CN108772104A - 一种棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备方法 - Google Patents
一种棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备方法 Download PDFInfo
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- CN108772104A CN108772104A CN201810600128.XA CN201810600128A CN108772104A CN 108772104 A CN108772104 A CN 108772104A CN 201810600128 A CN201810600128 A CN 201810600128A CN 108772104 A CN108772104 A CN 108772104A
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- ntp
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- cadmium sulfide
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- dish alkene
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- 229910052980 cadmium sulfide Inorganic materials 0.000 title claims abstract description 87
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 150000001336 alkenes Chemical class 0.000 title claims abstract description 69
- 229920000642 polymer Polymers 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 239000003054 catalyst Substances 0.000 title claims abstract description 21
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 31
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 27
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 26
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 15
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 239000012265 solid product Substances 0.000 claims description 9
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 claims description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000003643 water by type Substances 0.000 claims description 8
- SKOWZLGOFVSKLB-UHFFFAOYSA-N hypodiboric acid Chemical compound OB(O)B(O)O SKOWZLGOFVSKLB-UHFFFAOYSA-N 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 229910021589 Copper(I) bromide Inorganic materials 0.000 claims description 6
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- YKYOUMDCQGMQQO-UHFFFAOYSA-L cadmium dichloride Chemical compound Cl[Cd]Cl YKYOUMDCQGMQQO-UHFFFAOYSA-L 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000003208 petroleum Substances 0.000 claims description 6
