Effect of zinc and cerium addition on property of copper-based adsorbents for phosphine adsorption
来源期刊：JOURNAL OF RARE EARTHS2010年第4期
论文作者：宁平 易红宏 余琼粉 唐晓龙 杨丽萍 叶智青
文章页码：581 - 586
摘 要：A series of copper-based activated carbon （AC） adsorbents were prepared in order to investigate the effect of Zn, Ce addition on Cu-based AC adsorbent for phosphine （PH3） adsorption removal from yellow phosphorous tail gas. N2 adsorption isotherm and X-ray diffrac-tion （XRD） results suggested that the addition of Zn could increase the adsorbent ultramicropores, decrease the adsorbent supermicropores and the adsorbent average pore diameter. Therefore it enhanced the PH3 adsorption capacity. Appropriate amount of Ce addition could promote the reducibility of copper oxide, increase the thermal stability of adsorbent, and therefore enhance the PH3 adsorption capacity. It could be concluded that copper, zinc, and cerium exhibited a strong synergistic effect on the Cu-based AC adsorbents, which enhanced significantly the adsorption capacity of activated carbon. The present study indicated that the Cu-based adsorbents might be one of candidates for PH3 removal from yellow phosphorous tail gas.
宁平，易红宏，余琼粉，唐晓龙，杨丽萍，叶智青
Faculty of Environmental Science and Engineering, Kunming University of Science & Technology
摘 要：A series of copper-based activated carbon （AC） adsorbents were prepared in order to investigate the effect of Zn, Ce addition on Cu-based AC adsorbent for phosphine （PH3） adsorption removal from yellow phosphorous tail gas. N2 adsorption isotherm and X-ray diffrac-tion （XRD） results suggested that the addition of Zn could increase the adsorbent ultramicropores, decrease the adsorbent supermicropores and the adsorbent average pore diameter. Therefore it enhanced the PH3 adsorption capacity. Appropriate amount of Ce addition could promote the reducibility of copper oxide, increase the thermal stability of adsorbent, and therefore enhance the PH3 adsorption capacity. It could be concluded that copper, zinc, and cerium exhibited a strong synergistic effect on the Cu-based AC adsorbents, which enhanced significantly the adsorption capacity of activated carbon. The present study indicated that the Cu-based adsorbents might be one of candidates for PH3 removal from yellow phosphorous tail gas.
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