期刊
MATERIALS TODAY ENERGY
卷 16, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mtener.2020.100403
关键词
Nitrogen-doped graphene; Antimony recovery; Sodium-ion battery; Water purification
资金
- Ministry of Education, Singapore, under its MOE Tier 2 grant [MOE2019-T2-1-181]
The industrial release of antimony (Sb) has caused serious environmental problems and waste of antimony resources in recent years. Herein, we propose a facile approach that can solve these two issues in succession. A promising Sb adsorbent, nitrogen-doped reduced graphene oxide (NGO), was synthesized by a simple hydrothermal method, which further serves as anode materials after Sb adsorption for high-performance sodium-ion batteries. Within 20 min, the as-prepared NGO has demonstrated a high Sb rejection rate of 98% in 500 ppb Sb solution and an exceeding adsorption capacity of 115.57 mg g(-1) in 100 ppm Sb solution via effective chemisorption. The chemisorption mechanism has contributed not only to the antimony rejection performance but also the stability of the post-adsorbents. In this way, the post-adsorbent SbOx@NGO was adopted as anode material in sodium-ion batteries. The as-assembled sodium-ion battery exhibits outstanding rate performance and cycling performance with a reversible capacity of 312 mAh g(-1). The work has demonstrated a concept that can reject and recover Sb species simultaneously with minimum pollution and high economical benefit. (C) 2020 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据