CN106179419B - 一种二维磁性纳米光催化剂的制备方法 - Google Patents
一种二维磁性纳米光催化剂的制备方法 Download PDFInfo
- Publication number
- CN106179419B CN106179419B CN201610521364.3A CN201610521364A CN106179419B CN 106179419 B CN106179419 B CN 106179419B CN 201610521364 A CN201610521364 A CN 201610521364A CN 106179419 B CN106179419 B CN 106179419B
- Authority
- CN
- China
- Prior art keywords
- nano
- molybdenum disulfide
- mos
- tio
- preparation
- 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.)
- Expired - Fee Related
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 46
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052961 molybdenite Inorganic materials 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 15
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000009830 intercalation Methods 0.000 claims abstract description 13
- 230000002687 intercalation Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000011065 in-situ storage Methods 0.000 claims abstract description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002114 nanocomposite Substances 0.000 claims abstract description 3
- 239000002086 nanomaterial Substances 0.000 claims description 25
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 21
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 13
- 239000012454 non-polar solvent Substances 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 6
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 4
- DLEDOFVPSDKWEF-UHFFFAOYSA-N lithium butane Chemical compound [Li+].CCC[CH2-] DLEDOFVPSDKWEF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 4
- 239000012498 ultrapure water Substances 0.000 claims description 4
- 229910003087 TiOx Inorganic materials 0.000 claims description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 claims description 3
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- PVFSDGKDKFSOTB-UHFFFAOYSA-K iron(3+);triacetate Chemical compound [Fe+3].CC([O-])=O.CC([O-])=O.CC([O-])=O PVFSDGKDKFSOTB-UHFFFAOYSA-K 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 8
- 238000007146 photocatalysis Methods 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 239000010970 precious metal Substances 0.000 abstract description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000356 contaminant Substances 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002135 nanosheet Substances 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 21
- 239000003054 catalyst Substances 0.000 description 14
- 239000004408 titanium dioxide Substances 0.000 description 12
- -1 cadmium sulfide Compound Chemical class 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 3
