Morphology Evolution of Sb₂S₃ under Hydrothermal Conditions: Flowerlike Structure to Nanorods

Abstract

Nanorods of Sb 2 S 3 have been synthesized by a surfactant assisted hydrothermal method. The formation of nanorods through flowerlike morphology with an intermediate straw tide like structure has been depicted by scanning electron microscopy (SEM) study. This type of observation is the first of its kind for this material, and it has been explained on the basis of a two step heterogeneous nucleation-growth mechanism followed by crystal splitting. Raman spectroscopy of the nanorods has been carried out to provide an idea about their purity. An increase in the band gap is observed for Sb 2 S 3 with nanorod-type morphology. Photoluminescence (PL) shows no sign of quantum confinement effect, though a large increase in intensity for nanorods has been observed compared to the flowerlike morphology.

Stibnite Nanoparticles as a New Stabilizer for Poly (Methyl Methacrylate) Exposed to Gamma Irradiation

“…Some elongated particles and particle aggregates were also present. Similar results about the shape of stibnite synthesized by sonochemical method also were data but the small particles were found 6 . It has been known that there are two regions of sonochemical activity.…”

“…In the mean time, there already exist a number of reports toward synthesis of nanorods of stibnite. So far, various synthetic methods such as hydrothermal [5][6][7] , and complexing agent assisted 8 have been employed to synthesize this material either in rod, ribbon or wire form. Sonochemical processing has been proven to be an useful technique for generating stibnite nanorods under ambient air from an ethanolic solution containing antimony trichloride and thioacetamide 8 .…”

Shape evolution of antimony oxychloride from sheaf-like to quasi-wafer structures

“…As previously reported for other sheaf-like crystals, including Bi 2 S 3 [16][17][18], -FeO(OH) [19], BaWO 4 [20,21], lanthanum orthovanadates [22], Sb 2 S 3 and Sb 2 Se 3 [23,24], CuO [25,26], CeO 2 [27] and Tb-doped CePO 4 [28], it has been widely accepted that the formation mechanism of sheaf-like morphologies is because of crystal splitting. Crystal splitting possibly occurs because of solution oversaturation conditions are used, or the presence of additives which may influence the crystal growth process leading to crystal splitting.…”

A template‐free route for controlled synthesis of dumbbell‐like Sb2S3 microcrystals

“…Qian et al found that a secondary nucleation could be observed on the top surface of the individual crystal [22]. In [17] and [18], people also found that Sb 2 S 3 crystals splitting occurred easily. With the help of surfactant, imperfect oriented attachment of nuclei appeared.…”