CN107827195A - A kind of method of absorption method photocatalytic degradation method Combined Treatment organic dye waste water - Google Patents

A kind of method of absorption method photocatalytic degradation method Combined Treatment organic dye waste water Download PDF

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CN107827195A
CN107827195A CN201711040915.5A CN201711040915A CN107827195A CN 107827195 A CN107827195 A CN 107827195A CN 201711040915 A CN201711040915 A CN 201711040915A CN 107827195 A CN107827195 A CN 107827195A
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waste water
organic dye
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dye waste
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陈东进
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Dongguan Lianzhou Intellectual Property Operation and Management Co Ltd
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    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
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    • B01J35/00Catalysts, in general, characterised by their form or physical properties
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract

The invention discloses a kind of method of absorption method photocatalytic degradation method Combined Treatment organic dye waste water, graphite oxide/porous carbon ball compound adsorbent is prepared first;Then Cu is prepared2O/ graphenes/α Fe2O3Nano-tube array compound;Finally organic dye waste water is removed the gred through grid after just precipitating, supernatant is pumped into the adsorption treatment pond equipped with compound adsorbent, stirring and adsorbing handles 1 3h at 30 DEG C, then staticly settles, the supernatant after precipitation is pumped into reactor;Cu obtained above is added into reactor2O/ graphenes/α Fe2O3Nano-tube array compound is pumped into air as catalyst, the 16h of degradation treatment 10 under illumination condition, then the 6h of stir process 4 in the dark state, finally staticly settles, supernatant reaches discharge standard.Method percent of decolourization disclosed by the invention is high, and COD clearances are high, and cost is low.

Description

A kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water
Technical field:
The present invention relates to Organic Dyestuff Wastewater Treatment field, is specifically related to a kind of absorption method-photocatalytic degradation method joint The method for handling organic dye waste water.
Background technology:
Dyestuff is a kind of important fine chemical product, closely related with the clothing, food, lodging and transportion -- basic necessities of life of the mankind.With dye industry Fast development, it produces waste water has turned into one of current most important pollution source of water body.Because dye species are various, production work Skill, dyeing are different, and caused wastewater flow rate and composition also vary, but water quality characteristic shows as high concentration, height Colourity, high COD and BOD values, so its Treatment process is always the difficult point of Industrial Wastewater Treatment.Processing method bag main at present Physical, chemical method, bioanalysis, physical-chemical process are included, usually various methods are used in combination in actual treatment method could more The good harmful substance removed in waste water.
The content of the invention:
It is an object of the invention to provide a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water, This method can effectively handle the harmful substance in waste water, and percent of decolourization is high, low to water body non-secondary pollution, processing cost.
To achieve the above object, the present invention uses following technical scheme:
A kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water, comprises the following steps:
(1) weigh graphite oxide to be added in deionized water, be ultrasonically treated 1h under 500W power, obtain graphite oxide and disperse Liquid;
(2) porous carbon ball is placed in the ethanol solution of cetyl trimethylammonium bromide, stirred at 30-40 DEG C 30-70min is handled, after processing terminates, filtering, obtained solid vacuum drying, pretreatment porous carbon ball is made;
(3) graphite oxide dispersion obtained above and pretreatment porous carbon ball are mixed and be transferred in three-necked flask, delayed Slow to be warming up to 80-90 DEG C, reflow treatment 5h under 3000rpm, processing is cooled to room temperature after terminating, centrifugal treating is heavy after centrifugation Shallow lake drying, obtains compound adsorbent;
(4) high-purity iron plate is polished, then cleaned successively in absolute ethyl alcohol and distilled water, dried, it is standby;With above-mentioned place High-purity iron plate after reason is negative electrode as anode, platinized platinum, and the ethylene glycol solution of fluoride and deionized water enters as electrolyte Row first time anodic oxidation, then anode is placed in deionized water and is ultrasonically treated removal nanoporous oxide layer;Then proceed to Second of anodic oxidation reactions, anode is cleaned in deionized water afterwards, dry, be placed in Muffle furnace, the processing of oxygen atmosphere, Cool to room temperature after end with the furnace, α-Fe are made2O3Nano-tube array;Wherein, first time anodic oxidation and second of anodic oxidation Condition be 30-60V, 10-25 DEG C, oxidization time 1-10min;The condition handled in Muffle furnace is:200-500 DEG C, place Manage time 1-2.5h;
