Removal of Nonylphenol and Octylphenol from Aqueous Solutions by a Novel Nano-Composite (ZVI/Fullerene)

Proceedings

Genc, Seval¹  Can, Zehra Semra²  Haciosmanoglu, Gül Gülenay³  Yücesoy-Ozkan, Zeynep⁴  Soyer, Elif⁵ 

[1] Author to whom correspondence should be addressed.;Department of Environmental Engineering, Istanbul Technical University, Istanbul 34469, Turkey;Department of Environmental Engineering, Marmara University, Istanbul 34726, Turkey;Department of Metallurgical and Materials Engineering, Marmara University, Istanbul 34726, Turkey;Presented at the 3rd EWaS International Conference on “Insights on the Water-Energy-Food Nexus”, Lefkada Island, Greece, 27–30 June 2018

关键词: nano-composite;    nZVI;    Fullerene;    nonylphenol;    octylphenol;   

DOI  :  10.3390/proceedings2110654

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

Nonylphenol (NP) and octylphenol (OP) are considered as endocrine disrupting compounds and they restrict the reuse potential of wastewater. Therefore, innovative and reliable technologies are required for elimination of these compounds from waste streams. In this study, we consider use of iron nanoparticles (nZVI) (0.1 mM; 2 mM) and also a composite of nZVI/fullerene nanoparticles (aq-nC60) (0.1 mM nZVI/2.5 ppm aq-nC60; 2 mM nZVI/2.5 ppm aq-nC60) for the removal of 25 μg/L NP and OP concentrations. The nano-composite was synthesized according to chemical reduction method and was characterized using XRD, particle size distribution and zeta potential measurements. NP and OP concentrations were quantified with a GC-MS. The results demonstrated that 0.1 mM nZVI alone resulted in 6% and 17% decrease in NP and OP concentrations, respectively. However, when the nZVI concentration was increased to 2 mM, the removal efficiency increased to 59% for NP and 32% for OP. When compared with NP, lower removal rates were achieved for OP regardless of the nZVI concentration. Although NP and OP have similar chemical structures, OP has a branched arrangement and this structure is anticipated to cause a decrease in the active adsorption sites and lower removal efficiency for OP. Highest removal was obtained with 0.1 mM nZVI/2.5 ppm aq-nC60 for both NP and OP. Our results show that nZVI/aq-nC60 holds a potential for elimination of NP and OP from wastewater sources.

【 授权许可】

CC BY