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01717 am a22001453u 4500 |
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11363 |
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|a dc
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|a Uraiwan Sirimahachai,
|e author
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|a Husna Harome,
|e author
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|a Sumpun Wongnawa,
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|a Facile synthesis of AgCl/BiYO3 composite for efficient photodegradation of RO16 under UV and visible light irradiation
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|b Penerbit Universiti Kebangsaan Malaysia,
|c 2017-09.
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|z Get fulltext
|u http://journalarticle.ukm.my/11363/1/06%20Uraiwan.pdf
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|a AgCl/BiYO3 composite was successfully synthesized via the aqueous precipitation method followed by calcination. The varied amount of AgCl (10, 20 and 30%) was mixed into BiYO3 via sonochemical-assisted method. The structures and morphologies of the as-prepared AgCl/BiYO3 composite were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-vis diffused reflectance spectroscopy (UV-vis DRS). The optical absorption spectrum of AgCl/BiYO3 composite showed strong absorption in visible region. The photocatalytic activity of AgCl/BiYO3 composite was evaluated by the photodegradation of reactive orange16 (RO16), which was selected to represent the dye pollutants, under UV and visible light irradiation. The results indicated that 20% AgCl/BiYO3 photocatalyst was the most capable photocatalyst in this series in the degradation of RO16 under both UV and visible light illumination within 1 h. Moreover, the mechanism of photocatalytic degradation of AgCl/BiYO3 was elucidated using three types of free radical scavengers. The significant enhancement was attributed to the formation of AgCl/BiYO3 heterojunction resulting in the low electron-hole pair recombination rate.
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