CN111957328A - 一种催化剂模块、制备方法及应用 - Google Patents
一种催化剂模块、制备方法及应用 Download PDFInfo
- Publication number
- CN111957328A CN111957328A CN202010848854.0A CN202010848854A CN111957328A CN 111957328 A CN111957328 A CN 111957328A CN 202010848854 A CN202010848854 A CN 202010848854A CN 111957328 A CN111957328 A CN 111957328A
- Authority
- CN
- China
- Prior art keywords
- carbon cloth
- composite
- catalyst
- catalyst module
- porous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 76
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 73
- 239000004744 fabric Substances 0.000 claims abstract description 69
- 229910000161 silver phosphate Inorganic materials 0.000 claims abstract description 40
- 239000002131 composite material Substances 0.000 claims abstract description 36
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011941 photocatalyst Substances 0.000 claims abstract description 19
- 230000001699 photocatalysis Effects 0.000 claims abstract description 11
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 230000000593 degrading effect Effects 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 18
- 238000002791 soaking Methods 0.000 claims description 17
- 239000011259 mixed solution Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 6
- 238000010335 hydrothermal treatment Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 4
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 230000005660 hydrophilic surface Effects 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 2
- FJOLTQXXWSRAIX-UHFFFAOYSA-K silver phosphate Chemical compound [Ag+].[Ag+].[Ag+].[O-]P([O-])([O-])=O FJOLTQXXWSRAIX-UHFFFAOYSA-K 0.000 abstract description 18
- 229940019931 silver phosphate Drugs 0.000 abstract description 18
- 229910000428 cobalt oxide Inorganic materials 0.000 abstract description 8
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 abstract description 8
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract description 2
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 4
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 3
- 229940043267 rhodamine b Drugs 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- LKZMBDSASOBTPN-UHFFFAOYSA-L silver carbonate Substances [Ag].[O-]C([O-])=O LKZMBDSASOBTPN-UHFFFAOYSA-L 0.000 description 1
