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Yang W, Zhou Y, Song J, Li Y, Gong T. A Novel Approach for Preparing Sepiolite Micron Powder Based on Steam Pressure Changes. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3574. [PMID: 39063866 PMCID: PMC11278942 DOI: 10.3390/ma17143574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/09/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
As a common method for preparing micron powder in industrial operations, the mechanical extrusion method simply pursues the particle size without considering the microstructure characteristics of sepiolite, which leads to problems such as bundles of sepiolite not being effectively dispersed, and thus the disruption of fibers is inevitably caused. In this work, a new micronization method for disaggregating these bundles while preserving the original structural integrity of the fibers is proposed based on steam pressure changes. The effects of steam pressure changes on the particle size distribution, microstructure, and properties of treated sepiolite are studied using X-ray fluorescence spectrometer (XRF), X-ray diffractometer (XRD), Field Emission Scanning Electron Microscopy (FESEM), Transmission Electron Microscopy (TEM), and a specific surface area and aperture analyzer (BET). The experimental results show that the particle size of sepiolite powder depends greatly on steam pressure, and sepiolite powder with mass ratio of 91.6% and a particle size D97 of 21.27 μm is obtained at a steam pressure of 0.6 MPa. Compared to the sepiolite after mechanical extrusion, the sepiolite treated with steam pressure changes can maintain the integrity of its crystalline structure. The specific surface area of sepiolite enhanced from 80.15 m2 g-1 to 141.63 m2 g-1 as the steam pressure increased from 0.1 to 0.6 MPa, which is about 1.6 times that of the sample treated with mechanical extrusion.
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Affiliation(s)
- Wenjia Yang
- College of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China; (W.Y.); (J.S.); (Y.L.); (T.G.)
| | - Youhang Zhou
- College of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China; (W.Y.); (J.S.); (Y.L.); (T.G.)
- Engineering Research Center of Complex Tracks Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Jialin Song
- College of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China; (W.Y.); (J.S.); (Y.L.); (T.G.)
| | - Yuze Li
- College of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China; (W.Y.); (J.S.); (Y.L.); (T.G.)
| | - Tianyu Gong
- College of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China; (W.Y.); (J.S.); (Y.L.); (T.G.)
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2
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Yang Y, Wang X, Li Y, Mu B, Yang F, Wang A, Liu X. The hemostatic performance and mechanism of palygorskite with structural regulate by oxalic acid gradient leaching. Biomed Mater 2024; 19:035045. [PMID: 38636501 DOI: 10.1088/1748-605x/ad407a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/18/2024] [Indexed: 04/20/2024]
Abstract
Palygorskite (Pal) is a naturally available one-dimensional clay mineral, featuring rod-shaped morphology, nanoporous structure, permanent negative charges as well as abundant surface hydroxyl groups, exhibiting promising potential as a natural hemostatic material. In this study, the hemostatic performance and mechanisms of Pal were systematically investigated based on the structural regulate induced by oxalic acid (OA) gradient leaching from perspectives of structure, surface attributes and ion release.In vitroandin vivohemostasis evaluation showed that Pal with OA leaching for 1 h exhibited a superior blood procoagulant effect compared with the raw Pal as well as the others leached for prolonging time. This phenomenon might be ascribed to the synergistic effect of the intact nanorod-like morphology, the increase in the surface negative charge, the release of metal ions (Fe3+and Mg2+), and the improved blood affinity, which promoted the intrinsic coagulation pathway, the fibrinogenesis and the adhesion of blood cells, thereby accelerating the formation of robust blood clots. This work is expected to provide experimental and theoretical basis for the construction of hemostatic biomaterials based on clay minerals.
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Affiliation(s)
- Yinfeng Yang
- The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, People's Republic of China
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Xiaomei Wang
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Yalong Li
- The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, People's Republic of China
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Bin Mu
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Fangfang Yang
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Aiqin Wang
- Key Laboratory of Clay Minerals of Gansu Province, Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Xinyue Liu
- The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, People's Republic of China
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Montini D, Cara C, D’Arienzo M, Di Credico B, Mostoni S, Nisticò R, Pala L, Scotti R. Recent Advances on Porous Siliceous Materials Derived from Waste. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5578. [PMID: 37629869 PMCID: PMC10456868 DOI: 10.3390/ma16165578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/01/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023]
Abstract
In recent years, significant efforts have been made in view of a transition from a linear to a circular economy, where the value of products, materials, resources, and waste is maintained as long as possible in the economy. The re-utilization of industrial and agricultural waste into value-added products, such as nanostructured siliceous materials, has become a challenging topic as an effective strategy in waste management and a sustainable model aimed to limit the use of landfill, conserve natural resources, and reduce the use of harmful substances. In light of these considerations, nanoporous silica has attracted attention in various applications owing to the tunable pore dimensions, high specific surface areas, tailorable structure, and facile post-functionalization. In this review, recent progress on the synthesis of siliceous materials from different types of waste is presented, analyzing the factors influencing the size and morphology of the final product, alongside different synthetic methods used to impart specific porosity. Applications in the fields of wastewater/gas treatment and catalysis are discussed, focusing on process feasibility in large-scale productions.
