Facile Synthesis and Characterization of TiO₂/SnS Nanocomposites by Eco-Friendly Methods

Round 1

Reviewer 1 Report

The manuscript is devoted to the deposition of TiO2/SnS heterostructures and the study of their structural properties.

 Reviewer's comments:

1. What is the relevance and motivation of this research? What are the prospects for the practical application of TiO2/SnS heterostructures? The introduction describes each material separately. At the same time, the Introduction is long and does not show the need for studies of TiO2/SnS heterostructures. For what reason was a pair of TiO2 and SnS semiconductors chosen?

 2. In section 2, specify in the text what c-TiO2 (compact...) and m-TiO2 (meso...) mean. It is indicated that the optical absorption spectrum was measured in the wavelength range of 400 – 900 nm. The following text shows the spectra in the wavelength range 200 – 900 nm (ln 302).

 3. Why do you need to use FTO as a substrate? Why did you decide that after etching, FTO is characterized by insulating properties? As a result of the reduction reaction, oxygen-free tin atoms are formed, and the electron concentration is increased!

 4. I recommend to present an XPS study of each semiconductor layer!

 5. Figures 11-14 and 15 are very difficult to understand what they represent. What is the difference between figures a), b) and c) ....? The designation of composite drawings should be strengthened.

Author Response

Thank you for reviewing our manuscript and improving its quality. We revised it according to the comments and suggestions.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments for author File: Comments.pdf

The authors should improve this paper carefully.

Author Response

Thank you for reviewing our manuscript and improving its quality. We revised it according to the comments and suggestions.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

The Introduction section needs to be improved.  What is the relevance and motivation of this research? What are the prospects for the practical application of TiO2/SnS heterostructures?

Author Response

Authors’ response:

Thank you for reviewing our manuscript and improving its quality. We revised it according to the comments and suggestions.

Reviewer 1

Comments and Suggestions for Authors:

The Introduction section needs to be improved.  What is the relevance and motivation of this research? What are the prospects for the practical application of TiO2/SnS heterostructures? 

The introduction section has been shortened and necessary additional information has been added. Also, all references cited have been reviewed.

The revised text in the manuscript is highlighted in green.