Boron assisted low temperature immobilization of iodine adsorbed by silver-coated silica gel
To immobilize the radioactive iodine isotopes, a series of borosilver silica gel glasses with iodine loaded in silver-coated silica gel ranging from 20 to 30 wt% (I− content in each sample was 8 wt%) had been successfully immobilized by muffle furnace from 450 °C to 550 °C for 6 h. With the increase...
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| Veröffentlicht in: | Journal of nuclear materials 2019-12, Vol.526, p.151758, Article 151758 |
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| container_title | Journal of nuclear materials |
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| creator | Wei, Guilin Li, Bingsheng Zhang, Zhentao Chen, Shunzhang Shu, Xiaoyan Wang, Xiao Liu, Yi Xie, Yi Shao, Dadong Lu, Xirui |
| description | To immobilize the radioactive iodine isotopes, a series of borosilver silica gel glasses with iodine loaded in silver-coated silica gel ranging from 20 to 30 wt% (I− content in each sample was 8 wt%) had been successfully immobilized by muffle furnace from 450 °C to 550 °C for 6 h. With the increase of I− in silver-coated silica gel, optimum sintering temperatures corresponding to the maximum amorphous fraction in each system decreased from 550 °C (0.98) to 490 °C (0.68) and finally to 460 °C (0.66). The IR spectrums results show that the vitrified matrix is mainly consisted of [BO3] and [SiO4]. The SEM-EDS patterns show that iodine is uniformly distributed in the sample loaded with 20 wt% of iodine in silver-coated silica gel. In addition, the specimen shows lower porosity with higher amorphous fraction. Our findings demonstrate the potential of boron for the immobilization of silver-coated silica gel with different radioactive iodine loadings. |
| doi_str_mv | 10.1016/j.jnucmat.2019.151758 |
| format | Article |
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With the increase of I− in silver-coated silica gel, optimum sintering temperatures corresponding to the maximum amorphous fraction in each system decreased from 550 °C (0.98) to 490 °C (0.68) and finally to 460 °C (0.66). The IR spectrums results show that the vitrified matrix is mainly consisted of [BO3] and [SiO4]. The SEM-EDS patterns show that iodine is uniformly distributed in the sample loaded with 20 wt% of iodine in silver-coated silica gel. In addition, the specimen shows lower porosity with higher amorphous fraction. Our findings demonstrate the potential of boron for the immobilization of silver-coated silica gel with different radioactive iodine loadings.</description><identifier>ISSN: 0022-3115</identifier><identifier>EISSN: 1873-4820</identifier><identifier>DOI: 10.1016/j.jnucmat.2019.151758</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Amorphous fraction ; Boron ; Coating ; Coatings ; Different iodine loadings ; Elements distribution ; Immobilization ; Iodine ; Iodine isotopes ; Iodine radioisotopes ; Isotopes ; Low temperature ; Low temperature immobilization ; Muffle furnaces ; Porosity ; Silica ; Silica gel ; Silica glass ; Silicon dioxide ; Sintering (powder metallurgy) ; Stress concentration</subject><ispartof>Journal of nuclear materials, 2019-12, Vol.526, p.151758, Article 151758</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Dec 1, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-2b890479871b5a6a27c16a2b283a06847d0b479661258703dbf4a1bbfafb790c3</citedby><cites>FETCH-LOGICAL-c337t-2b890479871b5a6a27c16a2b283a06847d0b479661258703dbf4a1bbfafb790c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0022311519304544$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Wei, Guilin</creatorcontrib><creatorcontrib>Li, Bingsheng</creatorcontrib><creatorcontrib>Zhang, Zhentao</creatorcontrib><creatorcontrib>Chen, Shunzhang</creatorcontrib><creatorcontrib>Shu, Xiaoyan</creatorcontrib><creatorcontrib>Wang, Xiao</creatorcontrib><creatorcontrib>Liu, Yi</creatorcontrib><creatorcontrib>Xie, Yi</creatorcontrib><creatorcontrib>Shao, Dadong</creatorcontrib><creatorcontrib>Lu, Xirui</creatorcontrib><title>Boron