In Situ Growth of ZIF-8 Nanocrystals on the Pore Walls of 3D Ordered Macroporous TiO2 for a One-Pot Cascade Reaction
Round 1
Reviewer 1 Report
Research article on "In situ growth of ZIF-8 nanocrystals on the pore walls of 3D or3 dered macroporous TiO2 for one-pot cascade reaction by Jing Chen et al, presented work very well and with appropriate analysis data. I recommend this article for the publication in Catalysts with minor suggestion to that ask the authors to keep Chemdraw chemical structure must be in the same format with same style in whole paper.
Author Response
It is a great honor to get your recognition for this work. And we have made a revision according to your opinion to keep Chemdraw chemical structure be in the same format with same style in whole paper.
Reviewer 2 Report
The manuscript by Zhang and co-workers report in situ growth of ZIF-8 on the pore walls of ordered TiO2 for one-pot cascade reactions. Furthermore, the authors compare the catalytic activity of ZIF-8@3DOM TiO2 and 3DOM TiO2.This work is of interest to readers and could be suitable for Catalysts after consideration of the following points:
1. The authors should compare the PXRD, FT-IR, and surface area of recyclable ZIF-8@3DOM TiO2 with pristine ZIF-8@3DOM TiO2 to prove the retention of porosity, crystallinity and stability.
2. The authors should studied the one-pot cascade reaction in presence of ZIF-8 only. Furthermore, it would be handy to study the effect of electron withdrawing or electron donating substituents.
3. Thermal stability of ZIF-8@3DOM TiO2, 3DOM TiO2, should be compared with ZIF-8.
4. For an insight, it would be important to compare ZIF-8@3DOM TiO2 catalytic activity with other established framework catalysts for one-pot aromatic alcohol oxidization and Knoevenagel condensation cascade reaction.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 3 Report
The paper entitled “In situ growth of ZIF-8 nanocrystals on the pore walls of 3D or-2 dered macroporous TiO2 for one-pot cascade reaction” by Jing Chen, Yingchun Guo, Tengteng Kang, Xingchi Liu, Xiaomei Wang, and Xu Zhang submitted for publication in Catalysts aims to have obtained a MOF nanoreactor able to oxidize alcohols and also the Knoevenagel condensation.
The references could be more updated, but mostly the list is too short. Give a look at recent studies where MOF immobilize, generate sites to anchor catalysts…: “Noncovalent Immobilization of Cationic Ruthenium Complex in a Metal-Organic Framework by Ion Exchange Leading to a Heterogeneous Olefin Metathesis Catalyst for Use in Green Solvents”, DOI: 10.1021/acs.organomet.9b00287; “Covalent and Ionic Capacity of MOFs To Sorb Small Gas Molecules”, DOI: 10.1021/acs.inorgchem.8b00670; “Photocatalytic properties of TiO2 and Fe-doped TiO2 prepared by metal organic framework-mediated synthesis”, DOI: 10.1016/j.cej.2018.11.132…
There is a contrast of length with the results, which are a bit too long. But now it is useless to start cutting parts, it would not improve the manuscript qualitatively. It is not easy to read the results, and this is somewhat negative.
The synthesis does not lead to concerns, but the next catalysis is less clear. The combinations in Table 2 are not that clear, to understand for example the random mixtures to be compared with the ZIF-8@3DOMTiO2. And even more strange is the comparison with 3DOMTiO2 since product C is not obtained at all. Increasing the temperature, these discrepancies tend to disappear?
Overall, the study once improved the clarity of the catalytic results, and the other concerns, it could be a good paper for Catalysts.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report
The manuscript by Zhang and co-workers report in situ growth of ZIF-8 on the pore walls of ordered TiO2 for one-pot cascade reactions. Furthermore, the authors compare the catalytic activity of ZIF-8@3DOM TiO2 and 3DOM TiO2. The manuscript have been carefully revised, addressed all the comments / suggestions proposed by the reviewers and is now suitable for Catalysts.
