Metal Nanoparticles – InstaNANO https://instanano.com Nanotechnology at Instant Sat, 03 Dec 2022 17:59:22 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.3 https://instanano.com/wp-content/uploads/2022/04/cropped-Flaticon-32x32.png Metal Nanoparticles – InstaNANO https://instanano.com 32 32 Silver Nanocubes Synthesis by using Silver Nitrate, Polyvinylpyrrolidone and Ethylene glycol via Chemical Reduction Method https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanocubes-1/ https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanocubes-1/#comments Tue, 13 Sep 2022 10:26:14 +0000 https://instanano.com/?p=10700

Silver Nanocubes Synthesis by using Silver Nitrate as Precursor, Polyvinylpyrrolidone (PVP M.W.:40,000) as Stabilising Agent and Ethylene glycol as reducing agent via Chemical Reduction Method.

  1. CHECK LIST
    Silver Nitrtae, Polyvinylpyrrolidone (PVP M.W.:40,000), Ethylene Glycol, HCL, Deionized Water, RB Flask, Dropper, Magnetic Stirrer.

  2. STEP 1.
    Take 25ml Ethylene glycol and heat at 130°C for 60 minutes.

  3. STEP 2.
    Add 5ml HCL and stirrer for 15 minutes.

  4. STEP 3.
    Add (0.25g in 15ml) PVP solution and (0.24g in 15ml) Silver Nitrate solution both simultaneously drop by drop slowly in the solution prepared in step-2.

  5. STEP 4.
    After 12 hours, the color changes to transparent indicates the nucleation of Nanoclusters.

  6. STEP 5.
    The RB flask was then left without stirring for 10 hours and the red brown solution indicated the formation of Silver Nanocubes.

  7. STEP 6.
    Wash Silver Nanocubes by using Centrifuge the at 6000 rpm with acetone:waster (2:1) mixture.

  8. STEP 7.
    Silver Nanocubes can now be dispersed in Methanol by using Sonicator and used in any desired application.

  9. RESULTS
    Silver Nanocubes with around 50 nanometers of size. UV-Vis absorbance will be observed around 430nm.

  10. Factors Affecting Synthesis
    Addition of Precursor and Capping Agent: Silver Nitrate and PVP should be added slowly for uniformity of the Silver Nanocubes.
    Molecular Weight of PVP: Molecular weight of PVP will also effect the morphology and size of Silver Nanomaterial.

  11. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanocubes-1/feed/ 1 Copper Nanoparticles Green Synthesis by using Copper Nitrate and Bottle Brush Leaves via Biological Method https://instanano.com/all/nanomaterial-synthesis/metal/copper-nanoparticles-2/ https://instanano.com/all/nanomaterial-synthesis/metal/copper-nanoparticles-2/#comments Fri, 23 Apr 2021 12:04:19 +0000 https://instanano.com/?p=242

Copper Nanoparticles Green Synthesis by using Copper Nitrate as Precursor and Bottle Brush Leaves extract as Reducing and Stabilising Agent via Biological Method.

  1. CHECK LIST
    Fresh leaves of Bottle Brush, Copper Nitrate, Deionized Water, RB Flask, Dropper, Magnetic Stirrer with Temperature option, FIlter Paper

  2. STEP 1.
    Take fresh leaves of Bottle Brush. Wash properly and cut them into small pieces

  3. STEP 2.
    Take 25g leaves pieces in 100ml of deionized water and boil the leaves around 80-90ºC for 5-10 minutes.

  4. STEP 3.
    When the water turns GREEN, filter it out and use it as reducing and capping agent for Nanoparticles synthesis.

  5. STEP 4.
    Take 0.5g Copper Nitrate in 100ml deionized water; and set the temperature 60-70ºC.

  6. STEP 5.
    Add leaf extract drop wise slowly (prepared in step 3) into Copper Nitrate solution, until the color changes to light GREEN.

  7. RESULTS
    The light Green color indicated the formation of Copper Nanoparticles in water. UV-Vis spectroscopy absorption peak would be obtained around 600nm.

