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Preparation of Nanomaterials.
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Soft Physical It involves the conversion of bulk into nano Larger particle to nanopracticles.
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Bulk material. Macro particle. Nano particles. Nano cluster.
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1. Sol-Gel Process:. It is the conversion of colloidal solution(sol) to “gel”. Principles : Used to produce solid materials from smaller molecule. The precursor is dissolved in water or alcohol to form “sol”. Then converted into gel by heating. It is a wet chemical technique. It used to produce metal oxides..
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[image] strong sol gel process strong www newpro de.
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2. Solvothermal Synthesis:. It involves the solvent under high temperature and high pressure to form precursors. Temperature- 100°C to 1000°C Pressure- 1 atm to 10,000 atm.
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It involves conversion of gaseous molecules into solid nanomaterials in the form of tubes,wires..