Photodegradation of rhodamine B-dye pollutant using CaCu3Ti4O12-multiwall carbon nanotube nanocomposites

Ahmadipour, Mohsen; Hamzah, Azrul Azlan; Pang, Ai Ling; Le, Anh Thi; Chiam, Sin-Ling; Ahmad, Zainal Arifin; Rajitha, Beerelli; Pung, Swee‐Yong

doi:10.1016/j.jece.2021.105185

Cited by 74 publications

(7 citation statements)

References 44 publications

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“…In recent years, many different parts of society have given considerable notice to the problem of ecological contamination by numerous influences, especially in terms of water and its importance to humans. Due to the health‐damaging effects caused by wastewater, scientists and researchers are now focused on ways to disinfect the water from toxic substances with the specific intent of removing environmental contaminants using fast and low‐cost methods 1–4 . Several physical and chemical methods that can be used to remove organic dye include membranes, adsorption, electrochemical precipitation, and photocatalysis 5–8 Photocatalysis has become a great choice in handling wastewater treatment because of the method is economical and considered as green technology 9,10 .…”

Section: Introductionmentioning

confidence: 99%

“…Due to the health-damaging effects caused by wastewater, scientists and researchers are now focused on ways to disinfect the water from toxic substances with the specific intent of removing environmental contaminants using fast and low-cost methods. [1][2][3][4] Several physical and chemical methods that can be used to remove organic dye include membranes, adsorption, electrochemical precipitation, and photocatalysis [5][6][7][8] Photocatalysis has become a great choice in handling wastewater treatment because of the method is economical and considered as green technology. 9,10 The process of photocatalysis is depends on the electrons excitement from the valence band (VB) to the conduction band (CB) upon exposure to the light.…”

Section: Introductionmentioning

confidence: 99%

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High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Pang

Arsad

Ahmadipour

et al. 2022

Polymers for Advanced Techs

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Over the years, there has been an emphasis on the improvement of novel materials for photocatalytic processes for practical application in treating wastewater. In this sense, the ultrasonic-assisted in-situ chemical polymerization route was used to synthesize polypyrrole-multiwall carbon nanotubes (PPy-MWCNTs) nanocomposites. The transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet visible (UV-vis) analysis were employed to study the impact of MWCNTs on the properties of PPy. TEM showed that the PPy-MWCNTs nanocomposites consist of spherical PPy with 80 nm particle size, while the MWCNTs showed inner and outer diameters of 7 nm and 13 nm, respectively. XRD analysis showed that the crystallinity of the PPy increased with MWCNTs loading. The potential of PPy-MWCNTs nanocomposites as photocatalysts was evaluated via the photodegradation of rhodamine B (RhB) and methylene blue (MB) dyes. The photodegradation efficiency was found to have improved with increasing MWCNTs loading. Almost 99.36% and 78.30% of RhB and MB dye degradation were achieved after 35 min of reaction for the highest loading of MWCNTs. The remarkable nanocomposite photocatalytic activity was attributed to the optical bandgap energy (E g ) reduction with the addition of MWCNTs. These results foreshadow the potential use of the PPy-MWCNTs nanocomposites for water purification.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Pang

Arsad

Ahmadipour

et al. 2022

Polymers for Advanced Techs

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“…A 4 mL portion of the solution was taken every 15 min and centrifuged. The concentration of each pollutant left in the supernatant solution was analyzed using a UV–vis–NIR spectrometer (V-670, JASCO, Tokyo Japan). − Finally, the degradation efficiencies of organic dyes and TC were calculated based on eq − degradation efficiency false( % false) = C 0 − C t C 0 × 100 where C t is the concentration at irradiation time t and C 0 is the initial concentration of the pollutant.…”

Section: Methodsmentioning

confidence: 99%

Highly Efficient Solar Light Driven g-C₃N₄@Cs_0.33WO₃ Heterojunction for the Photodegradation of Colorless Antibiotics

Tessema

Motora

2022

ACS Omega

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This study facilitates the synthesis of a graphitic carbon nitride/cesium tungsten oxide (g-C3N4@Cs0.33WO3) heterojunction using a solvothermal method. The photocatalytic activities of the prepared samples were examined for the photodegradation of colorless antibiotics, namely tetracycline, enrofloxacin, and ciprofloxacin, as well as cationic and anionic dyes, such as methyl orange, rhodamine B, neutral red, and methylene blue, under full-spectrum solar light. We have purposely selected different kinds of wastewater pollutants of colorless antibiotics and cationic and anionic organic dyes to investigate the potential application of this heterojunction toward different groups of water pollutants. The results revealed that the g-C3N4@Cs0.33WO3 heterojunction showed an outstanding photocatalytic activity toward all the pollutants with concentrations of 20 ppm each at pH 3 by photocatalytically removing 97% of tetracycline within 3 h, 98% of enrofloxacin within 2 h, 97% of ciprofloxacin within 2.25 h, 98% of methylene blue in 1 h, 99% of rhodamine B within 2 h, 99% of neutral red in 1.25 h, and 95% of methyl orange in 2 h. These findings indicate that the developed photocatalyst possesses excellent photocatalytic properties toward seven different water pollutants that make it a universal photocatalyst. The developed g-C3N4@Cs0.33WO3 oxide heterojunction also presented a photocatalytic performance better than those of reported solar light active photocatalysts for photodegradation of rhodamine B and tetracycline. The efficient photocatalytic performance of the heterojunction can be ascribed to its extended light-absorbing ability, effective charge separation and fast charge transfer properties, and a high surface area. Moreover, an active species detection experiment also confirmed that superoxide radicals, hydroxyl radicals, and holes played significant roles in the photocatalysis of the organic dyes and tetracycline.

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“…11,12 Different methods such as electrochemical, sonochemical, photocatalytic, dark-Fenton, photo-Fenton, and electro-Fenton oxidation methods have been applied for the reduction or degradation reactions. [13][14][15] In the photocatalytic approach, as a chemical method, pollutants may be ultimately eliminated before entering wastewater. 16,17 Due to their high chemical and thermal stability, semiconductors are known as the best photocatalysts for the elimination of contaminants.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Fe₃O₄/ZrO₂/CuO magnetic nanohybrids and their applications in reducing chromium(vi) and degrading methylene blue under sunlight

2023

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Photodegradation of rhodamine B-dye pollutant using CaCu3Ti4O12-multiwall carbon nanotube nanocomposites

Cited by 74 publications

References 44 publications

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Highly Efficient Solar Light Driven g-C₃N₄@Cs_0.33WO₃ Heterojunction for the Photodegradation of Colorless Antibiotics

Synthesis of Fe₃O₄/ZrO₂/CuO magnetic nanohybrids and their applications in reducing chromium(vi) and degrading methylene blue under sunlight

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Photodegradation of rhodamine B-dye pollutant using CaCu3Ti4O12-multiwall carbon nanotube nanocomposites

Cited by 74 publications

References 44 publications

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Highly Efficient Solar Light Driven g-C3N4@Cs0.33WO3 Heterojunction for the Photodegradation of Colorless Antibiotics

Synthesis of Fe3O4/ZrO2/CuO magnetic nanohybrids and their applications in reducing chromium(vi) and degrading methylene blue under sunlight

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Product

Resources

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Highly Efficient Solar Light Driven g-C₃N₄@Cs_0.33WO₃ Heterojunction for the Photodegradation of Colorless Antibiotics

Synthesis of Fe₃O₄/ZrO₂/CuO magnetic nanohybrids and their applications in reducing chromium(vi) and degrading methylene blue under sunlight