Revealing the Mechanism of Exciton Spontaneous Separation at Room Temperature for Efficient Photocatalytic Hydrogen Peroxide Synthesis DOI Creative Commons
Pan Jiang, Yuyan Huang,

Xiangqiong Jiang

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

Abstract The photocatalytic synthesis of hydrogen peroxide (H 2 O ) at room temperature has garnered significant attention as an environmentally friendly alternative to traditional anthraquinone oxidation processes. However, the low exciton dissociation efficiency often hinders performance. In this study, it is demonstrated that tuning substitution sites electron donors in Donor‐Acceptor (D‐A) conjugated polymers can significantly enhance by reducing activation energy, which facilitates spontaneous separation excitons temperature. For comparison, materials with energies ≈89 meV exhibit a production rate 2692 µmol·g −1 ·h . contrast, main material developed work, O‐PTAQ, demonstrates substantially lower energy 22 meV, resulting 4989 under ambient conditions, outperforming most reported organic semiconductors. This enhancement attributed increased delocalization donors, lowers promote efficient separation. findings highlight critical role molecular‐level structural enhancing dissociation, providing promising strategy for development high‐efficiency photocatalysts sustainable H production.

Language: Английский

Rational Design of Covalent Organic Frameworks for Photocatalytic Hydrogen Peroxide Production DOI Open Access
Yang Ou, Yifan Zhang, Wen Luo

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

Abstract Photocatalytic production of hydrogen peroxide (H 2 O ) represents a significant approach to achieving sustainable energy generation through solar energy, addressing both shortages and environmental pollution. Among various photocatalytic materials, covalent organic frameworks (COFs) have gained widespread attention in‐depth research due their unique advantages, including high porosity, predesignability, atomic‐level tunability. In recent years, progress has been made in the development, performance enhancement, mechanistic understanding COF‐based photocatalysts. This review focuses on latest advancements H using COFs, particularly emphasizing rational design COF structures regulate catalytic exploring fundamental processes involved photocatalysis. Based current achievements this field, paper also discusses existing challenges future opportunities, aiming provide reference for application COFs production.

Language: Английский

Citations

10
Rational construction of porous aromatic frameworks for photo-enhanced gold recovery from e-waste DOI

Shun-Hao Zeng,

Tao Wang, Lang Ding

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132130 - 132130

Published: Feb. 1, 2025

Language: Английский

Citations

1
Recent advancements and perspectives in conductive hydrogel-based flexible all-in-one supercapacitors DOI
Hui Fang Song, Cheng Huang, B. Zheng

et al.

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 641, P. 236902 - 236902

Published: April 2, 2025

Language: Английский

Citations

1
Self‐Assembled Covalent Triazine Frameworks Derived N, S Co‐Doped Carbon Nanoholes with Facilitating Ions Transportation Toward Remarkably Enhanced Oxygen Reduction Reaction and for Zinc–Air Batteries DOI Open Access
Xia Chen,

Jingyu Guan,

Yong Zheng

et al.

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

Published: Dec. 15, 2024

3D assembled carbon materials, featuring unique hierarchical porosity and interconnected channels, are essential for the advancement of emerging zinc-air batteries (ZABs). In this study, nitrogen (N) sulfur (S) co-doped nanoholes (N/S-CNHs) synthesized through a straightforward procedure involving self-assembly followed by carbonization. This process utilizes hybrid self-assembled covalent triazine framework sodium lignosulphonate (CTF@LS) as multifunctional precursor. The resulting N/S-CNHs exhibit distinctive microstructure composed interwoven nanoclusters, which facilitates efficient ion electron transport during electrocatalytic process. incorporation N S atoms intriguingly alters wetting properties catalyst microenvironment, thereby significantly facilitating transfer key intermediates their interaction with electrolyte. Consequently, optimized N/S-CNH-900 demonstrates remarkable activity ORR (E

Language: Английский

Citations

4
Composite Graphene for the Dimension- and Pore-Size-Mediated Stem Cell Differentiation to Bone Regenerative Medicine DOI
Liuya Wei,

