S-Space College of Agriculture and Life Sciences (농업생명과학대학) Dept. of Landscape Architecture and Rural System Engineering (생태조경·지역시스템공학부) Theses (Ph.D. / Sc.D._생태조경·지역시스템공학부)
SYNTHESIS AND APPLICATION OF ION IMPRINTED AND SELECTIVE ADSORBENTS FOR CONTAMINANT REMOVAL FROM AQUEOUS SOLUTIONS
수중 오염물질의 제거를 위한 이온 각인 및 선택적 흡착제의 합성 및 적용
- 농업생명과학대학 생태조경.지역시스템공학부(지역시스템공학전공)
- Issue Date
- 서울대학교 대학원
- 학위논문 (박사)-- 서울대학교 대학원 : 농업생명과학대학 생태조경.지역시스템공학부(지역시스템공학전공), 2018. 8. 김성배.
- This dissertation deals with the synthetization, characterization, and evaluation of selective Cu(II) ion removal by Cu(II) imprinted mesoporous silica SBA-15 and Cu(II) imprinted silica gel, and selective nitrate removal by nitrate selectivity enhanced quaternary ammonium functionalized mesoporous silica SBA-15 and nitrate selectivity enhanced quaternary ammonium functionalized silica gel.
Surface-imprinted poly(ethyleneimine) (PEI) grafted mesoporous silica SBA-15 (Cu-imprinted PEI-SBA-15) was synthesized and characterized for selective Cu(II) sorption from aqueous solutions. To enhance Cu(II) selectivity of Cu-imprinted PEI-SBA-15, Cu(II) loading on PEI-SBA-15 was increased through Cu(II) sorption under high-molar-concentration ratios of chloride (Cl-) and Cu(II) ions. Then, selective Cu(II) sorption sites were increased through imprinting processes (crosslinking and elution) on Cu-loaded PEI-SBA-15. Selectivity experiments were performed using Cu-imprinted PEI-SBA-15 prepared at various [Cl-]/[Cu(II)] ratios, ranging from 2 to 1000. In multinary solutions containing divalent ions such as Cu(II), Pb(II), Zn(II), Ni(II), and Co(II), Cu(II), selectivity was highest (79.62) at a [Cl-]/[Cu(II)] ratio of 500
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