CN103833080B - A kind of preparation method of molybdic acid cadmium porous ball - Google Patents
A kind of preparation method of molybdic acid cadmium porous ball Download PDFInfo
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- 229910052793 cadmium Inorganic materials 0.000 title claims abstract description 34
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 title claims abstract 7
- YKYOUMDCQGMQQO-UHFFFAOYSA-L cadmium dichloride Chemical compound Cl[Cd]Cl YKYOUMDCQGMQQO-UHFFFAOYSA-L 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- LHQLJMJLROMYRN-UHFFFAOYSA-L cadmium acetate Chemical compound [Cd+2].CC([O-])=O.CC([O-])=O LHQLJMJLROMYRN-UHFFFAOYSA-L 0.000 claims abstract description 18
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims abstract description 18
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 17
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 17
- 239000001632 sodium acetate Substances 0.000 claims abstract description 17
- 235000015393 sodium molybdate Nutrition 0.000 claims abstract description 17
- 239000011684 sodium molybdate Substances 0.000 claims abstract description 17
- 238000001556 precipitation Methods 0.000 claims abstract description 14
- 239000012153 distilled water Substances 0.000 claims abstract description 13
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 6
- 238000010335 hydrothermal treatment Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 230000003252 repetitive effect Effects 0.000 claims abstract 2
- 238000005201 scrubbing Methods 0.000 claims abstract 2
- 239000000243 solution Substances 0.000 claims description 49
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- 150000002500 ions Chemical class 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 239000002243 precursor Substances 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 239000004094 surface-active agent Substances 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 26
- 239000000463 material Substances 0.000 description 13
- 238000001027 hydrothermal synthesis Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 239000004530 micro-emulsion Substances 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000002159 nanocrystal Substances 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- ZGHDMISTQPRNRG-UHFFFAOYSA-N dimolybdenum Chemical compound [Mo]#[Mo] ZGHDMISTQPRNRG-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 239000012713 reactive precursor Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Iron (AREA)
Abstract
Description
技术领域 technical field
本发明涉及一种钼酸镉的制备方法，尤其涉及一种钼酸镉多孔球的制备方法。 The invention relates to a preparation method of cadmium molybdate, in particular to a preparation method of cadmium molybdate porous balls.
背景技术 Background technique
钼酸镉(CdMoO4)具有白钨矿结构，在此结构中，钼原子处于四面体中心，钼酸镉的发光性能主要是由于钼酸根中电子的转移和跃迁，因此它在光致发光、光催化材料、光纤、闪烁体检测器、激光材料、磁性材料、传感器等很多领域都具有广阔的应用前景，因而成为近几年重点研究的无机材料之一。 Cadmium molybdate (CdMoO 4 ) has a scheelite structure. In this structure, the molybdenum atom is in the center of the tetrahedron. The luminescent performance of cadmium molybdate is mainly due to the transfer and transition of electrons in molybdate. Photocatalytic materials, optical fibers, scintillator detectors, laser materials, magnetic materials, sensors and many other fields have broad application prospects, so they have become one of the inorganic materials that have been studied in recent years.
众所周知，固体的光致发光特性与固体颗粒的尺寸、形貌和微结构有关，并且纳米材料的性能也取决于其纳米晶体的形貌和尺寸等因素，从而造成不同的反应条件对纳米钼酸镉的尺寸、形貌和微结构有着重要的影响，因而具有特殊形貌的纳米材料都会表现出一些优异的性能，因此，制备出形貌新颖的钼酸镉纳米晶体在理论基础研究和实际应用方面都具有非常重要的意义。 It is well known that the photoluminescent properties of solids are related to the size, morphology and microstructure of solid particles, and the properties of nanomaterials also depend on factors such as the morphology and size of their nanocrystals, resulting in different reaction conditions for nanomolybdic acid. The size, shape and microstructure of cadmium have an important influence, so nanomaterials with special shapes will show some excellent properties. aspects are of great importance.
