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The manuscript needs a detailed major revision as per suggestions from both the referees. The manuscript must be critically revised.
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You need some revisions or clarifications regarding the research methods and results you obtained. see comments.
You need some revisions or clarifications regarding your research methods and results. see comments.
this article is good enough to be published with some improvements
The only two figures presented in the manuscript are far insufficient, with one schematic diagram and one figure showing the removal efficiencies. Please supplement sufficient results of the adsorbent characterizations (XRD, SEM, IR, etc.) and the extraction in the manuscript.
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1.The quality of FTIR spectra in Fig. S9 is not good and the peaks cannot be well recognized.
2.Please add the scale bar in SEM images.
3.The BET analysis results of ZSM-5 in Table S1 are incorrect. The unit of pore size is not cm3/g. Please also supplement the pore volume data.
4.It is strange that the BET surface area increased after treatment, for example, ZnGZ-M-F, ZnGZ+M-F, ZnGZ-M+F and ZnGZ+M+F.
5.Please add an analysis of the potential mechanism of the enhanced extraction of copper ions.
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