- 239000002055 nanoplate Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229960004756 ethanol Drugs 0.000 description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000002336 sorption--desorption measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011787 zinc oxide Substances 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
- B01J27/0515—Molybdenum with iron group metals or platinum group metals
-
- 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
- B01J35/33—Electric or magnetic 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
- B01J35/39—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
- B01J35/396—Distribution of the active metal ingredient
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
本发明公开了一种无贵金属掺杂、成本低、制备简单、光催化活性高的二维磁性纳米光催化剂的制备方法。该方法在铁插层的二硫化钼纳米片上原位复合铁掺杂的二氧化钛纳米片材料,一锅法制备了铁掺杂二氧化钛纳米方块原位复合二硫化钼的二维纳米复合材料Fe‑TiO2/MoS2。所制备的Fe‑TiO2/MoS2可应用于光催化水分解制氢、光催化降解有机污染物以及太阳能光伏电池制备等领域。本发明属于新型纳米功能材料与绿色能源技术领域。
Description
技术领域
本发明涉及一种磁性纳米光催化剂的制备方法,所制备的光催化剂可应用于光催化水分解制氢、光催化降解有机污染物以及太阳能光伏电池制备等领域。本发明属于新型纳米功能材料与绿色能源技术领域。
背景技术
光催化剂,是一种在光的照射下,自身不起变化,却可以促进化学反应的物质,如常见的叶绿素就是典型的光催化剂,它能够在植物的光合作用中促进空气中的二氧化碳和水合成为氧气和碳水化合物。光催化剂的催化作用就是在自然界中存在的光的照射下,将光能转换成为化学反应所需的能量。光催化剂可使周围的氧气及水分子激发成极具氧化力的自由负离子,从而分解所有对人体和环境有害的有机物质及部分无机物质,而且,光催化剂不仅能加速反应,亦能运用自然界的定侓,不造成资源浪费与附加污染形成。目前,能作为光催化剂的材料主要包括二氧化钛、氧化锌、氧化锡、二氧化锆、硫化镉等多种氧化物硫化物半导体,其中二氧化钛(TiO2)因其氧化能力强,化学性质稳定无毒,成为世界上最当红的光催化剂材料。
然而,要充分发挥二氧化钛的实际应用水平,需要一方面通过调控其材料形貌以暴露更多高活性晶面来提高光催化活性,另一方面通过掺杂不同金属或金属氧化物调控光敏波长向可见光范围扩展来提高太阳光的利用率。由于二维二氧化钛纳米材料,如二氧化钛纳米片、二氧化钛纳米方块等,能够暴露更多的高活性晶面,具有更高的光催化活性,二氧化钛纳米片具有比纳米粒子更好地应用前景,对于二氧化钛纳米片的研究也备受关注。而单一的二氧化钛纳米材料的光敏波长一般在紫外区,而且由于分散性差、易堆叠而互相影响,从而降低光催化活性,不利于实际应用。因此,研发成本低、制备简单的高光催化活性的二氧化钛光催化剂具有重要的科学意义和应用价值。
二硫化钼(化学式为MoS2)纳米材料,具有二维层状结构,是应用最广泛的固体润滑剂之一。其剥离后的片状二维纳米材料,是性能优异的半导体纳米材料,除了具有大的比表面积,可以作为催化剂和生物抗体的载体,提高负载量,同时作为助催化剂也具有优良的电子传递性能。
目前,大多数的合成手段都是分开合成后,再将催化剂与载体进行复合,过程繁琐,产率不高。因此,对于原位复合制备具有优良催化性能的催化剂具有广泛的应用前景和重要的科学意义。
综上可知,在合适的载体上设计、制备高催化活性、高分散稳定性的二氧化钛纳米片是制备二氧化钛光催化剂的关键技术。
发明内容
本发明的目的在于提供一种无贵金属掺杂、成本低、制备简单、光催化活性高的光催化剂。
本发明采用的技术方案如下:
1. 一种二维磁性纳米光催化剂的制备方法,所述的二维磁性纳米光催化剂为铁掺杂二氧化钛纳米方块原位复合二硫化钼的二维纳米复合材料Fe-TiO2/MoS2,其特征在于,所述的Fe-TiO2/MoS2的制备步骤为:
(1)由于二硫化钼为二维层状结构,可以利用锂离子对其进行插层处理,以达到利于剥离从而制备片状结构二硫化钼薄层二维纳米材料的目的,因此,本发明首先取0.6 g二硫化钼粉末和0.2 ~ 2.0 mmol铁盐共同加入到3~10 mL正丁基锂溶液中,在氮气保护和30~ 60 ℃下,搅拌12 ~ 48小时,该反应是利用半径较小锂离子和半径较大的铁离子相继插层到二硫化钼中,将二硫化钼块体材料层层分离,反应充分后,得到反应后的溶液;
(2)利用非极性溶剂洗涤步骤(1)中反应后的溶液,使用孔径为450 μm的滤膜进行过滤,将所得固体溶于乙醇水溶液中,然后在30 ~ 60 ℃下进行水浴超声处理,将锂离子和铁离子插层的二硫化钼进行超声剥离,处理完后,再利用乙醇洗涤处理后的溶液,将半径较小的锂离子洗涤去掉后,真空干燥,得到铁插层的二硫化钼纳米材料,由于剥离后的二硫化钼片状二维薄层纳米材料,具有较大的比表面积,吸附了反应中的铁离子,因此所制得的铁插层的二硫化钼纳米材料为吸附有铁离子的二硫化钼片状二维纳米材料;
