CN107138169A - 一种低成本二维硫化物纳米结制氢光催化剂以及其制备方法和应用 - Google Patents
一种低成本二维硫化物纳米结制氢光催化剂以及其制备方法和应用 Download PDFInfo
- Publication number
- CN107138169A CN107138169A CN201710278270.2A CN201710278270A CN107138169A CN 107138169 A CN107138169 A CN 107138169A CN 201710278270 A CN201710278270 A CN 201710278270A CN 107138169 A CN107138169 A CN 107138169A
- Authority
- CN
- China
- Prior art keywords
- znin
- mos
- photochemical catalyst
- hydrogen production
- nano junction
- 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.)
- Granted
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000001257 hydrogen Substances 0.000 title claims abstract description 38
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 9
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 61
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 54
- 229910052961 molybdenite Inorganic materials 0.000 claims abstract description 45
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 5
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 15
- 238000005286 illumination Methods 0.000 claims description 14
- 239000011684 sodium molybdate Substances 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 7
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 4
- 235000015393 sodium molybdate Nutrition 0.000 claims description 4
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 4
- 239000011592 zinc chloride Substances 0.000 claims description 4
- SSVFMICWXDVRQN-UHFFFAOYSA-N ethanol;sodium Chemical compound [Na].CCO SSVFMICWXDVRQN-UHFFFAOYSA-N 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 230000002829 reductive effect Effects 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 13
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 description 14
- 238000007146 photocatalysis Methods 0.000 description 11
- 238000005119 centrifugation Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- -1 polytetrafluoroethylene Polymers 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 229910052724 xenon Inorganic materials 0.000 description 7
