{"title":"Preparation of cesium ion sieve composite material and its adsorption properties of Cs+","authors":"Jiumei Chu, Debin Wang, Xue Yang, Mengyu Lin, Dianquan Dong","doi":"10.1016/j.jssc.2025.125327","DOIUrl":"10.1016/j.jssc.2025.125327","url":null,"abstract":"<div><div>In the previous work, our research group adopted sol-gel technology to incorporate trace Zn<sup>2+</sup> into the Ti–O lattice of Cs<sub>2</sub>Ti<sub>6</sub>O<sub>13</sub> to improve the cell structure and prepared zinc-doped titanate precursor material (CZnTO). This precursor is acid-treated to form a zinc-doped protonated titanate (HZnTO). Based on previous studies in our research group, this paper proposed a membrane support and creating technology for preparing powdered zinc-doped titanium-based cesium ion sieves. It made a batch adsorption test to explore the adsorption performance of Cs<sup>+</sup>. The main research contents are as follows: A phase transition synthesis method is used to composite PVDF material with powdered ion sieve HZnTO to form a microporous hydrophobic polymer membrane HZnTO@PVDF. The higher the pH in the solution, the greater its saturated adsorption capacity. The composite membrane maintains good stability in both acidic and alkaline solutions. Compared with the powdered ion sieves, HZnTO@PVDF the adsorption rate is significantly faster, reaching saturated adsorption capacity in about 2 h in 3000 mg/L Cs<sup>+</sup> solution. HZnTO @ PVDF has good cyclic adsorption stability, maintaining 90.33 % of the initial adsorption capacity after five adsorption-desorption cycles. Moreover, after 5 cycles, the composite membrane still maintained the integrity of its original structure.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125327"},"PeriodicalIF":3.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zahra Karami, Alireza Abbasi, Peyman Ghorbani, Samira Zamani
{"title":"Synergistically enhanced selective adsorption of cationic dyes from aqueous solutions using porphyrin-confined zeolitic imidazolate framework","authors":"Zahra Karami, Alireza Abbasi, Peyman Ghorbani, Samira Zamani","doi":"10.1016/j.jssc.2025.125329","DOIUrl":"10.1016/j.jssc.2025.125329","url":null,"abstract":"<div><div>Encapsulation of a free base meso-Tetra(4-carboxyphenyl)porphine ligand (TCPP) into the cavities of zeolitic imidazolate framework (ZIF-8) via the bottle-around-ship (BAS) approach generated an extremely selective reusable biomimetic adsorbent (TCPP@ZIF-8) for the elimination of hazardous cationic organic dyes. Entrapment in the MOF host prevents TCPP aggregation and provides a high surface area and protective environment for better TCPP dispersion, enhancing dye adsorption via electrostatic interaction. The appropriate synthesis of the adsorbent and the stability of the MOF throughout the modification were confirmed by multiple analyses. After being modified with TCPP, the adsorption efficacy of porous ZIF-8 is substantially increased, as seen by the significantly improved methyl violet (MV) cationic dye removal efficiency of TCPP@ZIF-8 (83.46 % and 41.67 mg/g at 10 mg dosage within 15 min) compared to ZIF-8 alone (23.83 % and 11.91 mg/g at 10 mg dosage within 15 min). The kinetic and isotherm studies revealed that adsorption adhered to pseudo-second-order (PSO) kinetics and the Langmuir isotherm, implies that the process is primarily governed by chemisorption and occurs as a monolayer on homogeneous adsorption sites. According to the reusing study, the stability of the adsorbent did not alter during the adsorption process, and the adsorbent could be easily recycled for use in consecutive cycles.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125329"},"PeriodicalIF":3.