- KQTXIZHBFFWWFW-UHFFFAOYSA-L silver(I) carbonate Inorganic materials [Ag]OC(=O)O[Ag] KQTXIZHBFFWWFW-UHFFFAOYSA-L 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/185—Phosphorus; Compounds thereof with iron group metals or platinum group metals
- B01J27/1853—Phosphorus; Compounds thereof with iron group metals or platinum group metals with iron, cobalt or nickel
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
-
- 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
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Catalysts (AREA)
Abstract
本发明公开了一种催化剂模块、制备方法及应用,催化剂模块包括多孔载体和复合催化剂,复合催化剂吸附在所述多孔载体上,且所述多孔载体可再生的重复负载所述复合催化剂。多孔载体为碳布,复合催化剂为Co3O4/Ag3PO4复合光催化剂。催化剂模块应用于降解有机污染物。碳布负载Co3O4/Ag3PO4复合光催化剂的制备方法包括清洗碳布、碳布生长氧化钴和复合磷酸银等步骤。该催化剂模块催化效率高,且可在可见光条件下降解有机污染物,且便于回收。制备的氧化钴为树枝状可以很好地与磷酸银缠结在一起防止磷酸银脱落,使得稳定性更好;并且氧化钴与磷酸银复合形成异质结可以有效促进电荷转移,提高光催化活性;载体可以重复回收利用,降低成本。
Description
技术领域
本发明属于催化剂制造领域,具体涉及一种碳布负载Co3O4/Ag3PO4复合光催化剂、其制备方法和应用。
背景技术
随着科技与工业的极速发展,环境污染越来越严重并且已经成为迫切解决的严重问题之一,特别是工业中的有机染料废水会严重污染地球环境;近几十年来,半导体光催化材料对有机污染物的净化有很好的效果并且引起广泛关注,其中TiO2、ZnO等具有很好的氧化能力、光稳定性强并且成本低。但是TiO2、ZnO等只能被紫外光激发。众所周知,紫外光只占太阳光的3-5%左右,远远低于可见光的比例(大约在45%左右)。因此,迫切需要开发具有较高活性和良好稳定性的可见光响应的光催化剂。
近年来,一系列Ag基光催化剂如Ag2CO3和Ag3PO4等被陆续研发,其在可见光照射下降解有机污染物时表现出来了优异的光催化活性。虽然单一的Ag基光催化剂虽然光催化效果好,但是这些Ag基光催化剂粉末存在难以分离回收并且容易发生光腐蚀、且稳定性不好的缺点,利用光催化剂的固定负载和耦合方法是解决上述问题的有效途径之一。并且负载型Ag基光催化剂更方便回收,复合后的Ag基光催化剂活性更高。
例如,申请号为CN201310462452.7的中国发明专利《一种二硫化钼/磷酸银复合可见光光催化材料及其制备方法》,该制备方法是由质量比为0.1:100~3:100的类石墨烯二硫化钼和磷酸银复合而成,具体是利用类石墨烯二硫化钼对磷酸银光催化剂进行改性处理,而得到一种类石墨烯二硫化钼/磷酸银复合材料。然而。粉末状的催化剂仍然存在回收困难的问题。
又如申请号为CN201810960073.3的中国发明专利《一种纳米片状磷酸银及其制备方法和作为可见光催化剂的应用》,该发明制备方法是将钼酸铵溶液滴加至硝酸银溶液中搅拌均匀,得到混合液;在所述混合液中滴加磷酸氢二钠溶液,搅拌反应,即得纳米片状磷酸银晶体,虽然该方法制备的磷酸银具有较好的可见光光催化活性,但是单一的磷酸银光催化材料容易发生光腐蚀,稳定性不高。
发明内容
为了克服现有技术的不足,本发明的目的在于提供一种催化剂模块、应用及其制备方法,其能解决上述问题。
本发明的目的采用以下技术方案实现:
一种催化剂模块,所述催化剂模块包括多孔载体和复合催化剂,所述复合催化剂吸附在所述多孔载体上,且所述多孔载体可再生的重复负载所述复合催化剂。
优选的,所述多孔载体包括但不限于碳基载体或陶瓷基载体的一种或组合,所述碳基载体包括但不限于碳布、多孔石墨中的一种或组合,所述陶瓷基载体包括但不限于多孔蜂窝状陶瓷载体;所述复合催化剂为Co3O4/Ag3PO4复合光催化剂。
优选的,所述多孔载体具有经化学方法改善的亲水性表面。
优选的,所述Co3O4通过水热法附着在多孔载体上,所述Ag3PO4通过沉淀法附着在所述多孔载体上。
优选的,所述催化剂模块应用于降解有机污染物。
一种碳布负载Co3O4/Ag3PO4复合光催化剂的制备方法,所述制备方法包括以下步骤。
S1碳布表面亲水处理,将碳布先后分别用丙酮、无水乙醇和去离子水中清洗15-25min,然后将碳布浸泡在60-65%的硝酸中15-24h以改善表面亲水性并进行干燥。
S2制取浸泡用混合溶液,将0.1-0.2g的氟化铵、0.5-2g的尿素、1g-1.5g的六水硝酸钴溶解在20mL去离子水和20mL的乙二醇的混合溶液中。
S3碳布水热化处理,将S1中表面亲水处理过的碳布浸泡在S2中的混合溶液中并转移到100mL反应釜中,在100-150℃下水热反应6-12h,自冷后取出清洗干燥。