(3)取10 ~ 500 mg步骤(2)制得的铁插层的二硫化钼纳米材料加入到5 mL钛酸四丁酯中,搅拌1小时后,边搅拌边缓慢加入0.5 ~ 0.8 mL氢氟酸,然后160~180 ℃下在反应釜中反应18 ~ 20小时,使得二氧化钛纳米片在二硫化钼片状二维纳米材料上原位复合,形成复合纳米材料,由于二硫化钼片状二维纳米材料上吸附的铁离子在二氧化钛纳米片生长过程中,参与反应过程,得到了铁掺杂的二氧化钛纳米方块材料,并很好的分散在二硫化钼片状二维纳米材料上;
(4)将步骤(3)所得的反应产物,用超纯水和无水乙醇离心洗涤三次后,50 ℃下真空干燥,即制得Fe-TiO2/MoS2;
所述的正丁基锂溶液为正丁基锂的己烷溶液,浓度为1.6 mol/L;
所述的铁盐选自下列之一:硫酸铁、氯化铁、硝酸铁、乙酸铁;
所述的非极性溶剂选自下列之一:己烷、环己烷、四氯化碳、苯、甲苯;
所述的乙醇水溶液,该水溶液中乙醇和水的体积比为0.5~3(乙醇):1(水);
所述的水浴超声处理,处理时间为1小时。
本发明的有益成果
(1)本发明所述的光催化剂制备方法简单、快速,无贵金属掺杂、成本低,具有市场发展前景;
(2)本发明首次采用原位复合的方法制备了新型光催化剂Fe-TiO2/MoS2,该方法主要有三个优势:一是,由于铁在二氧化钛纳米方块上的原位生长而充分与二氧化钛纳米方块接触,利用铁的金属表面等离子体作用,有效阻止了光生电子-空穴对的复合,极大地提高了光催化活性,由于金属离子的作用,拓宽了光敏波长地范围,实现了在可见光区地光催化作用,极大地提高了太阳光地利用效率,解决了二维二氧化钛纳米材料虽然光催化效果好,但是在太阳光照射下光催化效果差的技术问题;二是,由于二硫化钼片状二维纳米材料的负载特性和二氧化钛纳米方块在其上的充分分散,极大地增大了二氧化钛纳米方块的光催化活性和解决了二维二氧化钛纳米材料不利于分散而降低光催化活性的技术问题;三是,由于铁离子在该过程中既作为插层材料又作为反应掺杂材料,最后采用原位复合的方法实现了该复合材料的一锅制备,不但节省了时间、材料损耗,而且使得制备的铁掺杂的二氧化钛纳米方块能够更好地均匀分散到二硫化钼片状二维纳米材料上面。因此,该材料的有效制备,具有重要的科学意义和应用价值;
(3)本发明制备的光催化剂Fe-TiO2/MoS2,由于光催化活性高、具有高效的光电转化效率,易于成膜,而且自身的生物相容性好、大的比表面积、高的表面介孔吸附特性,可以作为基质材料,制备各类传感器,如光电化学传感器、电致化学发光传感器、电化学传感器等,具有广泛的潜在使用价值。
具体实施方式
实施例1 Fe-TiO2/MoS2的制备
(1)取0.6 g二硫化钼粉末和0.2 mmol铁盐共同加入到3mL正丁基锂溶液中,在氮气保护和60 ℃下,搅拌12小时,得到反应后的溶液;
(2)利用非极性溶剂洗涤步骤(1)中反应后的溶液,然后在60 ℃下进行水浴超声处理,处理完后,再利用非极性溶剂洗涤处理后的溶液,真空干燥,得到铁插层的二硫化钼纳米材料;
(3)取500 mg步骤(2)制得的铁插层的二硫化钼纳米材料加入到5 mL钛酸四丁酯中,搅拌1小时后,边搅拌边缓慢加入0.5 mL氢氟酸,然后160 ℃下在反应釜中反应18小时;
(4)将步骤(3)所得的反应产物,用超纯水和无水乙醇离心洗涤三次后,50 ℃下真空干燥,即制得Fe-TiO2/MoS2;
所述的正丁基锂溶液为正丁基锂的己烷溶液,浓度为1.6 mol/L;
所述的铁盐为硫酸铁;
所述的非极性溶剂为己烷;
所述的水浴超声处理,处理时间为1小时。
实施例2 Fe-TiO2/MoS2的制备
(1)取0.6 g二硫化钼粉末和1.0 mmol铁盐共同加入到5 mL正丁基锂溶液中,在氮气保护和30 ℃下,搅拌24小时,得到反应后的溶液;
(2)利用非极性溶剂洗涤步骤(1)中反应后的溶液,然后在30 ℃下进行水浴超声处理,处理完后,再利用非极性溶剂洗涤处理后的溶液,真空干燥,得到铁插层的二硫化钼纳米材料;
(3)取200 mg步骤(2)制得的铁插层的二硫化钼纳米材料加入到5 mL钛酸四丁酯中,搅拌1小时后,边搅拌边缓慢加入0.6 mL氢氟酸,然后180 ℃下在反应釜中反应20小时;
(4)将步骤(3)所得的反应产物,用超纯水和无水乙醇离心洗涤三次后,50 ℃下真空干燥,即制得Fe-TiO2/MoS2;
所述的正丁基锂溶液为正丁基锂的己烷溶液,浓度为1.6 mol/L;
所述的铁盐为氯化铁;
所述的非极性溶剂为四氯化碳;
所述的水浴超声处理,处理时间为1小时。
实施例3 Fe-TiO2/MoS2的光催化活性测试
以 500 W 卤钨灯为光源,距离光催化反应器约 10 cm,光源与反应器之间置一滤光片,截掉波长小于 420 nm 的光。将 2 mg 实施例1制备的Fe-TiO2/MoS2加入到 50 mL 浓度为0.1 mmol/L 的甲基橙溶液中,超声分散 10 min,然后将料液置于暗室中搅拌 0.5 小时,确保样品表面吸附达到吸附-脱附平衡后,在光照下搅拌进行反应。每隔 10~20 min 取一次样,用孔径 0.45 µm 的滤膜过滤,用紫外-可见分光光度计测定滤液在波长为462 nm处的吸光度,根据溶液浓度与吸光度成正比计算不同反应时间的甲基橙溶液浓度和降解率,实验80 min 后脱色率达到 99 %以上,说明本发明所制备的Fe-TiO2/MoS2具有实际应用价值。
实施例4 Fe-TiO2/MoS2的光催化活性测试
以 500 W 卤钨灯为光源,距离光催化反应器约 10 cm,光源与反应器之间置一滤光片,截掉波长小于 420 nm 的光。将 2 mg 实施例2制备的Fe-TiO2/MoS2加入到 50 mL 浓度为0.1 mmol/L 的甲基橙溶液中,超声分散 10 min,然后将料液置于暗室中搅拌 0.5 小时,确保样品表面吸附达到吸附-脱附平衡后,在光照下搅拌进行反应。每隔 10~20 min 取一次样,用孔径 0.45 µm 的滤膜过滤,用紫外-可见分光光度计测定滤液在波长为462 nm处的吸光度,根据溶液浓度与吸光度成正比计算不同反应时间的甲基橙溶液浓度和降解率,实验80 min 后脱色率达到 99 %以上,说明本发明所制备的Fe-TiO2/MoS2具有实际应用价值。
Claims (1)
1.一种二维磁性纳米光催化剂的制备方法,所述的二维磁性纳米光催化剂为铁掺杂二氧化钛纳米方块原位复合二硫化钼的二维纳米复合材料Fe-TiO2/MoS2,其特征在于,所述的Fe-TiO2/MoS2的制备步骤为:
