Preparation and activity of Mo-Mn-Al-O catalyst for catalytic wet air oxidation under room conditions

许银

doi:10.3969/j.issn.0438-1157.2012.05.014

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Preparation and activity of Mo-Mn-Al-O catalyst for catalytic wet air oxidation under room conditions

更新时间：2025-12-10

- Preparation and activity of Mo-Mn-Al-O catalyst for catalytic wet air oxidation under room conditions
- CIESC Journal Issue 5, Pages: 1415-1421(2012)
- 作者机构：
  
  北京林业大学北京市水体污染源控制技术重点实验室
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.05.014
  CLC： 505
- Online First：05 May 2012，
  
  Published：05 May 2012
- 稿件说明：
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许银. Preparation and activity of Mo-Mn-Al-O catalyst for catalytic wet air oxidation under room conditions[J]. CIESC Journal, 2012, (5): 1415-1421.
DOI：

许银. Preparation and activity of Mo-Mn-Al-O catalyst for catalytic wet air oxidation under room conditions[J]. CIESC Journal, 2012, (5): 1415-1421. DOI： 10.3969/j.issn.0438-1157.2012.05.014.

摘要

以Mn-Al-O为载体，钼酸盐为活性成分的前驱体，采用共沉淀-浸渍法制备出Mo-Mn-Al-O催化剂，使用ICP-OES、BET、XRD和XPS方法对其进行表征，研究其在常温常压下催化湿式氧化阳离子型染料废水的催化活性。实验结果表明，Mo的浸渍浓度为1.5 mol·L-1、浸渍温度为55℃、焙烧时间为3 h和焙烧温度为400℃下制备出的Mo-Mn-Al-O催化剂对阳离子红GTL、阳离子红X-GRL、阳离子黄X-GL和阳离子蓝X-BL都有较好的催化性能。特别是，当催化剂投加量为2.72 g·L-1时，反应1 h后对阳离子红GTL的脱色率和TOC去除率分别达到74.8%和64.5%。

Abstract

To overcome some drawbacks of catalytic wet air oxidation（CWAO)

higher temperature pressure is required. Mo-Mn-Al-O catalyst was prepared by co-precipitation and impregnation with Mn-Al-O as carrier and molybdate as precursor

and its catalytic activity for degradation of cationic dye wastewater under room temperature and atmospheric pressure was investigated.ICP-OES

BET

XRD and XPS were employed to characterize the Mo-Mn-Al-O catalyst.The results showed that the optimal preparation parameters were as follow：salts concentration was 1.5 mol·L-1

dipping temperature 55℃

calcination time and temperature 3 h and 400℃ respectively.Furthermore

the degradation performance obtained for cationic dyes in wastewater cationic red GTL

cationic red X-GRL

cationic yellow X-GL and cationic blue X-BL showed that the catalytic activity of Mo-Mn-Al-O catalyst was good when amount of Mo-Mn-Al-O catalyst was 2.72 g·L-1

it can be removed 74.8% of cationic red GTL and 64.5% of TOC after 1 h oxidation.

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