Premium
High‐Temperature Reduction of Calcium Alginate to Carbon Sphere for Efficient Removal of Bivalent Cadmium
Author(s) -
Cheng Yalin,
Wang Kaiqian,
Tu Biyang,
Xia Yang,
Zhang Jiaqian,
Xue Shan,
Tao Haisheng
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902329
Subject(s) - adsorption , scanning electron microscope , langmuir adsorption model , cadmium , fourier transform infrared spectroscopy , carbon fibers , langmuir , materials science , nuclear chemistry , porosity , chemistry , chemical engineering , analytical chemistry (journal) , inorganic chemistry , chromatography , composite material , metallurgy , composite number , engineering
Abstract A carbon sphere was synthesized by high temperature reduction using alginate as a carbon source. The material was characterized by Fourier transform infrared spectrometer, X‐ray diffraction, scanning electron microscopy and energy dispersive analysis. The carbon sphere is reticulated and porous at the microscopic level. For Cd(II) removal experiments, the results showed that the carbon sphere had an excellent effect for the remove of Cd(II), and the adsorption obeyed pseudo‐second‐order kinetic model and the Langmuir adsorption isotherm model. The adsorption capacities of Langmuir isotherm were 149, 167, 196 mg⋅g −1 at 288 K, 298 K and 308 K, respectively. In general, the carbon sphere has a good application prospect for treating cadmium‐containing wastewater.