Adsorption and activation, active site and reaction pathway of photocatalytic CO2 reduction: A review

Chemical Engineering Journal, Год журнала: 2024, Номер 481, С. 148754 - 148754

Опубликована: Янв. 14, 2024

Язык: Английский

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Clean Production of Hydrogen Peroxide: A Heterogeneous Solar‐Driven Redox Process

Advanced Energy Materials, Год журнала: 2023, Номер 13(36)

Опубликована: Авг. 6, 2023

Abstract Hydrogen peroxide is an essential chemical that attracting strong attention for energy and environmental applications. However, the struggle between growing market demand unsustainability of conventional anthraquinone method motivates exploration alternative H 2 O production processes. Although several new processes have been proposed, environmental‐friendly solar‐driven attracts most because only inputs water, oxygen, light energy. The rational design functional photo‐responsive catalysts promotes in photocatalytic photoelectrocatalytic approaches. These are, general, achieved by facilitating preferential adsorption key intermediates OOH*/OH*/O*, enhancing absorption, promoting charge separation, accelerating surface transfer with selective number involved charges. This review systematically summarizes strategies photo(electro)catalysts toward via both water oxidation oxygen reduction pathways. Though route perceived as more popular community, emerging a convincing alternative. Furthermore, prevailing hypotheses, state‐of‐the‐art catalysts, critical challenges, perspectives are discussed depth. aims to enhance comprehension this research field promote interest sustainable production.

Язык: Английский

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“One stone four birds” design atom co-sharing BiOBr/Bi2S3 S-scheme heterojunction photothermal synergistic enhanced full-spectrum photocatalytic activity

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 344, С. 123601 - 123601

Опубликована: Дек. 19, 2023

Язык: Английский

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Surface Engineered Single‐atom Systems for Energy Conversion

Advanced Materials, Год журнала: 2024, Номер 36(16)

Опубликована: Янв. 10, 2024

Abstract Single‐atom catalysts (SACs) are demonstrated to show exceptional reactivity and selectivity in catalytic reactions by effectively utilizing metal species, making them a favorable choice among the different active materials for energy conversion. However, SACs still early stages of conversion, problems like agglomeration low conversion efficiency hampering their practical applications. Substantial research focus on support modifications, which vital SAC stability due intimate relationship between atoms support. In this review, category supports variety surface engineering strategies employed SA systems summarized, including site (heteroatom doping, vacancy introducing, groups grafting, coordination tunning) structure (size/morphology control, cocatalyst deposition, facet engineering, crystallinity control). Also, merits single‐atom systematically introduced. Highlights comprehensive summary discussions utilization surface‐engineered diversified applications photocatalysis, electrocatalysis, thermocatalysis, devices. At end potential obstacles using field discussed. This review aims guide rational design manipulation target‐specific capitalizing characteristic benefits engineering.

Язык: Английский

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Bifunctional g-C3N4 nanospheres/CdZnS QDs S-scheme photocatalyst with boosted H2 evolution and furfural synthesis mechanism

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 358, С. 124459 - 124459

Опубликована: Июль 29, 2024

Язык: Английский

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A review of chalcogenide-based perovskites as the next novel materials: Solar cell and optoelectronic applications, catalysis and future perspectives

Next Nanotechnology, Год журнала: 2024, Номер 7, С. 100102 - 100102

Опубликована: Сен. 11, 2024

Язык: Английский

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TiO₂ Quantum Dots/Fe₃S₄ Heterojunction Nanocomposites for Efficient Ammonia Production through Nitrogen Fixation upon Simulated Sunlight

