CN107497456B - 层状氯氧化铋可见光催化剂的制备方法及其应用 - Google Patents
层状氯氧化铋可见光催化剂的制备方法及其应用 Download PDFInfo
- Publication number
- CN107497456B CN107497456B CN201710617979.0A CN201710617979A CN107497456B CN 107497456 B CN107497456 B CN 107497456B CN 201710617979 A CN201710617979 A CN 201710617979A CN 107497456 B CN107497456 B CN 107497456B
- Authority
- CN
- China
- Prior art keywords
- bismuth oxychloride
- preparation
- visible
- phase
- layered
- 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.)
- Active
Links
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229940073609 bismuth oxychloride Drugs 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 20
- 239000003054 catalyst Substances 0.000 claims abstract description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 20
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 9
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 8
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 8
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 8
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000002351 wastewater Substances 0.000 claims abstract description 6
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000011259 mixed solution Substances 0.000 claims abstract description 3
- 230000015556 catabolic process Effects 0.000 claims description 12
- 238000006731 degradation reaction Methods 0.000 claims description 12
- 239000004098 Tetracycline Substances 0.000 claims description 11
- 229960002180 tetracycline Drugs 0.000 claims description 11
- 229930101283 tetracycline Natural products 0.000 claims description 11
- 235000019364 tetracycline Nutrition 0.000 claims description 11
- 150000003522 tetracyclines Chemical class 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims description 2
- 229940043267 rhodamine b Drugs 0.000 claims description 2
- 229960002135 sulfadimidine Drugs 0.000 claims description 2
- ASWVTGNCAZCNNR-UHFFFAOYSA-N sulfamethazine Chemical compound CC1=CC(C)=NC(NS(=O)(=O)C=2C=CC(N)=CC=2)=N1 ASWVTGNCAZCNNR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 claims 3
- 230000000593 degrading effect Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 230000001699 photocatalysis Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000002052 molecular layer Substances 0.000 description 2
