Materials Horizons, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
This review summarizes recent advances in the modification strategies of 2D materials for photocatalytic H 2 O production and its situ applications. Additionally, existing challenges this field potential solutions are discussed.
Язык: Английский
Advanced Functional Materials, Год журнала: 2024, Номер 34(44)
Опубликована: Май 16, 2024
Abstract The burgeoning field of conjugated microporous polymers (CMPs) has generated widespread interest due to their potential as photocatalysts for hydrogen production from water. Nevertheless, photocatalytic performance is sometimes hindered by inadequate charge separation and transfer, coupled with rapid recombination. Herein, a strategy enhance via the customization π ‐bridges through modulation heteroatoms in series donor‐ ‐acceptor (D‐ ‐A) CMPs proposed. This affords optimized energy levels improved thus boosting efficiency. Among various heteroatom substitutions, S‐doped CMP (10 mg) demonstrates highest evolution rate 203 µmol h −1 (AQY 450nm = 7.4%) under visible light irradiation. Subsequent experimental analysis reveals its superior can be largely related minimized exciton binding energy, facilitated transfer efficiency, impeded recombination among these heteroatom‐doped D‐ ‐A CMPs. research paves way rational design modification organic semiconductors advanced solar‐driven photocatalysis promoting transfer.
Язык: Английский
Процитировано
14
ACS Energy Letters, Год журнала: 2024, Номер 9(5), С. 2092 - 2100
Опубликована: Апрель 24, 2024
Methods of reducing nanofluids' internal resistance by mixing conductive nanomaterials will negatively affect the nanochannel structures and ion transmissions. Herein, a layered-structured nanofluidic membrane that achieves transport in cellulose nanochannels realizes electron external polyaniline network is developed. Results show ionic conductivity resistivity layered at low salt concentrations are 1.57 times higher 0.99 lower than those blend membrane, demonstrating positive contribution decoupled electronic pathways. Furthermore, attained an enhanced output power density 11.7 W m–2 maintained performance up to 10.9 after 16 days operation under neutral 50-fold salinity concentration gradient, which commercial system (5.0 m–2). Overall, this research expands materials for osmotic energy–harvesting systems based on design decoupling paths biomass materials.
Язык: Английский
Процитировано
13
Angewandte Chemie, Год журнала: 2024, Номер 136(21)
Опубликована: Март 16, 2024
Abstract The artificial photosynthesis of H 2 O from water and oxygen using semiconductor photocatalysts is attracting increasing levels attention owing to its green, environmentally friendly, energy‐saving characteristics. Although covalent organic frameworks (COFs) are promising materials for promoting photocatalytic production their structural functional diversity, they typically suffer low charge‐generation ‐transfer efficiencies as well rapid charge recombination, which restricts use catalysts production. Herein, we report a strategy anchoring vinyl moieties COF skeleton facilitate separation migration, thereby generation. This vinyl‐group‐bearing photocatalyst exhibits ‐production rate 84.5 μmol h −1 (per 10 mg), ten‐times higher than that the analog devoid functionality superior most reported photocatalysts. Both experimental theoretical studies provide deep insight into origin improved performance. These findings expected rational design modification semiconductors in applications.
Язык: Английский
Процитировано
11
Journal of Colloid and Interface Science, Год журнала: 2024, Номер 659, С. 984 - 992
Опубликована: Янв. 9, 2024
Язык: Английский
Процитировано
8
Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(6), С. 111243 - 111243
Опубликована: Окт. 17, 2023
Язык: Английский
Процитировано
20
ACS Catalysis, Год журнала: 2024, Номер unknown, С. 17654 - 17663
Опубликована: Ноя. 15, 2024
The photosynthesis of hydrogen peroxide (H2O2) from pure water and oxygen using metal-free photocatalysts offers a renewable approach to convert solar energy storable chemical energy. However, the efficiency H2O2 is often hindered by rapid recombination photogenerated charge carriers. Herein, we present an elegantly designed covalent triazine framework (CTF) photocatalyst, denoted as Ace-asy-CTF, with stepwise electron transfer pathway for highly efficient H2O2. Notably, Ace-asy-CTF possesses localized excited-state distribution that created weakly conjugated acetenyl units in asymmetric frameworks, revealed transient spectroscopies further supported theoretical calculations. Meanwhile, introduced also serve active sites reduction reaction (ORR). simultaneously enhanced two-step 2e– ORR result excellent yield 2594 μmol g–1 h–1, directly produced without requiring any sacrificial reagents. This work paves way development next-generation catalysts, providing feasible benchmark stable
Язык: Английский
Процитировано
8
Energy Advances, Год журнала: 2024, Номер 3(4), С. 712 - 740
Опубликована: Янв. 1, 2024
Porous covalent organic frameworks towards photocatalytic ROS-mediated hydrogen peroxide production and substances degradation.
Язык: Английский
Процитировано
7
Science China Materials, Год журнала: 2024, Номер 67(6), С. 1765 - 1779
Опубликована: Май 15, 2024
Язык: Английский
Процитировано
6
Chemical Engineering Journal, Год журнала: 2024, Номер 496, С. 153493 - 153493
Опубликована: Июнь 27, 2024
Язык: Английский
Процитировано
6
Chinese Chemical Letters, Год журнала: 2024, Номер 35(12), С. 110125 - 110125
Опубликована: Июнь 18, 2024
Язык: Английский
Процитировано
5