CN107008228A - 一种三维改性石墨烯滤网的制备方法 - Google Patents
一种三维改性石墨烯滤网的制备方法 Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000006260 foam Substances 0.000 claims abstract description 63
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 36
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 19
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 15
- 150000002815 nickel Chemical class 0.000 claims abstract description 15
- 150000001868 cobalt Chemical class 0.000 claims abstract description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007654 immersion Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims abstract description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims abstract description 4
- 150000004675 formic acid derivatives Chemical class 0.000 claims abstract description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 150000003891 oxalate salts Chemical class 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
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- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims description 2
- 125000005587 carbonate group Chemical group 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 17
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- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 3
- 229910000480 nickel oxide Inorganic materials 0.000 abstract description 3
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 abstract description 3
- -1 cobalt salt Chemical class 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 150000004965 peroxy acids Chemical class 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 28
- 229940011182 cobalt acetate Drugs 0.000 description 10
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 10
- 235000019256 formaldehyde Nutrition 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 229940078494 nickel acetate Drugs 0.000 description 5
- AIYYMMQIMJOTBM-UHFFFAOYSA-L nickel(ii) acetate Chemical class [Ni+2].CC([O-])=O.CC([O-])=O AIYYMMQIMJOTBM-UHFFFAOYSA-L 0.000 description 5
- ZGDWHDKHJKZZIQ-UHFFFAOYSA-N cobalt nickel Chemical compound [Co].[Ni].[Ni].[Ni] ZGDWHDKHJKZZIQ-UHFFFAOYSA-N 0.000 description 4