- 239000002135 nanosheet Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000000634 powder X-ray diffraction Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009210 therapy by ultrasound Methods 0.000 description 2
- 238000003775 Density Functional Theory Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
Abstract
本发明公开了一种层状氯氧化铋可见光催化剂的制备方法及其应用。制备方法包括将硝酸铋与聚乙烯吡咯烷酮溶于乙二醇中,得到A相;将氯化铵和氢氧化钠溶于水中,得到B相;再将A相和B相混合,所得混合液进行水热反应,反应后,经过滤、洗涤和烘干,得到层状氯氧化铋可见光催化剂,氯氧化铋的分子式为Bi12O17Cl2。本发明方法制备的催化剂具有可控性好、容易大规模合成等优势,可用于高效降解有机污染物废水。
Description
技术领域
本发明属于可见光催化领域,涉及一种层状氯氧化铋可见光催化剂的制备方法及其应用,具体涉及一种层状氯氧化铋可见光催化剂的制备方法及其在可见光下催化降解废水中的有机污染物的应用。
背景技术
目前,随着化石能源短缺,太阳能转化成化学能逐渐引起了研究者的兴趣。半导体光催化技术是通过光催化剂在光照射下产生的催化反应,是可以模拟大自然中的光合作用的一种技术。光通过在光催化剂的表面进行激发可以产生空穴和电子,空穴与电子可以与水进行自由基传递,产生氧气、氢气,同时也会产生羟基自由基或者超氧自由基使有机污染物进行降解,从而实现光能的转化。光催化氧化作为一种高级氧化技术,具有氧化能力强、无二次污染等优点,从而成为处理废水的新途径。
然而,目前的半导体光催化剂由于带隙较宽,如TiO2、ZnO、BiOCl和SnO2只能吸收紫外光进行反应。由于紫外光在太阳光中的比例较小,使得光催化剂不能很好的利用太阳光,所以开发可见光响应的光催化剂显得十分有必要。作为一类重要的光催化剂,BiOCl的带隙较宽,一直得不到很好的重视。虽然DFT计算揭示了调整Bi、O、Cl的原子数目可以得到新型的可见光光催化材料,但制备均匀的Bi12O17Cl2仍然存在较大难度,且在应用上一直十分受限。
发明内容
本发明要解决的技术问题是克服现有技术的不足,提供一种具有独特的纳米层层结构、窄的带隙宽度、快速的光生载流子分离、迁移能力、且能够实现高效地可见光光降解有机污染物的层状氯氧化铋可见光催化剂的制备方法及其应用。本发明的制备方法工艺简单,成本低廉,催化效率高,符合实际生产需求,在光催化领域具有广阔的应用前景。
为解决上述技术问题,本发明采用以下技术方案:
一种层状氯氧化铋可见光催化剂的制备方法,包括以下步骤:包括以下步骤:将硝酸铋与聚乙烯吡咯烷酮溶于乙二醇中,得到A相;将氯化铵和氢氧化钠溶于水中,得到B相;再将A相和B相混合,所得混合液进行水热反应,反应后,经过滤、洗涤和烘干,得到层状氯氧化铋可见光催化剂,氯氧化铋的分子式为Bi12O17Cl2。
上述的层状氯氧化铋可见光催化剂的制备方法中,优选的,所述硝酸铋与聚乙烯吡咯烷酮的质量比为100∶1~2,所述硝酸铋与乙二醇的质量体积比为2g∶20mL~30mL。
上述的层状氯氧化铋可见光催化剂的制备方法中,优选的,所述氯化铵与氢氧化钠的质量比为1∶3~4,所述氢氧化钠在水中的浓度为0.2mol/L~0.6mol/L。
上述的层状氯氧化铋可见光催化剂的制备方法中,优选的,所述水热反应的温度为140℃~180℃,所述水热反应的时间为12h~24h。
上述的层状氯氧化铋可见光催化剂的制备方法中,优选的,所述洗涤为采用水和乙醇各洗3~5次。
作为一个总的技术构思,本发明还提供一种上述的层状氯氧化铋可见光催化剂的制备方法制得的层状氯氧化铋可见光催化剂在降解有机污染物废水中的应用。
上述的应用中,优选的,所述有机污染物为难降解有机污染物,难降解有机污染物为罗丹明B、磺胺二甲基嘧啶和四环素中的一种或几种。
本发明的主要创新点在于制备方法中的配方,而且生成的Bi12O17Cl2具有可见光光催化性能。
与现有技术相比,本发明的优点在于:
本发明的制备方法操作简单,原材料易得,可见光催化效率高,在光催化领域具有广阔的应用前景,制得的催化剂具有可控性好、容易大规模合成等优势。本发明的制备方法中采用聚乙烯吡咯烷酮作为分散剂,可以更好的分散形成的层状纳米层,减少团聚。本发明的方法制备的催化剂在可见光照射下,能够快速降解有机污染物,特别是常规方法难降解的有机污染物,将该制备方法制得的催化材料用于降解20mg/L的四环素时,在1h内可以实现降解。
附图说明
图1为本发明实施例1制备的层状氯氧化铋Bi12O17Cl2可见光催化剂的SEM图。
图2为本发明实施例1和实施例2的制备方法制得的层状氯氧化铋可见光催化剂的X射线粉末衍射(XRD)对比图。
图3为本发明实施例1和实施例2的制备方法制得的层状氯氧化铋可见光催化剂的紫外漫反射光谱(DRS)图谱。
图4为本发明实施例3的应用中所得到的实施例1(a)和实施例2(b)制得的层状氯氧化铋可见光催化剂对四环素的催化降解曲线图。
具体实施方式
以下结合说明书附图和具体优选的实施例对本发明作进一步描述,但并不因此而限制本发明的保护范围。
以下实施例中所采用的材料和仪器均为市售。
实施例1:
