T. Kajiyama, Shohei Sakai, Jun G. Inoue, Toru Yoshino, Satoshi Ohmuro, Kensuke Arai, H. Kokusen
The synthesis of metal ion adsorbents from modified banana fibers comprising a Schiff base was investigated. The adsorption properties of a metal ion adsorbent were evaluated, and banana fiber (BF)- g -(glycidyl methacrylate)(GMA)(BF-GMA) were synthesized. A Schiff base 2,2’-{iminobis[ethane-2,1-diylnitrilo(E)methylidine]}bisphenol was synthesized via a reaction of diethylenetriamine and 5-bromo-salicyialdehyde in methanol. A metal ion adsorbent (BF-GMA(Br)) was synthesized via a reaction of the Schiff base with BF-GMA. Over 90% of La 3+ , Gd 3+ , Tm 3+ , Pr 3+ , Tb 3+ , Yb 3+ , Nd 3+ , Dy 3+ , Lu 3+ , Sm 3+ , Ho 3+ , Eu 3+ , and Er 3+ were adsorbed in a pH range of 6.0–6.6 by the synthesized metal ion adsorbent. Almost 100% of In 3+ at a pH value of 3.0–4.0 and 95% of Ga 3+ at a pH value of 3.9 were absorbed, thereby showing the maximum adsorption percentage. Almost 15% and 25% of In 3+ was adsorbed at a pH value of 1.4–1.6 and 1.8, respectively. Adsorption of Ga 3+ was barely observed in the pH range of 1.4–1.8. These results show that banana fibers can be utilized as metal ion adsorbents.
{"title":"Synthesis of a Metal Ion Adsorbent from Banana Fibers and Its Adsorption Properties for Rare Metal Ions","authors":"T. Kajiyama, Shohei Sakai, Jun G. Inoue, Toru Yoshino, Satoshi Ohmuro, Kensuke Arai, H. Kokusen","doi":"10.5182/JAIE.27.57","DOIUrl":"https://doi.org/10.5182/JAIE.27.57","url":null,"abstract":"The synthesis of metal ion adsorbents from modified banana fibers comprising a Schiff base was investigated. The adsorption properties of a metal ion adsorbent were evaluated, and banana fiber (BF)- g -(glycidyl methacrylate)(GMA)(BF-GMA) were synthesized. A Schiff base 2,2’-{iminobis[ethane-2,1-diylnitrilo(E)methylidine]}bisphenol was synthesized via a reaction of diethylenetriamine and 5-bromo-salicyialdehyde in methanol. A metal ion adsorbent (BF-GMA(Br)) was synthesized via a reaction of the Schiff base with BF-GMA. Over 90% of La 3+ , Gd 3+ , Tm 3+ , Pr 3+ , Tb 3+ , Yb 3+ , Nd 3+ , Dy 3+ , Lu 3+ , Sm 3+ , Ho 3+ , Eu 3+ , and Er 3+ were adsorbed in a pH range of 6.0–6.6 by the synthesized metal ion adsorbent. Almost 100% of In 3+ at a pH value of 3.0–4.0 and 95% of Ga 3+ at a pH value of 3.9 were absorbed, thereby showing the maximum adsorption percentage. Almost 15% and 25% of In 3+ was adsorbed at a pH value of 1.4–1.6 and 1.8, respectively. Adsorption of Ga 3+ was barely observed in the pH range of 1.4–1.8. These results show that banana fibers can be utilized as metal ion adsorbents.","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"9 1","pages":"57-62"},"PeriodicalIF":0.0,"publicationDate":"2016-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88969069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A novel chemosensor based on benzocrown-bipyridine conjugate appending an octadecyl group, 1, was prepared to investigate its ion sensing ability in acetonitrile. The addition of Li as the guest caused change in color of 1 from yellow to colorless. This is owing to blue shift in intramolecular charge transfer (CT) absorption at around 400 nm, which is associated with the a 1:1 host-guest complex formation. The guest-induced color change of 1 was used for alkali and alkaline metal ion sensing. It was found that 1 detected Ca with highest sensitivity.
