Noncovalently modified carbon nanotubes with carboxymethylated chitosan: a controllable donor-acceptor nanohybrid
文献类型：期刊论文
| 作者 | Long, Dewu; Wu, Guozhong; Zhu, Guanglai |
| 刊名 | International journal of molecular sciences
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 9期号:2页码:120-130 |
| 关键词 | Multiwalled carbon nanotubes Carboxymethylated chitosan Charge separation Donor-accepter nanohybrid |
| ISSN号 | 1661-6596 |
| 通讯作者 | Wu, guozhong(wuguozhong@sinap.ac.cn) |
| 英文摘要 | We report here the modification of multiwalled carbon nanotubes (mwnts) with a kind of polysaccharide, carboxymethylated chitosan (cmcs), and their potential usage as donor-acceptor nanohybrids. the modified composites (cmcs/ mwnts) were characterized by high- resolution tem, ft- ir, tga and time- resolved spectroscopy. the time- resolved spectroscopic experiments revealed that interfacial electron transfer readily takes place between mwnts and surface immobilized cmcs chains. the forward electron transfer is fast (< 20 ns) while the backward recombination is slow. the recombination process strongly depends on the chain length of carboxylmethylated chitosan, i.e. a shorter recombination lifetime (similar to 1.1 mu s) for the shorter- chain cmcs coated mwnts against that of the longer- chain cmcs coated mwnts (similar to 3.5 mu s). the results demonstrated that the cmcs/ mwnts composite may be applied as a controllable donor- acceptor nanohybrid. |
| WOS关键词 | ELECTRON-TRANSFER ; CHITIN DERIVATIVES ; LASER PHOTOLYSIS ; AQUEOUS-SOLUTION ; FUNCTIONALIZATION ; POLYMER ; NANOPARTICLES ; SURFACE ; SYSTEM ; DOT |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000253549200002 |
| 出版者 | MDPI AG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175870 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wu, Guozhong |
| 作者单位 | Chinese Acad Sci, Shanghai Inst Appl Phys, Dept Nucl Anal, Shanghai 201800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Long, Dewu,Wu, Guozhong,Zhu, Guanglai. Noncovalently modified carbon nanotubes with carboxymethylated chitosan: a controllable donor-acceptor nanohybrid[J]. International journal of molecular sciences,2008,9(2):120-130. |
| APA | Long, Dewu,Wu, Guozhong,&Zhu, Guanglai.(2008).Noncovalently modified carbon nanotubes with carboxymethylated chitosan: a controllable donor-acceptor nanohybrid.International journal of molecular sciences,9(2),120-130. |
| MLA | Long, Dewu,et al."Noncovalently modified carbon nanotubes with carboxymethylated chitosan: a controllable donor-acceptor nanohybrid".International journal of molecular sciences 9.2(2008):120-130. |
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来源：高能物理研究所
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