登录    注册    忘记密码

详细信息

氧化石墨烯对Th(Ⅳ)的吸附特性研究     被引量:3

Study on the Adsorption of Th(Ⅳ) on Graphene Oxide

文献类型:期刊文献

中文题名:氧化石墨烯对Th(Ⅳ)的吸附特性研究

英文题名:Study on the Adsorption of Th(Ⅳ) on Graphene Oxide

作者:李雪[1];吕庆梅[1];方雁峰[1];唐晓平[1]

机构:[1]绍兴文理学院元培学院

年份:2014

卷号:37

期号:10

起止页码:104

中文期刊名:环境科学与技术

外文期刊名:Environmental Science & Technology

收录:CSTPCD、、北大核心2011、CSCD_E2013_2014、北大核心、CSCD

基金:国家自然科学基金资助项目(11204180);浙江省钱江人才资助项目(2012R10074)

语种:中文

中文关键词:氧化石墨烯;吸附;Th(Ⅳ)

外文关键词:graphene oxide; adsorption; Th( Ⅳ )

中文摘要:针对污染水体中的放射性核素去除问题,采用Hummers法制备了氧化石墨烯,利用红外光谱、拉曼光谱、透射电镜和Zeta电位对氧化石墨烯的结构和表面形貌进行了表征。采用静态批式法研究Th(Ⅳ)在氧化石墨烯上的吸附行为,探讨了pH值、离子强度、腐殖酸等因素对吸附的影响。实验结果表明,pH值对吸附的影响很大,离子强度对吸附几乎没有影响;在pH<5时,腐殖酸浓度对吸附起到了促进作用,浓度越大对吸附的影响越强烈。研究结果表明氧化石墨烯可以作为放射性核素处理的一种潜在吸附材料。

外文摘要:For research on the treatment of radionuclides contaminated wastewaters, graphene oxide (GO) was prepared by Hummers methods, and characterized by infrared spectroscopy, Raman spectra, transmission electron microscope and zeta potential. The adsorption of Th ( Ⅳ ) on GO was studied by batch technique. Effect of pH, ionic strength, humic acid ( HA ) and fulvic acid(FA) on the adsorption of Th( Ⅳ ) on GO was also investigated. Results indicated that the adsorption of Th(Ⅳ) is strongly dependent on solution pH, but is independent on ionic strength. In the presence of HA/FA, the adsorption of Th ( Ⅳ ) on GO increased below solution pH 5.0, while the adsorption of Th ( Ⅳ ) on GO decreased above solution pH 5.0. Results suggest that GO may be a promising candidate for cost-effective treatment of radionuclides contaminated wastewater.

参考文献:

正在载入数据...

版权所有©绍兴文理学院 重庆维普资讯有限公司 渝B2-20050021-8
渝公网安备 50019002500408号 违法和不良信息举报中心