| abstract |
The present invention relates to a kind of silicon substrate nitrogen oxides powder and preparation method thereof, belong to field of inorganic nonmetallic material.Silicon substrate nitrogen oxides powder preparation method comprises the following steps：A, according to silicon substrate nitrogen oxides M x Si y N z O chemical formulas, metal M raw material is mixed into silicon dioxide gel, makes its dispersed or dissolve, obtain precursor sol；B, precursor sol is changed into gel, dries, crushes, sieving, obtaining aqueous precursor gel M Si O powders；C, aqueous precursor gel powder is under nitrogen containing atmosphere, heat resolve, through reduction nitridation, obtains silicon substrate nitrogen oxides powder.Present invention process process is simple, and cost is cheap；Nitrogen is provided by ammonia, controls the nitrogen oxygen ratio of the controllable silicon substrate nitrogen oxides of reaction condition, obtains designed composition, avoids carbon to the adverse effect applied as fluorescent material.Silicon substrate nitrogen oxides powder prepared by this method can use as the powder material or fluorescent material of nanometer nitrogen oxide ceramic. |