CN109202065A - A kind of preparation method of gold nano particle modification silver nanowires - Google Patents
A kind of preparation method of gold nano particle modification silver nanowires Download PDFInfo
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- CN109202065A CN109202065A CN201811450897.2A CN201811450897A CN109202065A CN 109202065 A CN109202065 A CN 109202065A CN 201811450897 A CN201811450897 A CN 201811450897A CN 109202065 A CN109202065 A CN 109202065A
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Abstract
A kind of preparation method of gold nano particle modification silver nanowires, the present invention relates to field of nano material preparation.The invention solves the technical problems that existing one-dimensional silver nanowires electric conductivity is not good enough and translucency is weak.Method: one, silver nanowires surfactant is removed；Two, diluted suspension liquid；Three, gold nano particle modification silver nanowires.The silver nanowires of gold nano particle modification prepared by the present invention has good dispersibility, and gold nano grain is evenly distributed, size uniformity.The present invention is used to prepare gold nano particle modification silver nanowires.
Description
Technical field
The present invention relates to field of nano material preparation.
Background technique
It is special that noble metal nanometer material has a series of unique physics, chemistry and structure because of its biggish specific surface area
Property, it is of crucial importance in fields such as photoelectricity, collection of energy, catalysis and bio-sensings.Noble metal nanometer material simultaneously
It is also found to have the function of Surface enhanced Raman scattering, also there is splendid conduction and thermal conductivity particularly with silver nanowires
Energy.It is concentrated mainly at present about the preparation of metal nanometer line through the control to forming core and growth course, to be had
Specific shape, the nano material of size (nano particle, nano wire).
Combination between different nano materials is concentrated mainly between the zero dimensions material such as core-shell structure, less consideration is different
The combination of heterogeneous nano material is tieed up, is concentrated mainly on one with the metal nano material for being frequently used for preparing flexible transparent conductive film
Tie up silver nanowires, this kind of material fail sufficiently and reasonably to cause using space the transparency of material and electric conductivity still have compared with
Big limitation.
Summary of the invention
The invention solves the technical problems that existing one-dimensional silver nanowires electric conductivity is not good enough and translucency is weak, and provide
A kind of preparation method of gold nano particle modification silver nanowires.
A kind of preparation method of gold nano particle modification silver nanowires, specifically sequentially includes the following steps:
One, silver nanowires is taken, silver nanowires is subjected to centrifuge washing, surfactant is removed, is subsequently dispersed anhydrous second
In alcohol, suspension is obtained；
Two, the suspension for obtaining step 1 carries out 10~15min of ultrasonic disperse, then using dehydrated alcohol that volume is dilute
Ten times are released, then carries out 5~15min of dispersion under ultrasound condition, obtains diluted suspension liquid；
Three, by HAuCl4·3H2O solution is added in the diluted suspension liquid that step 2 obtains, and is then transferred in ultrasound condition
15~30min is set, sodium borohydride solution is added, 30~60min is stood, obtains the gold nano particle modification silver nanowires.
The silver nanowires used in step 1 is purchased in upper marine green wood Co., Ltd；
HAuCl in step 34·3H2O solution is Macklin brand, Au wt.%=50%；
The present invention before operation, need to clean vessel, under conditions of ultrasonic power is 60W-100W, will fill steaming
The vessel such as reaction flask, the volumetric flask of distilled water clean 10-30min, then impregnate 1-6h with the chloroazotic acid newly prepared, finally respectively with distillation
Water, ethyl alcohol clean 10-20 times repeatedly, are dried for standby.
The present invention can be applied to it in the method for silver nanowires surface growth gold nano grain using gold chloride as Jin Yuan
His noble metal nano particles, including gold but it is not limited to golden (such as Pt, Ir).
The beneficial effects of the present invention are:
Present invention employs the heterogeneous different wiener rice that a kind of method of simplicity is prepared for gold nano particle modification silver nanowires
Material, this method use solvent-thermal method, easy to operate, simple process.The silver nanowires of the gold nano particle modification of preparation, has
Good dispersibility, gold nano grain are evenly distributed, size uniformity.The present invention prepares the Yin Na of gold nano particle modification after tested
The electric property of rice noodles reaches 15~30 Ω/SQ, and translucency reaches 80~90%.This kind of method provides for the preparation of nano material
New thinking, promotes the research of associated materials and widening for application field.
The present invention is used to prepare gold nano particle modification silver nanowires.