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of iron-based metal-organic frameworks for the efficient removal of industrial dye: Effect of ligands on morphological and adsorption parameters","authors":"Nitin Kumar , Vanish Kumar , Vinod Kumar Garg","doi":"10.1016/j.jssc.2025.125337","DOIUrl":"10.1016/j.jssc.2025.125337","url":null,"abstract":"<div><div>Recently, the utilization of metal-organic frameworks (MOFs) enhanced the significance of the adsorptive removal of pollutants by several folds. To explore the unmatched potentials of MOFs, MIL-100 & MIL-101 (iron-based MOFs) have been fabricated via a solvothermal process for Orange G dye removal (adsorption-based) from the aqueous system. The adsorption results show that MIL-100 has superior adsorption capacity (357.3 mg/g) in comparison to MIL-101 (206.9 mg/g) via pseudo-second-order kinetics. Moreover, both the adsorbents displayed their effectiveness for the removal of Orange G dye under extreme testing conditions (e.g., varying pH and high salt strength). The interactions between the target dye with the adsorbents have been inferred using three different adsorption isotherm models. Fascinatingly, as per isotherm models, significantly higher q<sub>max</sub> values of 540.5 and 321.5 mg/g were achieved using MIL-100 and MIL-101, respectively. The current study revealed that the ligand type is crucial in deciding the MOF properties and their adsorption capacities.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125337"},"PeriodicalIF":3.2,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhi-Xiong Lin , Zi-Yi Zhu , Yu-Huan Tang , Hui-Zi Li , Fei Wang , Jian Zhang
{"title":"The construction of metal-organic frameworks based on 2-(1-hydroxy-ethyl)-3H-benzoimidazole-5-carboxylic acid","authors":"Zhi-Xiong Lin , Zi-Yi Zhu , Yu-Huan Tang , Hui-Zi Li , Fei Wang , Jian Zhang","doi":"10.1016/j.jssc.2025.125336","DOIUrl":"10.1016/j.jssc.2025.125336","url":null,"abstract":"<div><div>Presented here are two novel metal-organic frameworks (MOFs) synthesized by employing a trifunctional imidazolate derivative, 2-(1-hydroxy-ethyl)-3H-benzoimidazole-5-carboxylic acid (H<sub>2</sub>ebimc) as a ligand. In compound <strong>1</strong>, the Zn atoms and ebimc<sup>2−</sup> ligands were crosslinked to build a wavelike two-dimensional (2D) layer with 3-connected (4.8<sup>2</sup>) topology, with water molecules as terminal ligands coordinated on both sides of the layers. Then, the D-(+)-camphoric acid (H<sub>2</sub>cam) ligand was introduced into the synthesis system to obtain compound <strong>2</strong>. In compound <strong>2</strong>, similar topological layers were formed based on Zn<sub>2</sub>(CO<sub>2</sub>)<sub>3</sub> subunits (SBUs) and then were further pillared by cam<sup>2−</sup> ligands to construct the final three-dimensional (3D) pillar-layered framework. Moreover, compound <strong>2</strong> exhibited high selectivity of CO<sub>2</sub> over N<sub>2</sub> and CH<sub>4</sub>, along with a distinctive framework flexibility triggered by C<sub>2</sub>H<sub>6</sub>. Our results highlight the great potential of H<sub>2</sub>ebimc as a multifunctional ligand for synthesizing MOFs.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125336"},"PeriodicalIF":3.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yu Yang , Xinyi Wang , Xiaoman Zhang, Yuting Yang, Jiangnan Dong, Lin Zhang, Yabing He, Dian Zhao
{"title":"A dual-emissive Ln-MOF as a visual dipicolinic acid sensor of high sensitivity and selectivity","authors":"Yu Yang , Xinyi Wang , Xiaoman Zhang, Yuting Yang, Jiangnan Dong, Lin Zhang, Yabing He, Dian Zhao","doi":"10.1016/j.jssc.2025.125334","DOIUrl":"10.1016/j.jssc.2025.125334","url":null,"abstract":"<div><div>Dipicolinic acid (DPA) is a valuable biomarker for the detection of Bacillus anthracis, but its detection still faces challenges such as enhancing sensitivity and selectivity. Herein, biphenyl-3,3′,5,5′-tetracarboxylic acid (H<sub>4</sub>BPTC), possessing several carboxyl groups, and large conjugated system, was selected as ligand to synthesize a mixed-lanthanide metal-organic framework (MOF), Tb<sub>x</sub>Eu<sub>1−<em>x</em></sub>-BPTC, for