KR20030032131A - Method for Preparation of Carrier for Alkali Water Using Coral Sand with Nano Inorganic Coating Layer - Google Patents
Method for Preparation of Carrier for Alkali Water Using Coral Sand with Nano Inorganic Coating Layer Download PDFInfo
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- KR20030032131A KR20030032131A KR1020010062394A KR20010062394A KR20030032131A KR 20030032131 A KR20030032131 A KR 20030032131A KR 1020010062394 A KR1020010062394 A KR 1020010062394A KR 20010062394 A KR20010062394 A KR 20010062394A KR 20030032131 A KR20030032131 A KR 20030032131A
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- coral sand
- metal
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- organic solvent
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003513 alkali Substances 0.000 title abstract description 5
- 239000011247 coating layer Substances 0.000 title description 4
- 238000002360 preparation method Methods 0.000 title description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 44
- 235000014653 Carica parviflora Nutrition 0.000 claims abstract description 30
- 239000004576 sand Substances 0.000 claims abstract description 30
- 241000243321 Cnidaria Species 0.000 claims abstract description 29
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012702 metal oxide precursor Substances 0.000 claims abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003960 organic solvent Substances 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 229960005235 piperonyl butoxide Drugs 0.000 claims abstract description 4
- FIPWRIJSWJWJAI-UHFFFAOYSA-N Butyl carbitol 6-propylpiperonyl ether Chemical compound C1=C(CCC)C(COCCOCCOCCCC)=CC2=C1OCO2 FIPWRIJSWJWJAI-UHFFFAOYSA-N 0.000 claims abstract description 3
- OGHBATFHNDZKSO-UHFFFAOYSA-N propan-2-olate Chemical compound CC(C)[O-] OGHBATFHNDZKSO-UHFFFAOYSA-N 0.000 claims abstract description 3
- HHFAWKCIHAUFRX-UHFFFAOYSA-N ethoxide Chemical compound CC[O-] HHFAWKCIHAUFRX-UHFFFAOYSA-N 0.000 claims abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 8
- 239000000908 ammonium hydroxide Substances 0.000 claims description 8
- 230000007062 hydrolysis Effects 0.000 claims description 7
- 238000006460 hydrolysis reaction Methods 0.000 claims description 7
- 239000002243 precursor Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000002105 nanoparticle Substances 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 230000003301 hydrolyzing effect Effects 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 4
- 150000004706 metal oxides Chemical class 0.000 abstract description 4
- -1 Al2O3 Chemical class 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 239000008213 purified water Substances 0.000 description 4
- 238000003980 solgel method Methods 0.000 description 4
- 238000006482 condensation reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007809 chemical reaction catalyst Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 244000132059 Carica parviflora Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008279 sol Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- WOZZOSDBXABUFO-UHFFFAOYSA-N tri(butan-2-yloxy)alumane Chemical compound [Al+3].CCC(C)[O-].CCC(C)[O-].CCC(C)[O-] WOZZOSDBXABUFO-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/031—Precipitation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
Description
본 발명은 코랄 샌드 표면에 나노 크기의 금속산화물을 코팅한 알칼리수 담체의 제조방법 및 제조된 알칼리수 담체에 관한 것으로, 보다 구체적으로는 졸-겔 방법으로 실리카, 알루미나, 또는 티타니아의 금속산화물 콜로이드 졸을 제조하고, 이를 침지하는 방법으로 코팅 막을 제조하여 pH 7-10 이 유지되도록 지속적인 알칼리 용출을 가능하게 하는 방법으로 특히, 정수기에 사용가능한 알칼리수 담체의 제조 방법에 관한 것이다.The present invention relates to a method for producing an alkaline water carrier coated with a nano-sized metal oxide on the surface of the coral sand and to an alkali water carrier prepared. More specifically, a metal oxide colloid sol of silica, alumina, or titania is prepared by a sol-gel method. The present invention relates to a method of preparing an alkaline water carrier that can be used in a water purifier, in particular, a method of preparing a coating film by preparing and immersing it to enable continuous alkali elution to maintain a pH of 7-10.
현재 정수기에 물을 정수하기 위하여 많이 적용되고 있는 공정으로는 분리효율이 높은 역 삼투 (reverse osmosis) 방식이 많이 적용되고 있지만, 이러한 방식은 물 속에 함유되어 있는 유효 미네랄이 무려 99.5%나 제거되는 단점이 있다.The reverse osmosis method, which has high separation efficiency, is widely used as a process that is widely used to purify water in water purifiers, but this method removes 99.5% of effective minerals contained in water. There is this.