目前，钼酸镉的制备方法为水热法和微乳辅助水热法。利用微乳辅助水热法时，由于加入了大量的有机物，从而对后续的处理带来了麻烦；同时水热法和微乳辅助水热法制备出的钼酸镉形貌也较规则，在性能上并未达到理性的效果。 At present, the preparation methods of cadmium molybdate are hydrothermal method and microemulsion assisted hydrothermal method. When the microemulsion-assisted hydrothermal method is used, a large amount of organic matter is added, which brings troubles to the subsequent treatment; at the same time, the morphology of the cadmium molybdate prepared by the hydrothermal method and the microemulsion-assisted hydrothermal method is also relatively regular. The performance did not achieve a rational effect.
发明内容 Contents of the invention
本发明的目的是为了解决上述技术问题存在的不足，提供一种工艺简单、不使用任何有机表面活性剂、无污染、易于工业化生产、结晶好、纯度高、并有效地控制晶体形貌的钼酸镉多孔球的制备方法。 The purpose of the present invention is to solve the deficiencies in the above-mentioned technical problems, and to provide a molybdenum molybdenum with simple process, no use of any organic surfactant, no pollution, easy industrial production, good crystallization, high purity, and effective control of crystal morphology. The preparation method of acid cadmium porous ball.
本发明的钼酸镉多孔球的制备方法，具体步骤如下： The preparation method of cadmium molybdate porous ball of the present invention, concrete steps are as follows:
步骤一、将氯化镉溶于去离子水，形成氯化镉水溶液，调节溶液中的Cd2+离子的浓度为0.1~3.0mol/L； Step 1, dissolving cadmium chloride in deionized water to form an aqueous cadmium chloride solution, adjusting the concentration of Cd 2+ ions in the solution to be 0.1 to 3.0 mol/L;
步骤二、将乙酸钠溶于去离子水，形成乙酸钠水溶液，调节溶液中的CH3COO-离子的浓度为0.1~3.0mol/L； Step 2, dissolving sodium acetate in deionized water to form an aqueous sodium acetate solution, and adjusting the concentration of CH 3 COO - ions in the solution to 0.1 to 3.0 mol/L;
步骤三、将钼酸钠溶于去离子水，形成钼酸钠水溶液，调节溶液中的MoO4 2-离子的浓度为0.1~3.0mol/L； Step 3, dissolving sodium molybdate in deionized water to form an aqueous solution of sodium molybdate, and adjusting the concentration of MoO 4 2- ions in the solution to 0.1-3.0 mol/L;
步骤四、将步骤一制得的氯化镉溶液和步骤二制得的乙酸钠溶液相混合，混合比例为1:1，得到乙酸镉沉淀作为反应先驱体； Step 4, the cadmium chloride solution prepared in step 1 is mixed with the sodium acetate solution prepared in step 2, and the mixing ratio is 1:1 to obtain cadmium acetate precipitation as a reaction precursor;
步骤五、将步骤三制得的钼酸钠溶液与步骤四制得的乙酸镉沉淀溶液相混合，混合比例为1:1，然后加入到反应釜内胆中，用蒸馏水调节反应釜内胆中的反应物料体积达到反应釜内胆容积的70%~90%； Step 5, mix the sodium molybdate solution prepared in step 3 with the cadmium acetate precipitation solution prepared in step 4, the mixing ratio is 1:1, then add it to the inner tank of the reactor, and adjust the inner tank of the reactor with distilled water The volume of the reaction material reaches 70%~90% of the inner tank volume of the reactor;
步骤六、将步骤五装有反应物料的反应釜内胆置于反应釜中，密封，在110~200℃下，保温2~12小时进行水热处理，然后让反应釜自然冷却到室温，卸釜后，用蒸馏水反复洗涤反应产物，过滤、烘干后，得到钼酸镉多孔球。 Step 6. Put the reactor liner filled with the reaction materials in step 5 into the reactor, seal it, and heat it at 110-200°C for 2-12 hours for hydrothermal treatment, then let the reactor cool down to room temperature naturally, and unload the reactor Finally, the reaction product was repeatedly washed with distilled water, filtered and dried to obtain cadmium molybdate porous balls.