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Affiliation(s)
- Daniele Montini
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Claudio Cara
- Fluorsid S.p.A., Strada Macchiareddu 2a, 09032 Assemini, Italy; (C.C.); (L.P.)
| | - Massimiliano D’Arienzo
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Barbara Di Credico
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Silvia Mostoni
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Roberto Nisticò
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
| | - Luca Pala
- Fluorsid S.p.A., Strada Macchiareddu 2a, 09032 Assemini, Italy; (C.C.); (L.P.)
| | - Roberto Scotti
- Department of Materials Science, University of Milano-Bicocca, INSTM, Via R. Cozzi 55, 20125 Milano, Italy; (D.M.); (M.D.); (B.D.C.); (S.M.)
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Xu L, Bai T, Yi X, Zhao K, Shi W, Dai F, Wei J, Wang J, Shi C. Polypropylene fiber grafted calcium alginate with mesoporous silica for adsorption of Bisphenol A and Pb 2. Int J Biol Macromol 2023; 238:124131. [PMID: 36958444 DOI: 10.1016/j.ijbiomac.2023.124131] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 02/28/2023] [Accepted: 03/18/2023] [Indexed: 03/25/2023]
Abstract
Polypropylene grafted calcium alginate with mesoporous silica (PP-g-CaAlg@SiO2) for adsorbing Bisphenol A (BPA) and Pb2+ was prepared by calcium chloride (CaCl2) crosslinking and hydrochloric acid solution treatment. The PP-g-CaAlg@SiO2 was characterized by SEM, TEM, BET, XRD, FTIR and TG. PP-g-CaAlg@SiO2 exhibited excellent adsorption capacity for BPA and Pb2+, because the formation of reticulated nanorod structure increased its specific surface area. Subsequently, the adsorption behaviours of BPA and Pb2+, including adsorption isotherms and adsorption kinetics, were investigated. Afterward, isothermal titration calorimetry (ITC) and molecular dynamics (MD) simulation were performed to explore the adsorption mechanism. The results indicated that hydrogen bonding played the leading role in the adsorption of BPA, while the bonding of Pb2+ to carboxyl group binding sites was the focus of Pb2+ adsorption. In addition, the adsorption capacity of PP-g-CaAlg@SiO2 was stable over 10 cycles.
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Affiliation(s)
- Lijing Xu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Tian Bai
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xinzhun Yi
- School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Kongyin Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Wenxiong Shi
- Institute for New Energy Materials and Low-Carbon Technologies, Tianjin University of Technology, Tianjin, 300387, China
| | - Fengying Dai
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Junfu Wei
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Jie Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Ce Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 300387, China
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Zhu Y, Li S, Mu B, Yang H, Wu L, Wang Q, Wang A. Twin-screw extrusion synthesis of low-cost cobalt ferrite ceramic pigments using natural mixed-dimensional palygorskite clay. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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6
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Liu Y, Xu L, Wang Q, Zou T, Cao C, Fang Q, Zhang N, Wang Y. Zirconium-modified attapulgite was used for removing of Cr(vi) in aqueous solution. OPEN CHEM 2022. [DOI: 10.1515/chem-2022-0251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Abstract
This work fabricated the zirconium-modified attapulgite (Zr@ATP) for removing Cr(vi) ions in aqueous solutions. According to X-ray diffraction, scanning electron microscopy, TEM, Fourier transform infrared, and X-ray photoelectron spectroscopy analyses, Zr was successfully grafted onto the attapulgite rod surface. Cr(vi) adsorption onto Zr@ATP surface fitted well with the Langmuir isotherm and pseudo-second-order kinetic models, which suggested that the adsorption is primarily chemisorption. When the pH of the aqueous solution is 3, Zr@ATP achieved the highest Cr(vi) absorption, of about 32.84 mg/g. Density functional theory studies revealed that the hydroxyl functional group introduced through the modification process supplies more active sites to form the hydrogen bond with
CrO
4
2
−
{\text{CrO}}_{4}^{2-}
and
HCrO
4
−
{\text{HCrO}}_{4}^{-}
.
