School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei, 430070, China.
School of Resource and Civil Engineering, Wuhan Institute of Technology, Xiongchu Avenue 693, Wuhan, Hubei, 430073, China.
Environ Sci Pollut Res Int. 2018 Mar;25(8):7709-7718. doi: 10.1007/s11356-017-1007-x. Epub 2017 Dec 29.
The Hg removal performance of fishbone charcoal prepared from discarded fishbone has been investigated in this work. The XRD, FTIR, and BET results demonstrated that the main composition of fishbone charcoal was hydroxyapatite and the specific surface area was 117 m/g. The adsorption experiments indicated that fishbone charcoal had an extremely high adsorption capacity for Hg (243.77 mg/g). The excellent Hg adsorption capacity might be ascribed to the ion exchange of Hg to the Ca in the structure of fishbone charcoal, complexation of Hg with ≡Ca(OH) on the surface of fishbone charcoal, as well as electrostatic interaction between electronegative fishbone charcoal surface and cation Hg. This work transformed kitchen garbage (i.e., fishbone) into an effective mercury adsorbent with considerable capacity, giving a perspective sight for the utilization of solid waste.
本工作研究了由废弃鱼骨制备的鱼骨炭的汞去除性能。XRD、FTIR 和 BET 结果表明，鱼骨炭的主要成分为羟基磷灰石，比表面积为 117 m/g。吸附实验表明，鱼骨炭对 Hg 具有极高的吸附能力（243.77 mg/g）。优异的 Hg 吸附能力可能归因于 Hg 与鱼骨炭结构中 Ca 的离子交换、Hg 与鱼骨炭表面的 ≡Ca(OH)的络合以及带负电的鱼骨炭表面与阳离子 Hg 之间的静电相互作用。这项工作将厨房垃圾（即鱼骨）转化为一种具有相当容量的有效汞吸附剂，为固体废物的利用提供了新的视角。
