Photocatalytic degradation of reactive black 5 from synthetic and real wastewater under visible light with TiO2 coated PET photocatalysts DOI Creative Commons

Mohsen Mohammadi-Galangash,

Seyed Hossein Mousavi, Mehdi Shirzad‐Siboni

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 24, 2025

The photocatalytic removal of Reactive Black 5 (RB5) was investigated using a titanium dioxide-polyethylene terephthalate (TiO2-PET) catalyst under visible (VIS) light. sol-gel method employed for the fabrication TiO2-coated PET catalyst, which then characterized X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive (EDX), and elemental mapping (MAP) analysis. This study examined reaction kinetics one-factor-at-a-time (OFAT) approach evaluates effects various parameters, including pH (3-11), dosage (0.1-1 g L- 1), contact time (15-120 min), RB5 concentration (10-50 mg hydrogen peroxide (H2O2) content (2-100 mM), purging gases, organic compound types, ionic strength, on RB5. Under optimal conditions (pH= 3, [RB5]°= 20 1, nanocatalyst dosage= 0.5 99.99% dye removed after 120 min. Increasing 1) resulted in decrease observed rate constant (kobs) from 0.052 to 0.0017 min- while calculated electrical energy per order (EEO) increased 11.08 338.82 kWh m- 3. Furthermore, total operating cost light emitting diode (LED)/TiO2-PET process (3 USD kg- lower than that other processes, LED/TiO2 (4.73 LED/PET (40 LED (63.16 1). negatively affected by presence H2O2, O2 N2 compounds, species. Radical quenching experiments confirmed hydroxyl radicals (·OH) were dominant reactive species responsible degradation. efficiency LED/TiO2-PET (99.99%) significantly higher (63.42%). Desorption demonstrated excellent stability, maintaining catalytic activity up five sequential cycles. GC-MS analysis identified several intermediate degradation products, 1,2-benzenedicarboxylic acid, benzoic acid (2-amino-, methyl ester), benzene [(methylsulfonyl) methyl], phenol, 4-naphthalenedione, acetic propionic acid. Moreover, drinking water samples approximately 63.31%, whereas real textile wastewater samples, it reached 96.66%. Toxicity tests conducted final treated solutions no toxicity toward Daphnia magna, demonstrating effectiveness degrading both its toxic by-products.

Language: Английский

Novel insights into ammonia nitrogen removal: TiO2-based photocatalysts and potential of intimate coupling biodegradation DOI
Jing Yang, Ruihao Yang, Chunhua He

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115962 - 115962

Published: Feb. 1, 2025

Language: Английский

Citations

1
Developments and challenges on crystal forms and morphologies of nano-TiO2 photocatalysts in air and wastewater treatment DOI

Zhifeng Lin,

L. Z. Pei, Si Liu

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 106909 - 106909

Published: Jan. 5, 2025

Language: Английский

Citations

0
Construction of binary CuMn2O4/ZnO S-scheme heterostructure photocatalytic system for visible-light-stimulated ciprofloxacin decomposition DOI

Soad Z. Alsheheri,

Tamer M. Khedr

Materials Science in Semiconductor Processing, Journal Year: 2025, Volume and Issue: 192, P. 109423 - 109423

Published: Feb. 26, 2025

Language: Английский

Citations

0
Pharmaceutical Pollution (DCF, PARA & TC) Treatment and Remediation Via AOP-enhanced HB-TiO2 Catalyst With Antimicrobial Activity DOI

D. Pourkodee,

D. Renuka Devee,

M. K. Pavithra

et al.

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Language: Английский

Citations

0
Biosynthesized ZnO-based bimetallic nanocomposite for anticancer, antimicrobial, and photocatalytic applications DOI
Nidal M. Hussein,

Sobhan Mortazavi-Drazkola

Bioprocess and Biosystems Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Language: Английский

Citations

0
Ag2S/Zn2+-Decorated g-C3N4 Type-II Heterojunction with Wide-Spectrum Response: Construction and Photocatalytic Performance in Ciprofloxacin Degradation DOI Creative Commons
Chengyang Wang, Zheng Han,

