. Therefore, the development of innovative methods for controlling membrane surface structure and preparing self-cleaning membranes would be highly valuable. [23,24] Self-cleaning membranes responding to environmental stimuli such as magnetic fields, [25] temperature fluctuations, [26] and light [27,28] can cause changes in water flux and surface characteristics. Among the various stimulusresponsive materials, photocatalytic materials have attracted considerable attention; [29-31] and TiO 2 is of particular interest because of its high catalytic activity, good chemical stability, low cost, and low toxicity. [32,33] In the current study, we interfacially polymerized β-cyclodextrin and four crosslinking agents on polyacrylonitrile (PAN) electrospun nanofibrous substrates with different morphologies (depending on the PAN concentration and the spinning orientation), and we investigated the utility of the resulting composite membranes for dye removal from aqueous solution. If TiO 2 was incorporated in the PAN electrospun nanofibrous substrate, UV irradiation of the used composite membranes efficiently degraded the adsorbed dye, rendering the composite membranes self-cleaning and thus reusable (Scheme 1). First, electrospinning technology was used to fabricate nanofibrous PAN and PAN/TiO 2 membranes with controlled fiber diameter and morphology. Then, β-cyclodextrin and The separation of harmful substances by supramolecular crosslinking polymers is the focus of current research. As far as it is known, supramolecular crosslinking systems based on electrospun nanofibers are rarely reported. However, electrospun nanofibers should be promising candidates for interfacial crosslinking substrates because of their adjustable morphology and can be doped with different functional nanoparticles. In this study, β-cyclodextrin and acyl chloride compounds are interfacially polymerized on polya...

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Hierarchical growth of BiOCl on SrO‐Bi₂O₃‐B₂O₃ glass‐ceramics for self‐cleaning applications

Cited by 15 publications

References 44 publications

Piezocatalysis Dye Degradation Using SrO-Bi₂O₃-B₂O₃ Glass-Ceramics

Piezocatalysis Dye Degradation Using SrO-Bi₂O₃-B₂O₃ Glass-Ceramics

Antibacterial and photocatalytic active transparent TiO₂ crystallized CaO–BaO–B₂O₃–Al₂O₃–TiO₂–ZnO glass nanocomposites

Electrospinning Oriented Self‐Cleaning Porous Crosslinking Polymer for Efficient Dyes Removal

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Hierarchical growth of BiOCl on SrO‐Bi2O3‐B2O3 glass‐ceramics for self‐cleaning applications

Cited by 15 publications

References 44 publications

Piezocatalysis Dye Degradation Using SrO-Bi2O3-B2O3 Glass-Ceramics

Piezocatalysis Dye Degradation Using SrO-Bi2O3-B2O3 Glass-Ceramics

Antibacterial and photocatalytic active transparent TiO2 crystallized CaO–BaO–B2O3–Al2O3–TiO2–ZnO glass nanocomposites

Electrospinning Oriented Self‐Cleaning Porous Crosslinking Polymer for Efficient Dyes Removal

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Product

Resources

About

Hierarchical growth of BiOCl on SrO‐Bi₂O₃‐B₂O₃ glass‐ceramics for self‐cleaning applications

Piezocatalysis Dye Degradation Using SrO-Bi₂O₃-B₂O₃ Glass-Ceramics

Piezocatalysis Dye Degradation Using SrO-Bi₂O₃-B₂O₃ Glass-Ceramics

Antibacterial and photocatalytic active transparent TiO₂ crystallized CaO–BaO–B₂O₃–Al₂O₃–TiO₂–ZnO glass nanocomposites