Abstract
Multiwalled carbon nanotube (MWCNT/N), Pd co-doped TiO2 nanocomposites were prepared by calcining the hydrolysis products of the reaction of titanium isopropoxide, Ti(OC3H7)4 containing multiwalled carbon nanotubes with aqueous ammonia. The prepared samples were characterised by Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, diffuse reflectance UV–Vis spectrophotometry (DRUV–Vis), XRD, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). DRUV–Vis analysis confirmed the red shift in the absorption edge at lower MWCNT percentages. SEM and TEM images showed the complete coverage of the MWCNTs with clusters of anatase TiO2 at low MWCNT percentages. Higher MWCNT levels led to their aggregation and consequently poor coverage by N, Pd co-doped TiO2. The photocatalytic activities of the nanocomposites were monitored by photodegradation of Eosin Yellow under simulated solar and visible light irradiation (λ > 450 nm). Irradiation with simulated solar radiation gave higher dye-degradation rates compared to visible radiation. The optimum MWCNT weight percentage in the composites was found to be 0.5. High degradation-rate constants of 3.42 × 10−2 and 5.18 × 10−3 min−1 were realised for the 0.5% MWCNT/N, Pd co-doped TiO2 composite, using simulated solar light and visible light, respectively.
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References
Akhavan O, Azimirad R, Safa S, Larijani MM (2010) Visible light photo-induced antibacterial activity of CNT-doped TiO2 thin films with various CNT contents. J Mater Chem 20:7386–7392
An G, Ma W, Sun Z, Liu Z, Han B, Miao S, Miao Z, Ding K (2007) Preparation of titania/carbon nanotube composites using supercritical ethanol and their photocatalytic activity for phenol degradation under visible light irradiation. Carbon 45:1795–1801
Anpo M, Takeuchi M (2003) The design and development of highly reactive titanium oxide photocatalysts operating under visible light irradiation. J Catal 216:505–516
Baughman RH, Zakhidov AA, De Heer WA (2002) Carbon nanotubes—the route toward applications. Science 297:787–792
Fan W, Gao L, Sun J (2006) Anatase TiO2-coated multi-wall carbon nanotubes with the vapor phase method. J Am Ceram Soc 89:731–733
Gao B, Chen GZ, Puma GL (2009) Carbon nanotubes/titanium dioxide (CNTs/TiO2) nanocomposites prepared by conventional and novel surfactant wrapping sol–gel methods exhibiting enhanced photocatalytic activity. Appl Catal B 89:503–509
Hirano M, Nakahara C, Ota K, Tanaike O, Inagaki M (2003) Photoactivity and phase stability of ZrO2-doped anatase-type TiO2 directly formed as nanometer-sized particles by hydrolysis under hydrothermal conditions. J Solid State Chem 170:39–47
Jitianu A, Cacciaguerra T, Benoit R, Delpeux S, Beguin F, Bonnamy S (2004) Synthesis and characterization of carbon nanotubes–TiO2 nanocomposites. Carbon 42(5–6):1147–1151
Kafizas A, Kellici S, Jawwad A, Darr JA, Parkin IP (2009) Titanium dioxide and composite metal/metal oxide Titania thin films on glass: a comparative study of photocatalytic activity. J Photochem Photobiol A 204:183–190
Kang SZ, Cui Z, Jin Mu J (2007) Composite of carboxyl-modified multi-walled carbon nanotubes and TiO2 nanoparticles: preparation and photocatalytic activity. Fuller Nanotub Carbon Nanostruct 15:81–88
Kim S, Jinschek JR, Chen H, Sholl DS, Marand E (2007) Scalable fabrication of carbon nanotube/polymer nanocomposite membranes for high flux gas transport. Nano Lett 7(9):2806–2811
Li Q, Xie R, Shang JK, Mintz EA (2007) Effect of precursor ratio on synthesis and optical absorption of TiON photocatalytic nanoparticles. J Am Ceram Soc 90(4):1045–1050
Lin Z, Orlov A, Lambert RM, Payne MC (2005) New insights into the origin of visible light photocatalytic activity of nitrogen-doped and oxygen-deficient anatase TiO2. J Phys Chem B 109:20948–20952