(5) with α-Fe obtained above2O3Nano-tube array is working electrode, and platinized platinum is to be to electrode, saturated calomel electrode Reference electrode, three-electrode electro Chemical system is formed, in graphene oxide dispersion, is deposited with cyclic voltammetry and reduces graphite Alkene lamella is to α-Fe2O3In nano-tube array substrate, it is washed with deionized after terminating, nitrogen drying, obtained graphene/α- Fe2O3Nano-tube array;Wherein, the condition of cyclic voltammetry deposition is -1.5~1.0V, sweep speed 30-60mV/a, The scanning deposition number of turns is enclosed for 2-20;
(6) with graphene obtained above/α-Fe2O3Nano-tube array substrate is working electrode, and platinized platinum is to electrode, is satisfied It is reference electrode with calomel electrode, forms three-electrode electro Chemical system, containing 1- ethyl-3-methylimidazole ethyl sulfonates Copper salt solution in, with constant voltage method deposit Cu2O nano particles are to graphene/α-Fe2O3Nano-tube array substrate surface, sink It is washed with deionized after the completion of product, nitrogen drying, Cu is made2O/ graphenes/α-Fe2O3Nano-tube array compound;Wherein, The condition of constant voltage method deposition is:- 0.15~-0.3V, sedimentation time 500-4000s;
(7) organic dye waste water is removed the gred through grid after just precipitating, supernatant is pumped into equipped with compound adsorbent In adsorption treatment pond, stirring and adsorbing handles 1-3h at 30 DEG C, then staticly settles, the supernatant after precipitation is pumped into reactor In;
(8) Cu obtained above is added into reactor2O/ graphenes/α-Fe2O3Nano-tube array compound is as catalysis Agent, and be pumped into air, the degradation treatment 10-16h under illumination condition, then stir process 4-6h in the dark state, last quiet Precipitation is put, supernatant reaches discharge standard.
As the preferred of above-mentioned technical proposal, in step (1), the concentration of the graphite oxide dispersion is 0.5- 1.5mol/L。
As the preferred of above-mentioned technical proposal, in step (2), the porous carbon ball and cetyl trimethylammonium bromide Mass ratio is 1:(0.001-0.005).
As the preferred of above-mentioned technical proposal, in step (3), graphite oxide dispersion, the quality for pre-processing porous carbon ball Than for (15-33):5.
As the preferred of above-mentioned technical proposal, in step (4), the fluoride is in ammonium fluoride, sodium fluoride, potassium fluoride One or more mixing.
As the preferred of above-mentioned technical proposal, described in step (4) in electrolyte, the mass concentration of fluoride is 0.1- 0.4wt%, the volume fraction of deionized water is 0.5-4%.
As the preferred of above-mentioned technical proposal, in step (5), the concentration of the graphene oxide dispersion is 0.25- 2.0mg/ml。
As the preferred of above-mentioned technical proposal, in step (6), the mantoquita is copper sulphate, copper nitrate, copper chloride, acetic acid One or more of mixing of copper;The concentration of copper salt solution is 0.005-0.04mol/L, wherein being 0.05- containing volume fraction 0.4% 1- ethyl-3-methylimidazole ethyl sulfonates.
As the preferred of above-mentioned technical proposal, in step (7), the dosage of the compound adsorbent is 0.5-3.5g/L.
As the preferred of above-mentioned technical proposal, in step (8), the dosage of the catalyst is 1-3g/L.
The invention has the advantages that:
The present invention prepares graphite oxide dispersion, dispersion liquid using supersound process first during preparing compound adsorbent Middle graphite oxide is separated into relatively thin sheet distribution;Then it is of the invention by porous carbon ball cetyl trimethylammonium bromide Ethanol solution processing, it is mixed with graphite oxide dispersion and handled at a certain temperature, the graphite oxide of sheet Can effectively coated porous carbon ball, obtained compound adsorbent stability is good, and adsorption capacity is strong;
On the other hand, specific surface area of catalyst produced by the present invention is big, has good visible light-responded characteristic;And it can promote The separation of entering light electron-hole pair, there is stronger redox ability;And the cost of material of catalyst produced by the present invention Cheap, rich reserves, method is simple, and catalytic activity is high.
The present invention handles organic dye waste water using absorption method-photocatalytic degradation method, and effect is more preferable, and percent of decolourization is up to 100%, the clearance of total organic carbon is up to more than 95.5%.
Embodiment:
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving The present invention is released, any restriction will not be formed to the present invention.
