日本語フィールド
著者：Shaimah Rinda Sari, Masayuki Tsushida, Masato Tominaga題名：Highly sensitive detection of phosphate using well-ordered crystalline cobalt oxide nanoparticles supported by multi-walled carbon nanotubes発表情報：Materials Advances (RSC Journal) 巻: 3 ページ: 2018-2025キーワード：概要：抄録：Phosphates are well-known groundwater and surface water contaminants, with even modest increases in their concentration contributing to the eutrophication of lakes and coastal waterways and thus potentially harming the environment. Consequently, sensors capable of detecting phosphate ions at concentrations below the eutrophication threshold (0.1 μM) are highly sought after. Herein, cobalt oxide nanoparticles (CoONPs) supported by polybenzimidazole (PBI)-modified multi-walled carbon nanotubes (MWCNTs) were prepared and shown to feature uniform size (3.5–5.5 nm) and limited Co phase mainly containing hexagonal Co3O4 and a minor amount of CoO. The synthesized NPs exhibited better phosphate sensing performance than previously reported polycrystalline Co wires, i.e., the CoONPs/PBI/MWCNT-modified glassy carbon electrode could detect phosphate at pH 4 and 7 at levels of 0.1 to 100 nM, that is, below the eutrophication threshold of 0.1 μM.英語フィールド
Author：Shaimah Rinda Sari, Masayuki Tsushida, Masato TominagaTitle：Highly sensitive detection of phosphate using well-ordered crystalline cobalt oxide nanoparticles supported by multi-walled carbon nanotubesAnnouncement information:Materials Advances (RSC Journal) Vol: 3 Page: 2018-2025An abstract：Phosphates are well-known groundwater and surface water contaminants, with even modest increases in their concentration contributing to the eutrophication of lakes and coastal waterways and thus potentially harming the environment. Consequently, sensors capable of detecting phosphate ions at concentrations below the eutrophication threshold (0.1 μM) are highly sought after. Herein, cobalt oxide nanoparticles (CoONPs) supported by polybenzimidazole (PBI)-modified multi-walled carbon nanotubes (MWCNTs) were prepared and shown to feature uniform size (3.5–5.5 nm) and limited Co phase mainly containing hexagonal Co3O4 and a minor amount of CoO. The synthesized NPs exhibited better phosphate sensing performance than previously reported polycrystalline Co wires, i.e., the CoONPs/PBI/MWCNT-modified glassy carbon electrode could detect phosphate at pH 4 and 7 at levels of 0.1 to 100 nM, that is, below the eutrophication threshold of 0.1 μM.