CN110605127A - 一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法 - Google Patents
一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法 Download PDFInfo
- Publication number
- CN110605127A CN110605127A CN201910727835.XA CN201910727835A CN110605127A CN 110605127 A CN110605127 A CN 110605127A CN 201910727835 A CN201910727835 A CN 201910727835A CN 110605127 A CN110605127 A CN 110605127A
- Authority
- CN
- China
- Prior art keywords
- nbo
- nitio
- preparation
- composite
- composite photocatalyst
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 24
- 238000001354 calcination Methods 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 229910052573 porcelain Inorganic materials 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims description 3
- 229940073609 bismuth oxychloride Drugs 0.000 claims description 3
- FBXVOTBTGXARNA-UHFFFAOYSA-N bismuth;trinitrate;pentahydrate Chemical compound O.O.O.O.O.[Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FBXVOTBTGXARNA-UHFFFAOYSA-N 0.000 claims description 3
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 229940078494 nickel acetate Drugs 0.000 claims description 3
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 claims description 3
- YHBDIEWMOMLKOO-UHFFFAOYSA-I pentachloroniobium Chemical compound Cl[Nb](Cl)(Cl)(Cl)Cl YHBDIEWMOMLKOO-UHFFFAOYSA-I 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 239000002243 precursor Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 229910002898 Bi4NbO8Cl Inorganic materials 0.000 abstract description 13
- 230000001699 photocatalysis Effects 0.000 abstract description 12
- 239000000969 carrier Substances 0.000 abstract description 5
- 230000006798 recombination Effects 0.000 abstract description 3
- 238000005215 recombination Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000009841 combustion method Methods 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 abstract 1
- 239000002957 persistent organic pollutant Substances 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000001308 synthesis method Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- 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 description 6
- 229940043267 rhodamine b Drugs 0.000 description 6
- 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 description 4
- 229960000907 methylthioninium chloride Drugs 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229910000161 silver phosphate Inorganic materials 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- ZXJXZNDDNMQXFV-UHFFFAOYSA-M crystal violet Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1[C+](C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 ZXJXZNDDNMQXFV-UHFFFAOYSA-M 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 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
- 238000002835 absorbance Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- JLYXXMFPNIAWKQ-UHFFFAOYSA-N γ Benzene hexachloride Chemical compound ClC1C(Cl)C(Cl)C(Cl)C(Cl)C1Cl JLYXXMFPNIAWKQ-UHFFFAOYSA-N 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