{"title":"Ion Detection by Intramolecular Charge-transfer Absorption of Benzocrown-bipyridinium Conjugate Appending Octadecyl Chain","authors":"Kuwabara Tetsuo, Satake Ryota, Guo Haocheng, Katsumata Masayo, Takahashi Masaki, Suzuki Yasutada, Ohtsuki Takashi, Sato Tetsuya, Kurokawa Hideki","doi":"10.5182/JAIE.27.27","DOIUrl":"https://doi.org/10.5182/JAIE.27.27","url":null,"abstract":"A novel chemosensor based on benzocrown-bipyridine conjugate appending an octadecyl group, 1, was prepared to investigate its ion sensing ability in acetonitrile. The addition of Li as the guest caused change in color of 1 from yellow to colorless. This is owing to blue shift in intramolecular charge transfer (CT) absorption at around 400 nm, which is associated with the a 1:1 host-guest complex formation. The guest-induced color change of 1 was used for alkali and alkaline metal ion sensing. It was found that 1 detected Ca with highest sensitivity.","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"1 1","pages":"27-32"},"PeriodicalIF":0.0,"publicationDate":"2016-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72749078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study of adsorption behavior of cesium and strontium ions with banana fiber adsorbent","authors":"T. Kajiyama, H. Kokusen","doi":"10.5182/JAIE.27.8","DOIUrl":"https://doi.org/10.5182/JAIE.27.8","url":null,"abstract":"","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"27 1","pages":"8-12"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77174057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of High-Efficient Ion Exchange Materials by Utilizing Biological Functions and Biomaterials","authors":"M. Goto","doi":"10.5182/JAIE.27.33","DOIUrl":"https://doi.org/10.5182/JAIE.27.33","url":null,"abstract":"","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"1 1","pages":"33-41"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90052455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Placing of Crystalline Sodium Hypochlorite Pentahydrate on the Market","authors":"Tomotake Asawa, Y. Sugiyama, Yukimoto Kobayashi","doi":"10.5182/jaie.27.42","DOIUrl":"https://doi.org/10.5182/jaie.27.42","url":null,"abstract":"","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"267 1","pages":"42-46"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76956434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tadayuki Takahashi, T. Ito, Seongyun Kim, H. Tokuda, Nobumichi Nagano, K. Hitomi, K. Ishii
{"title":"Selective Separation of Sr(II) from High Level Radioactive Waste Using Crown Ether in Ionic Liquid Extraction System","authors":"Tadayuki Takahashi, T. Ito, Seongyun Kim, H. Tokuda, Nobumichi Nagano, K. Hitomi, K. Ishii","doi":"10.5182/jaie.27.21","DOIUrl":"https://doi.org/10.5182/jaie.27.21","url":null,"abstract":"","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"56 1","pages":"21-26"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84998029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An advanced reprocessing process with the nuclide separations in HCl system and the nuclide separation processes from high-level radioactive liquid wastes generated from the existing or its improved reprocessing process have been proposed and developed by using the ion exchange techniques. In addition, the ion exchange techniques and the synthesis methods of ion exchange adsorbents developed in our nuclide separation studies were applied to the decontamination techniques for the contaminated water generated by severe accidents.