Embodiment 1
A kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water, comprises the following steps:
(1) weigh graphite oxide to be added in deionized water, be ultrasonically treated 1h under 500W power, obtain graphite oxide and disperse Liquid;Wherein, the concentration of the graphite oxide dispersion is 0.5mol/L;
(2) porous carbon ball is placed in the ethanol solution of cetyl trimethylammonium bromide, stirred at 30-40 DEG C 30min is handled, after processing terminates, filtering, obtained solid vacuum drying, pretreatment porous carbon ball is made;Wherein, it is described porous The mass ratio of carbon ball and cetyl trimethylammonium bromide is 1:0.001;
(3) graphite oxide dispersion obtained above and pretreatment porous carbon ball are mixed and be transferred in three-necked flask, delayed Slow to be warming up to 80-90 DEG C, reflow treatment 5h under 3000rpm, processing is cooled to room temperature after terminating, centrifugal treating is heavy after centrifugation Shallow lake drying, obtains compound adsorbent;Wherein, graphite oxide dispersion, the mass ratio of pretreatment porous carbon ball are 15:5;
(4) high-purity iron plate is polished, then cleaned successively in absolute ethyl alcohol and distilled water, dried, it is standby;With above-mentioned place High-purity iron plate after reason is negative electrode as anode, platinized platinum, and the ethylene glycol solution of fluoride and deionized water enters as electrolyte Row first time anodic oxidation, then anode is placed in deionized water and is ultrasonically treated removal nanoporous oxide layer;Then proceed to Second of anodic oxidation reactions, anode is cleaned in deionized water afterwards, dry, be placed in Muffle furnace, the processing of oxygen atmosphere, Cool to room temperature after end with the furnace, α-Fe are made2O3Nano-tube array;Wherein, first time anodic oxidation and second of anodic oxidation Condition be 30-60V, 10-25 DEG C, oxidization time 3min;The condition handled in Muffle furnace is:200 DEG C, processing time 1.5h;Wherein, the fluoride is ammonium fluoride;In the electrolyte, the mass concentration of fluoride is 0.15wt%, deionized water Volume fraction be 1%;
(5) with α-Fe obtained above2O3Nano-tube array is working electrode, and platinized platinum is to be to electrode, saturated calomel electrode Reference electrode, three-electrode electro Chemical system is formed, in graphene oxide dispersion, is deposited with cyclic voltammetry and reduces graphite Alkene lamella is to α-Fe2O3In nano-tube array substrate, it is washed with deionized after terminating, nitrogen drying, obtained graphene/α- Fe2O3Nano-tube array;Wherein, the condition of cyclic voltammetry deposition is -1.5~1.0V, sweep speed 30-60mV/a, The scanning deposition number of turns is enclosed for 2-20;Wherein, the concentration of the graphene oxide dispersion is 0.3mg/ml;
(6) with graphene obtained above/α-Fe2O3Nano-tube array substrate is working electrode, and platinized platinum is to electrode, is satisfied It is reference electrode with calomel electrode, forms three-electrode electro Chemical system, containing 1- ethyl-3-methylimidazole ethyl sulfonates Copper salt solution in, with constant voltage method deposit Cu2O nano particles are to graphene/α-Fe2O3Nano-tube array substrate surface, sink It is washed with deionized after the completion of product, nitrogen drying, Cu is made2O/ graphenes/α-Fe2O3Nano-tube array compound;Wherein, The condition of constant voltage method deposition is:- 0.15~-0.3V, sedimentation time 500s;Wherein, the mantoquita is copper sulphate;Mantoquita The concentration of the aqueous solution is 0.005mol/L, wherein containing the 1- ethyl-3-methylimidazole second that volume fraction is 0.05-0.4% Base sulfonate;
(7) organic dye waste water is removed the gred through grid after just precipitating, supernatant is pumped into equipped with compound adsorbent In adsorption treatment pond, stirring and adsorbing handles 1h at 30 DEG C, then staticly settles, the supernatant after precipitation is pumped into reactor; Wherein, the dosage of the compound adsorbent is 0.5g/L;
(8) Cu obtained above is added into reactor2O/ graphenes/α-Fe2O3Nano-tube array compound is as catalysis Agent, and be pumped into air, the degradation treatment 10h under illumination condition, then stir process 4h in the dark state, it is heavy finally to stand Form sediment, supernatant reaches discharge standard;Wherein, the dosage of the catalyst is 1g/L.
