一种新型的阳极材料及其制备方法、电解产生臭氧的装置Novel anode material, preparation method thereof and device for generating ozone by electrolysis
技术领域Technical field
本发明涉及材料制备领域,具体涉及一种新型的阳极材料及其制备方法,以及电解产生臭氧的装置。The invention relates to the field of material preparation, in particular to a novel anode material and a preparation method thereof, and a device for electrolytically generating ozone.
背景技术Background technique
臭氧O
3又被称为超氧,属于氧气O
2的同素异形体。在常温下,臭氧的半衰期为15~30min(分钟),导致臭氧的常规储存困难并且成本较高。同时,臭氧具有极强的氧化性和易分解性,能够作为污水净化剂、脱色剂、消毒剂等使用。臭氧杀菌消毒的速度快、效果好,臭氧本身还原生成氧气。因此,臭氧的使用已被广泛认可,是世界公认的绿色消毒剂。
Ozone O 3 is also known as superoxide and belongs to the allotrope of oxygen O 2 . At normal temperature, the half-life of ozone is 15 to 30 minutes (minutes), resulting in difficulty in conventional storage of ozone and high cost. At the same time, ozone is highly oxidizing and easily decomposable, and can be used as a sewage purifying agent, a decolorizing agent, a disinfectant, and the like. Ozone sterilization is fast and effective, and ozone itself reduces oxygen. Therefore, the use of ozone has been widely recognized and is recognized as a green disinfectant in the world.
目前,生产臭氧常用的方法有电晕法、电解法、紫外线法、核辐射法。其中,电晕法的设备投资较高,运行费用高,所生产的臭氧浓度低;紫外线法耗能高,生成臭氧的浓度低,不适用于大量臭氧的生产;核辐射法投资大、不安全,使用频率很低。At present, the commonly used methods for producing ozone are corona method, electrolysis method, ultraviolet method, and nuclear radiation method. Among them, the corona method has high equipment investment, high operating cost, low ozone concentration produced by the ultraviolet method, high energy consumption by ultraviolet method, low concentration of ozone generation, and is not suitable for the production of large amount of ozone; the nuclear radiation method has large investment and is unsafe. The frequency of use is very low.
电解法生产臭氧主要包括电解空气和电解纯水。电解空气生产臭氧的过程会产生NO
x等有毒物质,所需交流电压较高,电解效率低,臭氧入水困难,设备占地面积大,使用成本极高;电解纯水单位产生的臭氧效率最高,电解过程是以固态的贵金属聚合物为电解质,结合阳离子交换模式,通过低压电解的方式获得臭氧,但是该工艺中,控制系统比较复杂,电解效率低,臭氧入水困难,使用成本较高。
The production of ozone by electrolysis mainly includes electrolytic air and electrolytic pure water. Electrolytic production of ozone air can NO x production process and other toxic substances, the desired high AC voltage, the electrolysis efficiency is low, difficulties ozone into the water, a large floor space, high cost; the most efficient ozone generated by water electrolysis unit, The electrolysis process uses a solid noble metal polymer as an electrolyte, and combines a cation exchange mode to obtain ozone by means of low-pressure electrolysis. However, in this process, the control system is relatively complicated, the electrolysis efficiency is low, ozone is difficult to enter the water, and the use cost is high.
因此,臭氧的制备和应用已受到国内外学者的广泛关注。Therefore, the preparation and application of ozone has been widely concerned by scholars at home and abroad.
发明内容Summary of the invention
鉴于上述现有技术中存在的问题,本发明旨在提供一种新型的阳极材料及其制备方法,以及包括该阳极材料的电解液,该电解液能够通过电解产生臭氧,本发明中,制备新型的阳极材料的方法简便、易于操作,将其用于生产臭氧时,效率较高、节省能源,且无有毒有害物质产生。In view of the above problems in the prior art, the present invention aims to provide a novel anode material and a preparation method thereof, and an electrolyte comprising the anode material, which can generate ozone by electrolysis, and in the present invention, a novel preparation The method of the anode material is simple and easy to operate, and when it is used for the production of ozone, the efficiency is high, energy is saved, and no toxic and harmful substances are produced.
