Published: Jan. 1, 2024
Language: Английский
Published: Jan. 1, 2024
Language: Английский
Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107548 - 107548
Published: March 23, 2025
Language: Английский
Citations
0Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116344 - 116344
Published: March 1, 2025
Language: Английский
Citations
0Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116362 - 116362
Published: March 1, 2025
Language: Английский
Citations
0Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 169, P. 113120 - 113120
Published: Sept. 6, 2024
Language: Английский
Citations
3Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 176589 - 176589
Published: Sept. 1, 2024
Language: Английский
Citations
3Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1006, P. 176374 - 176374
Published: Sept. 6, 2024
Language: Английский
Citations
2Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: Feb. 29, 2024
Abstract This study presents findings that suggest it is possible to fine-tune and enhance the optical properties of anthraquinone (AQ) its photocatalytic performance in degradation rhodamine B (RhB) at molecular level through varying keleton substituents. Specifically, electron-withdrawing substituent demonstrates a more pronounced improvement effect compared electron-donating substituent. Among them, 2-carboxyanthraquinone (AQ-COOH) demonstrated most exceptional activity, affording 99.9% rate under visible light irradiation for 30 min. It noteworthy hydrochloric acid solution with concentration 0.5 mmol·L − 1 has considerable promoting impact on photodegradation RhB catalyzed by AQ-COOH, total can be accomplished 15 In addition, AQ-COOH also good applicability tetracycline, methylene blue, methyl orange. As recyclable solid catalyst, catalytic activity remained mostly unchanged after being used five times. Additionally, did not undergo when exposed light, indicating excellent stability process catalyzing degradation. According quenching experiments EPR spectrum characterizations, photo-generated active species oxygen vacancies (h + ), photogenerated electrons (e superoxide free radicals (O 2 •− singlet ( O ) hydroxyl radical (•OH) are involved hypothesized photo-catalytic mechanism.
Language: Английский
Citations
0ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(25)
Published: June 27, 2024
Abstract This study presents findings that suggest it is possible to fine‐tune and enhance the optical properties of anthraquinone (AQ) its photocatalytic performance in degradation rhodamine B (RhB) at molecular level through varying keleton substituents. Specifically, electron‐withdrawing substituent demonstrates a more pronounced improvement effect compared electron‐donating substituent. Out several compounds, 2‐carboxyanthraquinone (AQ−COOH) exhibits highest activity. due ionization water, generating H + ions destruction RhB photodegradation. After 30 min exposure visible light, rate reaches an impressive 99.9 %. It noteworthy hydrochloric acid solution with concentration 0.5 mmol ⋅ L −1 has considerable promoting impact on photodegradation catalyzed by AQ−COOH, total can be accomplished 15 min. In addition, AQ−COOH also good applicability for tetracycline, methylene blue, methyl orange. As recyclable solid catalyst, catalytic activity remained mostly unchanged after being used five times. Additionally, did not undergo when exposed indicating excellent stability process catalyzing degradation. According quenching experiments EPR spectrum characterizations, photo‐generated active species oxygen vacancies (h ), photogenerated electrons (e − superoxide free radicals (O 2 singlet ( 1 O ) hydroxyl radical (•OH) are involved hypothesized photo‐catalytic mechanism.
Language: Английский
Citations
0Published: Jan. 1, 2024
Language: Английский
Citations
0Catalysts, Journal Year: 2024, Volume and Issue: 14(9), P. 591 - 591
Published: Sept. 3, 2024
Textile wastewater containing dyes poses significant environmental hazards. Advanced oxidative processes, especially the heterogeneous photo-Fenton process, are effective in degrading a wide range of contaminants due to high conversion rates and ease catalyst recovery. This study evaluates photodegradation azo Acid Red 18 (AR18), 66 (AR66), Orange 2 (OR2) using magnetite as catalyst. The magnetic was synthesized via hydrothermal process at 150 °C. Experiments were conducted room temperature, investigating effect dosage, pH, initial concentrations H2O2 AR18 dye. Kinetic thermodynamic studies performed 25, 40, 60 °C for three (AR18, AR66, OR2) dye structures on degradation efficiency investigated. At 25 0.33 mmolL−1 pH 3.0, 1.4 gL−1 mgL−1 under UV radiation 16.7 mWcm−2, showed 62.3% AR18, 79.6% 83.8% OR2 180 min reaction. oxidation these conditions is spontaneous endothermic. pseudo-first-order kinetic constants indicated strong temperature dependence with an order reactivity type > AR66 which associated molecular size, steric hindrance, aromatic conjugation, electrostatic repulsion, nature acid–base interactions catalytic surface.
Language: Английский
Citations
0