따라서, 이러한 역삼투압 시스템 정수기를 사용할 경우 인체의 미네랄 발란스를 위해서 미네랄을 보충해야 하는 것이 문제로 대두되고 있다.Therefore, when the reverse osmosis system water purifier is used, it is a problem to supplement minerals for mineral balance of the human body.
이러한 문제를 해결하기 위해서 코랄샌드를 이용한 이온 용출을 통한 약알칼리성 미네랄수를 제공하는 정수기(한국특허, 공개번호 96-4231)가 개발되었으나, 이 경우 이온 용출의 속도가 급격히 감소함으로서 정수된 물의 알칼리 정도가 시간에 따라 급격히 감소하는 단점이 있다.In order to solve this problem, a water purifier (Korean Patent, Publication No. 96-4231) which provides weakly alkaline mineral water through ion dissolution using coral sand has been developed, but in this case, the rate of ion dissolution rapidly decreases the alkali of purified water. There is a disadvantage that the degree decreases rapidly with time.
따라서, 본 발명에서는 이러한 문제를 해결하기 위해서 졸-겔 방법을 이용하여 코랄 샌드 표면에 무기물 입자를 고정함으로써 코랄 샌드가 함유하는 이온의 용출 속도를 감소시킴으로서 결국, 지속적인 이온 용출의 효과를 나타내고자 한다.Therefore, in order to solve this problem, the present invention intends to reduce the elution rate of ions contained in the coral sand by fixing the inorganic particles on the surface of the coral sand by using a sol-gel method, thereby showing the effect of continuous ion dissolution. .
구체적으로 졸-겔 방법은 저온 공정으로서 Al2O3, SiO2, TiO2등 다양한 종류의 산화물들로 고 순도의 얇은 코팅 층을 제조할 수 있을 뿐만 아니라 미세한 구조적 형상의 제어가 쉽다는 우수한 특성을 지니고 있다. 그러나, 일반적으로 합성된 졸용액은 안정성 및 이 졸을 다공성 무기질 담체에 코팅하였을 때 건조 및 열처리 과정에서 나타나는 균열 발생이 큰 문제점으로 지적되고 있다.Specifically, the sol-gel method is a low-temperature process that can produce a high-purity thin coating layer made of various kinds of oxides such as Al 2 O 3 , SiO 2 , TiO 2 , and easily control fine structural shapes. It has However, generally, the synthesized sol solution has been pointed out as a big problem of stability and crack generation during drying and heat treatment when the sol is coated on the porous inorganic carrier.
결국, 본 발명은 상기와 같은 종래 기술의 한계를 극복하고자, 알칼리수 제조에 적합하도록 인체에 무해하고, 안정성이 우수한 실리카, 알루미나 및 티타니아 졸을 졸-겔 방법에 의하여 제조하고, 코랄 샌드 표면에 코팅 조건을 선정하여 안전성 및 특성이 우수하고 재현성이 있는 나노 코팅 코랄 샌드를 제조하여 이것을 알칼리수를 제조하는 담체로 개발고자 한 것이다.As a result, the present invention is to overcome the limitations of the prior art as described above, by preparing a sol-gel method, silica, alumina and titania sol, which is harmless to the human body and is excellent in stability so as to be suitable for producing alkaline water, and coated on the surface of coral sand To select the conditions, to produce nano-coated coral sand with excellent safety and characteristics and reproducibility, and to develop it as a carrier for producing alkaline water.
즉, 본 발명의 목적은 이온 용출 속도를 조절하는 코랄 샌드에 나노 단위의 Al2O3, SiO2, TiO2졸이 코팅된 알칼리수 담체의 제조방법을 제공하고자 하는 것이다.That is, an object of the present invention is to provide a method for preparing an alkaline water carrier coated with Al 2 O 3 , SiO 2 , TiO 2 sol in nano units in coral sand to control the ion dissolution rate.
또한, 본 발명은 이러한 제조방법으로 제조된 알칼리수 담체를 제공하고자 하는 것이다.In addition, the present invention is to provide an alkaline water carrier prepared by such a manufacturing method.
또 다른 본 발명의 목적은 코팅된 코랄샌드를 이용한 정수기를 제공하고자 하는 것이다.Another object of the present invention is to provide a water purifier using a coated coral sand.