an effective DPA sensor. The optimal sample, Eu<sub>0.549</sub>Tb<sub>0.451</sub>-BPTC, demonstrated excellent water and thermal stability. Luminescence investigations revealed Tb<sup>3+</sup> emissions intensified while Eu<sup>3+</sup> emissions dimmed towards addition of DPA. The detection mechanism was due to inner filter effects, inhibition of energy transfer from Tb<sup>3+</sup> to Eu<sup>3+</sup> and chelation by DPA. Eu<sub>0.549</sub>Tb<sub>0.451</sub>-BPTC showed remarkable sensitivity (LOD = 1.68 μM) and excellent selectivity when detecting DPA. To expand the application prospect, Eu<sub>0.549</sub>Tb<sub>0.451</sub>-BPTC was mixed with agarose to form a MOF-based mixed matrix membrane. This flexible and portable membrane can achieve visual detection of DPA by analyzing RGB values using smartphone. This work offers an effective method to ascertain the presence of DPA in practical application scenario.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125334"},"PeriodicalIF":3.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RbEu[AsS4], Rb4Eu[AsS4]2 and CsEu[AsS4]: Three europium(II) thioarsenates(V) with the heavy alkali metals","authors":"Katja Engel, Thomas Schleid","doi":"10.1016/j.jssc.2025.125319","DOIUrl":"10.1016/j.jssc.2025.125319","url":null,"abstract":"<div><div>Three novel europium(II) thioarsenates(V) <figure><img></figure> (<strong>1</strong>), <figure><img></figure> (<strong>2</strong>), and <figure><img></figure> (<strong>3</strong>) were synthesized by using the molten polysulfide-flux method. <figure><img></figure> and <figure><img></figure> crystallize isotypically in the orthorhombic space group <em>Pnma</em> with <span><math><mrow><mi>a</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>1729</mn><mo>.</mo><mn>53</mn><mrow><mo>(</mo><mn>9</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span>, <span><math><mrow><mi>b</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>679</mn><mo>.</mo><mn>18</mn><mrow><mo>(</mo><mn>4</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span>, <span><math><mrow><mi>c</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>670</mn><mo>.</mo><mn>46</mn><mrow><mo>(</mo><mn>4</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span> for (<strong>1</strong>) and <span><math><mrow><mi>a</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>1796</mn><mo>.</mo><mn>48</mn><mrow><mo>(</mo><mn>9</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span>, <span><math><mrow><mi>b</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>686</mn><mo>.</mo><mn>54</mn><mrow><mo>(</mo><mn>4</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span>, <span><math><mrow><mi>c</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>663</mn><mo>.</mo><mn>35</mn><mrow><mo>(</mo><mn>4</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span> for (<strong>3</strong>) with <span><math><mrow><mi>Z</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>4</mn></mrow></math></span>. An attempt to obtain single-phase <figure><img></figure> by changing the molar ratio of the reactants and optimizing the synthesis temperature led to <figure><img></figure> as main product and <figure><img></figure> as a second phase, which crystallizes orthorhombically in the space group <em>Ibam</em> with <span><math><mrow><mi>a</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>913</mn><mo>.</mo><mn>46</mn><mrow><mo>(</mo><mn>5</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span>, <span><math><mrow><mi>b</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>1873</mn><mo>.</mo><mn>08</mn><mrow><mo>(</mo><mn>11</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span>, <span><math><mrow><mi>c</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>1010</mn><mo>.