Efficient Degradation of Methylene Blue in Industrial Wastewater and High Cycling Stability of Nano ZnO DOI Creative Commons

Ping Liang,

Weiye Yang,

Hong-Yan Peng

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(23), P. 5584 - 5584

Published: Nov. 26, 2024

Photocatalytic degradation research has attracted significant attention in the wake of increasingly severe global challenge water pollution. In this study, nano-ZnO was synthesized through a straightforward method using zinc acetate anhydrous as precursor. The experimental results revealed that annealing conditions significantly influenced bandgap energy (Eg) ZnO, with positive correlation observed between intensity photoluminescence (PL) spectra and photocatalytic activity. Under optimal at 300 °C for 1.5 h, efficiency methylene blue (MB) exceeded 98% within 40 min ultraviolet (UV) irradiation, surpassing efficiencies reported ZnO recent studies. This high performance underscores excellent activity samples. Furthermore, after five cycles, MB remained above 90%, crystalline structure samples stable, demonstrating their exceptional structural stability during process. Additionally, study examined effects stirring different light sources on degradation, providing valuable insights future related fields.

Language: Английский

The Effectiveness of Using Potato Peel Extract as Bio-Oxidizing Agent in Discharge Printing on Naturally Dyed Fabrics DOI
Menna Ragab,

Hanan Othman,

Ahmed Hassabo

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Abstract Environmental and industrial safety regulations have increased the possibilities of utilizing enzymes in textile processing to produce environmentally friendly output. An enzyme-based process was investigated achieve bio discharge printing as an alternative conventional chemical processes. In current study, polyphenol oxidase peroxidase which extracted from potato peel (Solanum tuberosum peel) a natural source oxidizing agents were employed selectively naturally dyed cotton wool fabrics impart unusual unique effects.

Language: Английский

Citations

0
Tyrosinases: a family of copper-containing metalloenzymes DOI Creative Commons
Matthias Pretzler, Annette Rompel

ChemTexts, Journal Year: 2024, Volume and Issue: 10(4)

Published: Nov. 30, 2024

Abstract Tyrosinases (TYRs) are a family of copper-containing metalloenzymes that present in all domains life. TYRs catalyze the reactions start biosynthesis melanin, main pigment animal kingdom, and also involved formation bright colors seen on caps mushrooms petals flowers. ortho -hydroxylation oxidation phenols catechols to respective o -quinones. They only need molecular oxygen do that, products TYRs— -quinones—are highly reactive will usually react with next available nucleophile. This reactivity can be harnessed for pharmaceutical applications as well environmental food biotechnology. The majority both basic applied research utilizes “mushroom tyrosinase”, crude enzyme preparation derived from button mushroom ( Agaricus bisporus ) fruiting bodies. Access pure TYR preparations comes almost exclusively production recombinant purification these enzymes natural source is very laborious plagued by low yields. In this text an introduction into biochemistry given, followed overview structural data TYRs, current model catalytic mechanism, survey reports important metalloenzyme family, review synthesis catechols, biosensors, bioremediation, cross-linking proteins medical hydrogels melanoma treatment. Graphical

Language: Английский

Citations

3
Efficient Degradation of Methylene Blue in Industrial Wastewater and High Cycling Stability of Nano ZnO DOI Creative Commons

Ping Liang,

Weiye Yang,

Hong-Yan Peng

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(23), P. 5584 - 5584

Published: Nov. 26, 2024

Photocatalytic degradation research has attracted significant attention in the wake of increasingly severe global challenge water pollution. In this study, nano-ZnO was synthesized through a straightforward method using zinc acetate anhydrous as precursor. The experimental results revealed that annealing conditions significantly influenced bandgap energy (Eg) ZnO, with positive correlation observed between intensity photoluminescence (PL) spectra and photocatalytic activity. Under optimal at 300 °C for 1.5 h, efficiency methylene blue (MB) exceeded 98% within 40 min ultraviolet (UV) irradiation, surpassing efficiencies reported ZnO recent studies. This high performance underscores excellent activity samples. Furthermore, after five cycles, MB remained above 90%, crystalline structure samples stable, demonstrating their exceptional structural stability during process. Additionally, study examined effects stirring different light sources on degradation, providing valuable insights future related fields.

Language: Английский

Citations

2