Effects of Fe2O3 and ZnO nanoparticles on 17β-estradiol adsorption to carbon nanotubes
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作者:
Shi, Wanzi
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Peking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Pollut Control & Reuti, Shenzhen 518055, Peoples R ChinaPeking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Pollut Control & Reuti, Shenzhen 518055, Peoples R China
Shi, Wanzi
[1
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Li, Si
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Peking Univ, Coll Environm Sci & Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R ChinaPeking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Pollut Control & Reuti, Shenzhen 518055, Peoples R China
Li, Si
[2
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Chen, Ben
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Capital Normal Univ, Coll Resources Environm & Tourism, Beijing 100048, Peoples R ChinaPeking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Pollut Control & Reuti, Shenzhen 518055, Peoples R China
Chen, Ben
[3
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Wang, Conghe
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Peking Univ, Coll Environm Sci & Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R ChinaPeking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Pollut Control & Reuti, Shenzhen 518055, Peoples R China
Wang, Conghe
[2
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Sun, Weiling
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Peking Univ, Coll Environm Sci & Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R ChinaPeking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Pollut Control & Reuti, Shenzhen 518055, Peoples R China
Sun, Weiling
[2
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机构:
[1] Peking Univ, Shenzhen Grad Sch, Sch Environm & Energy, Shenzhen Key Lab Heavy Met Pollut Control & Reuti, Shenzhen 518055, Peoples R China
[2] Peking Univ, Coll Environm Sci & Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R China
[3] Capital Normal Univ, Coll Resources Environm & Tourism, Beijing 100048, Peoples R China
Diverse engineering nanoparticles (NPs) have found their way into the environment due to their extensive applications. The widespread occurrence of NPs may affect the fate of the coexisting pollutants and other types of NPs in natural waters. This study investigated the heteroadsorption of pollutants to multiple NPs in simulated water environment. Particular attention was paid to the impact of two common metal oxide (MO) NPs, Fe2O3 and ZnO, on the adsorption of 17 beta-estradiol (E2) to carbon nanotubes (CNTs). The results showed that the presence of Fe2O3 and ZnO significantly increased the time to reach adsorption equilibrium for the adsorption of E2 to CNTs. The adsorption amount of E2 increased with increasing Fe2O3/CNTs ratio due to the adsorption of E2 to Fe2O3. In contrast, E2 adsorption was slightly inhibited by the presence of ZnO, resulting from the blockage of the adsorption sites on CNT surface by ZnO. DLVO theory calculation exhibited that Fe2O3 were likely to first homoaggregate and then heteroaggregate with CNTs, whereas the electrostatic attraction between oppositely charged ZnO and CNTs favored their heteroaggregation in the heterogeneous systems of CNTs and ZnO. This was confirmed by the transmission electron microscopy images and the thermo-gravimetric analysis. The findings highlighted the significant effects of MO on the adsorption of organic compounds to CNTs, and also provided better understanding of the fate and transport of CNTs and organic contaminants in natural aquatic environments, where they inevitably coexist with MO. (C) 2017 Published by Elsevier B.V.
机构:
Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Yu, Wan-Jing
Hou, Peng-Xiang
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Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Hou, Peng-Xiang
Li, Feng
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机构:
Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Li, Feng
Liu, Chang
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机构:
Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
机构:
Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Yu, Wan-Jing
Hou, Peng-Xiang
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机构:
Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Hou, Peng-Xiang
Zhang, Li-Li
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机构:
Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Zhang, Li-Li
Li, Feng
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机构:
Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Li, Feng
Liu, Chang
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机构:
Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Liu, Chang
Cheng, Hui-Ming
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机构:
Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R ChinaChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China