Maicu M, Hidalgo MC, Colon G, Navio JA (2011) Comparative study of the photodeposition of Pt, Au and Pd on pre-sulphated TiO2 for the photocatalytic decomposition of phenol. J Photochem Photobiol A 217:275–283
Oh WC, Jung AR, Ko WB (2009) Characterization and relative photonic efficiencies of a new nanocarbon/TiO2 composite photocatalyst designed for organic dye decomposition and bactericidal activity. Mater Sci Eng C 29:1338–1347
Ou Y, Lin J, Fang S, Liao D (2006) MWNT–TiO2:Ni composite catalyst: a new class of catalyst for photocatalytic H2 evolution from water under visible light illumination. Chem Phys Lett 429:199–203
Rupa AV, Divakar D, Sivakumar T (2009) Titania and noble metals deposited titania catalysts in the photodegradation of tartrazine. Catal Lett 132:259–267
Serpone N, Lawless D, Khairutdinov R (1995) Size effects on the photophysical properties of colloidal anatase TiO2 particles: size quantization versus direct transitions in this indirect semiconductor. J Phys Chem 99:16646–16654
Tian L, Ye L, Deng K, Zan L (2011) TiO2/carbon nanotube hybrid nanostructures: solvothermal synthesis and their visible light photocatalytic activity. J Solid State Chem 184:1465–1471
Wang W, Serp P, Kalck P, Faria JL (2005) Visible light photodegradation of phenol on MWNT-TiO2 composite catalysts prepared by a modified sol–gel method. J Mol Catal A 235:194–199
Wang H, Wang HL, Jiang WF (2009) Solar photocatalytic degradation of 2,6-dinitro-p-cresol (DNPC) using multi–walled carbon nanotubes (MWCNTs)–TiO2 composite photocatalysts. Chemosphere 75:1011–1105
Woan K, Pyrgiotakis G, Sigmund W (2009) Photocatalytic carbon nanotube–TiO2 composites. Adv Mater 21:2233–2239
Wu Y, Zhang J, Xiao L, Chen F (2010) Properties of carbon and iron modified TiO2 photocatalyst synthesised at low temperature and photodegradation of acid orange 7 under visible light. Appl Surf Sci 256:4260–4268
Yadav SK, Madeshwaran SM, Cho JW (2011) Synthesis of a hybrid assembly composed of titanium dioxide nanoparticles and thin multi-walled carbon nanotubes using ‘‘click chemistry’’. J Colloid Interface Sci 358:471–476
Yan MC, Chen F, Zhang JL, Anpo M (2005) Preparation of controllable crystalline titania and study on the photocatalytic properties. J Phys Chem B 109:8673–8678
Yu Y, Yu JC, Chan CY, Che YK, Zhao JC, Ding L, Ge WK, Wong PK (2005) Enhancement of adsorption and photocatalytic activity of TiO2 by using carbon nanotubes for the treatment of azo dye. Appl Catal B 61:1–11
Yu J, Ma T, Liu S (2011) Enhanced photocatalytic activity of mesoporous TiO2 aggregates by embedding carbon nanotubes as electron-transfer channel. Phys Chem Chem Phys 13:3491–3501
Zhang K, Oh WC (2010) Kinetic study of the visible light-induced sonophotocatalytic degradation of MB solution in the presence of Fe/TiO2-MWCNT catalyst. Bull Korean Chem Soc 31(6):1589–1595
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Funding from the University of Johannesburg and the Centre of Excellence in Strong Materials is appreciated.
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Special Issue Editors: Mamadou Diallo, Neil Fromer, Myung S. Jhon
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Kuvarega, A.T., Krause, R.W.M., Mamba, B.B. (2012). Multiwalled carbon nanotubes decorated with nitrogen, palladium co-doped TiO2 (MWCNT/N, Pd co-doped TiO2) for visible light photocatalytic degradation of Eosin Yellow in water. In: Diallo, M.S., Fromer, N.A., Jhon, M.S. (eds) Nanotechnology for Sustainable Development. Springer, Cham. https://doi.org/10.1007/978-3-319-05041-6_6
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DOI: https://doi.org/10.1007/978-3-319-05041-6_6
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