Effective Removal of Basic Red 46 with Ti₃C₂ Powder Modified with Citric acid

Abstract

MXene, an emerging two‐dimensional nanomaterial, possessed large specific surface area good hydrophilicity and tunable interlayer spacing which had attracted the attention of scientists. However, MXene itself was very easy to stack. Here, we reported one MXene‐based composite, using Ti3C2 as a matrix, citric acid (CA) modifying alkalized Ti3C2 (Alk‐TC) were compounded to prepare citric acid‐alkalized Ti3C2 composite (CA‐Alk‐TC) which was used subsequently as an adsorbent for adsorbing basic red 46. The results of batch adsorption experience indicated that the adsorption kinetics conformed to the pseudo‐second‐order kinetic model, and the adsorption thermodynamics corresponded to the Langmuir isotherm model. When the reaction condition was 60 min, 5 mg, pH 5, 140 mg/L, and 308 K, the Langmuir monolayer adsorption capacity of basic red 46 reached 230.95 mg/g.

Plasmon assisted Ti3C2Tx grafting and surface termination tuning for enhancement of flake stability and humidity sensing performance

“…Most of them utilize the noncovalent interaction of MXenes akes (using, for example, hydrogenbinding or electrostatic interactions) with various organic small molecules or polymers. [38][39][40][41][42][43] Such approaches are favored by their simplicity, but the stability of the surface functionalization (especially under different operating conditions) can be low. As an alternative, covalent functionalization of MXenes with the formation of strong bonds between the akes and graed organic moieties has been proposed.…”