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Affiliation(s)
- Yani Liu
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou , 730070 , P.R. China
| | - Lei Xu
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou , 730070 , P.R. China
| | - Qingyun Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Kaiyuan Biology Technology Develop Centre, Hexi University , Zhangye , 734000 , P.R. China
| | - Tong Zou
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou , 730070 , P.R. China
| | - Cheng Cao
- College of Chemistry and Chemical Engineering, Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Kaiyuan Biology Technology Develop Centre, Hexi University , Zhangye , 734000 , P.R. China
| | - Qiqi Fang
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou , 730070 , P.R. China
| | - Nan Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou , 730070 , P.R. China
| | - Yongcheng Wang
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou , 730070 , P.R. China
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7
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Effect of dissolved silicate on the degradation of sulfamethoxazole by nZVI@D201 nanocomposite. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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8
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In-situ synthesis of ultra-small Ni nanoparticles anchored on palygorskite for efficient reduction of 4-nitrophenol. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Zhang H, Yang F, Zhang Q, Hui A, Wang A. Structural Evolution of Palygorskite as the Nanocarrier of Silver Nanoparticles for Improving Antibacterial Activity. ACS APPLIED BIO MATERIALS 2022; 5:3960-3971. [PMID: 35831238 DOI: 10.1021/acsabm.2c00482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The carrier performance of palygorskite (Pal) can be significantly affected by its structure, morphology, and activity, which was regulated by controlling the dissolution degree of the metal-oxygen octahedron of raw Pal (RPal) under the action of oxalic acid (OA) in this study. The RPal and OA-leached RPal (OPal) then served as supports for immobilizing silver nanoparticles (AgNPs) to form RPal/AgNPs and OPal/AgNPs antibacterial nanocomposites. The structural and morphological characterizations were used to confirm the dispersion uniformity of AgNPs on the RPal and OPal nanorods, and antibacterial experiments were conducted to evaluate the performance of as-prepared composites and also investigate their antibacterial mechanism. The results showed that OPal-48h (OA leaching for 48 h) loaded with AgNPs (OPal-48h/AgNPs) possesses the most excellent and broad-spectrum antibacterial properties, where its minimum inhibitory concentration values against E. coli, S. aureus, ESBL-E. coli, and MRSA reached 0.25, 0.125, 0.25, and 0.5 mg/mL, respectively, which are mainly attributed to the optimal balance between surface activity and structural stability of OPal-48h that maximally increased its dispersibility and active sites, therefore contributing to the in situ formation of monodisperse AgNPs on the nanorods of OPal-48h.
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Affiliation(s)
- Hong Zhang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Fangfang Yang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Qian Zhang
- Laboratory Medicine Center, Lanzhou University Second Hospital, Lanzhou 730030, PR China
| | - Aiping Hui
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Aiqin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
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Li Y, Tian G, Chen B, Liang J. Self-templating construction of flower-like mesoporous magnesium silicate composites from sepiolite for high-efficiency adsorption of aflatoxin B1. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120953] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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11
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One-step efficient separation of heavy/light oils, dyes and water by simple filtration with a 3D architecture of functional mesh and sisal fiber felt. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Zhao F, Zhang Y, Zheng Z, Mu B. Synthesis of an absorption material based on oil shale semi-coke: Discussion to adsorption mechanism and corresponding site energy distribution analysis. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Ejtemaei M, Sadighi S, Rashidzadeh M, Khorram S, Back JO, Penner S, Noisternig MF, Salari D, Niaei A. Investigating the Cold Plasma Surface Modification of Kaolin- and Attapulgite-Bound Zeolite A. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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14
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Potential of oxalic acid leached natural palygorskite-rich clay as multidimensional nanofiller to improve polypropylene. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.10.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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15
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Naidu KCB, Kumar NS, Banerjee P, Reddy BVS. A review on the origin of nanofibers/nanorods structures and applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:68. [PMID: 34117944 PMCID: PMC8197713 DOI: 10.1007/s10856-021-06541-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 05/30/2021] [Indexed: 05/11/2023]
Abstract
In this review work, we highlight the origin of morphological structures such as nanofibers/nanorods in case of various materials in nano as well as bulk form. In addition, a discussion on different cations of different ionic radii and other intrinsic factors is provided. The materials (ceramic titanates, ferrites, hexaferrites, oxides, organic/inorganic composites, etc.,) exhibiting the nanofibers/nanorods like morphological structures are tabulated. Furthermore, the significance of nanofibers/nanorods obtained from distinct materials is elucidated in multiple scientific and technological fields. At the end, the device applications of these morphological species are also described in the current technology. The nucleation and growth mechanism of α-MnO2 nanorods using natural extracts from Malus domestica and Vitis vinifera [3].