Embodiment 2
A kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water, comprises the following steps:
(1) weigh graphite oxide to be added in deionized water, be ultrasonically treated 1h under 500W power, obtain graphite oxide and disperse Liquid;Wherein, the concentration of the graphite oxide dispersion is 1.5mol/L;
(2) porous carbon ball is placed in the ethanol solution of cetyl trimethylammonium bromide, stirred at 30-40 DEG C 70min is handled, after processing terminates, filtering, obtained solid vacuum drying, pretreatment porous carbon ball is made;Wherein, it is described porous The mass ratio of carbon ball and cetyl trimethylammonium bromide is 1:0.005;
(3) graphite oxide dispersion obtained above and pretreatment porous carbon ball are mixed and be transferred in three-necked flask, delayed Slow to be warming up to 80-90 DEG C, reflow treatment 5h under 3000rpm, processing is cooled to room temperature after terminating, centrifugal treating is heavy after centrifugation Shallow lake drying, obtains compound adsorbent;Wherein, graphite oxide dispersion, the mass ratio of pretreatment porous carbon ball are 33:5;
(4) high-purity iron plate is polished, then cleaned successively in absolute ethyl alcohol and distilled water, dried, it is standby;With above-mentioned place High-purity iron plate after reason is negative electrode as anode, platinized platinum, and the ethylene glycol solution of fluoride and deionized water enters as electrolyte Row first time anodic oxidation, then anode is placed in deionized water and is ultrasonically treated removal nanoporous oxide layer;Then proceed to Second of anodic oxidation reactions, anode is cleaned in deionized water afterwards, dry, be placed in Muffle furnace, the processing of oxygen atmosphere, Cool to room temperature after end with the furnace, α-Fe are made2O3Nano-tube array;Wherein, first time anodic oxidation and second of anodic oxidation Condition be 30-60V, 10-25 DEG C, oxidization time 5min;The condition handled in Muffle furnace is:500 DEG C, processing time 1h;Wherein, the fluoride is sodium fluoride;In the electrolyte, the mass concentration of fluoride is 0.25wt%, deionized water Volume fraction is 1%;
(5) with α-Fe obtained above2O3Nano-tube array is working electrode, and platinized platinum is to be to electrode, saturated calomel electrode Reference electrode, three-electrode electro Chemical system is formed, in graphene oxide dispersion, is deposited with cyclic voltammetry and reduces graphite Alkene lamella is to α-Fe2O3In nano-tube array substrate, it is washed with deionized after terminating, nitrogen drying, obtained graphene/α- Fe2O3Nano-tube array;Wherein, the condition of cyclic voltammetry deposition is -1.5~1.0V, sweep speed 30-60mV/a, The scanning deposition number of turns is enclosed for 2-20;Wherein, the concentration of the graphene oxide dispersion is 0.35mg/ml;
(6) with graphene obtained above/α-Fe2O3Nano-tube array substrate is working electrode, and platinized platinum is to electrode, is satisfied It is reference electrode with calomel electrode, forms three-electrode electro Chemical system, containing 1- ethyl-3-methylimidazole ethyl sulfonates Copper salt solution in, with constant voltage method deposit Cu2O nano particles are to graphene/α-Fe2O3Nano-tube array substrate surface, sink It is washed with deionized after the completion of product, nitrogen drying, Cu is made2O/ graphenes/α-Fe2O3Nano-tube array compound;Wherein, The condition of constant voltage method deposition is:- 0.15~-0.3V, sedimentation time 4000s;Wherein, the mantoquita is copper acetate;Copper The concentration of saline solution is 0.04mol/L, wherein containing the 1- ethyl-3-methylimidazole second that volume fraction is 0.05-0.4% Base sulfonate;
(7) organic dye waste water is removed the gred through grid after just precipitating, supernatant is pumped into equipped with compound adsorbent In adsorption treatment pond, stirring and adsorbing handles 3h at 30 DEG C, then staticly settles, the supernatant after precipitation is pumped into reactor; Wherein, the dosage of the compound adsorbent is 3.5g/L;
(8) Cu obtained above is added into reactor2O/ graphenes/α-Fe2O3Nano-tube array compound is as catalysis Agent, and be pumped into air, the degradation treatment 16h under illumination condition, then stir process 6h in the dark state, it is heavy finally to stand Form sediment, supernatant reaches discharge standard;Wherein, the dosage of the catalyst is 3g/L.
