In2O3 nanocapsules for rapid photodegradation of crystal violet dye under sunlight

Krishna K Pawar; Latika S Chaudhary; Sawanta S Mali; Tejasvinee S Bhat; Arif D Sheikh; Chang K Hong; Pramod S Patil

doi:10.1016/j.jcis.2019.10.101

In₂O₃ nanocapsules for rapid photodegradation of crystal violet dye under sunlight

J Colloid Interface Sci. 2020 Mar 1:561:287-297. doi: 10.1016/j.jcis.2019.10.101. Epub 2019 Nov 6.

Authors

Krishna K Pawar¹, Latika S Chaudhary², Sawanta S Mali³, Tejasvinee S Bhat¹, Arif D Sheikh⁴, Chang K Hong⁵, Pramod S Patil⁶

Affiliations

¹ Thin Film Material Laboratory, Department of Physics, Shivaji University, Kolhapur 416-004, India; School of Nanoscience and Technology, Shivaji University, Kolhapur 416-004, India.
² School of Nanoscience and Technology, Shivaji University, Kolhapur 416-004, India.
³ Polymer Energy Materials Laboratory, Chonnam National University, Gwangju, South Korea.
⁴ School of Nanoscience and Technology, Shivaji University, Kolhapur 416-004, India. Electronic address: arifdsheikh@gmail.com.
⁵ Polymer Energy Materials Laboratory, Chonnam National University, Gwangju, South Korea. Electronic address: hongck@chonnam.ac.kr.
⁶ Thin Film Material Laboratory, Department of Physics, Shivaji University, Kolhapur 416-004, India; School of Nanoscience and Technology, Shivaji University, Kolhapur 416-004, India. Electronic address: psp_phy@unishivaji.ac.in.

PMID: 31761468
DOI: 10.1016/j.jcis.2019.10.101

Abstract

We report, a shape controlled novel synthesis of Indium oxide (In₂O₃) nanocapsule using biogenic reflux method. The In₂O₃ samples were obtained through optimization of the concentration of sodium citrate, which played a significant role to tune the size of nanocapsules. All synthesized In₂O₃ samples were characterized by using X-ray diffraction (XRD), infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). The morphological study reflects the effect of sodium citrate on the size of nanocapsules and confirms the formation of nanocapsules in the range of 50 nm. Furthermore, the photocatalytic activity of In₂O₃ nanocapsules based photocatalyst was carried out for the degradation of Crystal Violet (CV) dye under natural sunlight illumination. The experiment revealed that the In₂O₃ nanocapsule efficiently degrades 90% of CV within 180 min. This effort recommends the synthesis of In₂O₃ nanocapsule based photocatalyst for rapid degradation of CV under natural sunlight illumination.

Keywords: Crystal violet dye; Indium oxide nanocapsules; Rapid Photocatalytic degradation.