Immobilization of Nano-sized TiO2 on Glass Plate for the Removal of Methyl Orange and Methylene Blue

Abstract

Titanium dioxide (TiO 2 ) is the most researched photocatalyst due to its potential for dye removals in wastewater treatment. However, the TiO 2 powder suffers from agglomeration which hindered its process of industrialization. Thus, this study was carried out to immobilize nano-sized TiO 2 on glass plate via doctor blade technique and the crystal structure and surface morphology of the samples were accomplished using XRD and FESEM. The effects of operational parameters such as effect of light and pH in the removal of methyl orange (MO) and methylene blue (MB) using the as-prepared TiO 2 films were investigated. MO achieved a removal of 95 %, while only 47 % removal efficiency for MB after 120 min under UV-light illumination. On the other hand, percentage removal for MO and MB are recorded as 65 and 28 % respectively under LED light irradiation. The photocatalytic removal of MO and MB was found to be mainly due to the adsorptionphotocatalysis process, while the photolysis process is almost negligible. The kinetic study indicates that the photodegradation rate of MO and MB is fitted to the pseudo-first order rate model.

Wastewater Purification from Permanganate Ions by Sorption on the Ocimum basilicum Leaves Powder Modified by Zinc Chloride

“…In spite of the impressive effectiveness of activated carbon, the cost of preparing is very high. Other materials like metallic oxides nanoparticles (NPS) have been used as sorbents for purification wastewater from different dyes [17][18][19][20][21][22][23]. On the other hand, many researchers have used cheap and available materials in their areas as sorbents to get rid of water-pollution dyes.…”

Potassium Permanganate Dye Removal from Synthetic Wastewater Using A Novel, Low-Cost Adsorbent, Modified from The Powder of Foeniculum Vulgare Seeds

“…To remove potassium permanganate molecules from polluted aqueous solutions by adsorption a lot of activated carbon adsorbents were prepared using shells of coconut [12], corn cob, and animal bone were also applied [13], sulfuric acid modification of activated carbon, and activated charcoal have been used too [1,14]. More recently, Nanoparticles of metallic oxides have been used to remediate effluent from various dyes [15][16][17][18][19][20][21], Copper sulfide nanoparticles were used as dynamic adsorbents to treat the synthetic wastewater from potassium permanganate ions [22].…”

Enhancement of the adsorptive performance of TiO2 nanoparticles towards methylene blue by adding suspended nanoparticles of Pt: kinetics, isotherm, and thermodynamic studies

“…5 Sr 0 . 5 FeO 3 [27], TiO 2 [28], NiO and CuO [29], Fe, Co and Ni oxides [30], NiO/graphene oxide nanocomposite [31] and graphene oxide [32] has been investigated.…”