S4碳布初负载,将水热后的碳布在300-350℃下加热1-3h,得到负载Co3O4的碳布。
S5完成复合负载,将步骤S4中得到的负载了Co3O4的碳布在0.3-0.5mol/L硝酸银溶液中浸泡6-12h,将浸泡过的碳布夹出放到0.15-0.2mol/L磷酸氢二氨溶液当中,浸泡0.5-1min,再将碳布反复浸泡在两种溶液中15-20次,水洗干燥,获得碳布负载Co3O4/Ag3PO4复合光催化材料的催化剂模块。
相比现有技术,本发明的有益效果在于:(1)催化效率高,碳布上生长树枝状自组装氧化钴并且复合磷酸银,有利于促进光生电子-空穴对的分离,提高光催化活性;(2)回收方便,很好的解决了粉末难以分离回收的问题,具有很好的产业化应用前景;(3)稳定性好,制备的氧化钴为树枝状,可以很好的与磷酸银复合,防止磷酸银脱落,使得稳定性更好。
附图说明
图1为本发明的催化剂模块中碳布负载Co3O4/Ag3PO4复合光催化剂的扫描电镜图;
图2为采用本发明催化剂模块在可见光下降解有机污染物的效果对比图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。
一种催化剂模块,包括多孔载体和复合催化剂,所述复合催化剂吸附在所述多孔载体上,且所述多孔载体可再生的重复负载所述复合催化剂。
其中,所述多孔载体为碳基载体或陶瓷基载体,所述碳基载体包括但不限于碳布、多孔石墨,所述陶瓷基载体包括但不限于多孔陶瓷。优选的,所述多孔载体的BET比表面积大于等于80m2/g。
进一步的,所述多孔载体具有经化学方法改善的亲水性表面,即经过化学处理后提高其表面的亲水性,以便于后续的催化剂吸附。
其中,所述复合催化剂为Co3O4/Ag3PO4复合光催化剂。进一步的,所述复合催化剂分步的先后附着在多孔载体的表面上。优选的,所述Co3O4通过水热法优先附着在多孔载体上,再将所述Ag3PO4通过沉淀法附着在所述多孔载体上。
其中,氧化钴Co3O4为树枝状的生长在多孔载体上,且与后续附着的磷酸银Ag3PO4缠结在一起防止磷酸银脱落,使得稳定性更好。
一种碳布负载Co3O4/Ag3PO4复合光催化剂的制备方法,所述制备方法包括以下步骤。
S1碳布表面亲水处理,将碳布分别用20mL丙酮、20mL无水乙醇和20mL去离子水清洗20min并放在60℃的干燥箱中干燥2h,并称取重量,然后将清洗后的碳布浸泡在20mL的硝酸(浓度为65%)中24h以改善表面亲水性并在60℃的干燥箱中干燥2h。以此完成碳布清洗的预处理。
S2制取浸泡用混合溶液,将0.1445g的氟化铵和0.9009g的尿素和1.0592g六水硝酸钴溶解在20mL去离子水和20mL乙二醇中并搅拌30min,配成混合液。
S3碳布水热化处理,将S1中处理过的碳布浸泡在S2中的混合溶液中并转移到100mL反应釜中在120℃下水热反应8h,取出碳布后用乙醇和去离子水清洗并干燥,制得负载Co2(CO3)(OH)2的碳布。
S4碳布初负载,将步骤S3中水热后的碳布放进通入氩气的马弗炉中在350℃下加热2h,碳布上生长氧化钴,制得负载CO3O4的碳布,并称取重量。
通过该步骤S4,将碳布上负载的Co2(CO3)(OH)2在煅烧后转变成了Co3O4。
综上,通过步骤S2-S4完成碳布上的氧化钴生长。
S5完成复合负载,将步骤S4中得到的碳布在30mL的0.5mol/L硝酸银溶液中浸泡6h,再将浸泡过的碳布夹出放到30mL的0.17mol/L磷酸氢二氨溶液当中,浸泡1min,再将碳布反复浸泡在以上两种溶液中20次,并用水清洗并干燥2h,制得碳布负载Co3O4/Ag3PO4复合光催化材料的催化剂模块。以此完成复合磷酸银。参见图1,为采用上述方法获得的碳布负载Co3O4/Ag3PO4的复合光催化剂的扫描电镜图,可见在碳布上生长了枝状Co3O4并复合了Ag3PO4颗粒。
采用上述催化剂模块,尤其是碳布负载Co3O4/Ag3PO4的复合光催化剂模块,其被应用于降解有机污染物,且在可见光下即可完成降解处理。参见图2,分别采用纯碳布、碳布负载Ag3PO4和碳布负载Co3O4/Ag3PO4催化剂模块在可见光下降解罗丹明B,从图中可以看出,在50min后碳布负载Co3O4/Ag3PO4对罗丹明B的降解率达到了94.7%,而在同样的时间内单纯用碳布负载/Ag3PO4对罗丹明B降解率仅为43%。
该催化剂性能稳定,这主要归因于碳布可以提高材料的导电性和稳定性。Co3O4/Ag3PO4优化了材料的电子结构,该催化剂可见光下催化活性高,在有机污物降解处理领域具有广泛的应用前景。
最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
Claims (7)
1.一种催化剂模块,其特征在于:所述催化剂模块包括多孔载体和复合催化剂,所述复合催化剂吸附在所述多孔载体上,且所述多孔载体可再生的重复负载所述复合催化剂。
2.根据权利要求1所述的催化剂模块,其特征在于:所述多孔载体包括但不限于碳基载体或陶瓷基载体的一种或组合,所述碳基载体包括但不限于碳布、多孔石墨中的一种或组合,所述陶瓷基载体包括但不限于多孔蜂窝状陶瓷载体;所述复合催化剂为Co3O4/Ag3PO4复合光催化剂。
3.根据权利要求1或2所述的催化剂模块,其特征在于:所述多孔载体具有经化学方法改善的亲水性表面。
4.根据权利要求1或2所述的催化剂模块,其特征在于:所述复合催化剂分步的先后附着在多孔载体的表面上。
