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Molecular recognition by gold, silver and copper nanoparticles

World Journal of Biological Chemistry 2013年第3期4卷 35-63页

作者： Yannick Tauran Arnaud Brioude Anthony W Coleman moez rhimi Beonjoom Kim CNRS LMI University of Lyon 1F69622 Villeurbanne France Institute of Industrial Science University of TokyoTokyo 153-0041Japan IFE-Micalis INRA-AgroPariTech Jouy-en-JosasF78352 domaine de Vilvert France

The intrinsic physical properties of the noble metal nanoparticles,which are highly sensitive to the nature of their local molecular environment,make such systems ideal for the detection of molecular recognition *** current review describes the state of the art concerning molecular recognition of Noble metal *** the first part the preparation of such nanoparticles is discussed along with methods of capping and stabilization.A brief discussion of the three common methods of functionalization:Electrostatic adsorption;Chemisorption;Affinity-based coordination is *** the second section a discussion of the optical and electrical properties of nanoparticles is given to aid the reader in understanding the use of such properties in molecular *** the main section the various types of capping agents for molecular recognition;nucleic acid coatings,protein coatings and molecules from the family of supramolecular chemistry are described along with their numerous *** for the nucleic acids is on complementary oligonucleotide and aptamer *** the proteins the recognition properties of antibodies form the core of the *** respect to the supramolecular systems the cyclodextrins,calix[n]arenes,dendrimers,crown ethers and the cucurbitales are treated in *** a short section deals with the possible toxicity of the nanoparticles,a concern in public health.

关键词： Hybrid nanoparticles Gold Silver Copper Metal Molecular recognition DNA Protein Supramolecular assembly Toxicity

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Cu-Based Materials for Enhanced C_(2+) Product Selectivity in Photo-/Electro-Catalytic CO_(2) Reduction: Challenges and Prospects

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Nano-Micro Letters 2024年第4期16卷 25-66页

作者： Baker rhimi Min Zhou Zaoxue Yan Xiaoyan Cai Zhifeng Jiang Institute for Energy Research School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013People’s Republic of China School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116People’s Republic of China

Carbon dioxide conversion into valuable products using photocatalysis and electrocatalysis is an effective approach to mitigate global environmental issues and the energy shortages. Among the materials utilized for catalytic reduction of CO_(2), Cu-based materials are highly advantageous owing to their widespread availability, cost-effectiveness, and environmental sustainability. Furthermore, Cu-based materials demonstrate interesting abilities in the adsorption and activation of carbon dioxide, allowing the formation of C_(2+) compounds through C–C coupling process. Herein, the basic principles of photocatalytic CO_(2) reduction reactions(PCO_(2)RR) and electrocatalytic CO_(2) reduction reaction(ECO_(2)RR) and the pathways for the generation C_(2+) products are introduced. This review categorizes Cu-based materials into different groups including Cu metal, Cu oxides, Cu alloys, and Cu SACs, Cu heterojunctions based on their catalytic applications. The relationship between the Cu surfaces and their efficiency in both PCO_(2)RR and ECO_(2)RR is emphasized. Through a review of recent studies on PCO_(2)RR and ECO_(2)RR using Cu-based catalysts, the focus is on understanding the underlying reasons for the enhanced selectivity toward C_(2+) products. Finally, the opportunities and challenges associated with Cu-based materials in the CO_(2) catalytic reduction applications are presented, along with research directions that can guide for the design of highly active and selective Cu-based materials for CO_(2) reduction processes in the future.

关键词： Photocatalytic CO_(2)reduction Cu-based materials Electrocatalytic CO_(2)reduction

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Oxygen-doping of ZnIn_(2)S_(4) nanosheets towards boosted photocatalytic CO_(2) reduction

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Journal of Energy Chemistry 2021年第6期30卷 1-9,I0001页

作者： Bao Pan Yu Wu Baker rhimi Jiani Qin Ying Huang Mingzhe Yuan Chuanyi Wang Key Laboratory of Chemical Additives for China National Light Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and TechnologyXi’an 710021ShaanxiChina College of Environmental Science and Engineering Shaanxi University of Science and TechnologyXi’an 710021ShaanxiChina Shenyang Institute of Automation GuangzhouChinese Academy of ScienceGuangzhou 511400GuangdongChina Guangdong Engineering and Technology Research Center for Environmental Purification and Functional Materials Guangzhou 511400GuangdongChina

Engineering the electronic properties of semiconductor-based photocatalysts using elemental doping is an effective approach to improve their catalytic ***,there still remain contradictions regarding the role of the dopants played in ***,ultrathin ZnIn_(2)S_(4)(ZIS) nanosheets with oxygen doping were synthesized by a one-pot solvothermal ***,XPS and Raman spectral measurements support the presence of lattice oxygen in the oxygen-doped ZIS(O-ZIS) *** optimum doping of oxygen,the ultrathin O-ZIS nanosheets show enhanced CO_(2)-to-CO conversion activity with a CO_(2)-evolving rate of 1680 μmol h^(-1) g^(-1) under visible light irradiation,which is about 7 times higher than that of the pristine ***-principle calculations support that doping of oxygen in the lattice of ZnIn_(2)S_(4) nanosheets plays a key role in tuning its electronic *** remarkable photocatalytic performance of O-ZIS can be assigned to a synergistic consequence of a unique ultrathin-layered structure and an upward shift of the conduction band minimum(CBM) caused by the oxygen doping into ZIS and the quantum confinement effect(QCE) induced by the decreased particle size after doping as well as to the improved charge separation *** present work offers a simple elemental doping method to promote charge separation at atomic level and illustrates the roles played by oxygen doping in photocatalysis,giving new insights into highly efficient artificial photosynthesis.

关键词： ZnIn_(2)S_(4) Nanosheets Oxygen doping Electronic properties Photocatalysis CO_(2)reduction

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