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- 230000035484 reaction time Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- 235000010288 sodium nitrite Nutrition 0.000 claims description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- FANCTJAFZSYTIS-IQUVVAJASA-N (1r,3s,5z)-5-[(2e)-2-[(1r,3as,7ar)-7a-methyl-1-[(2r)-4-(phenylsulfonimidoyl)butan-2-yl]-2,3,3a,5,6,7-hexahydro-1h-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol Chemical compound C([C@@H](C)[C@@H]1[C@]2(CCCC(/[C@@H]2CC1)=C\C=C\1C([C@@H](O)C[C@H](O)C/1)=C)C)CS(=N)(=O)C1=CC=CC=C1 FANCTJAFZSYTIS-IQUVVAJASA-N 0.000 claims description 3
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 3
- 238000007445 Chromatographic isolation Methods 0.000 claims description 3
- 239000007832 Na2SO4 Substances 0.000 claims description 3
- 229910000564 Raney nickel Inorganic materials 0.000 claims description 3
- YLEIFZAVNWDOBM-ZTNXSLBXSA-N ac1l9hc7 Chemical compound C([C@H]12)C[C@@H](C([C@@H](O)CC3)(C)C)[C@@]43C[C@@]14CC[C@@]1(C)[C@@]2(C)C[C@@H]2O[C@]3(O)[C@H](O)C(C)(C)O[C@@H]3[C@@H](C)[C@H]12 YLEIFZAVNWDOBM-ZTNXSLBXSA-N 0.000 claims description 3
- SRVFFFJZQVENJC-IHRRRGAJSA-N aloxistatin Chemical compound CCOC(=O)[C@H]1O[C@@H]1C(=O)N[C@@H](CC(C)C)C(=O)NCCC(C)C SRVFFFJZQVENJC-IHRRRGAJSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- OSVHLUXLWQLPIY-KBAYOESNSA-N butyl 2-[(6aR,9R,10aR)-1-hydroxy-9-(hydroxymethyl)-6,6-dimethyl-6a,7,8,9,10,10a-hexahydrobenzo[c]chromen-3-yl]-2-methylpropanoate Chemical compound C(CCC)OC(C(C)(C)C1=CC(=C2[C@H]3[C@H](C(OC2=C1)(C)C)CC[C@H](C3)CO)O)=O OSVHLUXLWQLPIY-KBAYOESNSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- NKNDPYCGAZPOFS-UHFFFAOYSA-M copper(i) bromide Chemical compound Br[Cu] NKNDPYCGAZPOFS-UHFFFAOYSA-M 0.000 claims description 3
- 239000012043 crude product Substances 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000002390 rotary evaporation Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000003480 eluent Substances 0.000 claims description 2
- 150000002171 ethylene diamines Chemical class 0.000 claims description 2
- 125000001967 indiganyl group Chemical group [H][In]([H])[*] 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 238000010025 steaming Methods 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- 230000003111 delayed effect Effects 0.000 claims 1
- 239000011941 photocatalyst Substances 0.000 abstract description 8
- 230000001699 photocatalysis Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007146 photocatalysis Methods 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 description 21
