Hydrothermal synthesis of molybdenum trioxide, characterization and photocatalytic activity. (April 2018)

• Record Type: Journal Article
• Authors: Shahab-ud-Din, ; Ahmad, M. Zubair; Qureshi, Khizar; Bhatti, Ijaz Ahmad; Zahid, Muhammad; Nisar, Jan; Iqbal, Munawar; Abbas, Mazhar
• Is Part Of: Materials research bulletin. Volume 100(2018)
• Page Start: 120
• Page End: 130
• Publication Date: 2018-04
• Subjects: Nanostructures -- Hydrothermal -- Advanced oxidation -- Dye degradation -- Toxicity; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2017.11.044
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Highlights: α -MoO3 micro-belts were synthesized hydrothermally. Micro-belts were found very rich in surface oxygen vacancies. CR-F3BS photocatalytic degradation was promising. The cytotoxicity and mutagenicity were reduced significantly of CR-F3BS. Abstract: ɑ -MoO3 micro-belts were synthesized via hydrothermal technique and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), atomic force microscopy (AFM), energy dispersive X-ray analysis (EDX) and particle size analyzer. Photo-catalytic activity was evaluated by degrading Coralene Red F3BS (CR-F3BS) dye and process variables i.e., pH, photocatalyst dose, concentration of CR-F3BS and UV exposure time were optimized using response surface methodology (RSM) under central composite design (CCD). Under optimized conditions, up to 95% degradation of CR-F3BS (10 mg/L) was achieved for 120 min UV irradiation time at pH 7 using 2.75 g/L catalyst dose. The obtained RSM model revealed a satisfactory correlation between experimental and predicted CR-F3BS degradation values. Ames and heamolytic tests revealed that the toxicity was reduced significantly as a result of photo-catalytic treatment. In view of promising efficiency, ɑ -MoO3 micro-belts could possibly be used for the degradation of dyes in textile effluents.