This review presents a strategy for generating value-added nanocellulose adsorbent from oil palm biomass via acid hydrolysis for the treatment of organic pollutants in water. The acid hydrolysis process was optimized to obtain high-purity nano cellulose with a high surface area, which was then characterized using various techniques. The adsorption capacity of the nanocellulose adsorbent was evaluated for the removal of various organic pollutants from water, and the results showed that it had a high adsorption capacity and fast adsorption kinetics. The review also showed that nanocellulose adsorbent can be easily regenerated and reused without significant loss of adsorption capacity, making it a cost-effective and environmentally friendly option for treating organic pollutants in water. Overall, this review demonstrates the potential of using acid hydrolysis to generate value-added nano cellulose adsorbent from oil palm biomass to treat organic pollutants in water. [ABSTRACT FROM AUTHOR]