Photocatalytic Degradation of Synthetic Organic
Reactive Dye Wastewater Using GO-TiO&lt;sub&gt;2&lt;/sub&gt;
Nanocomposite

Kumaran, Vetriselvan; Sudhagar, P; Konga, Ajay Kumar; Ponniah, GomathiPriya

doi:10.15244/pjoes/109027

Cited by 21 publications

(8 citation statements)

References 14 publications

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“…While the absorption peak of GO‐TiO 2 materials at 546 and 683 cm −1 corresponds to the stretching vibration peak of Ti─O bond. Combined with the XRD patterns of GO‐TiO 2 , find GO‐TiO 2 materials were successfully prepared 25,26 …”

Section: Resultsmentioning

confidence: 99%

Fabrication of an antifoulingGO‐TiO₂/PESultrafiltration membrane

Wang

Shi

Zhang

et al. 2021

J of Applied Polymer Sci

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PES ultrafiltration membrane is widely used in various fields due to its high‐filtration efficiency. However, due to its hydrophobicity, PES ultrafiltration membrane has poor antifouling performance, this reduced service life and increased industrial cost. Blending is a common method in ultrafiltration membrane hydrophilic modification. Adding a small amount of inorganic nanoparticles into the polymer membrane can improve the properties of the polymer membrane. However, nanoparticles are not uniformly dispersed in polymer membrane, which hindering the modification ability of nanoparticles to ultrafiltration membrane. In this paper, GO‐TiO2 materials were prepared by hydrothermal method, and GO‐TiO2/PES blended ultrafiltration membranes were fabricated by nonsolvent induced phase separation (NIPs). The experimental results show that GO‐TiO2 disperse uniformly in GO‐TiO2/PES ultrafiltration membrane, which greatly improved the antifouling performance of the membrane. When the addition amount of GO‐TiO2 is 0.6%, the water flux of membrane reaches 194.5 (L m−2 h−1), and the rejection rate of BSA reaches 89.4%. After three pollutions‐cycles, the flux recovery rate of the membrane is 90.2%.

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Section: Resultsmentioning

confidence: 99%

Fabrication of an antifoulingGO‐TiO₂/PESultrafiltration membrane

Wang

Shi

Zhang

et al. 2021

J of Applied Polymer Sci

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“…Most of the adsorbent materials take only 120–150 min at room temperature for the complete removal of pollutants that offers both a quick and cost-effective alternate among a range of materials and procedures. Considering the high surface area and oxy-functionalities of GO and bandgap reduction quality of composites synthesized by decorating semiconductor NPs such as ZnO, ZnS, WO 3 , and Fe 2 O 3 on its surface, these composite materials have significantly been exploited for the adsorptive as well as photocatalytic removal of contaminants from wastewater. − TiO 2 NPs are preferred semiconductor nanostructures to form composites due to their higher chemical stability and nonhazardous nature. Previous studies have reported the adsorption efficiency of only TiO 2 NPs around 12%–15%, which could fairly be enhanced by using GO templates significantly .…”

Section: Recent Research Carried Out In Wastewater Treatment Through ...mentioning

confidence: 99%

Water Challenges in South Asian Countries: A Focused Review on Emerging Nanomaterials and Technological Processes in Wastewater Treatment

2023

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South Asia, the world's most populated region, is facing many environmental and healthcare challenges due to poor freshwater management/wastewater treatment. Most South Asian (SA) countries, such as India, Pakistan, Sri Lanka, and Bangladesh, are suffering from water pollution issues generated due to domestic and industrial effluents containing heavy/toxic ions, textile dyes, pharmaceuticals, bacteria/viruses inorganic/organic pollutants, etc. To overcome these challenges, extensive research is being carried out with an emphasis on technological development to maintain water sustainability. The present review discusses water pollution as well as various challenges in SA countries along with solutions through scientific research carried out by developing nanomaterials and technological wastewater treatment processes, i.e., photocatalytic/adsorptive removal, disinfection, tracing/sensing, etc. Particularly, syntheses of TiO 2 nanoparticles and graphene oxide (GO)-based nanomaterials which were found to be most extensively investigated in the SA region have been discussed with emphasis on their multifunctional applications using various water treatment processes, mechanisms, and synergetic effects. Eventually, various challenging issues and solution opportunities are discussed for future development to maintain water sustainability in SA countries.