assisted low temperature immobilization of iodine adsorbed by silver-coated silica gel</title><title>Journal of nuclear materials</title><description>To immobilize the radioactive iodine isotopes, a series of borosilver silica gel glasses with iodine loaded in silver-coated silica gel ranging from 20 to 30 wt% (I− content in each sample was 8 wt%) had been successfully immobilized by muffle furnace from 450 °C to 550 °C for 6 h. With the increase of I− in silver-coated silica gel, optimum sintering temperatures corresponding to the maximum amorphous fraction in each system decreased from 550 °C (0.98) to 490 °C (0.68) and finally to 460 °C (0.66). The IR spectrums results show that the vitrified matrix is mainly consisted of [BO3] and [SiO4]. The SEM-EDS patterns show that iodine is uniformly distributed in the sample loaded with 20 wt% of iodine in silver-coated silica gel. In addition, the specimen shows lower porosity with higher amorphous fraction. Our findings demonstrate the potential of boron for the immobilization of silver-coated silica gel with different radioactive iodine loadings.</description><subject>Amorphous fraction</subject><subject>Boron</subject><subject>Coating</subject><subject>Coatings</subject><subject>Different iodine loadings</subject><subject>Elements distribution</subject><subject>Immobilization</subject><subject>Iodine</subject><subject>Iodine isotopes</subject><subject>Iodine radioisotopes</subject><subject>Isotopes</subject><subject>Low temperature</subject><subject>Low temperature immobilization</subject><subject>Muffle furnaces</subject><subject>Porosity</subject><subject>Silica</subject><subject>Silica gel</subject><subject>Silica glass</subject><subject>Silicon dioxide</subject><subject>Sintering (powder metallurgy)</subject><subject>Stress concentration</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMouK7-BCHguWs-miY9iS5-wYIXvQkhSVNJaZs1SVfWX2-W7t3LDMO87zvMA8A1RiuMcHXbrbpxMoNKK4JwvcIMcyZOwAILTotSEHQKFggRUlCM2Tm4iLFDCLEasQX4fPDBj1DF6GKyDez9D0x22Nqg0hQsdMPgtevdr0ou63wLnW_caKFqog86O_QeRtfvbCiMV4eIPDmj4JftL8FZq_por459CT6eHt_XL8Xm7fl1fb8pDKU8FUSLGpW8FhxrpipFuMG5aiKoQpUoeYN0XlcVJkxwRBvdlgpr3apW8xoZugQ3c-42-O_JxiQ7P4Uxn5SEkppjUQuaVWxWmeBjDLaV2-AGFfYSI3kAKTt5BCkPIOUMMvvuZp_NL-ycDTIaZ0djGxesSbLx7p-EP9gHf0Y</recordid><startdate>20191201</startdate><enddate>20191201</enddate><creator>Wei, Guilin</creator><creator>Li, Bingsheng</creator><creator>Zhang, Zhentao</creator><creator>Chen, Shunzhang</creator><creator>Shu, Xiaoyan</creator><creator>Wang, Xiao</creator><creator>Liu, Yi</creator><creator>Xie, Yi</creator><creator>Shao, Dadong</creator><creator>Lu, Xirui</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>7ST</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope><scope>SOI</scope></search><sort><creationdate>20191201</creationdate><title>Boron assisted low temperature immobilization of iodine adsorbed by silver-coated silica gel</title><author>Wei, Guilin ; 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| subjects | Amorphous fraction Boron Coating Coatings Different iodine loadings Elements distribution Immobilization Iodine Iodine isotopes Iodine radioisotopes Isotopes Low temperature Low temperature immobilization Muffle furnaces Porosity Silica Silica gel Silica glass Silicon dioxide Sintering (powder metallurgy) Stress concentration |
| title | Boron assisted low temperature immobilization of iodine adsorbed by silver-coated silica gel |
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