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 .--

By:

De Leon, Shaeena G [author ]

Contributor(s):

Material type: Text

TextPublication details: Manila: Technological University of the Philippines, 2019.Description: 58pages: 29cm. +1 CD ROM (3/4in.)Content type:

Media type:

Carrier type:

Subject(s):

LOC classification:

BTH RB 37 D45 2019

Dissertation note: College of Science.-- Bachelor of Science major in Laboratory Technology: Technological University of the Philippines, 2019 Summary: 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.

Tags from this library: No tags from this library for this title. Log in to add tags.

Average rating: 0.0 (0 votes)

Holdings
Item type	Current library	Shelving location	Call number	Copy number	Status	Notes	Date due	Barcode
Bachelor's Thesis COS	TUP Manila Library	Thesis Section-2nd floor	BTH RB 37 D45 2019 (Browse shelf(Opens below))	c.1.	Not for loan	For library use only		BTH0003299

Thesis (undergraduate)

College of Science.-- Bachelor of Science major in Laboratory Technology: Technological University of the Philippines, 2019

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.

There are no comments on this title.

to post a comment.

Click on an image to view it in the image viewer