本发明提出了一种新型的阳极材料的制备方法,所述阳极材料由含Sn悬浮液经热解、焙烧处理附着在阳极板上,包括如下步骤:The invention provides a novel preparation method of an anode material, wherein the anode material is attached to the anode plate by pyrolysis and roasting treatment of the Sn-containing suspension, and comprises the following steps:
A、含Sn悬浮液的制备:准备原料:SnC
2O
4500~1500重量份、Sb
2O
35~8重量份、Ni(CH
3COO)
2·4H
2O1~3重量份;将SnC
2O
4加入到反应釜中,向所述反应釜中加入至少150重量份的水并搅拌均匀;将Sb
2O
3加入到所述反应釜中,搅拌并进行加热使得混合均匀,得到混合料;将Ni(CH
3COO)
2·4H
2O加入所述混合料中,然后向所述反应釜中通入氧气,并进行加热、搅拌,直至所述反应釜中物料呈悬浮状态后停止加热,所述反应釜内的物料沉淀,待沉淀完全后,取上层悬浮液,即得到所述含Sn悬浮液;
A. Preparation of Sn-containing suspension: Preparation of raw materials: 500 to 1500 parts by weight of SnC 2 O 4 , 5 to 8 parts by weight of Sb 2 O 3 , and Ni to 3 parts by weight of Ni(CH 3 COO) 2 · 4H 2 O 1 ; 2 O 4 is added to the reaction vessel, at least 150 parts by weight of water is added to the reaction vessel and stirred uniformly; Sb 2 O 3 is added to the reaction vessel, stirred and heated to make the mixture uniform, to obtain a mixture. Adding Ni(CH 3 COO) 2 ·4H 2 O to the mixture, then introducing oxygen into the reaction vessel, heating and stirring until the material in the reactor is suspended and then heating is stopped. The material in the reaction vessel is precipitated, and after the precipitation is completed, the upper suspension is taken to obtain the Sn-containing suspension;
B、热解处理:将所述含Sn悬浮液涂覆在所述阳极板上,在400~600℃温度下进行热解,并重复所述涂覆-热解处理过程7~9次,形成涂覆膜;B. Pyrolysis treatment: coating the Sn-containing suspension on the anode plate, pyrolyzing at a temperature of 400 to 600 ° C, and repeating the coating-pyrolysis treatment 7 to 9 times to form Coating film;
C、烧结处理:对所述涂覆膜进行烧结处理,所述烧结处理过程的温度控制为500~650℃,所述烧结时间控制为60~120min。C. Sintering treatment: The coating film is subjected to a sintering treatment, the temperature of the sintering treatment process is controlled to be 500 to 650 ° C, and the sintering time is controlled to be 60 to 120 min.
进一步地,所述阳极板由耐腐蚀、耐高温的金属制备;优选的,所述阳极板由钛金属制备。Further, the anode plate is prepared from a corrosion-resistant, high-temperature resistant metal; preferably, the anode plate is made of titanium metal.
作为本发明优选的实施方案,向所述反应釜中加入去离子水。As a preferred embodiment of the invention, deionized water is added to the kettle.
作为本发明优选的实施方案,所述SnC
2O
4取550~900重量份,所述Sb
2O
3取5~8重量份,所述Ni(CH
3COO)
2·4H
2O取1~3重量份。
As a preferred embodiment of the present invention, the SnC 2 O 4 is 550 to 900 parts by weight, the Sb 2 O 3 is 5 to 8 parts by weight, and the Ni(CH 3 COO) 2 · 4H 2 O is 1 to 1 3 parts by weight.
作为本发明优选的实施方案,所述通入氧气的流量为8~12L/min。As a preferred embodiment of the present invention, the flow rate of the oxygen gas is 8 to 12 L/min.
进一步地,控制所述加热过程的温度为50~60℃,所述加热的时间为1~2h(小时)。Further, the temperature for controlling the heating process is 50 to 60 ° C, and the heating time is 1 to 2 hours (hours).
本发明还提出了一种新型的阳极材料,所述阳极材料是由上述制备方 法制备得到的。The present invention also proposes a novel anode material which is prepared by the above preparation method.
本发明还提出了一种电解产生臭氧的装置,包括阳极材料、阴极材料、电源、电解液,所述阳极材料与所述电源的正极通过导线连接,所述阴极材料与所述电源的负极通过导线连接,所述阳极材料和所述阴极材料均置于所述电解液中,所述阳极材料为上述的新型的阳极材料。The present invention also provides an apparatus for electrolytically generating ozone, comprising an anode material, a cathode material, a power source, and an electrolyte, wherein the anode material is connected to a positive electrode of the power source through a wire, and the cathode material and a negative electrode of the power source pass A wire is connected, and both the anode material and the cathode material are placed in the electrolyte, and the anode material is the novel anode material described above.
作为本发明优选的实施方案,所述阴极材料选用不锈钢板。As a preferred embodiment of the invention, the cathode material is selected from stainless steel sheets.
进一步地,所述电源为直流电源。Further, the power source is a DC power source.
本发明提出的新型的阳极材料制备方法简便,易于操作,无需引入复杂的设备。该阳极材料用于电解臭氧的装置时,可有效促进臭氧的产生,且过程中无有毒有害物质的产生。The novel anode material preparation method proposed by the invention is simple, easy to operate, and does not need to introduce complicated equipment. When the anode material is used for a device for electrolyzing ozone, the generation of ozone can be effectively promoted, and no toxic and harmful substances are generated in the process.
本发明提出电解产生臭氧的装置,利用含Sn悬浮液在阳极板上形成催化剂膜层,用于促进臭氧的产生。该电解装置可直接用于处理工业污水,节能环保,处理效率高,设备运行易操控,成本低。The present invention proposes an apparatus for electrolytically generating ozone, which uses a Sn-containing suspension to form a catalyst film layer on an anode plate for promoting the generation of ozone. The electrolyzing device can be directly used for treating industrial sewage, energy saving and environmental protection, high processing efficiency, easy operation and low cost of equipment operation.
附图说明DRAWINGS
图1为本发明提出的含Sn悬浮液的制备方法流程示意图。1 is a schematic flow chart of a preparation method of a Sn-containing suspension proposed by the present invention.
具体实施方式Detailed ways
以下结合附图和实施例,对本发明的具体实施方式进行更加详细的说明,以便能够更好地理解本发明的方案以及其各个方面的优点。然而,以下描述的具体实施方式和实施例仅是说明的目的,而不是对本发明的限制。The embodiments of the present invention will be described in more detail in conjunction with the accompanying drawings and embodiments in order to provide a better understanding of the embodiments of the invention and the advantages thereof. However, the specific embodiments and examples described below are illustrative only and not limiting of the invention.