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 238000004587 chromatography analysis Methods 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 229910004619 Na2MoO4 Inorganic materials 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 239000011259 mixed solution Substances 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000003643 water by type Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 206010013786 Dry skin Diseases 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- PSCMQHVBLHHWTO-UHFFFAOYSA-K indium(iii) chloride Chemical compound Cl[In](Cl)Cl PSCMQHVBLHHWTO-UHFFFAOYSA-K 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/047—Sulfides with chromium, molybdenum, tungsten or polonium
- B01J27/051—Molybdenum
-
- 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
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/391—Physical properties of the active metal ingredient
- B01J35/393—Metal or metal oxide crystallite size
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/042—Decomposition of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明提供一种低成本二维硫化物纳米结制氢光催化剂以及其制备方法和应用。所研制二维硫化物纳米结光催化剂可以有效地应用在光催化分解水制氢领域。本发明的光催化剂其化学通式为:MoS2/Cu‑ZnIn2S4,其中MoS2的质量分数为1%~5%。本发明的二维硫化物纳米结制氢光催化剂通过在光催化材料之间构建具有大面积的二维纳米结来加速光催化剂的光生载流子传输和增强光催化剂的制氢性能。
Description
技术领域
本发明属于清洁能源转换材料领域,尤其是涉及一种二维硫化物纳米结制氢光催化剂以及其制备方法和应用。
背景技术
能源危机与环境污染是当今世界面临的两大难题,开发环境友好、成本低廉、来源丰富、可再生的绿色能源已经成为人类社会发展的一个巨大挑战。太阳能具有资源丰富、分布相对均匀、无需运输、环境友好等忧点,是未来社会最理想的能源。光催化制氢技术利用自然界丰富的太阳能和水资源将太阳能转换为氢能,是利用太阳能最理想的方式之一。传统的光催化剂是使用贵金属担载的半导体材料,在半导体材料表面担载一种助催化剂,以抑制光生电子空-穴对的复合,提高体系的制氢速率。
目前,光催化制氢催化剂虽然取得了较大的进展。但报道的光催化剂依然存在以下科学难题:(1)含有贵金属,制备成本昂贵;(2)由于光催化剂具有较宽带隙,使得光催化剂不能吸收可见光将利用其进行光催化转换反应;(3)光催化剂的光生载流子分离效率低,使得光催化剂反应活性低。所以,开发低成本、可见光响应,高活性的光催化制氢材料仍然是光催化领域学术界和产业界重要方向研究之一。
近年来,以层状二硫化钼为代表的非铂制氢催化剂因其廉价和较高的性能引起了广泛的关注。在粉末光催化制氢体系中,相关研究表明二硫化钼的催化性能优于Pt、Au、Pd、Rh、Ru等贵金属催化剂,二硫化钼是一种有望替代贵金属的新颖材料。二硫化钼分为晶型与非晶型两类,它们在催化水还原反应中的作用机制也存在较大区别。晶型的二硫化钼与石墨烯具有相似的层状结构,层与层之间通过范德华力结合在一起。块状的晶型二硫化钼是间接带隙半导体(带隙1.29eV),由于它的导带位置(+0.25V vs.NHE)高于水的还原电势(0Vvs.NHE),并不能催化水还原生成氢气。由于量子尺寸效应,纳米结构的二硫化钼带隙随着颗粒粒径减少而增大,其导带电势也随着粒径的减少而降低,在数值上低于水还原电势。相关的理论与实验研究表明,晶型的二硫化钼催化水还原反应的活性位点位于其片层结构的Mo(0101)晶面边缘暴露的不饱和硫原子。通过制备二维的二硫化钼超薄片,暴露更多的活性边缘位点,并将其复合到半导体光催化材料表面,增大材料之间的接触面积,是增强二硫化钼基光催化剂性能的有效方法。基于此,本发明提出了一种通过增大光催化材料之间的接触界面积来提高光催化剂的反应活性效率的方法。本发明的低成本二维硫化物纳米结制氢光催化剂,通过对硫化物结构修饰后后,其光催化活性最高可提高达65倍左右,是一种优良的、可应用于光催化分解水制氢的材料。