(1)取0.6 g二硫化钼粉末和0.2 ~ 2.0 mmol铁盐共同加入到3~10 mL正丁基锂溶液中,在氮气保护和30 ~ 60 ℃下,搅拌12 ~ 48小时,得到反应后的溶液;
(2)利用非极性溶剂洗涤步骤(1)中反应后的溶液,然后在30 ~ 60 ℃下进行水浴超声处理,处理完后,再利用非极性溶剂洗涤处理后的溶液,真空干燥,得到铁插层的二硫化钼纳米材料;
(3)取10 ~ 500 mg步骤(2)制得的铁插层的二硫化钼纳米材料加入到5 mL钛酸四丁酯中,搅拌1小时后,边搅拌边缓慢加入0.5 ~ 0.8 mL氢氟酸,然后160~180 ℃下在反应釜中反应18 ~ 20小时;
(4)将步骤(3)所得的反应产物,用超纯水和无水乙醇离心洗涤三次后,50 ℃下真空干燥,即制得Fe-TiO2/MoS2;
所述的正丁基锂溶液为正丁基锂的己烷溶液,浓度为1.6 mol/L;
所述的铁盐选自下列之一:硫酸铁、氯化铁、硝酸铁、乙酸铁;
所述的非极性溶剂选自下列之一:己烷、环己烷、四氯化碳、苯、甲苯;
所述的水浴超声处理,处理时间为1小时。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610521364.3A CN106179419B (zh) | 2016-07-05 | 2016-07-05 | 一种二维磁性纳米光催化剂的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610521364.3A CN106179419B (zh) | 2016-07-05 | 2016-07-05 | 一种二维磁性纳米光催化剂的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106179419A CN106179419A (zh) | 2016-12-07 |
CN106179419B true CN106179419B (zh) | 2018-11-23 |
Family
ID=57464708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610521364.3A Expired - Fee Related CN106179419B (zh) | 2016-07-05 | 2016-07-05 | 一种二维磁性纳米光催化剂的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106179419B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111109931B (zh) * | 2020-01-06 | 2022-05-03 | 江苏众恒可来比家具有限公司 | 一种自适应调节床垫 |
CN111377480B (zh) * | 2020-03-20 | 2023-08-18 | 苏州科技大学 | 铁(ii)掺杂硫化钼材料于自供能压电增强制氢中的应用 |
CN111913310B (zh) * | 2020-07-16 | 2024-04-09 | 清华-伯克利深圳学院筹备办公室 | 一种磁光调制器件和入射可见光的大相位差磁光调制方法 |
CN115709084B (zh) * | 2022-10-24 | 2024-02-06 | 河南师范大学 | 一种基于有性繁殖酵母调控的Fe-Mo异质结多核微纳米材料的制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103357425A (zh) * | 2013-07-10 | 2013-10-23 | 黑龙江大学 | 一种二硫化钼/二氧化钛纳米刺分级结构复合材料的制备方法 |
CN105688943A (zh) * | 2016-03-14 | 2016-06-22 | 西安建筑科技大学 | 一种层状MoS2-TiO2纳米复合材料的制备方法 |
-
2016
- 2016-07-05 CN CN201610521364.3A patent/CN106179419B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103357425A (zh) * | 2013-07-10 | 2013-10-23 | 黑龙江大学 | 一种二硫化钼/二氧化钛纳米刺分级结构复合材料的制备方法 |
CN105688943A (zh) * | 2016-03-14 | 2016-06-22 | 西安建筑科技大学 | 一种层状MoS2-TiO2纳米复合材料的制备方法 |
Non-Patent Citations (2)
Title |
---|
A.S.Golub et al..From single-layer dispersions of molybdenum disulfide towards ternary metal sulfides: incorporating copper and silver into a MoS2 matrix.《Solid State Ionics》.1999,第122卷第137–144页. * |
Facile one-pot production of facet coupled MoS2/TiO2 nanosheets for organic pollutants degradation under visible LED light irradiation;Le Li et al.;《scienceknowconferences Sustainable Materials》;20150717;第1-4页 * |
Also Published As
Publication number | Publication date |
---|---|
CN106179419A (zh) | 2016-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106179418B (zh) | 一种负载型双金属共掺杂纳米光催化剂的制备方法 | |
