Synthesis of novel functional hydrothermal carbon spheres for removal of uranium from aqueous solution
Synthesis of novel functional hydrothermal carbon spheres for removal of uranium from aqueous solution
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DOI：
10.1007/s10967-016-5003-2
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发表时间：
2016-09
影响因子：
1.6
通讯作者：
Zhong-jun Lai;Zhi-Bin Zhang;Xiaohong Cao;Ying Dai;R. Hua;Z. Le;M. Luo;Yunhai Liu
中科院分区：
文献类型：
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作者：
Zhong-jun Lai;Zhi-Bin Zhang;Xiaohong Cao;Ying Dai;R. Hua;Z. Le;M. Luo;Yunhai Liu
采用化学接枝法制备了一种新型螯合吸附剂（双-3,4-二羟基苯）对苯二胺接枝水热碳球（HCS-BDBPD）。利用FT-IR和SEM分析了HCS-BDBPD的化学结构和显微结构。通过批量实验研究了HCSs-BDBPD对铀的吸附性能，确定了废铀脱除的最佳工艺条件。结果表明，该吸附过程为自发吸热吸附过程，吸附铀的最大容量为272 mg/g，在hcs表面接枝BDBPD基团后，hcs对铀的选择性得到了提高。
A novel chelate sorbent (bis-3,4-dihydroxybenzy)p-phenylen diamine-grafted hydrothermal carbon spheres (HCS-BDBPD) had been successfully synthesized through chemical grafting method. FT-IR and SEM were used to analyze the chemical and microscopy structure of HCS-BDBPD. The batch experiments were carried out to study uranium adsorption properties of HCSs-BDBPD aimed at confirming the optimum condition for removal uranium from waste. The result showed that the sorption process was spontaneous and endothermic in nature and the maximum uranium sorption capacity of 272 mg/g was obtained under the conditions tested, the selectivity of HCSs toward uranium was improved after grafting BDBPD groups on the surface of HCSs.