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Processes
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Green Particle Technologies: Processes and Applications
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Green Particle Technologies: Processes and Applications

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Particle Processes".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 7248

Special Issue Editors

Prof. Dr. Haiping Zhang

E-Mail Website
Guest Editor
Department of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China
Interests: nano materials; powder technology; coatings; catalysis; green chemistry
Prof. Dr. Hui Zhang

E-Mail Website
Guest Editor
Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
Interests: powder technology; powder coatings; fluidization; Nano materials; functional materials

Special Issue Information

Dear Colleagues,

Particle technology refers to science and technology associated with the handling and processing of particles and powders. These processes involve the formation, modification, separation, storage, transport, characterization, safety and application of particulate materials. In these processes, no matter wet or dry, one or more of the materials concerned are in the form of particles, with sizes ranging from nanometers to centimeters. Particle technology comes from and applies to almost all industries, from chemical, petrochemical, agricultural, food, pharmaceutical, mineral and civil engineering, to advanced materials, energy and environment, to name a few. Along with increasingly stringent environmental legislation and requirements, more and more eco-friendly materials, processes and products are emerging, with pristine technologies involved. New knowledge in green particle technology is undoubtedly advancing the current state of the art in all these industries to a new level. As such, it would be beneficial to both industrial and academic communities to gather recent research findings in the topic of “Green particle technologies”, on the platform of the journal Processes.

The aim of this Special Issue on “Green particle technologies：processes and applications” is to uncover the most recent advancements in the development of green particle technologies, seeking novel contributions in, but not limited to, the following areas:

  • Green processes on the synthesis and formation of particles;
  • Green processes on the modification of particles;
  • Green processes of particle handling and operations;
  • The use of green materials in particle-related products;
  • The application of particle technology in the production of green products;
  • Processes on treatment of waste/harmful particles;
  • New characterization methods, techniques and indications towards green particulate materials and products.

Prof. Dr. Haiping Zhang
Prof. Dr. Hui Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • powder technology
  • green process
  • particle formation
  • particle modification
  • green material
  • green product
  • waste/harmful particles
  • characterization method

Published Papers (4 papers)

