Modified-chitosan and graphite oxide magnetic nano absorbent and preparation and application thereof

• Main Authors: LYU HAIXIA, XIE ZENGHONG, WANG XIAOMING
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a modified-chitosan and graphite oxide magnetic nano absorbent and a preparation and application of the modified-chitosan and graphite oxide magnetic nano absorbent, and belongs to the field of absorbing material preparation. By the adoption of a one-step thermal solvent method, functional monomer chitosan and graphite oxide are directly added to a magnetic source environment with the high-temperature and high-pressure conditions, and a solid-phase extraction material is formed in a synthesis mode. The synthesis method is simple, the process is easy to control, a great number of functional groups of the graphite oxide and chitosan are combined, the absorbent has excellent absorption function, firm in bonding, stable in property, good in ruggedness, larger in enrichment factor, capable of being used in a wider PH value range and suitable for enrichment pretreatment of trace amount Cu (II) in the environmental water sample.