Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.1
2.8
Journals
Processes
Special Issues
Green Particle Technologies: Processes and Applications
share announcement

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: 31 May 2025 | Viewed by 12322

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

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (7 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

21 pages, 2934 KiB  
Article
Study of Particle Discharge from a Fluidized Bed: Experimental Investigation and Comparative Modeling Analysis
by Aisel Ajalova, Kaicheng Chen, Torsten Hoffmann and Evangelos Tsotsas
Processes 2025, 13(2), 562; https://doi.org/10.3390/pr13020562 - 17 Feb 2025
Viewed by 380
Abstract
Studying particle discharge rates in fluidized bed technology is important for optimizing continuous processes and improving product quality. This study investigates particle discharge, specifically the mass outflow rate, from a pilot-scale fluidized bed by means of experimental methods and mathematical modeling. The modeling [...] Read more.
Studying particle discharge rates in fluidized bed technology is important for optimizing continuous processes and improving product quality. This study investigates particle discharge, specifically the mass outflow rate, from a pilot-scale fluidized bed by means of experimental methods and mathematical modeling. The modeling uses various algebraic equations to predict the mass outflow rate and the time evolution of bed mass. Experiments in which these quantities were measured were conducted under different conditions, including varying mass inflow rates and process modes such as continuous and semi-batch. The results indicate that the mass outflow rate can be effectively modeled using existing equations from the literature, as well as a newly introduced equation, providing a comprehensive understanding of the holdup and discharge behavior of the fluidized bed. The newly introduced equation seems to perform better under transient conditions, being most appropriate for automatic control. Full article
(This article belongs to the Special Issue Green Particle Technologies: Processes and Applications)
►▼ Show Figures

Figure 1

12 pages, 3243 KiB  
Article
Differential Effects of Various Cleaning Solutions on the Cleaning and Regeneration Performance of Commonly Used Polyester Fiber Material Air Filters
by Puchun He, Lei Zhang, Yun Li, Wenqiang Xue and Xin Zhang
Processes 2024, 12(12), 2703; https://doi.org/10.3390/pr12122703 - 30 Nov 2024
Cited by 2 | Viewed by 911
Abstract
The regeneration and performance of air filter materials are important means of conserving energy and reducing emissions in civil public buildings. The repeated regeneration and use of air filters can not only effectively increase the lifespan of the filters but also reduce the [...] Read more.
The regeneration and performance of air filter materials are important means of conserving energy and reducing emissions in civil public buildings. The repeated regeneration and use of air filters can not only effectively increase the lifespan of the filters but also reduce the phenomenon of filter disposal and incineration after reaching or not reaching the replacement cycle, further reducing resource waste and air pollution and thereby directly or indirectly reducing carbon emissions. In this study, polyester fiber air filters commonly used in civil public buildings were selected as the research object, and the regeneration performance and structural parameters of water and a cleaning solution were investigated under various cleaning conditions. The results show that the filtration efficiency when cleaning with water was higher than that when cleaning with the cleaning solution. The filtration efficiency for PM10, PM2.5, and PM1.0 increased from 0.3% to 3.5%, 0.7% to 6.3%, and 0.1% to 4.6%, respectively. Water could be used twice for cleaning for PM10 and once for PM2.5, and the cleaning solution could only be used once for cleaning for PM10. The counting filtration efficiency of 0.3 to 2.5 μm particulates showed a relatively significant change. The resistance after cleaning with water was higher than that after cleaning with the cleaning solution. For the quality factor (QF) value of PM10, the cleaning solution had a slightly higher cleaning effect, while for the QF values of PM2.5 and PM1.0, water had a slightly higher cleaning effect. In practical use, it is recommended to first use a cleaning solution and then water for subsequent cleaning. This study provides data support for the use of filters to achieve the dual carbon goal. Full article
(This article belongs to the Special Issue Green Particle Technologies: Processes and Applications)
►▼ Show Figures

Figure 1

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 4 | Viewed by 1951
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)
►▼ Show Figures

Figure 1

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 1599
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)
►▼ Show Figures

Figure 1

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 - 1 Jul 2022
Viewed by 1857
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)
►▼ Show Figures

Figure 1

Review

Jump to: Research

31 pages, 1462 KiB  
Review
Versatile Emulsion-Based Encapsulation System Production Processes: A Review
by Chiara Bufalini and Roberta Campardelli
Processes 2025, 13(5), 1409; https://doi.org/10.3390/pr13051409 - 5 May 2025
Viewed by 403
Abstract
Encapsulation is defined as the entrapment of active agents within another substance, which can be either solid or liquid. These substances need to be protected in order to preserve their functional and physicochemical properties, to enhance their stability, and to extend their shelf-life. [...] Read more.
Encapsulation is defined as the entrapment of active agents within another substance, which can be either solid or liquid. These substances need to be protected in order to preserve their functional and physicochemical properties, to enhance their stability, and to extend their shelf-life. Among all the existing methodologies, emulsion-based techniques are selected to be investigated in this review. Emulsion-based techniques are versatile and adaptable to different applications and different substances. In fact, these methods use the emulsion structure to protect the compounds of interest. Emulsions can be used as standalone systems or as a template for the production of polymeric particles. This review provides a comprehensive overview of emulsion-based techniques, with a particular focus on production processes. The emulsions have been described in terms of classification, composition, and characterization. The main production processes are examined in detail, with the main advantages and disadvantages of each methodology highlighted to provide a comprehensive overview of the topic. Full article
(This article belongs to the Special Issue Green Particle Technologies: Processes and Applications)
►▼ Show Figures

Figure 1

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 5 | Viewed by 3306
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)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-7
Back to TopTop