SCI和EI收录∣中国化工学会会刊

›› 2012, Vol. 20 ›› Issue (3): 426-432.

• Festschrift in Honor of Professor Gordon McKay on occasion of his retirement • Previous Articles     Next Articles

Assessment of Sericin Biosorbent for Selective Dye Removal

CHEN Xinqing1, LAM Koon Fung1, MAK Shuk Fong1, CHING Wai Kwong1, NG Tsz Nok1, YEUNG King Lun1,2   

  1. 1. Department of Chemical and Biomolecular Engineering;
    2. Division of Environment, the Hong Kong University of Science and Technology, Hong Kong, China
  • Received:2012-03-15 Revised:2012-04-04 Online:2012-08-17 Published:2012-06-28
  • Supported by:
    Supported by the Hong Kong Research Grant Council(605009);the Hong Kong Innovation Technology Fund(ITS/108/09FP);the Environment and Conservation Fund(ECWW11EG02)

Assessment of Sericin Biosorbent for Selective Dye Removal

CHEN Xinqing1, LAM Koon Fung1, MAK Shuk Fong1, CHING Wai Kwong1, NG Tsz Nok1, YEUNG King Lun1,2   

  1. 1. Department of Chemical and Biomolecular Engineering;
    2. Division of Environment, the Hong Kong University of Science and Technology, Hong Kong, China
  • 通讯作者: YEUNG King Lun, E-mail: kekyeung@ust.hk
  • 基金资助:
    Supported by the Hong Kong Research Grant Council(605009);the Hong Kong Innovation Technology Fund(ITS/108/09FP);the Environment and Conservation Fund(ECWW11EG02)

Abstract: The silk sericin is the main residue in silk production and it is found to be a low cost and efficient biosorbent.In this study,sericin was characterized with various techniques including SEM(scanning electron microscope),XRD,N2 physisorption,FTIR(Fourier transformed infrared spectroscopy) and XPS(X-ray photoelectron spectroscopy).The nitrogen content of sericin was ca.8.5 mmol·g-1 according to elemental analysis.Dye adsorp-tion by sericin biosorbent was investigated with the acid yellow(AY),methylene blue(MB) and copper(II) phthalocyanine-3,4'4″4'″-tetrasulfonic acid(CuPc) dyes from water.Sericin displayed large capacity for AY and CuPc adsorption with adsorption capacities of respectively 3.1 and 0.35 mmol·g-1,but it did not adsorbed methylene blue dye.This selectivity is due to the basicity of amide groups in sericin biosorbents.

Key words: dye adsorption, silk protein, biosorbent

摘要: The silk sericin is the main residue in silk production and it is found to be a low cost and efficient biosorbent.In this study,sericin was characterized with various techniques including SEM(scanning electron microscope),XRD,N2 physisorption,FTIR(Fourier transformed infrared spectroscopy) and XPS(X-ray photoelectron spectroscopy).The nitrogen content of sericin was ca.8.5 mmol·g-1 according to elemental analysis.Dye adsorp-tion by sericin biosorbent was investigated with the acid yellow(AY),methylene blue(MB) and copper(II) phthalocyanine-3,4'4″4'″-tetrasulfonic acid(CuPc) dyes from water.Sericin displayed large capacity for AY and CuPc adsorption with adsorption capacities of respectively 3.1 and 0.35 mmol·g-1,but it did not adsorbed methylene blue dye.This selectivity is due to the basicity of amide groups in sericin biosorbents.

关键词: dye adsorption, silk protein, biosorbent