DICP OpenIR
Subject Area物理化学
White Light Assisted Photosensitized Synthesis of Ag Nanoparticles: Excited-State Hydrogen Bonding Roles
Yang, Yang1; Liu, Lei1,3; Yin, Hongming1,2; Xu, Dali1; Liu, Guangye1; Song, Xiancheng4; Liu, Jianyong1; Yin HM(尹鸿鸣); Liu JY(刘建勇)
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2013-06-06
DOI10.1021/jp4030624
Volume117Issue:22Pages:11858-11865
Indexed BySCI
Cooperation Status
SubtypeArticle
Department11
Funding Project1101
Contribution Rank待补充
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordPHOTOCHEMICAL-SYNTHESIS ; GOLD NANOPARTICLES ; PROTON-TRANSFER ; FLUORESCENCE ; DYNAMICS ; BENZIL ; NANOSTRUCTURES ; IRRADIATION ; EXCITATION ; MECHANISM
AbstractAg nanoparticles (NPs) with different surface morphologies can be synthesized through white light irradiation of photochemically prepared Ag nanoseeds within 20 min. The fundamental photophysical and photochemical properties of benzil in deaerated solvents at room temperature are investigated through analyzing nanosecond absorption spectra. In ethanol, after the single photon excitation of benzil by 355 nm nanosecond laser pulses, one kind of reactive intermediate with a long-lived lifetime of 375.83 +/- 93.70 mu s is generated and capable of reducing the coexisted Ag+ to generate Ag nanoseeds with their diameters in the range from 3 to 12 nm. Theoretical calculations indicate that the reactive intermediate is benzil-ethanol hydrogen-bonded complex biradical (ben-eth biradical). Furthermore, the excited-state hydrogen bonding dynamics and its influence on the photophysical and photochemical properties are discussed. White light irradiation under air can make these Ag nanoseeds grow in size with a speed of 10 nm/min and have unique morphologies. In particularly, the nanowhisker covered Ag NPs can be synthesized and possess a unique narrow optical absorption peak at 325 nm. This work not only provides insights into the mechanisms of photosensitized synthesis of Ag nanoseeds but also emphasizes the utilization of white light as a convenient and efficient tool to tailor morphologies of Ag NPs.
Language英语
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
URL查看原文
WOS IDWOS:000320214800050
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/119263
Collection中国科学院大连化学物理研究所
Corresponding AuthorYin HM(尹鸿鸣); Liu JY(刘建勇)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Dalian Maritime Univ, Dept Phys, Dalian 116026, Peoples R China
3.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
4.Beihang Univ, Sch Jet Prop, Beijing 100191, Peoples R China
Recommended Citation
GB/T 7714
Yang, Yang,Liu, Lei,Yin, Hongming,et al. White Light Assisted Photosensitized Synthesis of Ag Nanoparticles: Excited-State Hydrogen Bonding Roles[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2013,117(22):11858-11865.
APA Yang, Yang.,Liu, Lei.,Yin, Hongming.,Xu, Dali.,Liu, Guangye.,...&刘建勇.(2013).White Light Assisted Photosensitized Synthesis of Ag Nanoparticles: Excited-State Hydrogen Bonding Roles.JOURNAL OF PHYSICAL CHEMISTRY C,117(22),11858-11865.
MLA Yang, Yang,et al."White Light Assisted Photosensitized Synthesis of Ag Nanoparticles: Excited-State Hydrogen Bonding Roles".JOURNAL OF PHYSICAL CHEMISTRY C 117.22(2013):11858-11865.
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