CN1301780C - 一种有害气体捕捉材料及其制备方法 - Google Patents
一种有害气体捕捉材料及其制备方法 Download PDFInfo
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- CN1301780C CN1301780C CNB2004100090625A CN200410009062A CN1301780C CN 1301780 C CN1301780 C CN 1301780C CN B2004100090625 A CNB2004100090625 A CN B2004100090625A CN 200410009062 A CN200410009062 A CN 200410009062A CN 1301780 C CN1301780 C CN 1301780C
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- 239000004615 ingredient Substances 0.000 claims abstract 2
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Abstract
本发明涉及一种用于清除建筑材料、车辆内装饰材料、室内装修材料、家具、烟草、天然气或煤气燃烧释放出的甲醛、乙醛、氨气、硫化氢、乙酸等有害气体的有害气体捕捉材料及其制备方法，由载体材料、NH4基化合物、NH2基的化合物、催化剂、金属的卤化物、硝酸盐、硫酸盐、亚硫酸盐、碱、弱酸强碱盐、酸碱指示剂、胶粘剂七种成分组成，在室内、车辆内或家具中挂、贴或铺设相应数量的本发明制备的有害气体捕捉材，能够彻底清除游离甲醛、乙醛、氨气、硫化氢、乙酸等的危害，操作简单、成本低、无二次污染、持续时间长。
Description
技术领域
本发明涉及一种用于清除建筑材料、车辆内装饰材料、室内装修材料、家具、烟草、天然气或煤气燃烧释放出的甲醛、乙醛、氨气、硫化氢、乙酸等有害气体的有害气体捕捉材料及其制备方法。
背景技术
甲醛是一种无色易溶的刺激性气体，可经呼吸道吸收，已经被世界卫生组织确定为可疑致癌和致畸形物质。大量文献表明，甲醛对人体健康的影响主要表现在嗅觉异常、刺激、过敏、肺功能异常、肝功能异常、免疫功能异常等方面。
氨气是一种碱性物质，它对接触的皮肤组织产生腐蚀和刺激作用，对动物或人体的上呼吸道有刺激和腐蚀作用，减弱人体对疾病的抵抗力，浓度过高时还可通过三叉神经末梢的反射作用而引起心脏停搏和呼吸停止。短期内吸入大量氨气后可出现流泪、咽痛、声音嘶哑、咳嗽、痰带血丝、胸闷、呼吸困难，可伴有头晕、头痛、恶心、呕吐、乏力等，严重者可发生肺水肿、成人呼吸窘迫综合征，同时可能发生呼吸道刺激症状。
硫化氢是一种神经毒剂。亦为窒息性和刺激性气体。其毒作用的主要靶器是中枢神经系统和呼吸系统，亦可伴有心脏等多器官损害。接触较高浓度硫化氢后可出现头痛、头晕、乏力、共济失调，可发生轻度意识障碍、突然发生昏迷，也可发生呼吸困难或呼吸停止后心跳停止，即在接触后数秒或数分钟内呼吸骤停，数分钟后可发生心跳停止而死亡。
甲醛、乙醛、氨气、硫化氢等有害气体来源于建筑材料、建筑和车辆装修材料、家具、纺织品、烟草、天然气或煤气燃烧产物、下水道等。广泛存在于各种室内、室外和车辆内部环境，危害大。