Ruxue Ma

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(7), P. 1417 - 1417

Published: March 22, 2025

Antibiotic-based wastewaters seriously endanger human health and damage the ecological environment, photocatalytic degradation is a desirable strategy for eliminating these contaminants in water. Therefore, developing proper catalyst photodegradation of antibiotics, including ciprofloxacin (CIP), great importance. In this study, novel Ag2S/Zn2+-decorated graphitic carbon nitride (AZCN short) type-II heterojunctions are constructed through precipitation–calcination procedure. The high porosity with specific surface area 133.5 m2 g−1, as well positive synergy between Ag2S- Zn2+-decorated (abbreviated ZCN), enhance incident light harvesting, increase adsorption capacity reactant molecules, favor mass transfer promote separation transport photoinduced carriers, therefore improving efficiency CIP. Specifically, CIP (50 mL, 10 mg L−1) over 2.5% AZCN (10 mg) 18.1%, 43.1% 55.7% within 60 min irradiation using near-infrared light, visible simulated solar respectively. Moreover, it displays satisfactory recycling stability excellent universality. This research not only develops promising heterojunction photocatalyst but also offers some valuable insights water remediation.

Language: Английский

Citations

0
Magnetically enhanced Fe3O4@ZnO and Fe3O4@[email protected] composites for efficient UV and visible light photodegradation of methyl orange and ofloxacin DOI Creative Commons
Oksana Makota, Maksym Lisnichuk, Jaroslav Briančin

et al.

Chemosphere, Journal Year: 2025, Volume and Issue: 377, P. 144365 - 144365

Published: April 4, 2025

Language: Английский

Citations

0
Innovative multi-Z-scheme Bi2MoO6/BiOBr0.75/BiOI0.25/g-C3N4 quaternary composite with superior visible-light photocatalytic performance for degrading rhodamine B and furfural DOI
Hayet Lallali, Abdelhadi Bentouami,

Mohamed Cherief

et al.

Sustainable materials and technologies, Journal Year: 2025, Volume and Issue: unknown, P. e01391 - e01391

Published: April 1, 2025

Language: Английский

Citations

0
Photocatalytic degradation of reactive black 5 from synthetic and real wastewater under visible light with TiO2 coated PET photocatalysts DOI Creative Commons

Mohsen Mohammadi-Galangash,

Seyed Hossein Mousavi, Mehdi Shirzad‐Siboni

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 24, 2025

The photocatalytic removal of Reactive Black 5 (RB5) was investigated using a titanium dioxide-polyethylene terephthalate (TiO2-PET) catalyst under visible (VIS) light. sol-gel method employed for the fabrication TiO2-coated PET catalyst, which then characterized X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive (EDX), and elemental mapping (MAP) analysis. This study examined reaction kinetics one-factor-at-a-time (OFAT) approach evaluates effects various parameters, including pH (3-11), dosage (0.1-1 g L- 1), contact time (15-120 min), RB5 concentration (10-50 mg hydrogen peroxide (H2O2) content (2-100 mM), purging gases, organic compound types, ionic strength, on RB5. Under optimal conditions (pH= 3, [RB5]°= 20 1, nanocatalyst dosage= 0.5 99.99% dye removed after 120 min. Increasing 1) resulted in decrease observed rate constant (kobs) from 0.052 to 0.0017 min- while calculated electrical energy per order (EEO) increased 11.08 338.82 kWh m- 3. Furthermore, total operating cost light emitting diode (LED)/TiO2-PET process (3 USD kg- lower than that other processes, LED/TiO2 (4.73 LED/PET (40 LED (63.16 1). negatively affected by presence H2O2, O2 N2 compounds, species. Radical quenching experiments confirmed hydroxyl radicals (·OH) were dominant reactive species responsible degradation. efficiency LED/TiO2-PET (99.99%) significantly higher (63.42%). Desorption demonstrated excellent stability, maintaining catalytic activity up five sequential cycles. GC-MS analysis identified several intermediate degradation products, 1,2-benzenedicarboxylic acid, benzoic acid (2-amino-, methyl ester), benzene [(methylsulfonyl) methyl], phenol, 4-naphthalenedione, acetic propionic acid. Moreover, drinking water samples approximately 63.31%, whereas real textile wastewater samples, it reached 96.66%. Toxicity tests conducted final treated solutions no toxicity toward Daphnia magna, demonstrating effectiveness degrading both its toxic by-products.

Language: Английский

Citations

0