Zinc titanium glycolate acetate hydrate and its transformation to zinc titanate microrods: synthesis, characterization and photocatalytic properties

Abstract

Heterobimetallic complex microrods of zinc titanium glycolate acetate hydrate tentatively formulated as Zn2Ti3(OCH2CH2O)4(OCH2CH2OH)5(CH3COO)3·2HOCH2CH2OH·H2O were synthesize by homogeneous precipitation.

Synthesis Temperature Dependent Morphological Evolution in Zinc Titanate Heteronanostructures and Their Application in Environmental Remediation

“…The present study reports synthesis temperature dependent (RT to 200 °C) morphological evolution in Zn‐Ti glycolates which on calcination produce zinc titanate heteronanostructures with different morphologies. Synthesis of zinc titanates (hexagonal ZnTiO 3 , cubic Zn 2 TiO 4 and cubic Zn 2 Ti 3 O 8 ) with rod‐like morphology using an ethylene glycol mediated route has been reported previously but the present study reports a thorough study on the effect of synthesis temperature on the morphology of Zn‐Ti glycolates and to the best of authors’ knowledge, the synthesis of spherical Zn‐Ti glycolate and the corresponding zinc titanate (Zn 2 TiO 4 ) with retention of morphology is reported for the first time. The zinc titanate samples were explored as catalysts for photodegradation of rhodamine B and crystal violet, common toxic dyes, in aqueous solutions in the presence of sunlight.…”

“…Figure shows XRD patterns for the Zn‐Ti glycolates synthesized at different temperatures (RT to 200 °C) before calcination. The XRD peaks at 2θ = 13.72, 18.84, 23.30, 25.55, 27.44, 29.04, 30.40, 33.42, 37.76, 41.31, 42.70, 45.23, 45.94, 53.62 and 61.95° are attributed to (‐101), (020), (‐120), (111), (‐202), (‐212), (121), (‐222), (112), (122), (‐313), (141), (‐323), (‐243) and (‐305) reflections of Zn‐Ti glycolates, respectively . Zn‐Ti glycolates belong to primitive monoclinic system and the lattice parameters are close to that of a hexagonal unit cell .…”

“…Zinc titanates have been synthesized using ball milling, combustion method, polymeric precursor method, Rf magnetron sputtering, sol‐gel process,, molten salt method, atomic layer deposition, ethylene glycol mediated route, etc. There are a few reports on the synthesis of morphologically interesting zinc titanates ,, For example, Chi et al have reported the synthesis of mesoporous ZnTiO 3 rods by polyvinylpyrrolidone assisted sol‐gel method at 40‐75 °C .…”

“…Ethylene glycol (EG) mediated route is useful for the synthesis of metal oxides with unique morphologies and EG acts as a solvent as well as complexing agent ,. There are many reports in the literature on the synthesis of metal oxides with various morphologies such as nanorods, nanodiscs, nanowires and spheres,,, via the ethylene glycol mediated route. For example, Pan et al have reported the synthesis of ZnTiO 3 microrods at room temperature .…”

“…There are many reports in the literature on the synthesis of metal oxides with various morphologies such as nanorods, nanodiscs, nanowires and spheres,,, via the ethylene glycol mediated route. For example, Pan et al have reported the synthesis of ZnTiO 3 microrods at room temperature . Niu et al have reported the synthesis of lanthanum oxide trapezohedrons at 150 °C .…”