Development of inorganic composite material based TiO₂for environmental application

Abstract

Abstract. Syntheses of various materials, for green energy nanotechnology applications have special attention to develop emerging areas, such as environmental as well as energy materials. Various approaches for preparing nanostructured photocatalysts, such as titanium dioxide, nickel oxide, lead oxide and their composites, was introduced. The use of nanomaterials as photocatalysts water detoxification by visible light photocatalyst of an inorganic composite as well as dye-sensitized photoreduction was also discussed. The enhancement of selective photocatalyst system was gain by the use of photocatalyst composite materials and applied potential bias on the system. The photoelectrocatalytic degradation of rhodamine B (RB) and Remazol Yellow FG (RY) as water contaminant using the thin film of modified TiO 2 as the electrode was investigated via a series of potentials, and various pH. The result showed that the anodic potential bias influenced the degradation rate of water contaminant and exhibited better performance by the positive anodic bias was applied. The pH conditions influence the active dye structure whereas it will interact with inorganic semiconductor photocatalyst. Using dyesensitized TiO 2 system (DSTs), we have applied this system to build water decolorization as a novelty environmental remediation system.

TiO2Nanorods Preparation from Titanyl Sulphate Produced by Dissolution of Ilmenite

“…About 100 grams of roasted ilmenite was washed with hot water for 2 hours for three times. The dissolution of roasted-ilmenite performed with H 2 SO 4 at 3, 3.5, 4.5, 6, and 9M by refluxing process under 2 hours, according Wahyuningsih et al (2016) [16]. The ilmenite dissolution was produced TiOSO 4 solutions.…”

“…One-dimentional (1-D) TiO 2 has become the preferred semiconductors in a variety of studies because it possesses good photo-sensibility [3] and has a large band gap energy (> 3.00 eV) so it can absorb the energy of photons on most of the spectrum of sunlight in ultra violet and near visible. TiO 2 and TiO 2 -derived materials are importance for utilizing solar energy and environmental purification [4]. One-dimentional (1-D) nanostructured materials (nanotubes, nanorods, and nanowires) have received considerable attention due to their unique properties of novel applications [5][6][7][8].…”