{"title":"Polymer-Particle Enhanced Visible Light Range Photocatalytic Activity on Textile Applications","authors":"Asena Cerhan Haink, G. Basim","doi":"10.14356/kona.2021011","DOIUrl":"https://doi.org/10.14356/kona.2021011","url":null,"abstract":"","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"71 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90387054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mechanochemical Preparation of Mineral Based Adsorbent and Its Effective Purification Ability for Wastewater","authors":"Huimin Hu, Qiwu Zhang","doi":"10.14356/kona.2021012","DOIUrl":"https://doi.org/10.14356/kona.2021012","url":null,"abstract":"With the economic development, environmental pollution is getting worse in many developing countries including China. Traditional processing as CaO neutralization of acidic solutions is still a burden to many local governments of China and development of new process with lower cost is highly required. Mining exploitation produces large amounts of tailings in which industrial minerals such as carbonates, silicates and others have been left without proper utilization. Based on the intensive investigations in the field of mechanochemistry, we propose to use these mineral samples to deal with the purification of heavy metal polluted water by enhancing their reactivity through mechanochemical activation. The industrial minerals such as silicates (serpentine and kaolinite), carbonates (calcite) have been studied for the purposes on removal of contaminants from solution. In addition, the synergistic effects from mixtures of calcite with other material have been investigated to give their excellent adsorbent performance for purification of the wastewater. This review summarizes the recent progresses for mechanochemical preparation of mineral based adsorbent and its effective purification ability for toxic matter-containing wastewater.","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"17 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90436635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Particle Preparation and Morphology Control with Mutual Diffusion Across Liquid-Liquid Interfaces","authors":"Kazunori Kadota, Y. Shirakawa","doi":"10.14356/kona.2021006","DOIUrl":"https://doi.org/10.14356/kona.2021006","url":null,"abstract":"Advanced functional materials require sophisticated control of particle characteristics. The bottom-up process has been extensively used to produce functional materials for controlling the particle properties of composite particles. We propose crystallization at liquid-liquid interfaces as an advanced particle formation method. This review introduces crystallization at a liquid-liquid interface based on several case studies used in various applications. Conventional crystallization has been generally used to produce crystals and particles with homogeneous particle properties. Liquid-liquid interfacial crystallization makes it possible to create composite particles with hetero-phase structures and interfaces. Liquid-liquid interfacial crystallization with an inkjet technique can control the droplet size accurately, and the shape and particle size distribution are successfully controlled in inorganic-organic composite particles. In addition, we succeed in creating organic-organic composite particles using the interfacial crystallization by an ultrasonic spray nozzle. The coating efficiency of organic particles on the particles is enhanced using the ultrasonic spray nozzle in comparison with anti-solvent crystallization. In this study, the fabrication of inorganic-organic composite particles using a coaxial tube reactor on the liquid-liquid interfacial crystallization is proven successful. These findings suggest that liquid-liquid interfacial crystallization is a promising means of efficiently producing composite particles because of their applicability to infusion in various processes.","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"31 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90921988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carlos Ortiz, J. Valverde, R. Chacartegui, L. Pérez-Maqueda, Pau Gimenez-Gavarrell
{"title":"Scaling-up the Calcium-Looping Process for CO2 Capture and Energy Storage","authors":"Carlos Ortiz, J. Valverde, R. Chacartegui, L. Pérez-Maqueda, Pau Gimenez-Gavarrell","doi":"10.14356/kona.2021005","DOIUrl":"https://doi.org/10.14356/kona.2021005","url":null,"abstract":"The Calcium-Looping (CaL) process has emerged in the last years as a promising technology to face two key challenges within the future energy scenario: energy storage in renewable energy-based plants and CO 2 capture from fossil fuel combustion. Based on the multicycle calcination-carbonation reaction of CaCO 3 for both thermochemical energy storage and post-combustion CO 2 capture applications, the operating conditions for each application may involve remarkably different characteristics regarding kinetics, heat transfer and material multicycle activity performance. The novelty and urgency of developing these applications demand an important effort to overcome