发明内容
本发明的第一个目的是针对现有光催化剂的不足,提出一种新型二维低成本纳米光催化剂。通过在光催化剂界面构建二维纳米结,有效地提高光催化剂的载流子分离效率和光催化性能。同时,该光催化剂在可见光区域具有较强的吸收能力,可作为可见光响应的光催化制氢材料。
本发明通过如下技术方案实现:
一种二维纳米结光催化剂,化学通式如下:
MoS2/Cu-ZnIn2S4,其中MoS2的质量分数可以为1~5%。
根据本发明MoS2/Cu-ZnIn2S4二维纳米结光催化剂,其特征在于MoS2和Cu-ZnIn2S4之间存在较大致密的二维纳米结界面,可有效地加速MoS2/Cu-ZnIn2S4光催化剂的光生载流子分离效率和增强光催化剂的制氢性能。同时,MoS2/Cu-ZnIn2S4光催化剂的化学组成不含贵金属,制备成本低。
本发明的第二个目的是提供一种上述MoS2/Cu-ZnIn2S4二维纳米结光催化剂的制备方法,该方法通过界面工程提高MoS2/Cu-ZnIn2S4光催化剂的催化效率,其特征在于所述方法为水热合成方法。
该制备方法具体是以含氯化铟,氯化铜,氯化锌和硫化钠为反应物,按上述光催化剂的化学式组成的摩尔配比称量,加入水热反应釜并在烘箱中180-210℃加热处理16-24小时。反应产物溶液冷却至室温后经离心分离,获得淡灰色的粉末在60℃烘箱干燥后获得MoS2/Cu-ZnIn2S4光催化剂,具体是:
步骤(1)以氯化铟、氯化铜、硫化钠的乙醇溶液为前驱体,在150-180℃通过水热合成Cu-NaInS2,反应时间为16-24小时,获得的淡黄色粉末状样品Cu-NaInS2。
步骤(2)Cu-NaInS2和氯化锌的乙醇溶液为前驱体,在150-180℃通过水热合成Cu-ZnIn2S4,反应时间为16-24小时,获得的黄色粉末状样品Cu-ZnIn2S4。
步骤(3)Cu-ZnIn2S4、钼酸钠、硫脲的水溶液为反应物,在180-210℃通过水热合成MoS2/Cu-ZnIn2S4,反应时间为16-24小时,获得的淡灰色粉末状样品。通过调控钼酸钠和硫脲的质量,可以使得MoS2/Cu-ZnIn2S4纳米结制氢光催化剂中的MoS2的质量分数为1%~5%。
本发明的第三个目的是涉及上述二维光催化剂的应用。该光催化剂可用于构建高效的光催化制氢体系。本发明中,采用上述材料组分和制备方法,可获得二维纳米结MoS2/Cu-ZnIn2S4光催化剂。在20%的甲醇水溶液中以300W氙灯为光源,MoS2/Cu-ZnIn2S4光催化剂的性能是纯的Cu-ZnIn2S4性能的65倍。
本发明的有益效果是:通过在MoS2与Cu-ZnIn2S4之间构建二维纳米结,为光催化剂光生载流子传输提供有效的通道,提高MoS2/Cu-ZnIn2S4光催化剂的制氢性能。
本发明通过制备二维-MoS2/Cu-ZnIn2S4光催化剂,通过增大光催化材料之间的接触界面积来提高光催化剂的反应活性效率的方法。本发明的低成本二维硫化物纳米结制氢光催化剂,通过对硫化物结构修饰后后,其光催化活性最高可提高达65倍左右,是一种优良的、可应用于光催化分解水制氢的材料。
附图说明
图1是实例1-1,1-2,1-3,1-4和1-5中MoS2/Cu-ZnIn2S4光催化剂的X射线衍射图谱;
图2是实例1-2中MoS2/Cu-ZnIn2S4光催化剂的SEM图;
图3是实例2-1,2-2,2-3,2-4和2-5中MoS2/Cu-ZnIn2S4光催化剂在甲水溶液中的光催化制氢性能。
具体实施方式
以下将通过具体实施例对本发明进行详细描述,但本领域技术人员了解,下述实施例不是对本发明保护范围的限制,任何在本发明基础上做出的改进和变化都在本发明的保护范围之内。
实施例1-1:
(1)配置50毫升含有InCl3(5mM),Na2S(5mM)和CuCl2(0.25mM)的乙醇溶液,常温搅拌后转入100ml的聚四氟乙烯水热反应釜中,在150℃温度下反应24h。反应溶液冷却至室温后,通过离心得到固体样品经去离子水和乙醇洗3次后在烘箱中60℃干燥4h,得到含有掺杂Cu质量分数为5%的黄色Cu-NaInS2粉末样品。
(2)配置50毫升含有0.2mmol Cu-NaInS2粉末样品和0.1mmol ZnCl2的乙醇溶液,超声分散10分钟后加入于100ml的聚四氟乙烯水热反应釜中,在150℃温度下反应24h。反应溶液冷却至室温后,通过离心得到固体样品经去离子水和乙醇洗3次后在烘箱中60℃干燥4h,得到深黄色Cu-ZnIn2S4粉末样品。
(3)配置50毫升含有200mg Cu-ZnIn2S4粉末样品和3mg Na2MoO4和6mg硫脲的水溶液,超声分散20分钟后加入于100ml的聚四氟乙烯水热反应釜中。混合溶液在210℃反应24h后冷却至室温,通过离心得到固体样品经去离子水和乙醇洗3次后在烘箱中60℃干燥4h,得到灰色的含有MoS2质量分数为1%的MoS2/Cu-ZnIn2S4粉末样品。如附图1所示,1%的MoS2/Cu-ZnIn2S4催化剂的组成通过XRD进行了表征。