도 1 은 주사 전자 현미경으로 관찰한 본 발명에 따라 코팅된 코랄 샌드 미세구조를 나타내는 확대도.1 is an enlarged view showing the coral sand microstructures coated in accordance with the present invention observed with a scanning electron microscope.
도 2는 투과 전자 현미경으로 관찰한 본 발명에 따라 제조된 코랄 샌드 입자의 미세구조를 나타내는 확대도.Figure 2 is an enlarged view showing the microstructure of the coral sand particles produced according to the present invention observed with a transmission electron microscope.
도 3은 알루미나 코팅된 코랄 샌드를 통과한 물의 시간에 따른 pH 변화.Figure 3 shows the pH change with time of water through the alumina coated coral sand.
이와 같은 목적을 달성하기 위하여, 본 발명에 따른 나노 코팅된 코랄샌드로 구성된 알칼리수 담체의 제조방법은 하기의 단계로 구성된다.In order to achieve this object, the method for preparing an alkaline water carrier composed of nano-coated coral sand according to the present invention consists of the following steps.
실리카, 알루미나 또는 티타니아 금속 산화물 전구체, 물, 유기용매를 혼합하여 나노크기의 금속 산화물 졸을 준비하는 단계 ;Preparing a nano-sized metal oxide sol by mixing silica, alumina or titania metal oxide precursor, water, and an organic solvent;
상기 졸을 코랄 샌드에 침지하는 단계 ;Immersing the sol in coral sand;
상기 침지된 코랄 샌드를 건조하는 단계 ;Drying the immersed coral sand;
및 상기 건조된 코랄 샌드에 350 내지 450 ℃의 온도로 열처리하는 단계.And heat-treating the dried coral sand at a temperature of 350 to 450 ° C.
본 발명은 기존의 세라믹 담체의 제조법과는 달리, 유기용매, 물, 금속 산화물 전구체를 적절히 혼합하고 반응촉매 등을 적절한 양으로 첨가하여 코랄 샌드에 안정성 있는 코팅을 형성할 수 있도록 입자 크기를 조절하는 방법에 의해 5 nm - 10nm의 나노 콜로이드 졸을 얻는다.The present invention, unlike the conventional method for producing a ceramic carrier, by controlling the particle size to form a stable coating in the coral sand by appropriately mixing the organic solvent, water, metal oxide precursors and the addition of a reaction catalyst, etc. The nanocolloid sol of 5 nm-10 nm is obtained by the method.
나노 콜로이드를 제조방법에 관하여 보다 구체적으로 설명하면, 본 발명에서 금속 산화물 전구체는 일반적인 금속 산화물 전구체도 가능하나, 금속이소프로폭사이드 (Metal-Isopropoxide), 금속 부톡사이드(Metal-butoxide), 금속 에톡사이드 (Metal-ethoxide) 중에서 선택되는 적어도 1종이 바람직하다. 금속전구체의 첨가량은 물/전구체의 몰비가 4 이상인 것이 바람직한데, 그 이유는 가수분해 및 응축 반응에 소요되는 물이 너무 적으면 반응이 되지 않기 때문이다.In more detail with respect to the preparation method of the nano-colloid, the metal oxide precursor in the present invention may be a general metal oxide precursor, but metal isopropoxide (Metal-Isopropoxide), metal butoxide (metal-butoxide), metal ethoxy At least one selected from the group (Metal-ethoxide) is preferable. The addition amount of the metal precursor is preferably a molar ratio of 4 or more of water / precursor, because if too little water is required for the hydrolysis and condensation reaction, the reaction will not occur.
유가 용매로는 에탄올, 메탄올, 이소프로판올 중에서 선택되는 적어도 1종 이 바람직하고, 이때, 용매 /금속전구체의 몰비는 0.5 내지 1 이 바람직하다. 가수분해를 위해서 탈이온수 (Deionized water)를 사용한다.As the valuable solvent, at least one selected from ethanol, methanol, and isopropanol is preferable, and in this case, the molar ratio of the solvent / metal precursor is preferably 0.5 to 1. Deionized water is used for hydrolysis.
특히, 실리카 코팅의 경우 반응 시약으로는 TEOS (Tetraethoxysilane), 반응 촉매제로는 수산화 암모늄 또는 염산 등을 이용하여 가수 분해 후 표면 전하 조절에 의한 해리 원리를 이용하여 나노 크기 졸을 제조한다.Particularly, in the case of silica coating, nano-size sol is prepared using the dissociation principle by surface charge control after hydrolysis using TEOS (Tetraethoxysilane) as a reaction reagent and ammonium hydroxide or hydrochloric acid as a reaction catalyst.
