CN104676326B - 一种可净化空气的led光触媒灯具 - Google Patents

一种可净化空气的led光触媒灯具 Download PDF

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CN104676326B
CN104676326B CN201510071754.0A CN201510071754A CN104676326B CN 104676326 B CN104676326 B CN 104676326B CN 201510071754 A CN201510071754 A CN 201510071754A CN 104676326 B CN104676326 B CN 104676326B
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刘克
吴世民
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SHENZHEN YOULIDE SCIENCE & TECHNOLOGY CO., LTD.
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    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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Abstract

本发明公开了一种可净化空气的LED光触媒灯具，其特征在于：在所述LED灯具的发光面上涂布一层纳米级的光触媒涂料。按重量百分比计算，该涂料的组分包括：8~12%的纳米TiO2、4~6%的SiO2、4~6%的SnO2、2~4%的TiO2‑Ag复合物、1~3%的粘结剂和70~80%的蒸馏水。其中，纳米TiO2的粒径范围为5~30 nm，受激波长为460 nm，该光触媒纳米涂料无需紫外线的日光照射，用LED灯照射就可实现催化氧化反应，不仅拓宽了光触媒的光响应范围，还具有自清洁和抗菌的功效，起到净化空气的作用。

Description

一种可净化空气的LED光触媒灯具
技术领域
本发明涉及光触媒技术领域，具体涉及一种可净化空气的LED光触媒灯具。
背景技术
光触媒是一种以纳米级TiO2为代表的具有光催化功能的光半导体材料的总称，是当前国际上治理室内环境污染的最理想材料。光触媒在光照作用下，会产生类似光合作用的光催化反应，具有很强的催化降解功能，可将各种有机化合物和部分无机物氧化分解成水和二氧化碳；还能破坏细菌的细胞膜和固化病毒的蛋白质，将细菌或真菌释放出的毒素分解，进行无害化处理，因而具有极强的杀菌、除臭、防污和净化空气功能。
目前的光触媒材料都是利用节能灯/荧光灯中的紫外光谱来激发，由于LED作为节能光源已逐渐取代传统的节能灯，以LED灯来激发光触媒材料成为发展的趋势，但LED灯没有紫外光谱的成份。因此，在普通不产生紫外光的LED灯具照明场合下，无法利用传统的光触媒材料治理环境，要生产可利用光触媒的LED灯具，就必需针对传统的光触媒材料进行改性，拓宽光触媒的光响应范围，使之能适应更多的光源，更好地发挥光催化作用，当前还未有这样的技术披露。
发明内容
本发明的任务是为了解决现有技术存在的上述不足，提供一种经LED照射时光触媒可进行光催化氧化反应的可净化空气的LED光触媒灯具，进而使得该灯具有自清洁和抗菌的功效，起到净化空气的作用。
本发明为实现上述目的所采用的技术方案为：
一种可净化空气的LED光触媒灯具，包括LED光源，其特征在于：在所述LED灯具的发光面上涂布有一层纳米级的光触媒涂料；该纳米级的光触媒涂料按重量百分比计算，其组分包含：
其中：纳米TiO2的受激波长为460nm，在LED灯照射下实现催化氧化反应。
具体的方案包括：
所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO28％、SnO26％、SiO26％、TiO2-Ag4％、粘结剂1％和蒸馏水75％。或者：
所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO210％、SnO25％、SiO25％、TiO2-Ag3％、粘结剂2％和蒸馏水75％。或者：
所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO212％、SnO24％、SiO24％、TiO2-Ag2％、粘结剂3％和蒸馏水75％。或者：
所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO212％、SnO26％、SiO26％、TiO2-Ag4％、粘结剂2％和蒸馏水70％。或者：
所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO28％、SnO24％、SiO24％、TiO2-Ag 2％、粘结剂2％和蒸馏水80％。
所述TiO2的粒径范围为5～30nm。
所述SnO2的粒径范围为10～30nm。
所述TiO2-Ag复合物中Ag的粒径范围为10～30nm。
所述粘结剂为硅胶。
其中：
TiO2的中文名称为：二氧化钛；
SnO2的中文名称为：二氧化锡；
SiO2的中文名称为：二氧化硅；
TiO2-Ag的中文名称为：二氧化钛-银。
本发明具有以下有益效果：
(1)本发明所提供的可净化空气的LED光触媒灯具，其纳米级光触媒涂料中的纳米TiO2的受激波长为460nm，经LED灯照射能够产生带负电的电子和带正电的空穴，形成电子-空穴对，可与吸附在纳米TiO2粒子表面的氧气和水分别形成活性负氧离子和羟基自由基。活性负氧离子和羟基自由基具有超强的氧化能力，可将各种有机化合物和部分无机物氧化分解成水和二氧化碳，从而达到杀菌、除臭、防污和净化空气的功能。
(2)本发明所提供的可净化空气的LED光触媒灯具，其纳米级光触媒涂料通过控制SnO2粒径大小的排列分布，形成超亲水性薄膜，与水的接触角为0～5°，使水滴在玻璃表面形成水膜层，下雨时可以从污染物的根部进行全面的冲洗。同时，超亲水性吸附空气中的水分，可以抑制静电的产生，使灰尘不易附着在玻璃表面，形成自洁薄膜层，使该涂料的防尘效果比传统涂料提高了10000倍。
(3)本发明所提供的可净化空气的LED光触媒灯具，其纳米级光触媒涂料中的TiO2-Ag复合物具有广谱抗菌性，使该纳米级的光触媒涂料几乎不受光源的影响，在暗处也具有明显的抗菌性能。
(4)本发明所提供的可净化空气的LED光触媒灯具，其纳米级光触媒涂料不仅拓宽了光触媒的光响应范围，经LED灯照射时可进行光催化氧化反应，提高了光触媒的催化效能，而且还具有自清洁和抗菌的功效，起到净化空气的作用。
附图说明
图1为本发明的一种LED光触媒灯具的结构示意图。
具体实施方式
下面结合附图及实施例对本发明作进一步地详述：
实施例1：
如图1所示，本发明提供一种可净化空气的LED光触媒灯具，包括LED灯体1和涂布在其上的一层纳米级的光触媒涂料2。
纳米级的光触媒涂料按重量百分比计算，其组分包含：
其中：纳米TiO2的受激波长为460nm，在LED灯照射下实现催化氧化反应。
纳米级的光触媒涂料2优选的组成成分的重量百分比为：纳米TiO210％、SnO25％、SiO25％、TiO2-Ag 3％、粘结剂2％和蒸馏水75％。
纳米TiO2的粒径范围为5～30nm。
SnO2的粒径范围为10～30nm。
TiO2-Ag复合物中Ag的粒径范围为10～30nm。
粘结剂为硅胶。
实施例2：
可用于实施例1中一种可净化空气的LED光触媒灯具的纳米级光触媒涂料，其组成成分的重量百分比为：纳米TiO28％、SnO26％、SiO26％、TiO2-Ag 4％、粘结剂1％和蒸馏水75％。
实施例3：
可用于实施例1中一种可净化空气的LED光触媒灯具的纳米级光触媒涂料，其组成成分的重量百分比为：纳米TiO212％、SnO24％、SiO24％、TiO2-Ag 2％、粘结剂3％和蒸馏水75％。
实施例4：
可用于实施例1中一种可净化空气的LED光触媒灯具的纳米级光触媒涂料，其组成成分的重量百分比为：纳米TiO212％、SnO26％、SiO26％、TiO2-Ag 4％、粘结剂2％和蒸馏水70％。
实施例5：
可用于实施例1中一种可净化空气的LED光触媒灯具的纳米级光触媒涂料，其组成成分的重量百分比为：纳米TiO28％、SnO24％、SiO24％、TiO2-Ag 2％、粘结剂2％和蒸馏水80％。
抗菌性能测试实验，测试结果见下表：
对本发明可净化空气的LED光触媒灯具进行大肠杆菌、金黄色葡萄球菌的抗菌实验测试，结果显示抗菌率可达99.99％。
以上所述的仅是本发明的优选实施例，但是本发明并不限于上述实施方式，所述的LED灯源、灯具类，如灯泡、灯管、吸顶灯、平板灯、面板灯、轨导灯、投射灯、户外泛光灯、路灯、户外投射灯、洗墙灯等，皆包括在本发明之内。在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下做出各种变形和改进，这些都属于本发明的保护范围。