实施例1-2:
步骤(1)-(3)与实施例1-1条件一致;
步骤(4)配置50毫升含有200mg Cu-ZnIn2S4粉末样品和6mg Na2MoO4和12mg硫脲的水溶液,超声分散20分钟后加入于100ml的聚四氟乙烯水热反应釜中。混合溶液在210℃反应24h后冷却至室温,通过离心得到固体样品经去离子水和乙醇洗3次后在烘箱中60℃干燥4h,得到灰色的含有MoS2质量分数为2%的MoS2/Cu-ZnIn2S4粉末样品。如附图1所示,2%的MoS2/Cu-ZnIn2S4催化剂的组成通过XRD进行了表征。其二维的特征形貌如附图2所示。
实施例1-3:
步骤(1)-(3)与实施例1-1条件一致;
步骤(4)配置50毫升含有200mg Cu-ZnIn2S4粉末样品和9mg Na2MoO4和18mg硫脲的水溶液,超声分散20分钟后加入于100ml的聚四氟乙烯水热反应釜中。混合溶液在210℃反应24h后冷却至室温,通过离心得到固体样品经去离子水和乙醇洗3次后在烘箱中60℃干燥4h,得到灰色的含有MoS2质量分数为3%的MoS2/Cu-ZnIn2S4粉末样品。如附图1所示,3%的MoS2/Cu-ZnIn2S4催化剂的组成通过XRD进行了表征。
实施例1-4:
步骤(1)-(3)与实施例1-1条件一致;
步骤(4)配置50毫升含有200mg Cu-ZnIn2S4粉末样品和12mg Na2MoO4和24mg硫脲的水溶液,超声分散20分钟后加入于100ml的聚四氟乙烯水热反应釜中。混合溶液在210℃反应24h后冷却至室温,通过离心得到固体样品经去离子水和乙醇洗3次后在烘箱中60℃干燥4h,得到灰色的含有MoS2质量分数为4%的MoS2/Cu-ZnIn2S4粉末样品。如附图1所示,4%的MoS2/Cu-ZnIn2S4催化剂的组成通过XRD进行了表征。
实施例1-5:
步骤(1)-(3)与实施例1-1条件一致;
步骤(4)配置50毫升含有200mg Cu-ZnIn2S4粉末样品和15mg Na2MoO4和30mg硫脲的水溶液,超声分散20分钟后加入于100ml的聚四氟乙烯水热反应釜中。混合溶液在210℃反应24h后冷却至室温,通过离心得到固体样品经去离子水和乙醇洗3次后在烘箱中60℃干燥4h,得到灰色的含有MoS2质量分数为5%的MoS2/Cu-ZnIn2S4粉末样品。如附图1所示,5%的MoS2/Cu-ZnIn2S4催化剂的组成通过XRD进行了表征。
对比例1:
在容量为350ml的玻璃反应器中称量50mg Cu-ZnIn2S4光催化剂,加入200ml去离子水和50ml无水甲醇。将溶液中一起去除后以300W的氙灯为光源,在可见照射下(λ>420nm)测试光催化剂的性能。将体系中生成的氢气导入到气象色谱中进行成分分析。如图3所示,光照4小时后,生成的氢气速率为85μmolh-1g-1。
实施例2-1:
在容量为350ml的玻璃反应器中称量50mg 1%的MoS2/Cu-ZnIn2S4光催化剂,加入200ml去离子水和50ml无水甲醇。将溶液中一起去除后以300W的氙灯为光源,在可见照射下(λ>420nm)测试光催化剂的性能。将体系中生成的氢气导入到气象色谱中进行成分分析。如图3所示,光照4小时后,生成的氢气速率为1235μmolh-1g-1。发现1%的MoS2/Cu-ZnIn2S4光催化性能比没有负载MoS2的Cu-ZnIn2S4提高了15倍。
实施例2-2:
在容量为350ml的玻璃反应器中称量50mg 2%的MoS2/Cu-ZnIn2S4光催化剂,加入200ml去离子水和50ml无水甲醇。将溶液中一起去除后以300W的氙灯为光源,在可见照射下(λ>420nm)测试光催化剂的性能。将体系中生成的氢气导入到气象色谱中进行成分分析。如图3所示,光照4小时后,生成的氢气速率为3611μmolh-1g-1。发现3%的MoS2/Cu-ZnIn2S4光催化性能比没有负载MoS2的Cu-ZnIn2S4提高了43倍。
实施例2-3:
在容量为350ml的玻璃反应器中称量50mg 3%的MoS2/Cu-ZnIn2S4光催化剂,加入200ml去离子水和50ml无水甲醇。将溶液中一起去除后以300W的氙灯为光源,在可见照射下(λ>420nm)测试光催化剂的性能。将体系中生成的氢气导入到气象色谱中进行成分分析。如图3所示,光照4小时后,生成的氢气速率为5489μmolh-1g-1。发现3%的MoS2/Cu-ZnIn2S4光催化性能比没有负载MoS2的Cu-ZnIn2S4提高了65倍。
实施例2-4:
在容量为350ml的玻璃反应器中称量50mg 4%的MoS2/Cu-ZnIn2S4光催化剂,加入200ml去离子水和50ml无水甲醇。将溶液中一起去除后以300W的氙灯为光源,在可见照射下(λ>420nm)测试光催化剂的性能。将体系中生成的氢气导入到气象色谱中进行成分分析。如图3所示,光照4小时后,生成的氢气速率为3256μmolh-1g-1。发现4%的MoS2/Cu-ZnIn2S4光催化性能比没有负载MoS2的Cu-ZnIn2S4提高了38倍。
