Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Chalermpong Saenjum"'
Autor:
Fumihiko Ogata, Yugo Uematsu, Noriaki Nagai, Ibuki Kobata, Ayako Tabuchi, Chalermpong Saenjum, Takehiro Nakamura, Naohito Kawasaki
Publikováno v:
Heliyon, Vol 9, Iss 3, Pp e14503- (2023)
In this study, waste biomass adsorbents produced from mangosteen shells (MGS) were prepared (denoted as MGS500 and MGS1000). The physical and chemical characteristics, such as scanning electron microscopy, thermogravimetric-differential thermal analy
Externí odkaz:
https://doaj.org/article/0d1c18ab35534e3992eb53e588fbf4dc
Autor:
Fumihiko Ogata, Noriaki Nagai, Chihiro Ito, Yuhei Kobayashi, Mizuki Yamaguchi, Ayako Tabuchi, Chalermpong Saenjum, Takehiro Nakamura, Naohito Kawasaki
Publikováno v:
Water Science and Technology, Vol 85, Iss 10, Pp 2827-2839 (2022)
To increase the adsorption capability of Hg2+ from aqueous media, we prepared sodium-type fine zeolite grains with various particle sizes (denoted as ZE1, ZE2 and ZE3). The particle sizes of ZE1, ZE2 and ZE3 were 16.363 ± 0.365, 1.454 ± 0.357 and 0
Externí odkaz:
https://doaj.org/article/431d79918ba3437c912445b1cf8a8779
Autor:
Yugo Uematsu, Fumihiko Ogata, Noriaki Nagai, Chalermpong Saenjum, Takehiro Nakamura, Naohito Kawasaki
Publikováno v:
Heliyon, Vol 7, Iss 7, Pp e07644- (2021)
Raw and calcined basil seeds (BS and BS1000, respectively) were evaluated for their ability to remove herbicides such as paraquat and diquat. The physicochemical properties of BS and BS1000 were determined and the effects of contact time and initial
Externí odkaz:
https://doaj.org/article/c3593bbe9d9c4dceac2fd87c341f3ab3
Autor:
Ayako Tabuchi, Fumihiko Ogata, Yugo Uematsu, Megumu Toda, Masashi Otani, Chalermpong Saenjum, Takehiro Nakamura, Naohito Kawasaki
Publikováno v:
Molecules, Vol 27, Iss 8, p 2392 (2022)
We combined a nickel–aluminum–zirconium complex hydroxide (NAZ) with colloidal silica as a binder to prepare a granulated agent for adsorbing heavy metals from aqueous media. Three samples with different particle diameters were prepared to evalua
Externí odkaz:
https://doaj.org/article/ab45b65d36794a77b09bd357b5183af3
Autor:
Fumihiko Ogata, Eri Nagahashi, Hirona Miki, Chalermpong Saenjum, Takehiro Nakamura, Naohito Kawasaki
Publikováno v:
Heliyon, Vol 6, Iss 6, Pp e04298- (2020)
Herein, to assess the adsorption capability and elucidate the adsorption mechanism of Cd(II) from the aqueous phase, virgin lignin (Lig) and calcined lignin (Lig200, Lig400, Lig600, Lig800, and Lig1000) were prepared. The characteristics, including s
Externí odkaz:
https://doaj.org/article/c67299378968443082ca41973f2c64c9
Evaluation of Adsorption Mechanism of Chromium(VI) Ion Using Ni-Al Type and Ni-Al-Zr Type Hydroxides
Autor:
Fumihiko Ogata, Noriaki Nagai, Ayako Tabuchi, Megumu Toda, Masashi Otani, Chalermpong Saenjum, Takehiro Nakamura, Naohito Kawasaki
Publikováno v:
Water, Vol 13, Iss 4, p 551 (2021)
To evaluate the feasibility of nickel–aluminum (the Ni2+:Al3+ molar ratios of 1.0:1.0 and 1.0:2.0 are denoted as NA11 and NA12, respectively) and nickel–aluminum–zirconium type (the Ni2+:Al3+:Zr4+ molar ratios of 0.9:1.0:0.09 and 0.9:2.0:0.09 a
Externí odkaz:
https://doaj.org/article/23154db18649462fa82f139df1a30cdb
Autor:
Fumihiko Ogata, Noriaki Nagai, Megumu Toda, Masashi Otani, Chalermpong Saenjum, Takehiro Nakamura, Naohito Kawasaki
Publikováno v:
Water, Vol 12, Iss 6, p 1697 (2020)
The technology of wastewater treatment involving removal of heavy metals using complex metal hydroxides is reported. In this study, complex nickel-aluminum (NA11 and NA12) and nickel-aluminum-zirconium (NAZ1 and NAZ2) hydroxides were prepared for the
Externí odkaz:
https://doaj.org/article/ac550f8aceec4d3482497f1f604aa043
Adsorption Performance on As(III) from Aqueous Solution Using the Complex Nickel–Aluminum Hydroxides
Autor:
Megumu Toda, Masashi Otani, Yuuka Izutani, Chalermpong Saenjum, Yugo Uematsu, Fumihiko Ogata, Takehiro Nakamura, Yuhei Kobayashi, Naohito Kawasaki
Publikováno v:
Chemical and Pharmaceutical Bulletin. 69:86-91
In this study, complex nickel-aluminum hydroxides were prepared at different molar ratios (NA12, NA11, NA21, NA31, and NA41), and their adsorption capability on arsenic ions (As(III)) from aqueous media was assessed. The physicochemical properties su
Publikováno v:
e-Journal of Surface Science and Nanotechnology. 18:269-274
Five kinds of activated carbon (AC1, AC2, AC3, AC4, and AC5) were prepared, and the characteristics (scanning electron microscopy images, specific surface area, pore-volume, pHpzc, surface functional groups, and surface hydroxyl groups) of each activ
Publikováno v:
YAKUGAKU ZASSHI. 140:1165-1173
Relationship between water molecules and parent and hydroxypropylated cyclodextrins (denoted as CD and HP-CD) was assessed in this paper. The trends in ad-desorption isotherms of CD for water molecule were quite different compared to those of HP-CD.