Nano microcrystalline glass containing stannic oxide and preparation method of nano microcrystalline glass

A nano-crystal and tin dioxide technology, applied in the field of inorganic light-emitting materials, can solve the problems of application requirements that cannot meet high brightness, poor light-emitting effect of glass materials, etc., and achieve the effects of easy operation, improved light-emitting, and improved light-emitting performance.

Active Publication Date: 2020-10-30
JINAN UNIVERSITY
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  • Application Information

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Problems solved by technology

[0005] The patent with publication number CN107082571A discloses an up-conversion luminescent glass doped with ITO nanoparticles and its preparation method and application; the patent with application number 201910470821.4 discloses a co-doped Eu 3+ and SnO 2 Nanocrystalline glass in fluorescence detection of Fe 3+ applications in , which document the co-doped Eu 3+ and SnO 2 The preparation method of nanocrystalline glass, the active ions doped in these samples and all samples prepared by sol-gel method are uniformly distributed in the glass matrix and ITO, SnO 2 In the crystal, the overall luminous effect of the glass material is not good, and it cannot meet the application requirements of high brightness

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  • Nano microcrystalline glass containing stannic oxide and preparation method of nano microcrystalline glass
  • Nano microcrystalline glass containing stannic oxide and preparation method of nano microcrystalline glass
  • Nano microcrystalline glass containing stannic oxide and preparation method of nano microcrystalline glass

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Embodiment 1

[0045] A preparation method of nano glass ceramics containing tin dioxide, comprising the steps of:

[0046] (1) Porous glass solution doping;

[0047] Configure SnCl 4 and EuCl 3 A mixed aqueous solution of which, Sn 4+ The concentration is 0.8mol / L, Eu 3+ The concentration is 0.4mol / L. Porous glass (the preparation method of porous glass is: SiO 2 , B 2 o 3 、Al 2 o 3 、Na 2 CO 3 Mix it with CaO powder raw material according to the weight percentage of 51:29:1.6:13:5.4, burn at 1400°C for 2 hours, pour out the molten glass, put it into a muffle furnace at 600°C for 24 hours for phase separation, and then heat it at 100°C Soak in 1mol / L hot hydrochloric acid for 24 hours to obtain porous glass; the pore size of the porous glass is 4-50nm) and immerse in the above mixed solution for 30 minutes; take it out and blow dry at 10°C-120°C or dry it by yourself.

[0048] (2) Initial heat treatment;

[0049] Heating the porous glass obtained in step (1) at 500° C. for 1 h; ...

Embodiment 2

[0057] The method of processing porous glass in the common method doping mode to prepare nano glass-ceramics containing tin dioxide (i.e. the acid-free treatment preparation method of porous glass): the doped dry porous glass obtained in step (1) of Example 1 is directly placed in The co-doped Eu 3+ and SnO 2 Nanocrystalline glass.

[0058] The tin dioxide-containing nano-glass-ceramics prepared by doping according to the above common method was compared with the tin-oxide-containing nano-glass-ceramics prepared by the method described in Example 1 of the present invention.

[0059] The distribution of Eu ions in the tin dioxide-containing nano glass-ceramics prepared by the above two methods is as follows: figure 2 shown. from figure 2 It can be seen that the Eu ions of the tin dioxide-containing nanoglass-ceramics prepared by the ordinary method doping method for porous glass are substantially evenly distributed inside and outside the tin dioxide crystals, while the Eu...

Embodiment 3

[0063] Implementation method is the same as embodiment 1, but present embodiment puts EuCl 3 Replaced by Er(NO 3 ) 3 .

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Abstract

The invention provides nano microcrystalline glass containing stannic oxide and a preparation method of the nano microcrystalline glass, and belongs to the technical field of inorganic luminescent materials. The preparation method of the nano microcrystalline glass containing stannic oxide comprises the following steps: porous glass solution doping; primary heat treatment; acid treatment; and secondary heat treatment. The inventor of the invention accidentally discovers that a fact that light-emitting ions outside stannic oxide crystals are removed, only ions in stannic oxide emit light, but the whole stannic oxide emits stronger light, that is, porous glass is sequentially doped with a mixed solution containing tin ions and light-emitting ions, subjected to primary heat treatment and thensubjected to acid treatment, so that the transparency of the glass can be effectively improved, and the light-emitting performance of the high-silica glass is improved. The method breaks through theinertial understanding that personnel in the industry pursue uniform distribution of active ions to improve the overall light-emitting effect of the glass.

Description

technical field [0001] The invention belongs to the technical field of inorganic luminescent materials, and in particular relates to a nano glass-ceramic containing tin dioxide and a preparation method thereof. Background technique [0002] Quartz and high-silica glass substrates have high transparency, thermal shock resistance, acid and alkali chemical corrosion resistance. High silica glass doped with active ions has important application value in the field of photoluminescence and laser. The methods for preparing high silica glass doped with active ions mainly include porous glass doping and sol-gel method (Sol-Gel). The advantage of using porous glass to prepare luminescent glass is that the connected nanopores provide a large specific surface area for active ions, so that porous glass can absorb enough active ions, and the subsequent sintering does not undergo melting process, which effectively prevents luminescent activity. The cluster of the agent, so the prepared l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/14C03C4/12C03C23/00
CPCC03C10/0009C03C4/12C03C23/007C03C23/0095C03C2214/30
Inventor 郑书培方再金
Owner JINAN UNIVERSITY
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