4.2 Article

Facile Synthesis of Phytic Acid Impregnated Polyaniline for Enhanced U(VI) Adsorption

期刊

JOURNAL OF CHEMICAL AND ENGINEERING DATA
卷 63, 期 10, 页码 3989-3997

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.jced.8b00688

关键词

-

资金

  1. National Natural Science Foundation of China [21806133]
  2. Doctor Research Foundation of Southwest University of Science and Technology [16zx7156]
  3. Southwest University of Science and Technology [17LZX531, 18LZXT03]
  4. Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory [16kfhk01]

向作者/读者索取更多资源

A novel phytic acid impregnated polyaniline (PA-PANI) was synthesized by a in situ polymerization and supermolecular self-assembly method and has been used as an adsorbent for efficient capture of U(VI) from aqueous solution. The structure and morphology of the adsorbent were well characterized. The influence of different factors such as pH value, ionic strength, contact time, initial U(VI) concentration and temperature on the adsorption of U(VI) onto PA-PANI-3 were carried out by batch adsorption experiments. The results demonstrated an enhanced U(VI) adsorption capacity of 86.6 mg/g for PA-PANI-3, greatly exceeding that of polyaniline (PANI, 8.8 mg/g). The adsorption process follows the pseudo-second order kinetic and Langmuir isotherm models with the theoretical maximum adsorption capacity of 90.3 mg/g. According to the calculation from the Dubinin-Radushkevich isotherm model equation, it is suggested that the adsorption is mainly a chemical adsorption mechanism. U(VI) is adsorbed on PA-PANI-3 via the phosphoric acid, amine, and imine groups. The U(VI) can be desorbed from the U(VI) adsorbed PA-PANI-3 with a desorption efficiency of 90.8% by using 0.1 mol/L Na2CO3 solution. This study demonstrated that PA-PANI could be used as an efficient adsorbent for removal and recovery of U(VI) from aqueous solution.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.2
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据