나노콜로이드 졸 제조 시 가수 분해 및 응축반응을 촉진하기 위하여 수산화암모늄 또는 염산을 촉매로 첨가할 수 있으며, 그 첨가량은 수산화암모늄 혹은 염산/ 금속 전구체의 몰비가 0.1-10 이 되도록 하는 것이 바람직한데, 그 이유는 촉매의 양이 너무 많으면 표면전하의 크기가 커서 졸의 안정성이 급격히 낮아지고, 너무 적으면 가수 분해 및 응축반응 속도가 느려 나노 졸 형성에 많은 시간이 소요된다.In the preparation of nanocolloid sol, ammonium hydroxide or hydrochloric acid may be added as a catalyst to promote hydrolysis and condensation reaction, and the amount is preferably such that the molar ratio of ammonium hydroxide or hydrochloric acid / metal precursor is 0.1-10. The reason is that if the amount of the catalyst is too large, the surface charge is large, and the stability of the sol is drastically lowered. If the amount is too small, the hydrolysis and condensation reaction rate is slow, and thus, it takes a long time to form the nano-sol.
본 발명의 제조방법에 의하면, 입자크기가 5-10 nm 이하의 나노 분말이 용매에 분산되어 있는 콜로이드를 제조하기에 가장 적합하다.According to the production method of the present invention, nanoparticles having a particle size of 5-10 nm or less are most suitable for preparing a colloid in which a solvent is dispersed.
제조된 콜로이드를 코랄 샌드에 코팅하기 위해서 침지 공정을 사용하였다. 형성된 코팅 층을 안정화하기 위해서 350-450℃ 에서 1시간 내지 6시간 열처리를 방법을 이용하여 나노 코팅 층을 제조하였다.An immersion process was used to coat the prepared colloid on coral sand. In order to stabilize the formed coating layer, a nano coating layer was prepared by using a heat treatment at 350-450 ° C. for 1 hour to 6 hours.
하기 실시예는 본 발명을 더욱 상세히 설명하고자 하는 것으로, 본 발명이 이에 제한되지 않는다.The following examples are intended to illustrate the present invention in more detail, but the present invention is not limited thereto.
[실시예 1]Example 1
알루미늄 부톡사이드 1 몰과 증류수 100 몰을 혼합하여 가수분해시킨 다음 80℃에서 염산 0.14 몰을 첨가하여 6시간 반응시킨 결과 얻어진 졸의 미세구조를 주사전자현미경 및 투과전자현미경으로 관찰한 사진은 각각 도 1 및 도 2와 같다. 이 투명한 졸에 코랄 샌드를 30 초 동안 유지하여 모세기공을 통한 모세관으로 코팅 층을 형성시키고, 건조기에서 80℃로 24시간 건조한 다음 400℃에서 2시간 열처리하여 얻어진 나노 코팅 코랄 샌드롤 정수한 결과 pH와 시간에 대한 변화는 도 3과 같다. 따라서, 본 발명의 알칼리수 담체를 이용하여 통수한 경우 pH가 7이상으로 유지되어 알칼리 수를 제조할 수 있음을 알수 있다.Hydrolysis was performed by mixing 1 mol of aluminum butoxide and 100 mol of distilled water, and then reacting for 6 hours by adding 0.14 mol of hydrochloric acid at 80 ° C. to examine the microstructure of the obtained sol by scanning electron microscope and transmission electron microscope. 1 and 2. Coral sand was kept in this transparent sol for 30 seconds to form a coating layer with a capillary through capillary pores, dried at 80 ° C. for 24 hours in a drier, and heat-treated at 400 ° C. for 2 hours to obtain purified water. The change with time is as shown in FIG. Therefore, it can be seen that when the water is passed using the alkaline water carrier of the present invention, the pH can be maintained at 7 or higher to produce alkaline water.
