CN105061474B - 一种铜配合物及其制备方法和应用 - Google Patents
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- 150000004699 copper complex Chemical class 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229960000907 methylthioninium chloride Drugs 0.000 claims abstract description 19
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 16
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000015556 catabolic process Effects 0.000 claims abstract description 12
- 238000006731 degradation reaction Methods 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 8
- 239000001045 blue dye Substances 0.000 claims abstract description 6
- 239000000706 filtrate Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims abstract description 6
- 239000001384 succinic acid Substances 0.000 claims abstract description 6
- 229910021592 Copper(II) chloride Inorganic materials 0.000 claims abstract description 3
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims abstract description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluenecarboxylic acid Natural products CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 claims description 10
- 230000003197 catalytic effect Effects 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 5
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims description 3
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 15
- 239000000975 dye Substances 0.000 abstract description 8
- 230000036561 sun exposure Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 125000004430 oxygen atom Chemical group O* 0.000 abstract description 5
- 239000003054 catalyst Substances 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001431 copper ion Inorganic materials 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 6
- 238000004043 dyeing Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- AGIJRRREJXSQJR-UHFFFAOYSA-N 2h-thiazine Chemical compound N1SC=CC=C1 AGIJRRREJXSQJR-UHFFFAOYSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002480 Cu-O Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 244000283207 Indigofera tinctoria Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000002776 aggregation Effects 0.000 description 1
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- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- MGIWDIMSTXWOCO-UHFFFAOYSA-N butanedioic acid;copper Chemical compound [Cu].OC(=O)CCC(O)=O MGIWDIMSTXWOCO-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005564 crystal structure determination Methods 0.000 description 1
- 238000002447 crystallographic data Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002338 polyhydroxyethylmethacrylate Polymers 0.000 description 1
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- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010865 sewage Substances 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
- 238000010129 solution processing Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F1/00—Compounds containing elements of Groups 1 or 11 of the Periodic Table
- C07F1/005—Compounds containing elements of Groups 1 or 11 of the Periodic Table without C-Metal linkages
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- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
-
- 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
