CN106215363A - 光触媒在合成材料跑道面层有害物质去除中的应用 - Google Patents
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Abstract
本发明涉及光触媒在合成材料跑道面层有害物质去除中的应用。具体方法为:在40℃以下的环境中,每平方米合成材料跑道面层上喷洒20‑200ml光触媒,喷洒2‑4次,每次反应时间为3‑7天;上述光触媒由以下重量份的组分组成:纳米金属氧化物0.3‑2份、离子溶液0.1‑3份和软水95‑98份;其中,纳米金属氧化物的粒径为3‑30nm。本发明首次开创性地将光触媒产品应用于合成材料跑道面层有害物质的去除中,方法简单,时间短,分解彻底,去除效果好,成本低廉,无二次污染,是一种非常有用且适于广泛推广的方法,便于工业化生产。
Description
技术领域
本发明具体涉及光触媒在合成材料跑道面层有害物质去除中的应用。
背景技术
光触媒是一种纳米级的金属氧化物材料,将它涂布于基材表面,干燥后形成薄膜,在光的照射下,可生成活性氧种(·O2 -、·O-、·OH、H2O2及·HO2等),具有很强的光氧化还原功能,可氧化分解各种有机化合物和部分无机物,能破坏细菌的细胞膜和固化病毒的蛋白质,因而具有极强的杀菌、除臭、防污自洁和净化空气的功能。
近年来,常有新闻曝出:多地学校塑胶跑道有害物质超标,导致学生出现流鼻血、头晕、咳嗽、起红疹等身体异常症状,这些“毒跑道”严重损害了青少年学生的身体健康;同时,塑胶跑道还常广泛应用于各体育训练及比赛场地、各基层社区便民活动中心,“毒跑道”也已成为桎梏我国体育事业健康蓬勃发展和影响国民健康素质提升的隐形杀手。尽管各地各部门均采取了不少措施,包括铲除毒跑道,铺设草地等方法,这些方法虽然能起到一定的作用,但是成本高,代价大,工期长,实施起来有很大的难度,因此,目前亟需一种能够有效去除塑胶跑道有害物质的方法。
发明内容
针对于现有技术中存在的上述问题,本发明提供了一种光触媒在合成材料跑道面层有害物质去除中的应用的方法,有效地解决了现有技术中塑胶跑道有害物质超标严重危害国民健康的问题。
为了实现上述目的,本发明采用的技术方案为:
光触媒在合成材料跑道面层有害物质去除中的应用。
在40℃以下的环境中,于每平方米合成材料跑道面层上喷洒光触媒20-200ml,喷洒2-4次,每次反应时间为3-7天。
优选地,于每平方米合成材料跑道面层上喷洒光触媒100-150ml,喷洒2次,每次反应时间为5天。
所述光触媒由以下重量份的组分组成:
纳米金属氧化物0.3-2份、离子溶液0.1-3份和软水95-98份;其中,纳米金属氧化物的粒径为3-30nm。
优选地,所述光触媒还包括稀土元素1-3份。
优选地,所述稀土元素为镧、铈、铒、钕及钇中的至少一种。
优选地,所述纳米金属氧化物为纳米二氧化钛、纳米氧化钨及纳米氧化锌中的至少一种;所述纳米金属氧化物的粒径为3-20nm。
优选地,所述纳米金属氧化物为纳米二氧化钛,纳米二氧化钛的粒径为3-15nm。
优选地,所述离子溶液为银离子溶液、铜离子溶液、铁离子溶液及锌离子溶液中的至少一种。
优选地,所述离子溶液为银离子溶液。
优选地,所述光触媒的制备方法为:
按照配方比例称取纳米金属氧化物、离子溶液和软水,搅拌,使上述物料混合均匀,制得具有高效光催化去除合成材料跑道面层有害物质的光触媒。
本发明的有益效果为:
1)本发明首次开创性地将光触媒产品应用于合成材料跑道面层有害物质的去除中,方法简单,时间短,分解彻底,去除效果好,成本低廉,无二次污染,是一种非常有用且适于广泛推广的方法,有利于工业化生产。
2)本发明的有毒有害物质去除过程中所采用的光触媒产品是采用特定含量的组分制备而成,该产品中没有任何乳化剂、分散剂及悬浮剂的加入,在使用过程中,纳米金属氧化物呈球状均匀地悬浮分散在水中,比表面积增大,大大增加了与有害物质的接触面积,活性增加,并且不会产生任何沉淀,能够有效地去除合成材料跑道面层中的有机污染物及细菌病毒的同时也不会破坏跑道面层中的有效成分,是一种专门针对于合成材料跑道面层有害物质及细菌病毒去除的产品,具有巨大的应用价值。
