玻璃弹簧负载TiO<sub>2</sub>对室内空气污染物的降解

陈连生; 丁震; 陈晓东; 林萍

doi:10.11847/zgggws2005-21-09-41

玻璃弹簧负载TiO₂对室内空气污染物的降解

Study on TiO₂ loaded on glass spring to eliminate main contaminant in indoor air

摘要

摘要:
目的研究玻璃弹簧表面负载不同纳米二氧化钛(TiO₂)光催化剂对室内空气主要污染物的降解.
方法用溶胶-凝胶法制备未掺杂和3种掺杂金属离子的TiO₂光催化剂, 在玻璃弹簧填料上浸渍负载制备的光催化剂.用自制的光催化反应器考察其对室内空气主要污染物甲醛和挥发性有机物(VOCs)的降解作用.
结果未掺杂和掺银TiO₂对甲醛的降解率基本相同, 掺镧TiO₂对甲醛降解率最高, 掺铁TiO₂对甲醛的降解率最低; 未掺杂、掺银和掺镧TiO₂对VOCs的降解率基本相同, 掺铁TiO₂对VOCs的降解率较低.
结论掺杂金属离子对于甲醛的降解效果较为明显, 对VOCs的降解效果不明显.

Abstract:
Objective To resear ch the deg radation of TiO₂ loaded on glass spring to eliminate the main contaminatnt in indoor air.
Methods TiO₂ and Threde metal ion doped TiO₂ photocatalysts were prepared on glass spring by sol gel process ing.Ahomemade photocataly tic reactor was used to evaluate the degraded effect of the TiO₂ photocatalysts on the main contaminant formaldehyde and VOCs in indoor air.
Results The degraded rate of no doped and silver doped TiO₂ toformalde hyde was basically same; lanthanum doped TiO₂ was significantly improv ed; iron doped TiO₂ was the low est.The degr aded rate of no doped, silv er doped and lanthanum doped TiO₂ to VOCs was basically same, iron doped TiO₂ was lower.
Conclusion The degr aded effect of methalion doped TiO₂ toformaldehyde was prominent, but it was inapparent to VOCs.

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玻璃弹簧负载TiO2对室内空气污染物的降解

Study on TiO2 loaded on glass spring to eliminate main contaminant in indoor air

玻璃弹簧负载TiO₂对室内空气污染物的降解

Study on TiO₂ loaded on glass spring to eliminate main contaminant in indoor air