Two-dimensional FTIR correlation spectroscopic study on structure of nano-TiO<sub>2</sub> modified silk fibroin films

FENG Xinxing; ZHENG Guifen; ZHU Hailin; GUO Yuhai; CHEN Jianyong

您当前的位置：

首页 >

文章列表页 >

Two-dimensional FTIR correlation spectroscopic study on structure of nano-TiO₂ modified silk fibroin films

更新时间：2025-12-10

- Two-dimensional FTIR correlation spectroscopic study on structure of nano-TiO₂ modified silk fibroin films
- CIESC Journal Issue 9, Pages: 2377-2382(2009)
- 作者机构：
  
  浙江理工大学材料与纺织学院，先进纺织材料与制备技术教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 September 2009，
  
  Published：05 September 2009
- 稿件说明：
移动端阅览
FENG Xinxing, ZHENG Guifen, ZHU Hailin, et al. Two-dimensional FTIR correlation spectroscopic study on structure of nano-TiO₂ modified silk fibroin films[J]. CIESC Journal, 2009, (9): 2377-2382.
DOI：

FENG Xinxing, ZHENG Guifen, ZHU Hailin, et al. Two-dimensional FTIR correlation spectroscopic study on structure of nano-TiO₂ modified silk fibroin films[J]. CIESC Journal, 2009, (9): 2377-2382. DOI：

摘要

采用溶胶-凝胶方法制备纳米TiO2复合丝素膜。UV和SEM测试结果表明，该丝素膜中纳米TiO2均匀分散在丝素中，TiO2粒径约为80 nm;同时采用一维红外光谱、二维红外相关光谱对纯丝素膜及复合丝素膜结构进行表征。结果表明，随着纳米TiO2的生成，丝素蛋白中弱氢键缔合的N—H键以及自由的N—H键发生断裂及重组，生成了强氢键;丝素分子从无序状态转变为有序排列，同时无规线团构象及α螺旋构象向β折叠构象发生转变，最后促使丝素蛋白的结晶构象从Silk Ⅰ转变为Silk Ⅱ。

Abstract

Regenerated silk fibroin/nano-TiO2 composite films in different ratios were prepared by sol-gel method.UV-Vis spectroscopy and SEM observations revealed that the nano-TiO2 particles are well dispersed in the regenerated silk fibroin.Diameter of the nano-TiO2 particles was determined as about 80 nm.FTIR and two dimensional FTIR correlation spectroscopic studies indicated that the formation of nano-TiO2 particles leads to the aggregation structural changes of silk fibroin，in which strong hydrogen bonding was reconstructed from the rupture and rearrangement of the weak and free hydrogen bonding of the N—H groups.At the same time，the alignment of the silk fibroin molecules tends to be in an ordered form，and the crystal structure of fibroin in the composite films were transformed from Silk Ⅰ to a typical Silk Ⅱ form.

关键词

Keywords

references

Views

306

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influence of inorganic salts on pervaporation performance  of PDMS/ceramic composite membranes

Layer-by-layer self-assembly complex membrane composed of sodium cellulose sulfate-chitosan

Electrocatalytic oxidation of ethanol on SnO2 adulterated TiO2-Pt nanostructure complex catalysts

Influence of simulated ethanol fermentation components on pervaporation performance of PDMS/ceramic composite membranes

Preparation and performance of VSA-SA/PS fixed carrier membrane for CO2/CH4 separation

Related Author

JIN Wanqin

CHEN Yiwei

XIANGLI Fenjuan

XIA Shanshan

WEI Wang

HOU Dan

XIE Yuliang

YAO Shanjing

Related Institution

南京工业大学材料化学工程国家重点实验室

浙江大学化学工程与生物工程学系

安徽省功能性分子固体重点实验室

安徽师范大学化学与材料科学学院

南京工业大学

⁰

Two-dimensional FTIR correlation spectroscopic study on structure of nano-TiO2 modified silk fibroin films

DOI：

摘要

Abstract

关键词

Keywords

references

Two-dimensional FTIR correlation spectroscopic study on structure of nano-TiO₂ modified silk fibroin films