  8. Factors Affecting Synthesis
    Species of Plant/Tree: Different types of Plants/Trees are having different types of chemical composition and concentration of specific chemical in its leaves. So different species of Plants/Trees can give the different particle size, size distribution. Even morphology can also be changed by using leaf extract of different plants/trees.
    Concentration of Copper Nitrate: Nickel Chloride is used as the precursor in this synthesis. Higher the concentration of Nickel Chloride, more the chances of agglomeration; further leads to bulky size particles.
    Concentration of Leaves in Water: Concentration of leaves in water is very important for Nanoparticles synthesis. Higher concentration of leaves in water, leads to higher concentration of reducing and capping agent in water.
    Temperature: The temperature is another important factor in the synthesis of Nanoparticles, change in temperature leads to change in the particles size; also higher temperature leads to faster chemical Kinetics.

  9. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/copper-nanoparticles-2/feed/ 2 Silver Nanoparticles Green Synthesis by using Silver Nitrate and Bottle Brush Leaves via Biological Method https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-1/ https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-1/#comments Fri, 23 Apr 2021 11:57:14 +0000 https://instanano.com/?p=233

Silver Nanoparticles Green Synthesis by using Silver Nitrate as Precursor and Bottle Brush Leaves extract as Reducing and Stabilising Agent via Biological Method

  1. CHECK LIST
    Silver Nitrate, Fresh leaves of Bottle Brush, Deionized Water, RB Flask, Dropper, Magnetic Stirrer with Temperature option, FIlter Paper

  2. STEP 1.
    Take fresh leaves of Bottle Brush. Wash properly and cut them into small pieces.

  3. STEP 2.
    Take 25g leaves pieces in 100ml of deionized water and boil the leaves around 80ºC for 5-10 minutes.

  4. STEP 3.
    When the water turns GREEN, filter it out and use it as reducing and capping agent for Nanoparticles synthesis.

  5. STEP 4.
    Take 50mg Silver Nitrate salt in 50ml deionized water; and set the temperature 60-70ºC.

    (NOTE: Silver Nitrate degrades in Silver Oxide (Black color) in light, so wrap flask with aluminium foil to avoide this.)

  6. STEP 5.
    Add leaf extract drop wise slowly (prepared in step 3) into Silver Nitrate solution, until the color chnages light YELLOW.

  7. RESULTS
    The light Yellow color indicated the formation of Silver Nanoparticles in water. UV-Vis spectroscopy absorption peak would be obtained around 420nm.

  8. Factors Affecting Synthesis
    Species of Plant/Tree:Different types of Plants/Trees are having different types of chemical composition and concentration of specific chemical in its leaves. So different species of Plants/Trees can give the different particle size, size distribution. Even morphology can also be changed by using leaf extract of different plants/trees.
    Concentration of Silver Nitrate: Silver Nitrate is used as the precursor in this synthesis. Higher the concentration of Silver Nitrate, more the chances of agglomeration; further leads to bulky size particles.
    Concentration of Leaves in Water: Concentration of leaves in water is very important for Nanoparticles synthesis. Higher concentration of leaves in water, leads to higher concentration of reducing and capping agent in water.
    Temperature: The temperature is another important factor in the synthesis of Nanoparticles, change in temperature leads to change in the particles size; also higher temperature leads to faster chemical Kinetics.

  9. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-1/feed/ 1 Nickel Nanoparticles Green Synthesis by using Nickel Chloride and Desmodium Gangeticum Leaves via Biological Method https://instanano.com/all/nanomaterial-synthesis/metal/nickel-nanoparticles-1/ https://instanano.com/all/nanomaterial-synthesis/metal/nickel-nanoparticles-1/#respond Fri, 23 Apr 2021 12:11:03 +0000 https://instanano.com/?p=254

Nickel Nanoparticles Green Synthesis by using Nickel Chloride as precursor and Desmodium Gangeticum Leaves extract as reducing and stabilising agent via Biological Method.

  1. CHECK LIST
    Fresh leaves of Desmodium Gangeticum (Linn), Nickel Chloride (anhydrous), Deionized Water, RB Flask, Dropper, Magnetic Stirrer with Temperature option, Filter Paper

  2. STEP 1.
    Take fresh leaves of Desmodium Gangeticum. Wash properly and cut them into small pieces.

  3. STEP 2.
    Take 25g leaves pieces in 100ml of deionized water and boil the leaves around 80-90ºC for 5-10 minutes.

  4. STEP 3.
    When the water turns GREEN, filter it out and use it as reducing and capping agent for Nanoparticles synthesis.