- B01J27/06—Halogens; Compounds thereof
- B01J27/135—Halogens; Compounds thereof with titanium, zirconium, hafnium, germanium, tin or lead
-
- 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
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0027—Powdering
- B01J37/0036—Grinding
-
- 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
- B01J37/082—Decomposition and pyrolysis
-
- 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
- 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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- 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
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
本发明公开了一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,该复合材料是NiTiO3掺杂于Bi4NbO8Cl形成异质结,构成NiTiO3/Bi4NbO8Cl复合材料。制备方法包括以下步骤:通过溶液燃烧法制得Bi4NbO8Cl;通过沉淀、煅烧法制得NiTiO3;将反应得到的NiTiO3和Bi4NbO8Cl经过研磨、超声、煅烧制备得NiTiO3/Bi4NbO8Cl复合纳米光催化材料。由于NiTiO3(‑0.21eV~2.15eV)与Bi4NbO8Cl(‑0.28eV~2.11eV)的带隙位置及宽度较为合适,所以该复合光催化剂结构不仅能拓宽光谱吸收范围,同时可以促进光生电荷和空穴的转移,降低光生载流子的复合机率,从而提高其光催化降解水中有机污染物的效率。该合成方法简单可行,制备的复合材料形貌较好,结晶度高,具有优越的光催化性能,在光催化处理染料废水领域具有潜在的应用前景。
Description
技术领域:
本发明属于环境化学中光催化治理污染物技术领域,具体涉及半导体掺杂改性的复合催化剂的一种简单制备方法。
背景技术:
由于全球工业化进程的发展,环境污染问题越来越严重,因此环境保护和可持续发展成为人们必须考虑的首要问题。气相和水中的污染物更是具有组成结构复杂,生物降解难等特点,加大了环境治理的难度。近年来,对半导体光催化领域的研究已经变得非常普遍,并且已经开发了各种新型半导体。Bi4NbO8Cl的带隙约为2.39eV,与其它铋化物相比较小;其为无机成分的半导体材料、对紫外光有较强的响应效率;此外,该类光催化剂有效作用时间长,对环境无污染等特点使其成为理想的光催化材料。尽管如此,Bi4NbO8Cl的光生载流子复合效率仍然较高,需要对其进行修饰来进一步提高性能。NiTiO3也具有较好的光催化性能且目前已被很多学者研究:赵高宇[1]采用简单的离子交换沉积法制备NiTiO3/Ag3PO4复合材料,以甲基紫(MV)为降解剂,发现该催化剂可以诱导电子-空穴对的有效分离和增强电荷流动。证实了NiTiO3/Ag3PO4复合材料的光催化活性远高于纯Ag3PO4。Yi-JingLin[2]以亚甲基蓝(MB)为目标降解物制备了在NiTiO3粉末中掺杂Ag的复合物,结果是随着银浓度的增加,Ag-NiTiO3具有对MB更好的降解性能。但是目前还没有将Bi4NbO8Cl和NiTiO3复合在一起的报道。 NiTiO3的导带和价带位置较低,与Bi4NbO8Cl呈现交叉带隙的特点,两者进行复合可以形成异质结,同时促进光生载流子的分离,提高光催化活性。
发明内容:
本发明目的在于克服Bi4NbO8Cl催化剂载流子复合效率高的缺点,提供一种安全可靠、简单操作的改进方法。经多次探索实验,得出一种NiTiO3/Bi4NbO8Cl 复合光催化剂材料的制备方法,包含以下步骤:
1、一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于,按以下步骤进行:
(1)Bi4NbO8Cl的制备:将378.3mg尿素溶于5mL去离子水中,充分搅拌后,依次加入135mg氯化铌、727.6mg五水硝酸铋和130mg氯氧化铋,各自超声搅拌30min,随后将混合液转移到瓷舟中,放入预先加热至600℃的马弗炉中煅烧 6h,制备得到Bi4NbO8Cl粉末。
(2)NiTiO3的制备:将2.48g乙酸镍溶解在3.4ml钛酸四丁酯和60ml乙二醇中,搅拌2h形成均匀悬浊液,离心后得到前驱体,在60℃下干燥6h,最后在马弗炉中煅烧2h,温度为600℃,升温速率为5℃/min,得到NiTiO3粉末。
(3)NiTiO3/Bi4NbO8Cl复合材料的制备:按一定质量比称取NiTiO3和Bi4NbO8Cl 粉末放于研钵中,研磨一段时间后,将混合样品倒入烧杯,加入一定量无水乙醇,超声一段时间,混合液干燥后,在一定温度下煅烧一定时间,获得不同比例的 NiTiO3/Bi4NbO8Cl复合催化剂。
2、如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中NiTiO3的质量分数是Bi4NbO8Cl的5%-30%。
3、如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中制备复合材料时研磨时间为5-60min。
4、如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中制备复合材料时加入酒精的量为5-30mL。
5、如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中制备复合材料时超声时间为10-60min。
6、如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中将干燥后的粉末在马弗炉中的热处理温度为200-550℃,时间为0.5-3h,升温速率为2-8℃/min。
