Photocatalytic degradation of Rhodamine B using CaCu3Ti4O12 embedded polyethersulfone hollow fiber membrane

Otitoju, Tunmise Ayode; Jiang, Dafu; Ouyang, Yuanyuan; Elamin, Mohammed Ahmedelbadawi Mohammed; Li, San Xi

doi:10.1016/j.jiec.2019.11.022

Cited by 30 publications

(13 citation statements)

References 41 publications

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“…Especially, adsorption, filtration processes did not destroy organic dyes which only incorporated them into the sludge waste [8,11,12] . On the contrary, advanced oxidation processes for the destruction of organic compounds have aroused much attractive in recent years [5,[12][13][14][15][16] . Particularly, heterogeneous catalysts are of great interest for chemically advanced treatment of waste water because of their abilities to undergo the selective oxidation process to produce less hazardous products.…”

Section: Introductionmentioning

confidence: 99%

Oxidative Treatment of Rhodamine B Solution on CoOx/sepiolite Catalysts

Tien

Long

Ngoc

et al. 2020

Fine Chemical Engineering

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Sepiolite loaded with different cobalt oxide contents has been prepared by the precipitation method followed by calcination at 410ºC. The synthesized Co-loaded samples were characterized by physical methods using XRD, SEM, BET, and H2-TPR. The obtained solids have a large specific area and good distribution of cobalt oxide nanoparticles on sepiolite carrier. The catalysts were tested for the oxidative removal of rhodamine B solution and found that 1.0 – 3.0 wt.% cobalt ion/sepiolite samples exhibited the highest decoloration efficiency of rhodamine B (88-90%) in the presence of hydrogen peroxide at room temperature after the treatment of 30 mg/L of RhB solution in 210 minutes.

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Section: Introductionmentioning

confidence: 99%

Oxidative Treatment of Rhodamine B Solution on CoOx/sepiolite Catalysts

Tien

Long

Ngoc

et al. 2020

Fine Chemical Engineering

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“…Moreover, the introduction of fMWCNTs-TiO 2 on the surface of the membrane will cause a steric hindrance effect, which might prevent HA from making contact with the membrane [ 52 , 53 ]. This result indicates that the MMM incorporated with fMWCNTs-TiO 2 NPs was easier to clean than the MMM and that it imparts resistance to HA adsorption.…”

Section: Resultsmentioning

confidence: 99%

“…A membrane with a better hydrophilic character will weaken the hydrophobic interaction between the membrane surface and the foulant, enabling the foulant that is adsorbed on membrane surface to be easily washed away using hydraulic method of cleaning. Moreover, the introduction of fMWCNTs-TiO 2 on the surface of the membrane will cause a steric hindrance effect, which might prevent HA from making contact with the membrane [52,53]. This result indicates that the MMM incorporated with fMWCNTs-TiO 2 NPs was easier to clean than the MMM and that it imparts resistance to HA adsorption.…”

Section: Membrane Fouling Analysismentioning

confidence: 99%

Removal of Humic Acid Using 3-Methacryloxypropyl Trimethoxysilane Functionalized MWCNT Loaded TiO2/PES Hybrid Membrane

et al. 2021

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In the present work, a highly efficient mixed matrix membrane (MMM) for humic acid (HA) removal was developed. Multiwalled carbon nanotubes (MWCNTs) were functionalized in the presence of 3-methacryloxypropyl trimethoxysilane using the co-condensation method and were subsequently loaded with TiO2 (prepared via the sol–gel route). The as-prepared material was then incorporated into a PES polymer solution to prepare a fMWCNT-TiO2/PES hybrid membrane via non-solvent induced phase inversion. The microstructure of the membrane was characterized using Fourier transform infrared spectroscopy, atomic force microscopy, scanning electron microscopy, water contact angle, thickness, porosity, and pore size. The fMWCNT-TiO2/PES hybrid membrane was tested for the removal of HA and antifouling performance. The results show that the surface hydrophilicity of the membranes was greatly improved upon the addition of the fMWCNT-TiO2 particles. The results show that 92% of HA was effectively removed after 1 h of filtration. In comparison with pristine membrane, the incorporation of fMWCNT-TiO2 nanoparticles led to enhanced pure water flux (99.05 L/m2 h), permeate flux (62.01 L/m2 h), higher HA rejection (92%), and antifouling improvement (RFR: 37.40%, FRR: 86.02%). Thus, the fMWCNT-TiO2/PES hybrid membrane is considered to be a great potential membrane for the improvement of ultrafiltration membranes.

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“…Among the various kinds of light active photocatalyst, the perovskite-based photocatalyst has a unique photophysical property due to its distinct advantages [15][16][17][18][19] Perovskite compounds such as BaTiO3 [20], CaTiO3 [21], CoTiO3 [22], NiTiO3 [23], LaFeO3 [24] are extensively used as a photocatalyst due to its favourable band edge properties.…”

Section: Introductionmentioning

confidence: 99%

“…studied the degradation of Rhodamine Blue (RhB) in the presence of CaCu3Ti4O12 modified polyethersulfone fibre membrane. [18]. Zhu and his co-workers studied the removal of ibuprofen in presence of CCTO catalyst under visible light irradiation [39].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of CaxCu3-xTi4O12 Perovskite Materials and House-Hold LED Light Mediated Degradation of Rhodamine Blue Dye

Saikia

Sarmah

Ahmed

et al. 2021

J Inorg Organomet Polym

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This report describes a comparative study of dye degradation under 20-watt LED light using the perovskite photocatalyst Calcium Copper Titanate (CCTO) and its compositions (CaxCu3-xTi4O12) (x=1, 1.5 and 2), synthesized by changing molar ratios of Ca 2+ and Cu 2+ ions. The 99.74% degradation of Rhodamine Blue (RhB) with composition (x=1) within 6 h is reflected its better photocatalytic activity than the parent CCTO and other compositions. The band gap energy of the materials 2.18 eV (CCTO), 1.93 eV (x=1), 2.40 eV (x=1.5), and 2.55 eV (x=2) are analysed with UV-Vis spectroscopy. The presences of Ca, Cu, Ti and O in the synthesized photocatalysts are confirmed with Elemental X-ray Dispersive (EDX) analysis. The cubic phases in the polyhedral shape of the materials are detected in Xray diffraction and Scanning Electron Microscopy (SEM). This report further observes the defect density concentrations of the materials with Photoluminescence Spectroscopy (PL) and provides the approximate explanation of their dye degradation performance as photocatalysts.The rate constants are found in a first order reaction trend; where the composition (x=1)shows about 1.683×10 -2 min -1 . The mechanistic understanding of the degradation process is also revisited and rationalized with different scavengers for the process.

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Photocatalytic degradation of Rhodamine B using CaCu3Ti4O12 embedded polyethersulfone hollow fiber membrane

Cited by 30 publications

References 41 publications

Oxidative Treatment of Rhodamine B Solution on CoOx/sepiolite Catalysts

Oxidative Treatment of Rhodamine B Solution on CoOx/sepiolite Catalysts

Removal of Humic Acid Using 3-Methacryloxypropyl Trimethoxysilane Functionalized MWCNT Loaded TiO2/PES Hybrid Membrane

Synthesis of CaxCu3-xTi4O12 Perovskite Materials and House-Hold LED Light Mediated Degradation of Rhodamine Blue Dye

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