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

Author

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  • Xiaohua Wang

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
    School of Architecture and Urban Planning Hunan City University, Yiyang 413099, China)

  • Ni Liu

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Yunguo Liu

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Luhua Jiang

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Guangming Zeng

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Xiaofei Tan

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Shaobo Liu

    (School of Architecture and Art, Central South University, Changsha 410082, China
    School of Metallurgy and Environment, Central South University, Changsha 410083, China)

  • Zhihong Yin

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Sirong Tian

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

  • Jiang Li

    (College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
    Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China)

Abstract

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.

Suggested Citation

  • Xiaohua Wang & Ni Liu & Yunguo Liu & Luhua Jiang & Guangming Zeng & Xiaofei Tan & Shaobo Liu & Zhihong Yin & Sirong Tian & Jiang Li, 2017. "Adsorption Removal of 17β-Estradiol from Water by Rice Straw-Derived Biochar with Special Attention to Pyrolysis Temperature and Background Chemistry," IJERPH, MDPI, vol. 14(10), pages 1-17, October.
    • Handle: RePEc:gam:jijerp:v:14:y:2017:i:10:p:1213-:d:114566
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    References listed on IDEAS

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    1. Ali Mohammed Yimer, 2015. "Review on Preparation and Description of Some First Series Divalent Transition Metal Complexes with Novel Schiff’s Base Ligands," Review of Catalysts, Conscientia Beam, vol. 2(1), pages 14-25.
    2. Ali Mohammed Yimer, 2015. "Review on Preparation and Description of Some First Series Divalent Transition Metal Complexes with Novel Schiff’s Base Ligands," Review of Catalysts, Conscientia Beam, vol. 2(1), pages 14-25.
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    Cited by:

    1. Li Liu & Shisuo Fan & Yang Li, 2018. "Removal Behavior of Methylene Blue from Aqueous Solution by Tea Waste: Kinetics, Isotherms and Mechanism," IJERPH, MDPI, vol. 15(7), pages 1-16, June.

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