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纳米二氧化钛光催化降解空气中甲醛影响因素的研究.pdf

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23 12 实 验 室 研 究 与 探 索 Vol. 23 N o. 12 2004 12 RESEARCH AND EXPLORATION IN LABORATORY Dec . 2004 钱 昱, 李 梅, 路庆华 ( , 200240) : 研究了在自制反应舱中纳米T O2 对室内空气中甲醛 光催化降解反应 影响因素, 比较了载 体对T O2 光催化降解甲醛速率 影响, 发现泡沫镍网镍网最适合作为载体分析了掺杂 影响, 发现 活性炭和纳米掺锑氧化锡(ATO) 粉末 加入能明显提高甲醛光催化降解速率研究了粘结剂对T O2 光 催化作用 影响, 水玻璃 加入能够提高降解速率 : 纳米粒子; 二氧化钛; 甲醛; 光催化 : O643. 3 : A : 2004) Investigation of the Influencing Factors on NanoTiO 2 Photocatalytic Degradation of Formaldehyde in Indoor Air QIAN Yu , LI Mei , L U Qinghua ( School of Chem stry and Chem cal Technology, Shangha J aotong Un v. , Shangha 200240, Ch na) Abstract : The nfluenc ng factors of T O2 on the photocatalyt c degradat on of formaldehyde were d scussed by us ng selfmade react on cab n. D fferent carr ers were compared and foam ng n ckel, as the best carr er, could accelerate the photocatalyt c degradat on of formaldehyde. Effects of the adulterat on were analyzed and the results show that the photocatalyt c degradat on rates of formaldehyde ncrease obv ously when dop ng act ve carbon and ant mony t n ox de ( ATO) nanopowder nto T O2 photocatalyst . The nfluence of b nders on the rate of photocatalyt c degradat on of formaldehyde was evaluated and Na S O 2 3 shows an obv ous accelerat ve effect. Key words: nanopart cles; t tan um d ox de; formaldehyde; photocatalyst [ 1] , 1 , , 80% O2 , , ,
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