在此,还需要说明的是,为了避免因不必要的细节而模糊了本发明,在附图中仅仅示出了与根据本发明的方案密切相关的结构和/或处理步骤,而省略了与本发明关系不大的其他细节。In this context, it is also to be noted that in order to avoid obscuring the invention by unnecessary detail, only the structures and/or processing steps closely related to the solution according to the invention are shown in the drawings, and the Other details that are not relevant to the present invention.
最后,还需要说明的是,术语“包括”、“包含”或者其任何其他 变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。Finally, it is also to be understood that the terms "including", "comprising" or "comprising" or "the" It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, item, or device.
首先,本发明的目的之一是提出一种新型的阳极材料的制备方法。本发明的阳极材料由含Sn悬浮液经热解、焙烧处理后附着在阳极板上,具体的包括如下步骤:First, one of the objects of the present invention is to propose a novel method for preparing an anode material. The anode material of the present invention is attached to the anode plate by pyrolysis and calcination treatment of the Sn-containing suspension, and specifically includes the following steps:
(1)含Sn悬浮液的制备(1) Preparation of Sn-containing suspension
如图1所示,具体的包括如下过程:As shown in Figure 1, the specific process includes the following:
①准备原料:SnC
2O
4500~1500重量份、Sb
2O
35~8重量份、Ni(CH
3COO)
2·4H
2O1~3重量份。
1 Preparation of raw materials: 500 to 1500 parts by weight of SnC 2 O 4 , 5 to 8 parts by weight of Sb 2 O 3 , and 1 to 3 parts by weight of Ni(CH 3 COO) 2 ·4H 2 O.
本发明制备的含Sn悬浮液主要包括Sn元素、Sb元素、Ni元素,并且,Sn元素、Sb元素、Ni元素的存在形式并不限于本发明的制备方法中采取的三种化合物。在本发明的其它一些实施方案中,Ni(CH
3COO)
2·4H
2O还能够选用其它含Ni的正二价化合物;Sb
2O
3还能够选用其它含Sb的正三价化合物;SnC
2O
4还能够选用其它含Sn的正二价化合物。
The Sn-containing suspension prepared by the present invention mainly includes a Sn element, an Sb element, and a Ni element, and the existence form of the Sn element, the Sb element, and the Ni element is not limited to the three compounds taken in the production method of the present invention. In other embodiments of the present invention, Ni(CH 3 COO) 2 ·4H 2 O can also be selected from other positive divalent compounds containing Ni; Sb 2 O 3 can also be selected from other positive trivalent compounds containing Sb; SnC 2 O 4 It is also possible to use other positive divalent compounds containing Sn.
并且,作为本发明优选的实施方案,SnC
2O
4称取550~900重量份,Sb
2O
3称取5~8重量份,Ni(CH
3COO)
2·4H
2O称取1~3重量份。
Further, as a preferred embodiment of the present invention, SnC 2 O 4 is weighed 550 to 900 parts by weight, Sb 2 O 3 is weighed 5 to 8 parts by weight, and Ni(CH 3 COO) 2 · 4H 2 O is weighed 1 to 3 Parts by weight.
②将准备好的SnC
2O
4加入到反应釜中,向反应釜中加入至少150重量份的水并搅拌均匀。优选的,加入水的量为150~450重量份。其中,搅拌的时间优选控制为3~5min。更优选的,向反应釜中加入去离子水。
2 The prepared SnC 2 O 4 was added to the reaction vessel, and at least 150 parts by weight of water was added to the reaction vessel and stirred well. Preferably, the amount of water added is from 150 to 450 parts by weight. Among them, the stirring time is preferably controlled to 3 to 5 minutes. More preferably, deionized water is added to the kettle.
③将准备好的Sb
2O
3加入到上述的反应釜中,继续搅拌3~5min,并对反应釜中的物料进行缓慢加热至温度为50~60℃,使得SnC
2O
4和Sb
2O
3混合均匀,得到混合料。
3 Add the prepared Sb 2 O 3 to the above reaction kettle, continue stirring for 3 to 5 minutes, and slowly heat the material in the reactor to a temperature of 50-60 ° C, so that SnC 2 O 4 and Sb 2 O 3 Mix well to obtain a mixture.
④向上述混合料中加入准备好的Ni(CH
3COO)
2·4H
2O,并继续搅拌。然后,向反应釜中通入氧气,并进行加热、搅拌处理,加热至反应釜中物料呈悬浮状态后停止加热,使反应釜内物料自然冷却,并静置沉淀,待沉淀完全后,取上层悬浮液,即得到含Sn悬浮液。
4 Add the prepared Ni(CH 3 COO) 2 · 4H 2 O to the above mixture and continue stirring. Then, oxygen is introduced into the reaction vessel, and heating and stirring treatment are performed. After heating, the material in the reaction vessel is suspended, the heating is stopped, the material in the reaction vessel is naturally cooled, and the precipitate is allowed to stand. After the precipitation is completed, the upper layer is taken. The suspension is obtained as a suspension containing Sn.
其中,悬浮液是指固体颗粒分散于液体中,因布朗运动而不能很快下沉,此时固体分散相与液体的混合物称为悬浮液。Among them, the suspension means that the solid particles are dispersed in the liquid and cannot sink quickly due to Brownian motion, and the mixture of the solid dispersed phase and the liquid at this time is called a suspension.
