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UV-LED/P25-based photocatalysis for effective degradation of isothiazolone biocide

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1379-x

Abstract:

• UV-LED with shorter wavelength was beneficial for photocatalytic degradation.

Keywords： Degradation     Photocatalytic     LED     CMIT     P25    

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Photocatalysis: from solar light to hydrogen energy

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 565-567 doi: 10.1007/s11708-021-0784-6

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Metal-organic frameworks for CO

Lei ZHANG, Junqing ZHANG

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 221-250 doi: 10.1007/s11708-019-0629-8

Abstract: Metal-organic frameworks (MOFs) have attracted much attention because of their large surface areas, tunable structures, and potential applications in many areas. In recent years, MOFs have shown much promise in CO photoreduction. This review summarized recent research progresses in MOF-based photocatalysts for photocatalytic reduction of CO . Besides, it discussed strategies in rational design of MOF-based photocatalysts (functionalized pristine MOFs, MOF-photosensitizer, MOF- semiconductor, MOF-metal, and MOF-carbon materials composites) with enhanced performance on CO reduction. Moreover, it explored challenges and outlook on using MOF-based photocatalysts for CO reduction.

Keywords： metal-organic frameworks (MOFs)     photocatalysis     CO2 photoreduction     composite    

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Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 667-677 doi: 10.1007/s11708-021-0767-7

Abstract: Owing to the outstanding characteristics of tailorable electronic and optical properties, semiconducting polymers have attracted considerable attention in recent years. Among them, organic polymer dots process large breadth of potential synthetic diversity are the representative of photocatalysts for hydrogen production, which presents both an opportunity and a challenge. In this mini-review, first, the organic polymer photocatalysts were introduced. Then, recent reports on polymer dots which showed a superior photocatalytic activity and a robust stability under visible-light irradiation, for hydrogen production were summarized. Finally, challenges and outlook on using organic polymer dots-based photocatalysts from hydrogen production were discussed.

Keywords： polymer dots (Pdots)     photocatalysis     hydrogen production    

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Efficient flower-like ZnSe/CuZnS photocatalyst for hydrogen production application

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1301-1310 doi: 10.1007/s11705-022-2295-3

Abstract: Photocatalytic hydrogen production utilizing abundant solar energy to produce high-calorie, clean, and pollution-free hydrogen is an important approach to solving environmental and resource problems. In this work, a high-efficiency flower-like ZnSe/Cu0.08Zn0.92S photocatalyst was constructed through element doping and the formation of a Z-scheme heterojunction. The synergistic effect of Cu doping and the built-in electric field in the heterojunction enhanced light absorption and utilization by the ZnSe/Cu0.08Zn0.92S microflowers, accelerated the separation and transfer of photogenerated electrons and effectively inhibited electron–hole recombination. Thus the photocatalytic hydrogen production ability of the ZnSe/Cu0.08Zn0.92S microflowers was increased significantly. The highly stable ZnSe/Cu0.08Zn0.92S microflowers could provide excellent catalysis of photocatalytic hydrogen production.

Keywords： photocatalysis     Cu0.08Zn0.92S     ZnSe     hydrogen production    

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Layered alkali titanates (ATiO): possible uses for energy/environment issues

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 631-655 doi: 10.1007/s11708-021-0776-6

Abstract: Uses of layered alkali titanates (A2TinO2n+1; Na2Ti3O7, K2Ti4O9, and Cs2Ti5O11) for energy and environmental issues are summarized. Layered alkali titanates of various structural types and compositions are regarded as a class of nanostructured materials based on titanium oxide frameworks. If compared with commonly known titanium dioxides (anatase and rutile), materials design based on layered alkali titanates is quite versatile due to the unique structure (nanosheet) and morphological characters (anisotropic particle shape). Recent development of various synthetic methods (solid-state reaction, flux method, and hydrothermal reaction) for controlling the particle shape and size of layered alkali titanates are discussed. The ion exchange ability of layered alkali titanate is used for the collection of metal ions from water as well as a way of their functionalization. These possible materials design made layered alkali titanates promising for energy (including catalysis, photocatalysts, and battery) and environmental (metal ion concentration from aqueous environments) applications.

