CAJ | 학술논문

合成了双醛淀粉尿素螯合树脂(DASU)，并对其做了红外(FT-IR)和扫描电镜(SEM)分析，研究了不同条件下不同取代度的产品对Cu(Ⅱ)的吸附性能。结果表明：所有样品对Cu(Ⅱ)均有一定程度的吸附作用，在pH5~6时吸附能力最强，较高的初始浓度有利于吸附，但高取代度的样品对Cu(Ⅱ)并不具有显著提高的吸附能力，吸附主要靠物理吸附和化学吸附。
합성료쌍철정분뇨소오합수지(DASU)，병대기주료홍외(FT-IR)화소묘전경(SEM)분석，연구료불동조건하불동취대도적산품대Cu(Ⅱ)적흡부성능。결과표명：소유양품대Cu(Ⅱ)균유일정정도적흡부작용，재pH5~6시흡부능력최강，교고적초시농도유리우흡부，단고취대도적양품대Cu(Ⅱ)병불구유현저제고적흡부능력，흡부주요고물리흡부화화학흡부。
Dialdehyde starch based urea chelating resin was first synthesized and characterized by FT-IR spectra and scanning electron microscope (SEM)analysis.Several samples with different substitutions were conducted to study their absorption capacity to Cu (Ⅱ)ions in different conditions.The results re-vealed that all samples showed adsorption capacity to Cu (Ⅱ)ions to a certain extent,and they had the muximum adsorption capacity if pH was controlled at 5.0~6.0.Moreover,higher initial Cu (Ⅱ)ion con-centrations were favorable to absorption.However,the samples of higher degrees of substitution didn't hold significant adsorption capacity to Cu (Ⅱ)ions.The adsorption process mainly depended on physical and chemical adsorption.