CN103920521A - Method for preparing natural zeolite loaded CuO nanotube composite material for removing formaldehyde - Google Patents
Method for preparing natural zeolite loaded CuO nanotube composite material for removing formaldehyde Download PDFInfo
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 46
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000010457 zeolite Substances 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 239000002071 nanotube Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000001699 photocatalysis Effects 0.000 claims abstract description 11
- 239000002070 nanowire Substances 0.000 claims abstract description 10
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims abstract description 7
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- 239000008139 complexing agent Substances 0.000 claims abstract description 7
- 239000008103 glucose Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims description 9
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 6
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002243 precursor Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 229960003280 cupric chloride Drugs 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- KFIGICHILYTCJF-UHFFFAOYSA-N n'-methylethane-1,2-diamine Chemical compound CNCCN KFIGICHILYTCJF-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000011941 photocatalyst Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 239000013566 allergen Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000003471 mutagenic agent Substances 0.000 description 1
- 231100000707 mutagenic chemical Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 231100000378 teratogenic Toxicity 0.000 description 1
- 230000003390 teratogenic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
本发明属于材料制备领域,具体为一种去除甲醛用天然沸石负载CuO纳米管复合材料的制备方法。首先,用盐酸对天然沸石进行处理,并水浴加热,搅拌、过滤、洗涤、干燥,热处理后制备出性能稳定的天然沸石,然后,结合浸渍工艺将天然沸石浸渍在氯化铜溶液中,以四甲基乙二胺为络合剂,CTAB为软模板,葡萄糖为还原剂,采用水热法制备天然沸石负载Cu纳米线,最后,采用热处理法制备天然沸石负载CuO纳米管复合光催化材料。该工艺过程简单,成本低,便于实现,制备的天然沸石负载CuO纳米管复合材料比表面积大,易于回收,吸附降解性能好。The invention belongs to the field of material preparation, in particular to a method for preparing a natural zeolite-supported CuO nanotube composite material for removing formaldehyde. First, the natural zeolite is treated with hydrochloric acid, heated in a water bath, stirred, filtered, washed, dried, and a stable natural zeolite is prepared after heat treatment. Methylethylenediamine was used as a complexing agent, CTAB was used as a soft template, and glucose was used as a reducing agent. Natural zeolite-supported Cu nanowires were prepared by hydrothermal method. Finally, natural zeolite-supported CuO nanotube composite photocatalytic materials were prepared by heat treatment. The process is simple, low in cost, and easy to realize, and the prepared natural zeolite-loaded CuO nanotube composite material has a large specific surface area, is easy to recycle, and has good adsorption and degradation performance.
Description
技术领域technical field
本发明属于材料制备领域,具体为一种去除甲醛用天然沸石负载CuO纳米管复合材料的制备方法。The invention belongs to the field of material preparation, in particular to a method for preparing a natural zeolite-supported CuO nanotube composite material for removing formaldehyde.
技术背景technical background
甲醛已经被世界卫生组织确定为致癌和致畸性物质,是公认的变态反应源,也是潜在的强致突变物之一。甲醛的主要来源于人造木板,装修材料及家具中的胶合板、大芯板、中纤板、刨花板的粘合剂与热、潮解时甲醛就被释放出来,工业废气、汽车尾气、光化学烟雾等在一定程度上也可排放一定量的甲醛。生活中,人们常用的去除甲醛的方法有通风法、绿色植物法、活性炭法、甲醛清除剂法。这些方法不能够彻底去除甲醛,因此我们将天然沸石合成沸石并负载CuO作为光催化剂,利用其吸附性和降解性能达到彻底去除甲醛的效果。Formaldehyde is defined as carcinogenic and teratogenic substance by the World Health Organization, is the allergen of generally acknowledging, also is one of potential strong mutagen. Formaldehyde mainly comes from artificial wood boards, decoration materials and plywood in furniture, large core boards, medium fiber boards, and particle boards. Formaldehyde is released during heat and deliquescence. To a certain extent, a certain amount of formaldehyde can also be emitted. In life, the methods commonly used by people to remove formaldehyde include ventilation method, green plant method, activated carbon method, and formaldehyde scavenger method. These methods cannot completely remove formaldehyde, so we synthesized zeolite from natural zeolite and loaded CuO as a photocatalyst, using its adsorption and degradation properties to achieve the effect of completely removing formaldehyde.
光催化是以TiO2、CuO等n型半导体材料为催化剂,利用自然界存在的光能转换成为化学反应所需的能量,来产生催化作用,使周围之氧气及水分子激发成极具氧化力的OH-及O2 -自由负离子,几乎可分解所有对人体和环境有害的有机物质及部分无机物质。半导体光催化可以利用于污水处理、空气净化、杀菌抗菌、自清洁等方面。Photocatalysis uses n-type semiconductor materials such as TiO 2 and CuO as catalysts, and converts the light energy existing in nature into the energy required for chemical reactions to produce catalysis, so that the surrounding oxygen and water molecules are excited into extremely oxidative OH - and O 2 - free negative ions can decompose almost all organic substances and some inorganic substances harmful to human body and environment. Semiconductor photocatalysis can be used in sewage treatment, air purification, sterilization and antibacterial, self-cleaning and other aspects.
