| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
무기재료 |
| 제목 |
Simultaneous reduction of Cr (VI) and oxidation of citric acid using hierarchically structured Bi2S3/Bi2WO6 photocatalyst |
| 초록 |
Hierarchically structured microspheres of bismuth sulfide (Bi2S3)/bismuth tungstate Bi2WO6) have shown promising photocatalytic activity by reducing highly toxic and carcinogenic Cr (VI) in comparison to various heterostructured photocatalysts in different morphologies. One step synthesis of the composite Bi2S3/Bi2WO6 were carried out in a ternary solvent medium, ethyl acetate in water acted as soft template for microspheres. Composites were synthesized on basis of different Bi2S3 content and characterized using different analysis techniques. Photoexcitation mechanism of composite materials was elucidated using photoluminescence spectrometry. Bi2S3/Bi2WO6 heterocatalysts were used to remove toxic Cr(VI) ions via reduction to water insoluble Cr(III) utilizing visible-light irradiation. Similarly, role of citric acid as a hole scavenger in the reduction of Cr(VI) with minimizing the rate of electron-hole recombination during photocatalysis was also investigated. |
| 저자 |
Ali rauf1, 유필진2
|
| 소속 |
1Sungkyunkwan Univ., 2성균관대 |
| 키워드 |
Heterocatalyst; photocatalyst; hierarchical structure
|
| E-Mail |
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