Faujasite zeolite decorated with cobalt ferrite nanoparticles for improving removal and reuse in Pb

来源 :中国化学工程学报(英文版) | 被引量 : 0次 | 上传用户:zhaihoufu
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Water pollution caused by heavy metals ions has been gaining attention in recent years, increasing the interest in the development of methodologies for their efficient removal focusing on the adsorption process for these pur-poses. The current challenge faced by adsorption processes is the adequate adsorbent immobilization for removal and reuse. Thus, the present work aimed at producing a faujasite zeolite nanocomposite decorated with cobalt ferrite nanoparticles for Pb2+ions adsorption in an aqueous medium improving magnetic removal and reuse. As a result, a high surface area (434.4 m2·g?1) for the nanocomposite and an 18.93 emu·g?1 saturation magne-tization value were obtained, indicating magnetic removal in a promising material for adsorption process. The nanocomposite regeneration capacity evaluated by magnetic recovery after 24 h suspension presented a high Pb2+ion adsorptive capacity (98.4%) in the first cycle. Around 98%of the Pb2+ions were adsorbed in the second cycle. In this way, the synthesized faujasite:cobalt ferrite nanocomposite reveals itself as a promising altative in adsorption processes, aiming at a synergic effect of FAU zeolite high adsorptive activity and the cobalt ferrite nanoparticles magnetic activity, allowing for adsorbent recovery from the aqueous medium via magnetic force and successive adsorptive cycles.
其他文献
期刊
The absorption of acid gas using reactive amines is among the most widely used types of capturing technologies. However, the absorption process requires intensi
从1986获批城市规划甲级资质至今,同济规划院已走过了三十多个年头。进入新世纪,中国的城镇化拉开了宏大的城市建设大幕,同济规划院也迎来前所未有的发展机遇。在5.12汶川地震灾后重建、新疆巴楚对口援建、日喀则地区援藏城镇规划、云南云龙县定点扶贫、乡村振兴、北京副中心规划、雄安新区规划、长三角一体化示范区规划以及国土空间规划等国家重大战略中,在上海历史文化风貌区保护规划、2010年上海世博会规划设计、
期刊
上海同济城市规划设计研究院有限公司,源自同济办学哲学思想:以学术创新,推进人类社会和文明进步;以科教研发,奉献祖国富强和伟大复兴。这就是我们今天凝练而成的:"与祖国同行,以科教济世"。追溯至1920年代,同济针对当时的中国现代城市的建设发展,导入了城市建设规划设计课程。1930年代,同济城市规划设计课程已经形成群落。1940年代,以金经昌和冯纪忠先生为代表的一批同济学子在二次大战后从欧
期刊
期刊
期刊
戊型肝炎病毒(HEV)为无包膜的单股正链 RNA病毒,基因组全长约7200bp,有3个开放读码框架(ORFs):ORF1、ORF2和ORF3。感染哺乳动物的HEV主要有4个基因型,只有一个血清型。  昆虫杆状病
期刊
文中论述了桓仁发电厂 16MW扩建机组计算机监控系统、运动系统结构及完成的各种功能 ,并介绍了本系统的一些不足 This article discusses the Huanren Power Plant 16MW exp
南京市玄武中等专业学校是一所以通过凸显学校特色提升学校竞争力为特质的国家级重点职业学校,2009年9月被江苏省教育厅表彰为全省职业教育与社会教育先进集体.学校占地面积7