serious issues, most of them related to gas-solids reactions and material handling. This work reviews the latest results from international research projects including a critical assessment of the technology needed to scale up the process. A set of equipment and methods already proved as well as those requiring further demonstration are discussed. An emphasis is put on critical equipment such as gas-solids reactors for both calcination and carbonation, power block integration, gas and solids conveying systems and auxiliary equipment for both energy storage and CO 2 capture CaL applications.","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"16 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75145304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alowasheeir Azhar, Jacob Earnshaw, Mohamed B Zakaria, Mohamed B Zakaria, P. Cheng, Y. V. Kaneti, M. S. Hossain, S. Alshehri, T. Ahamad, Y. Yamauchi, Y. Yamauchi, Jongbeom Na, Jongbeom Na
{"title":"Fabrication and Characterization of Prussian Blue-Derived Iron Carbide-Iron Oxide Hybrid on Reduced Graphene Oxide Nanosheets","authors":"Alowasheeir Azhar, Jacob Earnshaw, Mohamed B Zakaria, Mohamed B Zakaria, P. Cheng, Y. V. Kaneti, M. S. Hossain, S. Alshehri, T. Ahamad, Y. Yamauchi, Y. Yamauchi, Jongbeom Na, Jongbeom Na","doi":"10.14356/kona.2021015","DOIUrl":"https://doi.org/10.14356/kona.2021015","url":null,"abstract":"This work demonstrates the fabrication of a nanoporous iron carbide-iron oxide/reduced graphene oxide (IC-IO/ rGO) hybrid via a controlled one-step thermal treatment of Prussian blue (PB)/GO hybrid at 450 °C under N2 flow. The PB/GO hybrid is initially prepared through the in-situ deposition of PB nanoparticles on the GO sheets through electrostatic interactions. The morphological analysis of the hybrid reveals the uniform coverage of the rGO sheets by IC-IO nanoparticles and the even distribution of carbon (C), oxygen (O), and iron (Fe) on the rGO nanosheets. As a result of the hybrid composition and controlled morphology, the surface area of the obtained IC-IO/rGO hybrid (~40 m2/g) is significantly enhanced compared to those of the calcined GO sheets and PB nanoparticles (without GO).","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"24 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75681958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Kassem, Nizar Salloum, T. Brinz, Y. Heider, B. Markert
{"title":"A Semi-Automated DEM Parameter Calibration Technique of Powders Based on Different Bulk Responses Extracted from Auger Dosing Experiments","authors":"B. Kassem, Nizar Salloum, T. Brinz, Y. Heider, B. Markert","doi":"10.14356/kona.2021010","DOIUrl":"https://doi.org/10.14356/kona.2021010","url":null,"abstract":"Discrete Element Method (DEM) proved to be an essential tool to optimize the industrial auger dosing process for pharmaceutical powders. During the DEM parameter calibration process of a certain powder, several parameter combinations might lead to a similar bulk response, which could also vary for other bulk responses. Therefore, a methodology is needed in order to narrow down the number of combinations and be at once close to reality representation. In this study, a vertical auger dosing setup is used as a standard calibration device to extract three different bulk responses, i.e., angle of repose, bulk density, and mass flow rate. Simulations using LIGGGHTS software package are performed based on Design of Experiments (DoE) by varying four input factors, i.e., auger speed, particle-particle and particle-wall static friction coefficients, and particle-particle rolling friction coefficient. The successful application of multivariate regression analysis (MVRA) results in predicting the bulk behavior within the studied ranges of parameters. In this regard, clustering the different predicted behaviors of the three responses together allows to dramatically reduce the admissible parameter combinations. Consequently, an optimized set of calibrated DEM parameters is chosen, where the simulation results accurately match the experimental reference data. This simple dynamic calibration tool proves to strongly verify and predict the flowability of free-flowing bulk materials.","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"55 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78294728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Fushimi, Kentaro Yato, M. Sakai, T. Kawano, Teruyuki Kita
