Chromium(VI) Adsorption Behavior of Silk Sericin Beads
1
조회
0
다운로드
8
인용
0
참고문헌
키워드
초록
Silk sericin (SS) has been fabricated into beads using a 1 M LiCl/DMSO solvent and utilizedas a heavy metal adsorbent. Among the various heavy metals, we targeted Cr(VI) foradsorption using SS beads and found that its adsorption depended on the coagulant usedfor the fabrication of the SS beads. When methanol was used as a coagulant, the beads hada better adsorption capacity than when ethanol was used except at pH 1. The adsorptionbehavior of Cr(VI) on the SS beads followed the BET isotherm. The maximum adsorptioncapacity was 33.76 mg/g at pH 2. The adsorption of Cr(VI) was confirmed by FT-IR and EDSanalyses. Finally, the desorption was carried out using NaOH solution, and it was found that73.19% of the adsorbed Cr(VI) could be detached.
Abstract
Silk sericin (SS) has been fabricated into beads using a 1 M LiCl/DMSO solvent and utilizedas a heavy metal adsorbent. Among the various heavy metals, we targeted Cr(VI) foradsorption using SS beads and found that its adsorption depended on the coagulant usedfor the fabrication of the SS beads. When methanol was used as a coagulant, the beads hada better adsorption capacity than when ethanol was used except at pH 1. The adsorptionbehavior of Cr(VI) on the SS beads followed the BET isotherm. The maximum adsorptioncapacity was 33.76 mg/g at pH 2. The adsorption of Cr(VI) was confirmed by FT-IR and EDSanalyses. Finally, the desorption was carried out using NaOH solution, and it was found that73.19% of the adsorbed Cr(VI) could be detached.
참고문헌 (22)
- Ahern. AM, "Protein-metal interactions in protein-colloid conjugates probed by surface-enhanced Raman spectroscopy", Langmuir, 7, pp.254~261 (1991)
- Bolte M, "Hologram formation reconsidered in dichromated", polymer cross-linking around chromium, (5), pp.195~204 (2005)
- Capar G, "Treatment of silk production wastewaters by membrane processes for sericin recovery", Journal of Membrane Science, 325, pp.920~931 (2008)
- Costa M, "Potential hazards of hexavalent chromate in our drinking water", Toxicology and Applied Pharmacology, 188, pp.1~5 (2003)
- 김무곤, "Effect of Lyoprotectant on the Solubility and Structure of Silk Sericin", International Journal of Industrial Entomology, 25(1), pp.133~137 (2012), 한국잠사학회
- Kotaś J, "Chromium occurrence in the environment and methods of its speciation", Environmental Pollution, 107, pp.263~283 (2000)
- Kundu SC, "Natural protective glue protein, sericin bioengineered by silkworms: Potential for biomedical and biotechnological applications", Prog Polym Sci, 33, pp.998~1012 (2008)
- Liu H, "Modification of sericin-free silk fibers for ligament tissue engineering application", Biomed. Mater. Res. Part B, 82B, pp.129~138 (2007)
- Mudhoo A, "Removal of heavy metals by biosorption", Environ Chem Lett, 10, pp.109~117 (2012)
- Oh H, "Preparation of silk sericin beads using LiCl", DMSO solvent and their potential as a drug carrier for oral administration, 2007, pp.8, 470~476
- HanJin Oh, "Enhanced Mechanical Property of Silk Sericin Beads Prepared fromEthanol-precipitated Sericin", International Journal of Industrial Entomology, 15(2), pp.171~174 (2007), 한국잠사학회
- 오한진, "LiCl", DMSO를 이용한 PVA와 세리신 블렌드 섬유의 제조, 2008, pp.45(1), 1~5[DOI]
- 오한진, "Preparation of Sericin Microparticles by Electrohydrodynamic Spraying and Their Application in Drug Delivery", Macromolecular Research, 19(3), pp.266~272 (2011), 한국고분자학회
- Owlad M, "Removal of Hexavalent Chromium-Contaminated Water and Wastewater: A Review", Water Air Soil Pollut, 200, pp.59~77 (2009)
- Panilaitis B, "Macrophage responses to silk", Biomaterials, 24, pp.3079~3085 (2003)
- Chung-Won Seo, "Antioxidative and Hypoglycemic Effects of Silk Fibroin", SericinMixtures in High Fat-Fed Mice, 2011, pp.23(1), 115~122[DOI]
- Snell FD, "Colorimetric methods of analysis" (1959), Van Nostrand company
- Song Y, "Removal of trivalent chromium from aqueous solutions by amphiphilic coreshell poly(methyl acrylate)", silk sericin nanospheres, 2007, pp.52, 880~884
- Sud D., "Agricultural waste material as potential adsorbent for sequestering heavy metal ions from aqueous solutions – A review", Bioresource Technology, 99, pp.6017~6027 (2008)
- Teramoto H, "Molecular orientation behavior of silk sericin film as revealed by ATR infrared spectroscopy", Biomacromolecules, 6, pp.2049~2057 (2005)
- Zhang X, "Fabrication of silk sericin nanofibers from a silk sericin-hope cocoon with electrospinning method", Int J Biol Macromol, 50, pp.337~347 (2012)
- Zhou P, "Effects of pH and Calcium Ions on the Conformational Transitions in Silk Fibroin Using 2D Raman Correlation Spectroscopy and 13C Solid-State NMR", Biochemistry, 43, pp.11302~11311 (2004)