Effect of V Dopant on Physicochemical Properties of Vanadium-Doped Anatase Synthesized via Simple Reflux Technique
Journal Title: Journal of Mathematical and Fundamental Sciences - Year 2016, Vol 48, Issue 1
Abstract
Mesoporous pure TiO2 (M-TiO2) and mesoporous-vanadium-doped TiO2 (M-V-doped TiO2) were successfully synthesized via a facile and simple reflux technique. The purpose of this research was to study the effect of vanadium dopant on the physicochemical properties of all materials obtained. Characterization of the prepared materials was carried out using X-ray diffraction (XRD), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS) and N2-adsorptiondesorption analysis. The presence of Ti and O elements in M-TiO2 and of Ti, V and O elements in M-V doped TiO2 could be detected by SEM-EDS, while the patterns of X-ray diffraction of all the prepared samples had a well-crystalline surface of anatase type. All mesoporous vanadium-doped TiO2 (M-V-doped TiO2) materials performed in a highly transparent mode in the visible region at 554 nm (Eg = 2.24 eV) and 588 nm (Eg = 2.12 eV) for 3.3 and 4.9 wt% V doped TiO2, respectively. The Rietveld refinement method was applied to extract the structural parameters of the M-TiO2 and M-V-doped TiO2 using the Fullprof program in the WinPlotr package. The prepared materials were refined in the crystal system and space group of anatase (tetragonal, I41/amd (141)). The vanadium ion was successfully doped into TiO2. The isotherm type of M-TiO2 and 2.3 wt% V doped TiO2 were of type IV, with a profile of type H2 hysteresis loops, while the 3.3 and 4.9 wt% vanadium-doped TiO2 reflected isotherm type III. The Brunauer-Emmett-Teller (BET) results showed a significant reduction in surface area due to increased concentrations of vanadium. The highest values of BET-specific surface area, pore volume and average pore size of M-TiO2 were 46 m2 /g, 18.45 nm and 0.2572 cm3 /g respectively.
Authors and Affiliations
Hari Sutrisno, Ariswan Ariswan, Dyah Purwaningsih
Keywords
Related Articles
- EP ID EP203632
- DOI 10.5614/j.math.fund.sci.2016.48.1.8
- Views 124
- Downloads 0
Study on Transport Properties of Chitosan Membrane in Different Types of Electrolytes
In this study, the electrical properties of chitosan membrane in different types of electrolytes were investigated by analyzing the current-voltage (I‑V) curve. The membrane used was chitosan membrane 2%. The different e...
Optimal Vaccination and Treatment Schedules in a Deterministic Avian influenza Model
In this study, a transmission model of the Avian influenza disease was developed and analyzed in view of optimization of vaccination and medical treatment. The model is a host-vector model. We focussed on control of Avia...
Oligocene Cyclic Sedimentation Deduced from Taphonomic Analysis of Molluscs in Lacustrine Deposits of the Pematang Group, Pesada Well, Central Sumatra Basin
The Oligocene cycle of Pesada Well, Central Sumatra Basin, Indonesia is composed of a deepening-upward series of depositional cycles in a lacustrine environment affected by oscillations of the water level. Taphonomic ana...
On Commutative Characterization of Graph Operation with Respect to Metric Dimension
Let G be a connected graph with vertex set V(G) and W={w_1,w_2,…,w_m}⊆V(G). A representation of a vertex v∈V(G) with respect to W is an ordered m-tuple r(v|W)=(d(v,w_1 ),d(v,w_2 ),...,d(v,w_m )) where d(v,w) is the dista...
Local Fractional Operator for a One-Dimensional Coupled Burger Equation of Non-Integer Time Order Parameter
In this study, approximate solutions of a system of time-fractional coupled Burger equations were obtained by means of a local fractional operator (LFO) in the sense of the Caputo derivative. The LFO technique was built...