| Literature DB >> 28494154 |
Luhua Jiang1,2, Yunguo Liu1,2, Shaobo Liu3, Guangming Zeng1,2, Xinjiang Hu4, Xi Hu4, Zhi Guo1,2, Xiaofei Tan1,2, Lele Wang5, Zhibin Wu1,2.
Abstract
Adsorption of two estrogen contaminants (17β-estradiol and 17α-ethynyl estradiol) by graphene nanomaterials was investigated and compared to those of a multi-walled carbon nanotube (MWCNT), a single-walled carbon nanotube (SWCNT), two biochars, a powdered activated carbon (PAC), and a granular activate carbon (GAC) in ultrapure water and in the competition of natural organic matter (NOM). Graphene nanomaterials showed comparable or better adsorption ability than carbon nanotubes (CNTs), biochars (BCs), and activated carbon (ACs) under NOM preloading. The competition of NOM decreased the estrogen adsorption by all adsorbents. However, the impact of NOM on the estrogen adsorption was smaller on graphenes than CNTs, BCs, and ACs. Moreover, the hydrophobicity of estrogens also affected the uptake of estrogens. These results suggested that graphene nanomaterials could be used to removal estrogen contaminants from water as an alternative adsorbent. Nevertheless, if transferred to the environment, they would also adsorb estrogen contaminants, leading to great environmental hazards.Entities:
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Year: 2017 PMID： 28494154 DOI： 10.1021/acs.est.7b00073
Source DB: PubMed Journal: Environ Sci Technol ISSN： 0013-936X Impact factor: 9.028