然而,纳米半导体光催化剂粒径小,容易团聚,不易放置,吸附能力不强,限制了其在甲醛处理方面的应用,因此,科学家们尝试将纳米半导体光催化剂固定到一些载体上,例如粘土,活性炭,沸石分子筛等。沸石不仅具有均匀的、纳米级的多孔结构,这种结构可以形成稳定的、分子尺寸的半导体纳米团簇,而且具有较大的比表面积、极强的离子交换能力和吸附性能,因而沸石负载型光催化剂显示出比其他载体更高的活性。天然沸石作为一种非金属矿物材料,在我国的储量是相当丰富的。较低的成本、丰富的储量使天然沸石越来越受到重视。However, the nano-semiconductor photocatalyst has a small particle size, is easy to agglomerate, is not easy to place, and has a weak adsorption capacity, which limits its application in formaldehyde treatment. Therefore, scientists try to fix nano-semiconductor photocatalysts on some supports, such as clay, Activated carbon, zeolite molecular sieve, etc. Zeolite not only has a uniform, nano-scale porous structure, which can form stable, molecular-sized semiconductor nanoclusters, but also has a large specific surface area, strong ion exchange capacity and adsorption performance, so zeolite-loaded Photocatalysts show higher activity than other supports. As a non-metallic mineral material, natural zeolite is quite abundant in our country. The lower cost and abundant reserves make natural zeolite more and more important.
发明内容Contents of the invention
本发明的目的在于提出一种去除甲醛用天然沸石负载CuO纳米管复合材料的制备方法。The purpose of the present invention is to propose a method for preparing a natural zeolite-supported CuO nanotube composite material for removing formaldehyde.
天然沸石负载CuO纳米管复合材料及其制备方法。首先,用盐酸对天然沸石进行处理,并水浴加热,搅拌,过滤、洗涤、干燥,热处理后制备出性能稳定的天然沸石,然后,结合浸渍工艺将天然沸石浸渍在氯化铜溶液中,以四甲基乙二胺为络合剂,CTAB为软模板,葡萄糖为还原剂,采用水热法制备天然沸石负载Cu纳米线,最后,采用热处理法制备天然沸石负载CuO纳米管复合光催化材料。Natural zeolite-supported CuO nanotube composite material and its preparation method. Firstly, the natural zeolite is treated with hydrochloric acid, heated in a water bath, stirred, filtered, washed, dried, and the natural zeolite with stable performance is prepared after heat treatment. Methylethylenediamine was used as a complexing agent, CTAB was used as a soft template, and glucose was used as a reducing agent. Natural zeolite-supported Cu nanowires were prepared by hydrothermal method. Finally, natural zeolite-supported CuO nanotube composite photocatalytic materials were prepared by heat treatment.
本发明还提出上述方法制备天然沸石负载CuO纳米管复合材料的相关工艺参数,具体如下:首先,用0.3mol/L~0.5mol/L的盐酸对天然沸石进行处理,并在85℃~95℃水浴加热,搅拌、过滤、洗涤、干燥,500℃~600℃热处理后制备出性能稳定的天然沸石,然后,以氯化铜为前驱体,配制0.05mol/L~0.2mol/L的溶液,将天然沸石浸渍在溶液中,以2.2mL~2.4mL的四甲基乙二胺为络合剂,1.5g~2g的CTAB为软模板,8mmol~10mmol的葡萄糖为还原剂,在150℃~200℃下水热生长18h~24h,洗涤,干燥,得天然沸石负载Cu纳米线,最后,在400℃~500℃下热处理5h~6h可得天然沸石负载CuO纳米管复合光催化材料。The present invention also proposes the relevant process parameters for preparing the natural zeolite-loaded CuO nanotube composite material by the above method, specifically as follows: first, the natural zeolite is treated with 0.3mol/L-0.5mol/L hydrochloric acid, and the natural zeolite is treated at 85°C-95°C Heating in a water bath, stirring, filtering, washing, drying, and heat treatment at 500°C to 600°C to prepare a stable natural zeolite. Then, use copper chloride as a precursor to prepare a solution of 0.05mol/L to 0.2mol/L. Natural zeolite is impregnated in the solution, with 2.2mL~2.4mL tetramethylethylenediamine as complexing agent, 1.5g~2g CTAB as soft template, 8mmol~10mmol glucose as reducing agent, at 150℃~200℃ Under hydrothermal growth for 18h-24h, washed and dried to obtain natural zeolite-loaded Cu nanowires, and finally, heat treatment at 400°C-500°C for 5h-6h to obtain natural zeolite-loaded CuO nanotube composite photocatalytic materials.
本发明的特点:Features of the present invention:
1、工艺简单,成本低,便于实现。1. The process is simple, the cost is low, and it is easy to realize.
