Supramolecular inclusion complexes with lower critical solution temperature (LCST) properties were investigated for the first time as forward osmosis (FO) draw solutes. Randomly methylated-β-cyclodextrin (Rm-β-CD) host molecules accommodate polymerized ionic liquids (([vbim]TFSI)_n PILs) through their hydrophobic TFSI⁻ anions as guests. LCST properties were tuned by varying the chain lengths of ([vbim]TFSI)_n, from which, short-chain oligo([vbim]TFSI) was found most suitable. Draw solutions (DS) of Rm-β-CD/oligo([vbim]TFSI) complex have highly tunable cloud-point temperatures (T_c), fast LCST kinetics and sufficient osmotic properties for an efficient FO. Under PRO mode, 0.5 M Rm-β-CD/0.078 M oligo([vbim]TFSI) induced competitive FO water flux (J_v ~13.73 L m⁻²h⁻¹) and negligible reverse solute flux (J_s ~4.41 × 10⁻³ mol m⁻²h⁻¹) against DI water feed. It successfully processed different saline feeds (0.034 M and 0.6 M NaCl) with reasonable FO performance and superior J_s/J_V ~0.001 mol m⁻²h⁻¹, demonstrating its competence for FO desalination. When heated slightly above its T_c = 29 °C (T_TP = 30 °C), thermal precipitation (TP) is ensued with the release of TFSI⁻ anions in oligo([vbim]TFSI) from Rm-β-CD. Due to its hydrophobicity, oligo([vbim]TFSI) precipitates while entrapping the suspended Rm-β-CDs between its chains causing flocculation and sedimentation. Thus, with only +5 °C heating above FO temperature (25 °C), 95% of draw solutes are effectively recovered from the spent DS after settling. Residual (~5%) Rm-β-CD in the DS supernatant is subsequently removed via nanofiltration at 99.33% rejection, producing non-toxic water effluent based on in vitro cytotoxicity results. Energy consumption estimates reveal the feasibility of Rm-β-CD/oligo([vbim]TFSI) as it requires minimal heat energy for recovery. This study offers new insights on the potential of host-guest complexes as a new class of energy-efficient draw solutes for FO desalination technology.

具有较低的临界溶液温度（LCST）特性的超分子包裹体复合物是首次进行正向渗透（FO）吸引溶质研究。随机甲基-β环糊精（RM-β-CD）的主体分子容纳了聚合的离子液体（（[vbim] TFSI）_ñ PILS）通过它们的疏水TFSI ^-阴离子作为宾客。通过改变（[TFB] TFSI）_n的链长来调整LCST特性，从中发现最适合的短链寡核苷酸（[TFB] TFSI）。Rm-β-CD/ oligo（[vbim] TFSI）配合物的吸取溶液（DS）具有高度可调的浊点温度（T _c），快速的LCST动力学和足够的渗透性以形成有效的FO。下PRO模式，0.5M RM-β-CD / 0.078中号低聚（[vbim] TFSI）导致的竞争FO水通量（Ĵ _v〜13.73 L M ^-2 ħ ^-1）和可忽略的反向磁通溶质（Ĵ_小号〜4.41× 10 ^-3 mol m ^-2 h ^-1）的去离子水。它成功地处理不同盐水进料（0.034 M和0.6M的NaCl）中以合理的FO性能和优异的Ĵ_小号/ J _V〜0.001摩尔米^-2 ħ ^-1，表明其为FO脱盐能力。当略高于其加热Ť _Ç  = 29°C（Ť _TP  = 30℃），热沉淀（TP）是与随之而来的TFSI释放^-阴离子寡从RM-β-CD（[vbim] TFSI）。由于其疏水性，寡聚（[TFBI] TFSI）会沉淀，同时将悬浮的Rm-β-CD截留在其链之间，从而导致絮凝和沉淀。因此，仅在+0°C高于FO温度（25°C）的温度下加热，沉降后即可从废DS中有效回收95％的牵引溶质。随后通过纳滤以99.33％的排斥率去除DS上清液中的残留（〜5％）Rm-β-CD，从而产生基于体外的无毒废水细胞毒性结果。能耗估算揭示了Rm-β-CD/ oligo（[TFB] TFSI）的可行性，因为它需要最少的热能进行回收。这项研究提供了关于客用客体复合物的潜力的新见解，因为客体-客体复合物是用于FO淡化技术的一类新型节能引流溶质。