  5. STEP 4.
    Take 0.5g Nickel Chloride in 100ml deionized water; and set the temperature 80ºC.

  6. STEP 5.
    Add leaf extract drop wise slowly (prepared in step 3) into Nickel Chloride solution, until the color changes to light GRAY.

  7. RESULTS
    The Gray color indicated the formation of Nickel Nanoparticles in water. UV-Vis spectroscopy absorption peak would be obtained around 270nm.

  8. Factors Affecting Synthesis
    Species of Plant/Tree: Different types of Plants/Trees are having different types of chemical composition and concentration of specific chemical in its leaves. So different species of Plants/Trees can give the different particle size, size distribution. Even morphology can also be changed by using leaf extract of different plants/trees.
    Concentration of Nickel Chloride: Nickel Chloride is used as the precursor in this synthesis. Higher the concentration of Nickel Chloride, more the chances of agglomeration; further leads to bulky size particles.
    Concentration of Leaves in Water: Concentration of leaves in water is very important for Nanoparticles synthesis. Higher concentration of leaves in water, leads to higher concentration of reducing and capping agent in water.
    Temperature: The temperature is another important factor in the synthesis of Nanoparticles, change in temperature leads to change in the particles size; also higher temperature leads to faster chemical Kinetics.

  9. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/nickel-nanoparticles-1/feed/ 0 Copper Nanoparticles Synthesis by using Silver Nitrate, PVP and Hydrazine Hydrate via Chemical Reduction Method https://instanano.com/all/nanomaterial-synthesis/metal/copper-nanoparticles-1/ https://instanano.com/all/nanomaterial-synthesis/metal/copper-nanoparticles-1/#respond Fri, 23 Apr 2021 11:26:02 +0000 https://instanano.com/?p=221

Copper Nanoparticles Synthesis by using Silver Nitrate as Precursor, PVP as Stabilising Agent and Hydrazine Hydrate as Reducing Agent via Chemical Reduction Method

  1. CHECK LIST
    Copper Nitrate, Polyvinylpyrrolidone (PVP), Hydrazine Hydrate, Deionized Water, RB Flask, Magnetic Stirrer

  2. STEP 1.
    Add 2g Polyvinylpyrrolidone-30 in 100ml water and set temperate to 60ºC to dissolve it properly.

  3. STEP 2.
    Add 1g Copper Nitrate and stir for more 10 minutes.

  4. STEP 3.
    Add Hydrazine Hydrazine Hydrate drop-wise in vigorous stirring until the colour turns Green.

  5. STEP 4.
    The Green colour indicates the formation of Copper Nanoparticles in water.

  6. RESULTS
    The average size of Copper Nanoparticles would be less than 10nm; UV-Vis spectroscopy absorption peak would be obtained around 600nm.

  7. Factors Affecting Synthesis
    Concentration of Polyvinylpyrrolidone: Polyvinylpyrrolidone (PVP) is used as the capping agent in this synthesis method. Hence if the concentration of PVP is changed, then size of Copper Nanoparticles will also change. Lower the concentration of PVP, bigger the particle size.
    Concentration of Copper Nitrate: Copper Nitrate is used as the precursor in this. Higher the concentration of Copper Nitrate, bigger the size of Copper Nanoparticles.
    Concentration of Hydrazine Hydrate: Hydrazine Hydrate is used as the reducing agent in this synthesis method. Higher the concentration of Hydrazine Hydrate, more chances of agglomeration of Copper Nanoparticles, leads to bulky reddish bulky color particles.
    Effect of Temperature: Higher temperature mostly leads to good size distribution size range particles but in this synthesis PVP polymer bonds may break if you try to increase the temperate beyond 80ºC.

  8. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/copper-nanoparticles-1/feed/ 0 Silver Nanoparticles Green Synthesis by using Silver Nitrate, Rice Grains and CTAB via Biological Method https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-4/ https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-4/#respond Thu, 22 Sep 2022 07:38:34 +0000 https://instanano.com/?p=10960

Silver Nanoparticles Green Synthesis by using Silver Nitrate as precursor, Rice Grains as reducing agent and CTAB as stabilising agent via Biological Method

  1. CHECK LIST
    Silver Nitrate, Rice grains, Cetyl trimethyl ammonium bromide (CTAB), Deionized Water, RB Flask, Dropper, Magnetic Stirrer.

