Coupling photocatalysis and piezocatalysis in PVDF/ZnO nanofiber composites for efficient dye degradation DOI Creative Commons
Daud Selimov, Dinara Sobola, Abdulatip Shuaibov

et al.

Chimica Techno Acta, Journal Year: 2025, Volume and Issue: 12(2)

Published: April 27, 2025

The development of advanced catalytic materials for environmental applications remains a critical challenge due to the limitations conventional photocatalysis, such as low charge separation efficiency and dependence on external light sources. In this study, we present synthesis investigation electrospun polyvinylidene fluoride (PVDF) nanofibers modified with zinc oxide (ZnO) nanoparticles enhanced photocatalytic, piezocatalytic, piezophotocatalytic activity. morphology structural properties composite material were analyzed using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Raman spectroscopy, Fourier-transform infrared (FTIR) photoelectron (XPS). results show that incorporation ZnO reduces average fiber diameter by 3.3 times decreases β-phase fraction from 87.3% 71.6% nanoparticle agglomeration. performance PVDF/ZnO was evaluated in degradation methylene blue (MB) under different conditions: photocatalysis (71%), piezocatalysis (76%), piezophotocatalysis (91%) within 60 minutes. Additionally, membrane generated an open-circuit voltage 140 mV mechanical stirring, demonstrating its ability convert energy into electrical energy. These findings highlight potential nanocomposites multifunctional sustainable harvesting.

Language: Английский

Molecular Doping on Carbon Nitride for Efficient Photocatalytic Hydrogen Production DOI
Shun Lu, Hong Liu

Langmuir, Journal Year: 2024, Volume and Issue: 40(26), P. 13331 - 13338

Published: June 14, 2024

Molecular doping is an innovative approach to modify the electronic configuration of carbon nitride (CN) photocatalysts, enhancing visible light absorption and optimizing recombination electron–hole pairs in photocatalytic H2 generation. Unlike conventional heteroatom incorporation strategy, molecular offers a more effective means structure optimization conjugated framework. This Perspective studies recent advancements benzene-ring for CN, emphasizing correlation between activity. The advantages disadvantages CN are thoroughly demonstrated, underscoring importance utilizing fine-tune both physical structures enhanced efficacy. Insights provided on strategies address limitations explore new prospects field methodologies.

Language: Английский

Citations

11
Oxygen Vacancy-Mediated Microflower-like Bi5O7I for Reactive Oxygen Species Generation through Piezo-Photocoupling Effect DOI

Yongfei Cui,

Wei Liu,

Liangliang Chang

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

Photocatalytic reactive oxygen species (ROS) evolution with Bi5O7I still suffers from sluggish charge carrier dynamics and limited light absorption. Herein, abundant vacancies (OVs) were introduced into the microflower-like Bi5O7I, its ROS generation toward organic dye degradation under synergistic effect of visible ultrasound irradiation was investigated. Benefiting broadened visible-light absorption range, stronger piezoresponse, higher transport efficiency in OV-enriched (2-PEG-Bi5O7I), both photocatalytic piezocatalytic degradations improved. More importantly, piezo-photocatalytic performance greater than sum corresponding photocatalysis piezocatalysis, indicating a strong coupling effect. In addition, yield •O2– 2-PEG-Bi5O7I 1.5 times that it also 4.3 3.1 single respectively. Interestingly, no noticeable •OH detected case irradiation, while yields 3.6 5.3 μmol g–1 h–1, respectively, surpassing pristine as well. This work advances between piezocatalysis new strategy for efficient discloses positive role improving multiresponsive catalysis.

Language: Английский

Citations

2
Synthesis of Ag-loaded NaNbO3/g-C3N4 heterojunction for enhanced photocatalytic degradation of methyl orange DOI

Shuyun Huang,

Fangyutong Xiong,

Mingxue Yu

et al.

Materials Science in Semiconductor Processing, Journal Year: 2025, Volume and Issue: 192, P. 109401 - 109401

Published: Feb. 21, 2025

Language: Английский

Citations

0
Band tilt with enhanced charge separation induced by Nb-doped piezoelectric to boost photocatalysis DOI Creative Commons
Weiguang Han, Xiaodong Zhang, Hui Li

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110929 - 110929

Published: March 1, 2025

Language: Английский

Citations

0
Coupling photocatalysis and piezocatalysis in PVDF/ZnO nanofiber composites for efficient dye degradation DOI Creative Commons
Daud Selimov, Dinara Sobola, Abdulatip Shuaibov

et al.

Chimica Techno Acta, Journal Year: 2025, Volume and Issue: 12(2)

Published: April 27, 2025

The development of advanced catalytic materials for environmental applications remains a critical challenge due to the limitations conventional photocatalysis, such as low charge separation efficiency and dependence on external light sources. In this study, we present synthesis investigation electrospun polyvinylidene fluoride (PVDF) nanofibers modified with zinc oxide (ZnO) nanoparticles enhanced photocatalytic, piezocatalytic, piezophotocatalytic activity. morphology structural properties composite material were analyzed using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Raman spectroscopy, Fourier-transform infrared (FTIR) photoelectron (XPS). results show that incorporation ZnO reduces average fiber diameter by 3.3 times decreases β-phase fraction from 87.3% 71.6% nanoparticle agglomeration. performance PVDF/ZnO was evaluated in degradation methylene blue (MB) under different conditions: photocatalysis (71%), piezocatalysis (76%), piezophotocatalysis (91%) within 60 minutes. Additionally, membrane generated an open-circuit voltage 140 mV mechanical stirring, demonstrating its ability convert energy into electrical energy. These findings highlight potential nanocomposites multifunctional sustainable harvesting.

Language: Английский

Citations

0