- 229930040373 Paraformaldehyde Natural products 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229920002866 paraformaldehyde Polymers 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
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Abstract
本发明公开了一种三维改性石墨烯滤网的制备方法,制备过程主要是以多孔泡沫金属为基底,将泡沫金属在0.05‑0.5mol/L的无机酸(如盐酸、硝酸、硫酸)中处理3‑24小时,配置钴盐+镍盐(包括碳酸盐、碳酸氢盐、草酸盐、甲酸盐、乙酸盐、丙酸盐、乙二酸盐)的水溶液,所述钴盐和镍盐的混合摩尔比为1:(0.1‑5),加入0.5‑5 wt%的石墨烯,搅拌均匀;将经过酸处理后的泡沫金属放在混合溶液中,浸泡超声30秒‑300秒后移出烘干,然后高温热处理。本发明先通过去除表面杂质及氧化层、再进行溶液浸染、再烘干的方式,在泡沫金属表面覆钴镍氧化物活性物质及石墨烯,增强活性物质的吸附表面积;制备过程简单、对环境友好,本发明制备的改性泡沫金属具有表面积大、吸附能力强等优点。
Description
技术领域
本发明涉及一种三维改性石墨烯滤网的制备方法。
背景技术
泡沫金属是一种具有三维网状结构,密度小质量较轻、孔隙率高(高于95%)、比表面积大、抗拉强度好、孔径适中(200-600μm)、容易负载活性物质等特点,利用泡沫金属做成的滤网,在空气流通过滤网时,空气将会与滤网有充分的接触。但是由于泡沫金属本身既没有催化分解甲醛的能力,也不具备吸附甲醛的功能,因此,可以通过对泡沫金属进行表面改性,在其表面上负载催化剂,使其具备对甲醛良好的去除能力。
甲醛类有害气体的净化原理一般分为两种:1、物理吸附,物理吸附技术主要利用多孔材料的吸附能力达到去除有害物质的目的,比如颗粒活性炭、硅胶等;2、催化氧化,在常温常压下对多种有害物质进行化学络合或者氧化分解,破坏有害气体的分子结构,使其发生化学反应生成二氧化碳和水,中和空气中的有害气体,进而逐步消除。但是现有的催化氧化类型的净化原理一般需要在特定条件下才能发生,例如紫外线照射或者高温等等,实用性并不强,为此本发明提供一种可在常温下催化分解甲醛的三维改性石墨烯滤网的制备方法用于解决此问题。
发明内容
为了解决上述问题,本发明提供一种三维改性石墨烯滤网的制备方法。
本发明解决其技术问题所采用的技术方案是:
一种三维改性石墨烯滤网的制备方法,包括以下步骤:
a、准备泡沫金属;
b、通过酸溶液浸泡去除泡沫金属表面的杂质及氧化层;
c、采用钴盐、镍盐、石墨烯及水配置成溶液作为浸染试剂;
d、将经过步骤b的泡沫金属放入浸染试剂中浸泡;
e、将经过步骤d的泡沫金属进行干燥处理;
f、将经过步骤e的泡沫金属进行高温热处理,使负载在泡沫金属表面的钴盐、镍盐发生分解而得到它们的复合氧化物。
所述泡沫金属采用泡沫镍或泡沫铝或泡沫铁或泡沫铜或泡沫锌或泡沫锡。
所述酸溶液为盐酸、硝酸、硫酸的其中一种或几种的混合物,浓度为0.05-0.5mol/L。
所述步骤b中浸泡时间为3-24小时。
所述钴盐和镍盐为碳酸盐、碳酸氢盐、草酸盐、甲酸盐、乙酸盐、丙酸盐、乙二酸盐。
所述镍盐和钴盐的混合摩尔比为1:(0.1-5),加入0.5%-5wt%的石墨烯,超声搅拌均匀。
所述步骤d中浸泡时间为30秒-300秒,浸泡时对溶液施加超声震荡。
将经过步骤d的泡沫金属在低温空气中烘干水分,烘烤温度为80-150℃。
所述步骤f中高温热处理的温度为360-600℃,时间为1-5小时。
本发明的有益效果是:本发明的方法先通过去除表面杂质及氧化层、再进行溶液浸染、再烘干的方式,在泡沫金属表面覆钴镍氧化物活性物质及石墨烯,增强活性物质的吸附表面积;制备过程简单、对环境友好;本发明制备的改性泡沫金属具有表面积大、吸附能力强等优点,并可以在常规环境下对甲醛进行催化分解。
具体实施方式
本发明是一种三维改性石墨烯滤网的制备方法,包括以下步骤:
a、准备泡沫金属;
b、通过酸溶液浸泡去除泡沫金属表面的杂质及氧化层;
c、采用钴盐、镍盐、石墨烯及水配置成溶液作为浸染试剂;
d、将经过步骤b的泡沫金属放入浸染试剂中浸泡;
e、将经过步骤d的泡沫金属进行干燥处理;
f、将经过步骤e的泡沫金属进行高温热处理,使负载在泡沫金属表面的钴盐、镍盐发生分解而得到它们的复合氧化物。
本发明的方法先通过去除表面杂质及氧化层、再进行溶液浸染、再烘干的方式,在泡沫金属表面覆钴镍氧化物活性物质及石墨烯,增强活性物质的吸附表面积;制备过程简单、对环境友好;本发明制备的改性泡沫金属具有表面积大、吸附能力强等优点,并可以在常规环境下对甲醛进行催化分解。
优选的,泡沫金属采用泡沫镍或泡沫铝或泡沫铁或泡沫铜或泡沫锌或泡沫锡等,其中泡沫镍价格相对比较便宜,性价比高。
其中,所述酸溶液为盐酸、硝酸、硫酸的其中一种或几种的混合物,浓度为0.05-0.5mol/L;所述步骤b中浸泡时间为3-24小时;所述钴盐和镍盐为碳酸盐、碳酸氢盐、草酸盐、甲酸盐、乙酸盐、丙酸盐、乙二酸盐;所述镍盐和钴盐的混合摩尔比为1:(0.1-5),加入0.5%-5wt%的石墨烯,超声搅拌均匀。
其中,所述步骤d中浸泡时间为30秒-300秒,浸泡时对溶液施加超声震荡。