3)本发明的光触媒产品通过在配方中加入特定含量的离子溶液和稀土元素,该离子掺杂技术和稀土改性技术的运用可提高催化剂吸收长波光子能量的能力,使得波长范围扩大,紫外光变成可见光,大大增强光的强度,从而增大光触媒的催化活性,更有效地去除合成材料跑道面层中的有毒有害物质。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合本发明具体实施例对本发明技术方案进行清楚、完整地描述。
实施例1
以成都高新区实验小学运动场的塑胶跑道为例,采用光触媒对其塑胶跑道面层进行处理的具体过程为:
在35℃时,在每平方米塑胶跑道面层上喷洒光触媒产品100ml,反应5天后,再按照同样的方法喷洒光触媒产品,再反应5天,得到处理后的塑胶跑道面层;上述光触媒产品喷洒在塑胶跑道面层上之后,光触媒在光的照射下,产生出氧化能力极强的自由氢氧基和活性氧,把塑胶跑道上层的苯、甲苯、二甲苯、甲苯二异氰酸酯以及3,3'-二氯-4,4'-二氨基二苯基甲烷(MOCA)等有机污染物分解成无污染的水和二氧化碳,同时还能够有效地去除塑胶跑道面层中的菌落,除菌率达到99%以上,从而将“毒跑道”变成各项指标符合并且远远优于国家标准的合格跑道。
其中,本方法中所采用的光触媒由纳米二氧化钛0.3份、银离子溶液3份和软水96.7份组成;其中,纳米二氧化钛的粒径为5nm。
上述光触媒产品的制备方法为:
按照配方比例称取纳米二氧化钛、银离子溶液和软水,搅拌,使上述物料混合均匀,制得具有高效光催化去除合成材料跑道面层有害物质功能的光触媒产品。
实施例2
以绿舟紫薇幼儿园的塑胶跑道为例,采用光触媒对其塑胶跑道面层进行处理的具体过程为:
在30℃时,在每平方米合成材料跑道面层上喷洒光触媒产品200ml,反应7天后,再按照同样的方法喷洒光触媒产品3次,每次反应7天,得到处理后的塑胶跑道面层;
其中,本方法中所采用的光触媒产品由纳米氧化锌2份、银离子溶液2份、铜离子溶液1份和软水95份组成;其中,纳米氧化锌的粒径为8nm。
上述光触媒产品的制备方法为:
按照配方比例称取纳米氧化锌、银离子溶液、铜离子溶液和软水,搅拌,使上述物料混合均匀,制得具有高效光催化去除合成材料跑道面层有害物质功能的光触媒产品。
实施例3
光触媒在合成材料跑道面层有害物质去除中的应用的方法为:
在30℃时,在每平方米合成材料跑道面层上喷洒光触媒产品150ml,反应3天后,再按照同样的方法喷洒光触媒产品3次,每次反应5天,得到处理后的合成材料跑道面层;
其中,本方法中所采用的光触媒产品由纳米氧化钨1份、铜离子溶液2份、稀土元素镧2份和软水95份组成;其中,纳米氧化钨的粒径为30nm。
上述光触媒产品的制备方法为:
按照配方比例称取纳米氧化钨、铜离子溶液、稀土元素镧和软水,搅拌,使上述物料混合均匀,制得具有高效光催化去除合成材料跑道面层有害物质功能的光触媒产品。
实施例4
光触媒在合成材料跑道面层有害物质去除中的应用的方法为:
在30℃时,在每平方米合成材料跑道面层上喷洒光触媒产品20ml,反应3天后,再按照同样的方法喷洒光触媒产品2次,每次反应7天,得到处理后的合成材料跑道面层;
其中,本方法中所采用的光触媒产品由纳米二氧化钛0.8份、纳米氧化锌0.5份、银离子溶液0.1份、稀土元素铈3份和软水95.6份组成;其中,纳米二氧化钛的粒径为15nm,纳米氧化锌的粒径为3nm。
上述光触媒产品的制备方法为:
按照配方比例称取纳米二氧化钛、纳米氧化锌、银离子溶液、稀土元素铈和软水,搅拌,使上述物料混合均匀,制得具有高效光催化去除合成材料跑道面层有害物质功能的光触媒产品。
实施例5
光触媒在合成材料跑道面层有害物质去除中的应用的方法为:
在40℃时,在每平方米合成材料跑道面层上喷洒光触媒产品60ml,反应6天后,再按照同样的方法喷洒光触媒产品1次,再反应5天,得到处理后的合成材料跑道面层;
