物理化学学报 >> 2015, Vol. 31 >> Issue (Suppl): 95-100.doi: 10.3866/PKU.WHXB2014Ac13

研究论文 上一篇    下一篇

碳气凝胶的制备及其对水溶液中铀(VI)的吸附

顾泽兴1, 涂昌能2, 王云1, 杨吉军1, 刘宁1, 廖家莉1, 杨远友1, 唐军1   

  1. 1 四川大学原子核科学技术研究所, 辐射物理与技术教育部重点实验室, 成都610064;
    2 四川鑫顺矿业股份有限公司, 成都610041
  • 发布日期:2015-05-20
  • 通讯作者: 唐军, 涂昌能 E-mail:tangjun@scu.edu.cn;tuchangn@sohu.com
  • 基金资助:

    国家自然科学基金(91226108, 11274234)资助项目

Preparation of Carbon Aerogels and Adsorption of Uranium(VI) from Aqueous Solution

GU Ze-Xing1, TU Chang-Neng2, WANG Yun1, YANG Ji-Jun1, LIU Ning1, LIAO Jia-Li1, YANG Yuan-You1, TANG Jun1   

  1. 1 Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, P. R. China;
    2 Sichuan Xinshun Mining Co. Ltd., Chengdu 610041, P. R. China
  • Published:2015-05-20
  • Contact: TANG Jun, TU Chang-Neng E-mail:tangjun@scu.edu.cn;tuchangn@sohu.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (91226108, 11274234).

摘要:

利用冻干法将氧化石墨烯(GO)和碳纳米管(CNTs)的混合液凝胶制备成碳气凝胶, 并通过扫描电镜(SEM)和傅里叶变换红外(FTIR)光谱对该气凝胶进行表征. 通过考查吸附剂的量、pH值、初始浓度以及时间对吸附的影响来了解碳气凝胶吸附铀(VI)元素的过程. 结果显示, 碳气凝胶可以有效移除水溶液中的铀(VI)元素,是一种有潜力的吸附剂.

关键词: 石墨烯/纳米碳管, 液凝胶, 气凝胶, 吸附, 铀(VI)

Abstract:

Carbon aerogels were prepared, using a freeze-drying method, from graphene oxide (GO) and carbon nanotube (CNT) hybrid hydrogels. The resulting aerogels were characterized using scanning electron microscopy and Fourier-transformed infrared spectroscopy. The adsorption of U(VI) on the GO-CNT aerogels was studied as a function of solid dosage, pH value, initial concentration, and contact time. The results showed that GO-CNT aerogels have high uranium(VI) removal capacities, and are promising sorbents.

Key words: Graphene/carbon nanotube, Hydrogel, Aerogel, Adsorption, Uranium(VI)

MSC2000: 

  • O647