High efficient adsorption and storage of iodine on S, N co-doped graphene aerogel

Liu Beibei; Ren Xiaohua; Chen Long; Ma Xiaoxin; Chen Qiong; Sun Qidi; Zhang Lin; Si Pengchao; Ci Lijie

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High efficient adsorption and storage of iodine on S, N co-doped graphene aerogel

机译：硫，氮共掺杂石墨烯气凝胶上碘的高效吸附和储存

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High efficient adsorption of radioiodine in nuclear waste has attracted extensive attentions all over the world. In this work, we fabricated sulfur and nitrogen co-doped graphene aerogels (SN-GA) through one-step hydrothermal method, and investigated its iodine adsorption behavior including adsorption kinetics and isotherms in water. Our results reveal that SN-GA exhibits a 3D porous architecture with thiophene-S, oxidized-S, pyridine-N, pyrrole-N and graphite-N co-doped into the sp(2) carbon frameworks. The adsorption experiment showed SN-GA has a maximum iodine adsorption capacity of 999 mg g(-1) determined by Langmuir isotherm, and the adsorption process could be better described by the pseudo-second-order model.

机译：核废物中放射性碘的高效吸附引起了全世界的广泛关注。在这项工作中，我们通过一步水热法制备了硫和氮共掺杂的石墨烯气凝胶（SN-GA），并研究了其在水中的碘吸附行为，包括吸附动力学和等温线。我们的结果表明，SN-GA具有与噻吩S，氧化S，吡啶N，吡咯N和石墨N共掺杂到sp（2）碳骨架中的3D多孔结构。吸附实验表明，通过Langmuir等温线测定，SN-GA的最大碘吸附容量为999 mg g（-1），并且该吸附过程可以通过拟二阶模型更好地描述。

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来源
《Journal of Hazardous Materials》 |2019年第5期|705-715|共11页
作者
Liu Beibei; Ren Xiaohua; Chen Long; Ma Xiaoxin; Chen Qiong; Sun Qidi; Zhang Lin; Si Pengchao; Ci Lijie;
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作者单位

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

Shandong Univ, Sch Mat Sci & Engn, SDU & Rice Joint Ctr Carbon Nanomat, Minist Educ,Key Lab Liquid Solid Struct Evolut &, Jinan 250061, Shandong, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类
关键词
Doped graphene aerogel; Radioiodine; Adsorption and storage; Theoretical simulation;

机译：掺杂石墨烯气凝胶;放射性核素;吸附与储存;理论模拟;

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机译：银虚构气凝胶的碘和水共吸附评价。

High efficient adsorption and storage of iodine on S, N co-doped graphene aerogel

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