本发明制备过程中，必须以乙酸镉沉淀作为反应先驱体，否则得不到钼酸镉多孔球，这是因为钼酸镉独特多孔球是在高温下保温的过程中形成的，是通过钼酸根离子与乙酸镉反应先驱体反应后形成的。由于晶体的生长过程与化学反应过程密切相关，在特定的化学反应过程，可以促使晶体发生取向生长，得到具有特殊形貌和结构的晶体。本发明采用乙酸镉作为反应先驱体，可以使钼酸镉晶体的生长方向发生转变，促使其生长成为钼酸镉多孔球，乙酸镉是形成钼酸镉多孔球非常关键的因素。 In the preparation process of the present invention, cadmium acetate precipitation must be used as the reaction precursor, otherwise the porous cadmium molybdate balls will not be obtained. Ions are formed after reacting with the cadmium acetate reactive precursor. Because the crystal growth process is closely related to the chemical reaction process, in a specific chemical reaction process, the crystal can be promoted to grow in orientation, and crystals with special morphology and structure can be obtained. The present invention uses cadmium acetate as a reaction precursor, which can change the growth direction of cadmium molybdate crystals and promote their growth into porous cadmium molybdate spheres, and cadmium acetate is a key factor for forming cadmium molybdate porous spheres.
本发明制备过程中，所述的钼酸钠、氯化镉、乙酸钠和无水乙醇的纯度均不低于化学纯。 In the preparation process of the present invention, the purity of the sodium molybdate, cadmium chloride, sodium acetate and absolute ethanol is not lower than chemical purity.
在步骤五中用蒸馏水调节反应釜内胆中的反应物料体积达到反应釜内胆容积的70%~90%，这是为了使水热反应体系处于沸腾状态，利用化学反应的进行，使钼酸钠溶液与乙酸镉溶液反应更加的充分。 In step 5, use distilled water to adjust the volume of the reaction material in the inner tank of the reactor to 70% to 90% of the inner tank volume of the reactor. This is to make the hydrothermal reaction system in a boiling state, and to make molybdic Sodium solution reacts more fully with cadmium acetate solution.
在步骤六中洗涤和过滤是为了去除溶液中的钠离子、氯离子等杂质、烘干是为了去掉蒸馏水后，得到纯度较高的钼酸镉多孔球。 Washing and filtering in step 6 are to remove impurities such as sodium ions and chloride ions in the solution, and drying is to obtain cadmium molybdate porous balls with higher purity after removing distilled water.
本发明的有益效果在于： The beneficial effects of the present invention are:
本发明提供的这种钼酸镉多孔球的制备方法，具有工艺过程简单、不使用任何有机表面活性剂、无污染、结晶性好、纯度高等优点，能够有效地控制钼酸镉纳米晶体的形貌。本发明制备出的钼酸镉多孔球，因其具有的独特多孔结构，因而在光致发光、光催化材料、光纤、闪烁体检测器、激光材料、磁性材料、传感器等方面，更具有更加优异的性能，并有着更加广泛的应用前景。 The preparation method of the cadmium molybdate porous ball provided by the present invention has the advantages of simple process, no use of any organic surfactant, no pollution, good crystallinity, high purity, etc., and can effectively control the shape of cadmium molybdate nanocrystals. appearance. The cadmium molybdate porous ball prepared by the present invention has more excellent performance in photoluminescence, photocatalytic materials, optical fibers, scintillator detectors, laser materials, magnetic materials, sensors, etc. because of its unique porous structure. performance, and has a broader application prospect.
附图说明 Description of drawings
图1是本发明合成的钼酸镉多孔球的X射线衍射（XRD）图谱； Fig. 1 is the X-ray diffraction (XRD) pattern of the cadmium molybdate porous ball synthesized by the present invention;
图2是本发明合成的钼酸镉多孔球的透射电镜(TEM)照片。 Fig. 2 is a transmission electron microscope (TEM) photo of the cadmium molybdate porous sphere synthesized by the present invention.
具体实施方式 detailed description
以下结合实施例进一步说明本发明。 Below in conjunction with embodiment further illustrate the present invention.
