CN114054053A - 溴氧化铋/二氧化钛复合光催化剂及其制备方法 - Google Patents
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 21
- OZKCXDPUSFUPRJ-UHFFFAOYSA-N oxobismuth;hydrobromide Chemical compound Br.[Bi]=O OZKCXDPUSFUPRJ-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000011941 photocatalyst Substances 0.000 title claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims abstract description 7
- 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 abstract description 6
- 239000012046 mixed solvent Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 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 6
- 229940043267 rhodamine b Drugs 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000012362 glacial acetic acid Substances 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 10
- 230000001699 photocatalysis Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000010936 titanium Substances 0.000 description 9
- 239000002351 wastewater Substances 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- 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
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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
- 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
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
本发明公开了一种溴氧化铋/二氧化钛复合催化剂的微波快速制备法,属于可见光催化剂制备技术领域;步骤包括:将五水合硝酸铋加入由醋酸和水组成的混合溶剂中,放到磁力搅拌器上搅拌至完全溶解,再加入二氧化钛搅拌均匀,得悬浊液;将溴化钾溶液逐滴加入到悬浊液中,得混合溶液;然后将混合溶液放入微波反应器中,设置好温度和时间进行反应,完全反应后冷却至室温,对反应产物进行离心分离,洗涤,干燥得溴氧化铋/二氧化钛复合催化剂。本发明的方法,复合催化剂制备时间缩短,单一催化剂二氧化钛和溴氧化铋可见光光催化活性提高,催化效果好。
Description
技术领域
本发明属于可见光催化剂制备技术领域,具体涉及一种溴氧化铋/二氧化钛复合光催化剂的制备及应用。
背景技术
近年来,水体污染随着人类社会的发展日益突出,其中染料废水以其色度高、生物降解性差而更难以处理,使用半导体光催化剂的处理效果使其逐渐成为一种新兴的废水处理技术。溴氧化铋具有很好的电子结构和催化性能,禁带宽度约在2.7eV,可在可见光下被激发,但其电子-空穴对复合率相对较高,限制了其光催化活性;二氧化钛作为常见的光催化剂,由于禁带宽度较大,能吸收紫外光而对可见光利用能力低制约了其应用。所以将溴氧化铋与性质稳定的二氧化钛进行复合,可以提高电子寿命,降低光生载流子的复合率,有效提高光催化效率。
发明内容
本发明的目的在于提供一种溴氧化铋/二氧化钛复合光催化剂的制备方法,改善了单一催化剂的光催化性能,制备过程缩短了反应时间,提高了合成效率。
为实现上述目的,本发明提供如下技术方案:
一种溴氧化铋/二氧化钛复合光催化剂的制备方法,步骤如下:
将五水合硝酸铋加入到冰醋酸和水的混合溶剂中,放置于磁力搅拌器上搅拌使其溶解;再加一定量的二氧化钛,混合均匀得到悬浊液;在磁力搅拌下将溴化钾溶液逐滴加入到悬浊液中,得到混合溶液;然后将混合溶液放置微波反应器中反应,待反应完成后冷却至室温;对反应产物离心分离,洗涤,干燥得溴氧化铋/二氧化钛复合光催化剂。
在可见光辐射下降解罗丹明B的光催化活性测试具体方法和条件如下:
采用300W氙灯为辐射光源,反应液为200ml 20mg/L的罗丹明B水溶液,催化剂加入量为0.2g。在剧烈的搅拌下每隔10分钟抽取少量反应液,在554nm处测定溶液吸光度。再据罗丹明B的吸光度变化确定降解率。
本发明的有益效果为:解决了制备时间长的问题,以及单一催化剂二氧化钛和溴氧化铋光催化效率低的问题;提高了制备效率,优化了催化剂性能。在可见光的照射下,可应用于有机废水中降解有机物,例如含罗丹明B等有机污染物的有机废水的处理。
具体实施方案
实施方案1