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(2), С. 2200 - 2213

Опубликована: Янв. 4, 2024

Using semiconductor photocatalysts instead of the traditional Haber–Bosch procedure to produce ammonia is a promising strategy save energy and prevent environmental pollution. Therefore, finding suitable photocatalyst with high efficiency stability has become one big challenges research communities in field heterogeneous photocatalysis. Herein, S-scheme TiO2 quantum dots (QDs)/Fe3S4 heterojunction were synthesized through hydrothermal route. The nitrogen photofixation measurements exhibited that QDs/Fe3S4 have excellent activities, where generation NH3 by optimized nanocomposite reached 16,624 μmol L–1 g–1 upon simulated sunlight. This amount was almost 19.9, 6.30, 2.85 times as those TiO2, QDs, Fe3S4 photocatalysts, respectively. promoted photocatalytic ability devoted outstanding visible-light absorption, accelerated segregation photoinduced electron–hole pairs, enhanced surface area. key purpose this rational design based on QDs one-pot facile fabrication procedure, which exhibits admirable performance fixation. Considering advantages binary it anticipated could be utilized solar conversion processes.

Язык: Английский

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Heavy‐Metal‐Free Colloidal Quantum Dots: Progress and Opportunities in Solar Technologies

Advanced Materials, Год журнала: 2024, Номер 36(33)

Опубликована: Июнь 23, 2024

Colloidal quantum dots (QDs) hold great promise as building blocks in solar technologies owing to their remarkable photostability and adjustable properties through the rationale involving size, atomic composition of core shell, shapes, surface states. However, most high-performing QDs conversion contain hazardous metal elements, including Cd Pb, posing significant environmental risks. Here, a comprehensive review heavy-metal-free colloidal for technologies, photovoltaic (PV) devices, solar-to-chemical fuel conversion, luminescent concentrators (LSCs), is presented. Emerging synthetic strategies optimize optical by tuning energy band structure manipulating charge dynamics within at QDs/charge acceptors interfaces, are analyzed. A comparative analysis different methods provided, structure-property relationships these materials discussed, they correlated with performance devices. This work concluded an outlook on challenges opportunities future work, machine learning-based design, sustainable synthesis, new surface/interface engineering.

Язык: Английский

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Confined Space Dual‐Type Quantum Dots for High‐Rate Electrochemical Energy Storage

Advanced Materials, Год журнала: 2024, Номер 36(29)

Опубликована: Май 15, 2024

Owing to the quantum size effect and high redox activity, dots (QDs) play very essential roles toward electrochemical energy storage. However, it is difficult obtain different types uniformly dispersed high-active QDs in a stable conductive microenvironment, because prepared by traditional methods are mostly dissolved solution or loaded on surface of other semiconductors. Herein, dual-type semiconductor (Co

Язык: Английский

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Ultrathin 2D Alloyed Cu−Ga−Zn−S Curved Nanobelts for Boosting Visible‐Light Photocatalytic Hydrogen Evolution

Advanced Functional Materials, Год журнала: 2024, Номер 34(45)

Опубликована: Май 28, 2024

Abstract 2D semiconductor nanomaterials have received significant attention as photocatalysts for solar‐to‐hydrogen conversion due to their robust light absorption capacity, large specific surface area, and superior electron transport characteristics. Nevertheless, it is challenging develop quaternary copper‐based sulfides (QCSs) with functional integration of conducive structural features photocatalysis from multiple elements intricate control conditions. Herein, ultrathin alloyed Cu−Ga−Zn−S (CGZS) curved nanobelts (NBs) are fabricated by using a facile one‐pot colloidal method. Subsequently, the derived Cu 31 S 16 ‐CGZS Janus heterostructures designed increasing concentrations. The formation mechanism alloys systematically investigated. Without cocatalysts, CGZS NBs demonstrated photocatalytic activities 1264.2 µmol g −1 h compared heterostructured −CGZS (463.1 ) under visible (> 400 nm). Experimental theoretical results unveiled that improved can be attributed enhanced charge–carrier separation efficiency resulting high crystallinity structure, abundant active sites high‐active (0001) crystal facet lowest reaction Gibbs energy, work function, metal‐like properties. This offers new insights into QCSs visible‐light performance.

Язык: Английский

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