Embodiment 3
A kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water, comprises the following steps:
(1) weigh graphite oxide to be added in deionized water, be ultrasonically treated 1h under 500W power, obtain graphite oxide and disperse Liquid;Wherein, the concentration of the graphite oxide dispersion is 1.0mol/L;
(2) porous carbon ball is placed in the ethanol solution of cetyl trimethylammonium bromide, stirred at 30-40 DEG C 40min is handled, after processing terminates, filtering, obtained solid vacuum drying, pretreatment porous carbon ball is made;Wherein, it is described porous The mass ratio of carbon ball and cetyl trimethylammonium bromide is 1:0.002;
(3) graphite oxide dispersion obtained above and pretreatment porous carbon ball are mixed and be transferred in three-necked flask, delayed Slow to be warming up to 80-90 DEG C, reflow treatment 5h under 3000rpm, processing is cooled to room temperature after terminating, centrifugal treating is heavy after centrifugation Shallow lake drying, obtains compound adsorbent;Wherein, graphite oxide dispersion, the mass ratio of pretreatment porous carbon ball are 20:5;
(4) high-purity iron plate is polished, then cleaned successively in absolute ethyl alcohol and distilled water, dried, it is standby;With above-mentioned place High-purity iron plate after reason is negative electrode as anode, platinized platinum, and the ethylene glycol solution of fluoride and deionized water enters as electrolyte Row first time anodic oxidation, then anode is placed in deionized water and is ultrasonically treated removal nanoporous oxide layer;Then proceed to Second of anodic oxidation reactions, anode is cleaned in deionized water afterwards, dry, be placed in Muffle furnace, the processing of oxygen atmosphere, Cool to room temperature after end with the furnace, α-Fe are made2O3Nano-tube array;Wherein, first time anodic oxidation and second of anodic oxidation Condition be 30-60V, 10-25 DEG C, oxidization time 5min;The condition handled in Muffle furnace is:230 DEG C, processing time 1.5h;Wherein, the fluoride is potassium fluoride;In the electrolyte, the mass concentration of fluoride is 0.25wt%, deionized water Volume fraction be 2.5%;
(5) with α-Fe obtained above2O3Nano-tube array is working electrode, and platinized platinum is to be to electrode, saturated calomel electrode Reference electrode, three-electrode electro Chemical system is formed, in graphene oxide dispersion, is deposited with cyclic voltammetry and reduces graphite Alkene lamella is to α-Fe2O3In nano-tube array substrate, it is washed with deionized after terminating, nitrogen drying, obtained graphene/α- Fe2O3Nano-tube array;Wherein, the condition of cyclic voltammetry deposition is -1.5~1.0V, sweep speed 30-60mV/a, The scanning deposition number of turns is enclosed for 2-20;Wherein, the concentration of the graphene oxide dispersion is 0.5mg/ml;
(6) with graphene obtained above/α-Fe2O3Nano-tube array substrate is working electrode, and platinized platinum is to electrode, is satisfied It is reference electrode with calomel electrode, forms three-electrode electro Chemical system, containing 1- ethyl-3-methylimidazole ethyl sulfonates Copper salt solution in, with constant voltage method deposit Cu2O nano particles are to graphene/α-Fe2O3Nano-tube array substrate surface, sink It is washed with deionized after the completion of product, nitrogen drying, Cu is made2O/ graphenes/α-Fe2O3Nano-tube array compound;Wherein, The condition of constant voltage method deposition is:- 0.15~-0.3V, sedimentation time 1000s;Wherein, the mantoquita is copper sulphate;Copper The concentration of saline solution is 0.01mol/L, wherein containing the 1- ethyl-3-methylimidazole second that volume fraction is 0.05-0.4% Base sulfonate;
(7) organic dye waste water is removed the gred through grid after just precipitating, supernatant is pumped into equipped with compound adsorbent In adsorption treatment pond, stirring and adsorbing handles 1.5h at 30 DEG C, then staticly settles, the supernatant after precipitation is pumped into reactor In;Wherein, the dosage of the compound adsorbent is 1g/L;
(8) Cu obtained above is added into reactor2O/ graphenes/α-Fe2O3Nano-tube array compound is as catalysis Agent, and be pumped into air, the degradation treatment 11h under illumination condition, then stir process 4.5h in the dark state, it is heavy finally to stand Form sediment, supernatant reaches discharge standard;Wherein, the dosage of the catalyst is 1.5g/L.
