MIP2018

COMPUTATIONALLY DESIGNED SURFACE CUM HOLLOW ACRYLAMIDE GRAFTED CHITOSAN BASED DUAL IMPRINTED POLYMER FOR ORGANIC AND INORGANIC POLLUTANT

Anupama Kumar Deepali Rahangdale
Department of Chemistry, Visvesvaraya National Institute of Technology, Nagpur-440010

Computationally designed, environmentally friendly adsorbent was synthesized by imprinting technique using low-cost natural polymer chitosan (CT) for the simultaneous removal of organic (Salicylic Acid; SA ) and inorganic (Cadmium; Cd) pollutants.1,2,3,4 CT, N-deacetylated product of chitin is second most abundant biopolymer and have been widely researched for various application due to its multi-functionality.5 Presently, very few approaches combining grafting and imprinting technique have been proposed for the simultaneous removal of inorganic and organic pollutant.6

Surface cum hollow acrylamide grafted chitosan based dual imprinted polymer (AGDMIP) was synthesized for the simultaneous removal of SA and Cd. Computational modeling studies were done for the selection of suitable grafting agent on CT as well as its interaction with targeted analytes for efficient imprinting. SEM, FTIR and XRD indicated successful preparation of AGDMIP. AGDMIP had higher BET surface area (31.8 m2/g) as compared to chitosan (16.2 m2/g). The adsorption capability of AGDMIP including adsorption kinetic, isotherms, selective adsorption, reusability and effect of initial pH, concentration, time, and dose of adsorbent were investigated. The maximum binding capacity of AGDMIP for Cd and SA were found to be 462.59±5 and 325.80±5 μmol/g, respectively. AGDMIP could be effectively applied for simultaneous removal of SA and Cd.

References:-

  1. Barceló, D. (2003). Emerging Pollutants in Water Analysis. Trends in Analytical Chemistry, 22(10):14-16.
  2. Bolong, N., Ismail, A.F., Salim, M.R., and Matsuura, T. (2009). A Review of the Effects of Emerging Contaminants in Wastewater and Options for Their Removal. Desalination, 239(1), 229–246.
  3. Beltran, A., Borrull, F., Cormack, P., and Marce, R. (2010). Molecularly-imprinted polymers: useful Sorbents for selective extractions. Trends in Analytical Chemistry, 29(11), 1363-1375.
  4. Rahangdale D., Kumar A., Archana G., Dhodapkar R.S. (2017). Ion cum molecularly dual imprinted polymer for simultaneous removal of cadmium and salicylic acid, J Mol e2630. https://doi.org/10.1002/jmr.2630
  5. Mourya, V.K., and Inamdar, N.N. (2008). Chitosan-modifications and applications : Opportunities galore. Reactive & Functional Polymers, 68: 1013–1051.
  6. Rahangdale, D., Archana, G., Dhodapkar. R., and Kumar, A. (2016). Chitosan-based bio sorbents: Modifications and application for sequestration of PPCPs and Metals for Water remediation. In: Thakur VK, Thakur MK, Kessler MR, eds.2016b, Handbook of Composite from Renewable Materials Volume 4: Functionalisation. Beverly, USA: Willey Scrivener
Anupama Kumar
Anupama Kumar
Associate Professor
Visvesvaraya National Institute of Technology








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