实施例1 Example 1
步骤一、将氯化镉溶于去离子水，形成氯化镉水溶液，调节溶液中的Cd2+离子的浓度为0.15mol/L； Step 1, cadmium chloride is dissolved in deionized water to form an aqueous cadmium chloride solution, and the concentration of Cd ions in the solution is adjusted to be 0.15mol/L;
步骤二、将乙酸钠溶于去离子水，形成乙酸钠水溶液，调节溶液中的CH3COO-离子的浓度为0.15mol/L； Step 2, dissolving sodium acetate in deionized water to form an aqueous sodium acetate solution, adjusting the concentration of CH3COO- ions in the solution to 0.15mol/L;
步骤三、将钼酸钠溶于去离子水，形成钼酸钠水溶液，调节溶液中的MoO4 2-离子的浓度为0.15mol/L； Step 3, dissolving sodium molybdate in deionized water to form an aqueous solution of sodium molybdate, adjusting the concentration of MoO 4 2- ions in the solution to 0.15mol/L;
步骤四、将步骤一制得的氯化镉溶液和步骤二制得的乙酸钠溶液相混合，得到乙酸镉沉淀作为反应先驱体； Step 4, mixing the cadmium chloride solution prepared in step 1 with the sodium acetate solution prepared in step 2 to obtain cadmium acetate precipitation as a reaction precursor;
步骤五、将步骤三制得的钼酸钠溶液与步骤四制得的乙酸镉沉淀溶液相混合，然后加入到反应釜内胆中，用蒸馏水调节反应釜内胆中的反应物料体积达到反应釜内胆容积的70%； Step 5, mix the sodium molybdate solution prepared in step 3 with the cadmium acetate precipitation solution prepared in step 4, then add it to the inner tank of the reactor, adjust the volume of the reaction material in the inner tank of the reactor with distilled water to reach the reactor 70% of the inner tank volume;
步骤六、将步骤五装有反应物料的反应釜内胆置于反应釜中，密封，在110oC下，保温10小时进行水热处理，然后让反应釜自然冷却到室温，卸釜后，用蒸馏水反复洗涤反应产物，过滤、烘干后，得到钼酸镉多孔球。得到的XRD图谱见图1；透射电镜图见图2。 Step 6. Place the reactor liner with the reaction materials in step 5 in the reactor, seal it, and keep it warm for 10 hours at 110 o C for hydrothermal treatment, then let the reactor cool down to room temperature naturally. After unloading the reactor, use The reaction product was repeatedly washed with distilled water, filtered and dried to obtain porous cadmium molybdate spheres. The obtained XRD pattern is shown in FIG. 1 ; the transmission electron microscope image is shown in FIG. 2 .
图1说明本发明的钼酸镉没有杂相，纯度很高，衍射峰非常尖锐，因而说明钼酸镉晶体结晶性好；图2说明本发明的钼酸镉晶体为多孔的球状，钼酸镉多孔球的直径约为700-900nm。 Fig. 1 illustrates that the cadmium molybdate crystal of the present invention has no impurity phase, and the purity is very high, and the diffraction peak is very sharp, thereby illustrating that the cadmium molybdate crystal has good crystallinity; Fig. 2 illustrates that the cadmium molybdate crystal of the present invention is porous spherical, and the cadmium molybdate crystal is porous. The diameter of the porous spheres is about 700-900 nm.