Wang et al. | Novel BiSbO4/BiOBr nanoarchitecture with enhanced visible-light driven photocatalytic performance: oxygen-induced pathway of activation and mechanism unveiling | |
Zhao et al. | Gear-shaped mesoporous NH2-MIL-53 (Al)/CdS PN heterojunctions as efficient visible-light-driven photocatalysts | |
Shangguan et al. | Photocatalytic hydrogen evolution from water on nanocomposites incorporating cadmium sulfide into the interlayer | |
Hemmatpour et al. | A Z-scheme CdS/BiVO4 photocatalysis towards Eriochrome black T: An experimental design and mechanism study | |
Liao et al. | Enhanced photocatalytic performance through the ferroelectric synergistic effect of pn heterojunction BiFeO3/TiO2 under visible-light irradiation | |
Zhao et al. | Bi4O5Br2 nanoflower and CdWO4 nanorod heterojunctions for photocatalytic synthesis of ammonia | |
CN106018514B (zh) | 一种基于铜掺杂纳米光电材料的光电化学己烯雌酚传感器的制备方法 | |
CN106179419B (zh) | 一种二维磁性纳米光催化剂的制备方法 | |
Sun et al. | Designing double Z-scheme heterojunction of g-C3N4/Bi2MoO6/Bi2WO6 for efficient visible-light photocatalysis of organic pollutants | |
CN105642331B (zh) | 一种二维纳米片状光催化剂的制备方法 | |
Jiao et al. | Rodlike AgI/Ag2Mo2O7 heterojunctions with enhanced visible-light-driven photocatalytic activity | |
Hussain et al. | The synthesis of a BiOCl x Br 1− x nanostructure photocatalyst with high surface area for the enhanced visible-light photocatalytic reduction of Cr (vi) | |
CN103252244A (zh) | 一种可见光响应型氯氧铋光催化剂的制备及其应用方法 | |
CN106145193B (zh) | 一种双金属共掺杂二维纳米电极材料的制备方法 | |
Hu et al. | Photocatalytic degradation mechanism of the visible-light responsive BiVO 4/TiO 2 core–shell heterojunction photocatalyst | |
Xia et al. | Visible light assisted heterojunction composite of AgI and CDs doped ZIF-8 metal-organic framework for photocatalytic degradation of organic dye | |
CN105618105A (zh) | 一种二元金属共掺杂光催化剂的制备方法 | |
El-Yazeed et al. | Fabrication and characterization of reduced graphene-BiVO4 nanocomposites for enhancing visible light photocatalytic and antibacterial activity | |
CN105618103B (zh) | 一种二维磁性光催化剂的制备方法 | |
Rameshbabu et al. | BiOCl ultrathin nanosheets modified with Fe3+ for enhanced visible light driven photocatalytic activity | |
CN106179417B (zh) | 一种钴掺杂二维纳米光催化剂的制备方法 | |
Zhou et al. | Construction of AgI/Bi2MoO6/AgBi (MoO4) 2 multi-heterostructure composite nanosheets for visible-light photocatalysis | |
CN107754837B (zh) | 单层氮化碳纳米片和铋等离子体联合修饰型氧化铋基电极及其制备和应用 | |
CN106179416B (zh) | 一种二维纳米光催化剂的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into 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 |
Granted publication date: 20181123 |
|
CF01 | Termination of patent right due to non-payment of annual fee |