为了减轻甲醛、乙醛、氨气、硫化氢、乙酸等对室内的污染，目前采取以下措施：(a)使用不含该类物质或含量非常少的材料；(b)在人造板或建筑材料的表面喷涂捕捉剂；(c)使用空气净化器；(d)通过换气降低室内的浓度。但上述措施存在以下问题：(a)不含甲醛、乙醛、氨气、硫化氢、乙酸等的材料与含有的材料相比，价格非常高或性能差；(b)在人造板或建筑材料的表面喷涂捕捉剂，影响了产品的深加工或使用性能；(c)使用空气净化器，投资大，运行需要电力，捕捉成本高；(d)通过换气降低室内甲醛的浓度，造成能源浪费。
发明内容
本发明的目的在于利用一些能与甲醛、乙醛、氨气、硫化氢、乙酸等有害气体发生反应，生成无害气体或固体沉积物的化学物质与以纸、布等薄片或多孔材料构成的载体相结合的捕捉甲醛、乙醛、氨气、硫化氢、乙酸等有害气体的有害气体捕捉材料及其制备方法。能够长时间、有效、彻底地清除室内、车辆内及家具中的甲醛、乙醛、氨气、硫化氢、乙酸等，使室内、车辆内或家具中甲醛、乙醛、氨气、硫化氢、乙酸等的浓度符合《民用建筑工程室内环境污染物浓度限量》的要求。
本发明的目的是这样实现的：有害气体捕捉材料是由A.各种薄片状材料、或多孔材料构成的载体材料，B.NH4基化合物、或NH2基化合物、或它们任意几种的混合物，C.四价金属的磷酸盐、或二价金属的氧化物、或光催化剂、或它们任意几种的混合物构成的催化剂、D.金属的卤化物、或硝酸盐、或硫酸盐、或亚硫酸盐、或碱、或它们任意几种的混合物，E.碱、或弱酸强碱盐、或它们任意几种的混合物，F.酸碱指示剂、G.胶粘剂等七种成分组成。
载体材料为纸、壁纸、无纺布或纺织布、海绵、刨切单板、刨切微薄木等各种薄片状材料、以及其它多孔材料，厚度为0.01～10.0mm，定量为1～6000g/m2，它在甲醛捕捉材中起载体作用。
含有NH4基的化合物具体指式(1)所示结构的化合物。
(NH4)nXm (1)式
{式中n和m为整数，X为酸根。}酸根指盐酸、溴酸、硝酸、亚硝酸、硫酸、亚硫酸、过硫酸、磷酸、磺酸、碳酸、硼酸、羧酸等的酸根。
(1)式的化合物具体指氯化铵、溴化铵、硝酸铵、亚硝酸铵、硫酸铵、亚硫酸铵、过硫酸铵、磷酸氢二铵、磷酸二氢铵、磷酸三铵、聚磷酸铵、焦磷酸铵、氨基磺酸铵、碳酸铵、碳酸氢铵、硼酸铵、硼酸锌铵、草酸铵等。
含有NH2基的化合物指酰胺及其衍生物、双氰胺、三聚氰胺、水合肼、水合肼与羧酸或二羧酸反应而成的酰肼类化合物。
酰胺及其衍生物具体指尿素、硫脲、二氧化硫脲、1，2-亚乙基硫脲、乙胺硫脲、对氨基苯磺酰胺、乙酰胺、三甲基丁酰胺等。
酰肼类化合物包括分子中含有1个酰肼基的一元酰肼基化合物、分子中含有2个酰肼基的二酰肼基化合物和分子中含有3个及以上酰肼基的聚酰肼化合物。
一元酰肼基化合物具体指式(2)所示结构的化合物。
R-CO-NHNH2 (2)
{式中R为氢原子、烷基或具有取代基的芳基。}烷基指甲基、乙基、正丙基、正丁基、正戊基、正己基等碳原子数为1～12的直链状烷基。芳基指苯基、连二苯基、萘基等。芳基的取代基可以是氢、氟、氯、溴等原子，甲基、乙基、正丙基、乙丙基、正丁基、异丁基等碳原子数为1～4的直链状或支链状烷基。
(2)式的化合物具体指甲酰肼、乙酰肼、丙酰肼、丁酰肼、戊酰肼、己酰肼、十二烷基酸(月桂酸)酰肼、邻羟基苯甲酸(水杨酸)酰肼、对-羟基苯(甲)酰胺酰肼、萘(甲)酸酰肼、3-羟基-2-萘(甲)酸酰肼等。
二酰肼化合物具体指式(3)所示结构的化合物。
H2NHN-X-NHNH2 (3)
{式中X代表CO-基或-CO-Y-CO-基，Y代表烷撑或丙炔基。}Y代表的烷撑具体指甲撑、乙撑、丙撑、丁撑、戊撑、己撑、庚撑、辛撑、壬撑、癸撑、十一烷撑等碳原子数为1～12的直链状烷撑，可以用氢基取代烷撑。Y代表的丙炔基具体指苯撑、联苯撑、萘撑、蒽撑、菲撑等。丙炔基的取代基可以是氢、氟、氯、溴等原子，甲基、乙基、正丙基、乙丙基、正丁基、异丁基等碳原子数为1～4的直链状或支链状烷基。
