HIROKI NAGASAWA
Last Updated :2022/08/02
- Affiliations, Positions
- Graduate School of Advanced Science and Engineering, Assistant Professor
- Web Site
- E-mail
- nagasawa
hiroshima-u.ac.jp
- Other Contact Details
- 1-4-1,Kagamiyama,Higashi-Hiroshima, Japan
TEL : (+81)82-424-7719 FAX : (+81)
- Self-introduction
- Development of functional thin films via plasma processing and their applications.
Basic Information
Major Professional Backgrounds
- 2020/04/01, Hiroshima University, Graduate School of Advanced Science and Engineering, Assistant Professor
- 2017/04/01, 2020/03/31, Hiroshima University, Graduate School of Engineering, Assistant Professor
- 2012/04/01, 2017/03/31, Hiroshima University, Institute of Engineering, Assistant Professor (Special Appointment)
- 2010/04, 2012/03, Japan Society for the Promotion of Science
Educational Backgrounds
- The University of Tokyo, Graduate School of Frontier Sciences, Departoment of Environment Systems, Japan, 2012/03/31
- The University of Tokyo, Japan, 2007/04, 2009/03
- The University of Tokyo, Japan, 2003/04, 2007/03
Academic Degrees
- Doctor of Philosophy, The University of Tokyo
- Master of Engineering, The University of Tokyo
In Charge of Primary Major Programs
Research Fields
- Engineering;Process / Chemical engineering;Properties in chemical engineering process / Transfer operation / Unit operation
Research Keywords
- Membrane separation
- Atmospheric-pressure plasma
- Plasma-enhanced chemical vapor deposition
- Silica Membrane
- Functional thin film
- Molecular sieving
Affiliated Academic Societies
- The Society of Chemical Engineers, Japan
- The Membrane Society of Japan
- American Institute of Chemical Engineering
- The Japan Society of Applied Physics
Educational Activity
Course in Charge
- 2022, Undergraduate Education, 2Term, Introduction to Applied Chemistry, Chemical Engineering and Biotechnology
- 2022, Undergraduate Education, Second Semester, Experimental Chemical Engineering
- 2022, Undergraduate Education, Second Semester, Chemical Engineering Exercise I
- 2022, Graduate Education (Master's Program) , 3Term, Special Exercises on Chemical Engineering B
- 2022, Graduate Education (Master's Program) , 4Term, Special Exercises on Chemical Engineering B
- 2022, Graduate Education (Master's Program) , Academic Year, Special Study on Chemical Engineering
Research Activities
Academic Papers
- Characterization and gas permeation properties of amorphous silica membranes prepared via plasma enhanced chemical vapor deposition, JOURNAL OF MEMBRANE SCIENCE, 441, 45-53, 20130815
- Pore size control of Al-doping into bis (triethoxysilyl) methane (BTESM)-derived membranes for improved gas permeation properties, RSC ADVANCES, 3(30), 12080-12083, 2013
- Graphene nanosheets supporting Ru nanoparticles with controlled nanoarchitectures form a high-performance catalyst for COx-free hydrogen production from ammonia, JOURNAL OF MATERIALS CHEMISTRY A, 2(24), 9185-9192, 2014
- Molecular dynamics simulation study on characterization of bis(triethoxysilyl)-ethane and bis(triethoxysilyl)ethylene derived silica-based membranes, DESALINATION AND WATER TREATMENT, 51(25-27), 5248-5253, 20130701
- Multilayered polyamide membranes by spray-assisted 2-step interfacial polymerization for increased performance of trimesoyl chloride (TMC)/m-phenylenediamine (MPD)-derived polyamide membranes, JOURNAL OF MEMBRANE SCIENCE, 446, 504-512, 20131101
- Sol-gel spin coating process to fabricate a new type of uniform and thin organosilica coating on polysulfone film, MATERIALS LETTERS, 109, 130-133, 20131015