Detailed description of the invention
Fig. 1 is the uv absorption spectra of gold nano particle modification silver nanowires prepared by silver nanowires and embodiment one
Figure；
Fig. 2 is the transmission electron microscope picture of silver nanowires；
Fig. 3 is the transmission electron microscope picture of gold nano particle modification silver nanowires prepared by embodiment one.
Specific embodiment
Technical solution of the present invention is not limited to the specific embodiment of act set forth below, further include each specific embodiment it
Between any combination.
Specific embodiment 1: a kind of preparation method of gold nano particle modification silver nanowires, specifically according to the following steps into
Row:
One, silver nanowires is taken, silver nanowires is subjected to centrifuge washing, surfactant is removed, is subsequently dispersed anhydrous second
In alcohol, suspension is obtained；
Two, the suspension for obtaining step 1 carries out 10~15min of ultrasonic disperse, then using dehydrated alcohol that volume is dilute
Ten times are released, then carries out 5~15min of dispersion under ultrasound condition, obtains diluted suspension liquid；
Three, by HAuCl4·3H2O solution is added in the diluted suspension liquid that step 2 obtains, and is then transferred in ultrasound condition
15~30min is set, sodium borohydride solution is added, 30~60min is stood, obtains the gold nano particle modification silver nanowires.
Surfactant component is mainly PVP in step 1.
Present embodiment before operation, need to clean vessel, under conditions of ultrasonic power is 60W-100W, will contain
There are the vessel such as reaction flask, the volumetric flask of distilled water to clean 10-30min, then impregnate 1-6h with the chloroazotic acid newly prepared, finally uses respectively
Distilled water, ethyl alcohol clean 10-20 times repeatedly, are dried for standby.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: silver nanowires in step 1
Diameter is 30nm, draw ratio 1000.It is other same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: nothing is used in step 1
Water-ethanol carries out centrifuge washing, centrifuge washing 5-10 times.It is other the same as one or two specific embodiments.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three: step 1 suspends
Silver nanowires concentration is 10mg/mL in liquid.It is other identical as one of specific embodiment one to three.
Specific embodiment 5: unlike one of present embodiment and specific embodiment one to four: surpassing in step 2
Acoustical power is 60~80W.It is other identical as one of specific embodiment one to four.
Specific embodiment 6: unlike one of present embodiment and specific embodiment one to five: in step 3
HAuCl4·3H2The concentration of O solution is 10mg/mL, HAuCl4·3H2The volume ratio of O solution and diluted suspension liquid is 1: 10.Its
It is identical as one of specific embodiment one to five.
Specific embodiment 7: unlike one of present embodiment and specific embodiment one to six: surpassing in step 3
Acoustical power is 50W~80W.It is other identical as one of specific embodiment one to six.
Specific embodiment 8: unlike one of present embodiment and specific embodiment one to seven: surpassing in step 3
Acoustical power is 60W.It is other identical as one of specific embodiment one to seven.
Specific embodiment 9: unlike one of present embodiment and specific embodiment one to eight: boron in step 3
The concentration of sodium hydride solution is 25 μm of ol/mL, and the volume ratio of sodium borohydride solution and diluted suspension liquid is 1: 10.It is other with it is specific
One of embodiment one to eight is identical.
Specific embodiment 10: unlike one of present embodiment and specific embodiment one to nine: anti-in step 3
Answering temperature is 60 DEG C.It is other identical as one of specific embodiment one to nine.
Beneficial effects of the present invention are verified using following embodiment:
Embodiment one:
A kind of preparation method of gold nano particle modification silver nanowires of the present embodiment, specifically sequentially includes the following steps:
One, silver nanowires is taken, silver nanowires is carried out centrifuge washing 5 times using dehydrated alcohol, removes surfactant, so
After be distributed in dehydrated alcohol, obtain concentration be 10mg/mL suspension；Wherein the diameter of silver nanowires is 30nm, and draw ratio is
1000；
Two, the suspension for obtaining step 1 carries out ultrasonic disperse 15min, and ultrasonic power is 60W, then takes 1mL outstanding
Supernatant liquid is diluted to 10mL using dehydrated alcohol, then dispersion 15min is carried out under ultrasound condition, and ultrasonic power is 60W, is obtained dilute
Release suspension；
Three, the HAuCl for being 10mg/mL by 1mL concentration4·3H2O solution is added in the diluted suspension liquid that step 2 obtains,
Then 30min is placed under ultrasound condition, ultrasonic power is 50W, and adding 1mL concentration is that 25 μm of ol/mL sodium borohydrides are molten
Liquid stands 60min, obtains the gold nano particle modification silver nanowires.
