Investigation on the Selective Separation of Chiral Carbon Nanotubes by Photoselective Laser Excitation at the Wave length of the Resonance Absorption Bands

共振吸收带波长光选择性激光激发选择性分离手性碳纳米管的研究

• 批准号: 18310080
• 负责人: ISHII Tadahiro
• 金额: $ 8.52万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18310080/
• 关键词: Chiral Carbon Nanotube; Photo resonance excitation; OPO pulsed Laser; Chiral Selective Separation; Surfactant (NaDDBS); Metallic and Semi conducting; Enrichment Metallic SWNT; Photo-Thermal Conversion; 単層カーボンナノチューブ; カイラル構造体; チップ型&ホーン型; カルボキシメチル

This report is consisted of two parts. Part A is the inevestigation of the photoselective separation of carbon nanotube in the solubilized solution at the selective laser irradiatio. . The part B is the physical chemistry of the solubilized SWCNT solution by using detergents and bioploymer. . The investigation of the chiral selective separations of carbon nanotubes of the metallic and the semiconducting single-walled carbon nanotubes (m-SWNT&s-SWNT) has been pursued by the photoselective excitaion of the dispersed SWNT in the detergent or the biopolymer in solution at the high power OPO (optical parametric oscillator) pulsed laser excitation at the resonance absorption band of chiral structures.When the laser excitation was made for the aqueous SWCNT solution solubilized with NaDDBS (Dodecylbenzenesulfonic acid sodium salt) at the excitation wave length of M_<11> (507nm), S_<22> (732nm), and S_<11> (977nm), respectively. The highest bnand energy of M_<11> degraded the structure of carb … More onnanotube completely as the pulse number increased. However, the excitations at the wave length of S_<22> and S_<11> bands damaged only s-SWCNT, but did not give the structural damage of m-carbonanotubes. It indicates that the ecitations for the soliubilized SWCNT solution at the wave lengths of s-SWCNTs could give the concentrated m-SWNT at the sacrifice of s-SWCNT. Raman spectroscopic and AFM measurements revealed that there is ocurred the thermalization at the excitation of the semiconducting wave length. In order to have more idial solubilizing agents for the photo-selective chiral laser separation, the physical chemistry of the solubilized SWCNT in solution was invetstigated by using many kinds of detergents or biopolymer such as sodiumdodecylsulphate (SDS) or carboxymethylcellulose (CMC). It is found that the stability of the solubilized SWCNT in CMC solution is very sensitive for the temperature changes in the solution. The solubilized solution of SWCNT in CMC is irreversible for the rising temperature or the falling temperature changes. It indicates that the solubilized SWCNT in CMC solution is expected as a good agent for the enhancement of the photoselective chiral separation of SWCNT in solution, because the temperture rise will give the separation of SDWCNT from the solution at the laser excitaion wave length Less

该报告由两个部分组成。 A部分是在选择性激光辐照室中可溶性溶液中碳纳米管的照片选择性分离的不可避免的。 。 B部分是使用确定剂和生物聚合物的可溶性SWCNT溶液的物理化学。 。 The investment of the chiral selective separations of carbon nanotubes of the metallic and the semiconducting single-walled carbon nanotubes (m-SWNT&s-SWNT) has been pursued by the photoselective excitement of the dispersed SWNT in the detector or the biopolymer in solution at the high power OPO (optical parametric oscillator) pulsed laser excitement at the resonance lossy band用M_ <11>（507nm）的兴奋波长度以NADDBS（十二烷基苯甲磺酸钠盐）固化的水溶液溶液进行激光兴奋时。 M_ <11>的最高BNAND能量降解了碳水化合物的结构……随着脉冲数量的增加，更多的OnnanOtube完全降低了碳水化合物。但是，S_ <22>的波长和S_ <11>频段的兴奋仅损坏了S-SWCNT，但没有给出M-核管的结构损害。它表明在S-SWCNT的波长处的固化SWCNT溶液的元素可以在S-SWCNT牺牲时给出浓缩的M-SWNT。拉曼光谱和AFM测量结果表明，在半导体波长的兴奋时，热量进化。为了使更多的建鼠能溶解剂用于光性手性激光分离，通过使用多种探测器或生物聚合物（例如十二烷基硫酸钠（SDS））或羧甲基甲基甲素（CMC），邀请了溶液中可溶性SWCNT的物理化学性质。发现CMC溶液中可溶性SWCNT的稳定性对溶液的温度变化非常敏感。 CMC中SWCNT的可溶溶液对于温度升高或温度下降的变化是不可逆的。它表明，CMC溶液中的可溶性SWCNT预计是增强溶液中SWCNT的照片选择性手性分离的好药物，因为温度升高将使SDWCNT从溶液中分离在激光兴奋波长度下

项目成果

Temperature Effects on the Optical Properties of SWNTs Dispersed in Aqueous Solutions

温度对分散在水溶液中的单壁碳纳米管光学性质的影响

• 发表时间: 2007
• 作者: Toru Ishii;Katsumi Uchida;Tadahiro Ishii and Hirofumi Yajima;石井忠浩;石井忠浩;石井忠浩;Tadahiro Ishii;Tadahiro Ishii;Tadahiro Ishii
• 通讯作者: Tadahiro Ishii

孤立分散SWNTのカイラリティー特性に及ぼすOPOパルスレーザー照射のフルェンス効果

OPO 脉冲激光照射对孤立分散 SWNT 手性特性的通量效应

• 发表时间: 2009
• 作者: N. Tanei;H. Ogi;N. Nakamura;M. Hirao;中村 暢伴;中村 暢伴;舎川 知広;荻 博次;Tadahiro Ishii;Tadahiro Ishii;石井忠浩;石井忠浩
• 通讯作者: 石井忠浩

Ultrasonication Effects on Debundling and Cutting of Single-Walled Carbon Nanotubes dispersed in AqueousSolution

超声对分散在水溶液中的单壁碳纳米管的解束和切割的影响

• 发表时间: 2007
• 作者: Toru Ishii;Katsumi Uchida;Tadahiro Ishii and Hirofumi Yajima;石井忠浩;石井忠浩;石井忠浩;Tadahiro Ishii
• 通讯作者: Tadahiro Ishii

Optical pH Response of Micelle-encapsulated and Polymer-wrapped Single-Wall Carbon Nanotubes

胶束封装和聚合物包裹的单壁碳纳米管的光学 pH 响应

• 发表时间: 2006
• 作者: Isamu Tajima;Catalin Romeo Luclescu;Yoshie Suzuki;Katsumi Uchida;Tadahiro Ishii;and Hirofumi Yajima;石井忠浩;石井忠浩;Tadahiro Ishii;Tadahiro Ishii;石井忠浩;石井忠浩;Tadahiro Ishii;石井忠浩;石井忠浩;石井忠浩;Tadahiro Ishii;Tadahiro Ishii
• 通讯作者: Tadahiro Ishii

ナノカーボンハンドブック:超音波による単層CNTの孤立分散法

纳米碳手册：使用超声波的单壁碳纳米管的分离分散方法

• 发表时间: 2007
• 作者: 石井忠浩;矢島博文;Catalin Romeo Luclescu
• 通讯作者: Catalin Romeo Luclescu