Keywords： layered alkali titanates     photocatalysis     hydrogen evdution     metal ions collection    

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Recent advances of hydrogen production through particulate semiconductor photocatalytic overall water splitting

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 49-63 doi: 10.1007/s11708-022-0817-9

Abstract: Solar energy-driven photocatalytic water splitting has been investigated for decades to produce clean and renewable green hydrogen. In this paper, the cutting-edge research within the overall water splitting system is summarized from the one-step photocatalytic overall water splitting (POWS) system to the two-step system and the cocatalysts research in this field. In addition, the photocatalytic reaction engineering study is also reviewed which is crucial for future scale-up. This mini-review provides a picture of survey of recent progress of relevant overall water splitting system, with particular attention paid to material system and mechanistic breakthroughs, and highlights the challenge and opportunity of the current system.

Keywords： photocatalysis     overall water splitting     hydrogen    

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Improving hole transfer of boron nitride quantum dots modified PDI for efficient photodegradation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1718-1727 doi: 10.1007/s11705-023-2319-7

Abstract: photocatalytic design is capable of expanding organic semiconductors’ potential for their applications in photocatalysis

Keywords： PDI     boron nitride     quantum dots     photocatalysis     hole transfer    

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Z-scheme CdS/WO on a carbon cloth enabling effective hydrogen evolution

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 678-686 doi: 10.1007/s11708-021-0768-6

Abstract: Photocatalytic water splitting for hydrogen (H2) generation is a potential strategy to solve the problem of energy crisis and environmental deterioration. However, powder-like photocatalysts are difficult to recycle, and the agglomeration of particles would affect the photocatalytic activity. Herein, a direct Z-scheme CdS/WO3 composite photocatalyst was fabricated based on carbon cloth through a two-step process. With the support of carbon cloth, photocatalysts tend to grow uniformly for further applications. The experimental results showed that the H2 yield of adding one piece of CdS/WO3 composite material was 17.28 μmol/h, which was 5.5 times as compared to that of pure CdS-loaded carbon cloth material. A cycle experiment was conducted to verify the stability of the as-prepared material and the result demonstrated that the H2 generation performance of CdS/WO3 decreased slightly after 3 cycles. This work provides new ideas for the development of recyclable photocatalysts and has a positive significance for practical applications.

Keywords： photocatalysis     CdS/WO3     carbon cloth     Z-scheme     hydrogen evolution    

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Research progress of defect-engineered UiO-66(Zr) MOFs for photocatalytic hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 656-666 doi: 10.1007/s11708-021-0765-9

Abstract: In recent years, defect-engineered Zr-based UiO-66 metal-organic frameworks (UiO-66(Zr) metal-organic frameworks (MOFs)) have shown huge advantages in catalytic, functional materials, adsorption, and other fields due to their large surface areas, well-ordered porous structures, and flexible tailorability. It is extremely challenging to introduce defect sites in the synthesis of MOFs to regulate the physicochemical properties of materials such as (energy band structure, pore structure, etc.) to obtain an excellent performance. This paper reviews the recent research results of synthesis methods, characterization technologies, and application fields of defect-engineered UiO-66(Zr) MOFs materials in order to provide new insights to synthesize high-performance UiO-66(Zr) MOFs materials and promote the development of UiO-66(Zr) in various fields.

Keywords： defect engineering     metal-organic frameworks     UiO-66     photocatalysis    

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Recent progress in photocatalytic NAD(P)H regeneration for photocatalytic-enzymatic-coupling system

Frontiers of Chemical Science and Engineering 2024, Volume 18, Issue 4, doi: 10.1007/s11705-024-2398-0

Abstract: The enzymatic redox reactions in natural photosynthesis rely much on the participation of cofactors, with reduced nicotinamide adenine dinucleotide/nicotinamide adenine dinucleotide phosphate (NADH/NADPH) or their oxidized form (NAD+/NADP+) as an important redox power. The photocatalytic regeneration of expensive and unstable NADH/NADPH in vitro is an important process in enzymatic reduction and has attracted much research attention. Though different types of photocatalysts have been developed for photocatalytic NADH/NADPH regeneration, the efficiency is still relatively low. To elucidate the key factors affecting the performance of photocatalytic NADH/NADPH regeneration is helpful to rationally design the photocatalyst and improve the photocatalytic efficiency. In this paper, we overview the recent progress in photocatalytic NADH/NADPH regeneration with the focus on the strategies to improve the visible light adsorption, the charge separation and migration efficiency, as well as the surface reaction, which jointly determine the overall photocatalytic regeneration efficiency. The potential development of photocatalytic NADH/NADPH regeneration and photocatalytic-enzymatic-coupling system is prospected finally.