Embodiment 4
A kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water, comprises the following steps:
(1) weigh graphite oxide to be added in deionized water, be ultrasonically treated 1h under 500W power, obtain graphite oxide and disperse Liquid;Wherein, the concentration of the graphite oxide dispersion is 1.1mol/L;
(2) porous carbon ball is placed in the ethanol solution of cetyl trimethylammonium bromide, stirred at 30-40 DEG C 50min is handled, after processing terminates, filtering, obtained solid vacuum drying, pretreatment porous carbon ball is made;Wherein, it is described porous The mass ratio of carbon ball and cetyl trimethylammonium bromide is 1:0.003;
(3) graphite oxide dispersion obtained above and pretreatment porous carbon ball are mixed and be transferred in three-necked flask, delayed Slow to be warming up to 80-90 DEG C, reflow treatment 5h under 3000rpm, processing is cooled to room temperature after terminating, centrifugal treating is heavy after centrifugation Shallow lake drying, obtains compound adsorbent;Wherein, graphite oxide dispersion, the mass ratio of pretreatment porous carbon ball are 21:5;
(4) high-purity iron plate is polished, then cleaned successively in absolute ethyl alcohol and distilled water, dried, it is standby;With above-mentioned place High-purity iron plate after reason is negative electrode as anode, platinized platinum, and the ethylene glycol solution of fluoride and deionized water enters as electrolyte Row first time anodic oxidation, then anode is placed in deionized water and is ultrasonically treated removal nanoporous oxide layer;Then proceed to Second of anodic oxidation reactions, anode is cleaned in deionized water afterwards, dry, be placed in Muffle furnace, the processing of oxygen atmosphere, Cool to room temperature after end with the furnace, α-Fe are made2O3Nano-tube array;Wherein, first time anodic oxidation and second of anodic oxidation Condition be 30-60V, 10-25 DEG C, oxidization time 6min;The condition handled in Muffle furnace is:260 DEG C, processing time 2h;Wherein, the fluoride is one or more of mixing in ammonium fluoride, sodium fluoride, potassium fluoride;In the electrolyte, fluorination The mass concentration of thing is 0.35wt%, and the volume fraction of deionized water is 3%;
(5) with α-Fe obtained above2O3Nano-tube array is working electrode, and platinized platinum is to be to electrode, saturated calomel electrode Reference electrode, three-electrode electro Chemical system is formed, in graphene oxide dispersion, is deposited with cyclic voltammetry and reduces graphite Alkene lamella is to α-Fe2O3In nano-tube array substrate, it is washed with deionized after terminating, nitrogen drying, obtained graphene/α- Fe2O3Nano-tube array;Wherein, the condition of cyclic voltammetry deposition is -1.5~1.0V, sweep speed 30-60mV/a, The scanning deposition number of turns is enclosed for 2-20;Wherein, the concentration of the graphene oxide dispersion is 1.0mg/ml;
(6) with graphene obtained above/α-Fe2O3Nano-tube array substrate is working electrode, and platinized platinum is to electrode, is satisfied It is reference electrode with calomel electrode, forms three-electrode electro Chemical system, containing 1- ethyl-3-methylimidazole ethyl sulfonates Copper salt solution in, with constant voltage method deposit Cu2O nano particles are to graphene/α-Fe2O3Nano-tube array substrate surface, sink It is washed with deionized after the completion of product, nitrogen drying, Cu is made2O/ graphenes/α-Fe2O3Nano-tube array compound;Wherein, The condition of constant voltage method deposition is:- 0.15~-0.3V, sedimentation time 2000s;Wherein, the mantoquita is copper sulphate, nitre One or more of mixing of sour copper, copper chloride, copper acetate;The concentration of copper salt solution is 0.02mol/L, wherein containing volume integral Number is 0.2% 1- ethyl-3-methylimidazole ethyl sulfonates;
(7) organic dye waste water is removed the gred through grid after just precipitating, supernatant is pumped into equipped with compound adsorbent In adsorption treatment pond, stirring and adsorbing handles 2h at 30 DEG C, then staticly settles, the supernatant after precipitation is pumped into reactor; Wherein, the dosage of the compound adsorbent is 1.5g/L;
(8) Cu obtained above is added into reactor2O/ graphenes/α-Fe2O3Nano-tube array compound is as catalysis Agent, and be pumped into air, the degradation treatment 13h under illumination condition, then stir process 5h in the dark state, it is heavy finally to stand Form sediment, supernatant reaches discharge standard;Wherein, the dosage of the catalyst is 2g/L.
