In recent decades, there has been increased interest in the manufacturing of nanoscale cellulosic particles. The excitement generated is the result of its distinction properties of nanocellulose. The top-down destruction of cellulosic fibers can be conducted by mechanical disintegration , acid hydrolysis , TEMPO-mediated oxidation  and enzyme-assisted process , all of which are preferential and widely accepted as promising processes employed for converting the cellulosic feedstock to its nano-dimensional structure. Even though the mechanical process is the most direct way to produce nanocellulose by diminishing the cellulosic fibers using mechanical stress along the longitudinal axis of the cellulose structures, the treatment is not cost effective due to high energy consumption, the involvement of complex equipment, and repetitive process. In addition, enzymes hydrolysis is a costly treatment as the enzymes are hard to recycle and the process requires a longer period (2–6 weeks) to achieve a satisfactory conversion (~80%) . Therefore, acid hydrolysis conducted by strong mineral acid such as sulfuric (H2SO4), hydrochloric (HCl), and phosphoric acid (H3PO4) is recognized as the most effective to hydrolyze defective cellulose crystalline parts while leaving the highly crystalline nano-sized cellulose segments unaltered . In the case of strong acid treatment, the hydronium ions (H3O+) will attack and cleave β-1,4-glycosidic linkages within the single cellulose chains as well as break down the extensive network of intra- and intermolecular bonds between the cellulose chains . Unfortunately, the yielded sulfated nanocellulose suffers from low product yield and less thermal stability compared to that of its starting material due to the introduction of active sulfate ester groups on the fiber surface that can be detrimental to the thermal stability of treated product . Moreover, this process is highly corrosive, hazardous, and requires harsh conditions and the involvement of tedious neutralization treatment of concentrated acidic effluent, which further limits its industrialization. For HCl hydrolysis, the aqueous nanomaterial suspensions tend to flocculate rather than well-disperse, and only a low yield of 20% could be obtained . Even if some studies reported a higher yield of 60.5% via phosphotungstic acid hydrolysis, the hydrolysis efficiency was low and the reaction process is time-consuming , or else mechanical activation (ultrasonication, ball milling or mechanochemical) is necessary to enhance the competence . Similar to that of diluted or organic acids that have been proposed for milder hydrolysis reactions, such treatments were less effective in hydrolyzing the high recalcitrant cellulose macromolecule. For these reasons, an increasing effort has been made to use the other mineral acids for cellulose hydrolysis. Recently, the mixed acid solution (hydrochloric acid and sulfuric acid) may be a good choice for the production of CNC suspension, but this process still also took a long period.