Novelties of combustion synthesized titania ultrafiltration membrane in efficient removal of methylene blue dye from aqueous effluent

• Published in: Chemosphere (Oxford) Vol. 117; pp. 760 - 765
• Main Authors: Doke, Suresh M., Yadav, Ganapati D.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2014; Elsevier
• Subjects: Applied sciences; Coloring Agents - chemistry; Combustion; Combustion synthesis; Dyes; Exact sciences and technology; Flocculation; Industrial wastewaters; Membranes; Metal Nanoparticles - chemistry; Methylene blue; Methylene Blue - chemistry; Pollution; Proteins; Rejection; Titania membrane; Titanium - chemistry; Titanium dioxide; Ultrafiltration; Ultrafiltration - methods; Waste Disposal, Fluid - instrumentation; Waste Disposal, Fluid - methods; Waste Water - analysis; Wastewaters; Water Pollutants, Chemical - chemistry; Water treatment and pollution; Combustion synthesis; Ultrafiltration; Titania membrane; Flocculation; Methylene blue; Water treatment; Organic dye; Basic dye; Titanium Oxides; Thiazine dye; Membrane separation; Industrial waste water; Preparation; Membrane filtration; Membrane; Physicochemical purification; Waste water purification; Organic compounds
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2014.10.029

[Display omitted] •A simple preparation method using combustion synthesis for titania ultrafiltration membrane is developed.•Membrane was characterized for its permeability and rejection.•Membranes were successfully used for methylene blue removal.•Effect of different parameters on methylene blue removal was studied.•Enhanced methylene blue removal was achieved at surfactant concentration below CMC. In this study, titania nanoparticles were synthesized by combustion and used to make ultrafiltration membrane. Characteristics of titania membranes such as textural evaluation, surface morphology, pure water permeability and protein rejection were investigated. Titania membrane sintered at 450°C showed pure water permeability 11×10−2Lh−1m−2kPa−1 and 76% protein rejection. The membrane presented good water flux and retention properties with regards to protein and methylene blue dye. Ultrafiltration process was operated at lower pressure (100kPa) and showed 99% removal of methylene blue using adsorptive micellar flocculation at sodium dodecyl sulfate concentration below its critical micellar concentration. Ferric chloride was used as the coagulant. The method of making titania membrane and its use are new. These studies can be extended to other dyes and pollutants.