其中,将经过步骤d的泡沫金属在低温空气中烘干水分,烘烤温度为80-150℃;步骤f中的高温热处理的温度为360-600℃,时间为1-5小时。
实施案例1
一种三维改性石墨烯滤网的制备方法,包括以下步骤:
1)取6×6cm的泡沫镍,在0.05mol/L的盐酸溶液中浸泡24小时;
2)配制50ml乙酸镍和乙酸钴混合摩尔比为1:5,加入1wt%的石墨烯,(乙酸镍摩尔为1mmol,乙酸钴摩尔为5mmol);
3)在混合溶液中超声浸泡0.5分钟,取出,在80℃烘箱中干燥一个小时;
4)将步骤3)所得泡沫镍在空气氛围中在400℃下热处理3h。
将实施例1制备的三维改性石墨烯滤网进行去除甲醛性能检测,所得结果如下表1所示。
实施案例2
制备三维改性石墨烯滤网的方法,包括以下步骤:
1)取6×6cm的泡沫镍,在0.5mol/L的盐酸溶液中浸泡2小时;
2)配制50ml乙酸镍和乙酸钴混合摩尔比为1:0.1(乙酸镍摩尔为1mmol,乙酸钴摩尔为0.1mmol)加入1wt%的石墨烯;
3)在混合溶液中超声浸泡6分钟,取出,在100℃烘箱中干燥1h;
4)将步骤3)所得泡沫镍在空气氛围中在420℃下热处理3h,泡沫镍表面生成钴镍氧化物;
将实施例2制备的三维改性石墨烯滤网进行去除甲醛性能检测,所得结果如下表1所示。
实施案例3
制备改性泡沫镍的方法,包括以下步骤:
1)取6×6cm的泡沫镍,在0.2mol/L的硫酸溶液中浸泡10小时;
2)配制50ml乙酸镍和乙酸钴混合摩尔比为1:1(乙酸镍摩尔为1mmol,乙酸钴摩尔为1mmol),加入3wt%的石墨烯;
3)在混合溶液中超声浸泡1分钟,取出,在120℃烘箱中干燥1h;
4)将步骤3)所得泡沫镍在空气氛围中在450℃下热处理1h,泡沫镍表面生成钴镍氧化物;
将实施例3制备的三维改性石墨烯滤网进行去除甲醛性能检测,所得结果如下表1所示。
实施案例4
三维改性石墨烯滤网制备的方法,包括以下步骤:
1)取6×6cm的泡沫镍,在0.2mol/L的硝酸溶液中浸泡10小时;
2)配制50ml乙酸镍和乙酸钴混合摩尔比为1:1.5(乙酸镍摩尔为1mmol,乙酸钴摩尔为1.5mmol)加入5wt%的石墨烯;
3)在混合溶液中超声浸泡5分钟,取出,在150℃烘箱中干燥0.5h;
4)将步骤3)所得泡沫镍在空气氛围中在400℃下热处理3h,泡沫镍表面生成钴镍氧化物活性物质;
将实施例4制备的三维改性石墨烯滤网进行去除甲醛性能检测,所得结果如下表1所示。
实施案例5
制备三维改性石墨烯滤网的方法,包括以下步骤:
1)取6×6cm的泡沫镍,在0.3mol/L的硝酸溶液中浸泡15小时;
2)配制50ml乙酸镍和乙酸钴混合摩尔比为1:2(乙酸镍摩尔为1mmol,乙酸钴摩尔为2mmol),加入2wt%的石墨烯;
3)在混合溶液中超声浸泡4分钟,取出,在90℃烘箱中干燥3h;
4)将步骤3)所得泡沫镍在空气氛围中在400℃下热处理1h,泡沫镍表面生成钴镍氧化物活性物质;
将实施例5制备的三维改性石墨烯滤网进行去除甲醛性能检测,所得结果如下表1所示。
表1实施例1-5制备的改性泡沫镍的吸附甲醛性能检测结果
上述实施例只是本发明的优选方案,本发明还可有其他实施方案。本领域的技术人员在不违背本发明精神的前提下还可作出等同变形或替换,这些等同的变型或替换均包含在本申请权利要求所设定的范围内。
Claims (9)
1.一种三维改性石墨烯滤网的制备方法,其特征在于包括以下步骤:
a、准备泡沫金属;
b、通过酸溶液浸泡去除泡沫金属表面的杂质及氧化层;
c、采用钴盐、镍盐、石墨烯及水配置成溶液作为浸染试剂;
d、将经过步骤b的泡沫金属放入浸染试剂中浸泡;
e、将经过步骤d的泡沫金属进行干燥处理;
f、将经过步骤e的泡沫金属进行高温热处理,使负载在泡沫金属表面的钴盐、镍盐发生分解而得到它们的复合氧化物。
2.如权利要求1所述的一种三维改性石墨烯滤网的制备方法,其特征在于所述泡沫金属采用泡沫镍或泡沫铝或泡沫铁或泡沫铜或泡沫锌或泡沫锡。
3.如权利要求1所述的一种三维改性石墨烯滤网的制备方法,其特征在于所述酸溶液为盐酸、硝酸、硫酸的其中一种或几种的混合物,浓度为0.05-0.5mol/L。
4.如权利要求1所述的一种三维改性石墨烯滤网的制备方法,其特征在于所述步骤b中浸泡时间为3-24小时。
5.如权利要求1所述的一种三维改性石墨烯滤网的制备方法,其特征在于所述钴盐和镍盐为碳酸盐、碳酸氢盐、草酸盐、甲酸盐、乙酸盐、丙酸盐、乙二酸盐。
6.如权利要求1所述的一种三维改性石墨烯滤网的制备方法,其特征在于所述镍盐和钴盐的混合摩尔比为1:( 0.1-5),加入0.5%-5wt%的石墨烯,超声搅拌均匀。
7.如权利要求1所述的一种三维改性石墨烯滤网的制备方法,其特征在于所述步骤d中浸泡时间为30秒-300秒,浸泡时对溶液施加超声震荡。
8.如权利要求1所述的一种三维改性石墨烯滤网的制备方法,其特征在于将经过步骤d的泡沫金属在低温空气中烘干水分,烘烤温度为80-150℃。
9.如权利要求1所述的一种三维改性石墨烯滤网的制备方法,其特征在于步骤f中高温热处理的温度为360-600℃,时间为1-5小时。
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