Polysulfone에 Di-(2-ethylhexyl)-phosphoric acid와 Carbon Nanotubes를 고정화한 PSf/D2EHPA/CNTs 비드의 제조와 Sr(II)의 제거 특성

이민규; 윤종원; 서정호; Min-Gyu Lee; Jong-Won Yun; Jung-Ho Suh

Korean Chemical Engineering Research, Vol.55, No.6, 854-860, December, 2017

DOI10.9713/kcer.2017.55.6.854 Export Citation

Polysulfone에 Di-(2-ethylhexyl)-phosphoric acid와 Carbon Nanotubes를 고정화한 PSf/D2EHPA/CNTs 비드의 제조와 Sr(II)의 제거 특성

Preparation of PSf/D2EHPA/CNTs Beads Immobilized with Carbon Nanotubes and Di-(2-ethylhexyl)-phosphoric acid on Polysulfone and Removal Characteristics of Sr(II)

이민규, 윤종원¹, 서정호^{2, †}

부경대학교 화학공학과, 48547 부산광역시 남구 신선로 365
¹대구대학교 생명공학과, 38453 경상북도 경산시 진량읍 대구대로 201
²울산과학대학교 환경화학공업과, 44610 울산광역시 남구 대학로 57

Min-Gyu Lee, Jong-Won Yun¹, and Jung-Ho Suh^{2, †}

Department of Chemical Engineering, Pukyoung National University, 365, Sinseon-ro, Nam-gu, Busan, 48547, Korea
¹Department of Biotechnology, Daegu University, 201, Daegu-daero, Jinryang-eup, Kyungsan, Gyeongbuk, 38453, Korea
²Department of Environmental & Chemical Industry, Ulsan College, 57, Daehak-ro, Nam-gu, Ulsan, 44610, Korea

E-mail:

초록

본 연구에서는 di-(2-ethylhexyl)-phosphoric acid (D2EHPA)와 carbon nanotubes (CNTs)를 polysulfone (PSf)에 고정화시켜 PSf/D2EHPA/CNTs 비드를 제조하였으며, 제조한 비드에 의한 Sr(II)의 제거특성을 살펴보았다. Scanning electron microscopy (SEM), Fourier transform infrared spectrometer (FTIR) 및 Thermo gravimetric analysis (TGA) 분석을 통하여 PSf/D2EHPA/CNTs 비드의 형태적 특성들을 조사하였다. PSf/D2EHPA/CNTs 비드에 의한 Sr(II)의 제거는 운전시간 60 min 정도에서 평형에 도달하였으며, 속도 실험결과는 유사 2차 속도식에 잘 부합하는 것으로 나타났다. 또한 PSf/D2EHPA/CNTs 비드에 의한 Sr(II)의 제거에서 Langmuir 식으로부터 구한 최대 제거량은 4.75 mg/g이었다. PSf/D2EHPA/CNTs 비드에 의한 Sr(II)의 제거효율은 추출제 D2EHPA 만을 사용하는 경우보다 CNTs를 첨가함으로써 Sr(II)의 제거량이 2.5배 정도 향상되는 결과를 보였다.

PSf/D2EHPA/CNTs beads were prepared by immobilizing extractant di-(2-ethylhexyl)- phosphoric acid (D2EHPA) and adsorbent carbon nanotubes (CNTs) on polysulfone (PSf), and the adsorption characteristics of Sr(II) on the beads were studied. The morphological characteristics of the prepared PSf/D2EHPA/CNTs beads were observed by scanning electron microscopy (SEM), thermo gravimetric analysis (TGA), and Fourier transform infrared spectrometer (FTIR). The equilibrium time for the removal of Sr(II) by PSf/D2EHPA/CNTs beads was 60 min. The experimental kinetic data followed pseudo-second-order model more than pseudo-first-order kinetics model. The maximum removal capacity of Sr(II) obtained from Langmuir isotherm was 4.75 mg/g. The removal efficiencies of Sr (II) by PSf/D2EHPA/ CNTs beads were improved 2.5 times by adding the adsorbent CNTs more than by using only the extractant D2EHPA.

Keywords:Carbon nanotubes;CNTs;Di-(2-ethylhexyl)-phosphoric acid;D2EHPA;Immobilization;Polysulfone;Sr(II) removal

[References]

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Lee CH, Kam SK, Suh JH, Lee MG, IEEC 2017, Submitted(2017).