Embodiment 5
A kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water, comprises the following steps:
(1) weigh graphite oxide to be added in deionized water, be ultrasonically treated 1h under 500W power, obtain graphite oxide and disperse Liquid;Wherein, the concentration of the graphite oxide dispersion is 1.3mol/L;
(2) porous carbon ball is placed in the ethanol solution of cetyl trimethylammonium bromide, stirred at 30-40 DEG C 60min is handled, after processing terminates, filtering, obtained solid vacuum drying, pretreatment porous carbon ball is made;Wherein, it is described porous The mass ratio of carbon ball and cetyl trimethylammonium bromide is 1:0.004;
(3) graphite oxide dispersion obtained above and pretreatment porous carbon ball are mixed and be transferred in three-necked flask, delayed Slow to be warming up to 80-90 DEG C, reflow treatment 5h under 3000rpm, processing is cooled to room temperature after terminating, centrifugal treating is heavy after centrifugation Shallow lake drying, obtains compound adsorbent;Wherein, graphite oxide dispersion, the mass ratio of pretreatment porous carbon ball are 31:5;
(4) high-purity iron plate is polished, then cleaned successively in absolute ethyl alcohol and distilled water, dried, it is standby;With above-mentioned place High-purity iron plate after reason is negative electrode as anode, platinized platinum, and the ethylene glycol solution of fluoride and deionized water enters as electrolyte Row first time anodic oxidation, then anode is placed in deionized water and is ultrasonically treated removal nanoporous oxide layer;Then proceed to Second of anodic oxidation reactions, anode is cleaned in deionized water afterwards, dry, be placed in Muffle furnace, the processing of oxygen atmosphere, Cool to room temperature after end with the furnace, α-Fe are made2O3Nano-tube array;Wherein, first time anodic oxidation and second of anodic oxidation Condition be 30-60V, 10-25 DEG C, oxidization time 7min;The condition handled in Muffle furnace is:400 DEG C, processing time 2h;Wherein, the fluoride is potassium fluoride;In the electrolyte, the mass concentration of fluoride is 0.35wt%, deionized water Volume fraction is 3.5%;
(5) with α-Fe obtained above2O3Nano-tube array is working electrode, and platinized platinum is to be to electrode, saturated calomel electrode Reference electrode, three-electrode electro Chemical system is formed, in graphene oxide dispersion, is deposited with cyclic voltammetry and reduces graphite Alkene lamella is to α-Fe2O3In nano-tube array substrate, it is washed with deionized after terminating, nitrogen drying, obtained graphene/α- Fe2O3Nano-tube array;Wherein, the condition of cyclic voltammetry deposition is -1.5~1.0V, sweep speed 30-60mV/a, The scanning deposition number of turns is enclosed for 2-20;Wherein, the concentration of the graphene oxide dispersion is 1.5mg/ml;
(6) with graphene obtained above/α-Fe2O3Nano-tube array substrate is working electrode, and platinized platinum is to electrode, is satisfied It is reference electrode with calomel electrode, forms three-electrode electro Chemical system, containing 1- ethyl-3-methylimidazole ethyl sulfonates Copper salt solution in, with constant voltage method deposit Cu2O nano particles are to graphene/α-Fe2O3Nano-tube array substrate surface, sink It is washed with deionized after the completion of product, nitrogen drying, Cu is made2O/ graphenes/α-Fe2O3Nano-tube array compound;Wherein, The condition of constant voltage method deposition is:- 0.15~-0.3V, sedimentation time 3000s;Wherein, the mantoquita is copper chloride;Copper The concentration of saline solution is 0.03mol/L, wherein containing the 1- ethyl-3-methylimidazole second that volume fraction is 0.05-0.4% Base sulfonate;
(7) organic dye waste water is removed the gred through grid after just precipitating, supernatant is pumped into equipped with compound adsorbent In adsorption treatment pond, stirring and adsorbing handles 2.5h at 30 DEG C, then staticly settles, the supernatant after precipitation is pumped into reactor In;Wherein, the dosage of the compound adsorbent is 3.3g/L;
(8) Cu obtained above is added into reactor2O/ graphenes/α-Fe2O3Nano-tube array compound is as catalysis Agent, and be pumped into air, the degradation treatment 15h under illumination condition, then stir process 5.5h in the dark state, it is heavy finally to stand Form sediment, supernatant reaches discharge standard;Wherein, the dosage of the catalyst is 2g/L.
The concentration for the organic dye waste water that the present invention is handled is 300-700mg/L, and the clearance of total organic carbon is 95.5% More than, percent of decolourization is up to 100%.

