Polyaniline cellulose for the reduction of hexavalent chromium (Cr6+) to trivalent chromium (Cr3+) /
De Leon, Shaeena G.
Polyaniline cellulose for the reduction of hexavalent chromium (Cr6+) to trivalent chromium (Cr3+) / Shaeena G. De Leon, Michelle D. Llapitan, and Vincent Louise S. Rentoria .-- - Manila: Technological University of the Philippines, 2019. - 58pages: 29cm. +1 CD ROM (3/4in.)
Thesis (undergraduate)
College of Science.--
Includes bibliography.
The adsorption of hexavalent chromium (Cr6+) using synthesized PANI/cotton composite was
investigated in this study. Two different oxidizing agents (potassium persulfate and ferric nitrate)
and dopants (acetic acid and aspartic acid) were used for the polymerization of aniline
monomers. PANI/cotton composite was characterized by Scanning Electron Microscopy and
Fourier Transformed Infrared and thermogravimetric analysis. The results showed that the
PANI/cotton composite reduces and converts hexavalent chromium (Cr6+) to trivalent chromium
(Cr3+). The removal efficiency of PANI/cotton composite was examined using UV-Vis
spectroscopy at different contact time. PANI/cotton that utilizes potassium persulfate as an
oxidizing agent and acetic acid as dopant for polymerization of aniline efficiently demonstrated
great removal capacity towards hexavalent chromium (Cr6+) because of its recyclability.
PANI/cotton Fe3+ can be used for 2 cycles only while potassium persulfate can be used in 4-5
cycles and the reduction of hexavalent chromium was continuous.SEM analysis showed that
PANI/cotton-K2S2O8 appears to be rougher and denser.
Keywords: Polyaniline, cotton, adsorption, hexavalent chromium, potassium persulfate, ferric
nitrate, acetic acid, and aspartic acid.
Polyaniline
hexavalent chromium
BTH RB 37 / D45 2019
Polyaniline cellulose for the reduction of hexavalent chromium (Cr6+) to trivalent chromium (Cr3+) / Shaeena G. De Leon, Michelle D. Llapitan, and Vincent Louise S. Rentoria .-- - Manila: Technological University of the Philippines, 2019. - 58pages: 29cm. +1 CD ROM (3/4in.)
Thesis (undergraduate)
College of Science.--
Includes bibliography.
The adsorption of hexavalent chromium (Cr6+) using synthesized PANI/cotton composite was
investigated in this study. Two different oxidizing agents (potassium persulfate and ferric nitrate)
and dopants (acetic acid and aspartic acid) were used for the polymerization of aniline
monomers. PANI/cotton composite was characterized by Scanning Electron Microscopy and
Fourier Transformed Infrared and thermogravimetric analysis. The results showed that the
PANI/cotton composite reduces and converts hexavalent chromium (Cr6+) to trivalent chromium
(Cr3+). The removal efficiency of PANI/cotton composite was examined using UV-Vis
spectroscopy at different contact time. PANI/cotton that utilizes potassium persulfate as an
oxidizing agent and acetic acid as dopant for polymerization of aniline efficiently demonstrated
great removal capacity towards hexavalent chromium (Cr6+) because of its recyclability.
PANI/cotton Fe3+ can be used for 2 cycles only while potassium persulfate can be used in 4-5
cycles and the reduction of hexavalent chromium was continuous.SEM analysis showed that
PANI/cotton-K2S2O8 appears to be rougher and denser.
Keywords: Polyaniline, cotton, adsorption, hexavalent chromium, potassium persulfate, ferric
nitrate, acetic acid, and aspartic acid.
Polyaniline
hexavalent chromium
BTH RB 37 / D45 2019