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/10—Complexes comprising metals of Group I (IA or IB) as the central metal
- B01J2531/16—Copper
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- Health & Medical Sciences (AREA)
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
本发明涉及一种铜配合物及其制备方法,结构简式为:[Cu(C20O8H17)2(DMF)(H2O)]·DMF·H2O,其中C20O8H17代表2,3‑二(4‑甲基‑苯甲酸基)丁二酸根,DMF代表N,N’‑二甲基甲酰胺;该配合物属于单斜晶系,P21空间群,铜离子的配位构型为四配位平面四边形,分别与两个2,3‑二(4‑甲基‑苯甲酸基)丁二酸根上的氧原子、一个DMF上的氧原子及一个水分子配位;该配合物的制备是将CuCl2·2H2O,2,3‑二(4‑甲基‑苯甲酸基)丁二酸和KOH三者配成溶液后混合,室温搅拌,过滤,滤液于4℃静置,15天后有晶体析出,产率可达60%;在室温、日光照射下该配合物对亚甲基蓝染料具有很好的降解效果,可以用作降解亚甲基蓝染料的催化剂。
Description
技术领域
本发明涉及铜配合物,具体涉及一种基于铜(II)离子与2,3-二(4-甲基-苯甲酸基)丁二酸构筑的铜配合物及其制备方法,以及该铜配合物在催化降解亚甲基蓝染料中的应用。
背景技术
我国是全球染料业第一大国,印染废水已成为我国工业废水主要来源之一。印染废水中含有大量以芳环为母体的有机组分,它们的处理和降解已成为当前环境工作的重点与难点之一。以亚甲基蓝为例,亚甲基蓝(MB)是一种硫氮杂苯染料,广泛应用于化学指示剂、染料、生物染色剂和药物等方面,不易被降解,是印染废水的典型代表,容易引起一系列环境问题。目前,国内外处理印染废水的主要方法包括物理法、化学法、物理化学法、生物化学法等。其中,光催化降解法是近几十年发展起来的处理污水的新方法。光催化降解法能有效降解多种有机污染物并将其矿化为CO2、H2O或毒性更小的有机物,是一种节能、高效、污染物降解彻底的处理方法。常用的光催化降解催化剂包括金属氧化物、硫化物、配合物和分子筛等,其中金属配合物类光催化剂由于本身易形成超分子聚集体,易于过滤,而且其多孔、多层、网状等特殊的结构使其具有较大比表面积,使催化活性的点位有所增加,并使反应中产物或底物具有较快的扩散速度,可有效提高其再生和回收效率,因此研究这类光催化剂的分子结构和光催化活性之间的规律,可以为设计和合成具有高效催化活性的催化剂提供理论借鉴和实际帮助。
发明内容
本发明的目的是提供一种铜配合物及其制备方法,以及该铜配合物在催化降解亚甲基蓝染料中的应用。
本发明提供的一种铜配合物,结构简式为:[Cu(C20O8H17)2(DMF)(H2O)]·DMF·H2O,其中C20O8H17代表配体2,3-二(4-甲基-苯甲酸基)丁二酸根,DMF代表N,N’-二甲基甲酰胺。其化学结构式为:
该配合物的晶体属于单斜晶系,空间群为P21,晶胞参数为: α=γ=90°,β=93.886(3)°。不对称单元包括一个二价铜离子,两个2,3-二(4-甲基-苯甲酸基)丁二酸根,两个DMF及两个水分子。其中铜离子的配位构型为四配位平面四边形,分别与两个2,3-二(4-甲基-苯甲酸基)丁二酸根上的氧原子、一个DMF上的氧原子及一个水分子配位。Cu-O键长的范围为 上述方法制备的配合物在常温常压下可稳定存在且不溶于水。在室温条件、日光照射下对亚甲基蓝染料具有很好的降解效果,可以用作降解亚甲基蓝染料的催化剂。
本发明提供的一种铜配合物的制备方法,包括如下步骤:
(1)按摩尔比1:1~2:1~2取CuCl2·2H2O、2,3-二(4-甲基-苯甲酸基)丁二酸和KOH,分别溶于甲醇、DMF和水中,再将它们混合;
(2)室温搅拌至少12h,得到蓝色透明溶液,过滤收集滤液,将滤液静置于4℃的冰箱中,15天后有蓝色块状晶体析出,过滤收集,蒸馏水洗涤,干燥,产率可达60%。
CuCl2·2H2O,2,3-二(4-甲基-苯甲酸基)丁二酸和KOH的摩尔比为1︰2︰2时产率最高;对应的溶剂必须分别为甲醇、DMF和水才能得到本发明的单核铜配合物,更换溶剂,如将甲醇更换为乙醇等均不能获得本发明的单核铜配合物。
本发明的优点和效果:
本发明提供的铜配合物是基于2,3-二(4-甲基-苯甲酸基)丁二酸配体构成的一种新配合物,使用常规化学合成方法,制备方法工艺简单,样品稳定性好,纯度高,成本低,推广应用前景良好。在常温、日光照射条件下可快速催化降解亚甲基蓝染料,42分钟降解率可达77%。
附图说明
图1本发明配合物[Cu(C20O8H17)2(DMF)(H2O)]·DMF·H2O的不对称单元结构图。
图2本发明配合物存在下,在室温条件日光照射下亚甲基蓝溶液的紫外吸收光谱。
图3室温条件日光照射下,本发明配合物对亚甲基蓝的催化降解以及不加配合物的对比试验。
具体实施方式
下面结合附图和实例对本发明作进一步说明。
实施例1.取2mL 0.125mol/L 2,3-二(4-甲基-苯甲酸基)丁二酸的DMF溶液置于圆底烧瓶中,向其中缓慢加入4mL 0.0325mol/L的CuCl2·2H2O甲醇溶液,最后加入0.5mL 0.5mol/L的KOH水溶液,室温搅拌14h后过滤,得到蓝色滤液,放于4℃冰箱中静置,15天后有蓝色块状晶体析出,过滤收集,蒸馏水洗涤,室温干燥,产率60%。
铜配合物的结构测定:
晶体结构测定采用Bruker Apex型X-射线单晶衍射仪,使用经过石墨单色化的Mo-Kα射线为入射辐射,以ω-φ扫描方式收集衍射点,经过最小二乘法修正得到晶胞参数,从差值Fourier电子密度图利用SHELXL-97直接法解得晶体结构,并经Lorentz和极化效应修正。C原子采用理论加氢,水分子中O原子上的氢由差值Fourier合成给出,并固定在母原子上。详细的晶体测定数据见表1。晶体结构见图1。
表1配合物的晶体学数据
实施例2:本发明配合物在室温、日光照射条件下对亚甲基蓝染料的催化降解。
室温条件下,将15ml 0.03mmol/L的亚甲基蓝溶液在黑暗处机械搅拌10分钟,测其吸光度,再将1.5mg本发明配合物分散到亚甲基蓝溶液中得到悬浊液。将悬浊液置于普通日光下照射,并不停进行搅拌,每7分钟取1次样品,测试其吸收曲线。如图2所示,42分钟后配合物对亚甲基蓝的催化降解达到77%。相比之下,在同样的条件下,如果体系中不使用配合物,则42分钟后,亚甲基蓝基本不降解,如图3所示。结果表明,本发明配合物对亚甲基蓝染料的降解具有很好的催化效果。
Claims (4)
1.一种铜配合物,其特征在于,结构式为:
2.如权利要求1所述的一种铜配合物的制备方法,其特征在于,包括如下步骤:
(1)按摩尔比1:1~2:1~2取CuCl2·2H2O、2,3-二(4-甲基-苯甲酸基)丁二酸和KOH,分别溶于甲醇、DMF和水中,再将它们混合;
(2)室温搅拌至少12h,得到蓝色透明溶液,过滤收集滤液,将滤液静置于4℃的冰箱中,15天后有蓝色块状晶体析出,过滤收集,蒸馏水洗涤,干燥即可。
3.如权利要求2所述的一种铜配合物的制备方法,其特征在于CuCl2·2H2O、2,3-二(4-甲基-苯甲酸基)丁二酸和KOH的摩尔比为1:2:2。
4.如权利要求1所述的一种铜配合物在催化降解亚甲基蓝染料中的应用。
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CN102909073A (zh) * | 2012-10-12 | 2013-02-06 | 浙江理工大学 | 一种非均相类芬顿催化剂的制备方法及其应用 |
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