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典型文献
A novel polystyrene-poly(hydroxamic acid) interpenetrating polymer network and its adsorption towards rare earth ions
文献摘要:
A novel polystyrene-poly(hydroxamic acid) interpenetrating network resin (PS-PHA IPNs) was success-fully synthesized by suspension polymerization and interpenetrating network technology.The effects of various experimental parameters,including pH,contact time and initial concentrations of rare earth ions on the adsorption capacity were discussed in detail.Under the condition of pH 4.0 (La3+),1.0 (Ce3+) and 3.0 (Y3+),respectively,PS-PHA IPNs can reach equilibrium adsorption in 6 h and get maximum adsorption capacities (1.08,1.43 and 1.36 mmol/g).The adsorption process of PS-PHA IPNs for La(Ⅲ),Ce(Ⅲ) and Y(Ⅲ) ions can be described by liquid membrane diffusion,particle diffusion and chemical reaction.The adsorption process is a spontaneous and endothermic process and can be better simulated by Langmuir adsorption isotherm.The studies of SEM-EDS indicate that rare earth ions are adsorbed on the surface of PS-PHA IPNs.Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis further prove that rare earth ions are chemisorbed on the surface of PS-PHA IPNs.These results reveal that the as-prepared PS-PHA IPNs is a promising adsorbent for adsorption of rare earth ions due to their higher adsorption capacity than other adsorbents.
文献关键词:
作者姓名:
Xiaoyan Cao;Qing Wang;Shuai Wang;Ruilin Man
作者机构:
College of Chemistry and Chemical Engineering,Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources,Central South University,Changsha 410083,China;School of Chemical and Environmental Engineering,Jiangxi Province Engineering Research Center of Ecological Chemical Industry,Jiujiang University,Jiujiang 332005,China
引用格式:
[1]Xiaoyan Cao;Qing Wang;Shuai Wang;Ruilin Man-.A novel polystyrene-poly(hydroxamic acid) interpenetrating polymer network and its adsorption towards rare earth ions)[J].稀土学报(英文版),2022(01):127-134
A类:
IPNs
B类:
novel,polystyrene,hydroxamic,acid,interpenetrating,network,its,adsorption,towards,earth,resin,PHA,was,success,fully,synthesized,by,suspension,polymerization,technology,effects,various,experimental,parameters,including,contact,initial,concentrations,capacity,were,discussed,detail,Under,condition,La3+,Ce3+,Y3+,respectively,can,reach,equilibrium,get,maximum,capacities,process,described,liquid,membrane,diffusion,particle,chemical,reaction,spontaneous,endothermic,better,simulated,Langmuir,isotherm,studies,EDS,indicate,that,adsorbed,surface,Fourier,transform,infrared,spectroscopy,FTIR,ray,photoelectron,XPS,analysis,further,prove,chemisorbed,These,results,reveal,prepared,promising,due,their,higher,than,adsorbents
AB值:
0.468365
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