CN115007133A - 一种空气净化材料 - Google Patents
一种空气净化材料 Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 11
- 238000004887 air purification Methods 0.000 title claims abstract description 8
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 30
- 150000003839 salts Chemical class 0.000 claims abstract description 21
- 229910007717 ZnSnO Inorganic materials 0.000 claims abstract description 20
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 14
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 10
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 8
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- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
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- 230000000593 degrading effect Effects 0.000 abstract description 4
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
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- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- FUECGUJHEQQIFK-UHFFFAOYSA-N [N+](=O)([O-])[O-].[W+4].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-] Chemical compound [N+](=O)([O-])[O-].[W+4].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-] FUECGUJHEQQIFK-UHFFFAOYSA-N 0.000 description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 3
- YQMWDQQWGKVOSQ-UHFFFAOYSA-N trinitrooxystannyl nitrate Chemical compound [Sn+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O YQMWDQQWGKVOSQ-UHFFFAOYSA-N 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
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- 239000007789 gas Substances 0.000 description 2
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
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- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- XZWYZXLIPXDOLR-UHFFFAOYSA-N metformin Chemical compound CN(C)C(=N)NC(N)=N XZWYZXLIPXDOLR-UHFFFAOYSA-N 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 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
- 239000008096 xylene Substances 0.000 description 1
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Abstract
本发明涉及一种空气净化光催化材料，其特征在于，采用如下工艺制备：(a)将摩尔比为1:1的Zn盐、Sn盐加入纯净水‑乙醇中，纯净水‑乙醇的体积比为1:1，超声混合均匀，随后加入一定量的三乙胺和氟化铵，将该混合液在高压反应釜中进行乙醇‑水热反应；(b)将产物采用去离子水和乙醇交替洗涤，随后将步骤(1)制备得到的ZnSnO3溶于去离子水中，加入W盐、尿素和PVP，水热反应；本申请首先采用乙醇‑水热工艺中引入三乙胺和氟化铵制备得到多孔球状的ZnSnO3，在第二步工艺中在其表面部分包覆有纳米的WO3，多孔的球状结构和有利于对污染物形成高效的物理性吸附，另外，ZnSnO3和WO3复合后具有良好的光催化性能，协同催化降解空气中的污染物。
Description
技术领域
本发明涉及一种空气净化材料的制备方法。
背景技术
随着工业化的迅速发展，各种工业污染气体、机动车辆尾气大量排放到空气中，直接导致大气环境污染问题日益严重和恶化，此外，伴随着居民生活水平的不断提升，装修水平不断改善，室内空气质量的严重恶化，挥发性有机化合物，例如甲醛、苯、甲苯、二甲苯严重威胁人体健康。光催化法，是利用光催化剂在紫外线照射下生成的空穴具有的氧化分解能力，在室温下可将有机污染物氧化为CO2和H2O等无机物，反应条件温和，降解效率高，越来越受到研究者的广泛关注。
