CN108079984A - 一种圆角立方体型羟基锡酸锌太阳光催化剂的制备方法 - Google Patents
一种圆角立方体型羟基锡酸锌太阳光催化剂的制备方法 Download PDFInfo
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- 229940071182 stannate Drugs 0.000 title claims abstract description 24
- 239000011701 zinc Substances 0.000 title claims abstract description 24
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 24
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 6
- 239000013049 sediment Substances 0.000 claims abstract description 6
- 239000003643 water by type Substances 0.000 claims abstract description 6
- 239000011592 zinc chloride Substances 0.000 claims abstract description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 239000000243 solution Substances 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 12
- 238000013019 agitation Methods 0.000 abstract description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract description 5
- 238000000227 grinding Methods 0.000 abstract description 5
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- 230000001699 photocatalysis Effects 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 229910020212 Na2SnO3 Inorganic materials 0.000 description 3
- 239000001045 blue dye Substances 0.000 description 3
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 3
- 229960000907 methylthioninium chloride Drugs 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011858 nanopowder Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- VSKDLKJOZFLQQZ-UHFFFAOYSA-M O[Sn] Chemical compound O[Sn] VSKDLKJOZFLQQZ-UHFFFAOYSA-M 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- -1 hydroxyl free radical Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-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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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/14—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of germanium, tin or lead
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
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- C02F2101/40—Organic compounds containing sulfur
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Abstract
本发明公开了一种圆角立方体型羟基锡酸锌太阳光催化剂的制备方法,将0.8mmol ZnCl2加入到16mL去离子水中并搅拌至完全溶解,在搅拌的过程中加入1mL浓氨水溶液得到乳白色溶液,2min后滴加16mL摩尔浓度为0.05mol/L的Na2SnO3溶液,在搅拌条件下继续反应15min,将沉淀物离心、水洗后置于干燥箱中烘干,再置于研钵中研磨得到圆角立方体型羟基锡酸锌太阳光催化剂。本发明采用一锅法制备出圆角立方体型羟基锡酸锌太阳光催化剂,制得的光催化剂具有在自然太阳光照射下对有机污染物降解效率较高的特性。
Description
技术领域
本发明属于光催化材料的合成技术领域,具体涉及一种圆角立方体型羟基锡酸锌太阳光催化剂的制备方法。
背景技术
光催化氧化技术作为一种新式高效的水处理技术,对处理染料废水起到了非常重要的作用。该技术几乎能够将目标有机物在可见光、紫外光、模拟太阳光或自然太阳光下矿化成二氧化碳、水等无害物质。这种方法具有设备简单、氧化性能强、高效节能、操作条件容易控制等特点,并且不会对环境造成二次污染。研究发现利用TiO2光催化氧化法来处理生活和生产中的各种废水,在技术上可行,但是仅能利用太阳光中不足4%的紫外光源。鉴于能源需求的压力,为了充分有效的利用太阳光,寻求一种高效的可见光催化剂是光催化技术应用的一个极大挑战。
