An effective uranium removal using diversified synthesized cross-linked chitosan bis-aldehyde Schiff base derivatives from aqueous solutions

被引：16

作者：

Hamed, Amira ^{[1
]}

Orabi, Ahmed ^{[2
]}

Salem, Hend ^{[2
]}

Ismaiel, Doaa ^{[2
]}

Saad, Gamal ^{[1
]}

Abdelhamid, Ismail ^{[1
]}

Elwahy, Ahmed ^{[1
]}

Elsabee, Maher ^{[1
]}

机构：

[1] Cairo Univ, Fac Sci, Chem Dept, Cairo 12613, Egypt

[2] Nucl Mat Author, POB 530, Cairo, Egypt

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2023年 / 30卷 / 49期

关键词：

Cross-linked chitosan; Adsorption; Uranium; Removal; Waste solutions; SELECTIVE REMOVAL; ION ADSORPTION; U(VI); EXTRACTION; COMPOSITE; EFFICIENT; SORPTION; SILICA; ACID; PRECONCENTRATION;

D O I：

10.1007/s11356-022-23856-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Three new cross-linked chitosan derivatives were yielded through intensification of chitosan with diverse types of bis-aldehydes. The prepared cross-linked chitosan was characterized by FTIR, H-1 NMR, XRD, and TGA techniques. TGA indicated an improvement in thermal stability of the cross-linked chitosan compared with pure chitosan. Batch adsorption experiments showed that the three novel cross-linked chitosan bis-aldehyde derivatives possessed good adsorption capacity against U(VI) in the order of BFPA > BFB > BODB (adsorption capacity of the three adsorbents for U(VI) reaches 142, 124, and 114 mg/g respectively) and the adsorption isotherm and kinetic were well described by the Langmuir and the pseudo-second-order kinetic model, respectively. In addition, the prepared cross-linked chitosan bis-aldehyde derivatives were examined as U(VI) catcher from waste solutions.

引用

页码：106790 / 106811

页数：22

共 73 条

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