Excellent Adsorptive Behaviors of ZnO Nanoparticle-Deposited Activated Carbon Covered with Nano-Graphene Oxide

J Nanosci Nanotechnol. 2020 Apr 1;20(4):2436-2441. doi: 10.1166/jnn.2020.17195.

Abstract

In the paper, ZnO-deposited activated carbon composite (ZnO-AC) was firstly prepared in a simple two-step preparation process, and then covered with nano-graphene oxide to give the NGO-ZnOAC composite. The successful deposition of ZnO and NGO on the AC surface was demonstrated by various experiments, and the ZnO nanoparticles showed a mean diameter size mainly within about 10 nm. The specific surface area of the NGO-AC and NGO-ZnO-AC decreased from 67.74 m²/g of the parent AC to 32.54 and 11.43 m²/g, respectively. The fabricated NGO-ZnO-AC showed excellent adsorptive behaviors towards CrO2-₄ and Cu2+ ions, outperforming both ZnO-AC and AC.

Publication types

  • Research Support, Non-U.S. Gov't