一种本发明的层状氯氧化铋可见光催化剂的制备方法,包括以下步骤:将2g Bi(NO3)3·5H2O和0.02g的聚乙烯吡咯烷酮加入20mL乙二醇中,使用磁力搅拌器搅拌10min,同时辅以超声处理,得到A相;将0.65g NH4Cl和1.95g NaOH加入120mL水中并搅拌3min,得到B相。A相与B相混合后转移到带有聚四氟乙烯的水热反应釜中以140℃加热12h。自然冷却至室温后,通过过滤收集所得黄色粉末并用蒸馏水和无水乙醇各洗涤3次,以除去残留的离子和有机物,然后将产物在80℃下干燥6h,即得到层状氯氧化铋Bi12O17Cl2可见光催化剂,氯氧化铋也可称为氯氧铋,产物为黄色片状固体,研磨后为暗黄色粉末。如图1所示,为本实施例制备的光催化剂的SEM图,由图可知,催化剂整体结构为不规则片层状,纳米层厚度为10-20nm。
实施例2:
一种本发明的层状氯氧化铋可见光催化剂的制备方法,包括以下步骤:将2g Bi(NO3)3·5H2O和0.02g的聚乙烯吡咯烷酮加入20mL乙二醇中,使用磁力搅拌器搅拌10min,同时辅以超声处理,得到A相;将0.65g NH4Cl和1.95g NaOH加入120mL水中并搅拌3min,得到B相。A相与B相混合后转移到带有聚四氟乙烯的水热反应釜中以160℃加热12h。自然冷却至室温后,通过过滤收集所得黄色粉末并用蒸馏水和无水乙醇各洗涤3次,以除去残留的离子和有机物,然后将产物在80℃下干燥6h。即得到层状氯氧化铋Bi12O17Cl2可见光催化剂,制得的产物为黄色片状固体,研磨后为暗黄色粉末。
性能测试:
图2为实施例1和实施例2制得的催化剂的纳米片的XRD图,分别对应图中的a与b,两种催化剂的峰均与Bi12O17Cl2的主要峰一致(JCPDS card No. 37-0702),证明确实得到了氯氧化铋Bi12O17Cl2。
图3为实施例1和实施例2制得的催化剂纳米片层的DRS图,分别对应图中的a与b,从图中可以看出,实施例1与实施例2制备的层状氯氧化铋催化剂将波长拓宽至520nm以上,显著增加了光的吸收范围,提高了光的利用率。
实施例3:催化剂在可见光下降解四环素
一种本发明的层状氯氧化铋可见光催化剂的制备方法制得的层状氯氧化铋可见光催化剂在降解有机污染物废水中的应用。以四环素作为特征污染物,分别按实施例1和实施例2的制备方法制得的催化剂进行降解实验,其中四环素溶液的浓度为20mg/L;取催化剂100mg,置于100ml上述含四环素的水溶液中。
溶液中,在暗室中搅拌60min,然后将溶液置于300W(大于420nm)的可见光源中,照射1h,每10min取3ml四环素溶液,用UV-vis测出溶液中四环素的浓度,计算降解率。从图4a可见,按照实施例1制备的催化剂在可见光下降解四环素的降解率为83%左右。图4b可见,实施例2制备的催化剂在光照1h后的降解率为90%以上。
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制。虽然本发明已以较佳实施例揭示如上,然而并非用以限定本发明。任何熟悉本领域的技术人员,在不脱离本发明的精神实质和技术方案的情况下,都可利用上述揭示的方法和技术内容对本发明技术方案做出许多可能的变动和修饰,或修改为等同变化的等效实施例。因此,凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所做的任何简单修改、等同替换、等效变化及修饰,均仍属于本发明技术方案保护的范围内。
Claims (5)
1.一种层状氯氧化铋可见光催化剂的制备方法,其特征在于,包括以下步骤:将硝酸铋与聚乙烯吡咯烷酮溶于乙二醇中,得到A相;将氯化铵和氢氧化钠溶于水中,得到B相;再将A相和B相混合,所得混合液进行水热反应,反应后,经过滤、洗涤和烘干,得到层状氯氧化铋可见光催化剂,氯氧化铋的分子式为Bi12O17Cl2;
所述硝酸铋与聚乙烯吡咯烷酮的质量比为100∶1~2,所述硝酸铋与乙二醇的质量体积比为2g∶20mL~30mL;
所述氯化铵与氢氧化钠的质量比为1∶3~4,所述氢氧化钠在水中的浓度为0.2mol/L~0.6mol/L。
2.根据权利要求1所述的层状氯氧化铋可见光催化剂的制备方法,其特征在于,所述水热反应的温度为140℃~180℃,所述水热反应的时间为12h~24h。
3.根据权利要求1所述的层状氯氧化铋可见光催化剂的制备方法,其特征在于,所述洗涤为采用水和乙醇各洗3~5次。
4.一种如权利要求1~3中任一项所述的层状氯氧化铋可见光催化剂的制备方法制得的层状氯氧化铋可见光催化剂在降解有机污染物废水中的应用。
5.根据权利要求4所述的应用,其特征在于,所述有机污染物为难降解有机污染物,难降解有机污染物为罗丹明B、磺胺二甲基嘧啶和四环素中的一种或几种。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710617979.0A CN107497456B (zh) | 2017-07-26 | 2017-07-26 | 层状氯氧化铋可见光催化剂的制备方法及其应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710617979.0A CN107497456B (zh) | 2017-07-26 | 2017-07-26 | 层状氯氧化铋可见光催化剂的制备方法及其应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107497456A CN107497456A (zh) | 2017-12-22 |
CN107497456B true CN107497456B (zh) | 2020-04-10 |
Family
