| 000 | 00000nam c2200205 c 4500 | |
| 001 | 000046132290 | |
| 005 | 20221031091053 | |
| 007 | ta | |
| 008 | 220622s2022 ulkad bmAC 000c eng | |
| 040 | ▼a 211009 ▼c 211009 ▼d 211009 | |
| 041 | 0 | ▼a eng ▼b kor |
| 085 | 0 | ▼a 0510 ▼2 KDCP |
| 090 | ▼a 0510 ▼b 6D5 ▼c 1226 | |
| 100 | 1 | ▼a 조준희, ▼g 趙俊喜 |
| 245 | 1 0 | ▼a Fabrication and characterization of polymer adsorptive membranes for hexavalent chromium removal / ▼d Joon Hee Jo |
| 260 | ▼a Seoul : ▼b Graduate School, Korea University, ▼c 2022 | |
| 300 | ▼a viii, 68장 : ▼b 삽화, 도표 ; ▼c 26 cm | |
| 500 | ▼a 지도교수: 이정현 | |
| 502 | 0 | ▼a 학위논문(석사)-- ▼b 고려대학교 대학원: ▼c 화공생명공학과, ▼d 2022. 8 |
| 504 | ▼a 참고문헌: 장 57-67 | |
| 530 | ▼a PDF 파일로도 이용가능; ▼c Requires PDF file reader(application/pdf) | |
| 653 | ▼a star polymer ▼a adsorptive membrane ▼a adsorbent ▼a thin film composite membrane ▼a interfacial polymerization ▼a hexavalent chromium | |
| 776 | 0 | ▼t Fabrication and characterization of polymer adsorptive membranes for hexavalent chromium removal ▼w (DCOLL211009)000000268930 |
| 900 | 1 0 | ▼a Jo, Joon Hee, ▼e 저 |
| 900 | 1 0 | ▼a 이정현, ▼g 李政炫, ▼e 지도교수 |
| 900 | 1 0 | ▼a Lee, jung-Hyun, ▼e 지도교수 |
| 945 | ▼a ITMT |
Electronic Information
| No. | Title | Service |
|---|---|---|
| 1 | Fabrication and characterization of polymer adsorptive membranes for hexavalent chromium removal (10회 열람) |
View PDF Abstract Table of Contents |
Holdings Information
| No. | Location | Call Number | Accession No. | Availability | Due Date | Make a Reservation | Service |
|---|---|---|---|---|---|---|---|
| No. 1 | Location Science & Engineering Library/Stacks(Thesis)/ | Call Number 0510 6D5 1226 | Accession No. 123069544 | Availability Available | Due Date | Make a Reservation | Service |
| No. 2 | Location Science & Engineering Library/Stacks(Thesis)/ | Call Number 0510 6D5 1226 | Accession No. 123069545 | Availability Available | Due Date | Make a Reservation | Service |
Contents information
Abstract
There is a strong demand for the material that can effectively remove highly toxic hexavalent chromium (Cr(VI)) metal ions from wastewater. Here, a new class of a Cr(VI)-adsorptive membrane are assembled with a Cr(VI)-adsorptive and crosslinkable star polymer. The poly(acryloyl hydrazide)-branched star polymer (PAH-SP) with the high density of amine groups exhibited very fast and high Cr(VI) adsorption while being able to be incorporated into a selective layer fabricated by interfacial polymerization (IP). The IP-fcx PAH-SP (PAH-TFC) membrane synergistically rejected Cr(VI) species via a combination of adsorption (under acidic conditions) and membrane filtration (under basic conditions) mechanisms over the entire pH range. Furthermore, the PAH-TFC membrane was more resistant to oxidation by acidic Cr(VI) than commercial reverse osmosis (RO) and nanofiltration membranes because of the self-sacrificing effect from its numerous amine groups. Consequently, when compared with a commercial RO membrane (Cr(VI) rejection of ~55% at pH 3), PAH-TFC exhibited significantly higher Cr(VI) rejection under acidic conditions (~99.5% at pH 3) while showing comparable Cr(VI) rejection under basic conditions and water permeance. Furthermore, PAH-TFC had excellent regeneration ability, which can maintain its Cr(VI) rejection above the commercial RO level by proper base/acid rinsing.
Table of Contents
Abstracts i Contents ⅲ List of Figures iⅴ List of Tables ⅶi Chapter 1. Introduction 1 Chapter 2. Materials and Experimental Methods 4 2.1. Materials 4 2.2. Synthesis of the PAH-SP polymer 4 2.3. Fabrication of the PAH-TFC membrane 7 2.4. Characterization of the materials 9 2.5. Cr(VI) adsorption test of the PAH-SP polymer 9 2.6. Membrane performance 11 2.7. Regeneration 12 Chapter 3. Results and Discussion 14 3.1. Characterization of PAH-SP 14 3.2. Performance optimization of the PAH-TFC membrane 26 3.3. Structures and properties of the membranes 33 3.4. Cr(VI) removal performance of the membranes 41 3.5. Regeneration of the PAH-TFC membrane 52 Chapter 4. Conclusion 56 References 57 국문 초록 68
