Dyes, organic solvents and oils pose a serious threat to the water resources and this is of immense global concern. For the removal of such harmful materials from wastewater, a novel aerogel was synthesized from a hydrogel precursor, formed by incorporating nano bentonite into the dialdehyde nanocellulose and carboxymethyl chitosan mesh. The material showed exceptional adsorption capacity towards diverse pollutants like dyes, organic solvents, and oils. This ultralight aerogel yielded maximum dye removal capacity up to 29.842 g g-1 and 20.927 g g-1 within the first 5 min of the reaction, over a wide range of pH towards Bromophenol blue and Direct Blue 6 respectively and up to 50 times of its own weight in case of oil and organic solvents. This eco-friendly aerogel showed a slight drop in the adsorption capacity after ten cycles of oil and organic solvents, which paves a path in its application in the removal of multiple classes of the pollutant from wastewater.

染料，有机溶剂和油类对水资源构成严重威胁，这是全球范围内极为关注的问题。为了从废水中去除这种有害物质，从水凝胶前体合成了新型气凝胶，该水凝胶是通过将纳米膨润土掺入二醛纳米纤维素和羧甲基壳聚糖网中而形成的。该材料对染料，有机溶剂和油等多种污染物均具有出色的吸附能力。这种超轻的气凝胶在反应的前5分钟内，分别在大范围的pH范围内对溴酚蓝和直接蓝6产生了最大的染料去除能力，分别高达29.842 g g-1和20.927 g g-1，最高可达50倍于25在油和有机溶剂的情况下其自身重量。