</mo><mn>23</mn><mrow><mo>(</mo><mn>6</mn><mo>)</mo></mrow><mspace></mspace><mi>pm</mi></mrow></math></span> for <span><math><mrow><mi>Z</mi><mspace></mspace><mo>=</mo><mspace></mspace><mn>4</mn></mrow></math></span>. All crystal structures contain isolated <figure><img></figure> anions with sulfur corners and edges building <figure><img></figure> -centered <figure><img></figure> polyhedra, whose condensation leads to <span><math><mfrac><mrow><mn>2</mn></mrow><","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125319"},"PeriodicalIF":3.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143687953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xuezhen Zhai, Xiaohong Chen, Yongqi Wu, Xuzhe Wang, Cui Shang, Lamei Zhang, Chengzhou Zhao, Huawei Zhang, Jimin Shang, Dewei Liu
{"title":"Regulating zinc storage and transport characteristics of VO2(B) cathodes via cobalt introduction","authors":"Xuezhen Zhai, Xiaohong Chen, Yongqi Wu, Xuzhe Wang, Cui Shang, Lamei Zhang, Chengzhou Zhao, Huawei Zhang, Jimin Shang, Dewei Liu","doi":"10.1016/j.jssc.2025.125333","DOIUrl":"10.1016/j.jssc.2025.125333","url":null,"abstract":"<div><div>The VO<sub>2</sub>(B) cathode materials maintain high stability during the zinc ion embedding/removal process, making it a research hotspot in positive electrode materials for water-based zinc ion batteries. However, its poor ion diffusion kinetics and intrinsic semiconductor properties have become the main reasons limiting the enhancement of the specific capacity and rate performance. Herein, the function of Co-doping on the microstructure, morphological characteristics, transport characteristics and electrochemical performances of the Co<sub><em>x</em></sub>V<sub>1-<em>x</em></sub>O<sub>2</sub>(B) nanorods were comparatively investigated. The Co<sub>0.05</sub>V<sub>0.95</sub>O<sub>2</sub>(B) cathode has the highest specific capacity and unmatched cycle stability. The optimized electrochemical performance was mainly due to the synergistic optimization of grain distortion, grain size and oxygen vacancy inside the lattice. The electrochemical kinetics results show that the Co<sub>0.05</sub>V<sub>0.95</sub>O<sub>2</sub>(B) cathodes were capacitor and battery hybrid characteristics. The above conclusions provide a good idea and experimental verification for applying VO<sub>2</sub>(B) cathode in the water-based zinc ion batteries market.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125333"},"PeriodicalIF":3.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"From formation to functionality: Insights into mesocrystal development and applications","authors":"Akash Marsalin, Rajaboopathi Mani","doi":"10.1016/j.jssc.2025.125331","DOIUrl":"10.1016/j.jssc.2025.125331","url":null,"abstract":"<div><div>Mesocrystals, as a novel class of mesostructured materials ranging from few nanometers to micrometers in size, have attracted significant interest due to their unique physicochemical properties, including high crystallinity, uniform porosity, and hierarchical structures. These attributes make them highly versatile for various applications such as catalysis, biomedical technologies, energy storage, sensors, and terahertz generation. Understanding their formation and classification is a key to maximizing their potential for different applications. This mini review explored the various formation mechanisms of mesocrystals and how they were categorized based on structural arrangement and morphological characteristics. Subsequently, the various characterization techniques such as SAXS, WAXS, and <em>in situ</em> techniques to confirm the mesocrystal formation were discussed. We also addressed the major challenges such as controlled growth, stability, scalability, and reproducibility by highlighting their importance in advancing the synthesis methods. Additionally, a concise discussion on utilizing DFT and simulation to understand and model mesocrystals for optimizing their properties for specific applications has provided. Some of the key applications, including mesocrystals role in enhancing catalytic activity, electrical conductivity, and enabling terahertz generation, were discussed in detail. By consolidating the current understanding of mesocrystal formation and applications, this review focused to provide a foundation for future research, addressing the challenges and opportunities to utilize their potential in diverse scientific domains.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125331"},"PeriodicalIF":3.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiayu Li, Lun Zhao, Ziyun Wang, Guanying Song, Hongwei Jing, Hang Zhou, Zhiheng Xu, Hang Yin, Shiyu Yan