[Referenced By]

[1] Ochiai S, Nagao S, Yamamoto M, Itono T, Kashiwaya K, Fukui K, Iida H, Appl. Radiat. Isot., 81, 366 (2013)

[2] Ahmadpour A, Zabihi M, Tahmasbi M, Bastami TR, J. Hazard. Mater., 182(1-3), 552 (2010)

[3] Hilton J, NoLan L, Jarvis KE, Geo. Cosmo. Acta, 61(6), 1115 (1997)

[4] Kam SK, Lee DW, Moon MJ, Lee MG, J. Environ. Sci. Int., 12(10), 1061 (2003)

[5] Janin A, Blais JF, Mercier G, Drogui P, J. Hazard. Mater., 169(1-3), 1099 (2009)

[6] Arslan G, Tor A, Cengeloglu Y, Ersoz M, J. Hazard. Mater., 165(1-3), 729 (2009)

[7] Ochoa NA, Illanes C, Marchese J, Basualto C, Valenzuela F, Sep. Purif. Technol., 52(1), 39 (2006)

[8] Sitko R, Zawisza B, Malicka E, Trends Analytical Chem., 37, 22 (2012)

[9] Peng XJ, Li YH, Luan ZK, Di ZC, Wang HY, Tian BH, Jia ZP, Chem. Phys. Lett., 376(1-2), 154 (2003)

[10] Biesaga M, Pyrzynska K, J. Sep. Sci., 29, 2241 (2006)

[11] Li YH, Di Z, Ding J, Wu D, Luan Z, Zhu Y, Water Res., 39, 605 (2005)

[12] Chen CL, Wang XK, Ind. Eng. Chem. Res., 45(26), 9144 (2006)

[13] Wu CH, J. Colloid Interface Sci., 311(2), 338 (2007)

[14] Li YH, Wang S, Luan Z, Ding J, Xu C, Wu D, Carbon, 41, 1057 (2003)

[15] Vellaichamy S, Palanivelu K, J. Chem., 49(7), 882 (2010)

[16] Ozcan S, Tor A, Aydin ME, Desalination, 259(1-3), 179 (2010)

[17] Tofighy MA, Mohammadi T, Desalination, 258(1-3), 182 (2010)

[18] Tae G, Kornfield JA, Hubbell JA, Biomaterials, 26(25), 5259 (2005)

[19] Kebiche-Senhadji O, Mansouri L, Tingry S, Seta P, Benamor M, J. Membr. Sci., 310(1-2), 438 (2008)

[20] Yadav KK, Singh DK, Anitha M, Varshney L, Singh H, Sep. Purif. Technol., 118, 350 (2013)

[21] Ma YX, Li YF, Yang LQ, Zhao GH, Polym. Compos., 34(2), 204 (2013)

[22] Cheon KH, Choi JH, Shin SW, Choi SJ, J. Environ. Sci. Int., 23(9), 1609 (2014)

[23] Belkhouche NE, Didi MA, Vellemin D, Solvent Extr. Ion Exch., 23(5), 677 (2005)

[24] Rahman ROA, Ibrahim HA, Hanafy M, Monem NMA, Chem. Eng. J., 157(1), 100 (2010)

[25] Fujikawa V, Fukui M, Radiochim. Acta, 76, 153 (1997)

[26] Li YH, Di ZC, Luan ZK, Ding J, Zuo H, Wu XQ, Xu CL, Wu DH, J. Environ. Sci., 16(2), 208 (2004)

[27] Lee MG, Kam SK, Suh KH, J. Environ. Sci. Int., 21(5), 623 (2012)

[28] Lagergren S, Kunglia Svenska Vetenskapsa-kademiens Handlingar, 24(4), 1-39(1898).

[29] Ho YS, McKay G, Can. J. Chem. Eng., 76(4), 822 (1998)

[30] Vipin AK, Ling S, Fugetsu B, Carbohydr. Polym., 111(13), 477 (2014)

[31] Langmuir I, J. Am. Chem. Soc., 40(9), 1361 (1918)

[32] Freundlich HMF, J. Phys. Chem., 57, 385 (1906)

[33] Lee CH, Kam SK, Suh JH, Lee MG, IEEC 2017, Submitted(2017).