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“…According to related literatures [9][10][11][12][13][14][15], there are a variety of catalysts in photocatalysis, such as TiO 2 , ZnO, BiVO 4 , ZrO 2 , CdS, C 3 N 4 , and so forth. Among them, BiVO 4 is a widely used photocatalytic material due to its better absorption property for visible light.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Fly Ash Magnetic Glass Microsphere@BiVO<sub>4</sub> and Its Hybrid Action of Visible-Light Photocatalysis and Adsorption Process

Cheng¹,

Chen²,

Wang³

et al. 2021

Pol. J. Environ. Stud.

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A novel composite photocatalyst (fly ash magnetic glass microsphere@BiVO 4 , called FaBi), where the magnetic glass microsphere (from fly ash) was used as magnetic carriers for BiVO 4 , was synthesized. The properties of composite photocatalyst were characterized by XRD, FT-IR, SEM, XPS, UV-vis, magnetic hysteresis loop and DFT caculation. After the synthesis reaction, the smaller spherical BiVO 4 (2-4 μm) was successfully loaded on the surface of magnetic glass microspheres. The composite catalyst of FaBi had obvious ferromagnetism, and the saturation magnetization was 27.52 emu/g. The photocatalytic experiments results showed that the composite catalyst could effectively degrade MB (Methylene blue) in the solution under visible light excitation. The apparent degradation process of MB was satisfactorily fitted by the first-order reaction kinetics. After several times of recycling, the photocatalysis of the material remained basically stable. The photocatalytic degradation of MB in solution was mainly due to the direct oxidation of free holes and related free radical reaction. The efficient adsorption of MB from solution was ascribed to large specific surface area of composite catalyst. The adsorption process was well modeled by the pseudo-first-order kinetic equation and Langmuir adsorption isotherm. The adsorption function enhanced the degradation effect of photocatalysis for target pollutant in solution. DFT calculation verified the photocatalytic properties of BiVO 4 (calculated energy band is 2.213eV) under visible light. The fly ash magnetic glass microsphere could be used as an excellent magnetic carrier for photocatalyst materials.

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Photocatalytic Degradation of Synthetic Organic Reactive Dye Wastewater Using GO-TiO<sub>2</sub> Nanocomposite

Cited by 21 publications

References 14 publications

Fabrication of an antifoulingGO‐TiO₂/PESultrafiltration membrane

Fabrication of an antifoulingGO‐TiO₂/PESultrafiltration membrane

Water Challenges in South Asian Countries: A Focused Review on Emerging Nanomaterials and Technological Processes in Wastewater Treatment

Synthesis of Fly Ash Magnetic Glass Microsphere@BiVO<sub>4</sub> and Its Hybrid Action of Visible-Light Photocatalysis and Adsorption Process

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Photocatalytic Degradation of Synthetic Organic Reactive Dye Wastewater Using GO-TiO<sub>2</sub> Nanocomposite

Cited by 21 publications

References 14 publications

Fabrication of an antifoulingGO‐TiO2/PESultrafiltration membrane

Fabrication of an antifoulingGO‐TiO2/PESultrafiltration membrane

Water Challenges in South Asian Countries: A Focused Review on Emerging Nanomaterials and Technological Processes in Wastewater Treatment

Synthesis of Fly Ash Magnetic Glass Microsphere@BiVO<sub>4</sub> and Its Hybrid Action of Visible-Light Photocatalysis and Adsorption Process

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Product

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Fabrication of an antifoulingGO‐TiO₂/PESultrafiltration membrane

Fabrication of an antifoulingGO‐TiO₂/PESultrafiltration membrane