Synthesis of ZrTiVPO4 Embedded Calcium Alginate Beads for Efficient Sorption of 152+154Eu, 133Ba, and 134 Cs from Liquid Radioactive Waste Effluents: A Comprehensive Study

被引：0

作者：

Mahrous, Sara S. ^{[1
]}

Mansy, Muhammad S. ^{[2
,4
]}

Breky, Mohamed M. E. ^{[3
]}

机构：

[1] Egyptian Atom Energy Author, Environm Radioact Pollut Dept, Hot Labs & Waste Management Ctr, Cairo, Egypt

[2] Egyptian Atom Energy Author, Radioact Waste Management Unit, Hot Labs & Waste Management Ctr, Cairo, Egypt

[3] Egyptian Atom Energy Author, Radiat Protect & Safety Dept, Hot Labs & Waste Management Ctr, Cairo, Egypt

[4] Egyptian Atom Energy Author, Analyt Chem & Control Dept, Hot Labs & Waste Management Ctr, Cairo, Egypt

来源：

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS | 2025年

关键词：

Alginate; Organic/inorganic composites; Sorption mechanism; Radionuclides; Eu152+154; Ba-133; and Cs-134; ZIRCONIUM TITANIUM PHOSPHATE; AQUEOUS-SOLUTIONS; CESIUM REMOVAL; METAL-IONS; ADSORPTION; WATER; RADIONUCLIDES; ADSORBENTS; SEPARATION; NANOCOMPOSITE;

D O I：

10.1007/s10904-024-03536-z

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The present work demonstrates a comprehensive study for efficiently removing some hazardous radionuclides from liquid radioactive waste using zirconium titanium vanadium phosphate/alginate (ZrTiVPO4/Alg) composite. A composite material of (ZrTiVPO4/Alg) was synthesized by the sol-gel technique and subsequently examined utilizing FT-IR, SEM, XRD, EDX, BET surface area, and TGA analyses. (ZrTiVPO4/Alg) composite beads were tested for sorption of Eu152+154, Ba-133, and Cs-134 from radioactive liquid waste. Various parameters influencing the sorption of Eu152+154, Ba-133, and Cs-134 have been investigated, such as the contact time, pH value, temperature, and initial concentration. The highest percent removal was achieved at pH 4 for Eu152+154 and pH 6 for Ba-133, and Cs-134. The equilibrium time for the sorption process was attained at 90 min. An investigation was conducted on the isotherms and kinetics of ZrTiVPO4/Alg sorption of Eu152+154, Ba-133, and Cs-134. The Freundlich isotherm model provides a better fit (R-2 = 0.988) than the Langmuir model (R-2 = 0.967), suggesting a multilayer adsorption process on the ZrTiVPO4/Alg composite surface with a maximum adsorption capacity (Q(max)) 30.3, 29.4, and 21.6 mg/g for Eu152+154, Ba-133, and Cs-134 respectively. Moreover, the adsorption kinetics studies indicate that the process follows the pseudo-second-order model. Finally, a chromatographic column study has been carried out to confirm the findings obtained from the batch experiments. The column analysis revealed that the breakthrough capacities for Eu152+154, Ba-133, and Cs-134 are as follows: 23, 19, and 12 mg/g, respectively.

引用

页数：20