李琴论文“In Situ Decoration of Selenide on Copper Foam for the Efficient Immobilization of Gaseous Elemental Mercury”被Environmental Science & Technology（IF:7.149）接收发表（2020.01.16）
发布时间：2020-01-19
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简介：Mercury emission from industrial activities is a great threat to public health and ecosystems. Developing new strategies and materials to remove mercury still remains a serious task. Herein, selenide-decorated copper foam prepared by a heating-stirring method (Cu-hs) was used as a monolithic mercury adsorption material. The Cu-hs exhibited much better adsorption of elemental mercury (Hg0) compared with the selenide-decorated cordierite honeycomb prepared by the same method (Cordierite-hs). Nearly 100% Hg0 adsorption efficiency was obtained under a high gaseous hourly space velocity of 6.0 * 104. The Hg0 adsorption capacity of Cu-hs reached 3743 g/m3, about 14 times higher than the 243 g/m3 of Cordierite-hs. The excellent Hg0 adsorption performance of Cu-hs was attributed to the high affinity of the selenium in Cu2Se for mercury, the homogeneous distribution of Cu2Se, and the superior fluid characteristics of the Cu foam substrate.
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