(3)式的化合物具体指碳酰肼、草酸二酰肼、丙二酸二酰肼、丁二酸二酰肼、己二酸二酰肼、壬二酸二酰肼、癸二酸二酰肼、马来酸二酰肼、富马酸二酰肼、二甘醇酸二酰肼、酒石酸二酰肼、苹果酸二酰肼、异苯二甲酸二酰肼、对苯二甲酸二酰肼、大马酸二酰肼、2，6-萘甲酸二酰肼等。
B可以是上述化合物中的一种，也可以是两种及其以上的混合物。它能够在室温下、有或者没有催化剂的条件下与甲醛或乙醛发生化学反应，生成不可逆的化合物六次甲基四胺或含有-N＝CH2基的化合物。其中硫酸铵、硝酸铵、过硫酸铵、氨基磺酸铵、硫脲、三聚氰胺、草酸二酰肼、丙二酸二酰肼、丁二酸二酰肼、己二酸二酰肼等化合物的捕捉效果较好。
催化剂由四价金属的磷酸盐、二价金属的氧化物、光催化剂、二氧化硅等无机化合物组成。
四价金属的磷酸盐中的四价金属具体指钛、锆、铪、釷、锗、锡、铅等，其中钛、锆、锡较好。四价金属的磷酸盐中的磷酸指正磷酸、偏磷酸、焦磷酸、三磷酸、四磷酸等。四价金属的磷酸盐通常不溶于水或难溶于水，单独或两种以上混合使用。
两价金属的氧化物中的两价金属具体指铜、镁、钙、锶、钡、锌、镉、铬、钼、锰、铁、钌、钴、铑、镍、钯等。其中铜、锌、锰、铁、钴、镍等金属的两价氧化物较好，不溶于水或难溶于水，单独或两种以上混合使用。
四价金属的磷酸盐和两价金属的氧化物的比例：换算成金属原子比，四价金属/两价金属＝0.1～10，最好为0.2～5。在四价金属的磷酸盐和两价金属的氧化物的复合物中加入光催化剂，具有非常高的催化活性，在有紫外线或无紫外线的条件下，能够长时间有效地除去臭气成分等化合物。
光催化剂具体指硫化镉、硫化锌、硫化铟、硫化铅、硫化铜、硫化钼、硫化钨、硫化锑、硫化铋、硫化镉锌、锡化镉、锡化铟、锡化钨、锡化汞、锡化铅、碲化镉、氧化钛、氧化锌、氧化钨、氧化镉、氧化铟、氧化银、氧化锰、氧化铜、三氧化二铁、二氧化锡、砷化镉、磷化镉、磷化锌等。其中硫化镉、硫化锌、氧化钛、氧化锌、氧化钨等较好。
光催化剂与四价金属的磷酸盐和两价金属的氧化物的比例：光催化剂/(四价金属的磷酸盐+两价金属的氧化物)＝0.01～10，最好为0.02～5。
二氧化硅可以增大催化剂的比表面积、提高吸附量。二氧化硅的添加量：换算成原子比，硅/(四价金属+两价金属)＝0～20，最好为1～5。
催化剂C可以是四价金属的磷酸盐+两价金属的氧化物、或者四价金属的磷酸盐+两价金属的氧化物+光催化剂、或者四价金属的磷酸盐+两价金属的氧化物+二氧化硅、或者四价金属的磷酸盐+两价金属的氧化物+光催化剂+二氧化硅。它能够在室温下、有或者没有紫外线的条件下与甲醛、乙醛、氨气、硫化氢发生化学反应，生成不可逆的无害气体或固体沉积物。
金属的卤化物具体指氟化锑、氟化钾、氟化银、氟化锡、氟化钒、氯化钙、氯化镁、氯化镁钾、氯化钡、氯化锶、氯化锌、氯化锑、氯化铝、氯化铈、氯化钛、氯化锰、氯化锂、氯化钨、溴化钙、溴化镁、溴化锶、溴化钡、溴化锌、溴化铝、溴化镍、溴化铝、溴化钨、碘化钙、碘化锶、碘化钡、碘化镁、碘化锰、碘化铝、碘化锶、碘化银、碘化锂、碘化钴等。
金属的硝酸盐具体指硝酸铝、硝酸钙、硝酸镁、硝酸钠等。
金属的硫酸盐具体指硫酸钠、硫酸镁、硫酸锑、硫酸钾、硫酸钛、硫酸锰、硫酸钙、硫酸钛等。
金属的亚硫酸盐具体指亚硫酸钠、亚硫酸钾、亚硫酸钙、亚硫酸镁、亚硫酸镁、亚硫酸锌、亚硫酸氢钠、亚硫酸氢钾等。
金属的碱具体指氢氧化钠、氢氧化钾、氢氧化锶等。
