Enhancing the Optical Properties of Starch/ZnO Nanocomposite Using Graphene Oxide

被引：8

作者：

Badry, Rania ^{[1
]}

Hegazy, Maroof A. ^{[2
]}

Yahia, Ibrahim S. ^{[3
,4
,5
]}

Elhaes, Hanan ^{[1
]}

Zahran, Heba Y. ^{[3
,4
,5
]}

Abdel-Salam, Ahmed, I ^{[6
]}

Matar, Hanan ^{[6
]}

Ibrahim, Medhat A. ^{[6
,7
]}

机构：

[1] Ain Shams Univ, Fac Women Arts Sci & Educ, Phys Dept, Cairo 11757, Egypt

[2] Natl Res Inst Astron & Geophys NRIAG, Cairo 11421, Egypt

[3] King Khalid Univ, Res Ctr Adv Mat Sci RCAMS, POB 9004, Abha 61413, Saudi Arabia

[4] King Khalid Univ, Fac Sci, Dept Phys, Lab Nanosmart Mat Sci & Technol LNSMST, POB 9004, Abha, Saudi Arabia

[5] Ain Shams Univ, Nanosci Lab Environm & Biomed Applicat NLEBA, Met Lab 1, Semicond Lab,Phys Dept,Fac Educ, Cairo 11757, Egypt

[6] British Univ Egypt BUE, Nanotechnol Res Ctr NTRC, Suez Desert Rd, Cairo 11837, Egypt

[7] Natl Res Ctr, Spect Dept, Mol Spect & Modeling Unit, 33 El Bohouth St, Giza 12622, Egypt

来源：

EGYPTIAN JOURNAL OF CHEMISTRY | 2022年 / 65卷 / 07期

关键词：

Starch; Zinc oxide; GO and UV-Vis Spectrophotometer;

D O I：

10.21608/EJCHEM.2021.104153.4811

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Due to its biocompatibility, starch is an eco-friendly polymer for various applications, from medical applications to optoelectronic ones. Polymer nanocomposites based on starch, zinc oxide nanoparticles (ZnO NPs), and graphene oxide (GO) are synthesized using a casting technique. A UV-Vis spectrophotometer studied optical properties, and the nanocomposite molecular structure was determined using a Fourier transform infrared (FTIR) spectrometer. The starch absorption edge was shifted to the lower energy region, and it was found that starch has two absorption edges and hence two optical band gaps. The direct and indirect optical band gap values were determined for pure starch, starch/ZnO, and starch/GO nanocomposites. Incorporating 6wt.% of ZnO NPs reduces the indirect optical bandgap from 4.77 to 2.88 eV. Meanwhile, incorporating 2wt.% of GO reduced the bandgap to 2.15 eV.

引用

页码：335 / 342

页数：8

共 32 条

[21] Starch-based nanocomposites: A comparative performance study of cellulose whiskers and starch nanoparticles [J].