将6mmol五水合硝酸铋加入40ml质量分数为40%的乙酸中,一起放置于磁力搅拌器上搅拌5min使其溶解;再加入0.5mmol二氧化钛,混合均匀得到悬浊液;在磁力搅拌下将10ml浓度为0.5mol/L的溴化钾逐滴加入到悬浊液中,反应30min,得到混合溶液,将混合溶液放置微波反应器中,微波功率为180W,微波时间3min,待反应完成后使产物冷却至室温;对反应产物分别使用去离子水和无水乙醇清洗,离心分离;使用烘箱烘干,烘干温度为120℃,烘干时间为5h,即得Bi∶Ti摩尔比为12∶1溴氧化铋/二氧化钛复合光催化剂。
实施方案2
将实施方案1中Bi∶Ti的摩尔比12∶1改为8∶1,其它条件不变。
实施方案3
将实施方案1中Bi∶Ti的摩尔比12∶1改为9∶1,其它条件不变。
实施方案4
将实施方案1中Bi∶Ti的摩尔比12∶1改为10∶1,其它条件不变。
实施方案5
将实施方案1中Bi∶Ti的摩尔比12∶1改为11∶1,其它条件不变。
实施方案6
将实施方案1中Bi∶Ti的摩尔比12∶1改为13∶1,其它条件不变。
实施方案7
将实施方案1中Bi∶Ti的摩尔比12∶1改为14∶1,其它条件不变。
实施方案8
将实施方案1中Bi∶Ti的摩尔比12∶1改为15∶1,其它条件不变。
实施方案9
将实施方案1中Bi∶Ti的摩尔比12∶1改为16∶1,其它条件不变。
本发明不限于以上实施方案。
Claims (2)
1.一种溴氧化铋/二氧化钛复合光催化剂的制备方法,其特征在于,按照以下步骤实施:将一定量的五水合硝酸铋加入到冰醋酸和水的混合溶剂中,放置于磁力搅拌器上搅拌使其完全溶解;再加一定量的二氧化钛,混合均匀得到悬浊液;在磁力搅拌下将溴化钾溶液逐滴加入到上述悬浊液中,得到混合溶液;然后将混合溶液放置微波反应器中反应,待反应完成后冷却至室温;对反应产物离心分离,洗涤,干燥得溴氧化铋/二氧化钛复合光催化剂。
2.权利要求1所述溴氧化铋/二氧化钛复合光催化剂,特征在于在可见光的照射下降解罗丹明B有机染料。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115957787A (zh) * | 2022-11-23 | 2023-04-14 | 浙江大学 | 层状三元复合光催化材料的制备方法 |
CN118005492A (zh) * | 2024-04-08 | 2024-05-10 | 天津农学院 | 基于草酸氧钛锶钡摩擦催化氧化苯甲醇制苯甲醛的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106000437A (zh) * | 2016-05-18 | 2016-10-12 | 河海大学 | 一种可见光响应型氯氧铋光催化剂及其制备方法与应用 |
CN107175097A (zh) * | 2017-06-22 | 2017-09-19 | 陕西科技大学 | 一种二硫化锡包裹二氧化钛复合光催化剂及其制备方法 |
AU2020102258A4 (en) * | 2020-09-15 | 2020-10-29 | Qilu University Of Technology | MIXED CRYSTAL TiO2/BiOBr COMPOSITE AND PREPARATION METHOD AND APPLICATION THEREOF |
-
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- 2021-12-10 CN CN202111503829.XA patent/CN114054053A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106000437A (zh) * | 2016-05-18 | 2016-10-12 | 河海大学 | 一种可见光响应型氯氧铋光催化剂及其制备方法与应用 |
CN107175097A (zh) * | 2017-06-22 | 2017-09-19 | 陕西科技大学 | 一种二硫化锡包裹二氧化钛复合光催化剂及其制备方法 |
AU2020102258A4 (en) * | 2020-09-15 | 2020-10-29 | Qilu University Of Technology | MIXED CRYSTAL TiO2/BiOBr COMPOSITE AND PREPARATION METHOD AND APPLICATION THEREOF |
Non-Patent Citations (2)
Title |
---|
TAN XIN ET AL.: "Preparation and Photocatalytic Activity of BiOBr/TiO2 Heterojunction Nanocomposites", TRANS. TIANJIN UNIV., vol. 22, no. 3, pages 1 * |
丁爱琴等: "简捷微波化学制备BiOBr纳米片及可见光催化性能", 合肥学院学报(自然科学版), vol. 24, no. 2, pages 1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115957787A (zh) * | 2022-11-23 | 2023-04-14 | 浙江大学 | 层状三元复合光催化材料的制备方法 |
CN118005492A (zh) * | 2024-04-08 | 2024-05-10 | 天津农学院 | 基于草酸氧钛锶钡摩擦催化氧化苯甲醇制苯甲醛的方法 |
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