D可以是上述化合物中的一种，或任意几种的的混合物。单独使用D时，它对有害气体的捕捉效果较差，或者没有效果。但在B组分中加入D组分后，能够显著地提高B组分的捕捉效果。其中金属的卤化物，特别是碱土金属的氯化物效果较好。
E所指的碱具体为氢氧化钠、氢氧化钾等。弱酸强碱盐具体为碳酸钠、碳酸钾、碳酸钙、磷酸钠、磷酸钾等。E可以是上述化合物中的一种，或任意几种的的混合物。单独使用E时，它对有害气体的捕捉效果较差，或者没有效果。但在B组分中加入E组分后，能够中和B组分中铵盐与醛类反应释放出的酸，防止酸性物质造成A组分性能劣化或变色。
酸碱指示剂为公知的、用以判别其它物质酸碱度的化合物。加入F组分，可以掌握B和C组分捕捉醛类的程度，以确定是否需要更换捕捉材。
G所指的胶粘剂具体指淀粉胶、蛋白胶、聚醋酸乙烯酯乳液等。加入G组分，可以提高B、C、D、E组分的附着力。
B、C、D、E、F、G等六种成分的用量：以组分A的单位面积为基准，B组分的用量为0.5～200g/m2，最好为1～50g/m2，低于1g/m2捕捉效果较差，高于50g/m2捕捉能力过剩、造成材料浪费；C组分的用量为0～100g/m2，最好为2～50g/m2，低于2g/m2捕捉效果较差，高于50g/m2捕捉能力过剩、造成材料浪费；D组分的用量为0～600g/m2，最好为1～150g/m2，低于1g/m2或高于150g/m2效果不明显；E组分的用量为0～200g/m2，最好为1～50g/m2，低于1g/m2效果较差，高于50g/m2中和能力过剩、造成材料浪费；F组分的用量为0～20g/m2，最好为0.05～5g/m2，低于0.05g/m2显示效果较差，高于5g/m2显示能力过剩、造成材料浪费；G组分的用量为B组分的用量为0～1000g/m2，最好为2～80g/m2，低于1g/m2附着力较差，高于80g/m2影响B组分和C组分的捕捉效果、并且造成材料浪费。
本发明目的实施：(1)将B、C、D、E、F、G等六种组分的粉状物或溶液加入纸浆，在抄纸沉积于纸坯中，制成捕捉纸或捕捉壁纸；(2)将B、C、D、E、F、G等六种组分配制成溶液，用该溶液浸渍或喷涂纸、壁纸、无纺布、海绵、纺织布、沙发罩、窗帘、百叶窗、刨切单板或微薄木、或其它多孔材料，制成捕捉纸、捕捉壁纸、捕捉布、捕捉沙发罩、捕捉窗帘、捕捉百叶窗、捕捉单板、捕捉刨切微薄木；(3)在浆料或染料中加入B、C、D、E、F、G等六种组分，制成捕捉布。
即使使用符合《室内装饰装修材料人造板及其制品中甲醛释放限量》、《室内装饰装修材料内墙涂料中有害物质限量》、《室内装饰装修材料胶粘剂中有害物质限量》、《室内装饰装修材料壁纸中有害物质限量》、《室内装饰装修材料地毯、地毯衬垫及地毯用胶粘剂中有害物质释放限量》等标准的材料制作家具、进行内装修，根据材料用量及施工方法的不同，室内或家具中游离甲醛、乙醛、氨气、硫化氢、乙酸的浓度仍远高于《民用建筑工程室内环境污染物浓度限量》的要求。
根据室内、车辆或家具中游离甲醛、乙醛、氨气、硫化氢、乙酸等有害气体浓度的高低，挂、贴或铺设相应数量的本发明制备的有害气体捕捉材，可以在24小时内使游离甲醛、乙醛、氨气、硫化氢、乙酸的浓度达到《民用建筑工程室内环境污染物浓度限量》的要求，最长持续捕捉时间可以达到6个月，此时家具或装修材料中的游离甲醛、乙醛、氨气、硫化氢、乙酸已经基本释放完毕，能够彻底清除室内、家具或车辆中有害气体的危害。与目前减轻游离甲醛、乙醛、氨气、硫化氢、乙酸等污染的措施相比，操作简单、成本低、无二次污染、持续时间长、能够彻底根治。
具体实施实方式
实施例1：
在80份去离子水中加入硫酸铵5份、磷酸钛+氧化镁5份、氯化钙5份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例2：