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Research

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13 pages, 3151 KiB  
Article
Influence of Sputtering Pressure on the Micro-Topography of Sputtered Cu/Si Films: Integrated Multiscale Simulation
by Guo Zhu, Mengxin Han, Baijun Xiao and Zhiyin Gan
Processes 2023, 11(6), 1649; https://doi.org/10.3390/pr11061649 - 28 May 2023
Cited by 2 | Viewed by 1259
Abstract
In this work, an integrated multiscale simulation of magnetron sputtering epitaxy was conducted to study the effect of sputtering pressure on the surface micro-topography of sputtered Cu/Si films. Simulation results indicated that, as the sputtering pressure increased from 0.15 to 2 Pa, the [...] Read more.
In this work, an integrated multiscale simulation of magnetron sputtering epitaxy was conducted to study the effect of sputtering pressure on the surface micro-topography of sputtered Cu/Si films. Simulation results indicated that, as the sputtering pressure increased from 0.15 to 2 Pa, the peak energy of the incident energy distribution gradually decreased from 2 to 0.2 eV, which might be mainly due to the gradual decrease in the proportion of deposited Cu atoms whose energy ranged from 2 to 30 eV; the peak angle of the incident polar angle distribution increased from 25° to 35°, which might be attributed to the gradual thermalization of deposited Cu atoms; the growth mode of Cu film transformed from the two-dimensional layered mode to the Volmer-Weber mode. The transformation mechanism of growth mode was analyzed in detail. A comprehensive analysis of the simulation results indicated that incident energy ranging from 2 to 30 eV and incident angle between 10° and 35° might be conducive to the two-dimensional layered growth of sputtered Cu films. This work proposes an application-oriented modeling approach for magnetron sputtering epitaxy. Full article
(This article belongs to the Special Issue Green Particle Technologies: Processes and Applications)
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14 pages, 2193 KiB  
Article
Dissolving Activated Carbon Pellets for Ibuprofen Removal at Point-of-Entry
by Michelle Finn, Noelle Yackel, Gabrielle Giampietro and David Mazyck
Processes 2023, 11(5), 1470; https://doi.org/10.3390/pr11051470 - 12 May 2023
Viewed by 942
Abstract
The increased usage of pharmaceuticals coupled with the desire for greywater reuse to reduce the freshwater demand for potable water requires a user-friendly engineered solution. Activated carbon is a proven technology that is typically used for organic pollutant removal at water treatment plants. [...] Read more.
The increased usage of pharmaceuticals coupled with the desire for greywater reuse to reduce the freshwater demand for potable water requires a user-friendly engineered solution. Activated carbon is a proven technology that is typically used for organic pollutant removal at water treatment plants. Lignite, coconut, and a blend of activated carbon powders were used to develop rapid-dissolving pellets with an inorganic binder. Ibuprofen was the model compound chosen for pharmaceutical adsorption in deionized water and synthetic hydrolyzed and synthetic fresh urine at rapid contact times (0.5 to 30 min) and using various pellet dosages (0.5 to 10 g/L). A cost analysis was performed to determine the feasibility of the engineered solution. With an increase in contact time, the coconut pellets outperformed both the blend and lignite pellets in deionized water at a set pellet dosage. The lignite pellets were the most cost-effective with rapid adsorption in fresh urine and a capacity of 0.089 g ibuprofen/g pellet. Additional optimization parameters include pellet dissolvability, pellet dosage in relation to different pharmaceuticals, and the impact of activated carbon on the household sewage system, and each of these are necessary to determine application feasibility. Full article
(This article belongs to the Special Issue Green Particle Technologies: Processes and Applications)
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13 pages, 2799 KiB  
Article
Green Synthesis of 3-Hydroxybutyraldehyde from Acetaldehyde Catalyzed by La-Ca-Modified MgO/Al2O3
by Hailun Ren and Weihong Li
Processes 2022, 10(7), 1302; https://doi.org/10.3390/pr10071302 - 01 Jul 2022
Viewed by 1297
Abstract
3-hydroxybutyraldehyde (3-HBA) is mainly employed to synthesize 1,3-BDO (1,3-butanediol), which is one of the most important components in cosmetics moisturizers. In this study, a series of composite oxide catalysts were prepared by bringing alkaline earth metal Ca and rare earth metal La to [...] Read more.
3-hydroxybutyraldehyde (3-HBA) is mainly employed to synthesize 1,3-BDO (1,3-butanediol), which is one of the most important components in cosmetics moisturizers. In this study, a series of composite oxide catalysts were prepared by bringing alkaline earth metal Ca and rare earth metal La to the composite oxide MgO/Al2O3, which were made through the co-precipitation method. These catalysts were applied in the synthesis of 3-HBA through acetaldehyde (AcH) condensation. The structure, texture, and acidic properties of these catalysts were characterized using various characterization methods, and the effects of catalyst composition, reaction temperature, reaction pressure, and residence time on the conversion of AcH were investigated as well. The results showed that the introduction of Ca and La weakened the acidic property and enhanced the basic property, which favored the AcH condensation to synthesize 3-HBA. At a temperature of 20 °C, pressure of 200 kPa, and residence time of 70 min, 0.5%La-2.3%Ca-2MgO/Al2O3 exhibited a better catalytic activity, and the conversion of AcH reached 95.89%. The selectivity and yield of 3-HBA were 92.08% and 88.30%, respectively. The stability test indicated that the high AcH conversion could be maintained for 5 h. Full article
(This article belongs to the Special Issue Green Particle Technologies: Processes and Applications)
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Review

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11 pages, 584 KiB  
Review
Dining Lampblack Treatment Processes in China
by Wanpeng Hu, Jumei Ye, Xiaozhen Chen, Guoying Wang, Sen Li, Hui Wang, Hong Li and Haiping Zhang
Processes 2021, 9(12), 2241; https://doi.org/10.3390/pr9122241 - 13 Dec 2021
Cited by 2 | Viewed by 2423
Abstract
The PM2.5 and other small particles produced by cooking oil fumes have contributed up to 25% to the urban atmospheric PM2.5, which has a bad impact on air quality and seriously threatens human health. Aiming at the pollution problem caused [...] Read more.
The PM2.5 and other small particles produced by cooking oil fumes have contributed up to 25% to the urban atmospheric PM2.5, which has a bad impact on air quality and seriously threatens human health. Aiming at the pollution problem caused by catering oil fume, this article analyzes the threats of air pollution to human health based on the compositions and characteristics of catering oil fume, illustrates the development trend of China′s food and beverage lampblack control policy, and summarizes and points out the current situation and development trend of catering oil fume treatment. In order to provide ideas for the design of more efficient and energy-saving treatment processes in the future, the advantages and disadvantages were reviewed, and the improvement direction of the treatment technology was discussed. Full article
(This article belongs to the Special Issue Green Particle Technologies: Processes and Applications)
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