大学英语四六级考试-考试流程注意事项-.ppt

大学英语四六级考试-考试流程注意事项-20140224博士学位论文
regenerative resources. They could be used as adsorbents for removal of cational
organic dye methylene blue in wasterwater through the functional groups of humic
acid molecules. The experimental results showed that humic acid coated ic
nanoparticles possess fast adsorbing rate and large adsorbing capacity. Furthermore,
the desorbing process of dye from ic adsorbents was very easy and the
ic adsorbents could be reused. The even important thing for this process is its
ic seperation.
4. After using for adsorbing methylene blue dye, the humic acid coated ic
nanoparticles could be turned into carbon coated ic nanoparticles by high
temperature carbonization. The latter could be used as anode materials for lithium-ion
batteries, with high reversible capacity and significantly enhanced cycling
performance pared mercial carbon products.
5. The poly (acrylic acid) coated Fe3O4 nanoparticles with self-assembly
structure were prepared by solvent-thermal method. They could be dispersed in water
and turn into ic colloid. Under the ic field, this ic colloid could
form photonic crystals to modulate the light they reflected. Through tuning the
ic field strength, the band gap of photonic crystals could change easily and the
color of diffraction lights could be seen by nake eyes.

Key Words: Nanoparticles; ic; Iron oxides; Surface modification;
ic resonance imaging (MRI); Cell marking; Water treatment;
Lithium-ion batteries materials

V
湖南大学
学位论文原创性声明
本人郑重声明:所呈交的论文是本人在导师的指导下独立进行研究所取
得的研究成果。除了文中特别加以标注引用的内容外,本论文不包含任何其
他个人或集体已经发表或撰写的成果作品。对本文的研究做出重要贡献的个
人和集体,均已在文中以明确方式标明。本人完全意识到本声明的法律后果
由本人承担。

作者签名: 日期: 年月日

学位论文版权使用授权书
本学位论文作者完全了解学校有关保留、使用学位论文的规定,同意学
校保留并向国家有关部门或机构送交论文的复印件和电子版,允许论文被查
阅和借阅。本人授权湖南大学可以将本学位论文的全部或部分内容编入有关
数据库进行检索,可以采用影印、缩印或扫描等复制手段保存和汇编本学位
论文。
本学位论文属于
1、保密□√,在 2 年解密后适用本授权书。
2、不保密□。
(请在以上相应方框内打“√”)

作者签名: 日期: 年月日
导师签名: 日期: 年月日
I
博士学位论文
第 1 章绪论
引言
纳米科技主要是研究尺寸在 1-100 nm 之