期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 10, 期 6, 页码 1410-1417出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201500242
关键词
chromium; graphene; iron; lead; plasma chemistry
资金
- MOST [2011CB933700]
- NSFC [21477133, 41273134, 91326202, 21225730]
- Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Nanoscale zero-valent iron particles supported on reduced graphene oxides (NZVI/rGOs) from spent graphene oxide (GO)-bound iron ions were developed by using a hydrogen/argon plasma reduction method to improve the reactivity and stability of NZVI. The NZVI/rGOs exhibited excellent water treatment performance with excellent removal capacities of 187.16 and 396.37mgg(-1) for chromium and lead, respectively. Moreover, the NZVI/rGOs could be regenerated by plasma treatment and maintained high removal ability after four cycles. X-ray photoelectron spectroscopy analysis results implied that the removal mechanisms could be attributed to adsorption/precipitation, reduction, or both. Such multiple removal mechanisms by the NZVI/rGOs were attributed to the reduction ability of the NZVI particles and the role of dispersing and stabilizing abilities of the rGOs. The results indicated that the NZVI/rGOs prepared by a hydrogen/argon plasma reduction method might be an effective composite for heavy-metal-ion removal.
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