CN107837814A - 聚磷酸铅/磷酸银光催化材料及其合成方法 - Google Patents
聚磷酸铅/磷酸银光催化材料及其合成方法 Download PDFInfo
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- CN107837814A CN107837814A CN201610835273.7A CN201610835273A CN107837814A CN 107837814 A CN107837814 A CN 107837814A CN 201610835273 A CN201610835273 A CN 201610835273A CN 107837814 A CN107837814 A CN 107837814A
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- catalysis material
- polyphosphoric acid
- acid lead
- silver
- silver orthophosphate
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- 239000000463 material Substances 0.000 title claims abstract description 17
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 14
- 229920000137 polyphosphoric acid Polymers 0.000 title claims abstract description 12
- FJOLTQXXWSRAIX-UHFFFAOYSA-K silver phosphate Chemical compound [Ag+].[Ag+].[Ag+].[O-]P([O-])([O-])=O FJOLTQXXWSRAIX-UHFFFAOYSA-K 0.000 title claims description 13
- 238000010189 synthetic method Methods 0.000 title description 2
- AMHXQVUODFNFGR-UHFFFAOYSA-K [Ag+3].[O-]P([O-])([O-])=O Chemical class [Ag+3].[O-]P([O-])([O-])=O AMHXQVUODFNFGR-UHFFFAOYSA-K 0.000 claims abstract description 4
- 239000012153 distilled water Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 5
- 239000004254 Ammonium phosphate Substances 0.000 claims description 4
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 4
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- HUTDDBSSHVOYJR-UHFFFAOYSA-H bis[(2-oxo-1,3,2$l^{5},4$l^{2}-dioxaphosphaplumbetan-2-yl)oxy]lead Chemical compound [Pb+2].[Pb+2].[Pb+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O HUTDDBSSHVOYJR-UHFFFAOYSA-H 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- -1 silver orthophosphate compound Chemical class 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003403 water pollutant 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
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
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
- B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
- B01J27/1802—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
- B01J27/1817—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates with copper, silver or gold
-
- B01J35/39—
-
- 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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Abstract
本发明涉及一种光催化材料及其制备方法，属于无机光催化材料领域。这种光催化材料包括聚磷酸铅改性磷酸银。本发明制备的光催化材料在200到800nm波长范围内具有良好的光催化活性，能够在可见光或自然光辐射下光催化氧化降解有机化合物。
Description
技术领域
本发明涉及一种新型光催化材料。
本发明还涉及上述光催化材料的制备方法。
本发明还涉及上述光催化材料的用途。
背景技术