5.根据权利要求2所述的催化剂模块,其特征在于:所述Co3O4通过水热法附着在多孔载体上,所述Ag3PO4通过沉淀法附着在所述多孔载体上。
6.根据权利要求2所述的催化剂模块,其特征在于:所述催化剂模块应用于降解有机污染物。
7.一种碳布负载Co3O4/Ag3PO4复合光催化剂的制备方法,其特征在于,所述制备方法包括以下步骤:
S1碳布表面亲水处理,将碳布分别用丙酮、无水乙醇和去离子水清洗15-25min,然后将碳布浸泡在60-65%的硝酸中15-24h以改善表面亲水性并进行干燥;
S2制取浸泡用混合溶液,将0.1-0.2g的氟化铵、0.5-2g的尿素、1g-1.5g的六水硝酸钴溶解在20mL去离子水和20mL的乙二醇的混合溶液中;
S3碳布水热化处理,将S1中表面亲水处理过的碳布浸泡在S2中的混合溶液中并转移到100mL反应釜中,在100-150℃下水热反应6-12h,自冷后取出清洗干燥;
S4碳布初负载,将水热后的碳布在300-350℃下加热1-3h,得到负载Co3O4的碳布;
S5完成复合负载,将步骤S4中得到的负载了Co3O4的碳布在0.3-0.5mol/L硝酸银溶液中浸泡6-12h,将浸泡过的碳布夹出放到0.15-0.2mol/L磷酸氢二氨溶液当中,浸泡0.5-1min,再将碳布反复浸泡在两种溶液中15-20次,水洗干燥,获得碳布负载Co3O4/Ag3PO4复合光催化材料的催化剂模块。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010848854.0A CN111957328A (zh) | 2020-08-21 | 2020-08-21 | 一种催化剂模块、制备方法及应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010848854.0A CN111957328A (zh) | 2020-08-21 | 2020-08-21 | 一种催化剂模块、制备方法及应用 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111957328A true CN111957328A (zh) | 2020-11-20 |
Family
ID=73390795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010848854.0A Pending CN111957328A (zh) | 2020-08-21 | 2020-08-21 | 一种催化剂模块、制备方法及应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111957328A (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115041205A (zh) * | 2022-06-29 | 2022-09-13 | 广东工业大学 | 一种复合光催化剂及其制备方法 |
CN115212903A (zh) * | 2022-05-25 | 2022-10-21 | 南昌航空大学 | 一种漂浮型光催化剂碳布负载纳米银/磷酸银的制备方法 |
CN116651473A (zh) * | 2023-04-14 | 2023-08-29 | 广东工业大学 | 一种碳布负载Co3O4/AgIO4复合光催化剂及其制备方法和应用 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108855164A (zh) * | 2018-06-19 | 2018-11-23 | 广东工业大学 | 一种碳布负载MoS2/Ag3PO4复合光催化材料的制备方法 |
CN110075891A (zh) * | 2019-04-18 | 2019-08-02 | 广东工业大学 | 一种碳布负载二氧化钛/碳酸银复合光催化剂及其制备方法和应用 |
CN110102324A (zh) * | 2019-03-26 | 2019-08-09 | 广东工业大学 | 一种新型高效碳酸银/溴化银/go三元复合光催化剂及其制备方法和应用 |
-
2020
- 2020-08-21 CN CN202010848854.0A patent/CN111957328A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108855164A (zh) * | 2018-06-19 | 2018-11-23 | 广东工业大学 | 一种碳布负载MoS2/Ag3PO4复合光催化材料的制备方法 |
CN110102324A (zh) * | 2019-03-26 | 2019-08-09 | 广东工业大学 | 一种新型高效碳酸银/溴化银/go三元复合光催化剂及其制备方法和应用 |
CN110075891A (zh) * | 2019-04-18 | 2019-08-02 | 广东工业大学 | 一种碳布负载二氧化钛/碳酸银复合光催化剂及其制备方法和应用 |
Non-Patent Citations (2)
Title |
---|
YUAN LIU,等: "Carbon Cloth-supported MoS2/Ag2S/Ag3PO4 Composite with High Photocatalytic Activity and Recyclability", 《CHEMCATCHEM》 * |
