Aggregation behavior of biowaste Litchi Chinensis (LC) seed in three different solvents of varying polarity [water (80), formamide (1 0 8), and glycerol (37)] has been studied. Nematic liquid crystalline phase has been obtained for studied systems as confirmed by a polarizing optical microscope (POM). Potential of the LC seeds has been checked to remove the Rhodamine B (RhB) dye from the wastewater. Effect of dye varying concentration (1 mg/L, 3 mg/L, 5 mg/L, 7 mg/L and 10 mg/L) varying pH (3,6 and 9), and contact time (0 to120 sec) on adsorption process have been evaluated. About 52% of dye removal efficiency is achieved with bare 50 mg adsorbent at pH≈ 6. Pseudo-first-order kinetics is found best fitted for the adsorption process (R²~0.98). Freundlich isotherm is found best fitted to the adsorption data which is also vindicated by a greater value of R²~0.95. Hydrogen bonding, electrostatic interactions, and pi-pi interaction between RhB and LC seeds (saponin) could be responsible for the adsorption process. These results indicate that LC seed can act as a perfect surfactant for lyotropic assemblies and also an effectual natural adsorbent for the dye adsorption and cleaning of aquatic systems.

已经研究了生物废物荔枝 (LC) 种子在三种不同极性的溶剂 [水 (80)、甲酰胺 (1  0  8) 和甘油 (37)] 中的聚集行为。通过偏光显微镜 (POM) 证实，研究系统已获得向列液晶相。已经检查了 LC 种子从废水中去除罗丹明 B (RhB) 染料的潜力。染料不同浓度（1 mg/L、3 mg/L、5 mg/L、7 mg/L 和 10 mg/L）、不同 pH（3,6 和 9）和接触时间（0 到 120 秒）的影响吸附过程进行了评价。在 pH≈6 时使用 50mg 吸附剂可实现约 52% 的染料去除效率。发现伪一级动力学最适合吸附过程 (R ²~0.98）。发现 Freundlich 等温线最适合吸附数据，R ² ~0.95的更大值也证明了这一点。RhB 和 LC 种子（皂苷）之间的氢键、静电相互作用和 pi-pi 相互作用可能是吸附过程的原因。这些结果表明，LC 种子可以作为一种完美的溶致组装表面活性剂，也是一种有效的天然吸附剂，用于染料吸附和水生系统的清洁。