Sizable concentration (2.5–20 mg L⁻¹) of refractory solvent 2-methylpyridine (2Mp) was detected in textile industry effluent that had been subjected to conventional biological treatment prior to discharge. A ratio of 55:45 (acetonitrile to water) was determined for HPLC detection of 2Mp. A novel adsorbent, exfoliated, carboxylic graphene oxide nanocomposite (GON) was synthesized with emphasis on pre-cooling to throttle synthesis exothermicity. Removal characteristics of GON were compared to commercially sold activated carbon (SAC). Similar BOD/COD ratio of the effluent (0.24) and synthetic 2Mp samples (0.22) were observed. SEM, FTIR, EDS, XRD and stability studies were carried out for GON pre-sorption and post-sorption of 2Mp leading to an understanding of interaction mechanism. Batch studies showed GON exhibiting ten times the adsorption capacity (1.5 g L⁻¹), neutral operation pH (7), lower contact time (90 min), better thermodynamic stability and structural disintegration resistance than SAC. Kinetics (pseudo-second kinetics, distinct intraparticle diffusion phases) and equilibrium studies with χ² error minimization (best fit isotherm - Redlich-Peterson) were conducted. Removal data was optimized by 4-Factor Doehlert design (DD) involving temperature, GON dosage, pH and initial 2Mp concentration. The model suggested a strong relation between neutral pH of solution and 2Mp removal efficiency. DD predicted pH = 7.04, GON dosage = 1.80 g L⁻¹, initial 2Mp loading = 16.89 mg L⁻¹ and temperature = 293.82 K as optimal conditions with a removal of 72.10 %. A high R² = 0.992 and error < 2% suggests that the developed model was in coherence with experimental 2Mp-GON sorption results and successful in its prediction.

相当大的浓度（2.5–20 mg L ^-1）在纺织工业废水中检测到难熔溶剂2-甲基吡啶（2Mp），该废水在排放前已经过常规生物处理。测定55:45（乙腈与水的比例）以进行2Mp的HPLC检测。合成了一种新型的吸附剂，片状，氧化石墨烯纳米复合材料（GON），重点在于预冷却以控制合成放热。将GON的去除特性与市售活性炭（SAC）进行了比较。观察到流出物（0.24）和合成2Mp样品（0.22）的BOD / COD比率相似。通过SEM，FTIR，EDS，XRD和稳定性研究对2Mp的GON进行预吸附和后吸附，以了解相互作用机理。批处理研究表明，GON的吸附容量是其的十倍（1.5 g L ^-1），中性操作pH（7），较短的接触时间（90分钟），比SAC更好的热力学稳定性和抗结构崩解性。动力学（伪第二动力学，不同内扩散相）和平衡的研究用χ ²误差最小化（最佳配合等温线-瑞德利奇彼得森）进行的。通过4-因子Doehlert设计（DD）优化去除数据，该设计涉及温度，GON剂量，pH和初始2Mp浓度。该模型表明溶液的中性pH与2Mp去除效率之间有很强的关系。作为最佳条件，DD预测的pH = 7.04，GON剂量= 1.80 g L ^-1，初始2Mp负载= 16.89 mg L ^-1，温度= 293.82 K，去除率为72.10％。高R ² = 0.992且误差<2％表示开发的模型与实验性2Mp-GON吸附结果具有一致性，并成功地进行了预测。