Calcium-rich biochar from crab shell: An unexpected super adsorbent for dye removal

• Published in: Bioresource technology Vol. 267; pp. 510 - 516
• Main Authors: Dai, Lichun, Zhu, Wenkun, He, Li, Tan, Furong, Zhu, Nengmin, Zhou, Qin, He, Mingxiong, Hu, Guoquan
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.11.2018
• Subjects: adsorbents; Adsorption; Biochar; Congo red; Crab shell; crabs; Dye; electrostatic interactions; Fourier transform infrared spectroscopy; hydrogen bonding; Malachite green; pyrolysis; wastewater; zeta potential; Dye; Congo red; Adsorption; Biochar; Crab shell; Malachite green

•Calcium-rich biochar (CRB) was directly from crab shell without modification.•CRB showed unprecedented adsorption performance for both cationic and anionic dyes.•CRB could adsorb >10,000 mg/g malachite green.•Congo red adsorption on CRB equilibrated in 2 min with a capacity >20,000 mg/g.•CRB...