- Micropore Filling Phase Permeation of a Condensable Vapor in Silica Membranes: A Molecular Dynamics Study, JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 46(10), 659-671, 2013
- Preparation of BTESE-derived organosilica membranes for catalytic membrane reactors of methylcyclohexane dehydrogenation, JOURNAL OF MEMBRANE SCIENCE, 455, 375-383, 20140401
- High-temperature stability of PECVD-derived organosilica membranes deposited on TiO2 and SiO2-ZrO2 intermediate layers using HMDSO/Ar plasma, SEPARATION AND PURIFICATION TECHNOLOGY, 121, 13-19, 20140114
- A closer look at the development and performance of organic-inorganic membranes using 2,4,6-tris-[3(triethoxysilyl)-1-propoxyl]-1,3,5-triazine (TTESPT), RSC ADVANCES, 4(24), 12404-12407, 2014
- Development and gas permeation properties of microporous amorphous TiO2-ZrO2-organic composite membranes using chelating ligands, JOURNAL OF MEMBRANE SCIENCE, 461, 96-105, 20140701
- CO2 Permeation through Hybrid Organosilica Membranes in the Presence of Water Vapor, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 53(14), 6113-6120, 20140409
- A CO2 fixation process with waste cement powder via regeneration of alkali and acid by electrodialysis, RSC ADVANCES, 4(38), 19778-19788, 2014
- Fabrication of a layered hybrid membrane using an organosilica separation layer on a porous polysulfone support, and the application to vapor permeation, JOURNAL OF MEMBRANE SCIENCE, 464, 140-148, 20140815
- Insight into the pore tuning of triazine-based nitrogen-rich organoalkoxysilane membranes for use in water desalination, RSC ADVANCES, 4(45), 23759-23769, 2014
- Gas permeation properties through Al-doped organosilica membranes with controlled network size, JOURNAL OF MEMBRANE SCIENCE, 466, 246-252, 20140915
- Experimental and Theoretical Study on Small Gas Permeation Properties through Amorphous Silica Membranes Fabricated at Different Temperatures, JOURNAL OF PHYSICAL CHEMISTRY C, 118(35), 20323-20331, 20140904
- Synthesis and characterization of a layered-hybrid membrane consisting of an organosilica separation layer on a polymeric nanofiltration membrane, JOURNAL OF MEMBRANE SCIENCE, 472, 19-28, 20141215
- ★, Modified Gas-Translation Model for Prediction of Gas Permeation Through Microporous Organosilica Membranes, AICHE JOURNAL, 60(12), 4199-4210, 201412
- Preparation and gas permeation properties of thermally stable organosilica membranes derived by hydrosilylation, JOURNAL OF MATERIALS CHEMISTRY A, 2(3), 672-680, 2014
- Tuning the pore sizes of novel silica membranes for improved gas permeation properties via an in situ reaction between NH3 and Si-H groups, CHEMICAL COMMUNICATIONS, 51(13), 2551-2554, 2015
- Methylcyclohexane dehydrogenation for hydrogen production via a bimodal catalytic membrane reactor, AICHE JOURNAL, 61(5), 1628-1638, 201512
- Microporous organosilica membranes for gas separation prepared via PECVD using different O/Si ratio precursors, JOURNAL OF MEMBRANE SCIENCE, 489, 11-19, 20150901
- Photo-induced sol-gel processing for low-temperature fabrication of high-performance silsesquioxane membranes for use in molecular separation, CHEMICAL COMMUNICATIONS, 51(49), 9932-9935, 2015
- Plasma treatment of hydrophobic sub-layers to prepare uniform multi-layered films and high-performance gas separation membranes, APPLIED SURFACE SCIENCE, 349, 415-419, 20150915
- Pore-size evaluation and gas transport behaviors of microporous membranes: An experimental and theoretical study, AICHE JOURNAL, 61(7), 2268-2279, 201507
- CO2 Fixation Process with Waste Cement Powder via Regeneration of Alkali and Acid by Electrodialysis: Effect of Operation Conditions, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 54(25), 6569-6577, 20150701