2、制备的天然沸石负载CuO纳米管复合材料比表面积大,易于回收,吸附降解性能好。2. The prepared natural zeolite-supported CuO nanotube composite material has a large specific surface area, is easy to recycle, and has good adsorption and degradation performance.
本制备工艺的使用方法如下:The method of use of this preparation process is as follows:
1、天然沸石负的制备及工艺参数:用0.3mol/L~0.5mol/L的盐酸对天然沸石进行处理,并在85℃-95℃水浴加热,搅拌、过滤、洗涤、干燥,500℃~600℃热处理后制备出性能稳定的天然沸石。1. Preparation and process parameters of natural zeolite: Treat natural zeolite with 0.3mol/L~0.5mol/L hydrochloric acid, heat in 85℃-95℃ water bath, stir, filter, wash, dry, 500℃~ The stable natural zeolite was prepared after heat treatment at 600℃.
2、典型天然沸石负载Cu纳米线的制备及工艺参数:以氯化铜为前驱体,配制0.05mol/L~0.2mol/L的溶液,将天然沸石浸渍在溶液中,以2.2mL~2.4mL的四甲基乙二胺为络合剂,1.5g~2g的CTAB为软模板,8mmol~10mmol的葡萄糖为还原剂,在150℃~200℃下水热生长18h~24h,洗涤,干燥,得天然沸石负载Cu纳米线。2. Preparation and process parameters of typical natural zeolite-loaded Cu nanowires: use copper chloride as the precursor, prepare a solution of 0.05mol/L-0.2mol/L, impregnate the natural zeolite in the solution, and use 2.2mL-2.4mL Tetramethylethylenediamine is used as a complexing agent, 1.5g~2g of CTAB is used as a soft template, 8mmol~10mmol of glucose is used as a reducing agent, hydrothermally grown at 150℃~200℃ for 18h~24h, washed and dried to obtain natural Zeolite supported Cu nanowires.
3、典型天然沸石负载CuO纳米管复合光催化材料的制备及工艺参数:将天然沸石负载Cu纳米线在400℃~500℃下热处理5h~6h可得天然沸石负载CuO纳米管复合光催化材料。3. Preparation and process parameters of typical natural zeolite-loaded CuO nanotube composite photocatalytic materials: natural zeolite-loaded CuO nanotube composite photocatalytic materials can be obtained by heat-treating natural zeolite-loaded Cu nanowires at 400°C-500°C for 5h-6h.
具体实施方式Detailed ways
下面通过实施例进一步描述本发明。The present invention is further described below by way of examples.
实施例Example
首先,用0.3mol/L的盐酸对天然沸石进行处理,并在95℃水浴加热,搅拌、过滤、洗涤、干燥,600℃热处理后制备出性能稳定的天然沸石,然后,以氯化铜为前驱体,配制0.2mol/L的溶液,将天然沸石浸渍在溶液中,以2.4mL的四甲基乙二胺为络合剂,1.5g的CTAB为软模板,8mmol的葡萄糖为还原剂,在180℃下水热生长24h,洗涤,干燥,得天然沸石负载Cu纳米线,最后,在400℃下热处理6h可得天然沸石负载CuO纳米管复合光催化材料。First, the natural zeolite is treated with 0.3mol/L hydrochloric acid, heated in a water bath at 95°C, stirred, filtered, washed, dried, and heat-treated at 600°C to prepare a stable natural zeolite. Then, copper chloride is used as a precursor body, prepare a 0.2mol/L solution, impregnate the natural zeolite in the solution, use 2.4mL of tetramethylethylenediamine as a complexing agent, 1.5g of CTAB as a soft template, and 8mmol of glucose as a reducing agent. The natural zeolite-supported Cu nanowires were obtained by hydrothermal growth at ℃ for 24 hours, washed and dried. Finally, the natural zeolite-supported CuO nanotube composite photocatalytic material was obtained by heat treatment at 400℃ for 6 hours.
按前述方法制备,可获得天然沸石负载CuO纳米管复合光催化材料,用该材料降解甲醛,48h的降解效率可达92%。Prepared according to the aforementioned method, the natural zeolite-loaded CuO nanotube composite photocatalytic material can be obtained, and the degradation efficiency of the material can reach 92% within 48 hours for degrading formaldehyde.
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苗成: "水热法制备一维Cu@C纳米电缆", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
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CN111013529A (en) * | 2019-11-29 | 2020-04-17 | 四川建筑职业技术学院 | Recyclable indoor air purification material and preparation method thereof |
CN111013529B (en) * | 2019-11-29 | 2023-04-07 | 四川建筑职业技术学院 | Recyclable indoor air purification material and preparation method thereof |
CN111804326A (en) * | 2020-07-01 | 2020-10-23 | 广东能创科技有限公司 | Preparation method of copper-based composite metal catalyst |
CN112892535A (en) * | 2021-03-05 | 2021-06-04 | 内蒙古大学 | Cu for VOC purificationxPreparation of O/Cu trans-photocatalytic material |
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