{"title":"Synthesis of two novel cobalt-based coordination polymers and their application in photocatalytic CO2 reduction","authors":"Jiayu Li, Lun Zhao, Ziyun Wang, Guanying Song, Hongwei Jing, Hang Zhou, Zhiheng Xu, Hang Yin, Shiyu Yan","doi":"10.1016/j.jssc.2025.125335","DOIUrl":"10.1016/j.jssc.2025.125335","url":null,"abstract":"<div><div>In this paper, two novel cobalt-based coordination polymers named [Co<sub>3</sub>(H<sub>2</sub>L)<sub>2</sub> (bimy) (H<sub>2</sub>O)<sub>2</sub>]<sub>n</sub> (compound <strong>1</strong>) and {[Co<sub>2</sub>(H<sub>3</sub>L) (bib)<sub>2</sub>(H<sub>2</sub>O)<sub>3</sub>]·(H<sub>2</sub>O)}<sub>n</sub> (compound <strong>2</strong>) were synthesized under hydrothermal conditions. The structure of them was characterized by powder X-ray diffraction, single crystal X-ray diffraction, elemental analysis, thermogravimetric analysis, XPS test, SEM test, BET test and infrared analysis. Subsequently, their potential application in photocatalytic CO<sub>2</sub> reduction was systematically explored. The results showed that both compound <strong>1</strong> and compound <strong>2</strong> had good photocatalytic CO<sub>2</sub> reduction performance. When the two compounds were used as catalysts, under the optimal reaction conditions, the generation rates of the reduced products CO was 60.2571 μmol g<sup>−1</sup>·h<sup>−1</sup>and 56.4035 μmol g<sup>−1</sup> h<sup>−1</sup>, respectively. Both of them had good stability because their structure did not change before and after the experiment.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125335"},"PeriodicalIF":3.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maoling Wu, Keding Li, Bowen Zheng, Lin Zhang, Xuan Luo
{"title":"In situ synthesis of ZIF-8 on acid-activated kaolin composite for highly efficient U(VI) removal","authors":"Maoling Wu, Keding Li, Bowen Zheng, Lin Zhang, Xuan Luo","doi":"10.1016/j.jssc.2025.125317","DOIUrl":"10.1016/j.jssc.2025.125317","url":null,"abstract":"<div><div>A novel composite, ZIF-8@AK, synthesized via in situ synthesis zeolitic imidazolate framework-8 (ZIF-8) on acid-activated kaolin (AK), was served as an adsorbent for U(VI) removal. The morphological characteristics and chemical composition of ZIF-8@AK were obtained through characterizations. Compared to KL, ZIF-8@AK possessed more functional groups and rougher surface with ordered pore structure, which supplied more active sites to adsorb U(VI), thus resulting in better U(VI) removal performances. Specially, the U(VI) separation capacity on ZIF-8@AK was up to 733.4 mg/g, much higher than that of KL (230.9 mg/g). Meanwhile, ZIF-8@AK still exhibited favorable recoverability with the separation rate of 89.7 % at the fifth cycle. Based on the conclusions of isotherm and kinetic models, the U(VI) separation process on ZIF-8@AK was mostly dependent on single-layer chemical reaction. Combining the results of SEM, FTIR, XRD and XPS for ZIF-8@AK before and after U(VI) separation, electrostatic interaction, coordination interaction and hydrogen bonds were the main interaction between ZIF-8@AK and uranyl. To sum up, this work supplied an appealing composite with high adsorption capacity and good recoverability, which was promising to be used for wastewater disposal.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125317"},"PeriodicalIF":3.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}