Keywords： photocatalytic-enzymatic coupling     NAD(P)H regeneration     photocatalysis     efficiency    

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Photo-induced surface frustrated Lewis pairs for promoted photocatalytic decomposition of perfluorooctanoic acid

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 1, doi: 10.1007/s11783-023-1603-6

Abstract:

● Terminal carboxylate group activation is PFOA degradation’s rate-limiting step.

Keywords： Heterogeneous photocatalysis     Surface frustrated Lewis pairs     Perfluorooctanoic acid     Defluorination    

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Photocatalytic reduction of carbon dioxide by titanium oxide-based semiconductors to produce fuels

Xi CHEN, Fangming JIN

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 207-220 doi: 10.1007/s11708-019-0628-9

Abstract: To tackle the crisis of global warming, it is imperative to control and mitigate the atmospheric carbon dioxide level. Photocatalytic reduction of carbon dioxide into solar fuels furnishes a gratifying solution to utilize and reduce carbon dioxide emission and simultaneously generate renewable energy to sustain the societies. So far, titanium oxide-based semiconductors have been the most prevalently adopted catalysts in carbon dioxide photoreduction. This mini-review provides a general summary of the recent progresses in titanium oxide-catalyzed photocatalytic reduction of carbon dioxide. It first illustrates the use of structural engineering as a strategy to adjust and improve the catalytic performances. Then, it describes the introduction of one/two exogenous elements to modify the photocatalytic activity and/or selectivity. Lastly, it discusses multi-component hybrid titanium oxide composites.

Keywords： photocatalysis     carbon dioxide reduction     semiconductors     titanium oxide     renewable fuels    

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Response of bioaerosol cells to photocatalytic inactivation with ZnO and TiO impregnated onto Perlite and Poraver carriers

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1335-9

Abstract:

•ZnO/Perlite inactivated 72% of bioaerosols in continuous gas phase.

Keywords： Immobilized catalysts     Continuous flow     Photocatalysis     Bioaerosols     Cytotoxicity     Inactivation mechanism    

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Mechanistic insights into the selective photocatalytic degradation of dyes over TiO/ZSM-11

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1701-5

Abstract:

● TiO2/ZSM-11 was prepared by a facile solid state dispersion method.

Keywords： Selective dye degradation     Photocatalysis     TiO2     ZSM-11     Chemisorption    

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Title Author Date Type Operation

UV-LED/P25-based photocatalysis for effective degradation of isothiazolone biocide

Journal Article

Photocatalysis: from solar light to hydrogen energy

Journal Article

Metal-organic frameworks for CO

Lei ZHANG, Junqing ZHANG

Journal Article

Organic conjugated polymers and polymer dots as photocatalysts for hydrogen production

Journal Article

Efficient flower-like ZnSe/CuZnS photocatalyst for hydrogen production application

Journal Article

Layered alkali titanates (ATiO): possible uses for energy/environment issues

Journal Article

Recent advances of hydrogen production through particulate semiconductor photocatalytic overall water splitting

Journal Article

Improving hole transfer of boron nitride quantum dots modified PDI for efficient photodegradation

Journal Article

Z-scheme CdS/WO on a carbon cloth enabling effective hydrogen evolution

Journal Article

Research progress of defect-engineered UiO-66(Zr) MOFs for photocatalytic hydrogen production

Journal Article

Recent progress in photocatalytic NAD(P)H regeneration for photocatalytic-enzymatic-coupling system

Journal Article

Photo-induced surface frustrated Lewis pairs for promoted photocatalytic decomposition of perfluorooctanoic acid

Journal Article

Photocatalytic reduction of carbon dioxide by titanium oxide-based semiconductors to produce fuels

Xi CHEN, Fangming JIN

Journal Article

Response of bioaerosol cells to photocatalytic inactivation with ZnO and TiO impregnated onto Perlite and Poraver carriers

Journal Article

Mechanistic insights into the selective photocatalytic degradation of dyes over TiO/ZSM-11

Journal Article