Rhodamine-B modified silica for uranium(VI) extraction from aqueous waste samples

被引：10

作者：

Ali, Amr Hamdi ^{[1
]}

Nouh, Elsaid ^{[2
]}

机构：

[1] Nucl Mat Author, Reactors Mat Treatment, Cairo, Egypt

[2] Nucl Mat Author, Geol Isotops, Cairo, Egypt

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2019年 / 54卷 / 04期

关键词：

Silica; rhodamine-B; uranium; solid phase extraction; SOLID-PHASE EXTRACTION; METAL-IONS; SORPTION BEHAVIOR; AMBERLITE XAD-4; CHELATING RESIN; SPECTROPHOTOMETRIC DETERMINATION; EXCHANGE-RESIN; TRACE-METALS; PRECONCENTRATION; SEPARATION;

D O I：

10.1080/01496395.2018.1512620

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Silica modified with rhodamine-B has been synthesized, characterized and used for solid phase extraction (SPE) of uranium(VI) (U(VI)) from aqueous waste solutions. Adsorption efficiency was influenced by various parameters, which have been investigated such as solution pH, shaking time, initial concentration, adsorbent dose and possible competing ions. The study showed that uranium adsorption was found to be quantitative at pH 5. The adsorption percentage of U(VI) was found to be 94% at the optimum conditions. Desorption conditions were also examined. About 99% of uranium loaded on modified silica was desorbed by 6% of HCl. The method was applicable for removal of uranium from natural samples.

引用

页码：602 / 614

页数：13

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