实施例2-5:
在容量为350ml的玻璃反应器中称量50mg 4%的MoS2/Cu-ZnIn2S4光催化剂,加入200ml去离子水和50ml无水甲醇。将溶液中一起去除后以300W的氙灯为光源,在可见照射下(λ>420nm)测试光催化剂的性能。将体系中生成的氢气导入到气象色谱中进行成分分析。如图3所示,光照4小时后,生成的氢气速率为1016μmolh-1g-1。发现5%的MoS2/Cu-ZnIn2S4光催化性能比没有负载MoS2的Cu-ZnIn2S4提高了20倍。
实施例2-6:
将实施例2-1中的甲醇更改为100ml,其他实验条件跟实施例2-1一样,光照4小时后,基于1%的MoS2/Cu-ZnIn2S4光催化剂的出氢速率为1967μmolh-1g-1。
Claims (5)
1.一种低成本二维硫化物纳米结制氢光催化剂,能够在可见光照射下将水还用为氢气,其特征在于该硫化物纳米结光催化剂化学通式如下:
MoS2/Cu-ZnIn2S4,其中MoS2的质量含量为1%~5%;MoS2与Cu-ZnIn2S4之间存在二维纳米结界面。
2.制备如权利要求1所述的一种低成本二维硫化物纳米结制氢光催化剂的方法,其特征在于该方法以氯化铟、氯化铜、硫化钠的乙醇溶液为前驱体,在180-210℃通过水热合成Cu-NaInS2,反应时间为16-24小时,获得的淡黄色粉末状样品MoS2/Cu-ZnIn2S4光催化剂。
3.如权利要求2所述的制备方法,其特征在于该方法包括以下步骤:
步骤(1)以氯化铟、氯化铜、硫化钠的乙醇溶液为前驱体,在150-180℃通过水热合成Cu-NaInS2,反应时间为16-24小时,获得的淡黄色粉末状样品Cu-NaInS2。
步骤(2)Cu-NaInS2和氯化锌的乙醇溶液为前驱体,在150-180℃通过水热合成Cu-ZnIn2S4,反应时间为16-24小时,获得的黄色粉末状样品Cu-ZnIn2S4。
步骤(3)Cu-ZnIn2S4、钼酸钠、硫脲的水溶液为反应物,在180-210℃通过水热合成MoS2/Cu-ZnIn2S4,反应时间为16-24小时,获得的淡灰色粉末状样品。通过调控钼酸钠和硫脲的质量,可以使得MoS2/Cu-ZnIn2S4纳米结制氢光催化剂中MoS2的质量分数为1%~5%。
4.如权利要求1所述的一种低成本二维硫化物纳米结制氢光催化剂,在可见光驱动光催化还原水制备氢气上的应用。
5.如权利要求4所述的应用,其特征在于将MoS2/Cu-ZnIn2S4光催化剂与甲醇牺牲剂混合后,在可见光光照下可以将水还用为氢气。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710278270.2A CN107138169B (zh) | 2017-04-25 | 2017-04-25 | 一种二维硫化物纳米结制氢光催化剂以及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710278270.2A CN107138169B (zh) | 2017-04-25 | 2017-04-25 | 一种二维硫化物纳米结制氢光催化剂以及其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107138169A true CN107138169A (zh) | 2017-09-08 |
CN107138169B CN107138169B (zh) | 2020-03-03 |
Family
ID=59775398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710278270.2A Expired - Fee Related CN107138169B (zh) | 2017-04-25 | 2017-04-25 | 一种二维硫化物纳米结制氢光催化剂以及其制备方法和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107138169B (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108745391A (zh) * | 2018-05-24 | 2018-11-06 | 杭州电子科技大学 | 一种新型二维黑磷纳米片-MoS2复合太阳能制氢材料及其制备方法和应用 |
CN109225289A (zh) * | 2018-09-18 | 2019-01-18 | 张玉英 | 一种用于光解水制氢的硫化锌铜复合光催化剂及制备方法 |
CN110801846A (zh) * | 2019-10-31 | 2020-02-18 | 上海电力大学 | MoS2纳米花负载固溶体的高效光催化剂及制备方法和应用 |
