Photocatalytic decomposition of perfluorooctanoic acid in pure water and wastewater by needle-like nanostructured gallium oxide

doi:10.1016/S1872-2067(12)60612-3

Abstract

Abstract: Nanostructured β-Ga₂O₃ with a needle-like structure was synthesized by a polyvinyl alcohol (PVA)- assisted hydrothermal method and subsequent heat treatment. It has a high specific surface area (25.95 m²/g) and large number of nanopores (4-25 nm), and it exhibited good photocatalytic activity for perfluorooctanoic acid (PFOA) decomposition in pure water unde UV irradiation (λ=254 nm). PFOA had a half-life of 18.2 min, and the first order rate constant (2.28 h^-1) for PFOA decomposition with the needle-like β-Ga₂O₃ was 7.5 and 16.8 times higher, respectively, than with commercial Ga₂O₃ and TiO₂ (P25). In addition, in combination with vacuum UV (VUV) irradiation (λ=185 nm), the needle-like β-Ga₂O₃ showed high activity for the removal of trace PFOA in both pure water and wastewater, with first order rate constants of 4.03 and 3.51 h ^-1, respectively. The adverse effect that coexisting natural organic matters in wastewater have on the decomposition of PFOA was mostly eliminated with VUV irradiation, and the energy consumption in this method was much less than the values reported for other methods in the literature.

Key words: Nanomaterial, Gallium oxide, Perfluorooctanoic acid, Photocatalysis, Vacuum ultraviolet

Tian Shao, Pengyi Zhang, Zhenmin Li, Ling Jin. Photocatalytic decomposition of perfluorooctanoic acid in pure water and wastewater by needle-like nanostructured gallium oxide[J]. Chinese Journal of Catalysis, 2013, 34(8): 1551-1559.

×
share this article

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(12)60612-3

https://www.cjcatal.com/EN/Y2013/V34/I8/1551

References

[1] Benskin J P, Yeung L W Y, Yamashita N, Taniyasu S, Lam P K S, Martin J W. Environ Sci Technol, 2010, 44: 9049

[2] Zhang T, Wu Q, Sun H W, Zhang X Z, Yun S H, Kannan K. Environ Sci Technol, 2010, 44: 4341

[3] Shin H M, Vieira V M, Ryan P B, Detwiler R, Sanders B, Steenland K, Bartell S M. Environ Sci Technol, 2011, 45: 1435

[4] Takagi S, Adachi F, Miyano K, Koizumi Y, Tanaka H, Mimura M, Watanabe I, Tanabe S, Kannan K. Chemosphere, 2008, 72: 1409

[5] Wania F. Environ Sci Technol, 2007, 41: 4529

[6] Zhao G P, Wang J, Wang X F, Chen S P, Zhao Y, Gu F, Xu A, Wu L J. Environ Sci Technol, 2011, 45: 1638

[7] Yang J H. Chemosphere, 2010, 81: 548

[8] Nolan L A, Nolan J M, Shofer F S, Rodway N V, Emmett E A. Reprod Toxicol, 2009, 27: 231

[9] Prevedouros K, Cousins I T, Buck R C, Korzeniowski S H. Environ Sci Technol, 2006, 40: 32

[10] Schultz M M, Higgins C P, Huset C A, Luthy R G, Barofsky D F, Field J A. Environ Sci Technol, 2006, 40: 7350

[11] Sinclair E, Kannan K. Environ Sci Technol, 2006, 40: 1408

[12] Vecitis C D, Park H, Cheng J, Mader B T, Hoffmann M R. Front Environ Sci Engin China, 2009, 3: 129

[13] Krusic P J, Marchione A A, Roe D C. J Fluorine Chem, 2005, 126: 1510

[14] Cheng J, Vecitis C D, Park H, Mader B T, Hoffmann M R. Environ Sci Technol, 2010, 44: 445

[15] Moriwaki H, Takagi Y, Tanaka M, Tsuruho K, Okitsu K, Maeda Y. Environ Sci Technol, 2005, 39: 3388

[16] Hori H, Hayakawa E, Einaga H, Kutsuna S, Koike K, Ibusuki T, Kiatagawa H, Arakawa R. Environ Sci Technol, 2004, 38: 6118

[17] Wang Y, Zhang P Y, Pan G, Chen H. J Hazard Mater, 2008, 160: 181

[18] Cao M H, Wang B B, Yu H S, Wang L L, Yuan S H, Chen J. J Hazard Mater, 2010, 179: 1143

[19] Qu Y, Zhang C J, Li F, Chen J, Zhou Q. Water Res, 2010, 44: 2939

[20] Panchangam S C, Lin A, Shaik K L, Lin C F. Chemosphere, 2009, 77: 242

[21] Zhao B X, Zhang P Y. Catal Commun, 2009, 10: 1184

[22] Li Z M, Zhang P Y, Shao T, Li X Y. Appl Catal B, 2012, 125: 350

[23] Li X Y, Zhang P Y, Jin L, Shao T, Li Z M, Cao J J. Environ Sci Technol, 2012, 46: 5528.

[24] Dillert R, Bahnemann D, Hidaka H. Chemosphere, 2007, 67: 785

[25] Imoberdorf G, Mohseni M. J Hazard Mater, 2011, 186: 240

[26] Giri R R, Ozaki H, Okada T, Takikita S, Taniguchi S, Takanami R. Water Sci Technol, 2011, 64: 1980

[27] Cheng J, Vecitis C D, Park H, Mader B T, Hoffmann M R. Environ Sci Technol, 2008, 42: 8057