Recent oil spills endanger the aquatic ecosystem besides huge loss of natural resources, hence require immediate attention. To develop economical solution for combating oil spills, discarded jute bags, with 60–65% cellulose were used to fabricate cellulose sponge using sol-gel method followed by freeze drying. The sponge surface was rendered superhydrophobic by dip coating with Tetraethyl-orthosilicate/Hexadecyltrimethoxy Silane (TEOS/HDTMS). The pristine and dip coated hydrophobic cellulose sponge (DHCS) were characterized for structure, morphology and hydrophobicity. FE-SEM confirmed the hydrophobic coating of TEOS/HDTMS on sponge surface, while superhydrophobicity was established with static contact angle of 151°. DHCS exhibited oil water separation efficiency of 98.5% and 97.2% and equilibrium adsorption efficiency of 35.55 g/g and 31.37 g/g for diesel oil and motor oil, respectively. The adsorption follow pseudo-second order kinetics with regression coefficients, R² > 0.99. Equilibrium studies indicated that the Freundlich isotherm was best fit isotherm for oil water removal by DHCS. DHCS displayed significant recyclability with slight reduction of adsorption capacity to 85.2% for diesel oil and 82.5% for motor oil of its initial value after 10 cycles.

除了自然资源的巨大损失外，最近的漏油事件还危害着水生生态系统，因此需要立即予以关注。为了开发出经济有效的解决油泄漏的解决方案，使用了60-65％纤维素的废弃黄麻袋，采用溶胶-凝胶法，然后进行冷冻干燥，来制造纤维素海绵。通过用原硅酸四乙酯/十六烷基三甲氧基硅烷（TEOS / HDTMS）浸涂使海绵表面具有超疏水性。对原始和浸涂的疏水性纤维素海绵（DHCS）的结构，形态和疏水性进行了表征。FE-SEM证实了TEOS / HDTMS在海绵表面具有疏水性，而超疏水性则建立在151°的静态接触角上。DHCS的油水分离效率为98.5％和97.2％，平衡吸附效率为35.55 g / g和31。柴油和机油分别为37 g / g。吸附遵循伪二级动力学，具有回归系数R² > 0.99。平衡研究表明，Freundlich等温线最适合用DHCS去除油水。DHCS在10个循环后显示出显着的可回收性，其对柴油的吸附能力略有下降，分别降至85.2％和82.5％。