在80份去离子水中加入氨基磺酸铵5份、磷酸钛+氧化锌+氧化钛5份、氯化钙3份、碳酸钙2份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例3：
在80份去离子水中加入己二酸二酰肼5份、磷酸钛+氧化锌+氧化钛+二氧化硅5份、氯化钙4份、碳酸钙1份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例4：
在80份去离子水中加入硝酸铵5份、磷酸钛+氧化铜+二氧化硅5份、氯化钙4份、碳酸钙1份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例5：
在80份去离子水中加入过硫酸铵5份、磷酸锡+氧化镍5份、氯化钙4份、碳酸钙1份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例6：
在80份去离子水中加入硫脲5份、磷酸锡+氧化镍+氧化钛5份、氯化钙4份、碳酸钙1份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例7：
在80份去离子水中加入三聚氰胺5份、磷酸锡+氧化镍+二氧化硅5份、氯化钙4份、碳酸钙1份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例8：
在80份去离子水中加入草酸二酰肼5份、磷酸锡+氧化镍+氧化钛+二氧化硅5份、氯化钙4份、碳酸钙1份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例9：
在80份去离子水中加入丙二酸二酰肼5份、磷酸钛+氧化铜+二氧化硅5份、氯化钙4份、碳酸钙1份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
实施例10：
在80份去离子水中加入丁二酸二酰肼5份、磷酸钛+氧化铜+氧化钛+二氧化硅5份、氯化钙4份、碳酸钙1份、淀粉5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
比较例1：
在90份去离子水中加入丁二酸二酰肼5份、氯化钙5份，充分搅拌使其溶解，将定量为70g/m2的木纹装饰纸在该溶液中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用。
比较例2：
将定量为70g/m2的木纹装饰纸在去离子水中浸渍20秒，取出在100℃的干燥箱中干燥至挥发份含量为6～8％备用
在3L干燥器中放置实施例制备的捕捉纸200cm2，通入已知浓度的甲醛、乙醛、硫化氢、氨气、乙酸气体，密封干燥器，在(20+1)℃下放置24h，测试干燥器中有害气体的浓度，结果见表1。
表1实验结果 单位：mg/m3
| 甲醛 | 乙醛 | 氨气 | 硫化氢 | 乙酸 | |
| 初期浓度 | 20.0 | 20.0 | 20.0 | 20.0 | 20.0 |
| 实施例一 | 0.02 | 0.05 | 0 | 2.1 | 0.35 |
| 实施例二 | 0 | 0.03 | 0 | 1.5 | 0.27 |
| 实施例三 | 0.01 | 0.03 | 0 | 1.7 | 0.36 |
| 实施例四 | 0.05 | 0.06 | 0 | 1.3 | 0.41 |
| 实施例五 | 0.03 | 0.04 | 0 | 1.6 | 0.23 |