作为本发明优选的实施方案,向反应釜中通入氧气的流量为8~12L/min。反应釜中通入氧气后,进行加热处理的温度为50~60℃,并使反应釜内温度维持在50~60℃,持续通入氧气并搅拌。优选的,加热时间控制为1~2h。As a preferred embodiment of the present invention, the flow rate of oxygen into the reactor is 8 to 12 L/min. After the oxygen is introduced into the reaction vessel, the temperature at which the heat treatment is carried out is 50 to 60 ° C, and the temperature in the reaction vessel is maintained at 50 to 60 ° C, and oxygen gas is continuously supplied and stirred. Preferably, the heating time is controlled to be 1 to 2 hours.
沉淀过程的时间控制为6~8h,能够使反应釜内的物料沉淀完全。The time of the precipitation process is controlled to 6-8 hours, which can completely precipitate the material in the reactor.
本发明制备的含Sn悬浮液在0~8℃的环境下可保存30天。The Sn-containing suspension prepared by the present invention can be stored for 30 days in an environment of 0-8 °C.
(2)热解处理过程(2) Pyrolysis process
将上述制备得到的含Sn悬浮液涂覆在阳极板上,热解温度控制为400~600℃,并重复涂覆-热解处理过程7~9次,使得含Sn悬浮液能够在阳极板上充分覆盖,形成均匀的涂覆膜。The Sn-containing suspension prepared above is coated on an anode plate, the pyrolysis temperature is controlled to 400 to 600 ° C, and the coating-pyrolysis process is repeated 7 to 9 times, so that the Sn-containing suspension can be on the anode plate. Cover it sufficiently to form a uniform coating film.
(3)烧结处理过程(3) Sintering process
对上述步骤得到的涂覆膜进行烧结处理,使得阳极板上形成稳固、均匀的催化剂膜层。其中,本步骤的烧结温度控制为500~650℃,烧结时间控制为60~120min。The coating film obtained in the above step is subjected to a sintering treatment to form a stable and uniform catalyst film layer on the anode plate. The sintering temperature in this step is controlled to be 500 to 650 ° C, and the sintering time is controlled to be 60 to 120 min.
作为本发明优选的实施方式,阳极板由耐腐蚀、耐高温的导电材料制备,比如钛金属、石墨、铂金属等。更优选的,阳极板选用钛金属制备,制作成本更低,性能更优越。As a preferred embodiment of the present invention, the anode plate is made of a corrosion-resistant, high-temperature resistant conductive material such as titanium metal, graphite, platinum metal or the like. More preferably, the anode plate is made of titanium metal, which has lower manufacturing cost and superior performance.
本发明还提出了一种电解产生臭氧的装置,即电解装置,该装置能够利用催化电解法(Catalysis and Electrolysis)来制备臭氧。催化电解法是指,通过在电解装置中添加适宜的催化剂,有效促进电解反应进行的过程。The present invention also proposes an apparatus for electrolytically generating ozone, that is, an electrolysis apparatus capable of producing ozone by catalytic electrolysis (Catalysis and Electrolysis). The catalytic electrolysis method is a process which effectively promotes the progress of the electrolysis reaction by adding a suitable catalyst to the electrolysis device.
本发明的电解装置包括阳极材料、阴极材料、电源、电解液。电源为直流电源。其中,阳极材料与电源的正极通过导线连接,阴极材料与电源的负极通过导线连接,阳极材料和阴极材料均置于电解液中。阳极材料和阴极材料之间用绝缘材料隔开。并且,该电解装置中的阳极材料由上述制备方法制备得到。The electrolysis device of the present invention comprises an anode material, a cathode material, a power source, and an electrolyte. The power supply is a DC power supply. Wherein, the anode material is connected to the anode of the power source through a wire, the cathode material is connected to the cathode of the power source through a wire, and the anode material and the cathode material are both placed in the electrolyte. The anode material and the cathode material are separated by an insulating material. Further, the anode material in the electrolysis device is prepared by the above preparation method.
其中,阴极材料由耐腐蚀的导电材料制备而成。优选的,阴极材料选用不锈钢板。Among them, the cathode material is prepared from a corrosion-resistant conductive material. Preferably, the cathode material is a stainless steel plate.
该电解装置中,电解液可选用各种非强酸、非强碱的水体进行电解。作为本发明优选的实施方式,当该电解装置通入直流电后,阳极材料上发生氧化反应电解产生的臭氧,能够直接作用于电解液水体,利用臭氧的强氧化性,实现水体中污染的脱除。In the electrolysis device, the electrolyte can be electrolyzed by using various non-strong acid and non-strong alkali water bodies. As a preferred embodiment of the present invention, when the electrolysis device is supplied with direct current, the ozone generated by the oxidation reaction on the anode material can directly act on the electrolyte water body, and the strong oxidation of the ozone is utilized to achieve the removal of the pollution in the water body. .
当电源通电后,水体中的阳离子移向阴极,吸收电子,发生还原作用,生成新物质;水体中的阴离子移向阳极,放出电子,发生氧化作用,亦生成新物质。When the power supply is energized, the cations in the water move toward the cathode, absorb electrons, and reduce and generate new substances; the anions in the water move toward the anode, emit electrons, generate oxidation, and generate new substances.
