CN103991870B

CN103991870B - A kind of method of preparing active carbon with fish scale

Info

Publication number: CN103991870B
Application number: CN201410195107.6A
Authority: CN
Inventors: 张建; 王静; 冯昭龙; 吕冬梅; 张成禄; 刘海; 郭子彰
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2014-05-09
Filing date: 2014-05-09
Publication date: 2016-05-25
Anticipated expiration: 2034-05-09
Also published as: CN103991870A

Abstract

The present invention relates to a kind of with fish scale be the method that raw material is prepared active carbon, the method adopts fish scale as the raw material of preparing active carbon, taking phosphoric acid as activator, fish scale is carried out to pretreatment, then the fish scale silk of processing and phosphoric acid are mixed by certain impregnating ratio, carry out again carbonization-activation, cleaning, dry, can obtain hole prosperity, the large fish scale active carbon of specific area, the method preparation is simple, and product yield is high, suction-operated is strong, can effectively remove noxious pollutant.

Description

A kind of method of preparing active carbon with fish scale

One, technical field

The invention belongs to active carbon preparing technical field, particularly relate to a kind of with fish scale be the method that raw material is prepared active carbon.

Two, background technology

Active carbon, because of its flourishing internal voids, larger specific area, very strong adsorption capacity, is widely used in processing industrial tail gas, decolouring and removal toxic organic compound and heavy metal ion. Fish scale is mainly made up of collagen and calcium phosphorus substance. In producing or living, fish scale is often regarded as rubbish, waste material, is often arbitrarily abandoned it, contaminated environment. Along with the raising of living condition, the consumption meeting of fish is constantly increased, thereby cause increasing fish scale refuse. Through retrieval fish scale be still one still undeveloped active carbon fire material.

Three, summary of the invention

The object of the invention is with fish scale, as the raw material of preparing active carbon, taking phosphoric acid as activator, to propose a kind of method of preparing fish scale active carbon.

The preparation technology of fish scale active carbon of the present invention is as follows:

(1) pretreatment of fish scale is dried fish scale at 105 DEG C, then with scissors, dry fish scale is cut into the filiform of 1mm length;

(2) dipping, mixes load weighted fish scale silk and a certain amount of phosphoric acid by certain impregnating ratio (1:0.5-3.0), dipping 6-12 hour;

(3) activation, is transferred to crucible by the sample having flooded, and puts into Muffle furnace, is warming up to carburizing temperature 450-750 DEG C, insulation 30-90 minute, naturally cooling rear taking-up;

(4) clean, activated carbon sample proceeded to beaker, repeatedly clean with running water, to supernatant pH value be 6.5-7.0;

(5) dry, use Buchner funnel suction filtration, abandon suction filtration liquid, sample is put into 105 DEG C of baking ovens, 10 hours.

The present invention prepares active carbon taking fish scales such as carp, crucian, grass carps as material, adopts chemical method, and preparation technology is simple, and product yield is high, hole is flourishing, specific area is large, suction-operated is strong, can effectively remove noxious pollutant. It is lower that the present invention prepares active carbon cost with fish scale, and it is turned waste into wealth, significant for protection of the environment.

Four, detailed description of the invention

Embodiment 1

Fish scale is cleaned up with running water, at 105 DEG C, dry 6 hours, remove moisture, dry fish scale is cut into the long filiform of about 1mm with scissors. Then by impregnating ratio (phosphoric acid quality: fish scale quality) 1:1 impregnated sample, stir, fish scale silk is fully contacted with phosphoric acid, dip time is 10 hours. The sample having flooded is transferred to crucible, puts into Muffle furnace, carbonization 1 hour at 500 DEG C. To be cooled to approaching room temperature, then be washed till pH6.5-7 with running water, suction filtration, oven dry, make fish scale active carbon.

Embodiment 2

Fish scale is cleaned up with running water, at 105 DEG C, dry 6 hours, remove moisture, dry fish scale is cut into the long filiform of 1mm with scissors. Then by impregnating ratio (phosphoric acid quality: fish scale quality) 2.5:1 impregnated sample, stir, fish scale silk is fully contacted with phosphoric acid, dip time is 8 hours. The sample having flooded is transferred to crucible, puts into Muffle furnace, carbonization 1 hour at 700 DEG C. To be cooled to approaching room temperature, then be washed till pH6.5-7 with running water, suction filtration, oven dry, make fish scale active carbon.

Embodiment 3

Fish scale is cleaned up with running water, at 105 DEG C, dry 6 hours, remove moisture, dry fish scale is cut into the long filiform of 1mm with scissors. Then by impregnating ratio (phosphoric acid quality: fish scale quality) 2:1 impregnated sample, stir, fish scale silk is fully contacted with phosphoric acid, dip time is 12 hours. The sample having flooded is transferred to crucible, puts into Muffle furnace, carbonization 50 minutes at 700 DEG C. To be cooled to approaching room temperature, then be washed till pH6.5-7 with running water, suction filtration, oven dry, make fish scale active carbon.

Claims

1. prepare a method for activated carbon with fish scale, it is characterized in that with fish scale, as the raw material of preparing active carbon, taking phosphoric acid as activator, its preparation technology is as follows:

(2) dipping, presses certain impregnating ratio, i.e. fish scale quality by load weighted fish scale silk and a certain amount of phosphoric acid: phosphoric acid quality is 1:0.5-3.0, mixes dipping 6-12 hour;