Preparation and Characterization of Magnesium Hydroxide Nanoparticles in a Novel Impinging Stream-Rotating Packed Bed Reactor
Abstract
Magnesium hydroxide [Mg(OH)2] nanoparticles were prepared using a novel impinging stream-rotating packed bed reactor (IS-RPB). Magnesium chloride and sodium hydroxide were used as the reactants. The effects of several synthesis parameters, such as the initial concentration of Mg2+, rotation speed, liquid flow rate, reaction temperature, and reactant concentration ratio, on the particle size, distribution, and morphology of Mg(OH)2 were investigated. The liquid flow rate and rotation speed were determined to have a significant influence on the particle size and distribution of Mg(OH)2 powder. The volume mean size decreased with an increase in the liquid flow rate and rotation speed. The size distribution for the lowest liquid flow rate was wider than that for the higher liquid flow rates. The morphology, crystal phase, and thermal behavior of the samples were also characterized through transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and thermal gravimetric analysis. The results indicated that Mg(OH)2 nanoparticles prepared using the wet precipitation method in IS-RPB had small particle size and narrow size distribution. Moreover, the results indicated that the presented novel reactor (IS-RPB) might provide a new method for the production of nanoparticles in industrial applications.
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In the IS-RPB reactor, reactant streams are fed as jets from opposite directions, leading to reactant direct collision, intensifying micro-mixing within the reactor, and homogeneous distribution in the packed bed.
“In the IS-RPB, the reactant streams are fed as jets from opposite directions; this configuration led to reactant direct collision, intensifying micro-mixing within the reactor, and homogeneous distribution in the packed bed.”
From Computational Modeling of Magnesium Hydroxide Precipitation and Kinetics Parameters Identification (2023) · cites this paper as [13]
In the tuning dataset, only two out of twenty points are slightly out of standard deviations.
“Concerning the tuning dataset, only two points (out of twenty) are slightly out of the standard deviations, and this might be due to a small morphology change13 not accounted for in the model.”
From Computational Modeling of Magnesium Hydroxide Precipitation and Kinetics Parameters Identification (2023) · cites this paper as [13]
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Romano, S., Trespi, S., Achermann, R., Battaglia, G., Raponi, A., Marchisio, D., Mazzotti, M., Micale, G., & Cipollina, A. (2023) · Crystal Growth & Design · doi:10.1021/acs.cgd.3c00462 · Cited by 52 · see citing works
Battaglia, G., Romano, S., Raponi, A., Marchisio, D., Ciofalo, M., Tamburini, A., Cipollina, A., & Micale, G. (2022) · Powder Technology · doi:10.1016/j.powtec.2021.117106 · Cited by 49 · see citing works
Battaglia, G., Romano, S., Raponi, A., Marchisio, D., Ciofalo, M., Tamburini, A., Cipollina, A., & Micale, G. (2022) · Powder Technology · doi:10.31224/osf.io/fh3az · Cited by 45 · see citing works
“Particles were measured using a dynamic light scattering technology yielding number-average particle size from 40.0 to 47.5 nm. Shen et al [28] developed a novel impinging stream-rotating packed bed reactor.”
BackgroundInfluentialComputational Modeling of Magnesium Hydroxide Precipitation and Kinetics Parameters Identification
Raponi, A., Romano, S., Battaglia, G., Buffo, A., Vanni, M., Cipollina, A., & Marchisio, D. (2023) · Crystal Growth & Design · doi:10.1021/acs.cgd.2c01179 · Cited by 36 · see citing works
Shen, H.-Y., & Liu, Y.-Z. (2018) · Chinese Journal of Chemical Engineering · doi:10.1016/j.cjche.2018.08.008 · Cited by 32
Self-citationExtraction of nitrobenzene from aqueous solution in impinging stream-rotating packed bed
Yang, P.-F., Luo, S., Zhang, D.-S., Yang, P.-Z., Liu, Y.-Z., & Jiao, W.-Z. (2018) · doi:10.1016/j.cep.2018.01.022 · Cited by 26
Self-citationHe, R., Zhang, Q.-L., Liu, Y.-Z., Guo, J., & Shen, H.-Y. (2021) · Advances in Applied Ceramics: Structural, Functional and Bioceramics · doi:10.1080/17436753.2021.1904766 · Cited by 9
“much shorter than the time required for nucleation induction (1–2 ms) [49], which ensures the nucleation and growth of nanoparticles in a uniform environ-”
BackgroundSelf-citationAmimoto, A., Tokudome, Y., Obata, A., Ibayashi, S., Tarutani, N., Shinchi, R., & Nakahira, A. (2025) · Materials Chemistry and Physics · doi:10.1016/j.matchemphys.2025.131132 · Cited by 5
Chen, G.-L., Kang, Z., Ma, Y.-X., Huang, X.-L., Sun, X., & Wang, Q.-W. (2025) · Journal of Solid State Chemistry · doi:10.1016/j.jssc.2025.125214 · Cited by 3 · see citing works
Shen, H.-Y., Li, Z., & Liu, Y.-Z. (2026) · Chemical Engineering and Processing · doi:10.1016/j.cep.2026.111091
Self-citationLi, P., Zhao, L.-L., Wang, S., Zhang, X., Jiang, H., Liu, R., Zhao, N., Cheng, J., Xu, C.-L., Zhao, H., et al. (2021) · Journal of Sol-Gel Science and Technology · doi:10.1007/s10971-021-05675-y
- Authors
- Shen, H., Liu, Y., & Song, B.
- Affiliations
- North University of China (CN)
- Venue
- Journal of Chemical Engineering of Japan
- Publisher
- Informa UK Limited
- Published
- 2016
- Volume
- 49
- Issue
- 4
- Pages
- 372-378
- ISSN
- 0021-9592 (ISSN-L)
- 1881-1299
- OpenAlex
- W2339359179
- Cited by
- 14
- References
- 0
- Citations by year
- 2026: 3 · 2025: 3 · 2023: 2 · 2022: 2 · 2021: 2 · 2018: 2
- FWCI
- 0.30
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN (publishedVersion)
- Funders
- National Science Foundation
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Magnesium Oxide Properties and Applications
- Physical Sciences › Materials Science › Materials Chemistry › Crystallization and Solubility Studies
- Physical Sciences › Engineering › Computational Mechanics › Granular flow and fluidized beds
- Keywords
- magnesium hydroxide nanoparticles, wet precipitation synthesis, particle size distribution, liquid flow rate, rotational speed, magnesium chloride, sodium hydroxide, crystalline phase, thermal effects, nanoparticle morphology
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