The preparation of nano-gold catalyst supported on iron doped titanium oxide

Tóm tắt

We have prepared iron doped TiO2 samples by the impregnation of TiO2 (Degussa—P25) with Fe(III) nitrate as an iron precursor. Obtained materials were then characterized by structural x-ray diffraction (XRD) and optical (Uv-vis, Raman) techniques. Later, we deposited very small gold nanoparticles (AuNPs; <5 nm) onto as-prepared supports by a colloidal deposition method, in which lysine was used as a capping agent and a short sonication time was applied to facilitate the dispersion and deposition of AuNPs. The presence of Fe+3 in the TiO2 structure was confirmed by an increase in the number of oxygen defect sites that react with O2 to form reactive oxygen species. Transmission electron microscopy (TEM) was used to determine the size of the gold particles before and after deposition. The AuNPs deposited on the FeTiO2 exhibited good thermal stability against sintering, even at 500 °C for 4 h.

Tài liệu tham khảo

[1] Haruta M, Kobayashi T, Sano H and Yamada N 1987 Chem. Lett. 2 405
[2] Haruta M, Tsubota S, Kobayashi T, Genet M J and Delmon B 1993 J. Catal. 144 175
[3] Vaden M, Lai X and Goodman D W 1998 Science 281 1647
[4] Baiker A and Grunwaldt J D 1999 J. Phys. Chem. 103 1002
[5] Dang T M D, Le D D, Chau V T and Dang M C 2010 Adv. Nat. Sci.: Nanosci. Nanotechnol. 1 015004
[6] Le D D, Dang T M D, Chau V T and Dang M C 2010 Adv. Nat. Sci.: Nanosci. Nanotechnol. 1 015007
[7] Luu C L, Nguyen Q T and Ho S T 2010 Adv. Nat. Sci.: Nanosci. Nanotechnol. 1 015008
[8] Carrettin S, Hao Y, Guerrero V A, Gates B C, Trasobares S, Calvino J J and Corma A 2007 Chem. Eur. J. 13 7771
[9] Schwartz V, Mullins D R, Yan W, Chen B, Dai S and Overburry S H 2004 J. Phys. Chem. B 108 15782
[10] Hirano M, Joji T and Inagaki M 2004 J. Am. Ceram. Sci. 4 35
[11] Adan C, Bahamonde A, Garcia F M and Arias A M 2007 Appl. Catal. B: Environ. 72 11
[12] Navio J A, Macias M, Gonzalez-Catalan M and Justo A 1992 J. Mater. Sci. 27 3026
[13] Zhong Z, Lin J, Teh S P, Teo J and Dautzenberg F M 2007 Adv. Funct. Mater. 17 1402
[14] Comotti M, Li W C, Spliethoff B and Schuth F 2006 J. Am. Chem. Soc 128 917
[15] Wei-Hua W and Geng-Yu C 2006 Chin. J. Chemi. 24 817 [16] Hammer N, Kvande I, Xu X, Gunnarsson V, Totdal B, Chen D and Rønning M 2007 Catal. Today 123 245
[17] Zhong Z, Teo J, Lin M and Ho J 2008 Top. Catal. 49 216
[18] Hung W C, Fu S H, Tseng J J, Chu H and Ko T H 2007 Chemosphere 66 2142

Các bài trích dẫn đến

1. Samira Bagheri, Nurhidayatullaili Muhd Julkapli, Sharifah Bee Abd Hamid. Titanium dioxide as a catalyst support in heterogeneous catalysis in The Scientific World Journal (Vol. 2014, 2014)
2. Thi My Dung Dang, Thi Thu Tuyet Le, Eric Fribourg-Blanc, Mau Chien Dang. The influence of solvents and surfactants on the preparation of copper nanoparticles by a chemical reduction method in Advances in Natural Sciences: Nanoscience and Nanotechnology (Vol. 2, No. 2, 2011)
3. Thillai Sivakumar Natarajan, Kalithasan Natarajan, Hari C Bajaj, Rajesh J Tayade. Enhanced photocatalytic activity of bismuth-doped TiO 2 nanotubes under direct sunlight irradiation for degradation of Rhodamine B dye in Journal of nanoparticle research (Vol. 15, No. 5, 2013)
4. Piotr Bujak, Piotr Bartczak, Jaroslaw Polanski. Highly efficient room-temperature oxidation of cyclohexene and D-glucose over nanogold Au/SiO2 in water in Journal of catalysis (Vol. 295, 2012)
5. Van Nghia Nguyen, Ngoc Khoa Truong Nguyen, Phi Hung Nguyen. Hydrothermal synthesis of Fe-doped TiO2 nanostructure photocatalyst in Advances in Natural Sciences: Nanoscience and Nanotechnology (Vol. 2, No. 3, 2011)
6. M Muniz-Miranda, C Gellini, A Simonelli, M Tiberi, Francesco Giammanco, E Giorgetti. Characterization of copper nanoparticles obtained by laser ablation in liquids in Applied Physics A (Vol. 110, No. 4, 2013)
7. Rajesh J Tayade, HC Bajaj, Raksh V Jasra. Photocatalytic removal of organic contaminants from water exploiting tuned bandgap photocatalysts in Desalination (Vol. 275, 2011)
8. Eda Sinirtas, Meltem Isleyen, Gulin Selda Pozan Soylu. Photocatalytic degradation of 2, 4-dichlorophenol with V2O5-TiO2 catalysts: Effect of catalyst support and surfactant additives in Chinese Journal of Catalysis (Vol. 37, No. 4, 2016)
9. Thi Phuong Ly Giang, Thi Nhu Mai Tran, Xuan Tuan Le. Preparation and characterization of titanium dioxide nanotube array supported hydrated ruthenium oxide catalysts in Advances in Natural Sciences: Nanoscience and Nanotechnology (Vol. 3, No. 1, 2012)
10. Pardon Nyamukamba, Lilian Tichagwa, Omobola Okoh, Leslie Petrik. Visible active gold/carbon co-doped titanium dioxide photocatalytic nanoparticles for the removal of dyes in water in Materials Science in Semiconductor Processing (Vol. 76, 2018)
11. Pardon Nyamukamba. Faculty of Science and Agriculture (2016)
12. Asif Mahmood, Shahid Mahmood Ramay, Yousef S Al-Zaghayer, Shahid Atiq, Shahid Hussain Ansari. Thermal/plasma treatment effect on photocatalytic degradation of aqueous solution of methylene blue using Au-doped Fe/TiO2 photocatalyst in Desalination and Water Treatment (Vol. 57, No. 11, 2016)
13. Eda Sinirtas, Meltem Isleyen, Gulin Selda Pozan Soylu. V 2 O 5-TiO 2 催化剂光催化降解 2, 4-二氯苯酚: 催化剂载体和表面活性剂的影响 in 催化学报 (Vol. 37, No. 4, 2016)