SrTiO3 Nanocube-Doped Polyaniline Nanocomposites with Enhanced Photocatalytic Degradation of Methylene Blue under Visible Light

被引：144

作者：

Shahabuddin, Syed ^{[1
]}

Sarih, Norazilawati Muhamad ^{[1
]}

Mohamad, Sharifah ^{[1
]}

Ching, Juan Joon ^{[2
]}

机构：

[1] Univ Malaya, Dept Chem, Polymer Res Lab, Fac Sci, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, Nanotechnol & Catalysis Res Ctr, Kuala Lumpur 50603, Malaysia

来源：

POLYMERS | 2016年 / 8卷 / 02期

关键词：

polyaniline; photocatalyst; nanocomposites; methylene blue; SrTiO3; nanocubes; CONDUCTING POLYMERS; BARIUM-TITANATE; HYDROTHERMAL SYNTHESIS; HYBRID COMPOSITES; EMITTING-DIODES; UV-LIGHT; KINETICS; THERMODYNAMICS; NANOSTRUCTURES; SEMICONDUCTORS;

D O I：

10.3390/polym8020027

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The present study highlights the facile synthesis of polyaniline (PANI)-based nanocomposites doped with SrTiO3 nanocubes synthesized via the in situ oxidative polymerization technique using ammonium persulfate (APS) as an oxidant in acidic medium for the photocatalytic degradation of methylene blue dye. Field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), UV-Vis spectroscopy, Brunauer-Emmett-Teller analysis (BET) and Fourier transform infrared spectroscopy (FTIR) measurements were used to characterize the prepared nanocomposite photocatalysts. The photocatalytic efficiencies of the photocatalysts were examined by degrading methylene blue (MB) under visible light irradiation. The results showed that the degradation efficiency of the composite photocatalysts that were doped with SrTiO3 nanocubes was higher than that of the undoped polyaniline. In this study, the effects of the weight ratio of polyaniline to SrTiO3 on the photocatalytic activities were investigated. The results revealed that the nanocomposite P-Sr500 was found to be an optimum photocatalyst, with a 97% degradation efficiency after 90 min of irradiation under solar light.

引用

页数：16

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