| 实施例六 | 0.06 | 0.09 | 0 | 1.8 | 0.45 |
| 实施例七 | 0.03 | 0.05 | 0 | 2.1 | 0.53 |
| 实施例八 | 0.04 | 0.06 | 0 | 2.3 | 0.37 |
| 实施例九 | 0.07 | 0.10 | 0 | 1.6 | 0.51 |
| 实施例十 | 0.02 | 0.02 | 0 | 1.4 | 0.29 |
| 比较例一 | 0.07 | 18.7 | 18.3 | 18.7 | 18.0 |
| 比较例二 | 19.5 | 19.8 | 19.8 | 19.5 | 19.8 |
Claims (6)
1.一种有害气体捕捉材料的制备方法，其特征在于：用下面七种成分作原料：A.各种薄片状材料、或多孔材料构成的载体材料，B.NH4基化合物、或NH2基化合物、或它们任意几种的混合物，C.四价金属的磷酸盐、或二价金属的氧化物、或光催化剂、或它们任意几种的混合物构成的催化剂、D.金属的卤化物、或硝酸盐、或硫酸盐、或亚硫酸盐、或碱、或它们任意几种的混合物，E.碱、或弱酸强碱盐、或它们任意几种的混合物，F.酸碱指示剂、G.胶粘剂；按下面配比配料：以组分A的单位面积为基准，各组分用量，B组分的用量为1～50g/m2，C组分的用量为2～50g/m2，D组分的用量为1～150g/m2，E组分的用量为1～50g/m2，F组分的用量为为0.05～5g/m2，G组分的用量为2～80g/m2；将配好的料加入载体的原料、或浸渍载体、或喷涂载体制成。
2.根据权利要求1所述的一种有害气体捕捉材料的制备方法，其特征在于：载体材料厚度为0.01～10.0mm，定量为1～6000g/m2。
3.根据权利要求1所述的一种有害气体捕捉材料的制备方法，其特征在于：B材料是硫酸铵、硝酸铵、过硫酸铵、硫脲、三聚氰胺、草酸二酰肼、丙二酸二酰肼、丁二酸二酰肼、己二酸二酰肼或其任意几种的混合物。
4.根据权利要求1所述的一种有害气体捕捉材料的制备方法，其特征在于：催化剂C是四价金属的磷酸盐和两价金属的氧化物、或四价金属的磷酸盐和两价金属的氧化物和光催化剂、或四价金属的磷酸盐和两价金属的氧化物和二氧化硅、或四价金属的磷酸盐和两价金属的氧化物和光催化剂和二氧化硅，换算成原子比：
硅∶(四价金属+两价金属)＝1～5∶1
光催化剂∶(四价金属的磷酸盐+两价金属的氧化物)＝0.02～5∶1。
5.根据权利要求1所述的一种有害气体捕捉材料的制备方法，其特征在于：G胶粘剂具体指淀粉胶、蛋白胶、聚醋酸乙烯酯乳液。
6.一种有害气体捕捉材料，其特征在于：它是根据权利要求1所述的制备方法制备而成。
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| CN1387445A (zh) * | 1999-11-30 | 2002-12-25 | 株式会社大鹿 | 醛除臭剂组合物 |
| JP2001179085A (ja) * | 1999-12-28 | 2001-07-03 | Takeda Chem Ind Ltd | 吸着剤およびその製造法 |
| CN1433835A (zh) * | 2002-01-25 | 2003-08-06 | 王栋梁 | 甲醛扑捉剂的制造方法及其产品 |
| CN1386577A (zh) * | 2002-04-08 | 2002-12-25 | 中国科学院山西煤炭化学研究所 | 一种脱醛材料的制备方法 |
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