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Affiliation(s)
- K Chandra Babu Naidu
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India.
| | - N Suresh Kumar
- Department of Physics, JNTUA, Anantapuramu, 515002, Andhra Pradesh, India
| | - Prasun Banerjee
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India
| | - B Venkata Shiva Reddy
- Department of Physics, GITAM Deemed to be University, Bangalore, 562163, Karnataka, India
- Department of Physics, The National College, Bagepalli, 561207, Karnataka, India
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Zhang W, Qian L, Chen Y, Ouyang D, Han L, Shang X, Li J, Gu M, Chen M. Nanoscale zero-valent iron supported by attapulgite produced at different acid modification: Synthesis mechanism and the role of silicon on Cr(VI) removal. CHEMOSPHERE 2021; 267:129183. [PMID: 33326899 DOI: 10.1016/j.chemosphere.2020.129183] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/20/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
The attapulgite of different morphologies and mineral compositions were successfully obtained following the treatment by HCl and HF with different concentrations. Variations of morphologies, elemental and mineral components of the pristine and modified attapulgite were investigated and assessed in detail by a series of characterization methods. The SEM-EDS results indicated significant variations on the contents and morphologies of silicon after acid modification. The Cr(VI) removal efficiencies under pristine and modified attapulgite-supported nZVI composites were evaluated with the removal rate in case of 0.5HAT-nZVI being 69.2% more superior than that of 6FAT-nZVI. The reaction kinetic is well fitted with pseudo second order kinetics model. The correlation analysis indicated that Cr(VI) removal efficiency was positively correlated with the content of active silicon in the attapulgite-nZVI composites (R2 = 0.979∗∗). Additionally, the reduction of Cr(VI) is more likely to occur in silicon-rich composites based on the analysis of XPS spectra and Cr concentration changes, which were mainly attributed to the enhanced Si-O-Fe coupling mediated by silicon. Attapulgite with more exposure sites of silicon enhanced the Cr(VI) reduction process and promoted crystallization of the reaction products. Simultaneously, the nZVI consumption caused by oxidation and aggregation were improved by silicon in attapulgite. It is concluded that silicon played a significant role on Cr(VI) removal through the reductive precipitation by Si-O-Fe coupling.
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Affiliation(s)
- Wenying Zhang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jiangsu Engineering Laboratory for Soil and Groundwater Remediation of Contaminated Sites, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Linbo Qian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jiangsu Engineering Laboratory for Soil and Groundwater Remediation of Contaminated Sites, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Yun Chen
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jiangsu Engineering Laboratory for Soil and Groundwater Remediation of Contaminated Sites, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Da Ouyang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Lu Han
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; Jiangsu Engineering Laboratory for Soil and Groundwater Remediation of Contaminated Sites, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Xiao Shang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; School of Environmental Science and Engineering, Shandong University, Qingdao, 266200, China
| | - Jing Li
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Mingyue Gu
- Nanjing Kaiye Environmental Technology Co Ltd, Nanjing, 210034, China
| | - Mengfang Chen
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jiangsu Engineering Laboratory for Soil and Groundwater Remediation of Contaminated Sites, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
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17
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Ding J, Zhang H, Wang W, Zhu Y, Wang Q, Wang A. Synergistic effect of palygorskite nanorods and ion crosslinking to enhance sodium alginate-based hydrogels. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110306] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Xu L, Liu Y, Wang J, Tang Y, Zhang Z. Selective adsorption of Pb 2+ and Cu 2+ on amino-modified attapulgite: Kinetic, thermal dynamic and DFT studies. JOURNAL OF HAZARDOUS MATERIALS 2021; 404:124140. [PMID: 33070005 DOI: 10.1016/j.jhazmat.2020.124140] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/11/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Amino-modified attapulgite (M-ATP) was prepared to remove Pb2+ and Cu2+ from the aqueous solution. Fourier transform infrared spectroscopy (FT-IR) spectrums and X-ray powder diffraction (XRD) patterns revealed that a new Si-O-Si bond formed after modification. The result indicates that the graft reaction of ATP occurred at Si-O (2 0 0) tetrahedron crystal face. No matter whether in a single or binary heavy metal ion system, the adsorption experiments displayed that the equilibrium adsorption capacity of M-ATP towards Pb2+ was much higher than Cu2+, which indicated M-ATP more readily adsorbs the Pb2+. The selective adsorption mechanism of Pb2+ and Cu2+ on modified attapulgite was studied by density functional theory (DFT). The Eads of Pb (- 2.01 eV) adsorbed on M-ATP is lower than Cu (- 1.79 eV) through the DFT calculation of adsorption energy (Eads), which indicate that the Pb2+ adsorbed on M-ATP is more stable than Cu2+. Both adsorption experiments and theoretical calculations revealed that due to the stability of Pb2+ adsorption on M-ATP, Pb2+ is more readily adsorbed by M-ATP, and it is difficult for Cu2+ to exchange Pb2+ from M-ATP.