具体的,由于水体中含有少量的氧气(O
2),本发明的电解装置中阳极材料附近发生的氧化反应和阴极材料附近发生的还原反应主要为:
Specifically, since the water body contains a small amount of oxygen (O 2 ), the oxidation reaction occurring in the vicinity of the anode material and the reduction reaction occurring in the vicinity of the cathode material in the electrolysis device of the present invention are mainly as follows:
阳极反应:Anode reaction:
3H
2O-6e
-=O
3+6H
+
3H 2 O-6e - =O 3 +6H +
阴极反应:Cathodic reaction:
3O
2+6H
++6e
-=3H
2O
2
3O 2 +6H + +6e - =3H 2 O 2
总的电解反应:3O
2+3H
2O=O
3+3H
2O
2
Total electrolytic reaction: 3O 2 +3H 2 O=O 3 +3H 2 O 2
在此反应过程中,阴极反应所需的氧气来自于水体中不断溶解的氧。阴极反应所需的H+来自于污水和阳极反应产生的H+。在本发明制备的含Sn悬浮液的催化下,电解过程中不会产生有害气体。并且,电解反应产生的双氧水(H
2O
2)作为一种绿色氧化剂,易分解为水和氧气,对环境和人体无任何伤害。
During this reaction, the oxygen required for the cathodic reaction is derived from the constantly dissolved oxygen in the water. The H+ required for the cathodic reaction comes from the H+ produced by the sewage and anode reactions. Under the catalysis of the Sn-containing suspension prepared by the present invention, no harmful gas is generated during the electrolysis. Moreover, the hydrogen peroxide (H 2 O 2 ) produced by the electrolysis reaction is easily decomposed into water and oxygen as a green oxidant, and does not cause any harm to the environment and the human body.
阳极材料电解产生的臭氧不但可以分解不易降解的聚氯联苯、苯酚、萘等多种芳烃和不饱和链烃,而且对亲水染料的脱色效果更明显,可用于处理工业污水。The ozone generated by the electrolysis of the anode material can not only decompose various aromatic hydrocarbons and unsaturated chain hydrocarbons such as polychlorinated biphenyls, phenols, naphthalenes, etc., but also has a more decolorizing effect on hydrophilic dyes, and can be used for treating industrial sewage.
实施例1Example 1
称取900g SnC
2O
4放入反应釜中,加入200g去离子水搅拌3min,接着向反应釜中加入5gSb
2O
3,继续搅拌3min,然后对反应釜进行加热至釜内温度为50℃,再加入1gNi(CH
3COO)
2·4H
2O继续搅拌。
Weigh 900g of SnC 2 O 4 into the reaction kettle, add 200g of deionized water and stir for 3min, then add 5g of Sb 2 O 3 to the reaction kettle, continue stirring for 3min, then heat the reaction vessel to a temperature of 50 ° C in the kettle. Further stirring was carried out by adding 1 g of Ni(CH 3 COO) 2 · 4H 2 O.
向上述反应釜内按照10L/min的流量通入氧气,加热维持反应釜内温度为50℃,持续通氧并搅拌。1.5h后停止对反应釜进行加热,使反应釜自然冷却,并沉淀6h,取沉淀后的上层悬浮液,得到含Sn悬浮液。Oxygen gas was introduced into the reaction vessel at a flow rate of 10 L/min, and the temperature in the reaction vessel was maintained at 50 ° C by heating, and oxygen was continuously supplied and stirred. After 1.5 h, the reaction vessel was stopped to be heated, the reaction vessel was naturally cooled, and precipitated for 6 hours, and the precipitated upper suspension was taken to obtain a Sn-containing suspension.
将上述含Sn悬浮液涂覆在钛板上,并在500℃进行热解,重复该涂覆-热解过程8次,然后对附着有涂覆膜的钛板进行烧结,在600℃下烧结80min,得到的钛板上形成均匀的催化剂膜层。The above Sn-containing suspension was coated on a titanium plate and pyrolyzed at 500 ° C. The coating-pyrolysis process was repeated 8 times, and then the titanium plate to which the coating film was attached was sintered and sintered at 600 ° C. At 80 min, a uniform catalyst film layer was formed on the obtained titanium plate.
上述涂覆有催化剂膜层的钛板作为阳极,不锈钢板作为阴极。钛板通过导线连接电源的正极,不锈钢通过导线连接电源的负极,并将钛板和不锈钢板均置于待处理的苯酚废水中,电源通电,阳极和阴极附近分别发生氧化和还原反应,实现废水的净化排污处理。The titanium plate coated with the catalyst film layer described above serves as an anode, and the stainless steel plate serves as a cathode. The titanium plate is connected to the positive electrode of the power source through a wire, the stainless steel is connected to the negative electrode of the power source through a wire, and the titanium plate and the stainless steel plate are placed in the phenol wastewater to be treated, the power source is energized, and oxidation and reduction reactions respectively occur near the anode and the cathode to realize the wastewater. Purification and sewage treatment.
本实施例的处理效果见表1。The processing effect of this embodiment is shown in Table 1.
表1实施例1电解装置处理苯酚废水的效果Table 1 Effect of the electrolysis unit of Example 1 on the treatment of phenol wastewater
项目project
|
臭氧ozone
|
处理前苯酚Pre-treatment phenol
|
处理后苯酚Phenol after treatment
|
浓度(mg/L)Concentration (mg/L)
|
3.53.5
|
1010
|
<0.1<0.1
|
其中,臭氧浓度的检测方法采用的是化学碘量法。苯酚浓度的检测方法采用的是溴酸盐法。Among them, the method for detecting the ozone concentration is a chemical iodometric method. The method for detecting the concentration of phenol is the bromate method.