- Plasma-assisted multi-layered coating towards improved gas permeation properties for organosilica membranes, RSC ADVANCES, 5(74), 59837-59844, 2015
- Robust organosilica membranes for high temperature reverse osmosis (RO) application: Membrane preparation, separation characteristics of solutes and membrane regeneration, JOURNAL OF MEMBRANE SCIENCE, 493, 515-523, 20151101
- Evaluating the gas permeation properties and hydrothermal stability of organosilica membranes under different hydrosilylation conditions, JOURNAL OF MEMBRANE SCIENCE, 493, 664-672, 20151101
- Reverse osmosis performance of layered-hybrid membranes consisting of an organosilica separation layer on polymer supports, JOURNAL OF MEMBRANE SCIENCE, 494, 104-112, 20151115
- Preparation of organosilica membranes on hydrophobic intermediate layers and evaluation of gas permeation in the presence of water vapor, JOURNAL OF MEMBRANE SCIENCE, 496, 156-164, 20151215
- Effect of firing temperature on the water permeability of SiO2-ZrO2 membranes for nanofiltration, JOURNAL OF MEMBRANE SCIENCE, 497, 348-356, 20160101
- Pervaporation and vapor permeation characteristics of BTESE-derived organosilica membranes and their long-term stability in a high-water-content IPA/water mixture, JOURNAL OF MEMBRANE SCIENCE, 498, 336-344, 20160115
- Network engineering of a BTESE membrane for improved gas performance via a novel pH-swing method, JOURNAL OF MEMBRANE SCIENCE, 511, 219-227, 20160801
- Tailoring the Separation Behavior of Polymer-Supported Organosilica Layered-Hybrid Membranes via Facile Post-Treatment Using HCl and HN3 Vapors, ACS APPLIED MATERIALS & INTERFACES, 8(17), 11060-11069, 20161204
- Nanofiltration performance of SiO2-ZrO2 membranes in aqueous solutions at high temperatures, SEPARATION AND PURIFICATION TECHNOLOGY, 168, 238-247, 20160810
- Plasma-enhanced chemical vapor deposition of amorphous carbon molecular sieve membranes for gas separation, RSC ADVANCES, 6(64), 59045-59049, 2016
- Propylene/propane Permeation Properties of Metal-doped Organosilica Membranes with Controlled Network Sizes and Adsorptive Properties, JOURNAL OF THE JAPAN PETROLEUM INSTITUTE, 59(4), 140-148, 201607
- Tailoring the Subnano Silica Structure via Fluorine Doping for Development of Highly Permeable CO2 Separation Membranes, CHEMNANOMAT, 2(4), 264-267, 201604
- Evaluation of non-commercial ceramic SiO2-ZrO2 and organosilica BTESE membranes in a highly oxidative medium: Performance in hydrogen peroxide, JOURNAL OF MEMBRANE SCIENCE, 520, 740-748, 20161215
- ★, Atmospheric-pressure plasma-enhanced chemical vapor deposition of microporous silica membranes for gas separation, JOURNAL OF MEMBRANE SCIENCE, 524, 644-651, 20170215
- SiO2-ZrO2 nanofiltration membranes of different Si/Zr molar ratios: Stability in hot water and acid/alkaline solutions, JOURNAL OF MEMBRANE SCIENCE, 524, 700-711, 20170215
- Pore size tuning of sol-gel-derived triethoxysilane (TRIES) membranes for gas separation, JOURNAL OF MEMBRANE SCIENCE, 524, 64-72, 20170215
- Photo-induced sol-gel synthesis of polymer-supported silsesquioxane membranes, RSC ADVANCES, 7(12), 7150-7157, 2017
- Organosilica bis(triethoxysilyl)ethane (BTESE) membranes for gas permeation (GS) and reverse osmosis (RO): The effect of preparation conditions on structure, and the correlation between gas and liquid permeation properties, JOURNAL OF MEMBRANE SCIENCE, 526, 242-251, 20170315
- Fabrication and Microstructure Tuning of a Pyrimidine-Bridged Organoalkoxysilane Membrane for CO2 Separation, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 56(5), 1316-1326, 20170208
