Heavy metal pollution containing large amounts of oil pollutants is becoming one of the major water pollution categories. The presence of oil can seriously hinder the performance of existing heavy metal ion scavengers. In order to change this embarrassment, a self-cleaning titanate hydrogel microsphere is developed and applied to the treatment of oily heavy metal wastewater. Gel functionalized titanate microspheres are prepared by a simple sol–gel process through ionic liquid dissolved cellulose solution as raw materials. As a result, the hybrid hydrogel microspheres inherit and integrate the intrinsic properties of both titanate and cellulose hydrogels, and exhibit an excellent ability to handle this oily wastewater. In detail, the oil contact angle underwater for the THMS is greater than ~ 153°, and its adsorption capacity of Cu(II) ions is up to 176.4 mg/g. Furthermore, it shows a significant improvement in adsorption efficiency, application range, and recycling behavior. More importantly, this easy-to-use self-cleaning method can be extended to a variety of other adsorbents to efficiently treat oily wastewater. In summary, this work may provide a viable and easy way for oily wastewater treatment from multiple sources.

含有大量石油污染物的重金属污染正成为主要的水污染类别之一。油的存在会严重阻碍现有重金属离子清除剂的性能。为了改变这种尴尬，开发了一种自清洁的钛酸酯水凝胶微球并将其应用于含油重金属废水的处理。凝胶功能化的钛酸酯微球是通过简单的溶胶-凝胶工艺，以离子液体溶解的纤维素溶液为原料制备的。结果，杂化水凝胶微球继承并整合了​​钛酸酯和纤维素水凝胶的内在特性，并具有出色的处理含油废水的能力。详细而言，THMS在水下的油接触角大于〜153°，Cu（II）离子的吸附量高达176.4 mg / g。此外，它在吸附效率，应用范围和再循环行为方面显示出显着的改善。更重要的是，这种易于使用的自清洁方法可以扩展到多种其他吸附剂上，以有效地处理含油废水。总而言之，这项工作可能为多种来源的含油废水处理提供可行且简便的方法。