由于NiTiO3与Bi4NbO8Cl呈现交叉带隙的特点,将两者复合后NiTiO3可以作为能量的浅势捕获阱。使光生电子更容易从Bi4NbO8Cl的导带迁移到NiTiO3的导带,光生空穴则更容易从NiTiO3的价带迁移到Bi4NbO8Cl的价带,从而促进光生载流子的分离,减少光电流的产生,进而提高复合催化剂的性能。而且 Bi4NbO8Cl可以与NiTiO3复合形成异质结构,这种结构不仅可以增加催化剂对太阳光的吸收,还使催化剂的活性和稳定性显著提高。
本发明的优点:
(1)本发明所采用的制备方法设备简单,成本较低,安全性高。
(2)NiTiO3与Bi4NbO8Cl呈现交叉带隙的特点,将两者复合后NiTiO3可以作为能量的浅势捕获阱。促进光生载流子的分离,减少光电流的产生,进而提高复合催化剂的性能。
附图说明:
图1,Bi4NbO8Cl、NiTiO3和NiTiO3/Bi4NbO8Cl的XRD谱图
图2,10%NiTiO3/Bi4NbO8Cl复合光催化剂的高分辨透射电镜图
图3,Bi4NbO8Cl、NiTiO3和10%NiTiO3/Bi4NbO8Cl(10%BNT)光催化剂的催化降解图
具体实施方式:
(1)Bi4NbO8Cl的制备:将378.3mg尿素溶于5mL去离子水中,充分搅拌后,依次加入135mg氯化铌、727.6mg五水硝酸铋和130mg氯氧化铋,各自超声搅拌30min,随后将混合液转移到瓷舟中,放入预先加热至600℃的马弗炉中煅烧6h,制备得到Bi4NbO8Cl粉末。
(2)NiTiO3的制备:将2.48g乙酸镍溶解在3.4ml钛酸四丁酯和60ml乙二醇中,搅拌溶解形成均匀悬浊液,离心后得到深绿色沉淀物。醇洗后在烘箱中干燥,接着在600℃的马弗炉中煅烧2小时,加热速率为5℃/min,得到深黄色NiTiO3粉末。
(3)NiTiO3/Bi4NbO8Cl复合材料的制备:称取0.3g Bi4NbO8Cl粉末和0.03g NiTiO3粉末放于研钵中,研磨10min后,将混合样品倒入烧杯,加入10mL无水乙醇,超声30min,混合液在60℃下干燥6h后,转移到马弗炉中,300℃煅烧2h,升温速率为5℃/min,获得10%NiTiO3/Bi4NbO8Cl复合催化剂,简化为10%BNT。其它比例制备方法与上述类似,分别简化为5%BNT和15%BNT。
光催化性能测试是在室温条件下使用氙灯作为光源,并且将罗丹明B(RHB) 的降解速率作为评价指标。实验操作如下:在洁净的石英试管中加入0.05g的光催化剂和50ml、5mg/l的RHB溶液,使各个试管与光源的距离保持相等。黑暗中静置30min,以保证RHB在样品的表面吸附和解吸附达到平衡;然后打开循环冷却水、氙灯光源、搅拌器和公转旋钮,待光稳定后开始计时,进行300min 的光照。光照过程中,每30min取样一次,取样体积约为3ml。将所取样品注入离心管中进行离心取出上层清液,随后检测液体在200-800nm范围内的吸光度。发现当掺杂量为10%时,复合非均相催化剂具有最佳性能。
从图1中可以看出NiTiO3的衍射图谱与标准卡No.33-0960匹配良好,Bi4NbO8Cl与标准卡No.84-0843匹配良好。除了Bi4NbO8Cl的衍射峰外,在 2θ=35.8°处的衍射峰,来自于NiTiO3,这说明NiTiO3/Bi4NbO8Cl被成功制备。由图2可知,颜色较暗的区域是Bi4NbO8Cl,较浅的是NiTiO3。从图中可以看到 NiTiO3附着在Bi4NbO8Cl的表面上,这也在一定程度上说明两者进行了较好地复合。图3是催化剂降解RHB的效率图,与纯NiTiO3和Bi4NbO8Cl相比,10%NiTiO3/Bi4NbO8Cl具有最好的光催化性能,降解率达到90%。所以说,将 Bi4NbO8Cl与NiTiO3复合后可以较大幅度地提高Bi4NbO8Cl在可见光下对RHB 的降解能力。
参考文献
[1]赵高宇,张宇,林江,张红梅.NiTiO3/Ag3PO4复合材料在可见光照射下具有改善的光催化活性[J].陶瓷国际.2017,43(3):3314-3318。
[2]林永杰,张永华,陈庚等.Ag掺杂NiTiO3对紫外和可见光照射下亚甲基蓝光还原的影响[J].合金与化合物杂志.2009,479(1-2):0-790。
Claims (6)
1.一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于,按以下步骤进行:
(1)Bi4NbO8Cl的制备:将378.3mg尿素溶于5mL去离子水中,充分搅拌后,依次加入135mg氯化铌、727.6mg五水硝酸铋和130mg氯氧化铋,各自超声搅拌30min,随后将混合液转移到瓷舟中,放入预先加热至600℃的马弗炉中煅烧6h,制备得到Bi4NbO8Cl粉末。
(2)NiTiO3的制备:将2.48g乙酸镍溶解在3.4ml钛酸四丁酯和60ml乙二醇中,搅拌2h形成均匀悬浊液,离心后得到前驱体,在60℃下干燥6h,最后在马弗炉中煅烧2h,温度为600℃,升温速率为5℃/min,得到NiTiO3粉末。
(3)NiTiO3/Bi4NbO8Cl复合材料的制备:按一定质量比称取NiTiO3和Bi4NbO8Cl粉末放于研钵中,研磨一段时间后,将混合样品倒入烧杯,加入一定量无水乙醇,超声一段时间,混合液干燥后,在一定温度下煅烧一定时间,获得不同比例的NiTiO3/Bi4NbO8Cl复合催化剂。
2.如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中NiTiO3的质量分数是Bi4NbO8Cl的5%-30%。
3.如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中制备复合材料时研磨时间为5-60min。
4.如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中制备复合材料时加入无水乙醇的量为5-30mL。
5.如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中制备复合材料时超声时间为10-60min。
6.如权利要求1所述的一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法,其特征在于步骤(3)中将干燥后的粉末在马弗炉中的热处理温度为200-550℃,时间为0.5-3h,升温速率为2-8℃/min。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910727835.XA CN110605127A (zh) | 2019-08-08 | 2019-08-08 | 一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910727835.XA CN110605127A (zh) | 2019-08-08 | 2019-08-08 | 一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110605127A true CN110605127A (zh) | 2019-12-24 |
