Abstract:
Nanoparticles are cluster of atoms having at least one dimension and of size in range of 1-100 nm. Several plant extracts have been considered for the purpose of utilization of their secondary metabolites to synthesize metal nanoparticles from metal ions by their reduction. Water pollution due to discharge of untreated industrial effluents is a serious environmental and public health issue. The presence of organic pollutants such as polycyclic aromatic hydrocarbons causes worldwide concern because of their mutagenic and carcinogenic effects. PAHs cause nervous system damage, mental retardation, renal kidney disease etc. In current research, plant mediated zinc nanoparticle were synthesized from Moringa oleifera and Coriandrum sativum (ZnO-Mo and ZnO-Cs). Fourier transform infrared spectroscopy (FTIR) confirmed synthesis by identifying the specific functional groups. Synthesized material’s adsorption capacity was measured by conducting batch experiments at variable parameters of initial concentrations, different dose and contact time to remove the PAH (naphthalene and anthracene) from aqueous media. Zinc nanoparticles synthesized from Moringa oleifera shows the maximum adsorption capacity (ZnO-Mo) 98.73%. Removal (%) for naphthalene by ZnO-Mo was observed as 97%, 92% and 95% at 1mg, 3mg and 5mg, respectively. Under optimum conditions at initial concentration 7ppm and adsorbent dose 5mg, ZnO-Mo shows maximum adsorption capacity of 98.73% than other biosorbents, ZnO-Cs have 96%. Overall, ZnO-Mo is best adsorbent in this experimentation for elimination of PAH (Naphthalene) from aqueous media. Pseudo second order kinetics model was best fit for above shared adsorption resluts.
Page(s):
155-155
DOI:
DOI not available
Published:
Journal: Abstract Book on Global Science Technology and Management Conference, Volume: 0, Issue: 0, Year: 2023
Keywords:
Pollutants
,
Moringa oleifera
,
decontamination
,
Coriandrum sativum
,
Zinc Oxide Nanobiosorbents