Preparation and Photocatalytic Properties of Nano Ni/TiO₂ Composite in Alginate

Abstract:

New nano nickel-doped titanium dioxide composites had been produced by a conducting sol-gel method. The alginate gel was used as a template to prevent the conglomeration of the inorganic materials. In this experiment, nickel nitrate, tetrabutyl titanate and sodium alginate were used as main materials to prepare different amount nickel-doped TiO₂ particles. The amount of Ni was studied from 0 to 9 mol.-% (where mol.-% refers to the Ni/TiO₂ molar ratio), and the Ni/TiO₂ composites were characterized by XRD, FT-IR, TG-DTA, and we carried out doping amount, catalyst amount and illumination time influence on photocatalytic performance of nano Ni/TiO₂ composite in aqueous methyl orange. The activity of TiO₂ gradually increased with the increasing of doping amount, and there was highest catalytic efficiency when Ni = 9 % mol.

• Periodical: Key Engineering Materials (Volumes 531-532)
• Pages: 539-542
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.531-532.539
• Online since: December 2012
• Authors: Hai Feng Chen, Ting Yan
• Keywords: Alginate, Nickel, Photocatalytic, TiO₂

References

[1] Lingling Zhan, Haifeng Chen and Jianqiang Ye: Hydrothermal Synthesis of Phthalocyanine Sensitization TiO2 Nanowires. Hydrothermal Synthesis of Phthalocyanine Sensitization TiO2 Nanowires [J]. Advanced Materials Research. Vol. 531 (2012), pp.387-390

DOI: 10.4028/www.scientific.net/amr.531.387

[2] Ting Yan and Haifeng Chen: Preparation and Photocatalytic Properties of Loading Nano-TiO2 Modified PHBV Film by Solution Casting [J]. Advanced Materials Research. Vol. 531 (2012), pp.116-119

DOI: 10.4028/www.scientific.net/amr.531.116

[3] Zhiyu Wang, Weiping Mao, Haifeng Chen, Fuan Zhang, Xianping Fan and Guodong Qian: Copper(II) phthalocyanine tetrasulfonate sensitized nanocrystalline titania photocatalyst: Synthesis in situ and photocatalysis under visible light [J]. Catalysis Communications, Vol. 7(2006), P. 518-522

DOI: 10.1016/j.catcom.2006.01.010

[4] Zhiyu Wang, Haifeng Chen, Peisong Tang, Weiping Mao, Fuan Zhang, Guodong Qian and Xianping Fan: Hydrothermal in situ preparation of the copper phthalocyanine tetrasulfonate modified titanium dioxide photocatalyst [J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 289(2006), P. 207-211

DOI: 10.1016/j.colsurfa.2006.04.049

[5] Wonyong Choi, Andreas Termin, Michael R. Hoffmann: The Role of Metal Ion Dopants in Quantum-Sized TiO2: Correlation between Photoreactivity and Charge Carrier Recombination Dynamics [J]. J. Phys. Chem., Vol. 98 (1994), p.13669–13679

DOI: 10.1021/j100102a038

[6] Chen Haifeng, Tang Peisong, Cao Feng, Pan Guoxiang and Zeng Haiyan: Preparation and Photocatalytic Properties of the Titanium Dioxide-Alginate Composite Gel Beads [J]. Rare Metal Materials And Engineering. Vol. 39(2010), pp.306-309

[7] Peng Chen and Xiaogang Zhang: Fabrication of Pt/TiO2 Nanocomposites in Alginate and Their Applications to the Degradation of Phenol and Methylene Blue in Aqueous Solutions [J]. Clean. Vol. 36 (2008), pp.507-511

DOI: 10.1002/clen.200800089