Photocatalyst protection
    3.
    发明申请
    Photocatalyst protection 失效
    光催化剂保护

    公开(公告)号:US20060127288A1

    公开(公告)日:2006-06-15

    申请号:US11011730

    申请日:2004-12-14

    IPC分类号: B01J19/12

    摘要: An air treatment system includes a filter and heating element, a plasma device, and a photocatalyst and UV light that cooperate to purify an air stream flowing through the air treatment system and protect the photocatalyst from passivating effects of certain contaminants. The air treatment system operates in two different modes. In the first mode, the air treatment system primarily draws air from and returns air to a space, and the heating element and plasma device are selectively shut off. In the second mode, the air treatment system regenerates the filter using the heating element to selectively heat the filter and release adsorbed contaminants. The plasma device is selectively turned on and chemically transforms the released contaminants into solid contaminant products. The solid contaminant products are deposited on a biased electrode of the plasma device. The UV light is turned off to ensure that the photocatalyst is inoperable during the release and transformation of the contaminants. Once deposited, the essentially immobile and inert solid contaminant products are unlikely to damage the photocatalyst.

    摘要翻译: 空气处理系统包括过滤器和加热元件,等离子体装置和光催化剂和UV光,其协作以净化流过空气处理系统的空气流并保护光催化剂免受某些污染物的钝化作用。 空气处理系统以两种不同的方式运行。 在第一模式中,空气处理系统主要从空气中抽取空气并将空气返回到空间,并且选择性地切断加热元件和等离子体装置。 在第二模式中,空气处理系统使用加热元件再生过滤器,以选择性地加热过滤器并释放吸附的污染物。 选择性地打开等离子体装置,并将释放的污染物化学转化成固体污染物。 固体污染产物沉积在等离子体装置的偏置电极上。 UV灯被关闭,以确保在污染物的释放和转化过程中光催化剂不可操作。 一旦沉积,基本上不可移动和惰性的固体污染物产物不可能损坏光催化剂。

    Reflective lamp to maximize light delivery to a photoactive catalyst
    4.
    发明申请
    Reflective lamp to maximize light delivery to a photoactive catalyst 有权
    反光灯,以最大限度地发光到光活性催化剂

    公开(公告)号:US20050061656A1

    公开(公告)日:2005-03-24

    申请号:US10668523

    申请日:2003-09-23

    摘要: A lamp including a reflective portion is utilized in a fluid purification system to maximize the light delivery to a photocatalytic coating that oxidizes gaseous contaminants that adsorb onto the surface to form carbon dioxide, water, and other substances. An ultraviolet light source positioned proximate to the honeycomb activates the titanium dioxide coating. In one example, the reflective portion is a reflective coating. Light directed out of the non-reflective portion of the lamp travels towards the honeycomb and absorbs onto the photocatalytic coating. Light directed towards the reflective portion on the lamp is reflected off the surface of the reflective portion and passes through the non-reflective portion of the lamp to also absorb onto the photocatalytic coating. The reflective portion reflects light towards the honeycomb that would otherwise be misdirected away from the honeycomb, increasing efficiency of the fluid purification system.

    摘要翻译: 在流体净化系统中使用包括反射部分的灯,以使向光催化涂层的光输送最大化,所述光催化涂层氧化吸附在表面上的气态污染物以形成二氧化碳,水和其它物质。 靠近蜂窝的紫外光源激活二氧化钛涂层。 在一个示例中,反射部分是反射涂层。 从灯的非反射部分引出的光朝向蜂窝体行进并吸收到光催化涂层上。 指向灯上的反射部分的光从反射部分的表面反射并穿过灯的非反射部分,也吸收到光催化涂层上。 反射部分将光朝向蜂窝状物反射,否则其将被错误地偏离蜂窝状,提高了流体净化系统的效率。

    System to enhance the photocatalytic oxidation rate of contaminants through selective desorption of water utilizing microwaves
    5.
    发明申请
    System to enhance the photocatalytic oxidation rate of contaminants through selective desorption of water utilizing microwaves 有权
    利用微波通过选择性解吸水提高污染物的光催化氧化速率的系统

    公开(公告)号:US20050069471A1

    公开(公告)日:2005-03-31

    申请号:US10671046

    申请日:2003-09-25

    摘要: A photocatalytic coating oxidizes volatile organic compounds that adsorb onto the coating into water, carbon dioxide, and other substances. When photons of the ultraviolet light are absorbed by the coating, reactive hydroxyl radicals are formed. When a contaminant is adsorbed onto the coating, the hydroxyl radical oxidizes the contaminant to produce water, carbon dioxide, and other substances. A humidity sensor or a temperature sensor detects the humidity or temperature, respectively, of the air entering the air purification system. Information about the optimal microwave wavelength and intensity for various humidity and temperature levels are stored in a control of a microwave actuator. The microwave actuator determines the optimal wavelength or intensity based on the sensed humidity and temperature level and sends a signal to a magnetron to emit a microwave of the desired wavelength or intensity. The microwaves are only absorbed by the water, desorbing the water from the photocatalytic coating and creating additional photooxidation sites for the contaminants.

    摘要翻译: 光催化涂层将吸附在涂层上的挥发性有机化合物氧化成水,二氧化碳和其他物质。 当紫外光的光子被涂层吸收时,形成反应性羟基自由基。 当污染物被吸附到涂层上时,羟基自由基氧化污染物以产生水,二氧化碳和其它物质。 湿度传感器或温度传感器分别检测进入空气净化系统的空气的湿度或温度。 关于各种湿度和温度水平的最佳微波波长和强度的信息存储在微波致动器的控制中。 微波致动器基于感测的湿度和温度水平确定最佳波长或强度,并将信号发送到磁控管以发射所需波长或强度的微波。 微波仅被水吸收,从光催化涂层中解吸水,并为污染物产生额外的光氧化位点。

    Photocatalytic oxidation of contaminants through selective desorption of water utilizing microwaves
    6.
    发明申请
    Photocatalytic oxidation of contaminants through selective desorption of water utilizing microwaves 审中-公开
    利用微波对水进行选择性解吸,对污染物进行光催化氧化

    公开(公告)号:US20050069464A1

    公开(公告)日:2005-03-31

    申请号:US10671047

    申请日:2003-09-25

    摘要: A photocatalytic coating oxidizes volatile organic compounds that adsorb onto the coating into water, carbon dioxide, and other substances. When photons of the ultraviolet light are absorbed by the coating, reactive hydroxyl radicals are formed. When a contaminant is adsorbed onto the coating, the hydroxyl radical oxidizes the contaminant to produce water, carbon dioxide, and other substances. Humidity has an effect on the photocatalytic performance of the titanium dioxide coating. Water adsorbs strongly on the coating, and water and contaminants compete for adsorption sites on the coating. A magnetron emits microwaves of the desired wavelength. The microwaves are only absorbed by the adsorbed water, desorbing the water from the photocatalytic coating and creating additional photooxidation sites for the contaminants.

    摘要翻译: 光催化涂层将吸附在涂层上的挥发性有机化合物氧化成水,二氧化碳和其他物质。 当紫外光的光子被涂层吸收时,形成反应性羟基自由基。 当污染物被吸附到涂层上时,羟基自由基氧化污染物以产生水,二氧化碳和其它物质。 湿度对二氧化钛涂层的光催化性能有影响。 水强烈地吸附在涂层上,水和污染物竞争涂层上的吸附位点。 磁控管发射所需波长的微波。 微波仅被吸附的水吸收,从光催化涂层中解吸水,并为污染物产生额外的光氧化位点。