화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.18, No.6, 1925-1930, November, 2012
DOI10.1016/j.jiec.2012.05.005  Export Citation
Preparation of bionanoparticles derived from Spirulina platensis and its application for Cr (VI) removal from aqueous solutions
G.L. Dotto, T.R.S. Cadaval, and L.A.A. Pinto†
  • Unit Operation Laboratory, School of Chemistry and Food, Federal University of Rio Grande – FURG, 475 Engenheiro Alfredo Huch Street, 96203-900 Rio Grande, RS, Brazil
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Spirulina platensis nanoparticles were prepared by mechanical agitation and were applied to removal Cr (VI) from aqueous solutions. Nanoparticles preparation was function of stirring rate and contact time. In the optimal conditions, Cr (VI) removal by nanoparticles as a function of pH and initial ion concentration was carried out. The optimal conditions for preparation were 10,000 rpm and 20 min, and the nanoparticles presented mean diameter of 215.6 nm and polydispersity index of 0.151. The best conditions for Cr (VI) removal were at pH 4 and ion concentration of 250 mg L^(-1), and the Cr (VI) removal percentage was 99.1%.
Keywords:Biosorbent;Ion removal;Nanoparticles;Polydispersity index
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