Peer-Review Record
Efficient Rhodamine B Dye Removal from Water by Acid- and Organo-Modified Halloysites
Minerals 2022, 12(3), 350; https://doi.org/10.3390/min12030350
Reviewer 1:
Anonymous
Reviewer 2:
Anonymous
Minerals 2022, 12(3), 350; https://doi.org/10.3390/min12030350
Submission received: 26 January 2022
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Revised: 24 February 2022
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Accepted: 11 March 2022
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Published: 14 March 2022
(This article belongs to the Topic Industrial Application of Clays and Clay Minerals)
Round 1
Reviewer 1 Report
In my opinion, in this work, the authors extensively studied and successfully describe the ability of modified-halloysite in Rhodamine B Dye removal from water. However, there are the following minor comments that should be checked/corrected before the publication in Minerals journal.
- The abbreviations HU, HU-SA and HU-OCPD that are used in the abstract (lines 21, 22), should be explained previously.
- In the experimental part lines 87-89, please give more details for the amount of solvent, halloysite and modified compounds.
- In the experimental part lines 89-90, please refer the technique that you have used for the separation of the obtained product from the unreacted monomer. Also the obtained products were washed and drying before collection?
- In the section “2.3. Characterization” lines 103-104. Please give more details for the measurement conditions. For example, the outgassing conditions for the samples before the N2 adsorption-desorption measurement.
- It will be helpful for the readers to add the scale bars in the photos, in Figure 1.
- Please add the figure of the FT-IR spectra of the materials.
- Line 157: HU-KS or HU-SA? Also in table 3 it is HU-SA instead of H-SA.
- Line 197: “of the H sample and (Figure 3) are type IV…” Please correct the sentence with the right sample names.
- Why HU-SA shows lower wettability than HU while HU-SA has higher specific surface area and pore volume? A possible explanation should be given in the discussion.
- The kinetic study and the mechanism explanation will be more complete if the free energy Gibbs calculations are added.
- Table 7: Please check the qm values for the samples HU, HU-SA and HU-OCPD. These values are not the same as the abstract, table 6 and conclusions.
- The pH conditions of the adsorption in each case should be added in Table 7.
Comments for author File: 
Comments.pdf
Author Response
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Author Response File: 
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Reviewer 2 Report
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Comments for author File: Comments.pdf
Author Response
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Author Response File: Author Response.docx