其中,本方法中所采用的光触媒产品由纳米二氧化钛1.5份、铁离子溶液0.5份、稀土元素钇1份和软水97份组成;其中,纳米二氧化钛的粒径为20nm。
上述光触媒产品的制备方法为:
按照配方比例称取纳米二氧化钛、铁离子溶液、稀土元素钇和软水,搅拌,使上述物料混合均匀,制得具有高效光催化去除合成材料跑道面层有害物质功能的光触媒产品。
试验例
取采用实施例1、实施例2的方法进行处理后得到的合成材料跑道面层(分别标记为1#和2#),并送至深圳市计量质量检测研究院,依据GB/T14833-2011《合成材料跑道面层》标准方法对跑道面层的有害物质指标进行检测,并与未进行后处理技术的塑胶跑道面层的有害物质性能指标进行对比,结果如下表1:
表1合成材料跑道面层有害物质性能指标检测
未检出:含量低于方法检出限;
从以上实验数据可以看出,未采用本发明方法处理过的塑胶跑道的有机污染物含量最高可超标20倍,危害极大,而采用本发明的光触媒产品对合成材料跑道面层进行处理后,有机污染物含量大大降低,基本都处于未检出状态,远远低于国家标准,并且除菌率达到99%以上,符合合成材料跑道面层的使用要求,安全性得到大大提高。
Claims (11)
1.光触媒在合成材料跑道面层有害物质去除中的应用。
2.根据权利要求1所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:
在40℃以下的环境中,于每平方米合成材料跑道面层上喷洒光触媒20-200ml,喷洒2-4次,每次反应时间为3-7天。
3.根据权利要求2所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:
于每平方米合成材料跑道面层上喷洒光触媒100-150ml,喷洒2次,每次反应时间为5天。
4.根据权利要求1至3任一项所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:
所述光触媒由以下重量份的组分组成:
纳米金属氧化物0.3-2份、离子溶液0.1-3份和软水95-98份;其中,纳米金属氧化物的粒径为3-30nm。
5.根据权利要求4所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:
所述光触媒还包括稀土元素1-3份。
6.根据权利要求5所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:所述稀土元素为镧、铈、铒、钕及钇中的至少一种。
7.根据权利要求4所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:
所述纳米金属氧化物为纳米二氧化钛、纳米氧化钨及纳米氧化锌中的至少一种;所述纳米金属氧化物的粒径为3-20nm。
8.根据权利要求7所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:所述纳米金属氧化物为纳米二氧化钛,纳米二氧化钛的粒径为3-15nm。
9.根据权利要求4所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:
所述离子溶液为银离子溶液、铜离子溶液、铁离子溶液及锌离子溶液中的至少一种。
10.根据权利要求9所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:所述离子溶液为银离子溶液。
11.根据权利要求4所述的光触媒在合成材料跑道面层有害物质去除中的应用,其特征是:所述光触媒的制备方法为:
按照配方比例称取纳米金属氧化物、离子溶液和软水,搅拌,使上述物料混合均匀,制得具有高效光催化去除合成材料跑道面层有害物质的光触媒。
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