Fabrication of an Ultralight Ni-MOF-rGO Aerogel with Both Dielectric and Magnetic Performances for Enhanced Microwave Absorption: Microspheres with Hollow Structure Grow onto the GO Nanosheets

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(7), P. 9685 - 9696

Published: Feb. 9, 2023

An ultralight Ni-MOF-rGO aerogel which possess the merits of not only broad bandwidth and strong absorption but also lightweight thin matching thickness is fabricated through a hydrothermal treatment, freeze-drying, annealing procedure. The Ni@C microspheres are dispersed randomly evenly on graphene oxide (GO) nanosheets, can be proved SEM TEM results. electromagnetic parameters composite adjusted by changing mass ratio MOF GO to endow material with both good impedance superior wave performances. Consequently, resulting shows outstanding microwave performance, achieves (−51.19 dB) effective (6.32 GHz) 1.9 mm while filling content 2 wt %. In addition, multiple loss mechanisms illustrated, including conduction loss, dipolar polarization, interfacial magnetic resonance, eddy current loss. word, extraordinary performance ascribed synergistic effects unique layered structure hollow core–shell microsphere. This work demonstrates that excellent promising strategy for application.

Language: Английский

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Cu-doped mesoporous TiO2 photocatalyst for efficient degradation of organic dye via visible light photocatalysis

Chemosphere, Journal Year: 2023, Volume and Issue: 339, P. 139583 - 139583

Published: July 20, 2023

Language: Английский

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TiO2-based photocatalysts from type-II to S-scheme heterojunction and their applications

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 675, P. 150 - 191

Published: June 27, 2024

Language: Английский

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Advances in Defect Engineering of Metal Oxides for Photocatalytic CO₂ Reduction

Small, Journal Year: 2024, Volume and Issue: unknown

Published: April 30, 2024

Abstract Photocatalytic CO 2 reduction technology, capable of converting low‐density solar energy into high‐density chemical energy, stands as a promising approach to alleviate the crisis and achieve carbon neutrality. Semiconductor metal oxides, characterized by their abundant reserves, good stability, easily tunable structures, have found extensive applications in field photocatalysis. However, wide bandgap inherent oxides contributes poor efficiency photocatalytic reduction. Defect engineering presents an effective strategy address these challenges. This paper reviews research progress defect enhance performance summarizing classifications, preparation methods, characterization techniques. The focus is on engineering, represented vacancies doping, for improving oxide photocatalysts. includes advancements expanding photoresponse range, enhancing photogenerated charge separation, promoting molecule activation. Finally, provides summary current issues challenges faced along with prospective outlook future development technology.

Language: Английский

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Ionic liquids: The emerging “cardiotonic” for photocatalytic materials

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 529, P. 216461 - 216461

Published: Jan. 24, 2025

Language: Английский

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N-doped sites modulate Ag/TiO2 interaction for improved photocatalytic degradation of tetracycline

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 573, P. 114815 - 114815

Published: Jan. 5, 2025

Language: Английский

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Carbon-doped mesoporous TiO2-immobilized Ni nanoparticles: Oxygen defect engineering enhances hydrogen production

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 339, P. 123153 - 123153

Published: Aug. 6, 2023

Language: Английский

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Highly visible-light-responsive nanoporous nitrogen-doped TiO2 (N-TiO2) photocatalysts produced by underwater plasma technology for environmental and biomedical applications

Applied Surface Science, Journal Year: 2023, Volume and Issue: 638, P. 158123 - 158123

Published: July 27, 2023

We suggest an easy one-step underwater plasma method to generate nanoporous N-doped TiO2(N-TiO2) photocatalysts with high reactivity in the visible light range. The extreme energy input of this technology allowed synthesis, crystallization, doping, and porosity TiO2 by inducing continuous reaction highly energetic atomic molecular species within a few minutes. produced N-TiO2 demonstrated anatase-brookite polycrystalline structure substitutionally doped N atoms. doping led narrow bandgap, effective charge-carrier separation, better absorbing ability region. Accordingly, showed efficient photocatalytic activities for methylene blue(MB), rhodamine B(Rh B), tetracycline(TC) under solar conditions, up approximately 4.5 times higher than that commercial TiO2. Furthermore, superior biocompatibility (94.5%) water purified proved feasibility these materials practical use. Moreover, excellent antibacterial against gram-negative Escherichia coli(E. coli) gram-positive Staphylococcus aureus(S. aureus), which extends applicability biomedical applications sludge purification. This study presents one most facile fast methods production visible-light-responsive environmental applications.

Language: Английский

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Doped nanomaterials: Application in hydrogen production via photocatalytic water splitting

Fuel, Journal Year: 2023, Volume and Issue: 348, P. 128528 - 128528

Published: April 28, 2023

Language: Английский

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1D/1D W18O49/Cd0.9Zn0.1S S-scheme heterojunction with spatial charge separation for high-yield photocatalytic H2 evolution

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 637, P. 465 - 476

Published: Jan. 26, 2023

Language: Английский

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