  2. STEP 1.
    Take 2g of rice grains in 10ml of water and boil at 100°C for 1 hours to prepare starch solution.

  3. STEP 2.
    Take 50mg Silver Nitrate in 50ml of water and add 0.5ml of starch solution in it drop wide. Set the reflux at 80°C for 30 minuted.

  4. STEP 3.
    After 30 minutes cool down the solution to room temperature and add 2g of CTAB and stirrer 30°C for 12 hours.

  5. STEP 4.
    After 12 hours, the solution. will turn light yellow indicated the formation of Silver Nanoparticles.

  6. RESULTS
    Silver Nanoparticles size should be around 20-30 nanometers. UV-Vis absorbance should be around 420nm.

  7. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-4/feed/ 0 Silver Nanorods Synthesis by using Silver Nitrate, Rice grain and CTAB via Seed Growth Method https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanorods-1/ https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanorods-1/#respond Thu, 22 Sep 2022 09:29:54 +0000 https://instanano.com/?p=10963

Silver Nanorods Synthesis by using Silver Nitrate as precursor, Rice grain as reducing agent and CTAB as stabilising agent via Seed Growth Method

  1. CHECK LIST
    Silver Nitrate, Rise grain, Cetyl trimethyl ammonium bromide (CTAB), NaOH, Deionized Water, RB Flask, Dropper, Magnetic Stirrer.

  2. STEP 1.
    Take 2g of rice grains in 10ml of water and boil at 100°C for 1 hours to prepare starch solution.
  3. STEP 2.
    Take 5mg of Silver Nitrate in 10ml and add 0.6ml of starch solution, setup the reflux at 50°C for 2 hours, to prepare seed solution
  4. STEP 3.
    Take 50mg CTAB in 7ml of water, add 0.5ml starch solution into it.
  5. STEP 4.
    Add 0.01mg Silver Nitrate in 0.5ml of water and add it in the solution prepared in step-3. This is growth solution.
  6. STEP 5.
    Add 1ml of seed solution (prepared in step-2) in growth solution (prepared in step-4).
  7. STEP 6.
    Add 20mg NaOH in 0.5ml water and add it into solution prepared in step-5 (pH~11).
  8. STEP 7.
    Stop stirring and keep the solution (prepared in step-6) untouched for 2 hours at 30°C.
  9. RESULTS
    Silver Nanorods should be having a diameter of ~ 20 nanometers and length of ~ 100 nanometers.
  10. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.
]]> https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanorods-1/feed/ 0 Gold Nanoparticles Green Synthesis by using Tetrachloroauric Acid and Bottle Brush Leaves via Biological Method https://instanano.com/all/nanomaterial-synthesis/metal/gold-nanoparticles-1/ https://instanano.com/all/nanomaterial-synthesis/metal/gold-nanoparticles-1/#comments Fri, 23 Apr 2021 12:12:59 +0000 https://instanano.com/?p=256

Gold Nanoparticles Green Synthesis by using Tetrachloroauric Acid as precursor and Bottle Brush Leaves as reducing and stabilising agent via Biological Method

  1. CHECK LIST
    Fresh leaves of Neem, Bottle Brush, Tetrachloroauric acid (HAuCl4·3H2O), Deionized Water, RB Flask, Dropper, Magnetic Stirrer with Temperature option, Filter Paper

  2. STEP 1.
    Take fresh leaves of Bottle Brush. Wash properly and cut them into small pieces.

  3. STEP 2.
    Take 25g leaves pieces in 100ml of deionized water and boil the leaves around 80ºC for 5-10 minutes.

  4. STEP 3.
    When the water turns GREEN, filter it out and use it as reducing and capping agent for Nanoparticles synthesis.

  5. STEP 4.
    Take 50mg Tetrachloroauric acid in 100ml deionized water; and set the temperature 60ºC.

  6. STEP 5.
    Add leaf extract drop wise slowly (prepared in step-3) into Tetrachloroauric acid solution, until the color chnages to Red or Violet.

    (The color depends on the size of Gold Nanoparticles and the type of leaves you have taken).

  7. RESULTS
    The Red or Violet color indicated the formation of Gold Nanoparticles in water. UV-Vis spectroscopy absorption peak would be obtained around 530nm.