[실시예 2]Example 2
TEOS(Tetraethyl Orthosilicate) 1.76 ml, 에탄올 108 ml, 물 0.56 ml, 수산화암모늄 4ml를 상온에서 2시간 혼합하여 코랄 샌드를 적시고 난 다음 100℃에서 24시간 건조한 다음 370℃에서 2시간 열처리 한 담체를 정수 통과하면 10 분 후에는 pH가 9.11에서 120분 지나면 통수한 물의 pH가 8.90으로 변화하였다.1.76 ml of TEOS (Tetraethyl Orthosilicate), 108 ml of ethanol, 0.56 ml of water, and 4 ml of ammonium hydroxide were mixed at room temperature for 2 hours, soaked with coral sand, dried at 100 ° C for 24 hours, and then passed through a carrier after heat treatment at 370 ° C for 2 hours. After 10 minutes, the pH of the water passed through changed from 9.11 to 120 minutes to 8.90.
[실시예 3]Example 3
TEOS(Tetraethyl Orthosilicate) 1.76 ml, 에탄올 108 ml, H2O 0.56 ml, 수산화암모늄 4ml를 상온에서 2시간 혼합하여 코랄 샌드를 적시고 난 다음 100℃에서 24시간 건조한 다음 390℃에서 2시간 열처리 한 담체를 정수 통과하면 10 분 후에는 pH가 8.81에서 120분 지나면 통수한 물의 pH 가 7.46으로 변화하였다.1.76 ml of TEOS (Tetraethyl Orthosilicate), 108 ml of ethanol, 0.56 ml of H 2 O, and 4 ml of ammonium hydroxide were mixed at room temperature for 2 hours, soaked with coral sand, dried at 100 ° C for 24 hours, and then heated at 390 ° C for 2 hours. After 10 minutes, the pH of the water passed through the water changed to 7.46 after 120 minutes.
[실시예 4]Example 4
TEOS(Tetraethyl Orthosilicate) 1.76 ml, 에탄올 108 ml, H2O 0.56 ml, 수산화암모늄 4ml를 상온에서 2시간 혼합하여 코랄 샌드를 적시고 난 다음 100℃에서 24시간 건조한 다음 410℃에서 2시간 열처리 한 담체를 정수 통과하면 10 분 후에는 pH가 9.36에서 120분 지나면 통수한 물의 pH가 8.99로 변화하였다.1.76 ml of TEOS (Tetraethyl Orthosilicate), 108 ml of ethanol, 0.56 ml of H 2 O, and 4 ml of ammonium hydroxide were mixed at room temperature for 2 hours, soaked with coral sand, dried at 100 ° C for 24 hours, and then heat-treated at 410 ° C for 2 hours. After passing through the purified water, after 10 minutes, the pH of the water passed through changed from 9.36 to 120 minutes to 8.99.
[실시예 5]Example 5
TEOS(Tetraethyl Orthosilicate) 1.76 ml, 에탄올 108 ml, H2O 0.56 ml, 수산화암모늄 4ml를 상온에서 2시간 혼합하여 코랄 샌드를 적시고 난 다음 100℃에서 24시간 건조한 다음 430℃에서 2시간 열처리 한 담체를 정수 통과하면 10 분 후에는 pH가 9.42에서 120분 지나면 통수한 물의 pH가 8.15로 변화하였다.1.76 ml of TEOS (Tetraethyl Orthosilicate), 108 ml of ethanol, 0.56 ml of H 2 O, and 4 ml of ammonium hydroxide were mixed at room temperature for 2 hours, soaked with coral sand, dried at 100 ° C for 24 hours, and then heated at 430 ° C for 2 hours. After passing through the purified water, after 10 minutes, the pH of the water passed through changed from 9.42 to 120 minutes to 8.15.
본 발명에 의하여 나노 무기물 코팅 코랄샌드를 이용하여 알칼리수 담체를 제조함으로서, 이를 이용하여 통수 시 미네랄이 지속적으로 용출되어 pH 7-10의 알칼리수를 유지할 수 있는 효과가 있는 바, 정수기 등에 적용할 수 있는 가능성을 제시하고 있다.By preparing an alkaline water carrier using the nano-organic coated coral sand according to the present invention, the mineral is continuously eluted when water is passed using this, it is effective to maintain the alkaline water of pH 7-10 bar, which can be applied to water purifiers, etc. The possibilities are presented.
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| CN110250083A (en) * | 2019-05-06 | 2019-09-20 | 中国计量大学 | A kind of seawater fish jar with purification of water quality ability makes scape stone and preparation method thereof |
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| KR900017655A (en) * | 1989-05-31 | 1990-12-19 | 이헌조 | Manufacturing method of sintered deodorant |
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| CN110250083A (en) * | 2019-05-06 | 2019-09-20 | 中国计量大学 | A kind of seawater fish jar with purification of water quality ability makes scape stone and preparation method thereof |
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