An effective nanocomposite of polyaniline and ZnO: preparation,characterizations, and its photocatalytic activity |
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| Authors: | Sadia Ameen M Shaheer Akhtar Young Soon Kim O-Bong Yang Hyung-Shik Shin |
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| Institution: | (1) Energy Materials & Surface Science Laboratory, Solar Energy Research Center, School of Chemical Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea;(2) New & Renewable Energy Material Development Center (NewREC), Chonbuk National University, Buan-gun, Jeonbuk, Republic of Korea;(3) School of Semiconductor and Chemical Engineering and Solar Energy Research Center, Chonbuk National University, Jeonju, 561-756, Republic of Korea; |
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| Abstract: | The polyaniline/zinc oxide (PANI/ZnO) nanocomposites were prepared by in situ polymerization of aniline monomer with ZnO nanomaterials
and applied as a photocatalyst for the degradation of methylene blue (MB) dye. The morphological observations elicited the
agglomerations of PANI sheets which occurred due to the interaction between PANI and ZnO nanomaterials in PANI/ZnO nanocomposites.
As compared to pristine PANI, the UV–vis spectra exhibited that the absorption peak of π–π* transitions considerably shifted to higher wavelength at 360 nm from 325 nm in the nanocomposites. The photocatalytic activity
results indicated the substantial degradation of MB dye by ~76% over the surface of PANI/ZnO nanocomposite catalyst under
light illumination. The PANI/ZnO nanocomposites showed three times higher photocatalytic activity to MB dye degradation compared
to pristine PANI might due to high photogenerated electron (ē)–hole (h+) pairs charge separation. |
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