Effects of γ-ray irradiation on the stability and U(Ⅵ) adsorption performance of bentonite colloids

Cheng, Jianfeng; Wang, Ju; Jiang, Qiao; Xie, Jingli; Cao, Shengfei; Zhang, Qi; Gu, Runqiu

doi:10.1016/j.colsurfa.2024.134318

Colloids and Surfaces A: Physicochemical and Engineering Aspect

2024

DOI: 10.1016/j.colsurfa.2024.134318

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Effects of γ-ray irradiation on the stability and U(Ⅵ) adsorption performance of bentonite colloids

Jianfeng Cheng,

Ju Wang,

Qiao Jiang

et al.

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2024

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Cited by 2 publications

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Study of three-dimensional reticulated filtration control agent formed by condensation of A-151 in long-lasting, ultra-high-temperature-resistant, salt-resistant, and filtration-loss-reducing

Guo,

Du,

et al. 2024

Chemical Engineering Journal

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Study of three-dimensional reticulated filtration control agent formed by condensation of A-151 in long-lasting, ultra-high-temperature-resistant, salt-resistant, and filtration-loss-reducing

Guo,

Du,

et al. 2024

Chemical Engineering Journal

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Irradiated Gao Miao Zi Bentonite for Uranium Retention: Performance and Mechanism

Zhang,

Song,

et al. 2024

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Bentonite has been considered as backfill material in the long-term deep geological disposal sites for radioactive waste. The performance of raw and irradiated bentonite based on the retention of radioactive nuclides, such as U(VI), is a critical factor for its application. Herein, the intrinsic features and adsorption behavior of Gao Miao Zi (GMZ) bentonite based on uranyl ions was investigated. In aqueous solutions, bentonite can achieve an adsorption rate of up to 100% for U(VI). The primary mechanism of U(VI) adsorption by GMZ bentonite is ion exchange, supplemented by surface complexation. Strong irradiation can introduce slight structural changes and framework fractures in bentonite, reducing its adsorption capacity for U(VI). This study provides an in-depth analysis of the adverse effects of high doses of radiation (100 kGy) on the microstructure and adsorption properties of bentonite, offering important insights for the safe storage of radioactive waste.

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Effects of γ-ray irradiation on the stability and U(Ⅵ) adsorption performance of bentonite colloids

Cited by 2 publications

References 41 publications

Study of three-dimensional reticulated filtration control agent formed by condensation of A-151 in long-lasting, ultra-high-temperature-resistant, salt-resistant, and filtration-loss-reducing

Study of three-dimensional reticulated filtration control agent formed by condensation of A-151 in long-lasting, ultra-high-temperature-resistant, salt-resistant, and filtration-loss-reducing

Irradiated Gao Miao Zi Bentonite for Uranium Retention: Performance and Mechanism

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