- Pyrimidine-bridged organoalkoxysilane membrane for high-efficiency CO2 transport via mild affinity, SEPARATION AND PURIFICATION TECHNOLOGY, 178, 232-241, 20171207
- Development and permeation properties of SiO2-ZrO2 nanofiltration membranes with a MWCO of < 200, JOURNAL OF MEMBRANE SCIENCE, 535, 331-341, 20170801
- Preparation of cyclic peptide nanotube structures and molecular simulation of water adsorption and diffusion, JOURNAL OF MEMBRANE SCIENCE, 537, 101-110, 20170901
- Preparation and Gas Permeation Properties of Fluorine-Silica Membranes with Controlled Amorphous Silica Structures: Effect of Fluorine Source and Calcination Temperature on Network Size, ACS APPLIED MATERIALS & INTERFACES, 9(29), 24625-24633, 20170726
- Fabrication and CO2 permeation properties of amine-silica membranes using a variety of amine types, JOURNAL OF MEMBRANE SCIENCE, 541, 447-456, 20171101
- Gas permeation properties for organosilica membranes with different Si/C ratios and evaluation of microporous structures, AICHE JOURNAL, 63(10), 4491-4498, 201710
- Preliminary techno-economic analysis of non-commercial ceramic and organosilica membranes for hydrogen peroxide ultrapurification, CHEMICAL ENGINEERING RESEARCH & DESIGN, 125, 385-397, 201709
- Fluorine-induced microporous silica membranes: Dramatic improvement in hydrothermal stability and pore size controllability for highly permeable propylene/propane separation, JOURNAL OF MEMBRANE SCIENCE, 549, 111-119, 20180301
- Bis(triethoxysilyl)ethane (BTESE)-derived silica membranes: pore formation mechanism and gas permeation properties, JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 86(1), 63-72, 201804
- Enhanced CO2 Separation Performance for Tertiary Amine-Silica Membranes via Thermally Induced Local Liberation of CH3Cl, AICHE JOURNAL, 64(5), 1528-1539, 201812
- Facile and Scalable Flow-Induced Deposition of Organosilica on Porous Polymer Supports for Reverse Osmosis Desalination, ACS APPLIED MATERIALS & INTERFACES, 10(16), 14070-14078, 20180425
- Acid post-treatment of sol-gel-derived ethylene-bridged organosilica membranes and their filtration performances, JOURNAL OF MEMBRANE SCIENCE, 556, 196-202, 20180615
- Tailoring a Thermally Stable Amorphous SiOC Structure for the Separation of Large Molecules: The Effect of Calcination Temperature on SiOC Structures and Gas Permeation Properties, ACS OMEGA, 3(6), 6369-6377, 201806
- Atmospheric-pressure plasma-enhanced chemical vapor deposition of UV-shielding TiO2 coatings on transparent plastics, MATERIALS LETTERS, 228, 479-481, 20181001
- Fluorine Doping of Microporous Organosilica Membranes for Pore Size Control and Enhanced Hydrophobic Properties, ACS OMEGA, 3(8), 8612-8620, 201808
- Preparation, characterization, and evaluation of TiO2-ZrO2 nanofiltration membranes fired at different temperatures, JOURNAL OF MEMBRANE SCIENCE, 564, 691-699, 20181015
- Role of Amine Type in CO2 Separation Performance within Amine Functionalized Silica/Organosilica Membranes: A Review, APPLIED SCIENCES-BASEL, 8(7), 201807
- Pervaporation dehydration of aqueous solutions of various types of molecules via organosilica membranes: Effect of membrane pore sizes and molecular sizes, SEPARATION AND PURIFICATION TECHNOLOGY, 207, 108-115, 20181222
- Improved thermal and oxidation stability of bis( triethoxysilyl) ethane ( BTESE)- derived membranes, and their gas- permeation properties, JOURNAL OF MATERIALS CHEMISTRY A, 6(46), 23378-23387, 20181214
- ★, Atmospheric-Pressure Plasma-Enhanced Chemical Vapor Deposition of Hybrid Silica Membranes, JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 51(9), 732-739, 201809