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Affiliation(s)
- Lei Xu
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yani Liu
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China; College of Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Jingang Wang
- Computational Center for Property and Modification on Nanomaterials, College of Sciences, Liaoning University of Petroleum and Chemical Technology, Fushun 113001, China
| | - Ying Tang
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Zhe Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
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Wang S, Lian W, Ren H, Ma J, Liu Y, Zhang T, Kong LB. Novel composites with a cross-linked polyaniline shell and oriented palygorskite as ideal microwave absorbers. NEW J CHEM 2021. [DOI: 10.1039/d0nj05739h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The obtained composites exhibit a cross-linked shell structure, which has a positive effect on the microwave absorption performance of the materials.
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Affiliation(s)
- Sheng Wang
- School of Materials Science and Engineering, Anhui University of Science and Technology
- Huainan 232001
- China
| | - Wei Lian
- School of Materials Science and Engineering, Anhui University of Science and Technology
- Huainan 232001
- China
| | - Hengdong Ren
- School of Materials Science and Engineering, Anhui University of Science and Technology
- Huainan 232001
- China
| | - Jialin Ma
- School of Materials Science and Engineering, Anhui University of Science and Technology
- Huainan 232001
- China
| | - Yin Liu
- School of Materials Science and Engineering, Anhui University of Science and Technology
- Huainan 232001
- China
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology
- Huainan 232001
| | - Tianshu Zhang
- School of Materials Science and Engineering, Anhui University of Science and Technology
- Huainan 232001
- China
| | - Ling Bing Kong
- College of New Materials and New Energies, Shenzhen Technology University
- Shenzhen 518118
- China
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Zhang H, Wang W, Ding J, Lu Y, Xu J, Wang A. An upgraded and universal strategy to reinforce chitosan/polyvinylpyrrolidone film by incorporating active silica nanorods derived from natural palygorskite. Int J Biol Macromol 2020; 165:1276-1285. [PMID: 33035527 DOI: 10.1016/j.ijbiomac.2020.09.241] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/21/2020] [Accepted: 09/27/2020] [Indexed: 12/17/2022]
Abstract
Active silica nanorod (OPal) was prepared from natural palygorskite (RPal) using an updated acid leaching route, and then the effect of RPal and OPal as nano-filler on the network structure, mechanical, thermal and anti-aging properties of chitosan/polyvinylpyrrolidone (CS/PVP) films was studied comparatively. It was revealed that OPal had a better dispersibility than RPal in CS/PVP substrate, and its incorporation improved the mechanical properties and thermal stability of the films significantly. The optimal composite film containing OPal shows the maximum tensile strength of 27.53 MPa (only 14.87 MPa and 22.47 MPa for CS/PVP and CS/PVP/RPal films, respectively), resulting from the more uniform dispersion of OPal in polymer substrate and its stronger interaction with 3D polymer network. By a controllable acid-leaching process, the metal ions in octahedral sheets of RPal were dissolved out continuously, which is favorable to alleviate the adverse effects of variable metal ions on the film under UV light irradiation, and thus improve the aging-resistant ability of films. This study provides new ideas for improving the reinforcing ability of natural clay minerals towards biopolymer-based material, finds a new way to resolve the aging problem of polymer composites caused by incorporation of natural clay minerals.
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Affiliation(s)
- Hong Zhang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Wenbo Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China.
| | - Junjie Ding
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Yushen Lu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jiang Xu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Aiqin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Zhou A, Wang J. Preparation and adsorption efficiency of sodium dodecyl sulfate modified palygorskite towards Sr(II) ions. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07197-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ali F, Ali N, Altaf M, Said A, Shah SS, Bilal M. Epoxy Polyamide Composites Reinforced with Silica Nanorods: Fabrication, Thermal and Morphological Investigations. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01518-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Ma J, Wang Y, Chen K. Refining single-crystalline epsilon iron oxide nanorods via low-temperature aging. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.09.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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