Peilei Chen,

Lin Shi

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

As one of the most promising means to repair diseased tissues, stem cell therapy with immense potential differentiate into mature specialized cells has been rapidly developed. However, clinical application stem-cell-dominated regenerative medicine was heavily hindered by loss pluripotency during long-term in vitro expansion. Here, a composite three-dimensional (3D) graphene-based biomaterial, denoted as GO-Por-CMP@CaP, hierarchical pore structure (micro- macropore), developed guide directional differentiation human umbilical cord MSCs (hucMSCs) osteoblasts. GO-Por-CMP@CaP could act high-efficiency living material without "dead space", effectively regulating cellular response. The 3D topological generated via two-step modification on two-dimensional graphene mimic natural microenvironment cells, enhancing attachment, which is not only conducive for proliferation but also beneficial osteogenic differentiation. Meanwhile, wide existence interconnected macropores favorable bone ingrowth, capillary formation, well nutrients transportation. Furthermore, concurrent micro- and mesopores significantly promoted extracellular matrix (ECM) adsorption, ensured leading multiscale osteointegration. Both vivo assay demonstrated above three factors collaborated mutually nanosized calcium phosphate (CaP, chemical similarities inorganic components bone), provided abundant adhesive sites adequately induce absence any soluble growth factors. Proteomic analysis experiments confirmed that hucMSCs osteoblasts affecting PI3K-Akt signaling pathway through up-regulation SPP1 protein. Our study offers pure material-based behavior engineering dimension porosity material, provides insights design development substitutes materials.

Language: Английский

Citations

0
Enhancing photocatalyst stability for hydrogen peroxide synthesis through promoting oxygen-centered organic radical formation DOI
Pan Jiang,

Chen Zuo-ming,

Huijie Yan

et al.

Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Language: Английский

Citations

0
Coupling Ionic Polarization, Electron Sponge Effect by One‐Pot Hypercrosslinking, Pyridiniumnation of Photosensitizer‐Based Porous Organic Polymers for Enhancing Advanced Oxidation Process DOI

Wuzi Zhao,

Lixuan Kan,

Danfeng Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Abstract Porous organic polymers (POPs) are emerging as up‐and‐coming photocatalysts for energy conversion, and environmental treatment. However, attention to simultaneously improving photoinduced charge separation, transfer, interfacial reaction is markedly lagged. Herein, the strategy of coupling ionic polarization, electron sponge effect enhancing built‐in electric field (BIEF), surface mass transfer process POPs proposed, which can be realized by a one‐pot post‐pyridiniumnation, Friedel‐Craft reaction. This method endows polarization elevating BIEF boosting separation/migration. The pyridiniumnation not only induces allow shallow trap free electrons but also effectively reduces oxygen adsorption energy, pertinent intermediates, thus leading stronger in 2.73‐fold neutral polymer strengthened O 2 activation. Additionally, photothermal performance with up 15 °C increment contributes enhancement photocatalysis. Consequently, iBPyP‐33 exhibits an unprecedentedly efficient photodegradation 100 ppm bisphenol A (BPA) just 20 min, photosynthesis H rate 3070 µmol g −1 h air, 6583 aided sodium ethylenediaminetetraacetic acid. study provides fresh, valuable insights into design high efficiency.

Language: Английский

Citations

0
Crystal OH boosting piezocatalytic H2O2 synthesis by Bi3O(PO4)2OH from pure water for atrazine degradation DOI

Qintian Peng,

Hailin Tian,

Houle Zhou

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132786 - 132786

Published: April 1, 2025

Language: Английский

Citations

0
Revealing the Mechanism of Exciton Spontaneous Separation at Room Temperature for Efficient Photocatalytic Hydrogen Peroxide Synthesis DOI Creative Commons
Pan Jiang, Yuyan Huang,

Xiangqiong Jiang

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

Abstract The photocatalytic synthesis of hydrogen peroxide (H 2 O ) at room temperature has garnered significant attention as an environmentally friendly alternative to traditional anthraquinone oxidation processes. However, the low exciton dissociation efficiency often hinders performance. In this study, it is demonstrated that tuning substitution sites electron donors in Donor‐Acceptor (D‐A) conjugated polymers can significantly enhance by reducing activation energy, which facilitates spontaneous separation excitons temperature. For comparison, materials with energies ≈89 meV exhibit a production rate 2692 µmol·g −1 ·h . contrast, main material developed work, O‐PTAQ, demonstrates substantially lower energy 22 meV, resulting 4989 under ambient conditions, outperforming most reported organic semiconductors. This enhancement attributed increased delocalization donors, lowers promote efficient separation. findings highlight critical role molecular‐level structural enhancing dissociation, providing promising strategy for development high‐efficiency photocatalysts sustainable H production.

Language: Английский

Citations

0