实施例2Example 2
称取1200gSnC
2O
4放入反应釜中,加入400g去离子水搅拌3min,接着向反应釜中加入8gSb
2O
3,继续搅拌3min,然后对反应釜进行加热至釜内温度为50℃,再加入2gNi(CH
3COO)
2·4H
2O继续搅拌。
Weigh 1200g of SnC 2 O 4 into the reaction kettle, add 400g of deionized water and stir for 3min, then add 8g of Sb 2 O 3 to the reaction kettle, continue to stir for 3min, then heat the reactor to a temperature of 50 ° C, then Stirring was continued by adding 2 g of Ni(CH 3 COO) 2 · 4H 2 O.
向上述反应釜内按照8L/min的流量通入氧气,加热维持反应釜内温度为50℃,持续通氧并搅拌。1.5h后停止对反应釜进行加热,使反应釜自然冷却,并沉淀6h,取沉淀后的上层悬浮液,得到含Sn悬浮液。Oxygen gas was introduced into the reaction vessel at a flow rate of 8 L/min, and the temperature in the reaction vessel was maintained at 50 ° C by heating, and oxygen was continuously supplied and stirred. After 1.5 h, the reaction vessel was stopped to be heated, the reaction vessel was naturally cooled, and precipitated for 6 hours, and the precipitated upper suspension was taken to obtain a Sn-containing suspension.
将上述含Sn悬浮液涂覆在钛板上,并在550℃进行热解,重复该涂覆-热解过程8次,然后对附着有涂覆膜的钛板进行烧结,在650℃下烧结80min,得到的钛板上形成均匀的催化剂膜层。The above Sn-containing suspension was coated on a titanium plate and pyrolyzed at 550 ° C. The coating-pyrolysis process was repeated 8 times, and then the titanium plate to which the coating film was attached was sintered and sintered at 650 ° C. At 80 min, a uniform catalyst film layer was formed on the obtained titanium plate.
上述涂覆有催化剂膜层的钛板作为阳极,不锈钢板作为阴极。钛板通过导线连接电源的正极,不锈钢通过导线连接电源的负极,并将钛板和不锈钢板均置于待处理的苯酚废水中,电源通电,阳极和阴极附近分别发生氧化和还原反应,实现废水的净化排污处理。The titanium plate coated with the catalyst film layer described above serves as an anode, and the stainless steel plate serves as a cathode. The titanium plate is connected to the positive electrode of the power source through a wire, the stainless steel is connected to the negative electrode of the power source through a wire, and the titanium plate and the stainless steel plate are placed in the phenol wastewater to be treated, the power source is energized, and oxidation and reduction reactions respectively occur near the anode and the cathode to realize the wastewater. Purification and sewage treatment.
本实施例的处理效果见表2。The processing effect of this embodiment is shown in Table 2.
表2实施例2电解装置处理苯酚废水的效果Table 2 Example 2 Effect of electrolysis unit on phenol wastewater treatment
项目project
|
臭氧ozone
|
处理前苯酚Pre-treatment phenol
|
处理后苯酚Phenol after treatment
|
浓度(mg/L)Concentration (mg/L)
|
44
|
88
|
<0.1<0.1
|
其中,臭氧浓度的检测方法采用的是化学碘量法。苯酚浓度的检测方法采用的是溴酸盐法。Among them, the method for detecting the ozone concentration is a chemical iodometric method. The method for detecting the concentration of phenol is the bromate method.
实施例3Example 3
称取550g SnC
2O
4放入反应釜中,加入160g去离子水搅拌3min,接着向反应釜中加入5gSb
2O
3,继续搅拌3min,然后对反应釜进行加热至釜内温度为50℃,再加入3gNi(CH
3COO)
2·4H
2O继续搅拌。
Weigh 550 g of SnC 2 O 4 into the reaction vessel, add 160 g of deionized water and stir for 3 min, then add 5 g of Sb 2 O 3 to the reaction vessel, continue stirring for 3 min, and then heat the reaction vessel to a temperature of 50 ° C in the autoclave. Stirring was further carried out by adding 3 g of Ni(CH 3 COO) 2 · 4H 2 O.
向上述反应釜内按照12L/min的流量通入氧气,加热维持反应釜内温度为50℃,持续通氧并搅拌。1.5h后停止对反应釜进行加热,使反应釜自然冷却,并沉淀6h,取沉淀后的上层悬浮液,得到含Sn悬浮液。Oxygen gas was introduced into the reaction vessel at a flow rate of 12 L/min, and the temperature in the reaction vessel was maintained at 50 ° C by heating, and oxygen was continuously supplied and stirred. After 1.5 h, the reaction vessel was stopped to be heated, the reaction vessel was naturally cooled, and precipitated for 6 hours, and the precipitated upper suspension was taken to obtain a Sn-containing suspension.
将上述含Sn悬浮液涂覆在钛板上,并在500℃进行热解,重复该涂覆-热解过程8次,然后对附着有涂覆膜的钛板进行烧结,在650℃下烧结80min,得到的钛板上形成均匀的催化剂膜层。The above Sn-containing suspension was coated on a titanium plate and pyrolyzed at 500 ° C, the coating-pyrolysis process was repeated 8 times, and then the titanium plate to which the coated film was attached was sintered and sintered at 650 ° C. At 80 min, a uniform catalyst film layer was formed on the obtained titanium plate.
