水热法制备氨处理氧化石墨烯增强导电性的 Ag/TiO₂/GO 纳米复合材料。

Hydrothermal Preparation of Ag/TiO₂/GO Nanocomposites with Ammonia-Treated Graphene Oxide for Enhanced Conductivity.

机构信息

Korea Institute of Carbon Convergence Technology, Jeonju 54853, South Korea.

Department of Carbon Materials and Fiber Engineering, Jeonbuk National University, Jeonju 54896, South Korea.

出版信息

J Nanosci Nanotechnol. 2020 Nov 1;20(11):6698-6702. doi: 10.1166/jnn.2020.18802.

DOI:10.1166/jnn.2020.18802

PMID:32604500

Abstract

In this study, Ag/TiO₂/GO nanocomposites were successfully fabricated by a facile hydrothermal method. Nitrogen-doped GO was prepared using ammonia treatment to improve its conductivity. The Ag/TiO₂/GO nanocomposites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), zeta potential, and photoluminescence spectroscopy (PL). A homogeneous dispersion of Ag/TiO₂ nanoparticles was shown on the surface of GO. Increasing the nitrogen doping concentration increased hydrophilicity, thereby improving the conductivity of Ag/TiO₂/GO nanocomposites.

摘要

在这项研究中，Ag/TiO₂/GO 纳米复合材料通过一种简便的水热法成功制备。使用氨处理制备氮掺杂 GO，以提高其导电性。Ag/TiO₂/GO 纳米复合材料通过扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)、X 射线衍射 (XRD)、紫外-可见漫反射光谱 (DRS)、Zeta 电位和光致发光光谱 (PL)进行了表征。Ag/TiO₂ 纳米颗粒在 GO 表面均匀分散。增加氮掺杂浓度提高了亲水性，从而提高了 Ag/TiO₂/GO 纳米复合材料的导电性。