12.5 Degradation of Dyes Using Functionalized Ionic
Liquids
Ionic liquids have found the recent applications in fields such as electrochemical,
photo-degradation of organic compounds, catalysis and/or reaction media, drug
delivery, biotransformation, and various areas of separations (Patel and Lee 2012).
In this section of the chapter, recent and selected studies have been presented in
Table 12.3 for the degradation of various dyes such as methyl orange, methylene
blue, rhodamine B, indigo blue, and Sudan III using the functionalized ionic liquids.
Applicable ionic liquids are also assisted by incorporating different nanoparticles
such as Ag and TiO 2 . It is clear from Table 12.3 that ionic liquids can be effectively
used for the effective removal of the dyes. The following section describes a case
study on the photodegradation of organic dyes, namely, methylene blue and congo
red, using a polymer-supported ionic liquid Fe-porphyrin complex.
12.6 Case Study: Photodegradation of Organic Dyes,
Methylene Blue, and Congo Red Using
a Polymer-Supported Ionic Liquid Fe-Porphyrin
Complex
In this case study, a polymer-supported ionic liquid Fe-porphyrin complex was
synthesized using the procedure described below. Ionic liquid complex was tested
for the photodegradation of the organic dyes, namely, methylene blue and congo red.
Results were analyzed using several characterization techniques.
12.6.1 Synthesis of a Polymer-Supported Ionic Liquid
Fe-Porphyrin Complex
Synthesis of Poly 1-(4-(sec-butyl) benzyl)-3-(3-formyl-4-hydroxybenzyl)-1H-benzo
[d] imidazol-3-ium chloride, 1-A
For the synthesis of a polymer-supported ionic liquid Fe-porphyrin complex, firstly,
equal moles of poly 1-(4-s-butyl) benzyl)-1H-benzo[d]imidazole, 0.02 mol/5.284 g
and 5-(chloromethyl)-2-hydroxybenz-aldehyde, 0.02 mol/3.411 g were taken and
mixed in the round bottle flask of 100 mL with acetonitrile of 25 mL. The complete
reaction mixture was agitated 24 h using a magnetic stirrer at ambient temperature.
After completion of reaction, a new compound was formed and washed using a
solvent, diethyl ether to acquire white powder form of 1D (Balinge et al. 2017,
2018). The yield and melting point of the resultant compound were determined as
68.99% and 180–198
C, respectively.
398
D. S. Patle et al.
Liquids
Ionic liquids have found the recent applications in fields such as electrochemical,
photo-degradation of organic compounds, catalysis and/or reaction media, drug
delivery, biotransformation, and various areas of separations (Patel and Lee 2012).
In this section of the chapter, recent and selected studies have been presented in
Table 12.3 for the degradation of various dyes such as methyl orange, methylene
blue, rhodamine B, indigo blue, and Sudan III using the functionalized ionic liquids.
Applicable ionic liquids are also assisted by incorporating different nanoparticles
such as Ag and TiO 2 . It is clear from Table 12.3 that ionic liquids can be effectively
used for the effective removal of the dyes. The following section describes a case
study on the photodegradation of organic dyes, namely, methylene blue and congo
red, using a polymer-supported ionic liquid Fe-porphyrin complex.
12.6 Case Study: Photodegradation of Organic Dyes,
Methylene Blue, and Congo Red Using
a Polymer-Supported Ionic Liquid Fe-Porphyrin
Complex
In this case study, a polymer-supported ionic liquid Fe-porphyrin complex was
synthesized using the procedure described below. Ionic liquid complex was tested
for the photodegradation of the organic dyes, namely, methylene blue and congo red.
Results were analyzed using several characterization techniques.
12.6.1 Synthesis of a Polymer-Supported Ionic Liquid
Fe-Porphyrin Complex
Synthesis of Poly 1-(4-(sec-butyl) benzyl)-3-(3-formyl-4-hydroxybenzyl)-1H-benzo
[d] imidazol-3-ium chloride, 1-A
For the synthesis of a polymer-supported ionic liquid Fe-porphyrin complex, firstly,
equal moles of poly 1-(4-s-butyl) benzyl)-1H-benzo[d]imidazole, 0.02 mol/5.284 g
and 5-(chloromethyl)-2-hydroxybenz-aldehyde, 0.02 mol/3.411 g were taken and
mixed in the round bottle flask of 100 mL with acetonitrile of 25 mL. The complete
reaction mixture was agitated 24 h using a magnetic stirrer at ambient temperature.
After completion of reaction, a new compound was formed and washed using a
solvent, diethyl ether to acquire white powder form of 1D (Balinge et al. 2017,
2018). The yield and melting point of the resultant compound were determined as
68.99% and 180–198
C, respectively.
398
D. S. Patle et al.