ID=60689924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710617979.0A Active CN107497456B (zh) | 2017-07-26 | 2017-07-26 | 层状氯氧化铋可见光催化剂的制备方法及其应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107497456B (zh) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108178192A (zh) * | 2018-01-17 | 2018-06-19 | 南京信息工程大学 | 一种纳米片结构的BiOF电极材料及其制备方法与电化学储能应用 |
CN108380226A (zh) * | 2018-02-05 | 2018-08-10 | 南阳师范学院 | 一种超薄卤氧化铋纳米片及其制备和应用 |
CN108906110B (zh) * | 2018-07-26 | 2021-02-26 | 滨州学院 | 一种光催化剂的制备方法及其应用 |
CN109772375B (zh) * | 2019-02-15 | 2021-10-08 | 江苏大学 | 一种可见光响应的异质结复合材料及其制备方法与用途 |
CN110104684A (zh) * | 2019-05-24 | 2019-08-09 | 陕西科技大学 | 一种有分级结构的卤氧化铋光催化剂及其制备方法 |
CN110833836A (zh) * | 2019-10-31 | 2020-02-25 | 江苏大学 | 水热法制备二维超薄富铋氯氧铋纳米片及其应用 |
CN113683056A (zh) * | 2020-05-19 | 2021-11-23 | 中国科学院上海硅酸盐研究所 | 一种光催化制备氯气的方法 |
CN111744508B (zh) * | 2020-07-20 | 2023-04-25 | 铜仁学院 | 一种光催化剂及其制备方法和应用 |
CN112551575B (zh) * | 2020-12-29 | 2022-05-27 | 杭州电子科技大学 | 一种Bi12O17Cl2纳米粉体的制备方法 |
CN114853110B (zh) * | 2021-02-04 | 2023-05-09 | 中国科学院上海硅酸盐研究所 | 一种利用氯氧化铋光催化剂处理含盐氨氮废水的方法 |
CN115974150A (zh) * | 2023-02-02 | 2023-04-18 | 太原理工大学 | 一种氯氧铋纳米片的制备方法及由其制得的氯氧铋纳米片 |
CN116371431A (zh) * | 2023-04-07 | 2023-07-04 | 广西民族大学 | 一种Bi12O17Cl2超薄纳米带的制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104383944A (zh) * | 2014-11-27 | 2015-03-04 | 青岛科技大学 | 一种具有叠层片微结构的可见光光催化剂Bi12O17Cl2及其制备方法 |
-
2017
- 2017-07-26 CN CN201710617979.0A patent/CN107497456B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104383944A (zh) * | 2014-11-27 | 2015-03-04 | 青岛科技大学 | 一种具有叠层片微结构的可见光光催化剂Bi12O17Cl2及其制备方法 |
Non-Patent Citations (5)
Title |
---|
Bi12O17Cl2光催化降解RhB-响应曲面法优化反应条件;穆晓斐等;《广州化工》;20161231;第44卷(第24期);第74-77页 * |
BiOBr/Bi0I-FACs光催化降解四环素的动力学研究;林立等;《硅酸盐通报》;20160531;第33卷(第5期);第1547-1551页 * |
Chu-Ya Wang等.Photocatalytic degradation of bisphenol A by oxygen-rich and highlyvisible-light responsive Bi12O17Cl2 nanobelts.《Applied Catalysis B: Environmental》.2016,第200卷第659-665页. * |
Photocatalytic degradation of bisphenol A by oxygen-rich and highlyvisible-light responsive Bi12O17Cl2 nanobelts;Chu-Ya Wang等;《Applied Catalysis B: Environmental》;20160801;第200卷;第659-665页 * |
Photodegradation of sulfamethazine in an aqueous;Changsheng Guo等;《Catal. Sci. Technol》;20130318;第3卷;第1603-1611页 * |
Also Published As
Publication number | Publication date |
---|---|
