Article history: Water pollution is one of the forefront environmental problems. Due to the simpliﬁcation, ﬂexibility Received 14 May 2017 and low cost, the adsorption becomes one of the most fashionable technology and the exploitation of Received in revised form 29 July 2017 adsorbents has drawn greatly attention. In this study, a novel magnesium silicate-hydrothermal carbon Accepted 17 August 2017 composite (MS-C) was synthesized by facile hydrothermal carbonization and used to remove the cad- Available online 25 August 2017 mium (Cd(II)) and methylene blue (MB) from wastewater. It was shown that the porous and lump-like magnesium silicate (MS) was decorated with multiple hydrothermal carbon (HC) via the C O Si cova- Keywords: lent bonding. Further, the adsorption behavior of Cd(II) and MB based on the MS, HC, and MS-C were Magnesium silicate systematically investigated. The equilibrium data of both Cd(II) and MB were ﬁtted well with Langmuir Hydrothermal carbon model. Compared to pure MS and HC, the adsorption capacity of composite was signiﬁcantly improved, Adsorption accompanied by the maximum adsorption capacity of 108 mg/g for Cd(II) and 418 mg/g for MB, respec- Cd(II) Methylene blue tively. In the Cd(II)–MB binary system, the adsorption of Cd(II) was favored in comparison
Applied Surface Science – Elsevier
Published: Jan 1, 2018
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