- UV-Protective TiO2 Thin Films with High Transparency in Visible Light Region Fabricated via Atmospheric-Pressure Plasma-Enhanced Chemical Vapor Deposition, ACS APPLIED MATERIALS & INTERFACES, 10(49), 42657-42665, 20181212
- Hydrothermal stability and permeation properties of TiO2-ZrO2 (5/5) nanofiltration membranes at high temperatures, SEPARATION AND PURIFICATION TECHNOLOGY, 212, 1001-1012, 20190401
- Tailoring Ultramicroporosity To Maximize CO2 Transport within Pyrimidine-Bridged Organosilica Membranes, ACS APPLIED MATERIALS & INTERFACES, 11(7), 7164-7173, 20190220
- Effects of Calcination Condition on the Network Structure of Triethoxysilane (TRIES) and How Si-H Groups Influence Hydrophobicity Under Hydrothermal Conditions, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 58(9), 3867-3875, 20190306
- Molecular dynamics simulation study on the mechanisms of liquid-phase permeation in nanopores, SEPARATION AND PURIFICATION TECHNOLOGY, 220, 259-267, 20190801
- Tailoring the molecular sieving properties and thermal stability of carbonized membranes containing polyhedral oligomeric silsesquioxane (POSS)-polyimide via the introduction of norbornene, JOURNAL OF MEMBRANE SCIENCE, 582, 59-69, 20190715
- Tailoring the microstructure and permeation properties of bridged organosilica membranes via control of the bond angles, JOURNAL OF MEMBRANE SCIENCE, 584, 56-65, 20190815
- Free glycerol removal from monoglyceride using TiO2-ZrO2 nanofiltration membranes, SEPARATION AND PURIFICATION TECHNOLOGY, 224, 366-372, 20191001
- Selective water vapor permeation from steam/non-condensable gas mixtures via organosilica membranes at moderate-to-high temperatures, JOURNAL OF MEMBRANE SCIENCE, 589, 20191101
- Infrared-spectroscopic porosimetry: Development and application for characterization of hundred-nanometer-thick porous thin films, THIN SOLID FILMS, 685, 299-305, 20190901
- Vapor-permeation dehydration of isopropanol using a flexible and thin organosilica membrane with high permeance, JOURNAL OF MEMBRANE SCIENCE, 588, 20191015
- TiO2-ZrO2 membranes of controlled pore sizes with different Ti/Zr ratios for nanofiltration, JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 92(1), 12-24, 201910
- Evaluating the chemical stability of metal oxides in SO3 and applications of SiO2-based membranes to O-2/SO3 separation, JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 102(11), 6946-6956, 201911
- Ceramic-Supported Polyhedral Oligomeric Silsesquioxane-Organosilica Nanocomposite Membrane for Efficient Gas Separation, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 58(47), 21708-21716, 20191127
- Phase inversion/sintering-induced porous ceramic microsheet membranes for high-quality separation of oily wastewater, JOURNAL OF MEMBRANE SCIENCE, 595, 20200201
- Effect of Sintering Temperature on Sol-Gel Synthesis of Porous Polymeric Membrane Supported Layered Hybrid Organosilica Membranes and Their Vapor Permeation Property, KAGAKU KOGAKU RONBUNSHU, 45(5), 177-183, 2019
- Energy-efficient separation of organic liquids using organosilica membranes via a reverse osmosis route, JOURNAL OF MEMBRANE SCIENCE, 597, 20200301
- Development of high-performance sub-nanoporous SiC-based membranes derived from polytitanocarbosilane, JOURNAL OF MEMBRANE SCIENCE, 598, 20200315
- Development of an acetylacetonate-modified silica-zirconia composite membrane applicable to gas separation, JOURNAL OF MEMBRANE SCIENCE, 599, 20200401
- Chemical-free cleaning of fouled reverse osmosis (RO) membranes derived from bis(triethoxysilyl)ethane (BTESE), JOURNAL OF MEMBRANE SCIENCE, 601, 20200301