  8. Factors Affecting Synthesis
    Species of Plant/Tree: Different types of Plants/Trees are having different types of chemical composition and concentration of specific chemical in its leaves. So different species of Plants/Trees can give the different particle size, size distribution. Even morphology can also be changed by using leaf extract of different plants/trees.
    Concentration of Precursor: Silver Nitrate is used as the precursor in this synthesis. Higher the concentration of Silver Nitrate, more the chances of agglomeration; further leads to bulky size particles.
    Concentration of Leaves in Water: Concentration of leaves in water is very important for Nanoparticles synthesis. Higher concentration of leaves in water, leads to higher concentration of reducing and capping agent in water.
    Temperature: The temperature is another important factor in the synthesis of Nanoparticles, change in temperature leads to change in the particles size; also higher temperature leads to faster chemical Kinetics.

  9. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/gold-nanoparticles-1/feed/ 1 Silver Nanoparticles Synthesis by using Silver Nitrate, Hydrazine Hydrate and AOT via Microemulsion Method. https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-3/ https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-3/#respond Wed, 21 Sep 2022 11:09:05 +0000 https://instanano.com/?p=10957

Silver Nanoparticles Synthesis by using Silver Nitrate as precursor, Hydrazine Hydrate as reducing agent and AOT (surfactant) via Microemulsion Method.

  1. CHECK LIST
    Silver Nitrate, Hydrazone Hydrate (N2H2.H2)), Sodium bis(2-ethylhxyl) Sulfoduccinate (AOT), Dedecone, Deionized Water, RB Flask, Dropper, Magnetic Stirrer.

  2. STEP 1.
    Take 2.2g of AOT in 25ml of dedecane.

  3. STEP 2.
    Take 170 mg Silver Nitrate in 5ml water and add it drop wise into solution prepared into step-1, to prepare precursor microemulsion.

  4. STEP 3.
    Again, take Take 2.2g of AOT in 25ml of dedecane (same as taken in step-1).

  5. STEP 4.
    Take 150mg Hydrazine hydrate in 5ml of water and add it drop wise into solution prepared into step-3, to prepare reducing agent microemulsion

  6. STEP 5.
    Add reducing agent microemulsion (prepared in step-4) into precursor emulsion (prepared in step-2) and mix them at maximum rpm.

  7. STEP 6.
    After 3 hours, the color changes to light yellow indicates the formation of Silver Nanoparticles.

  8. RESULTS
    Silver Nanoparticles size should be around 5-10 nanometers. UV-Vis absorbance should be around 420nm.

  9. Factors Affecting Synthesis
    Stirring Speed: Stirring speed is very important in this as microemulsion droplet size depends on the stirring speed. As much as high speed would be there, smaller the emulsion droplet size thus leading to small size Nanoparticles.

  10. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-3/feed/ 0 Silver Nanoparticles Green Synthesis by using Silver Nitrate and Turmeric powder via Biological Method https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-2/ https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-2/#respond Thu, 15 Sep 2022 19:49:00 +0000 https://instanano.com/?p=10834

Silver Nanoparticles Green Synthesis by using Silver Nitrate as precursor and Turmeric powder as reducing and stabilising agent via Biological Method

  1. CHECK LIST
    Silver Nitrate, Turmeric powder, Deionized Water, RB Flask, Dropper, Magnetic Stirrer.

  2. STEP 1.
    Take 7g of Turmeric powder in 100ml water and reflux at 80°C for 10 minutes.

  3. STEP 2.
    Filter the extract and centrifuge at 5000rpm for 10 minutes. This extract was further used as reducing and stabilising agent for Nanoparticles synthesis.

  4. STEP 3.
    Take 4mg Silver Nitrate in 25ml water. Add 5ml Turmeric extract into Silver Nitrate solution at room temperature.

  5. STEP 4.
    After 12 hours, the solution turns Reddish-Brown indicates the formation of Silver Nanoparticles.

  6. RESULTS
    Silver Nanoparticles should be having a size around 10 to 20 nanometers. UV-Vis absorbance should be observed around 430nm.

  7. Factors Affecting Synthesis
    Turmeric Extract: Turmeric extract acts as reducing and capping agent in this synthesis, so concentration of this in silver nitrate solution can lead to change in size of the Silver Nanoparticles formed during synthesis.
    Concentration of Silver Nitrate: Lower the concentration of Silver Nitrate smaller will be the size of Silver Nanoparticles.

  8. NOTE: All the experiments should be done under the guidance of lab Incharge; and proper lab safety instructions.

]]> https://instanano.com/all/nanomaterial-synthesis/metal/silver-nanoparticles-2/feed/ 0