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Adsorption Removal of 17 beta-Estradiol from Water by Rice Straw-Derived Biochar with Special Attention to Pyrolysis Temperature and Background Chemistry

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WOS被引频次:6
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成果类型:
期刊论文
作者:
Wang, Xiaohua;Liu, Ni*;Liu, Yunguo*;Jiang, Luhua;Zeng, Guangming;Tan, Xiaofei;Liu, Shaobo;Yin, Zhihong;Tian, Sirong;Li, Jiang
通讯作者:
Liu, Ni;Liu, Yunguo
作者机构:
[Yin, Zhihong; Liu, Yunguo; Jiang, Luhua; Zeng, Guangming; Wang, Xiaohua; Tan, Xiaofei; Li, Jiang; Liu, Ni; Liu, N; Tian, Sirong] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
[Yin, Zhihong; Liu, Yunguo; Jiang, Luhua; Zeng, Guangming; Wang, Xiaohua; Tan, Xiaofei; Li, Jiang; Liu, Ni; Liu, N; Tian, Sirong] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Hunan, Peoples R China.
[Wang, Xiaohua] Hunan City Univ, Sch Architecture & Urban Planning, Yiyang 413099, Peoples R China.
[Liu, Shaobo] Cent S Univ, Sch Architecture & Art, Changsha 410082, Hunan, Peoples R China.
[Liu, Shaobo] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China.
通讯机构:
[Liu, N; Liu, YG] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
[Liu, N; Liu, YG] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
*17beta-estradiol;*adsorption;*endocrine disrupting chemicals;*pyrolysis temperature;*rice straw biochar
期刊:
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN:
1660-4601
年:
2017
卷:
14
期:
10
文献类别:
WOS:Article
所属学科:
ESI学科类别:环境科学/生态学;WOS学科类别:Environmental Sciences;Public, Environmental & Occupational Health
入藏号:
机构署名:
本校为其他机构
院系归属:
冶金与环境学院
建筑与艺术学院
摘要:
Rice straw biochar that produced at three pyrolysis temperatures (400, 500 and 600 °C) were used to investigate the adsorption properties of 17β-estradiol (E2). The biochar samples were characterized by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), elemental analysis and BET surface area measurements. The influences of pyrolysis temperature, E2 concentration, pH, ionic strength, background electrolyte and humic acid were studied. Kinetic and isotherm results illustrated that the adsorption process could be well described by pseudo-second-order and Freundlich models. Experimental results showed that ionic strength had less influence on the adsorption of E2 by 500 and 600 °C rice straw biochar. Further, multivalent ions had positive impact on E2 removal than monovalent ions and the influence of the pyrolysis temperature was unremarkable when background electrolyte existed in solutions. The adsorption capacity of E2 decreased with the pH ranged from 3.0 to 12.0 and the humic acid concentration from 2 to 10 mg L-1. Electrostatic attractions and π-π interaction were involved in the adsorption mechanisms. Compared to low-temperature biochar, high-temperature biochar exhibited a better adsorption capacity for E2 in aqueous solution, indicated it had a greater potential for E2 pollution control. © 2017 by the authors. Licensee MDPI, Basel, Switzerland.
参考文献:
Al-Wabel MI, 2013, BIORESOURCE TECHNOL, V131, P374, DOI 10.1016/j.biortech.2012.12.165
Albadarin AB, 2012, CHEM ENG J, V179, P193, DOI 10.1016/j.cej.2011.10.080
Antal MJ, 2003, IND ENG CHEM RES, V42, P1619, DOI 10.1021/ie0207919
BOYD GE, 1947, J AM CHEM SOC, V69, P2836, DOI 10.1021/ja01203a066
Cantrell KB, 2012, BIORESOURCE TECHNOL, V107, P419, DOI 10.1016/j.biortech.2011.11.084

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