The silver nanowires used in step 1 is purchased in upper marine green wood Co., Ltd；
HAuCl in step 34·3H2O solution is Macklin brand, Au wt.%=50%；
The present embodiment before operation, need to clean vessel, under conditions of ultrasonic power is 60W-100W, by vessel
30min is cleaned, then impregnates 2h with the chloroazotic acid newly prepared, is finally cleaned 10 times, is dried for standby repeatedly with distilled water, ethyl alcohol respectively.
The electric property that the present embodiment prepares the silver nanowires of gold nano particle modification after tested reaches 15~30 Ω/SQ,
Translucency reaches 80~90%.
Fig. 1 is the UV Absorption of the silver nanowires purchased and gold nano particle modification silver nanowires manufactured in the present embodiment
Spectrogram.
Fig. 2 is the transmission electron microscope picture of silver nanowires；
Fig. 3 is the transmission electron microscope picture of gold nano particle modification silver nanowires manufactured in the present embodiment.
From figure 1 it appears that the growth with gold nano grain on silver nanowires surface, UV Absorption peak occurs red
It moves, and goes out not occurring gold nano grain individual absorption frequency range near 500nm, show that the gold nano grain to be formed is mainly formed in
Silver nanowires surface, and show that gold nano grain is uniform in the distribution density on silver nanowires surface from transmission plot, size is equal
One.
Claims (10)
1. a kind of preparation method of gold nano particle modification silver nanowires, it is characterised in that this method specifically according to the following steps into
Row:
One, silver nanowires is taken, silver nanowires is subjected to centrifuge washing, surfactant is removed, is subsequently dispersed in dehydrated alcohol,
Obtain suspension；
Two, the suspension for obtaining step 1 carries out 10~15min of ultrasonic disperse, then uses dehydrated alcohol by volume dilution ten
Times, then 5~15min of dispersion is carried out under ultrasound condition, obtain diluted suspension liquid；
Three, by HAuCl4·3H2O solution is added in the diluted suspension liquid that step 2 obtains, and then places 15 under ultrasound condition
~30min adds sodium borohydride solution, stands 30~60min, obtains the gold nano particle modification silver nanowires.
2. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
The diameter of silver nanowires is 30nm, draw ratio 1000 in one.
3. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
Centrifuge washing, centrifuge washing 5-10 times are carried out using dehydrated alcohol in one.
4. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
Silver nanowires concentration is 10mg/mL in one suspension.
5. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
Ultrasonic power is 60~80W in two.
6. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
HAuCl in three4·3H2The concentration of O solution is 10mg/mL, HAuCl4·3H2The volume ratio of O solution and diluted suspension liquid is 1:
10。
7. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
Ultrasonic power is 50W~80W in three.
8. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
Ultrasonic power is 60W in three.
9. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
The concentration of sodium borohydride solution is 25 μm of ol/mL in three, and the volume ratio of sodium borohydride solution and diluted suspension liquid is 1: 10.
10. a kind of preparation method of gold nano particle modification silver nanowires according to claim 1, it is characterised in that step
Reaction temperature is 60 DEG C in three.
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Citations (7)
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| US20160189823A1 (en) * | 2013-05-31 | 2016-06-30 | Basf Corporation | Nanostructure Dispersions And Transparent Conductors |
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2018
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| CN102642809A (en) * | 2012-04-27 | 2012-08-22 | 中国科学院理化技术研究所 | Organic nanowire/metal nano particle composite nano material and preparation method thereof |
| US20140313562A1 (en) * | 2013-04-19 | 2014-10-23 | Board Of Regents, The University Of Texas System | Graphene/metal nanowire hybrid transparent conductive films |
| US20160189823A1 (en) * | 2013-05-31 | 2016-06-30 | Basf Corporation | Nanostructure Dispersions And Transparent Conductors |
| CN105675688A (en) * | 2015-11-04 | 2016-06-15 | 东莞理工学院 | Preparation method and application of nano-wire/nano-particle modified electrode |
| CN105259157A (en) * | 2015-11-06 | 2016-01-20 | 合肥学院 | Surface-enhanced Raman scattering base with visible hot spots, preparation method and method for detecting molecules through base |
| CN105810833A (en) * | 2016-03-24 | 2016-07-27 | 浙江零维光伏科技有限公司 | Preparation method for front electrode of organic thin film solar cell |
| US9975178B2 (en) * | 2016-07-15 | 2018-05-22 | Lawrence Livermore National Security, Llc | Cross-phase separation of nanowires and nanoparticles |
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| Title |
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| QISU ECT: "Fabrication of enhanced silver nanowire films via self-assembled gold nanoparticles without post-treatment", 《MATERIALS LETTERS》 * |
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