@article {46904, title = {Morphological evolution of two-dimensional porous hexagonal trimesic acid framework}, journal = {ACS Applied Materials \& Interfaces}, volume = {12}, year = {2020}, month = {APR }, pages = {15588-15594}, type = {Article}, abstract = {

Hexagonal single crystal structure (Form II) of trimesic acid (TMA) has been isolated by dissolving the interpenetrated Form I of TMA in tetrahydrofuran. Form II (hexagonal) was converted to Form I (interpenetrated) at room temperature through some intermediate structures. A detailed time-dependent FESEM study shows that the external morphology of Form II (hexagonal) is a hollow hexagonal tube that mimics its crystal structure. The block-shaped (morphology) of Form I (interpenetrated) was converted to the hollow hexagonal tube through some intermediate morphologies which are corresponding to particular crystal structures. Here, we have established a strong correlation between crystal structures with the morphology. These hollow tubes have been employed for Rhodamine B dye adsorption studies and showed an uptake of 82\%, much more significant than Form I (interpenetrated) (39\%) due to the presence of a pore channel in the crystal structure.

}, keywords = {dye adsorption, hollow hexagonal rod, hydrogen-bonded organic framework, morphology evaluation, trimesic acid}, issn = {1944-8244}, doi = {10.1021/acsami.0c01398}, author = {Tothadi, Srinu and Koner, Kalipada and Dey, Kaushik and Addicoat, Matthew and Banerjee, Rahul} }