- 229910052739 hydrogen Inorganic materials 0.000 description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 6
- NGDCLPXRKSWRPY-UHFFFAOYSA-N Triptycene Chemical compound C12=CC=CC=C2C2C3=CC=CC=C3C1C1=CC=CC=C12 NGDCLPXRKSWRPY-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 239000011157 advanced composite material Substances 0.000 description 2
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- 229910052786 argon Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003760 magnetic stirring Methods 0.000 description 2
- 239000012621 metal-organic framework Substances 0.000 description 2
- 239000002114 nanocomposite Substances 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229940101006 anhydrous sodium sulfite Drugs 0.000 description 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
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- 239000002127 nanobelt Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000000926 separation method Methods 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
- 229940001482 sodium sulfite Drugs 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005556 structure-activity relationship Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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
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- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- 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
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Abstract
本发明涉及一种棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备,包括步骤:棒状硫化镉CdS NRs的制备、三碟烯聚合物NTP的制备和棒状硫化镉CdS NRs/三碟烯聚合物NTP(CdS@NTP)复合光催化剂的制备。本发明的有益效果是:该制备方法较为简单,制备条件容易控制,所制备的棒状硫化镉CdS NRs/三碟烯聚合物NTP复合催化剂具有无二次污染,光催化效率高等优点,具有一定的应用价值。
Description
技术领域
本发明属于纳米材料制备及应用技术领域,涉及一种棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备方法,同属于有机化学合成领域。
背景技术
孔道尺寸在2nm以下,具有规则孔道结构的微孔材料的开发和合成一直是材料学研究领域的热点之一。作为新兴的微孔材料,金属有机骨架(MOFs)和有机微孔聚合物因具有大的比表面积、合成的多样性和易引入功能基团等优点,在气体吸附和分离、催化和传感等领域备受瞩目。三蝶烯具有独特的三维刚性结构,是由3个苯环通过桥连碳原子组成,其中每个苯环间的夹角均为120°,该化合物具有3个开放式富电子空腔。三蝶烯的骨架结构非常稳定,因此三蝶烯及其衍生物具有良好的热稳定性和化学稳定性。以三蝶烯及其衍生物作为出发点合成了一系列新型三蝶烯的配合物和聚合物,并选取了其中一类具有良好热稳定性和溶剂稳定性的聚合物作为载体应用在光催化分解水制氢的方向上,取得了很好的催化反应活性,具有重要现实意义和巨大应用价值。
