Research progress of cellulose supported metal based catalytic system in organic reactions

Nowadays, metal-based catalysts have become the mainly catalyst in the field of catalysis, which also have some problems such as difficult to be separated and recycled, easily remain, high cost, as well as instability of catalysts and substrate. One effective way to solve the above problems is loading with polymer carrier.Cellulose is the most abundant green and natural polymer on the earth. As a catalyst carrier, cellulose has the excellent characteristics with wide source, biodegradability, non-toxic and good biocompatibility. Meanwhile, cellulose also has a large number of hydroxyl groups on the molecular structure, which can be easily modified and loaded with metal catalysts in various ways. In this paper, the advance of cellulose supported zero valent metal nanoparticles and non-zero valent metal as catalysts were reviewed, and the catalytic activities of the supported catalysts in redox reaction, Heck reaction, Suzuki reaction and other reactions were summarized; by comparing the mechanism of action between carrier and metal in the system, the synergy between different loading modes and the difference of catalytic activity were expounded.