羟基锡酸盐是一种典型的钙钛矿结构化合物,由于它特殊的晶胞结构,使其具有优异的物理化学性能,可以应用在多个领域,如气敏材料、阻燃材料、高温超导材料、光学材料、催化剂以及锂电池负极等多个领域。ZnSn(OH)6是一种禁带宽度较宽的半导体材料,具有钙钛矿型晶体结构,ZnSn(OH)6这种独特的分子结构表面分布着大量的羟基,有利于在光催化反应过程中与光生载流子反应形成氢氧自由基(·OH),在光催化反应过程中,这些自由基可成为活性中心,这也决定了羟基锡酸锌优异的光催化性能。因此,它将为光催化去除和降解有机污染物开辟一条新的途径,在环境净化和新能源开发方面具有非常良好的应用前景。
发明内容
本发明解决的技术问题是提供了一种圆角立方体型羟基锡酸锌太阳光催化剂的制备方法,该制备方法具有制备工艺简单、成本低廉、制备条件易于控制、合成周期短且组成成分均匀等优点,与其它制备方法相比,进一步节约了生产成本,节约了能耗,既环保又经济。此方法通过溶液中的各种化学反应直接得到化学成分均一的纳米粉体材料,并且容易制备粒度较小且分布均匀的纳米粉体材料,从而得到性能优异的圆角立方体型羟基锡酸锌太阳光催化剂。
本发明为解决上述技术问题采用如下技术方案,一种圆角立方体型羟基锡酸锌太阳光催化剂的制备方法,其特征在于具体步骤为:将0.8mmol ZnCl2加入到16mL去离子水中并搅拌至完全溶解,在搅拌的过程中加入1mL浓氨水溶液得到乳白色溶液,2min后滴加16mL摩尔浓度为0.05mol/L的Na2SnO3溶液,在搅拌条件下继续反应15min,将沉淀物离心、水洗后置于干燥箱中烘干,再置于研钵中研磨得到圆角立方体型羟基锡酸锌太阳光催化剂。
本发明与现有技术相比具有以下有益效果:本发明采用一锅法制备出圆角立方体型羟基锡酸锌太阳光催化剂,制得的光催化剂具有在自然太阳光照射下对有机污染物降解效率较高的特性。
附图说明
图1为制得的圆角立方体型羟基锡酸锌太阳光催化剂及其煅烧产物的XRD图;
图2为制得的圆角立方体型羟基锡酸锌太阳光催化剂的SEM图。
具体实施方式
以下通过实施例对本发明的上述内容做进一步详细说明,但不应该将此理解为本发明上述主题的范围仅限于以下的实施例,凡基于本发明上述内容实现的技术均属于本发明的范围。
实施例1
将0.8mmol ZnCl2加入到16mL去离子水中并搅拌至完全溶解,在搅拌的过程中加入1mL浓氨水溶液(25wt%-28wt%)得到乳白色溶液,2min后滴加16mL摩尔浓度为0.05mol/L的Na2SnO3溶液,在搅拌条件下继续反应15min,将沉淀物离心、水洗后置于干燥箱中烘干,再置于研钵中研磨得到圆角立方体型羟基锡酸锌太阳光催化剂,经过自然太阳光照射5h,对5mg/L的亚甲基蓝染料废水的去除率为70.29%。
实施例2
将0.8mmol ZnCl2加入到16mL去离子水中并搅拌至完全溶解,在搅拌的过程中加入1mL浓氨水溶液(25wt%-28wt%)得到乳白色溶液,2min后滴加16mL摩尔浓度为0.05mol/L的Na2SnO3溶液,在搅拌条件下继续反应15min,将沉淀物离心、水洗后置于干燥箱中烘干,再置于研钵中研磨得到羟基锡酸锌光催化剂,将上述制得的羟基锡酸锌光催化剂在300℃的条件下煅烧得到产物,经过自然太阳光照射5h,对5mg/L的亚甲基蓝染料废水的去除率为71.84%。
实施例3
将0.8mmol ZnCl2加入到16mL去离子水中并搅拌至完全溶解,在搅拌的过程中加入1mL浓氨水溶液(25wt%-28wt%)得到乳白色溶液,2min后滴加16mL摩尔浓度为0.05mol/L的Na2SnO3溶液,在搅拌条件下继续反应15min,将沉淀物离心、水洗后置于干燥箱中烘干,再置于研钵中研磨得到羟基锡酸锌光催化剂,将上述制得的羟基锡酸锌光催化剂在700℃的条件下煅烧得到产物,经过自然太阳光照射5h,对5mg/L的亚甲基蓝染料废水的去除率为49.58%。
基于以上实施例,选取常温下制备的羟基锡酸锌光催化剂的性能较优,通过进一步的表征研究,该条件下制备的羟基锡酸锌光催化剂具有圆角立方体结构,相比于传统的光催化材料,本发明制得的羟基锡酸锌光催化剂能够响应自然太阳光,具有可见光催化活性,且制备方法简单快速,无二次污染。
以上实施例描述了本发明的基本原理、主要特征及优点,本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明原理的范围下,本发明还会有各种变化和改进,这些变化和改进均落入本发明保护的范围内。
Claims (1)
1.一种圆角立方体型羟基锡酸锌太阳光催化剂的制备方法,其特征在于具体步骤为:将0.8mmol ZnCl2加入到16mL去离子水中并搅拌至完全溶解,在搅拌的过程中加入1mL浓氨水溶液得到乳白色溶液,2min后滴加16mL摩尔浓度为0.05mol/L的Na2SnO3溶液,在搅拌条件下继续反应15min,将沉淀物离心、水洗后置于干燥箱中烘干,再置于研钵中研磨得到圆角立方体型羟基锡酸锌太阳光催化剂。
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CN110038551A (zh) * | 2019-05-28 | 2019-07-23 | 河南师范大学 | 具有中空多面体结构的锡酸锌光催化剂及其制备方法 |
CN110040978A (zh) * | 2019-04-26 | 2019-07-23 | 陈文学 | 一种自洁净防雾玻璃的制备工艺 |
CN110075824A (zh) * | 2019-04-18 | 2019-08-02 | 西安建筑科技大学 | 一种Yb掺杂改性锡酸锌光电极的制备及其应用 |
CN117696045A (zh) * | 2024-02-05 | 2024-03-15 | 浙江师范大学杭州校区 | 一种兼具高效光催化和压电催化的s-型异质结催化剂及其制备方法和应用 |
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CN110075824A (zh) * | 2019-04-18 | 2019-08-02 | 西安建筑科技大学 | 一种Yb掺杂改性锡酸锌光电极的制备及其应用 |
CN110040978A (zh) * | 2019-04-26 | 2019-07-23 | 陈文学 | 一种自洁净防雾玻璃的制备工艺 |
CN110040978B (zh) * | 2019-04-26 | 2020-05-15 | 吴珊珊 | 一种自洁净防雾玻璃的制备工艺 |
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CN117696045A (zh) * | 2024-02-05 | 2024-03-15 | 浙江师范大学杭州校区 | 一种兼具高效光催化和压电催化的s-型异质结催化剂及其制备方法和应用 |
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