上述涂覆有催化剂膜层的钛板作为阳极,不锈钢板作为阴极。钛板通过导线连接电源的正极,不锈钢通过导线连接电源的负极,并将钛板和不锈钢板均置于待处理的苯酚废水中,电源通电,阳极和阴极附近分别发生 氧化和还原反应,实现废水的净化排污处理。The titanium plate coated with the catalyst film layer described above serves as an anode, and the stainless steel plate serves as a cathode. The titanium plate is connected to the positive electrode of the power source through a wire, the stainless steel is connected to the negative electrode of the power source through a wire, and the titanium plate and the stainless steel plate are placed in the phenol wastewater to be treated, the power source is energized, and oxidation and reduction reactions respectively occur near the anode and the cathode to realize the wastewater. Purification and sewage treatment.
本实施例的处理效果见表3。The processing effect of this embodiment is shown in Table 3.
表3实施例3电解装置处理苯酚废水的效果Table 3 Example 3 Effect of Electrolyzer on Phenol Wastewater Treatment
项目project
|
臭氧ozone
|
处理前苯酚Pre-treatment phenol
|
处理后苯酚Phenol after treatment
|
浓度(mg/L)Concentration (mg/L)
|
4.54.5
|
1010
|
00
|
其中,臭氧浓度的检测方法采用的是化学碘量法。苯酚浓度的检测方法采用的是溴酸盐法。Among them, the method for detecting the ozone concentration is a chemical iodometric method. The method for detecting the concentration of phenol is the bromate method.
实施例4Example 4
称取1500g SnC
2O
4放入反应釜中,加入450g去离子水搅拌5min,接着向反应釜中加入5gSb
2O
3,继续搅拌3min,然后对反应釜进行加热至釜内温度为60℃,再加入1gNi(CH
3COO)
2·4H
2O继续搅拌。
Weigh 1500 g of SnC 2 O 4 into the reaction vessel, add 450 g of deionized water and stir for 5 min, then add 5 g of Sb 2 O 3 to the reaction vessel, continue stirring for 3 min, and then heat the reaction vessel until the temperature in the autoclave is 60 ° C. Further stirring was carried out by adding 1 g of Ni(CH 3 COO) 2 · 4H 2 O.
向上述反应釜内按照9L/min的流量通入氧气,加热维持反应釜内温度为60℃,持续通氧并搅拌。1h后停止对反应釜进行加热,使反应釜自然冷却,并沉淀7h,取沉淀后的上层悬浮液,得到含Sn悬浮液。Oxygen gas was introduced into the reaction vessel at a flow rate of 9 L/min, and the temperature in the reaction vessel was maintained at 60 ° C by heating, and oxygen was continuously supplied and stirred. After 1 h, the reaction vessel was stopped to be heated, the reaction vessel was naturally cooled, and precipitated for 7 hours, and the precipitated upper suspension was taken to obtain a Sn-containing suspension.
将上述含Sn悬浮液涂覆在铂片上,并在400℃进行热解,重复该涂覆-热解过程9次,然后对附着有涂覆膜的铂片进行烧结,在500℃下烧结90min,形成均匀的催化剂膜层。The above Sn-containing suspension was coated on a platinum sheet and pyrolyzed at 400 ° C. The coating-pyrolysis process was repeated 9 times, and then the platinum film to which the coating film was attached was sintered and sintered at 500 ° C for 90 minutes. Forming a uniform catalyst film layer.
上述涂覆有催化剂膜层的铂片作为阳极,不锈钢板作为阴极。铂片通过导线连接电源的正极,不锈钢通过导线连接电源的负极,并将铂片和不锈钢板均置于待处理的含萘废水中,电源通电,阳极和阴极附近分别发生氧化和还原反应,实现废水的净化排污处理。The platinum plate coated with the catalyst film layer described above serves as an anode, and the stainless steel plate serves as a cathode. The platinum plate is connected to the positive electrode of the power source through a wire, the stainless steel is connected to the negative electrode of the power source through a wire, and the platinum plate and the stainless steel plate are placed in the naphthalene-containing waste water to be treated, the power source is energized, and the oxidation and reduction reactions respectively occur near the anode and the cathode, thereby realizing Wastewater purification and sewage treatment.
本实施例的处理效果见表4。The processing effect of this embodiment is shown in Table 4.
表4实施例4电解装置处理含萘废水的效果Table 4 Example 4 Effect of Electrolyzing Device on Treatment of Naphthalene Containing Wastewater
项目project
|
臭氧ozone
|
处理前萘Pre-treatment naphthalene
|
处理后萘Post-treatment naphthalene
|
浓度(mg/L)Concentration (mg/L)
|
3.23.2
|
9.89.8
|
<0.2<0.2
|
其中,臭氧浓度的检测方法采用的是化学碘量法。萘浓度的检测方法采用的是气相色谱法。Among them, the method for detecting the ozone concentration is a chemical iodometric method. The method for detecting the concentration of naphthalene is gas chromatography.
