Journal of Polymer Research

, 26:41 | Cite as

Adsorptive removal of chromium(VI) using spherical resorcinol-formaldehyde beads prepared by inverse suspension polymerization

  • Khudbudin Mulani
  • Vishwanath Patil
  • Nayaku Chavan
  • Kamini DondeEmail author


The spherical cross-linked beaded polymers were prepared by condensation of resorcinol and formaldehyde in presence of tri-ethylamine by inverse suspension polymerization technique. The m-cresol, aniline, urea and thiourea were used as co-monomer and polyethylene glycol (PEG 400) was used as porogen. Paraffin oil was used as non-aqueous suspension agent. The polymeric spherical beads were prepared using various types of comonomers exhibiting range of particle size 77.62 to 158.84 μm at 90 °C and 300 rpm for 4 h. The resulting beads were analyzed by elemental analysis, particle size analysis and scanning electron microscope (SEM). The synthesized beads were used for the removal of Cr(VI) from aqueous solutions. A simple and sensitive solid phase extraction procedure was used for the determination of chromium at trace level by spectrophotometric method using 1,5-diphenylcarbazide reagent. The adsorption of Cr(VI) on the resorcinol-formaldehyde beads was monitored by energy-dispersive X-ray spectroscopy (EDX) analysis. The metal adsorption parameters such as contact time, pH, metal ion concentration and adsorbent dose were investigated. For Cr(VI), the maximum adsorption capacity was about 99% at pH 2 for the resorcinol-formaldehyde beads obtained.


Resorcinol Formaldehyde Beads Inverse suspension Chromium (VI) Adsorption kinetics 



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Copyright information

© The Polymer Society, Taipei 2019

Authors and Affiliations

  • Khudbudin Mulani
    • 1
  • Vishwanath Patil
    • 2
  • Nayaku Chavan
    • 3
  • Kamini Donde
    • 1
    Email author
  1. 1.Department of ChemistryRamnarain Ruia CollegeMumbaiIndia
  2. 2.Department of ChemistryUniversity of MumbaiMumbaiIndia
  3. 3.Polymer Science & Engineering DivisionCSIR-National Chemical LaboratoryPuneIndia

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