高壓汞燈可以用作二氧化鈦光催化光源嗎

問(wèn)題描述：不全是，汞燈開(kāi)的時(shí)候你能看見(jiàn)，說(shuō)明里面必然有可見(jiàn)光，一切高于絕對(duì)0度的物體都會(huì)輻射紅外線的。一般來(lái)說(shuō)300w和波長(zhǎng)沒(méi)有必然聯(lián)系，因?yàn)?00w只是一個(gè)輻射功率+系統(tǒng)損耗功率，即使是可見(jiàn)光輻射，也可以達(dá)到300w

回答(1).₅₀₁₀ ₁₃₃₃

回答(2).哥們 估計(jì)不行 二氧化鈦 能夠吸附 汞（原因如下） 你用了汞燈 必然會(huì)有汞被吸附 催化活性應(yīng)該降低 華盛頓大學(xué)的化學(xué)工程教授帕瑞蒂姆·拜爾斯瓦 (Pra timBiswas)發(fā)明了一種除汞新方法 (美國(guó)專利號(hào)為6 2 4 82 17) ,將二氧化鈦?zhàn)鳛槲絼┮霟煹罋庵?,可吸收98?汞 ,然后用常規(guī)的靜電沉降器即可將汞除去。拜爾斯瓦曾試驗(yàn)了幾種含硅、鈣和鈦的吸附劑用于煙道氣中除汞。用模擬煙道氣 (有或沒(méi)有SO2 存在的情況下 )試驗(yàn)這些吸附劑 ,發(fā)現(xiàn)硅基吸附劑無(wú)論在SO2 是否存在的情況下都不捕獲汞 ;氧化鈣能吸附煙道氣中 33?汞 ,但在有SO2 存在時(shí)吸附率大大降低 ;二氧化鈦的吸附效果最好 ,它對(duì)汞的捕獲率高達(dá) 88? 99?捕獲率與…

回答(3).先用紫外燈測(cè)試一下其在紫外光下的光催化性能，效果好的話再用可見(jiàn)光燈照射測(cè)其可見(jiàn)光光催化性能。紫外燈用的是高壓汞燈

回答(4).在光子激發(fā)下，電子被激發(fā)出來(lái)，形成一個(gè)電子和一個(gè)孔穴，孔穴可以捕獲電子，而電子可以給予客體， 從而具有氧化還原作用。 影響因素首先是催化劑的屬性，另外是光強(qiáng)度，光波頻率以及反應(yīng)溫度。

回答(5).發(fā)1篇 氮氟摻雜二氧化鈦光催化微囊藻毒素 （如有需要可以幫翻譯一部分 此類文章在線翻譯一般不準(zhǔn)) 還有部分無(wú)法發(fā)出，把郵箱留下，我發(fā)給你。 題目： Visible light-activated N-F-codoped TiO2 nanoparticles for the photocatalytic degradation of microcystin-LR in water 正文： 1. Introduction The development of nanotechnology for the synthesis of nanomaterials is providing unprecedented opportunities to deal with emerging environmental problems associated with water contamination along with worldwide energy-related concerns [1]. Currently, advanced oxidation technologies (AOTs) and nanotechnologies (AONs) have been extensively investigated for the destruction of toxic and recalcitrant organic compounds and inactivation of microorganisms in water and air [2–12]. Titanium dioxide (TiO2), a well-known semiconductor with photocatalytic properties, is a widely used AON for water and air remediation [6– 10]. It has proven to be highly effective in the nonselective degradation of organic contaminants due to high decomposition and mineralization rates. However, conventional TiO2 requires ultraviolet (UV) radiation (l < 400 nm) to overcome its wide band gap energy (3.2 eV for anatase phase) for photocatalytic activation [4,11]. This is a technological limitation when aiming at implementation of large scale sustainable technologies with renewable energy sources such as solar light, since UV radiation accounts only for 5?f the total solar spectrum compared to the visible region (45?[12,13]. Several attempts have been directed towards the development of modi......

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