{"title":"イオン交換による核種分離を伴う核燃料再処理技術の新展開と放射性物質の分離除去技術への応用;イオン交換による核種分離を伴う核燃料再処理技術の新展開と放射性物質の分離除去技術への応用;Development of Advanced Reprocessing Process with Nuclide Separation by Use of Ion Exchange Techniques and Their Application for Removal Methods of Radioactive Nuclides","authors":"Tatsuya Suzuki","doi":"10.5182/JAIE.27.13","DOIUrl":"https://doi.org/10.5182/JAIE.27.13","url":null,"abstract":"An advanced reprocessing process with the nuclide separations in HCl system and the nuclide separation processes from high-level radioactive liquid wastes generated from the existing or its improved reprocessing process have been proposed and developed by using the ion exchange techniques. In addition, the ion exchange techniques and the synthesis methods of ion exchange adsorbents developed in our nuclide separation studies were applied to the decontamination techniques for the contaminated water generated by severe accidents.","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"2015 33","pages":"13-20"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91548573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"溶媒抽出用試薬を導入した新規キレート分離材の合成;溶媒抽出用試薬を導入した新規キレート分離材の合成;Synthesis and evaluation of a new chelate type separation material","authors":"H. Kokusen","doi":"10.5182/JAIE.26.1","DOIUrl":"https://doi.org/10.5182/JAIE.26.1","url":null,"abstract":"","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"12 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83467236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"分子認識イオン交換能を持つ超分子複合体の開発研究;分子認識イオン交換能を持つ超分子複合体の開発研究;Study on the Development of Supramolecular Complexes Possessing Molecular Recognition and Ion Exchange Functions","authors":"Takashi Hayashita","doi":"10.5182/jaie.26.15","DOIUrl":"https://doi.org/10.5182/jaie.26.15","url":null,"abstract":"","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"20 1","pages":"15-22"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84279592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Shibata, N. Seko, H. Amada, N. Kasai, S. Saiki, H. Hoshina, Yuji Ueki
One of the most important tasks for recovering living area contaminated by the accident at the Fukushima Daiichi Nuclear Power Station is to secure a safe water supply. Therefore, we developed a Cs adsorbent wherein ammonium 12-molybdophosphate (AMP) was loaded by radiation-induced graft polymerization on a ˆbrous trunk material and crosslinked to form a structure wherein the loaded AMP is stable. To optimize the synthesis of this Cs adsorbent, a 9G (G: dimethacrylate) polyethylene glycol dimethacrylate (PEGDM) was used as a crosslinking reagent and the adding volume was adjusted to 1 mol in a monomer solution to synthesize the Cs adsorbent with a 200 degree of grafting. Our evaluation of the adsorption performance of the Cs adsorbent indicates that it can be applied to a standard pH range for drinking water (from pH 5.8 to 8.6) and captures su‹cient Cs, even in a solution containing 1 mg/L of K, Ca, Mg, and Na ions, to yield a Cs concentration comparable to that of stream water.
恢复受福岛第一核电站事故污染的生活区最重要的任务之一是确保安全的供水。因此，我们开发了一种Cs吸附剂，该吸附剂通过辐射诱导接枝聚合将12-磷酸钼铵(AMP)负载在一个- brous主干材料上并交联形成一种结构，其中负载的AMP是稳定的。为优化Cs吸附剂的合成，以9G (G:二甲丙烯酸酯)聚乙二醇二甲基丙烯酸酯(PEGDM)为交联剂，在单体溶液中加入量调节为1 mol，合成接枝度为200的Cs吸附剂。我们对Cs吸附剂吸附性能的评估表明，它可以应用于饮用水的标准pH范围(从pH 5.8到8.6)，并且即使在含有1mg /L的K, Ca, mg和Na离子的溶液中也可以捕获大量的Cs，从而产生与溪水相当的Cs浓度。
{"title":"Development of an Adsorbent for Cs Removal Synthesized by Radiation-Induced Graft Polymerization","authors":"T. Shibata, N. Seko, H. Amada, N. Kasai, S. Saiki, H. Hoshina, Yuji Ueki","doi":"10.5182/JAIE.26.9","DOIUrl":"https://doi.org/10.5182/JAIE.26.9","url":null,"abstract":"One of the most important tasks for recovering living area contaminated by the accident at the Fukushima Daiichi Nuclear Power Station is to secure a safe water supply. Therefore, we developed a Cs adsorbent wherein ammonium 12-molybdophosphate (AMP) was loaded by radiation-induced graft polymerization on a ˆbrous trunk material and crosslinked to form a structure wherein the loaded AMP is stable. To optimize the synthesis of this Cs adsorbent, a 9G (G: dimethacrylate) polyethylene glycol dimethacrylate (PEGDM) was used as a crosslinking reagent and the adding volume was adjusted to 1 mol in a monomer solution to synthesize the Cs adsorbent with a 200 degree of grafting. Our evaluation of the adsorption performance of the Cs adsorbent indicates that it can be applied to a standard pH range for drinking water (from pH 5.8 to 8.6) and captures su‹cient Cs, even in a solution containing 1 mg/L of K, Ca, Mg, and Na ions, to yield a Cs concentration comparable to that of stream water.","PeriodicalId":16331,"journal":{"name":"Journal of ion exchange","volume":"33 1","pages":"9-14"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80087947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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