Adsorption Characteristics and Mechanism of Methylene Blue in Water by NaOH-Modified Areca Residue Biochar
Round 1
Reviewer 1 Report
1. The BET area should be given without a dot.
2. Conclusion should be supported by the results obtained.
3. In the Introduction, the authors of the work should also take into account the adsorbents obtained from the residue after supercritical of raw plants, which are also used for the removal of methylene blue.
4. Please add a table in the results obtained by other research teams.
5. There should be a space between the number and the % sign.
6. In Tables 1 and 6, Total hole capacity should be replaced by Total pore volume.
7. The dot symbol in units should be replaced by x.
Author Response
Dear editors and reviewers:
Thank you for your letter and for the reviewers’ comments concerning our manuscript entitled “Adsorption characteristics and mechanism of methylene blue in water by NaOH-modified areca residue biochar” (ID: processes-2088246. Those comments are all valuable and very helpful for revising and improving our paper, as well as the important guiding significance to our researches. We have studied comments carefully and have made correction which we hope meet with approval. Revised portion are marked in red in the paper.
The following document is our response to the reviewer's comment:
Author Response File: 
Author Response.pdf
Reviewer 2 Report
The novelty of this study is not clearly stated in the Introduction. The use of NaOH solutions is commonly used to improve the sorption of materials. The article needs to be supplemented with a more detailed description of the starting material along with a more detailed description of waste collection.
In the results, the authors should introduce the mechanism by adding some figures how MB are adsorbed by the materials (modified and not-modified). Meanwhile, the results of the ARB and M-ARB should be compared with existing literature by adding a table. I also suggest the authors to exam the desorption of the materials and test how many times the materials can be used repeatedly.
Author Response
Dear editors and reviewers:
Thank you for your letter and for the reviewers’ comments concerning our manuscript entitled “Adsorption characteristics and mechanism of methylene blue in water by NaOH-modified areca residue biochar” (ID: processes-2088246. Those comments are all valuable and very helpful for revising and improving our paper, as well as the important guiding significance to our researches. We have studied comments carefully and have made correction which we hope meet with approval. Revised portion are marked in red in the paper.
The following document is our response to the reviewer's comment:
Author Response File: Author Response.pdf
Reviewer 3 Report
In this work the authors investigated NaOH modified areca residue biochar as an methylene blue adsorbent. Also, detailed characterization and adsorption mechanism were studied. This is an well written manuscript with a lot of data. Only minor revision is needed before publication in the Processes journal.
The introduction is too long ant too informative. It is necessary to correct it.
It is necessary to point out the novelty of the research
It is necessary for the authors to compare the obtained results with the results of similar researches that have already been published in the literature
Author Response
Dear editors and reviewers:
Thank you for your letter and for the reviewers’ comments concerning our manuscript entitled “Adsorption characteristics and mechanism of methylene blue in water by NaOH-modified areca residue biochar” (ID: processes-2088246. Those comments are all valuable and very helpful for revising and improving our paper, as well as the important guiding significance to our researches. We have studied comments carefully and have made correction which we hope meet with approval. Revised portion are marked in red in the paper.
The following document is our response to the reviewer's comment:
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
accepted
Reviewer 2 Report
Accept in present form
