Green synthesized iron nanoparticles supported on pH responsive polymeric membrane for nitrobenzene reduction and fluoride rejection study: Optimization approach
作者： Piyal Mondal , Mihir Kumar Purkait
DOI: 10.1016/J.JCLEPRO.2017.09.222
关键词:
摘要: Abstract Iron nanoparticles (NPs) were prepared via Clove extract mediated green synthesis. NPs immobilized in flat asymmetric polymeric pH responsive PVDF- co -HFP membranes by blending of Polyethylene glycol methyl ether (PEGME)(M w = 5000 g/mol) and Humic acid (HA). dispersed membrane different weight percentage (0.01, 0.1 1) imparted catalytic effect reducing nitrobenzene to aniline as well enhanced fluoride rejection dead end filtration experiment. Both the process NB reduction was dependent on responsiveness membrane. High performance liquid chromatography (HPLC) analysed formation at ultra-filtration time. Aniline 15 ppm found be highest pH3 lowest 12.8 ppm at pH7 for 0.01 wt% iron impregnated 50 min. increased pH12 than due responsiveness. Fluoride studied optimized wt% from experiments with solutions. In order maximize Nitrobenzene reduction, variables (time, NPs) using Design expert software 9.0 TRIAL through ANOVA (analysis variance) combination response surface methodology (RSM) central composite design (CCD). The optimization study showed negligible error experimentally obtained values conditions maximizing (error 3.37%) 3.93%).
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