Claims (10)

1.一种可净化空气的LED光触媒灯具，包括LED光源，其特征在于：在所述LED光触媒灯具的发光面上涂布有一层纳米级的光触媒涂料；该纳米级的光触媒涂料按重量百分比计算，其组分包含：
其中：所述SnO2的粒径范围为10～30nm，纳米TiO2的受激波长为460nm，在LED灯照射下实现催化氧化反应。
2.根据权利要求1所述的一种可净化空气的LED光触媒灯具，其特征在于：所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO2 8％、SnO2 6％、SiO2 6％、TiO2-Ag4％、粘结剂1％和蒸馏水75％。
3.根据权利要求1所述的一种可净化空气的LED光触媒灯具，其特征在于：所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO2 10％、SnO2 5％、SiO2 5％、TiO2-Ag3％、粘结剂2％和蒸馏水75％。
4.根据权利要求1所述的一种可净化空气的LED光触媒灯具，其特征在于：所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO2 12％、SnO2 4％、SiO2 4％、TiO2-Ag2％、粘结剂3％和蒸馏水75％。
5.根据权利要求1所述的一种可净化空气的LED光触媒灯具，其特征在于：所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO2 12％、SnO2 6％、SiO2 6％、TiO2-Ag4％、粘结剂2％和蒸馏水70％。
6.根据权利要求1所述的一种可净化空气的LED光触媒灯具，其特征在于：所述纳米级的光触媒涂料的重量百分比组成为：纳米TiO2 8％、SnO2 4％、SiO2 4％、TiO2-Ag2％、粘结剂2％和蒸馏水80％。
7.根据权利要求1-6中任一权利要求所述的可净化空气的LED光触媒灯具，其特征在于：所述TiO2的粒径范围为5～30nm。
8.根据权利要求1-6中任一权利要求所述的可净化空气的LED光触媒灯具，其特征在于：所述TiO2-Ag复合物中Ag的粒径范围为10～30nm。
9.根据权利要求1-6中任一权利要求所述的可净化空气的LED光触媒灯具，其特征在于：所述粘结剂为硅胶。
10.根据权利要求1所述的一种可净化空气的LED光触媒灯具，其特征在于：通过控制SnO2粒径大小的排列分布，形成超亲水性薄膜，与水的接触角为0～5°，使水滴在玻璃表面形成水膜层。
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