实施例2 Example 2
步骤一、将氯化镉溶于去离子水，形成氯化镉水溶液，调节溶液中的Cd2+离子的浓度为1.65mol/L； Step 1, cadmium chloride is dissolved in deionized water to form an aqueous cadmium chloride solution, and the concentration of Cd ions in the solution is adjusted to be 1.65mol/L;
步骤二、将乙酸钠溶于去离子水，形成乙酸钠水溶液，调节溶液中的CH3COO-离子的浓度为1.65mol/L； Step 2, dissolving sodium acetate in deionized water to form an aqueous sodium acetate solution, adjusting the concentration of CH3COO- ions in the solution to 1.65mol/L;
步骤三、将钼酸钠溶于去离子水，形成钼酸钠水溶液，调节溶液中的MoO4 2-离子的浓度为1.65mol/L； Step 3, dissolving sodium molybdate in deionized water to form an aqueous solution of sodium molybdate, adjusting the concentration of MoO 4 2- ions in the solution to 1.65mol/L;
步骤四、将步骤一制得的氯化镉溶液和步骤二制得的乙酸钠溶液相混合，得到乙酸镉沉淀作为反应先驱体； Step 4, mixing the cadmium chloride solution prepared in step 1 with the sodium acetate solution prepared in step 2 to obtain cadmium acetate precipitation as a reaction precursor;
步骤五、将步骤三制得的钼酸钠溶液与步骤四制得的乙酸镉沉淀溶液相混合，然后加入到反应釜内胆中，用蒸馏水调节反应釜内胆中的反应物料体积达到反应釜内胆容积的80%； Step 5, mix the sodium molybdate solution prepared in step 3 with the cadmium acetate precipitation solution prepared in step 4, then add it to the inner tank of the reactor, adjust the volume of the reaction material in the inner tank of the reactor with distilled water to reach the reactor 80% of the inner tank volume;
步骤六、将步骤五装有反应物料的反应釜内胆置于反应釜中，密封，在160oC下，保温6小时进行水热处理，然后让反应釜自然冷却到室温，卸釜后，用蒸馏水反复洗涤反应产物，过滤、烘干后，得到钼酸镉多孔球。 Step 6. Place the reactor liner with the reaction materials in step 5 in the reactor, seal it, and keep it warm for 6 hours at 160 o C for hydrothermal treatment, then let the reactor cool down to room temperature naturally. After unloading the reactor, use The reaction product was repeatedly washed with distilled water, filtered and dried to obtain porous cadmium molybdate spheres.
实施例3 Example 3
步骤一、将氯化镉溶于去离子水，形成氯化镉水溶液，调节溶液中的Cd2+离子的浓度为3.0mol/L； Step 1, dissolving cadmium chloride in deionized water to form an aqueous cadmium chloride solution, adjusting the concentration of Cd 2+ ions in the solution to be 3.0mol/L;
步骤二、将乙酸钠溶于去离子水，形成乙酸钠水溶液，调节溶液中的CH3COO-离子的浓度为3.0mol/L； Step 2, dissolving sodium acetate in deionized water to form an aqueous sodium acetate solution, adjusting the concentration of CH3COO- ions in the solution to 3.0mol/L;
步骤三、将钼酸钠溶于去离子水，形成钼酸钠水溶液，调节溶液中的MoO4 2-离子的浓度为3.0mol/L； Step 3, dissolving sodium molybdate in deionized water to form an aqueous solution of sodium molybdate, and adjusting the concentration of MoO 4 2- ions in the solution to 3.0 mol/L;
步骤四、将步骤一制得的氯化镉溶液和步骤二制得的乙酸钠溶液相混合，得到乙酸镉沉淀作为反应先驱体； Step 4, mixing the cadmium chloride solution prepared in step 1 with the sodium acetate solution prepared in step 2 to obtain cadmium acetate precipitation as a reaction precursor;
步骤五、将步骤三制得的钼酸钠溶液与步骤四制得的乙酸镉沉淀溶液相混合，然后加入到反应釜内胆中，用蒸馏水调节反应釜内胆中的反应物料体积达到反应釜内胆容积的90%； Step 5, mix the sodium molybdate solution prepared in step 3 with the cadmium acetate precipitation solution prepared in step 4, then add it to the inner tank of the reactor, adjust the volume of the reaction material in the inner tank of the reactor with distilled water to reach the reactor 90% of the inner tank volume;
步骤六、将步骤五装有反应物料的反应釜内胆置于反应釜中，密封，在200oC下，保温3小时进行水热处理，然后让反应釜自然冷却到室温，卸釜后，用蒸馏水反复洗涤反应产物，过滤、烘干后，得到钼酸镉多孔球。 Step 6. Place the reactor liner containing the reaction materials in step 5 in the reactor, seal it, and keep it warm for 3 hours at 200 o C for hydrothermal treatment, then let the reactor cool down to room temperature naturally. After unloading the reactor, use The reaction product was repeatedly washed with distilled water, filtered and dried to obtain porous cadmium molybdate spheres.
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