顾修全,等: "Ag3PO4/Co3O4异质结光催化剂的制备及其光催化性能研究", 《实验技术与管理》 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115212903A (zh) * | 2022-05-25 | 2022-10-21 | 南昌航空大学 | 一种漂浮型光催化剂碳布负载纳米银/磷酸银的制备方法 |
CN115212903B (zh) * | 2022-05-25 | 2023-10-13 | 南昌航空大学 | 一种漂浮型光催化剂碳布负载纳米银/磷酸银的制备方法 |
CN115041205A (zh) * | 2022-06-29 | 2022-09-13 | 广东工业大学 | 一种复合光催化剂及其制备方法 |
CN116651473A (zh) * | 2023-04-14 | 2023-08-29 | 广东工业大学 | 一种碳布负载Co3O4/AgIO4复合光催化剂及其制备方法和应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111957328A (zh) | 一种催化剂模块、制备方法及应用 | |
Bi et al. | Direct Z-scheme CoS/g-C3N4 heterojunction with NiS co-catalyst for efficient photocatalytic hydrogen generation | |
CN103521252B (zh) | 氮掺杂石墨烯复合半导体纳米粒子的光催化剂及制备方法 | |
CN111389442A (zh) | 负载于泡沫镍表面的p-n异质结复合材料及其制备方法与应用 | |
CN109174144B (zh) | Ni3C@Ni核壳助催化剂和Ni3C@Ni/光催化剂复合材料及其制备方法与应用 | |
CN101670282B (zh) | 负载型纳米二氧化钛催化剂的制备方法 | |
CN112958116B (zh) | 一种Bi2O2.33-CdS复合光催化剂及其制备工艺 | |
CN109046450B (zh) | 一种BiOCl/(BiO)2CO3负载的醋酸纤维素/丝素杂化膜的制备方法和应用 | |
WO2012109846A1 (zh) | 一种用于肼降解催化剂的制备和应用方法 | |
Cai et al. | rGO-modified BiOX (X= Cl, I, Br) for enhanced photocatalytic eradication of gaseous mercury | |
Zuo et al. | Modification of sulfur doped carbon nitride and its application in photocatalysis | |
CN111185152B (zh) | 一种多功能耦合的PAC/Bi2O3/TiO2复合材料制备方法 | |
CN114433147A (zh) | 碳布负载氧化锌/磷酸银复合光催化材料的制备方法 | |
Liu et al. | TiO 2/gC 3 N 4 heterojunction hollow porous nanofibers as superior visible-light photocatalysts for H 2 evolution and dye degradation | |
Lu et al. | Defected mesoporous carbon nitride with quantum confinement effect for NO purification | |
CN102580727B (zh) | 一种活性炭负载二氧化钛掺银光催化剂的制备方法 | |
CN111266111B (zh) | 一种镍掺杂的钛氧簇纳米催化材料、制备方法及应用 | |
CN111151251A (zh) | 一种Fe-Ni-Co复合类芬顿催化剂及制备方法 | |
CN113526607A (zh) | 基于碳点的有机物降解同步重金属还原光催化电极及应用 | |
CN111686766A (zh) | 一种金属-氟掺杂碳复合材料及其制备方法和在电催化固氮中的应用 | |
CN111013622B (zh) | Z型石墨化氮化碳/碳/硫掺杂的石墨化氮化碳复合材料及其制法 | |
CN111185207A (zh) | 一种Ag/BiPO4纳米复合光催化剂的制备方法 | |
Qiao et al. | Boosting nitrogen adsorption for photocatalytic ammonia production via tuning electron distribution using zero valent iron as medium | |
CN114308078B (zh) | 一种BiVO4/MoS2@GO复合光催化材料及其制备方法和应用 | |
CN115709059B (zh) | 一种桑葚状钒酸铋-碳纳米管复合光催化剂及其制备方法和应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201120 |