Claims (10)

1. the method for a kind of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water, it is characterised in that including following step Suddenly:
(1) weigh graphite oxide to be added in deionized water, be ultrasonically treated 1h under 500W power, obtain graphite oxide dispersion;
(2) porous carbon ball is placed in the ethanol solution of cetyl trimethylammonium bromide, the stir process at 30-40 DEG C 30-70min, after processing terminates, filtering, obtained solid vacuum drying, pretreatment porous carbon ball is made;
(3) graphite oxide dispersion obtained above and pretreatment porous carbon ball are mixed and be transferred in three-necked flask, slowly risen Temperature is to 80-90 DEG C, and reflow treatment 5h under 3000rpm, processing is cooled to room temperature, centrifugal treating after terminating, the precipitation after centrifugation is done It is dry, obtain compound adsorbent;
(4) high-purity iron plate is polished, then cleaned successively in absolute ethyl alcohol and distilled water, dried, it is standby;After above-mentioned processing High-purity iron plate as anode, platinized platinum be negative electrode, the ethylene glycol solution of fluoride and deionized water carries out the as electrolyte Anodic oxidation, then anode is placed in deionized water and is ultrasonically treated removal nanoporous oxide layer;Then proceed to second Secondary anodic oxidation reactionses, anode is cleaned in deionized water afterwards, dry, be placed in Muffle furnace, the processing of oxygen atmosphere, terminated After cool to room temperature with the furnace, α-Fe are made2O3Nano-tube array;Wherein, the bar of first time anodic oxidation and second of anodic oxidation Part is 30-60V, 10-25 DEG C, oxidization time 1-10min;The condition handled in Muffle furnace is:200-500 DEG C, during processing Between 1-2.5h;
(5) with α-Fe obtained above2O3Nano-tube array is working electrode, and platinized platinum is that saturated calomel electrode is reference to electrode Electrode, three-electrode electro Chemical system is formed, in graphene oxide dispersion, with cyclic voltammetry deposition and reduced graphene piece Layer arrives α-Fe2O3In nano-tube array substrate, it is washed with deionized after terminating, nitrogen drying, graphene/α-Fe is made2O3Receive Mitron array;Wherein, the condition of the cyclic voltammetry deposition is -1.5~1.0V, sweep speed 30-60mV/a, and scanning is heavy The product number of turns is enclosed for 2-20;
(6) with graphene obtained above/α-Fe2O3Nano-tube array substrate is working electrode, and platinized platinum is sweet to electrode, saturation Mercury electrode is reference electrode, three-electrode electro Chemical system is formed, in the copper containing 1- ethyl-3-methylimidazole ethyl sulfonates In saline solution, Cu is deposited with constant voltage method2O nano particles are to graphene/α-Fe2O3Nano-tube array substrate surface, has been deposited It is washed with deionized after, nitrogen drying, Cu is made2O/ graphenes/α-Fe2O3Nano-tube array compound;Wherein, it is described Constant voltage method deposition condition be:- 0.15~-0.3V, sedimentation time 500-4000s;
(7) organic dye waste water is removed the gred through grid after just precipitating, supernatant is pumped into the absorption equipped with compound adsorbent In processing pond, stirring and adsorbing handles 1-3h at 30 DEG C, then staticly settles, the supernatant after precipitation is pumped into reactor;
(8) Cu obtained above is added into reactor2O/ graphenes/α-Fe2O3Nano-tube array compound as catalyst, And air is pumped into, the degradation treatment 10-16h under illumination condition, then stir process 4-6h in the dark state, it is heavy finally to stand Form sediment, supernatant reaches discharge standard.
2. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, it is special Sign is:In step (1), the concentration of the graphite oxide dispersion is 0.5-1.5mol/L.
3. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, it is special Sign is:In step (2), the mass ratio of the porous carbon ball and cetyl trimethylammonium bromide is 1:(0.001-0.005).
4. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, it is special Sign is:In step (3), graphite oxide dispersion, the mass ratio of pretreatment porous carbon ball are (15-33):5.
5. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, it is special Sign is:In step (4), the fluoride is one or more of mixing in ammonium fluoride, sodium fluoride, potassium fluoride.
6. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, it is special Sign is:Described in step (4) in electrolyte, the mass concentration of fluoride is 0.1-0.4wt%, the volume fraction of deionized water For 0.5-4%.
7. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, it is special Sign is:In step (5), the concentration of the graphene oxide dispersion is 0.25-2.0mg/ml.
8. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, it is special Sign is:In step (6), the mantoquita is one or more of mixing of copper sulphate, copper nitrate, copper chloride, copper acetate;Mantoquita water The concentration of solution is 0.005-0.04mol/L, wherein containing the 1- ethyl-3-methylimidazoles that volume fraction is 0.05-0.4% Ethyl sulfonate.
9. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, it is special Sign is:In step (7), the dosage of the compound adsorbent is 0.5-3.5g/L.
10. a kind of method of absorption method-photocatalytic degradation method Combined Treatment organic dye waste water as claimed in claim 1, its It is characterised by:In step (8), the dosage of the catalyst is 1-3g/L.
CN201711040915.5A 2017-10-31 2017-10-31 A kind of method of absorption method photocatalytic degradation method Combined Treatment organic dye waste water Withdrawn CN107827195A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109250849A (en) * 2018-09-22 2019-01-22 福建凤竹纺织科技股份有限公司 A kind of processing method of textile waste
CN113651471A (en) * 2021-09-07 2021-11-16 福泉兴盛生物科技有限公司 Efficient treatment method for organic wastewater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109250849A (en) * 2018-09-22 2019-01-22 福建凤竹纺织科技股份有限公司 A kind of processing method of textile waste
CN109250849B (en) * 2018-09-22 2021-08-27 福建凤竹纺织科技股份有限公司 Treatment method of textile wastewater
CN113651471A (en) * 2021-09-07 2021-11-16 福泉兴盛生物科技有限公司 Efficient treatment method for organic wastewater

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