Recent Advances of Triazine-Based Materials for Adsorbent Based Extraction Techniques

Pyrrolo[3,2-b]pyrrole-Based Covalent Triazine Framework: Three-dimensional Organization of Pores Using Nanostructural Spherical Carbon

“…Moreover, the (002) reflection is sharper for 2CNPP-CTF-CNO-700, suggesting that the CNOs also force the formation of microcrystalline structures. Additionally, the (hk) and (hkl) reflections, such as (10) and (110) (Figures 3G,H), which are evidence of the 3D crystalline order (at 2θ = 43.8° and 78°), 40 were also detected for all materials. The separation of the (10) reflection for two (100) and ( 101) at 2θ = 43.8° and 45.1° for the CNOs, respectively, indicates that this nanostructure exhibits a high level of graphitization.…”

“…8 Due to the stable triazine-based linkage, high intrinsic nitrogen content, and ability to add various heteroatoms to their structures, CTFs have the potential to be utilized in several applications, such as photo-and electrocatalysis, batteries, gas adsorption, separation, and pollutant removal. 9,10 The main advantage of CTFs is that a regular twodimensional (2D) organization is obtained without using auxiliary structure-directing agents. 7 The pore size can be adjusted by simply tuning the size and structural features of the starting monomer.…”

Graphitic Aza‐Fused π‐Conjugated Networks: Construction, Engineering, and Task‐Specific Applications

“…Several papers have reviewed the applications of 2D nanomaterials, [2,3,6,14,15] conjugated networks, [4,7,12,16,17] porous organic polymers (POPs), [5,13,[18][19][20][21][22] hypercrosslinked porous polymer (HCPs), [23] porous aromatic frameworks (PAFs), [24] and carbonaceous materials, [25,26] in which CTFs are involved as a subclass material, and specific fields deploying CTFs-related systems, [9,11,27] such as separation [28][29][30][31] and catalysis, [10,[32][33][34] while systematic summarization and comparison of graphitic aza-fused π-conjugated networks including and beyond CTFs have rarely been covered. Considering the blossom of the material category related to graphitic aza-fused π-conjugated networks, it is highly required to figure out the pivotal factors in structure-property-application relationship from diverse levels, which will provide guidance in monomer design and synthesis pathway selection to achieve far-reaching applications.…”

“…Besides CO 2 , the graphitic aza-fused π-conjugated networks performed well as adsorbents toward, but not limited to, the uptake and separation of H 2 , [113][114][115][116] CH 4 , [117] acetylene, ethylene, [118] ethane, propane, [119] NO, [120] SO 2 , [120] and gaseous phase xylene, [121] aiming at gas storage and separation. High efficiency of these materials is also witnessed in the removal and extraction of pollutants and toxic metal ions, [28,122] such as iodine, [123] volatile aromatic pollutants, [124] biorefinery products (e.g., itaconic acid, lysine, and glucosebased mixtures), [125] organic dyes, [126] and mercury. [127] The CO 2 uptake performance of selected materials is summarized in Table 1.…”

Mechanochemistry-driven phase transformation of crystalline covalent triazine frameworks assisted by alkaline molten salts

“…2,4,[6][7][8] The merits of CTFs have been leveraged towards diverse applications in the eld of adsorption, gas uptake, thermo/electro/photocatalysis, and energy storage. 3,[9][10][11][12][13][14][15][16][17] There are mainly three approaches capable of constructing CTF skeletons via the triazine unit formation. Pathway I is the classical and most widely used ionothermal procedure promoted by ZnCl 2 with aromatic nitriles as the starting materials, affording CTFs via the trimerization of cyano groups.…”