Characterization and application of microalgae hydrochar as a low-cost adsorbent for Cu(II) ion removal from aqueous solutions

Environmental Science and Pollution Research International
Mohammad SaberKunio Yoshikawa

Abstract

Hydrochar prepared from the hydrothermal liquefaction of microalgae is characterized and investigated for copper removal from aqueous solution. Two hydrochars were prepared at 210 °C (HD210) and 250 °C (HD250). The effect of the initial solution pH, the initial Cu(II) concentration, the contact time, and the temperature will be investigated. According to the elemental analysis, the volatile matter in the hydrochars was lower and ash content was higher than those of microalgae. Also, pore characteristic analysis revealed that the surface area of the HD250 was higher than that of the HD210 suggesting a higher potential for the adsorption process. FTIR analysis and Boehm titration showed that both hydrochars contained oxygen-containing functional groups (OFG) on the surface which were effective for the copper removal. The adsorption experiments indicated that the amount of copper adsorbed reached a maximum value at the pH of 5 which was considered as the optimum solution pH. In addition, HD250 had a higher amount of copper adsorption than that of HD210 at all values of the solution pH. The adsorption data at the optimum solution pH was well fitted by the Langmuir's isotherm model and the adsorption process could be well described ...Continue Reading

References

Dec 4, 2003·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·H TapieroK D Tew
Jun 7, 2005·Bioresource Technology·Upendra Kumar, Manas Bandyopadhyay
Mar 14, 2007·Journal of Environmental Management·Haluk AydinCiğdem Yerlikaya
Jan 25, 2008·Colloids and Surfaces. B, Biointerfaces·Tehseen AmanQudsia Bano
Feb 23, 2008·Journal of Hazardous Materials·Ayhan Demirbas
Mar 4, 2008·Journal of Hazardous Materials·Wei ZhengGuang-Ming Zeng
Apr 29, 2008·Bioresource Technology·A B Pérez-MarínV Meseguer Zapata
Mar 6, 2009·Journal of Hazardous Materials·Zhengang Liu, Fu-Shen Zhang
May 12, 2009·Ecotoxicology and Environmental Safety·Bibiana DebeliusLuis M Lubián
Mar 8, 2011·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Mauro MecozziAndrea Tornambè
Jan 3, 2012·Journal of Environmental Management·Frantseska-Maria PelleraEvangelos Gidarakos
Jan 27, 2015·Chemosphere·Xiaofei TanZhongzhu Yang

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Citations

Jan 9, 2019·Environmental Science and Pollution Research International·Rauf ForoutanBahman Ramavandi
Mar 25, 2019·Environmental Science and Pollution Research International·Jianyang SongAhmed Mosa

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