Removal-Regeneration of Aqueous Phosphate with Bulk and Thin-Layer Boehmite
Removal-Regeneration of Aqueous Phosphate with Bulk and Thin-Layer Boehmite
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块状和薄层勃姆石去除-再生磷酸盐水溶液
DOI：
10.1252/jcej.40.598
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发表时间：
2007
影响因子：
0.8
通讯作者：
K. Sotowa
中科院分区：
文献类型：
--
作者：
S. Sugiyama;Hisaaki Ishizuka;Y. Shimizu;K. Sotowa
将市售勃姆石与溶胶-凝胶法制备的相应化合物对磷酸盐水溶液的去除性能进行了比较。结果发现，使用制备的勃姆石时的去除率明显高于使用市售试剂时的去除率。使用制备的勃姆石的去除率受到溶胶-凝胶制备过程中胶溶步骤中添加的酸量的强烈影响。作为勃姆石利用的发展，玻璃板上涂有勃姆石并用于磷酸盐水溶液的去除和再生。水性磷酸盐的去除率取决于浸涂时间和前体溶胶的制备方法。 It was also described that the removed phosphate could be eluted from the coated plate with aqueous ammonium, suggesting that boehmite film can be employed for the continuous removal and regeneration of aqueous phosphate.
The removal properties of aqueous phosphate with commercially available boehmite were compared with those with a corresponding compound prepared by the sol–gel method. It was found that the removal rate when using the prepared boehmite was evidently greater than that using the commercial reagent. The removal rate using the prepared boehmite was strongly influenced by the amount of acid added in the peptization step during the sol–gel preparation. As a development of the boehmite utilization, a glass plate was coated with boehmite and utilized for the removal and regeneration of aqueous phosphate. The removal rate of aqueous phosphate was dependent on the dip-coating times and the preparation method of the precursor sol. It was also described that the removed phosphate could be eluted from the coated plate with aqueous ammonium, suggesting that boehmite film can be employed for the continuous removal and regeneration of aqueous phosphate.