【正文】 可見光條件下攪拌反應(yīng)；（2）；（3）。具有磨口的石英冷阱插入盛有反應(yīng)溶液的硬質(zhì)玻璃反應(yīng)器中(有效體積為500mL)，使反應(yīng)溶液直接接受光輻照。在光照作用下，這種變化有利于吸收光生載流子，提高光催化降解速率。半導(dǎo)體TiO2納米粒子的能帶通常由一個充滿電子的低能帶 (價帶) 和一個空的高能帶 (導(dǎo)帶) 構(gòu)成，低能帶和高能帶由禁帶分開，當(dāng) TiO2 納米粒子受到大于或等于禁帶寬度能量的光子照射后，電子 (e) 受激發(fā)從價帶躍到導(dǎo)帶，同時在價帶上產(chǎn)生空穴 (h+)。另外。其光催化特性集中于紫外波段。它能夠催化偶氮染料類，鹵代烴及有機氯類，苯酚，苯胺等多種有機污水的光降解。s environmental protection. Since the 1980 s, the titanium dioxide catalyzed by light, shows a huge development potential. It can catalysts of azo dye, halogenated hydrocarbon and organic chlorine, phenol, aniline and other photodegradation of organic wastewater. In this paper, the catalytic mechanism of titanium dioxide and catalytic photodissociation of apricot yellow solution (C12H13ClN4), from titanium dioxide dosage, initial substrate concentration, reaction conditions and pH value four aspects prehensive elaboration of tio2 photocatalytic activity.Keys：Titanium dioxide Catalytic photodissociation Photocatalytic activity目錄.............................................................................................................................1.....................................................................................................................3 實驗原理闡述.............................................................................................3 實驗器材與裝置.........................................................................................4 主要儀器及型號..............................................................................4 主要試劑..........................................................................................4 實驗裝置..........................................................................................4 實驗方法.....................................................................................................5 杏黃基本信息確定..........................................................................5 催化劑用量的影響..........................................................................5 初始溶度的影響..............................................................................5 反應(yīng)條件的影響..............................................................................5 初始pH值的影響...........................................................................5 杏黃溶液的標(biāo)準(zhǔn)曲線......................................................................5 分析方法..........................................................................................6...............................................................................................