硫化镉(CdS)是一种典型的Ⅱ-Ⅵ族直接带隙宽禁带压电半导体材料,室温下体相硫化镉的带隙约为2.45eV,是一种良好的太阳能电池窗口材料。因其具有特殊的光学、电学性质,已被广泛应用于各种发光二极管、光伏器件、光学探测器、传感器、荧光探针以及光催化等领域。作为一种应用广泛的半导体材料,硫化镉的制备引起了各国科研工作者的重视。而其性能与晶粒的形貌和尺寸密切相关,因此对硫化镉形貌的控制研究成为重点,现阶段制备CdS纳米结构的可控合成方法主要有微乳液法、固相合成法、水热法、前驱体法、液晶模板法、聚合物控制生长法等。迄今为止,在特殊的生长条件下,已经成功地合成出了球形CdS,空心球状CdS,棒状CdS,等级状CdS,CdS纳米带等显微结构,不同形貌CdS表现了明显不同的特性。科学家们将设计合成新型多功能材料、丰富有机化学的合成方法以及探索基础单元与半导体功能材料之间的构效关系作为主要的研究目标。在合成这些功能材料的基础上,寻找到一种新的应用领域显得十分的重要。
文献调研发现,棒状CdS-NTP纳米复合材料的光催化产氢活性尚未彻底研究。这里我们制备一种在棒状硫化镉上负载新型三碟烯聚合物的复合光催化剂,新型三碟烯聚合物NTP稳定性高,以其为研究对象,结果表明,所制备的CdS-NTP纳米复合材料显示出优秀的产氢效能。因此,研究和开发这种新型的复合光催化剂是十分有意义的。
发明内容
本发明要解决的技术问题是:基于上述问题,本发明提供一种棒状硫化镉CdSNRs/三碟烯聚合物NTP新型复合光催化剂的制备方法。
本发明解决其技术问题所采用的一个技术方案是:一种棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备方法,包括以下步骤:
(1)棒状硫化镉CdS NRs的制备
将CdCl2·2.5H2O和CH4N2S加入到60mL乙二胺的100mL高压釜中密封,转移高压釜160℃,反应时间48h。.将所得黄色粉末用水和乙醇洗涤以除去杂质,离心过滤干燥得产品;
(2)NTP的制备
a:将三碟烯置于100mL三口烧瓶中,加入浓HNO3(50mL),混合物在75℃下加热搅拌24h,并且回流冷凝。反应液为棕色溶液,将其冷却至室温,然后倒入H2O(1000mL)中搅拌30min。收集沉淀物,用蒸馏水洗涤,然后在空气中干燥。粗产物用洗脱剂二氯甲烷/石油醚(1:1)提纯,得到白色固体产物2,6,14-三硝基三碟烯(2a)和2,7,14-三硝基三碟烯(2b)。
b:将化合物2a或2b置于50mL峰管中,加入雷尼镍Ni(~1.0g),在氮气保护下,使其溶解于新蒸无水THF(20mL),并用针管注射水合肼N2H4·H2O至溶液中。在60℃下加热反应,直至淬灭结束后,将混合物冷却至室温,过滤。旋转蒸发浓缩滤液以除去溶剂,得到定量产率的白色固体产物2,6,14-三氨基三碟烯(3a)和2,7,14-三氨基三碟烯(3b)。
c:将化合物3a或3b置于圆底烧瓶中,加入水(10mL),再加入浓氢溴酸HBr(3mL),使其在冰盐浴中冷却;向其中缓慢滴加亚硝酸钠NaNO2的水溶液(5mL),搅拌20分钟后,将混合物缓慢加入到溴化亚铜CuBr和浓氢溴酸HBr(5mL)的回流混合物中。将混合物回流2h,冷却,然后用二氯甲烷(30mL×3)萃取。该合并的萃取液用水(20mL×2)洗涤,然后用无水硫酸钠Na2SO4干燥,过滤,旋蒸除去溶剂。将产物进行色谱分离,用二氯甲烷和石油醚(1:10)作为洗脱液,得到白色固体产物2,6,14-三溴三碟烯(4a)和2,7,14-三溴三碟烯(4b)。
d:将4a或4b加入峰管中,再依次加入1,4-苯二硼酸,乙酸钯Pd(OAc)2,三苯基磷PPh3,碳酸钾K2CO3(物质依次摩尔比为1:1.5:0.0321:0.075:7.929),抽真空换氮气,使其溶解于25mL四氢呋喃THF中,再注入10mL去离子水,升温至65℃,反应12h。冷却至室温,抽滤,THF洗涤两次,水洗两次,无水乙醇洗两次,于50℃真空干燥10h,得到棕色蓬松状聚合物5a和5b。
(3)棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备
将一定质量的棒状硫化镉和2,6,14-三溴三碟烯加入峰管中,再依次加入1,4-苯二硼酸,乙酸钯Pd(OAc)2,三苯基磷PPh3,碳酸钾K2CO3,抽真空换氮气,使其溶解于25mL四氢呋喃THF中,再注入10mL去离子水,升温至65℃,反应12h。冷却至室温,离心,THF洗涤两次,水洗两次,无水乙醇洗两次,于50℃干燥10h,得到不同质量比的黄棕色新型复合催化剂CdS-NTP。
进一步地,所述的步骤(1)中CdCl2·2.5H2O和CH4N2S的摩尔比为1:1;
进一步地,所述的步骤(2)d中产物4a或4b与1,4-苯二硼酸,乙酸钯Pd(OAc)2,三苯基磷PPh3,碳酸钾K2CO3物质的依次摩尔比为1:1.5:0.0321:0.075:7.929;
进一步地,所述的步骤(3)中CdS:2,6,14-三溴三碟烯质量比分别为3:1、2:1、1:1;
进一步地,所述的步骤(3)中条件温度为65℃,无氧操作条件,反应时间为12h。
棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP新型复合光催化剂的应用,用于光催化分解水制氢,按照下述步骤进行:
a:光催化分解水制氢系统分为光源,气体产生及收集装置三部分,气体产生及收集装置包含光反应器及气体循环系统两部分,光催化分解水制氢系统中的气体分析装置是气象色谱,目标检测物是氢气和氧气,色谱柱选用5A分子筛,载气选用高纯氩气(99.999%Ar)。本实验产氢设备由北京泊菲莱科技有限公司提供。
