JAEA
  • help
  • PC | SP
  • JP | EN
          
Refine your search：     
Report No.
 - 
Clear All
Search Results: Records 1-5 displayed on this page of 5
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Ion-selective adsorption of lead by a two-dimensional terbium oxalate framework

Nankawa, Takuya; Sekine, Yurina; Yamada, Teppei*

Bulletin of the Chemical Society of Japan, 95(5), p.825 - 829, 2022/05

https://doi.org/10.1246/bcsj.20220055
 Times Cited Count：2 Percentile：26.09(Chemistry, Multidisciplinary)

Advances in hazardous metal ion removal are essential for wastewater clean-up to tackle the global water shortage crisis. Here, we report a Pb-selective adsorbent using a Tb oxalate framework (TOF) synthesized by a one-pot hydrothermal method. The TOF has a two-dimensional sheet structure, in which the interlayer space functions as an ion exchangeable site. Sorption tests using a mixed-ion solution containing Pb$$^{2+}$$, Cd$$^{2+}$$, Mn$$^{2+}$$, Co$$^{2+}$$, Ni$$^{2+}$$, Cu$$^{2+}$$, Na$$^{+}$$, K$$^{+}$$, Mg$$^{2+}$$, and Ca$$^{2+}$$ showed that the TOF has high selectivity for Pb$$^{2+}$$ among other metal ions. The saturated adsorption capacity of the TOF for Pb$$^{2+}$$ was 276 mg g$$^{-1}$$, which is higher than that of conventional adsorbents. Furthermore, the TOF exhibited reversible Pb$$^{2+}$$ adsorption/desorption and could be used for at least three cycles. The results showed that TOF has excellent potential as an adsorbent for removing Pb$$^{2+}$$, and because of its reusability, it is also a promising material for wastewater clean-up.

Journal Articles

Environment purification technology using ionizing radiation

Kojima, Takuji

Hoshasen, 29(2), p.77 - 85, 2003/04

http://ci.nii.ac.jp/naid/10011475414

The radiation technologies for environment conservation are useful for purification of pollutants contained in flue gas or wastewater at very low concentration which is difficult to perform by conventional methods: removal using fine filter or charcoals and decomposition using catalysis at high temperature, etc. This paper reviews some examples of radiation application to removal of SO$$_2$$ and NO$$_x$$ from coal-combustion flue gases, decomposition of dioxin in gas emitted through the incinerator, decomposition of gaseous toxic volatile organic compounds in off gas, reuse of agricultural wastes.

Oral presentation

Coprecipitation of radioactive strontium in sea water during formation of biogenic calcite

Onuki, Toshihiko; Kozai, Naofumi; Sakamoto, Fuminori; Yu, Q.; Yamashita, Mitsuo*; Horiike, Takumi*; Utsunomiya, Satoshi*

no journal, , 

We have studied the elimination of Sr from sea water into biogenic calcite. Biogenic calcite were produced at 30$$^{circ}$$ by a maline microbe of TK2d. SEM and TEM analyses showed that needle shaped precipitates containing Ca and Sr was formed when 1.0 mM Sr was added in the solution with TK2d strain. XAFS analysis indicates that coordination environment of Sr in the biotic coprecipitates differs from that in the abiotic one.

Oral presentation

Removal of alkaline earth metals during the formation of manganese oxide using biomass toward elimination of $$^{226}$$Ra

Kato, Tomoaki; Onuki, Toshihiko; Yu, Q.*

no journal, , 

In this research, we have demonstrated the uptake of alkaline earth metals toward elimination of Ra$$^{2+}$$ during the formation of biomass-MnOx. I concluded that higher elimination of Ba in solution was observed at initial stage of biomass MnOx production within 2h after KMnO$$_{4}$$ addition and decreased of surf ace area associated with aggregation of colloidal MnOx occur the decreased of elimination efficiency of Ba. We also found that positive correlation is observed between the removal of alkaline earth metal and ionic radius.

Patent

光触媒の製造方法、還元方法、及び光触媒

杉田 剛; 下山 巖

not registered

JP, 2020-107863  Patent licensing information

【課題】入手が容易な材料から環境負荷の低い方法で光触媒を製造する方法を提供する。 【解決手段】粘土鉱物と塩とを混合し、500℃以上で加熱することによる、光触媒の製造方法。前記光触媒と金属化合物を混合し、光を照射することによって、前記金属化合物を還元することを特徴とする前記金属化合物の還元方法。

5 (Records 1-5 displayed on this page)
  • 1