磁铁矿的制备及其对NOx的分解研究  

Preparation of Magnetite and its Function to Decompose NOx

作　　者：王力军[1] 张春雷[2] 吴通好[2] 

机构地区：[1]渝州大学化学系,重庆630033 [2]吉林大学化学系,吉林130023

出　　处：《环境污染与防治》1997年第6期1-3,共3页Environmental Pollution & Control

摘　　要：用流速200mL／min的空气，在温度为343K～358K和氧化时间10～25h的条件下，2OH－1／SO2-4=1．0的Fe（OH）2悬浮液制得纯相的Fe3O4＋δ（δ≥0），在573K下通H2还原制备氧缺位磁铁矿（Fe3O4－δ≥0）。氧缺位磁铁矿在573K下，分解NOx成N2的活性研究结果表明，氧缺位磁铁矿对NO2的分解能力较高，但对NO的分解不十分有效。The pure magnetite (Fe3O4+δ,0≥0)was obtained from Fe (OH)2 of 2OH-/SO2-4 = 1. 0suspensions in the following conditions:air rate is 200 mL/min,oxidation time 10~25 h and operation temperature 343 K^358 K. Oxygen deficient magnetite was prepared by H2 reduction and its functions to decompose NOx was tested. The results showed that in the temperature of 537 K,the conversion rate of NO2 into N2 with oxygen deficient magnetite was high,but the decomposition of NO was lower.

关 键 词：磁铁矿 分解 氮氧化物 

分 类 号：X756[环境科学与工程—环境工程]