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Bimetallic sulfides CuInSe2 adsorbent for rapid elemental mercury uptake from coal-fired flue gas
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Bimetallic sulfides CuInSe2 adsorbent for rapid elemental mercury uptake from coal-fired flue gas
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Journal Article
Bimetallic sulfides CuInSe2 adsorbent for rapid elemental mercury uptake from coal-fired flue gas
2024
Overview
Coal-fired power plants use coal as fuel, which will release a lot of mercury in the combustion process, directly threatening the ecological environment of the earth. In this study, a new adsorbent CuInSe2 with an active selenium site was prepared, which can effectively remove Hg0. The flower structure of the adsorbent with uniform distribution of selenium sites was confirmed by SEM characterization. Experimental results demonstrated that the adsorption efficiency was close to 99% at 80 ∼200°C, and the adsorption efficiency remained at a stable level of 92.39% even after continuous exposure for 6 hours. The equilibrium adsorption capacity was 18.64 mg/g. CuInSe2 has excellent resistance to SO2 and NO. In conclusion, CuInSe2 adsorbents possess significant potential for mercury removal, providing a new direction for the remediation of mercury pollution in various industrial waste gases using dual-metal selenide adsorbents.
Publisher
IOP Publishing
