Synthesis of amphiphilic and porous copolymers through polymerization of high internal phase carboxylic carbon nanotubes emulsions and application as adsorbents for triazine herbicides analysis

Fabrication and application of a MIL-68(In)–NH2 incorporated high internal phase emulsion polymeric monolith as a solid phase extraction adsorbent in triazine herbicide residue analysis

“…MIL-68(In)-NH 2 /polyHIPEs monoliths were fabricated by polymerization of Pickering HIPEs as previously reported. 5,6,30 Briey, 300.0 mL EHA, 150.0 mL DVB, and 150.0 mL Span 80 were mixed with ultrasonication as organic phase in a 10 mL polypropylene centrifuge tube. 40 mg MIL-68(In)-NH 2 and 19.0 mg AIBN were dispersed in 3.5 mL water under ultrasonication as water phase in a 10 mL polypropylene centrifuge tube.…”

“…The sample pH value can affect extraction efficiency by inuencing the existing forms of simazine (pK a 1.62), prometon (pK a 4.36) and prometryn (pK a 4.05) because of the protonation and de-protonation reactions, 3,5,6 thus the effect of the sample pH on their recoveries was investigated. As a result in Fig.…”

“…Generally, herbicide residues are likely to exist in different water samples at low concentration, therefore, effective sample preparation is necessary before instrumental detection in order to improve method sensitivity and accuracy and/or prevent the used apparatus from damaging by other interferents. [4][5][6][7][8][9][10] Among various sample preparation, solid phase extraction (SPE) is the most widely used extraction technique for extracting triazine herbicides from water samples because of its advantages of high recovery, high enrichment factor, low solvent consumption, and short extraction time. [2][3][4][5][6] As a result, various SPE adsorbents, including oxidized single-walled carbon nanohorns, 2 triazine rings-containing porous aromatic frameworks, 3 poly(high internal phase emulsions) (polyHIPEs), 5,6 molecular imprinted polymers, 4,11,12 carbazole-based porous organic polymers, 13 hydrazone-based covalent triazine polymers, 14 and metalorganic frameworks (MOFs) [15][16][17][18] have been fabricated and applied in the SPE of triazine herbicides in environmental samples.…”

“…[28][29][30] In addition, HPLC method is a rapid, sensitive and reproducible way to determine trace analytes in complex samples, [31][32][33][34] and thus has been used to analyse triazine herbicides. 3,5,6,12,18 To the best of our knowledge, however, MOFs-polyHIPEs as SPE adsorbents have not been reported in the separation and analysis of triazine herbicides by combining with HPLC method.…”

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

“…Specifically, the hierarchically porous structure of sorbent can hold some these viscous oils which results in a high oil sorption capacity. [124][125][126][127][128][129][130][131][132][133] On the other hand, the absorption mechanism happens not only on the surfaces but mostly inside the polymer matrix with an extensive polymer matrix swelling (Figure 4B). The Flory−Rehner theory (Equation ( 1)) can be used to determine the network structure (i.e., crosslinking density and molecular weight between cross-links) and provide the structure−property relationships.…”