实施例5Example 5
称取500g SnC
2O
4放入反应釜中,加入150g去离子水搅拌4min,接着向反应釜中加入6gSb
2O
3,继续搅拌3min,然后对反应釜进行加热至釜内温度为55℃,再加入1gNi(CH
3COO)
2·4H
2O继续搅拌。
Weigh 500g of SnC 2 O 4 into the reaction vessel, add 150g of deionized water and stir for 4min, then add 6g of Sb 2 O 3 to the reaction kettle, continue stirring for 3min, and then heat the reactor to a temperature of 55 ° C. Further stirring was carried out by adding 1 g of Ni(CH 3 COO) 2 · 4H 2 O.
向上述反应釜内按照10L/min的流量通入氧气,加热维持反应釜内温度为55℃,持续通氧并搅拌。2h后停止对反应釜进行加热,使反应釜自然冷却,并沉淀6h,取沉淀后的上层悬浮液,得到含Sn悬浮液。Oxygen gas was introduced into the reaction vessel at a flow rate of 10 L/min, and the temperature in the reaction vessel was maintained at 55 ° C by heating, and oxygen was continuously supplied and stirred. After 2 h, the reaction vessel was stopped to be heated, the reaction vessel was naturally cooled, and precipitated for 6 hours, and the precipitated upper suspension was taken to obtain a Sn-containing suspension.
将上述含Sn悬浮液涂覆在钛板上,并在450℃进行热解,重复该涂覆-热解过程7次,然后对附着有涂覆膜的钛板进行烧结,在650℃下烧结60min,得到的钛板上形成均匀的催化剂膜层。The above Sn-containing suspension was coated on a titanium plate and pyrolyzed at 450 ° C. The coating-pyrolysis process was repeated 7 times, and then the titanium plate to which the coating film was attached was sintered and sintered at 650 ° C. At 60 min, a uniform catalyst film layer was formed on the obtained titanium plate.
上述涂覆有催化剂膜层的钛板作为阳极,不锈钢板作为阴极。钛板通过导线连接电源的正极,不锈钢通过导线连接电源的负极,并将钛板和不锈钢板均置于待处理的含萘废水中,电源通电,阳极和阴极附近分别发生氧化和还原反应,实现废水的净化排污处理。The titanium plate coated with the catalyst film layer described above serves as an anode, and the stainless steel plate serves as a cathode. The titanium plate is connected to the positive electrode of the power source through a wire, the stainless steel is connected to the negative electrode of the power source through a wire, and the titanium plate and the stainless steel plate are placed in the naphthalene-containing waste water to be treated, the power source is energized, and oxidation and reduction reactions occur respectively near the anode and the cathode to realize Wastewater purification and sewage treatment.
本实施例的处理效果见表5。The processing effect of this embodiment is shown in Table 5.
表5实施例5电解装置处理含萘废水的效果Table 5 Example 5 Effect of Electrolyzing Device on Treatment of Naphthalene Containing Wastewater
项目project
|
臭氧ozone
|
处理前萘Pre-treatment naphthalene
|
处理后萘Post-treatment naphthalene
|
浓度(mg/L)Concentration (mg/L)
|
4.24.2
|
99
|
<0.1<0.1
|
其中,臭氧浓度的检测方法采用的是化学碘量法。萘浓度的检测方法采用的是气相色谱法。Among them, the method for detecting the ozone concentration is a chemical iodometric method. The method for detecting the concentration of naphthalene is gas chromatography.
对照例Control case
仅将钛板作为阳极,不锈钢板作为阴极。钛板通过导线连接电源的正极,不锈钢通过导线连接电源的负极,并将钛板和不锈钢板均置于待处理 的含萘废水或苯酚废水中,电源通电,电解条件同实施例1,进行污水的电解处理。Only the titanium plate was used as the anode, and the stainless steel plate was used as the cathode. The titanium plate is connected to the positive electrode of the power source through a wire, the stainless steel is connected to the negative electrode of the power source through a wire, and the titanium plate and the stainless steel plate are placed in the wastewater containing naphthalene wastewater or phenol to be treated, and the power source is energized, and the electrolysis condition is the same as that in the first embodiment. Electrolytic treatment.
经检测,在该试验条件下,并未检测出有臭氧生成。含萘废水和苯酚废水的处理效果如表6所示:Ozone formation was not detected under the test conditions. The treatment effects of naphthalene-containing wastewater and phenol wastewater are shown in Table 6:
表6对照例电解装置处理含萘废水或苯酚废水的效果Table 6 Comparison of the effects of electrolysis equipment on the treatment of wastewater containing naphthalene or phenol
项目project
|
处理前萘Pre-treatment naphthalene
|
处理后萘Post-treatment naphthalene
|
处理前苯酚Pre-treatment phenol
|
处理后苯酚Phenol after treatment
|
浓度(mg/L)Concentration (mg/L)
|
8.98.9
|
8.28.2
|
9.39.3
|
8.78.7
|
综上,本发明制备的含Sn悬浮液能够很好的促进电解过程中臭氧的产生,对于污水的净化处理具有很可观的效果,有利于实现工业化应用。In summary, the Sn-containing suspension prepared by the invention can promote the generation of ozone in the electrolysis process well, and has a considerable effect on the purification treatment of the sewage, and is advantageous for industrial application.
最后应说明的是:显然,上述实施例仅仅是为清楚地说明本发明所作的举例,而并非对实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引申出的显而易见的变化或变动仍处于本发明的保护范围之中。It should be noted that the above-described embodiments are merely illustrative of the invention and are not intended to limit the embodiments. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations resulting therefrom are still within the scope of the invention.