Family
ID=68890363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910727835.XA Pending CN110605127A (zh) | 2019-08-08 | 2019-08-08 | 一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110605127A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112657516A (zh) * | 2021-01-06 | 2021-04-16 | 福州大学 | 一种直接z型光催化剂及其制备方法和应用 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102974373A (zh) * | 2012-12-24 | 2013-03-20 | 山东大学 | 一种可见光光催化材料及其制备方法 |
CN107262131A (zh) * | 2017-07-17 | 2017-10-20 | 河海大学 | 一种可见光响应Bi3O4Cl/g‑C3N4异质结材料的制备方法和应用 |
-
2019
- 2019-08-08 CN CN201910727835.XA patent/CN110605127A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102974373A (zh) * | 2012-12-24 | 2013-03-20 | 山东大学 | 一种可见光光催化材料及其制备方法 |
CN107262131A (zh) * | 2017-07-17 | 2017-10-20 | 河海大学 | 一种可见光响应Bi3O4Cl/g‑C3N4异质结材料的制备方法和应用 |
Non-Patent Citations (2)
Title |
---|
SWETHA S. M. BHAT ETAL.: "Photocatalysis of Bi4NbO8Cl hierarchical nanostructure for degradation of dye under solar/UV irradiation", 《NEWJ.CHEM.》 * |
WUTAO MAO ET AL.: "Synthesis of a CoTiO3/BiOBr heterojunction composite with enhanced photocatalytic performance", 《CERAMICS INTERNATIONAL》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112657516A (zh) * | 2021-01-06 | 2021-04-16 | 福州大学 | 一种直接z型光催化剂及其制备方法和应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104549406B (zh) | 一种g‑C3N4/铋系氧化物复合可见光催化剂及其制备方法与应用 | |
CN104128184B (zh) | 一种漂浮型CoFe2O4/TiO2/漂珠复合光催化剂及其制备方法 | |
CN108067281B (zh) | 多孔g-C3N4光催化剂及其制备方法和应用 | |
CN107670696A (zh) | 一种金属有机骨架材料uio‑66(nh2)/棒状硫化镉复合光催化剂的制备方法 | |
CN105148949A (zh) | 一种碘氧化铋-钒酸铋异质结光催化剂及其制备方法 | |
WO2017219382A1 (zh) | 一种双层ZnO空心球光催化材料及其制备方法 | |
CN110075905B (zh) | 一种异质结光催化剂CaSb2O6/g-C3N4的制备方法及其应用 | |
CN110124723A (zh) | ZnO/g-C3N4复合光催化剂及其制备方法和应用 | |
CN110605128A (zh) | 一种CoTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法 | |
CN107098429B (zh) | 一种BiVO4/BiPO4复合材料及其制备方法和应用 | |
CN112007679B (zh) | 一种Co/V双金属掺杂g-C3N4光催化剂及其制备方法和应用 | |
CN107670683B (zh) | 一种FeVO4@g-C3N4核壳结构异质结光催化剂及其制备方法 | |
CN110152701B (zh) | 一种Bi2O2CO3/Bi2WO6:Yb3+、Er3+光催化剂及其制备方法和应用 | |
CN114904574A (zh) | 一种铂单原子/簇修饰的光敏化体系及制备方法和用途 | |
CN111604084A (zh) | 一种Cu掺杂的氮缺陷性g-C3N4/ZnCo2O4异质结的光催化降解材料 | |
CN111822029A (zh) | Bi4V2O11/g-C3N4异质结光催化剂及其制备方法与应用 | |
CN110237855A (zh) | 一种可见光响应氧化铁掺杂氮缺陷氮化碳复合材料的制备方法及应用 | |
CN109847783B (zh) | 一种Fe3+/CdIn2S4/g-C3N4三元光芬顿催化剂的制备方法及其应用 | |
CN107899594B (zh) | 一种碳点修饰羟基磷酸铜光催化材料及其制备方法 | |
CN109437292A (zh) | 一种高效合成的超薄二维二氧化钛纳米片及制备方法 | |
CN110605127A (zh) | 一种NiTiO3/Bi4NbO8Cl复合光催化剂材料的制备方法 | |
CN106000370A (zh) | 一种光致Ti3+自掺杂TiO2光催化剂的制备方法 | |
CN113134378A (zh) | 一种W18O49/g-C3N4/RGO半导体光催化剂制备方法 | |
CN117680168A (zh) | 一种具有规整花状形貌的木质素碳基卤氧铋z型异质结复合材料及其制备方法和应用 | |
CN112495402A (zh) | 一种二硫化钼负载钴掺杂氧化锌光催化降解材料及制法 |
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 | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191224 |