CN109806765A公开了一种空气净化复合材料及其制备方法，其制备方法包括：制备硅藻土负载纳米二氧化钛复合材料；在硅藻土负载纳米二氧化钛复合材料表面沉积碳量子点，得到空气净化复合材料。CN1583248A公开了一种处理室内微污染空气的SiO2/TiO2复合纳米光催化膜及制备方法，其制备方法为sol－gel法，首先配制溶胶，其次将处理好的玻璃纤维浸渍在配制好的溶胶中，然后提拉，干燥，焙烧而成。该催化膜在紫外光下可有效地处理甲醛等室内微污染空气。CN107349931A公开了降解室内污染物的光复合催化剂及其制备方法，将纳米二氧化钛放入容器中，在容器中加入蒸馏水，搅拌，形成白色悬浊液；在得到的白色悬浊液中加入NaOH，搅拌，洗涤，离心，烘干，煅烧，得复合催化剂TiO2/NaOH；利用光还原法将Au负载在复合催化剂TiO2/NaOH上，即得降解室内污染物的光复合催化剂Au-TiO2/NaOH。
发明内容
一种空气净化光催化材料，其特征在于，采用如下工艺制备：
(a)多孔球状的ZnSnO3的制备：将摩尔比为1:1的Zn盐、Sn盐加入纯净水-乙醇中，纯净水-乙醇的体积比为1:1，超声混合均匀，随后加入一定量的三乙胺和氟化铵，将该混合液在高压反应釜中进行乙醇-水热反应；
(b)多孔球状的ZnSnO3-纳米状WO3的制备：将得到的多孔球状的ZnSnO3采用去离子水和乙醇交替洗涤，随后将步骤(1)制备得到的ZnSnO3溶于去离子水中，加入W盐、尿素和PVP，水热反应。
优选的，Zn盐、Sn盐、W盐为对应的硝酸盐、醋酸盐；
优选的，Zn盐、Sn盐、三乙胺和氟化铵的摩尔比为1:1:1:1；
优选的，步骤(1)-(2)的反应温度为180-200℃，反应时间为12-20h；
优选的，W盐、尿素和PVP的比例为(5-10)mmol：(5-10)mmol：(10-20)mg；
有益技术效果：本申请首先采用乙醇-水热工艺中引入三乙胺和氟化铵制备得到多孔球状的ZnSnO3，在第二步工艺中在其表面部分包覆有纳米的WO3，多孔的球状结构和有利于对污染物形成高效的物理性吸附，另外，ZnSnO3和WO3复合后具有良好的光催化性能，协同催化降解空气中的污染物。
附图说明
图1为本申请制备得到的复合材料的SEM图。
具体实施方式
实施例1
(a)将摩尔比为1:1的20mmol的硝酸锌、20mmol的硝酸锡加入80ml纯净水-乙醇中，纯净水-乙醇的体积比为1:1，超声混合均匀，随后加入20mmol的三乙胺和20mmol氟化铵，将该混合液在高压反应釜中进行乙醇-水热反应；反应温度为180摄氏度，反应时间为12h；
(b)将得到的多孔球状的ZnSnO3采用去离子水和乙醇交替洗涤，随后将步骤(1)制备得到的ZnSnO3溶于80ml去离子水中，加入5mmol的硝酸钨、5mmol尿素和10mgPVP，水热反应，反应温度为180摄氏度，反应时间为12h；得到ZnSnO3-WO3产物。
实施例2
(a)将摩尔比为1:1的30mmol的硝酸锌、30mmol的硝酸锡加入80ml纯净水-乙醇中，纯净水-乙醇的体积比为1:1，超声混合均匀，随后加入30mmol的三乙胺和320mmol氟化铵，将该混合液在高压反应釜中进行乙醇-水热反应；反应温度为180摄氏度，反应时间为12h；
(b)将得到的多孔球状的ZnSnO3采用去离子水和乙醇交替洗涤，随后将步骤(1)制备得到的ZnSnO3溶于80ml去离子水中，加入5mmol的硝酸钨、5mmol尿素和10mgPVP，水热反应，反应温度为180摄氏度，反应时间为12h；得到ZnSnO3-WO3产物。
对比例1
将摩尔比为1:1的20mmol的硝酸锌、20mmol的硝酸锡加入80ml纯净水-乙醇中，纯净水-乙醇的体积比为1:1，超声混合均匀，随后加入20mmol的三乙胺和20mmol氟化铵，将该混合液在高压反应釜中进行乙醇-水热反应；反应温度为180摄氏度，反应时间为12h；得到ZnSnO3。
对比例2
在80ml去离子水中，加入5mmol的硝酸钨、5mmol尿素和10mgPVP，水热反应，反应温度为180摄氏度，反应时间为12h；得到WO3产物。
将实施例1-2以及对比例1-2的光催化材料分散于玻璃表面，将其放入通有一定浓度的甲醛与苯的反应装置，光源为带有可见光滤光片的300W氙灯，测试24h后甲醛和苯的去除率。
| 甲醛的去除率 | 苯的去除率 | |
| 实施例1 | 94.5％ | 91.3％ |
| 实施例2 | 94.2％ | 93.8％ |
| 对比例1 | 82.1％ | 83.8％ |
| 对比例2 | 86.2％ | 81.9％ |
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。
Claims (5)
1.一种空气净化光催化材料，其特征在于，采用如下工艺制备：
(a)多孔球状的ZnSnO3的制备：将摩尔比为1:1的Zn盐、Sn盐加入纯净水-乙醇中，纯净水-乙醇的体积比为1:1，超声混合均匀，随后加入一定量的三乙胺和氟化铵，将该混合液在高压反应釜中进行乙醇-水热反应；
(b)多孔球状的ZnSnO3-纳米状WO3的制备：将得到的多孔球状的ZnSnO3采用去离子水和乙醇交替洗涤，随后将步骤(1)制备得到的ZnSnO3溶于去离子水中，加入W盐、尿素和PVP，水热反应。
2.根据权利要求1所述的一种空气净化光催化材料，Zn盐、Sn盐、W盐为对应的硝酸盐、醋酸盐。
3.根据权利要求1所述的一种空气净化光催化材料，Zn盐、Sn盐、三乙胺和氟化铵的摩尔比为1:1:1:1。
4.根据权利要求1所述的一种空气净化光催化材料，步骤(1)-(2)的反应温度为180-200℃，反应时间为12-20h。
5.根据权利要求1-2所述的一种空气净化光催化材料，W盐、尿素和PVP的比例为(5-10)mmol：(5-10)mmol：(10-20)mg。
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