CN110862824A (zh) * | 2019-10-30 | 2020-03-06 | 杭州电子科技大学 | 一种负载型钯锌量子点的制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103331175A (zh) * | 2013-07-10 | 2013-10-02 | 黑龙江大学 | 一种MoS2/ZnIn2S4纳米片复合材料的制备方法 |
CN105797753A (zh) * | 2016-04-19 | 2016-07-27 | 武汉大学 | 一种MoS2/TiO2二维复合纳米光催化剂及其制备方法和应用 |
-
2017
- 2017-04-25 CN CN201710278270.2A patent/CN107138169B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103331175A (zh) * | 2013-07-10 | 2013-10-02 | 黑龙江大学 | 一种MoS2/ZnIn2S4纳米片复合材料的制备方法 |
CN105797753A (zh) * | 2016-04-19 | 2016-07-27 | 武汉大学 | 一种MoS2/TiO2二维复合纳米光催化剂及其制备方法和应用 |
Non-Patent Citations (2)
Title |
---|
PENG HU ET AL.: "Ion-Induced Synthesis of Uniform Single-Crystalline Sulphide-Based Quaternary-Alloy Hexagonal Nanorings for Highly Effi cient Photocatalytic Hydrogen Evolution", 《ADVANCED MATERIALS》 * |
SHAOHUA SHEN ET AL.: "Enhanced Photocatalytic Hydrogen Evolution over Cu-Doped ZnIn2S4 under Visible Light Irradiation", 《J. PHYS. CHEM. C》 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108745391A (zh) * | 2018-05-24 | 2018-11-06 | 杭州电子科技大学 | 一种新型二维黑磷纳米片-MoS2复合太阳能制氢材料及其制备方法和应用 |
CN109225289A (zh) * | 2018-09-18 | 2019-01-18 | 张玉英 | 一种用于光解水制氢的硫化锌铜复合光催化剂及制备方法 |
CN110862824A (zh) * | 2019-10-30 | 2020-03-06 | 杭州电子科技大学 | 一种负载型钯锌量子点的制备方法 |
CN110862824B (zh) * | 2019-10-30 | 2022-08-05 | 杭州电子科技大学 | 一种负载型钯锌量子点的制备方法 |
CN110801846A (zh) * | 2019-10-31 | 2020-02-18 | 上海电力大学 | MoS2纳米花负载固溶体的高效光催化剂及制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN107138169B (zh) | 2020-03-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Wang et al. | Graphdiyne (CnH2n–2) based CuI-GDY/ZnAl LDH double S-scheme heterojunction proved with in situ XPS for efficient photocatalytic hydrogen production | |
CN107138169A (zh) | 一种低成本二维硫化物纳米结制氢光催化剂以及其制备方法和应用 | |
Che et al. | Fast photoelectron transfer in (Cring)–C3N4 plane heterostructural nanosheets for overall water splitting | |
Wang et al. | Enhanced visible light photocatalytic H2 evolution of metal-free g-C3N4/SiC heterostructured photocatalysts | |
You et al. | Construction 0D/2D heterojunction by highly dispersed Ag2S quantum dots (QDs) loaded on the g-C3N4 nanosheets for photocatalytic hydrogen evolution | |