CN107497456A (zh) | 2017-12-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107497456B (zh) | 层状氯氧化铋可见光催化剂的制备方法及其应用 | |
Lam et al. | A review on photocatalytic application of g-C3N4/semiconductor (CNS) nanocomposites towards the erasure of dyeing wastewater | |
Aghdam et al. | Precipitation dispersion of various ratios of BiOI/BiOCl nanocomposite over g-C3N4 for promoted visible light nanophotocatalyst used in removal of acid orange 7 from water | |
CN106732524B (zh) | 一种α/β-氧化铋相异质结光催化剂及其制法和用途 | |
Khatri et al. | Visible light assisted photocatalysis of Methylene Blue and Rose Bengal dyes by iron doped NiO nanoparticles prepared via chemical co-precipitation | |
CN106824213B (zh) | 一种钴氧化物掺杂的碱式碳酸铋/氯氧化铋光催化剂及其制备方法 | |
Xu et al. | Constructing Z-scheme β-Bi2O3/ZrO2 heterojunctions with 3D mesoporous SiO2 nanospheres for efficient antibiotic remediation via synergistic adsorption and photocatalysis | |
CN110918126A (zh) | 一种花状二硫化钼结合UiO-66光催化剂的制备方法 | |
WO2021212923A1 (zh) | 负载于泡沫镍表面的 p-n 异质结复合材料及其制备方法与应用 | |
WO2017219382A1 (zh) | 一种双层ZnO空心球光催化材料及其制备方法 | |
Sun et al. | Designing double Z-scheme heterojunction of g-C3N4/Bi2MoO6/Bi2WO6 for efficient visible-light photocatalysis of organic pollutants | |
Mao et al. | High performance hydrogen production of MoS 2-modified perovskite LaNiO 3 under visible light | |
CN107790157A (zh) | 一种三元铋基复合光催化剂Bi/Bi4O5Br2/BiOI及其制备方法和应用 | |
CN113019409B (zh) | 一种Bi2O2CO3/BiOCl催化剂的制备方法及其应用 | |
CN111250094B (zh) | 双Z型Co3O4/NiCo2O4/NiO光催化剂及其制备方法和应用 | |
CN104511293A (zh) | 一种氯氧化铋-钛酸铁铋复合光催化剂及其制备方法 | |
CN105688957A (zh) | 具有可见光催化活性的CNTs-Ag3PO4催化剂及其制备方法 | |
Wu et al. | Z-scheme heterojunction of flower microsphere Bi7O9I3 surface loaded with gray TiO2 particles for photocatalytic oxidation of gas-phase Hg0 | |
CN106693996B (zh) | 硫化铋-铁酸铋复合可见光催化剂的制备方法及其应用 | |
CN111686770B (zh) | 一种金属离子共掺杂BiOBr微球、制备方法及其应用 | |
Dou et al. | Ag nanoparticle-decorated 2D/2D S-scheme gC 3 N 4/Bi 2 WO 6 heterostructures for an efficient photocatalytic degradation of tetracycline | |
CN105536843A (zh) | 高可见光电子转移g-C3N4/Au/TiO2类Z型光催化剂的制备方法 | |
CN114950522A (zh) | 氮化硼/硫化铟锌复合光催化剂及其制备方法和应用 | |
Malik et al. | Investigation on synthesis of ternary g-C3N4/ZnO–W/M nanocomposites integrated heterojunction II as efficient photocatalyst for environmental applications | |
CN107899594B (zh) | 一种碳点修饰羟基磷酸铜光催化材料及其制备方法 |
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 |