Method for producing windmill palm tegument activated carbon fiber with biological-chemical method

Abstract

The invention provides a biological-chemical method for preparing activated carbon fiber of palm tegument. The method comprises steps that: (1) biological fermentation treatment: the palm tegument is drawn into thread like or cut into pieces to be fermented in a fermentation tank for 10 to 14 days; during the fermentation period, the fermentation tank is under the oxygenic condition and the oxygen-free condition alternately by being intermittently exposed to the air, and the time interval is 20 minutes; (2) chemical soakage treatment: the fermented palm tegument is washed with water for once to twice and then the water is drained; the palm tegument is dipped in the calcium phosphate with the concentration of 40 to 60 percent according to the weight ratio of 1:2.0-2.6 for 6 to 8 hours and then carbonized and activated at 390-450 DEG C for 70-90 minutes, then washed to pH 6.5-7.0 by deionized water at 70-90 DEGC and dried or naturally dried to obtain the activated carbon fiber of palm tegument. The invention combines the biological and chemical method for preparing the activated carbon fiber of palm tegument and is fast in preparation. The activated carbon fiber of palm tegument with large absorption volume, large surface area, abundant micropores and high mechanical strength can be obtained by using the method.

Description

technical field

[0001] The invention relates to a method for preparing palm skin activated carbon fibers by using palm skin through a combined biological and chemical method. Background technique

[0002] The production of activated carbon fiber (ACF) is generally to carbonize and activate the organic precursor fiber after stabilization treatment at low temperature. Organic fibers that can be used as ACF precursors are cellulose-based, PAN-based, phenolic-based, pitch-based, etc. However, its preparation method is relatively complicated, high in cost and serious in pollution.

[0003] In recent years, the use of natural polymer materials to prepare carbon fibers has attracted the attention of researchers. Among them, some researchers use natural fibers such as cotton and bagasse as raw materials to prepare activated carbon fibers. However, the cost of the former is high, and the performance of the fibers produced by the latter is not ideal. Contents of the invention [...