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Lei Y, Gong YJ, He M, Li L, Qin J, Liu Y. High-Efficiency Purification and Morphology Regulation of CaSO 4·2H 2O Crystals from Phosphogypsum. Molecules 2024; 29:3910. [PMID: 39202989 PMCID: PMC11357588 DOI: 10.3390/molecules29163910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 07/25/2024] [Accepted: 08/15/2024] [Indexed: 09/03/2024] Open
Abstract
Phosphogypsum is a solid waste with great environmental stockpile pressure produced by the wet production of phosphoric acid. Although there are various methods to purify and utilize phosphogypsum, the means for environmentally friendly, low energy consumption, and high value-added utilization still need to be further explored. Here, CaSO4·2H2O crystal was directly purified and regulated from phosphogypsum by using the anti-solvent method. The antisolvent can be adsorbed in the c-axis direction of the crystal and further inhibit the growth rate in this direction, resulting in a change in the morphology of the crystal. By adjusting the polarity and chain length of the anti-solvent, the morphology of CaSO4·2H2O crystal can change from butterfly-like flake crystals to hexagonal prism-like crystals. When n-propanol with long chain was used as the anti-solvent, the morphology of the CaSO4·2H2O crystal showed a hexagonal prism with a specific surface area of 19.98 m2/g and a Cu2+ loading efficiency of 52.67%. The encouraging results open up new possibilities for the application of phosphogypsum.
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Affiliation(s)
- Yang Lei
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (Y.L.); (Y.-J.G.)
| | - Yong-Ji Gong
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (Y.L.); (Y.-J.G.)
| | - Min He
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (Y.L.); (Y.-J.G.)
| | - Liangqun Li
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China;
| | - Jun Qin
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China;
| | - Yufei Liu
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (Y.L.); (Y.-J.G.)
- National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014, China
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Xu Q, Lv Z, Chen X, Li S, Huang C, Chen J, Wang Y, Li H, Zheng H. Aspect Ratio Modulation of Sucralose through {002}/{011} Preferred Orientation in Antisolvent Crystallization. ACS OMEGA 2023; 8:41145-41155. [PMID: 37970050 PMCID: PMC10634189 DOI: 10.1021/acsomega.3c03877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 10/02/2023] [Indexed: 11/17/2023]
Abstract
The aspect ratio modulation in the alcoholysis process is highly significant for the production of high-quality sucralose. In this work, antisolvent crystallization (ASC) accompanied by preferred orientation was first adopted in the sucralose separation, based on which simultaneous modulations on aspect ratio, solubility, and stability have been realized. In detail, after the alcoholysis process in methanol, four antisolvents bearing different functional groups were used in ASC, i.e., isopentanol (IPN), isovaleraldehyde (IVD), isovaleric acid (IVA), and isobutyl propionate (IBP). To our interest, when IVA was used as the antisolvent, the highest separation efficiency (49.33%), fastest crystallizing rate (5.64%/h), lowest aspect ratio (1.55), and solubility (9.28 wt %) and good thermal stability (131.65 °C) of sucralose were achieved. Single crystal structures of sucralose using different antisolvents have been determined. Sucralose using IVA as the antisolvent exhibits the greatest molecular distortion and strongest intermolecular C-H···Cl hydrogen bonds; thus, the preferred growth along {002}/{011} directions has occurred and accounted for its lower aspect ratio, worse solubility, and better stability. The strongest methanol···IVA interactions due to the presence of a carboxyl group can accelerate the formation of the emulsion, resulting in the fastest crystallizing rate. The antisolvent screening and the discovery about relative mechanisms will provide a theoretical guide for the production of high-quality sucralose.
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Affiliation(s)
- Qiaoyan Xu
- Fujian
Engineering Research Center of Advanced Manufacturing Technology for
Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
- Qingyuan
Innovation Laboratory, Quanzhou 362801, P. R. China
| | - Zhoulin Lv
- College
of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Xiaoping Chen
- Fujian
Engineering Research Center of Advanced Manufacturing Technology for
Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
- Qingyuan
Innovation Laboratory, Quanzhou 362801, P. R. China
| | - Shaoheng Li
- Fujian
Engineering Research Center of Advanced Manufacturing Technology for
Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
- Qingyuan
Innovation Laboratory, Quanzhou 362801, P. R. China
| | - Changqi Huang
- Fujian
Engineering Research Center of Advanced Manufacturing Technology for
Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
- Qingyuan
Innovation Laboratory, Quanzhou 362801, P. R. China
| | - Jingjing Chen
- Fujian
Engineering Research Center of Advanced Manufacturing Technology for
Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
- Qingyuan
Innovation Laboratory, Quanzhou 362801, P. R. China
| | - Yingshu Wang
- Fujian
Engineering Research Center of Advanced Manufacturing Technology for
Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
- Qingyuan
Innovation Laboratory, Quanzhou 362801, P. R. China
| | - Haohong Li
- Fujian
Engineering Research Center of Advanced Manufacturing Technology for
Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
- College
of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
| | - Huidong Zheng
- Fujian
Engineering Research Center of Advanced Manufacturing Technology for
Fine Chemicals, College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
- Qingyuan
Innovation Laboratory, Quanzhou 362801, P. R. China
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Zhao J, Chu T, Hu Q, Lei Y, Liu L, Zhang G, Gao C, Zhang T, Song W. The preparation of hydroxyapatite nanowires and nanorods via aliphatic micelles as soft templates. CrystEngComm 2022. [DOI: 10.1039/d2ce00220e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxyapatite nanoparticles were tunably synthesized via the use of an aliphatic–ethanol–water three-phase mixture system using micelles as soft templates via an emulsion–hydrothermal synergistic method.
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Affiliation(s)
- Junhua Zhao
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Tao Chu
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Qin Hu
- Institute of ZheJiang University-Quzhou, Quzhou 324000, Zhejiang, China
| | - Yinlin Lei
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Liu Liu
- Institute of ZheJiang University-Quzhou, Quzhou 324000, Zhejiang, China
| | - Gongjun Zhang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Chuanhua Gao
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Tianqi Zhang
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Weijie Song
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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Song K, Koo JY, Choi HC. Viscosity effect on the strategic kinetic overgrowth of molecular crystals in various morphologies: concave and octapod fullerene crystals. RSC Adv 2021; 11:20992-20996. [PMID: 35479363 PMCID: PMC9034007 DOI: 10.1039/d1ra02924j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/04/2021] [Indexed: 11/21/2022] Open
Abstract
A kinetic overgrowth allowing organic molecular crystals in various morphologies is induced by temperature-dependent viscosity change of crystallization solution. By this strategy, concave cube and octapod fullerene C70 crystals were successfully obtained by antisolvent crystallization (ASC). The structural analysis of fullerene C70 crystals indicates that the morphological difference is the result of kinetic processes, which reveals that viscosity, the only variable that can change dynamics of solutes, has a significant influence on determining the morphology of crystals. The effect of solvent viscosity in the stage of crystal growth was investigated through time-dependent control experiments, which led to the proposal of a diffusion rate-based mechanism. Our findings suggest morphology control of organic crystals by diffusion rate control, which is scarcely known compared to inorganic crystals. This strategic method will promote the morphology controls of various organic molecular crystals, and boost the morphology-property relationship study.
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Affiliation(s)
- Kwangjin Song
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Jin Young Koo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Hee Cheul Choi
- Department of Chemistry, Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
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