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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
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 김성배 | - |
| dc.contributor.author | 강진규 | - |
| dc.date.accessioned | 2018-11-12T01:00:51Z | - |
| dc.date.available | 2018-11-12T01:00:51Z | - |
| dc.date.issued | 2018-08 | - |
| dc.identifier.other | 000000153358 | - |
| dc.identifier.uri | https://hdl.handle.net/10371/143299 | - |
| dc.description | 학위논문 (박사)-- 서울대학교 대학원 : 농업생명과학대학 생태조경.지역시스템공학부(지역시스템공학전공), 2018. 8. 김성배. | - |
| dc.description.abstract | 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 | - |
| dc.description.tableofcontents | Chapter 1 Introduction 1
1.1 Background 2 1.2 Objectives 11 Chapter 2 Literature Review 13 2.1 Surface ion imprinting 14 2.2 Nitrate removal technology 38 Chapter 3 Enhancement of selective Cu(II) sorption through preparation of surface-imprinted mesoporous silica SBA-15 under high molar concentration ratios of chloride and copper ions 49 3.1. Materials and Methods 52 3.1.1. Preparation of PEI-SBA-15 52 3.1.2. Preparation of Cu-imprinted PEI-SBA-15 55 3.1.3. Characterization of PEI-SBA-15 and Cu-imprinted PEI-SBA-15 57 3.1.4. Cu(II) selectivity experiments 57 3.2. Results and Discussion 61 3.2.1. Characteristics of PEI-SBA-15 and Cu-imprinted PEI-SBA-15 61 3.2.2. Characteristics of PEI-SBA-15 and Cu-PEI-SBA-15 in Cu(II) selectivity 69 Chapter 4 Synthesis and characterization of Cu-imprinted PEI coated silica gel via surface imprinting 89 4.1. Materials and Methods 92 4.1.1. Synthesis of Cu-imprinted PEI coated silica gel 92 4.1.2. Characterization of PEI coated silica gel and Cu-imprinted PEI coated silica gel 96 4.1.3. Cu(II) selectivity experiments 96 4.1.4. Fixed bed column breakthrough experiments 100 4.2. Results and Discussion 102 4.2.1. Characteristics of PEI-silica gel and Cu-PEI-silica gel 102 4.2.2. Cu(II) sorption characteristics of PEI-silica gel and Cu-PEI-silica gel 106 Chapter 5 Effect of alkyl chain length of quaternary ammonium functionalized mesoporous silica on the selective nitrate removal in aqueous solution 120 5.1. Materials and Methods 123 5.1.1. Synthesis of quaternary ammonium functionalized mesoporous silica SBA-15 123 5.1.2. Characterization of Quaternary ammonium functionalized mesoporous silica 131 5.1.3. Nitrate sorption experiments 132 5.2. Results and Discussion 137 5.2.1. Characteristics of quaternary ammonium functionalized mesoporous silica SBA-15 137 5.2.2. Nitrate sorption Characteristics of quaternary ammonium functionalized mesoporous silica SBA-15 149 Chapter 6 Synthesis and characterization of Quaternary ammonium functionalized silica gel 164 6.1. Materials and Methods 167 6.1.1. Synthesis of quaternary ammonium functionalized silica gel 167 6.1.2. Characterization of Quaternary ammonium functionalized silica gel 168 6.1.3. Nitrate sorption batch experiments 170 6.1.4. Fixed bed column breakthrough experiments 174 6.2. Results and Discussion 180 6.2.1. Characteristics of quaternary ammonium functionalized silica gel 180 6.2.2. Nitrate sorption Characteristics of quaternary ammonium functionalized silica gel 186 Chapter 7 General Conclusion and Recommendations 217 7.1. General conclusion 218 7.2. Recommandations 222 Reference 224 국문초록 239 | - |
| dc.language.iso | en | - |
| dc.publisher | 서울대학교 대학원 | - |
| dc.subject.ddc | 712 | - |
| dc.title | SYNTHESIS AND APPLICATION OF ION IMPRINTED AND SELECTIVE ADSORBENTS FOR CONTAMINANT REMOVAL FROM AQUEOUS SOLUTIONS | - |
| dc.title.alternative | 수중 오염물질의 제거를 위한 이온 각인 및 선택적 흡착제의 합성 및 적용 | - |
| dc.type | Thesis | - |
| dc.contributor.AlternativeAuthor | JIN-KYU KANG | - |
| dc.description.degree | Doctor | - |
| dc.contributor.affiliation | 농업생명과학대학 생태조경.지역시스템공학부(지역시스템공학전공) | - |
| dc.date.awarded | 2018-08 | - |
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