화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.32, No.4, 661-666, April, 2015
DOI10.1007/s11814-014-0269-y  Export Citation
Synthesis of some novel adsorbents for antimicrobial activity and removal of arsenic from drinking water
Hafiz Badaruddin Ahmad, Gul E Yasmin, Shafique Ahmad Arain1, †, Ijaz Ahmad Bhatti2, and Mazhar Hussain
  • Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
  • 1Department of Chemistry, Shah Abdul Latif University, Khairpur, Pakistan
  • 2Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
E-mail:
Arsenic contamination in drinking water is alarming for human beings; especially for those people who use ground water directly for drinking purposes. Attempts were made to design adsorbents for the removal of arsenic. Silica gel has been tested as adsorbent for such removal. After optimizing concentration, time and amount of adsorbent, Langmuir, Freundlich and D-R isotherms are drawn to determine different parameters for the evaluation of arsenic adsorption. Kinetics of adsorption is also calculated by using pseudo first order and pseudo second order rate quations. Zerovalent iron and manganese nanoparticles have been coated on silica gel and efficiency of removal of arsenic have been determined. Iron and manganese particles have been stabilized with polyvinyl alcohol (PVA). Similarly mixtures of iron-silver and manganese-silver nanoparticles have been synthesized by stabilizing with PVA, which show better efficiency than individual nanoparticles of iron and manganese coated silica gel. The newly synthesized adsorbents are very much effective for not only arsenic but also for antimicrobial activity. Concentration of arsenic in water has been determined spectrophotometrically using variamine blue as indicator.
Keywords:Arsenic;Contamination;Zerovalent;Herbicides;Mesoporous Alumina
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