U(VI) adsorption by one-step hydrothermally synthesized cetyltrimethylammonium bromide modified hydroxyapatite-bentonite composites from phosphate‑carbonate coexisted solution

Liu, Jun; Shi, Shilong; Li, Chao; Hong, Xu; Gu, Zhixing; Li, Fēi; Zhai, Juan; Zhang, Qingxian; Liao, Jiali; Liu, Ning; Liu, Chunhai

doi:10.1016/j.clay.2021.106027

Cited by 24 publications

(10 citation statements)

References 36 publications

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“…The most commonly used clays for these applications include BNTs and kaolins. Biomimetic precipitation of CaPs in situ for the preparation of CaPCCs is becoming increasingly relevant [46,[49][50][51][52][53][54][55][56][57][58][59]. Another alternative is the use of CaPs prepared from biowastes [60], such as animal bones [61][62][63] or eggshells [64].…”

Section: Environmental Applicationsmentioning

confidence: 99%

“…Another alternative is the use of CaPs prepared from biowastes [60], such as animal bones [61][62][63] or eggshells [64]. CaPCCs are used for the adsorption of inorganic [46,[49][50][51][52][53]55,59,61,62] and organic [56][57][58]63,64] pollutants, both in cationic [46,[50][51][52][53]55,62] and anionic [49,59,61] form.…”

Section: Environmental Applicationsmentioning

confidence: 99%

“…The biomimetic approach can also be used when clays need to be modified with organic surfactants. Liu et al [46] have synthesised cetyltrimethylammonium bromide (CTAB)-modified HA-bentonite (BNT) composites using a one-step hydrothermal method. Although the intercalation of CTAB into the BNT interlayer space changes the charges from negative to positive and the properties from hydrophilic to hydrophobic, HA was successfully precipitated by Liu et al [46].…”

mentioning

confidence: 99%

“…Liu et al [46] have synthesised cetyltrimethylammonium bromide (CTAB)-modified HA-bentonite (BNT) composites using a one-step hydrothermal method. Although the intercalation of CTAB into the BNT interlayer space changes the charges from negative to positive and the properties from hydrophilic to hydrophobic, HA was successfully precipitated by Liu et al [46]. The fact that clays promote the precipitation of CaPs was confirmed by Paluszkiewicz et al [47].…”

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confidence: 99%

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Calcium Orthophosphate–Clay Composites—Preparation, Characterisation, and Applications: A Review

Šupová

2024

Minerals

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Calcium orthophosphates and clays and their composites are one of the most important groups in the field of new, modern, and technologically advanced materials that are accessible, inexpensive, and environmentally friendly. This review provides a summary of recent research on calcium orthophosphate–clay composites, their preparation, characterisation, and use in various applications. An introduction to the subject is followed by a detailed description of the chemical and physical properties of calcium orthophosphates, clays, and clay minerals. This is followed by a general summary of preparation methods for calcium orthophosphate–clay composites. Particular attention is paid to the description of individual applications, i.e., environmental applications, biomaterials science (tissue engineering, pharmacology), and other emerging applications. Finally, future perspectives are summarised and discussed.

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Section: Environmental Applicationsmentioning

confidence: 99%

Section: Environmental Applicationsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Calcium Orthophosphate–Clay Composites—Preparation, Characterisation, and Applications: A Review

Šupová

2024

Minerals

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“…After U(VI) removal, the position and relative ratio of the binding energy of these O donors changed and the binding energies of -OH and C = O/P = O were moved to relatively high values owing to the decrease of electron cloud density surrounding O atoms (Fig. 9c), illustrating that the oxygen-containing groups were the essential active sites for removing U(VI) (Liu et al 2021;Zheng et al 2020). The binding energy of P2p shifted from 132.8 to 133.1 eV (Fig.…”

Section: Xpsmentioning

confidence: 99%

Design of a renewable hydroxyapatite-biocarbon composite for the removal of uranium(VI) with high-efficiency adsorption performance

Xiong

Ding

Xie

et al. 2022

Biochar

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The hydroxyapatite-loaded swine manure derived-biocarbon was successfully prepared by pyrolysis method for the adsorption of uranium(VI). The results of the adsorption experiments displayed that the adsorption behaviors for uranium(VI) of biocarbon did almost not depend on the interfering ions except Al3+, Ca2+ and CO32−, showing the high selectivity of the composites for uranium(VI). The maximum static and dynamic removal capacity of the hydroxyapatite-biocarbon composites to uranium(VI) were 834.8 and 782.8 mg/g (pH = 3, m/V = 0.1 g/L and T = 298 K), far exceeding other reported biocarbon and hydroxyapatite materials, which indicated that the hydroxyapatite-biocarbon composites possessed an application potential in adsorption. After five cycles of adsorption–desorption processes, the removal efficiency of the hydroxyapatite-biocarbon composite for uranium(VI) was 93.2% (Ci = 5 mg/L, pH = 3, m/V = 0.1 g/L and T = 298 K), revealing that the composite had excellent stability and reusability. Moreover, the capture mechanisms of the hydroxyapatite-biocarbon composite for uranium(VI) included ion exchange and complexation, which was ascribed to the ample active adsorption sites (–OH and PO43−). Therefore, the hydroxyapatite-loaded swine manure derived-biocarbon would be a potential material to effectually separate uranium(VI) from solution. Graphical abstract

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Highly efficient removal of uranium (VI) from aqueous solutions by amino functionalized bentonite

Xie,

Gu,

Jiang

et al. 2024

J Radioanal Nucl Chem

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U(VI) adsorption by one-step hydrothermally synthesized cetyltrimethylammonium bromide modified hydroxyapatite-bentonite composites from phosphate‑carbonate coexisted solution

Cited by 24 publications

References 36 publications

Calcium Orthophosphate–Clay Composites—Preparation, Characterisation, and Applications: A Review

Calcium Orthophosphate–Clay Composites—Preparation, Characterisation, and Applications: A Review

Design of a renewable hydroxyapatite-biocarbon composite for the removal of uranium(VI) with high-efficiency adsorption performance

Highly efficient removal of uranium (VI) from aqueous solutions by amino functionalized bentonite

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