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dc.contributor.authorAmonrada Saningen_US
dc.contributor.authorServann Herouen_US
dc.contributor.authorDecha Dechtriraten_US
dc.contributor.authorChanoknan Ieosakulraten_US
dc.contributor.authorPasit Pakawatpanuruten_US
dc.contributor.authorSulawan Kaowphongen_US
dc.contributor.authorChanchana Thanachayanonten_US
dc.contributor.authorMaria Magdalena Titiricien_US
dc.contributor.authorLaemthong Chuenchomen_US
dc.description.abstract© 2019 The Royal Society of Chemistry. Troublesome aquatic weed, water hyacinth (Eichhornia crassipes) was converted into solid and liquid fractions via green and energy-saving hydrothermal carbonization (HTC). The solid product, hydrochar, was employed as a precursor to prepare magnetic carbon materials by simple activation and magnetization using KOH and Fe3+ ions, respectively. The obtained magnetic adsorbent possessed good magnetic properties and presented outstanding capacities to adsorb methylene blue (524.20 mg g-1), methyl orange (425.15 mg g-1) and tetracycline (294.24 mg g-1) with rapid adsorption kinetics even at high concentrations (up to 500 mg L-1), attributed to high specific surface area and mesopore porosity. Besides the solid hydrochar, the water-soluble liquid product was used to fabricate carbon-based supercapacitors through facile KOH activation with a considerably lower KOH amount in comparison to conventional activation. The supercapacitor electrode made from activated liquid product possessed an extremely high specific surface area of 2545 cm2 g-1 and showed excellent specific capacitance (100 F g-1 or 50 F cm-3 at 1 A g-1) and good retention of capacitance (92% even after 10000 cycles). This work demonstrated that both solid and liquid HTC fractions from this bio-waste can serve as effective sources to prepare functional carbon materials, making this approach a sustainable zero-waste biomass conversion process.en_US
dc.subjectChemical Engineeringen_US
dc.titleGreen and sustainable zero-waste conversion of water hyacinth (: Eichhornia crassipes) into superior magnetic carbon composite adsorbents and supercapacitor electrodesen_US
article.title.sourcetitleRSC Advancesen_US
article.volume9en_US Mary, University of Londonen_US Universityen_US College Londonen_US National Metal and Materials Technology Centeren_US Universityen_US of Songkla Universityen_US Mai Universityen_US
Appears in Collections:CMUL: Journal Articles

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