Research advances on adsorption materials for the purification of radioactive wastewater

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Review

Table 2

Performance and characteristics of composite adsorption materials applied in radioactive wastewater purification.

Adsorbent material	Adsorbed radionuclide	Competing ions	Adsorption capacity (mg/g)	pH	Characteristics	Reference
Carboxymethyl Chitosan Gel	Sr²⁺	Na⁺, H⁺	144.73	7	Simple preparation, good mechanical properties, tunable structure.	[27]
Fibrous Chitosan	Co²⁺	Na⁺, K⁺, Ca2⁺, Mg²⁺	31.3	6	High surface area, large adsorption capacity, good separation performance.	[28]
	Sr²⁺		20.0	7
PA-EHL	Ce(III)	Zn²⁺, K⁺, Ca²⁺, Cu²⁺, Ba²⁺	743.16	4.32	Rich in functional groups, high adsorption capacity, good structural properties, low cost.	[29]
	La(III)		735.60	3.78
PBAFe	Cs⁺	Na⁺, K⁺, Ca²⁺, Mg²⁺	82.90	8–10	High surface area, large adsorption capacity, simple synthesis method.	[21]
Titanium Phosphate (TiP)	Sr²⁺	Mg²⁺, Ca²⁺, K⁺, Na⁺	373.6	5	High surface area and porosity, high adsorption capacity, good chemical stability.	[23]
Ag@ACF Composite	I⁻	OH⁻, CH₃COO⁻, C₅H₇O₅COO⁻, ${SO}_{4}^{2 -}$ ${\mathrm{SO}}_4^{2-}$ , ${Cl}^{-} {HCO}_{3}^{-}$ ${\mathrm{Cl}}^{-}{\mathrm{HCO}}_3^{-}$ , ${CO}_{3}^{2 -}$ ${\mathrm{CO}}_3^{2-}$	372	2	High adsorption capacity, simple preparation, excellent chemical stability.	[22]
alg@PB	Cs⁺	–	136.0	2–10	High adsorption capacity, good chemical stability.	[24]
CAA@MgAlFe	U(Ⅵ)	–	533	12	Fast adsorption rate, wide applicability, simple preparation, stable structure.	[25]
	Cs(I)		58
HPN	U(UO2+ 2)	Ca²⁺, Na⁺, Co²⁺, Zn²⁺, K⁺, Sr²⁺, Ni²⁺, Mg²⁺	–	–	Stable structure, excellent photocatalytic performance, high interface exposure.	[26]

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