{"title":"Recent Progress in Efficient Gas–Solid Cyclone Separators with a High Solids Loading for Large-scale Fluidized Beds","authors":"C. Fushimi, Kentaro Yato, M. Sakai, T. Kawano, Teruyuki Kita","doi":"10.14356/kona.2021001","DOIUrl":"https://doi.org/10.14356/kona.2021001","url":null,"abstract":"Circulating fluidized beds (CFB)s are important technical equipment to treat gas–solid systems for fluid catalytic cracking, combustion, gasification, and high-temperature heat receiving because their mass and heat transfer rates are large. Cyclones are important devices to control the performance of CFBs and ensure their stable operation; heat-carrying and/or solid catalyst particles being circulated in a CFB should be efficiently separated from gas at a reduced pressure loss during separation. In commercial CFBs, a large amount of solids (> 1 kg-solid (m 3 -gas) –1 or > 1 kg-solid (kg-gas) –1 ) is circulated and should be treated. Thus, gas–solid cyclones with a high solids loading should be developed. A large number of reports have been published on gas–solid separators, including cyclones. In addition, computational fluid dynamics (CFD) technology has rapidly developed in the past decade. Based on these observations, in this review, we summarize the recent progress in experimental and CFD studies on gas– solid cyclones. The modified pressure drop model, scale-up methodology, and criteria for a single large cyclone vs. multiple cyclones are explained. Future research perspectives are also discussed.","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"43 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76425588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. G. S. Erik, Fuweng Zhang, van Steijn Volkert, V.H.O Ruud, M. H. M. Gabrie
{"title":"Static and Dynamic Stickiness Tests to Measure Particle Stickiness","authors":"J. G. S. Erik, Fuweng Zhang, van Steijn Volkert, V.H.O Ruud, M. H. M. Gabrie","doi":"10.14356/kona.2021017","DOIUrl":"https://doi.org/10.14356/kona.2021017","url":null,"abstract":"Sticking of particles has a tremendous impact on powder-processing industries, especially for hygroscopic amorphous powders. A wide variety of experimental methods has been developed to measure at what combinations of temperature and moisture content material becomes sticky. This review describes, for each method, how so-called stickiness curves are determined. As particle velocity also plays a key role, we classify the methods into static and dynamic stickiness tests. Static stickiness tests have limited particle motion during the conditioning step prior to the measurement. Thus, the obtained information is particularly useful in predicting the long-term behavior of powder during storage or in packaging. Dynamic stickiness tests involve significant particle motion during conditioning and measurement. Stickiness curves strongly depend on particle velocity, and the obtained information is highly relevant to the design and operation of powder production and processing equipment. Virtually all methods determine the onset of stickiness using powder as a starting point. Given the many industrial processes like spray drying that start from a liquid that may become sticky upon drying, future effort should focus on developing test methods that determine the onset of stickiness using a liquid droplet as a starting point.","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"6 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82563364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"3rd International Hosokawa Powder Technology Symposium Held in China","authors":"","doi":"10.14356/kona.2021022","DOIUrl":"https://doi.org/10.14356/kona.2021022","url":null,"abstract":"As the special event aiming at the globalization in Asia of the Hosokawa Powder Technology Foundation, the 3rd International Hosokawa Powder Technology Symposium took place on Tuesday, November 19, 2019, at the Shanghai Institute of Ceramics of the Chinese Academy of Sciences (SICCAS) in China. This International Hosokawa Powder Technology Symposium was held abroad for the third time after the first one (2014, at Hosokawa Alpine AG in Augsburg, Germany) and the second (2017, at Hosokawa Micron Powder Systems Div. in New Jersey, U.S.A.) organized by the Hosokawa Powder Technology Foundation (HPTF). It was co-organized by the SICCAS and the Society of Powder Technology, Japan (SPTJ) and supported by the Hosokawa Micron Corporation (HMC) and Hosokawa Micron (Shanghai) Powder Machinery Co., Ltd. (HMS). At the symposium, five lectures were given on the theme of “Powder and Particle Technology for Advanced Materials” after the opening remarks of President Yoshio Hosokawa. In the first lecture, high-purity, ultra-fine powder production and processing technologies for advanced materials such as ultra-high temperature heat-resistant rocket members, reflectors, and transparent materials were presented. Then the new nanoparticle size measuring devices, and the in-situ and real-time nanoparticle measurement using this device was introduced. The third lecture was concerning the functional materials based on the form of natural organisms to create new innovative functionalities. After the lectures by the Chinese professors, two presentations were given from the Hosokawa Group on the application of powder processing technology to various industrial product fields, and the devel opment and commercialization of cosmetics and pharmaceuticals using PLGA nanoparticles. Finally, Mr. Uchida of HMS closed the conference with the closing remarks. The symposium","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"82 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2021-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81452516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}