室温下活性炭载纳米铂催化剂对空气中甲醛的去除效果  

Catalytic oxidation of formaldehyde over activated carbon-supported platinum catalysts at room temperature

作　　者：黄海保[1,2] 张路[1] 梁耀彰[2] 叶信国[1] 

机构地区：[1]中山大学环境科学与工程学院,广东广州510275 [2]香港大学机械工程系

出　　处：《环境与健康杂志》2013年第1期56-58,共3页Journal of Environment and Health

基　　金：香港大学基金(200907176159);国家自然科学基金(51208207);广东省环境污染控制与修复技术重点实验室开放研究基金(2013K0001)

摘　　要：目的探讨活性炭载纳米铂催化剂对空气中甲醛的去除效果。方法采用硼氢化钠液相还原法制备活性炭载纳米铂催化剂,观察不同载铂量(0.1%,0.5%和1%)对甲醛去除率的影响。结果透射电镜观察显示,活性炭载铂为还原态纳米粒子(d≈18 nm),铂负载量为0.5%时,反应5 h甲醛去除率为98.2%。结论本研究制备的活性炭载纳米铂催化剂可有效去除空气中甲醛。Objective To explore catalytic oxidation of gaseous formaldehyde over activated carbon- supported platinum catalysts （Pt/AC） at room temperature. Methods Pt/AC catalysts were prepared by liquid reduction method using NaBH4 as the reducing agent. The effect of Pt loading （0.1% ,0.5% and 1% ） on formaldehyde removal was investigated. Results Reduc, ed Pt nanoparticles of 18 nm diameter could be observed by transmission electron microscope, Formaldehyde removal efficiency was 98.2% in case of 0.5% Pt loading after reaction for 5 h. Conclusion The prepared Pt/AC catalysts in this study can be used for the efficient removal of formaldehyde in air,

关 键 词：空气污染 室内 活性炭载铂催化剂 甲醛 室温 

分 类 号：R122.2[医药卫生—环境卫生学]