2019
DOI: 10.1039/c9cc06906b
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Deep eutectic solvothermal synthesis of an open framework copper selenidogermanate with pH-resistant Cs+ ion exchange properties

Abstract: Reported here is the deep eutectic solvothermal synthesis of an open framework copper selenidogermanate [NH3CH3]0.75Cu1.25GeSe3 (CuGeSe-1), which shows a pH-resistant Cs+ ion exchange performance (qm = 225.3 mg g−1).

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Cited by 27 publications
(34 citation statements)
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“…SbS-1K was irradiated at 1.2 kGy h −1 for a dose of 100 kGy in the γ irradiation experiment and at 50 kGy h −1 for two different doses of 100 and 200 kGy in the β irradiation experiment. The γ irradiation was conducted using 60 Co source that was provided by Suzhou CNNC Huadong Radiation Co., Ltd., in Jiangsu Province, China. The β irradiation was conducted using electron beams (10 MeV) that were provided by an electron accelerator located in CGN Dasheng Electron Accelerator Co., Ltd., in Jiangsu Province, China.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…SbS-1K was irradiated at 1.2 kGy h −1 for a dose of 100 kGy in the γ irradiation experiment and at 50 kGy h −1 for two different doses of 100 and 200 kGy in the β irradiation experiment. The γ irradiation was conducted using 60 Co source that was provided by Suzhou CNNC Huadong Radiation Co., Ltd., in Jiangsu Province, China. The β irradiation was conducted using electron beams (10 MeV) that were provided by an electron accelerator located in CGN Dasheng Electron Accelerator Co., Ltd., in Jiangsu Province, China.…”
Section: Methodsmentioning
confidence: 99%
“…Further increase of the HCl concentration leads to a partial decomposition (C e Sb = 45.79 ppm in 4 m HCl, 208.94 ppm in 5 m HCl) until the total collapse of the crystalline product occurs at a concentration of 5.5 m (C e Sb = 388.26 ppm, Figure 6f,g). The stability of SbS-1K over such a wide range from alkaline (pH 11) to extremely acidic (3 m HCl) conditions is impressive, which overperforms most of the pH-resistant metal chalcogenide adsorbents represented by (NH 4 ) 4 In 12 Se 20 (2.4 m HCl), [59] KMS-1 (pH 0.7-12), [30] FJSM-SnS (pH 0.7-12.7), [33] CuGeSe-1 (pH 1-12) [60] and AgSnSe-1 (1-12), [40] etc. In addition, SbS-1K shows superior R Cs values of 90.60%, 65.79% and 35.17% at pH 1, pH 0 (1 m HCl) or even in 2 m HCl solution (Figure 6h, Tables S14 and S15, Supporting Information), respectively, even higher than KMS-1 (≈43% pH 0.8) [30] and FJSM-SnS (≈47% at pH 0.7) [33] that tested under similar conditions.…”
Section: Effect Of Ph On the Adsorption And Fantastic Acid Resistancementioning
confidence: 99%
“…Crystalline inorganic metal chalcogenides with supertetrahedral clusters (denoted as Tn, where n is the number of metal sites along the tetrahedron edge) serving as SBUs have been extensively investigated because of their fascinating architectures and the effective integration of porosity with semiconducting properties. [27][28][29][30][31][32] Recently, discrete clusters with uniform size and atomically precise crystal lattice structure have been successfully dispersed into cluster-based quantum-dotlike nanoparticles (also called supraclusters) in solvents, and correlations between the cluster structure and function (such as electrochemical, photocatalytic and photoelectric applications) have been established. [33][34][35][36][37] Although the roles of clusters in crystalline open frameworks remain unclear, the signicance of clusters in these frameworks seems to extend beyond the beauty of a symmetrical structure and apparent functionality as nodes for open framework construction.…”
Section: Introductionmentioning
confidence: 99%
“…25 The DES supplies an ionic environment along with rich hydrogen bonding interactions and hence promotes the solubilization of the starting materials and the subsequent chemical reactions. 27,28 This contributes to a more efficient and faster synthesis for selenidostannate within hours compared to those conducted in neutral, volatile organic solvents (e.g., ethanol and dimethylformamide, DMF). 29,30 Besides, the choline component of DES acts as significant templates and counter cations that account for the construction of honeycomb-like [Sn 3 Se 7 ] n 2n− layers, whose parallel stacking gives the final hybrid of Ch-Sn 3 Se 7 (Figure 2).…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…The Ch-Sn 3 Se 7 precursor was facilely synthesized through the solvothermal approach using a choline chloride–urea (1:2) deep eutectic solvent (DES) as reaction media . The DES supplies an ionic environment along with rich hydrogen bonding interactions and hence promotes the solubilization of the starting materials and the subsequent chemical reactions. , This contributes to a more efficient and faster synthesis for selenidostannate within hours compared to those conducted in neutral, volatile organic solvents (e.g., ethanol and dimethylformamide, DMF). , Besides, the choline component of DES acts as significant templates and counter cations that account for the construction of honeycomb-like [Sn 3 Se 7 ] n 2 n – layers, whose parallel stacking gives the final hybrid of Ch-Sn 3 Se 7 (Figure ). In the crystal lattice, all of the choline templates exhibit the same activation energy for release/decomposition in response to external thermal stimuli, implying that they can be precisely removed upon heating to a certain temperature.…”
Section: Resultsmentioning
confidence: 99%