- Pore size tuning of bis(triethoxysilyl)propane (BTESP)-derived membrane for gas separation: Effects of the acid molar ratio in the sol and of the calcination temperature, SEPARATION AND PURIFICATION TECHNOLOGY, 242, 20200701
- Pore subnano-environment engineering of organosilica membranes for highly selective propylene/propane separation, JOURNAL OF MEMBRANE SCIENCE, 603, 20200515
- Fine-tuned, molecular-composite, organosilica membranes for highly efficient propylene/propane separation via suitable pore size, AICHE JOURNAL, 66(4), 202004
- Tuning the microstructure of polycarbosilane-derived SiC(O) separation membranes via thermal-oxidative cross-linking, SEPARATION AND PURIFICATION TECHNOLOGY, 248, 20201001
- High-performance molecular-separation ceramic membranes derived from oxidative cross-linked polytitanocarbosilane, JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 103(8), 4473-4488, 202008
- Evaluation of experimentally obtained permeance based on module simulation: How should permeance be evaluated?, AICHE JOURNAL, 66(7), 202007
- Pervaporation removal of methanol from methanol/organic azeotropes using organosilica membranes: Experimental and modeling, JOURNAL OF MEMBRANE SCIENCE, 610, 20200901
- Filtration of surfactant-stabilized oil-in-water emulsions with porous ceramic membranes: Effects of membrane pore size and surface charge on fouling behavior, JOURNAL OF MEMBRANE SCIENCE, 610, 20200901
- Experimental study and modeling of organic solvent reverse osmosis separations through organosilica membranes, AICHE JOURNAL, 66(9), 202009
- Amino-decorated organosilica membranes for highly permeable CO2 capture, JOURNAL OF MEMBRANE SCIENCE, 611, 20201001
- Al2O3 nanofiltration membranes fabricated from nanofiber sols: Preparation, characterization, and performance, JOURNAL OF MEMBRANE SCIENCE, 611, 20201001
- A carbon-silica-zirconia ceramic membrane with CO2 flow-switching behaviour promising versatile high-temperature H-2/CO2 separation, JOURNAL OF MATERIALS CHEMISTRY A, 8(44), 23563-23573, 20201128
- SiC mesoporous membranes for sulfuric acid decomposition at high temperatures in the iodine-sulfur process, RSC ADVANCES, 10(68), 41883-41890, 20201117
- Hydrocarbon permeation properties through microporous fluorine-doped organosilica membranes with controlled pore sizes, JOURNAL OF MEMBRANE SCIENCE, 619, 20210201
- Improved performance of organosilica membranes for steam recovery at moderate-to-high temperatures via the use of a hydrothermally stable intermediate layer, JOURNAL OF MEMBRANE SCIENCE, 620, 20210215
- Correlation Between Ammonia Selectivity and Temperature Dependent Functional Group Tuning of GO, IEEE TRANSACTIONS ON NANOTECHNOLOGY, 20, 129-136, 2021
- ★, Ultrafast Synthesis of Silica-Based Molecular Sieve Membranes in Dielectric Barrier Discharge at Low Temperature and Atmospheric Pressure, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 143(1), 35-40, 20210113
- TiO2 Coatings Via Atmospheric-Pressure Plasma-Enhanced Chemical Vapor Deposition for Enhancing the UV-Resistant Properties of Transparent Plastics, ACS OMEGA, 6(2), 1370-1377, 20210119
- Design of a SiOC network structure with oxidation stability and application to hydrogen separation membranes at high temperatures, JOURNAL OF MEMBRANE SCIENCE, 625, 20210501
- Metal-induced microporous aminosilica creates a highly permeable gas-separation membrane, MATERIALS CHEMISTRY FRONTIERS, 5(7), 20210407
External Funds
Acceptance Results of Competitive Funds
- KAKENHI, 2013, 2014
- KAKENHI, 2015, 2017
- KAKENHI(Grant-in-Aid for Scientific Research (C)), 2018, 2020