Photocatalytic oxidation of organic dyes by nano-sized metal molybdate incorporated titanium dioxide (MxMoxTi1−xO6) (M=Ni, Cu, Zn) photocatalysts

Ghorai, Tanmay Kumar; Dhak, Debasis; Biswas, Soumya Kanti; Dalai, Sudipta; Pramanik, Panchanan

doi:10.1016/j.molcata.2007.03.075

Cited by 78 publications

(43 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, the application of heterogeneous photocatalysis on the removal of contaminants in air and wastewater has fetched some interest [11][12][13][14][15]. Due to the high photocatalytic activity and stability of titanium dioxide, it is generally used as a photocatalyst for the removal of organic pollutants from water or air [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…The doping of TiO 2 with transition metal ions like Ni(II) [21], Cu(II) [22], Nb(V) [23], Cr(III) [24,25], Fe(III) [26][27][28][29], and metal molybdates [13] were reported to improve the photocatalytic properties with enhanced absorption of visible/ultraviolet light. Binary metal oxides such as TiO 2 /WO 3 , TiO 2 /MoO 3 , TiO 2 /SiO 2 and TiO 2 /ZrO 2 have been widely studied for their unique chemical, physical and photocatalytic properties [30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photocatalytic performance of nano-photocatalyst from TiO2 and Fe2O3 by mechanochemical synthesis

Ghorai

Chakraborty

Pramanik

2011

Journal of Alloys and Compounds

104

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photocatalytic performance of nano-photocatalyst from TiO2 and Fe2O3 by mechanochemical synthesis

Ghorai

Chakraborty

Pramanik

2011

Journal of Alloys and Compounds

104

View full text Add to dashboard Cite

“…Many methods have been reported for the production of nanoparticles of TiO 2 , such as chemical decomposition in solution (CSD) [43], chemical vapor decomposition [72], sol-gel method [109,148], ultrasonic irradiation [109], thermal and hydrothermal ethanol [35,143], hydrothermal and solvothermal methods [7,82,137], and direct oxidation methods [149], among others. Various polar and nonpolar solvents have been used in these processes, which generally require high calcination temperatures (above 450°C) to form a regular crystalline structure (anatase).…”

Section: Preparation Of Titanium Nanoparticles (Anatase) By Sol-gelmentioning

confidence: 99%

Enzyme Immobilization by Amperometric Biosensors with TiO2 Nanoparticles Used to Detect Phenol Compounds

et al. 2015

View full text Add to dashboard Cite

Nanoparticles of titanium dioxide (TiO 2 ) have unique properties in creating an appropriate microenvironment for immobilizing biomolecules without loss of biological activity, and facilitating electron transference between the enzyme and surface of the electrode. TiO 2 properties have led to its intensive use in building electrochemical biosensors. Another aspect is, the chemical process of sol-gel which offers new and interesting advantages in the encapsulation of biomolecules sensitive to heat and environmental conditions (enzymes, proteins, antibodies, and cells from plants, animals and micro-organisms), mainly due to a synthesized process at low temperatures. The nanomaterials produced by sol-gel have many advantages, including chemical inertia, physical rigidity, insignificant swelling in an aqueous medium, and porosity. For this reason, electrochemical biosensors consisting of nanomaterials have been extensively investigated and used in important industrial sectors, such as, those of pharmaceuticals, health, food, agriculture, and environment. They provide real-time data, which allows the control and traceability of each of the processes involved. Biosensors are devices that consist of one element of molecular recognition (biomolecules) and one transduction element. The objective of this work is to conduct a review of electrochemical biosensors using nanoparticles obtained from the sol-gel process and their potential application to measure phenol compounds.

show abstract

“…The TiO 2 has gained much attention because of strong photocatalytic abilities to purify pollutants in air and water under irradiation (Konstantinou et al 2001;Buechler et al 1999). TiO 2 thin films can be prepared by various methods (Ghorai et al 2007;Zhang et al 2005 Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic removal of hazardous Ponceau S dye using Nano structured Ni-doped TiO2 thin film prepared by chemical method

Marathe

Shrivastava

2014

Appl Nanosci

View full text Add to dashboard Cite

Many attempts have been made by researchers for the removal of various dyes using nano structured Nidoped TiO 2 ; however, removal of 'hazardous Ponceau S dye' using nano structured Ni-doped TiO 2 has been not studied yet. In the present work, environmental application of Nano structured Ni doped TiO 2 has been studied. Nano structured Ni-doped TiO 2 thin films were deposited by the chemical method on a glass substrate. The prepared thin film was characterized by XRD, SEM, and EDX. The crystal size calculated from XRD is about 26.2 nm. The SEM analysis reveals nano spherical morphology of average particle size about 92 nm. The optical analysis was carried by using UVvisible spectroscopy. The band gap estimated from absorbance spectra for thin film was around 3.5 eV, making suitable Ni-doped TiO 2 for photocatalytic removal of hazardous Ponceau S dye. In photocatalytic application different parameters like dye concentration, contact time, pH, UV light and sunlight were optimized for the removal of Ponceau S dye, respectively. The change in chemical oxygen demand after photo catalytic treatment was also studied.

show abstract

Photocatalytic oxidation of organic dyes by nano-sized metal molybdate incorporated titanium dioxide (MxMoxTi1−xO6) (M=Ni, Cu, Zn) photocatalysts

Cited by 78 publications

References 27 publications

Photocatalytic performance of nano-photocatalyst from TiO2 and Fe2O3 by mechanochemical synthesis

Photocatalytic performance of nano-photocatalyst from TiO2 and Fe2O3 by mechanochemical synthesis

Enzyme Immobilization by Amperometric Biosensors with TiO2 Nanoparticles Used to Detect Phenol Compounds

Photocatalytic removal of hazardous Ponceau S dye using Nano structured Ni-doped TiO2 thin film prepared by chemical method

Contact Info

Product

Resources

About