b:在磁力搅拌下将新型复合材料棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP与牺牲剂硫化钠Na2S和亚硫酸钠Na2SO3溶于100mL去离子水中,超声30min,采用强力磁力搅拌保持颗粒分散均匀,对产氢反应器进行抽真空,保压操作,在氙灯照射下,每20min自动进样一次,产氢持续反应3h。用反应3h的产生氢气的摩尔量来衡量不同质量比的CdS-NTP复合光催化剂的光催化产氢活性。
本发明的有益效果是:该制备方法较为简单,制备条件容易控制,所制备的棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP复合光催化剂具有无污染,催化效率高等优点,具有一定的应用价值。附图说明
下面结合附图对本发明进一步说明。
图1是本发明实施例1制备得到的CdS NRs透射电镜图(a),NTP的透射电镜图(b)和CdS NRs-NTP扫描电镜图(c);
图2是本发明实施例1制备得到的棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP复合光催化剂的X射线衍射图;
图3是本发明实施例1制备得到的棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP复合光催化剂产氢的活性图。
具体实施方式
现在结合具体实施例对本发明作进一步说明,以下实施例旨在说明本发明而不是对本发明的进一步限定。
实施例1
(1)棒状硫化镉CdS NRs的制备
将20.25mmol CdCl2·2.5H2O(4.62g)和60.75mmol CH4N2S(4.62g)加入到60mL乙二胺的100mL高压釜中密封,转移高压釜160℃,反应时间48h。.将所得黄色粉末用水和乙醇洗涤以除去杂质,离心过滤干燥得产品;
(2)NTP的制备
a:将三碟烯(1.25g,5mmol)置于三口烧瓶中,加入浓HNO3 50mL,混合物在75℃下加热搅拌24h,并且回流冷凝。反应液为棕色溶液,将其冷却至室温,然后倒入H2O(1000mL)中搅拌30min。收集沉淀物,用蒸馏水洗涤,然后在空气中干燥。粗产物用洗脱剂二氯甲烷/石油醚(1:1)提纯,得到白色固体产物2,6,14-三硝基三碟烯(2a)和2,7,14-三硝基三碟烯(2b)。
b:将化合物2a或2b(1.0g,2.6mmol)置于50mL峰管中,加入雷尼镍Ni(~1.0g),在氮气保护下,使其溶解于新蒸无水THF(20mL),并用针管注射水合肼N2H4·H2O(1.5mL)至溶液中。在60℃下加热反应,直至淬灭结束后,将混合物冷却至室温,过滤。旋转蒸发浓缩滤液以除去溶剂,得到定量产率的白色固体产物2,6,14-三氨基三碟烯(3a)和2,7,14-三氨基三碟烯(3b)。
c:将化合物3a或3b(1.0g,3.6mmol)置于圆底烧瓶中,加入水(10mL),再加入浓氢溴酸HBr(3mL),使其在冰盐浴中冷却;向其中缓慢滴加亚硝酸钠NaNO2(0.8g,12.6mmol)的水溶液(5mL),搅拌20min后,将混合物缓慢加入到溴化亚铜CuBr(2.2g,15.0mmol)和浓氢溴酸HBr(5mL)的回流混合物中。将混合物回流2h,冷却,然后用二氯甲烷(30mL×3)萃取。该合并的萃取液用水(20mL×2)洗涤,然后用无水硫酸钠Na2SO4干燥,过滤,旋蒸除去溶剂。将产物进行色谱分离,用二氯甲烷和石油醚(1:10)作为洗脱液,得到白色固体产物2,6,14-三溴三碟烯(4a)和2,7,14-三溴三碟烯(4b)。
d:将4a或4b(0.2g,0.4mmol)加入峰管中,再加入1,4-苯二硼酸(0.108g,0.65mmol),乙酸钯Pd(OAc)2(0.0029g,0.0128mmol),三苯基磷PPh3(0.0079g,0.03mmol),碳酸钾K2CO3(0.4383g,3.1716mmol),抽真空换氮气,使其溶解于25mL四氢呋喃THF中,再注入10mL去离子水,升温至65℃,反应12h。冷却至室温,抽滤,THF洗涤两次,水洗两次,无水乙醇洗两次,于50℃真空干燥10h,得到棕色蓬松状聚合物5a和5b。
(3)棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备
将棒状硫化镉(0.2g,1.38mmol)和0.2g的2,6,14-三溴三碟烯(0.2g,0.4mmol)加入峰管中,,再加入1,4-苯二硼酸(0.108g,0.65mmol),乙酸钯Pd(OAc)2(0.0029g,0.0128mmol),三苯基磷PPh3(0.0079g,0.03mmol),碳酸钾K2CO3(0.4383g,3.1716mmol),抽真空换氮气,使其溶解于25mL四氢呋喃THF中,再注入10mL去离子水,升温至65℃,反应12h。冷却至室温,离心,THF洗涤两次,水洗两次,无水乙醇洗两次,于50℃干燥10h,得到质量比为1:1的黄棕色新型复合催化剂CdS1NTP1。
扫描投射电镜图如图1所示,从图可以看出,本实施方式制备的棒状硫化镉CdSNRs/三碟烯微孔聚合物NTP复合光催化剂的形貌为棒状硫化镉CdS NRs表面负载球状三碟烯聚合物NTP,且分布较为均匀,图中观察到NTP球形发生微变,说明CdS和NTP之间存在一定的相互作用。
X射线衍射图谱如图2所示,由图可知,制备的棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP复合光催化剂的XRD衍射图中可看到在24.8°,26.4°,28.1°,36.7°,43.8°,47.8°,52.0°,53.9°出现棒状硫化镉CdS NRs的特征衍射峰。因此,可以证明三碟烯聚合物NTP与棒状硫化镉CdS NRs复合在一起,并且棒状硫化镉CdS NRs未改变自身晶型,这与电镜的结果一致。
