欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
在添加剂聚苯乙烯磺酸钠（PSS）作用下合成了纳米球状CaCO3，并使用扫描电镜（SEM）对其形貌进行表征。通过静态批实验的方法研究了pH值、离子强度、温度等因素对铀酰离子在纳米球状CaCO3上吸附的影响。结果表明：铀酰离子的吸附率随体系pH的增大而升高，随体系离子强度的增大而降低；温度增加时，纳米球状CaCO3对铀酰离子的平衡吸附量明显增加。热力学研究表明，UO2/2＋在纳米球状CaCO3上的吸附反应是吸热自发进行的。
英文摘要：
Calcium carbonate nanoparticles were prepared in the presence of poly（styrene sulfonate） （PSS）. The samples were characterized by scanning electron microscopy （SEM）. The sorption of UO2/2＋ onto CaCOs nanoparticles was investigated as a function of pH, ionic strength and temperature under ambient conditions using batch technique. The results indi- cate that sorption of UO2/2＋ onto CaCO3 nanoparticles increases with increasing pH and decreasing ionic strength. With increasing temperature, maximum adsorption of UO2/2＋ increases. The thermodynamic data indicate that the sorption of UO2/2/＋ onto CaCO3 nanoparti- cles is an endothermic and spontaneous process.
同期刊论文项目
同项目期刊论文
Synthesis of graphene-based Pt nanoparticles by a one-step in situ plasma approach under mild condit
Synthesis of graphene-based nanomaterials and their application in energy-related and environmental-
Low-temperature plasma synthesis of carbon nanotubes and graphene based materials and their fuel cel
Synthesizing the Composites of Graphene Oxide-Wrapped Polyaniline Hollow Microspheres for High-Perfo
Critical evaluation of adsorption-desorption hysteresis of heavy metal ions from carbon nanotubes: i
Determination of chemical affinity of graphene oxide nanosheets with radionuclides investigated by m
Enhanced photo-reduction and removal of Cr(VI) on reduced graphene oxide decorated with TiO2 nanopar
Sorption of radiocobalt(II) onto MWCNTs: effects of solid content, contact time, pH, ionic strength,
Fabrication of beta-cyclodextrin conjugated magnetic HNT/iron oxide composite for high-efficient dec
Plasma grafting montmorillonite/iron oxide composite with β-cyclodextrin and its application for hig
Synthesis of magnetic ion-imprinted composites and selective separation and preconcentration of U(VI
Highly active MnO2 nanosheet synthesis from graphene oxide templates and their application in effici
Retention of Pb(II) by a Low-Cost Magnetic Composite Prepared by Environmentally-Friendly Plasma Tec
Retention mechanisms and microstructure of Eu(III) on manganese dioxide studied by batch and high re
Sorption behavior of U(VI) onto Chinese bentonite: Effect of pH, ionic strength, temperature and hum
Effect of humic acid on nickel(II) sorption to Ca-montmorillonite by batch and EXAFS techniques stud
Adsorption of Cu(II) on ss-cyclodextrin modified multiwall carbon nanotube/iron oxides in the absenc
期刊信息
位置：