Adsorption performence of Tobacco Scrap to U (VI)
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TU992.3

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    Abstract:

    A series of factors, such as dosage of tobacco scrap, the solution pH of solution, the time of adsorption, the original concentration and temperature, influencing adsorption of tobacco scrap to U are investigated by means of static experiment. It takes the tobacco scrap produced during the production of cigarette as ingredient. Besides, this thesis has also adopted the FTIR, SEM and EDS to represent the tobacco scrap and has discussed the mechanism of adsorbing U (VI). The result has shown that the tobacco scrap has the best adsorption of U (VI) on condition that the temperature is 30℃, the dosage is 4g/L, the? pH of the solution is 5, the concentration of U (VI) is 25 mg/L and the adsorption time is 100 minutes. The process of adsorption fits the Level 2 Dynamic Model (R2≈1) and Langmuir Isotherm Model (R2≈1) better. The results of X-ray diffraction, FTIR, and SEM have shown that the tobacco scrap has a great capability of adsorption to U (VI), whose adsorption makes the form of its surface change. The groups that interact with U (VI) are mainly hydroxyl and carboxyl groups.

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罗慰祖,戴漾泓,杨金辉,康四军,周书葵,王贝贝,余怡.烟末对铀(Ⅵ)的吸附性能[J].土木与环境工程学报(中英文),2018,40(2):70~76

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History
  • Received:May 26,2017
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  • Online: March 08,2018
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