(4)光催化反应
在磁力搅拌下将10mg质量比为3:1的CdS2NTP1复合材料和硫化钠Na2S(2.7314g,25mmol),无水亚硫酸钠Na2SO3(3.1510g,35mmol)溶于100mL去离子水中,超声30min,采用强力磁力搅拌保持颗粒分散均匀,对产氢反应器进行抽真空,保压操作,在氙灯照射下,每20min自动进样一次,产氢持续反应3h,进行9次氢气采集。通过比较光反应3h的产生氢气的摩尔量来衡量不同质量比的复合光催化剂的光催化产氢活性。
用以上方法对不同质量比(1:1,2:1,3:1)的棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂以及单纯的NTP和CdS的产氢活性进行比较,由图3可见,在3h时产氢量累计达到体积70.23mL,摩尔量3135.46μmol,可见所制备的棒状CdS@NTP复合光催化剂具有较高的光催化活性。
Claims (5)
1.一种棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备方法,其特征在于,包括以下步骤:
(1)棒状硫化镉CdS NRs的制备
将CdCl2·2.5H2O和CH4N2S加入到60mL乙二胺的100mL高压釜中密封,转移高压釜160℃,反应时间48h。.将所得黄色粉末用水和乙醇洗涤以除去杂质,离心过滤干燥得产品;
(2)NTP的制备
a:将三碟烯置于100mL三口烧瓶中,加入浓HNO3(50mL),混合物在75℃下加热搅拌24h,并且回流冷凝。反应液为棕色溶液,将其冷却至室温,然后倒入H2O(1000mL)中搅拌30min。收集沉淀物,用蒸馏水洗涤,然后在空气中干燥。粗产物用洗脱剂二氯甲烷/石油醚(1:1)提纯,得到白色固体产物2,6,14-三硝基三碟烯(2a)和2,7,14-三硝基三碟烯(2b)。
b:将化合物2a或2b置于50mL峰管中,加入雷尼镍Ni(~1.0g),在氮气保护下,使其溶解于新蒸无水THF(20mL),并用针管注射水合肼N2H4·H2O至溶液中。在60℃下加热反应,直至淬灭结束后,将混合物冷却至室温,过滤。旋转蒸发浓缩滤液以除去溶剂,得到定量产率的白色固体产物2,6,14-三氨基三碟烯(3a)和2,7,14-三氨基三碟烯(3b)。
c:将化合物3a或3b置于圆底烧瓶中,加入水(10mL),再加入浓氢溴酸HBr(3mL),使其在冰盐浴中冷却;向其中缓慢滴加亚硝酸钠NaNO2的水溶液(5mL),搅拌20min后,将混合物缓慢加入到溴化亚铜CuBr和浓氢溴酸HBr(5mL)的回流混合物中。将混合物回流2h,冷却,然后用二氯甲烷(30mL×3)萃取。该合并的萃取液用水(20mL×2)洗涤,然后用无水硫酸钠Na2SO4干燥,过滤,旋蒸除去溶剂。将产物进行色谱分离,用二氯甲烷和石油醚(1:10)作为洗脱液,得到白色固体产物2,6,14-三溴三碟烯(4a)和2,7,14-三溴三碟烯(4b)。
d:将4a或4b加入峰管中,再依次加入1,4-苯二硼酸,乙酸钯Pd(OAc)2,三苯基磷PPh3,碳酸钾K2CO3(物质依次摩尔比为1:1.5:0.0321:0.075:7.929),抽真空换氮气,使其溶解于25mL四氢呋喃THF中,再注入10mL去离子水,升温至65℃,反应12h。冷却至室温,抽滤,THF洗涤两次,水洗两次,无水乙醇洗两次,于50℃真空干燥10h,得到棕色蓬松状聚合物5a和5b。
(3)棒状硫化镉CdS NRs/三碟烯聚合物NTP新型复合光催化剂的制备
将一定质量的棒状硫化镉和2,6,14-三溴三碟烯加入峰管中,再依次加入1,4-苯二硼酸,乙酸钯Pd(OAc)2,三苯基磷PPh3,碳酸钾K2CO3,抽真空换氮气,使其溶解于25ml四氢呋喃THF中,再注入10mL去离子水,升温至65℃,反应12h。冷却至室温,离心,THF洗涤两次,水洗两次,无水乙醇洗两次,于50℃干燥10h,得到不同质量比的黄棕色新型复合催化剂CdS-NTP。
2.根据权利要求1所述的一种棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP新型复合光催化剂的制备方法,其特征是:所述的步骤(1)中CdCl2·2.5H2O和CH4N2S的摩尔比为1:1。
3.根据权利要求1所述的一种棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP新型复合光催化剂的制备方法,其特征是:所述的步骤(2)d中4a或4b与1,4-苯二硼酸,乙酸钯Pd(OAc)2,三苯基磷PPh3,碳酸钾K2CO3物质的依次摩尔比为1:1.5:0.0321:0.075:7.929;。
4.根据权利要求1所述的一种棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP新型复合光催化剂的制备方法,其特征是:所述的步骤(3)中CdS:2,6,14-三溴三碟烯质量比分别为3:1、2:1、1:1。
5.根据权利要求1所述的一种棒状硫化镉CdS NRs/三碟烯微孔聚合物NTP新型复合光催化剂的制备方法,其特征是:条件温度为65℃,无氧条件操作,反应时间为12h。
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