Rapid Removal of Cr(VI) from Wastewater by Surface Ionized Iron-Based MOF: Ion Branching and Domain-Limiting Effects

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

The following minor corrections are needed:

Result & Discussion 

3.1 Characterization

Line 148   In addition , the sioze of the CNT@MIL-10(Fe) increased compared to

Line 153   nanotubes were almost the same as

Line 155   did not prevent the generation of MIL-10 crystals

Line 164 peaks were also present in the remaing four materials

Line 436   Figure

Line 442  Figure

Comments on the Quality of English Language

The quality of english language was adequate with minor corrections as indicated above.

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

Dear Authors,

Kindly consider the following comments and concerns:

1. The abstract does not need to delve into the three stages of adsorption. Ensure it aligns with the criteria of an abstract.
2. Clearly articulate the novelty of the article.
3. Specify the sources of the chemicals and provide their specifications.
4. In Figure 2, I couldn't locate slide e at 200 nm. Maintain consistency in presenting the results.
5. Compare your results with other products in the market/literature for context.
6. Clarify the control used in this research.
7. Provide information on the recommended capacity of the adsorbent for commercial use.
8. Outline recommendations for future research.
9. No investigate of the sensitivity and selectivity of the product has been reported.
10. If possible, provide SEM for the materials before and after usage.

Comments on the Quality of English Language

I recommend that the authors review the article and make minor edits.

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

In this study, adsorbents consisting of a metal and a ligand for chromium are prepared, their adsorption capacity is evaluated and steric conformation inhibition is discussed.　The content of the paper is based on an academic description and is basically unproblematic.　It is stated that hexavalent chromium is removed or adsorbed, but it should be explained whether it is reduced to trivalent chromium and then adsorbed, as discussed in many reports, or whether the total chromium remains the same but appears to be reduced by the reduction.

Equations (1) and (2) are not aligned.

 

The 'sodium number of sodium carbonate (Na2CO3)' in L432 is not under subscripted.

 

Author Response

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Author Response File: Author Response.pdf

Round 2

Reviewer 2 Report

Comments and Suggestions for Authors

The authors have made diligent efforts to address the comments provided by the reviewers.

Comments on the Quality of English Language

The English language is acceptable.