CN107649150B (zh) | 一种富含硫空位的Cd/CdS异质结可见光催化剂的制备方法及其应用 | |
Pan et al. | Photocatalytic CO2 reduction with H2O over LaPO4 nanorods deposited with Pt cocatalyst | |
Gao et al. | Unsaturated selenium-enriched MoSe2+ x amorphous nanoclusters: One-step photoinduced co-reduction route and its boosted photocatalytic H2-evolution activity for TiO2 | |
Fu et al. | Ag2S quantum dots decorated on porous cubic-CdS nanosheets-assembled flowers for photocatalytic CO2 reduction | |
Nguyen et al. | Highly efficient nanostructured metal-decorated hybrid semiconductors for solar conversion of CO2 with almost complete CO selectivity | |
Chowdhury et al. | Sacrificial hydrogen generation from formaldehyde with Pt/TiO2 photocatalyst in solar radiation | |
Ji et al. | Fabrication of a ternary NiS/ZnIn2S4/g-C3N4 photocatalyst with dual charge transfer channels towards efficient H2 evolution | |
CN110252346B (zh) | 一种MoS2/SnS2/r-GO复合光催化剂的制备方法与用途 | |
CN114588888B (zh) | 一种光催化剂及其制备方法与应用 | |
Wang et al. | Strategy of nitrogen defects sponge from g-C3N4 nanosheets and Ni-Bi-Se complex modification for efficient dye-sensitized photocatalytic H2 evolution | |
CN110124693A (zh) | 石墨烯复合金属离子掺杂缺陷型半导体光催化剂制备方法 | |
CN107597166A (zh) | 一种碳点/硫化镉量子点/氮化碳催化剂及其制备方法 | |
CN103708532B (zh) | 树枝状硫化镉超细纳米棒等级结构材料及其制备方法 | |
CN107486221B (zh) | 一种硫化铜光催化剂及其制备方法 | |
CN110508295A (zh) | 一种硫化钼掺杂硫化镉微纳米材料的制备方法及其在光催化产氢中的应用 | |
Yuan et al. | Coordination engineering of the interfacial chemical bond and sulfur vacancies modulated S‐scheme charge transfer for efficient photocatalytic CO2 reduction | |
Zhang et al. | Embedding indium nitride at the interface of indium-oxide/indium-zinc-sulfide heterostructure with enhanced interfacial charge transfer for high photocatalytic hydrogen evolution | |
Kakavandi et al. | Visible light-assisted S-scheme p-and n-type semiconductors anchored onto graphene for increased photocatalytic H2 production via water splitting | |
CN106824228B (zh) | 一种花状硫化钴光催化剂及其制备方法 | |
Jing et al. | Photocatalytic hydrogen production from refinery gas over a fluidized-bed reactor II: parametric study |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200303 |