1977年S.N.Frank等在光催化降解水中污染物方面做出了开拓性的工作，开辟了光催化技术在环境保护领域的应用前景。随后人们开发了一系列有活性的半导体光催化剂。2010年，叶金花课题组报道了一种新型的、高效的可见光响应的光催化剂-磷酸银，研究发现磷酸银可吸收波长小于525nm的可见光和紫外光，具有很强的氧化性，在可见光照射下可催化分解水溶液中的有机染料。但是磷酸银虽然具有很多光催化材料的特有优势，比如：能够大量吸收可见光、容易改性提高其氧化能力、能够降解多种有机污染物等。但是其本身也有很多弱点，比如怕酸，稳定性差等等。本发明针对大幅提高磷酸银的光催化氧化能力，提高其稳定能力，设计合成了聚磷酸铅/磷酸银共催化剂，旨在提高其活性和稳定性。
发明内容
本发明的意义在于提供一种高效稳定的新型光催化材料，这种光催化材料能够被可见光激发，并且有非常好的光催化降解有机物质的活性，同时制备过程简便、成本很低。
本发明提供的光催化材料是聚磷酸铅改性磷酸银粒子。
本发明提供的聚磷酸铅改性磷酸银光催化材料的制备方法如下：
将一定量的硝酸银溶与蒸馏水中；将一定量的磷酸铵溶于蒸馏水中，完全溶解后加入上述溶液，室温搅拌0.5h，完全生成磷酸银后加入适量的硝酸铅，继续搅拌0.5h，使聚磷酸铅与磷酸银复合，离心，水洗多次，80℃干燥得到样品备用。
在可见光辐射下降解甲基橙的光催化活性测试具体方法和条件如下：
取0.1g含不同聚磷酸铅含量的聚磷酸铅/磷酸银复合催化剂，分别加入100ml(10mg/l)的甲基橙溶液，采用300W氙灯(λ＞400nm)为辐射光源，在持续的搅拌下每隔2min抽取少量反应液，在463nm处测定溶液吸光度。再根据甲基橙的浓度-吸光度标准曲线确定溶液浓度。
具体实施方案
实施方案1
先称取0.358g硝酸银溶于10ml蒸馏水中，再称取0.143g磷酸铵溶于10ml蒸馏水中，完全溶解后加入上述溶液，室温搅拌0.5h，完全生成磷酸银后加入0.012g的硝酸铅，继续搅拌0.5h，使聚磷酸铅与磷酸银复合，离心，水洗多次，80℃干燥得到聚磷酸铅/磷酸银复合光催化剂。
实施方案2
将实施方案1中的磷酸铵换为磷酸二氢钠，其它条件不变。
实施方案3
将实施方案1中的硝酸铅改为0.024g，其它条件不变。
实施方案4
实施方案1中的硝酸铅改为0.036g，其它条件不变。
本发明所制得的光催化材料可负载于载体上，本发明不限于以上实施方案。
Claims (2)
1.聚磷酸铅改性磷酸银光催化材料，其特征在于包括如下合成步骤：
将一定量的硝酸银溶与蒸馏水中；将一定量的磷酸铵溶于蒸馏水中，完全溶解后加入上述溶液，室温搅拌0.5h，完全生成磷酸银后加入适量的硝酸铅，继续搅拌0.5h，使聚磷酸铅与磷酸银复合，离心，水洗多次，80℃干燥得到样品备用。
2.根据权利要求1的光催化材料，其显著特征在于在可见光的照射下能够降解有机污染物。
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| CN201610835273.7A CN107837814A (zh) | 2016-09-18 | 2016-09-18 | 聚磷酸铅/磷酸银光催化材料及其合成方法 |
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| CN201610835273.7A CN107837814A (zh) | 2016-09-18 | 2016-09-18 | 聚磷酸铅/磷酸银光催化材料及其合成方法 |
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| CN107837814A true CN107837814A (zh) | 2018-03-27 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009078211A (ja) * | 2007-09-26 | 2009-04-16 | National Institute For Materials Science | 光触媒 |
| CN103464186A (zh) * | 2013-09-29 | 2013-12-25 | 天津工业大学 | 磷酸铅/磷酸银复合光催化剂及其制备方法 |
| CN103464191A (zh) * | 2013-09-29 | 2013-12-25 | 天津工业大学 | 石墨型氮化碳磷酸银复合光催化材料及其制备方法 |
| CN104174419A (zh) * | 2014-09-10 | 2014-12-03 | 天津工业大学 | 铋掺杂磷酸银光催化材料及其制备方法 |
| CN105170166A (zh) * | 2015-09-21 | 2015-12-23 | 天津工业大学 | 钴/磷酸银光催化材料及其合成方法 |
-
2016
- 2016-09-18 CN CN201610835273.7A patent/CN107837814A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009078211A (ja) * | 2007-09-26 | 2009-04-16 | National Institute For Materials Science | 光触媒 |
| CN103464186A (zh) * | 2013-09-29 | 2013-12-25 | 天津工业大学 | 磷酸铅/磷酸银复合光催化剂及其制备方法 |
| CN103464191A (zh) * | 2013-09-29 | 2013-12-25 | 天津工业大学 | 石墨型氮化碳磷酸银复合光催化材料及其制备方法 |
| CN104174419A (zh) * | 2014-09-10 | 2014-12-03 | 天津工业大学 | 铋掺杂磷酸银光催化材料及其制备方法 |
| CN105170166A (zh) * | 2015-09-21 | 2015-12-23 | 天津工业大学 | 钴/磷酸银光催化材料及其合成方法 |
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