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Layered double hydroxide photocatalysts for solar fuel production

Chinese Journal of Catalysis 2021年第11期42卷 1944-1975页

作者： Kailin Wang Tianqi Wang Quazi Arif Islam Yan Wu Engineering Research Center of Nano-Geo Materials of Ministry of Education Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430074HubeiChina

Splitting water or reducing CO_(2) via semiconductor photocatalysis to produce H2 or hydrocarbon fuels through the direct utilization of solar energy is a promising approach to mitigating the current fossil fuel energy crisis and environmental *** enables not only the realization of clean,renewable,and high-heating-value solar fuels,but also the reduction of CO_(2) *** double hydroxides(LDHs)are a type of two-dimensional anionic clay with a brucite-like structure,and are characterized by a unique,delaminable,multidimensional,layered structure;tunable intralayer metal cations;and exchangeable interlayer guest ***,it has been widely investigated in the fields of CO_(2) reduction,photoelectrocatalytic water oxidation,and water photolysis to produce ***,the low carrier mobility and poor quantum efficiency of pure LDH limit its *** increasing number of scholars are exploring methods to obtain LDH-based photocatalysts with high energy conversion efficiency,such as assembling photoactive components into LDH laminates,designing multidimensional structures,or coupling different types of semiconductors to construct *** review first summarizes the main characteristics of LDH,i.e.,metal-cation tunability,intercalated guest-anion substitutability,thermal decomposability,memory effect,multidimensionality,and ***,LDHs,LDH-based composites(metal sulfide-LDH composites,metal oxide-LDH composites,graphite phase carbon nitride-LDH composites),ternary LDH-based composites,and mixed-metal oxides for splitting water to produce H_(2) are ***,graphite phase carbon nitride-LDH composites,MgAl-LDH composites,CuZn-LDH composites,and other semiconductor-LDH composites for CO_(2) reduction are *** the field of LDH-based photocatalysts has advanced considerably,the photocatalytic mechanism of LDHs has not been thoroughly elucidated;moreover,the photocatalytic active sites,the syne

关键词： Layered double hydroxides Hydrotalcite H_(2) production CO_(2) reduction Photocatalysis solar fuel production

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MXene-based photocatalysts

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Journal of Materials Science & Technology 2020年第21期56卷 18-44页

作者： Panyong Kuang Jingxiang Low Bei Cheng Jiaguo Yu Jiajie Fan State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Chemistry for Energy Materials(iChEM)School of Chemistry and Materials Scienceand National Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefei230026China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450001China

Transition metal carbide or nitride(MXene)is regarded as next-generation two-dimensional(2D)materials for various applications,such as photocatalysis,electrocatalysis,supercapacitor,lithium-ion battery and biomedicine,because of its unique physicochemical *** photocatalysis,MXene could allow fast photogenerated charge carrier separation and provide abundant surface functional groups for light harvesting materials,rendering feasible the high photoconversion ***,enormous theoretical and experimental studies have been recently made and shown the potential of MXene in various photocatalytic ***,we provide a brief overview of the MXene-based materials,along with their functions in photocatalytic ***,we summarize the recent advances and progresses of MXene-based photocatalysts,ranging from solar fuel production to pollutant ***,we present concluding remarks and the outlooks for achieving highly efficient MXene-based photocatalysts.

关键词： MXene Two-dimensional material Photocatalysis Ti3C2 solar fuel production

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Advances and challenges in developing cocatalysts for photocatalytic conversion of carbon dioxide to fuels

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Nano Research 2022年第12期15卷 10090-10109页

作者： Qian Wang Zhenhua Pan Graduate School of Engineering Nagoya UniversityFuro-choChikusa-kuNagoya464-8603Japan Institute for Advanced Research Nagoya UniversityFuro-choChikusa-kuNagoya464-8601Japan Department of Applied Chemistry Faculty of Science and TechnologyChuo University1-13-27 KasugaBunkyoTokyo112-8551Japan

The global adoption of efficient sustainable energy sources is a crucial step toward meeting energy demands while achieving carbon emission reduction *** energy has become a clean and cost-competitive alternative to traditional fossil fuels,but the intermittent nature of sunlight results in challenges associated with energy storage and *** carbon dioxide reduction intends to mimic natural photosynthesis for utilizing sunlight to chemically convert water and CO_(2) into *** this process,the solar energy is captured and stored in fuels,so-called solar fuels,for widespread on-demand *** solar fuel production systems are multi-component,comprising light-harvesting(photosensitizer)and catalytic(cocatalyst)*** are indispensable for photocatalytic CO_(2) reduction systems,which promote charge carrier separation and transport,reduce the reaction activation energy,and alter the reaction route,thereby enhancing the activity and selectivity of the photocatalytic *** review presents a comprehensive summary of the recent advancements in cocatalysts for photocatalytic CO_(2) reduction reaction(CO_(2)RR),with the purpose of providing new insights and guidance to the field with regard to research directions and best *** summarize how various cocatalysts including inorganic nanoparticles,metal complexes,enzymes,and bacteria can be combined with semiconductor photosensitizer for light-driven photocatalytic CO_(2)***-by-side comparisons reveal the strengths and limitations of each kind of cocatalysts and how lessons extracted from studying natural photosynthetic systems can be applied to investigations of artificial photosynthesis,presenting an outlook discussing possible future concepts for a more effective photocatalytic CO_(2) reduction process.

关键词： photocatalysis cocatalyst carbon dioxide reduction artificial photosynthesis solar fuel production

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Strategies and reaction systems for solardriven CO_(2) reduction by water

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碳中和(英文) 2022年第1期1卷 578-597页

作者： Ji Bian Ziqing Zhang Ye Liu Enqi Chen Junwang Tang Liqiang Jing Department Key Laboratory of Functional Inorganic Materials Chemistry(Ministry of Education) International Joint Research Center and Lab for Catalytic TechnologySchool of Chemistry and Materials ScienceHeilongjiang UniversityHarbin 150080People’s Republic of China Department of Chemical Engineering University College London Torrington PlaceWC1E 7JELondonUK

solar driven CO_(2) conversion into high-value-added chemicals and energy-rich fuels is one of the promising strategies to tackle global warming and to address the energy-supply *** though enormous effort has been devoted to exploring all sorts of homogeneous and heterogeneous photocatalysts,the current efficiency and more importantly selectivity to valuable chemicals are still rather moderate,thus it is desired to develop high-efficiency photocatalytic system toward CO_(2) reduction with excellent *** this review,fundamental aspects of photocatalytic CO_(2) reduction by pure water,the reaction systems and the reliable method for detection of the products are firstly *** the recent advances of the main strategy for improving the photocatalytic CO_(2) reduction from the perspective of promoting the CO_(2) adsorption and activation,accelerating the kinetics of water oxidation,and modulating charge separation are *** prospects and challenges on precise designing heterogeneous catalysts for CO_(2) photoreduction are proposed at the end,indicating the significance for the further development of photocatalytic systems with high CO_(2) conversion efficiency and product selectivity.

关键词： Photocatalysis CO_(2)reduction Selectivity Water solar fuel production

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