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Cellulose,as the most plentiful and renewable resource in nature,is low-cost,environment friendly and biodegradable.It is of great significance to explore and utilize natural cellulose in order to substitute petroleum resources.Nano-crystalline cellulose(NCC)not only possesses the basic structure and performance of natural cellulose,but also possesses the characteristics of nano-particles,such as large specific surface area,strong adsorption capacity and high reactivity.