Lyumeng Ye , Wenjing Dai , Peng Lu , Jianhang Huang , Xianhui Yan , Changcheng Sun , Kuang He , Mingyang Zhang , Haibao Huang
{"title":"一步合成源自污泥的氧化锰催化剂，用于高效去除工业烟气中的气态臭氧","authors":"Lyumeng Ye , Wenjing Dai , Peng Lu , Jianhang Huang , Xianhui Yan , Changcheng Sun , Kuang He , Mingyang Zhang , Haibao Huang","doi":"10.1016/j.apcatb.2024.123696","DOIUrl":null,"url":null,"abstract":"<div><p>A series of sludge-derived MnO<sub>x</sub> catalysts were successfully obtained by a one-step sludge disintegration process using KMnO<sub>4</sub>. The obtained S-MnO<sub>x</sub>-1.2 catalyst exhibited excellent activity and superior water resistance under industrial flue gas conditions (5 vol% H<sub>2</sub>O, 40–80 ℃, 300,000–600,000 mL/(g·h) of GHSV). β‐MnOOH was the predominant component generated on the sludge surface by a redox reaction between KMnO<sub>4</sub><span> and organic matter. The superior ozone decomposition performance was mainly ascribed to its large surface area, plentiful oxygen vacancies and interlayer hydroxyl groups. There were two types of surface oxygen vacancies, denoted as ozone-friendly and hydrophilic oxygen vacancies, participated in the ozone elimination process. Surface hydroxyl groups physically adsorbed abundant water molecules and hindered the chemisorption of water on ozone-friendly oxygen vacancies, thereby increasing the water resistance of the catalyst. The present work produced a potential catalyst in favor of ozone elimination, and promoted the high value-added utilization of waste sludge.</span></p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"345 ","pages":"Article 123696"},"PeriodicalIF":20.2000,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"One-step synthesis of sludge-derived MnOx catalysts for highly efficient removal of gaseous ozone from industrial flue gas\",\"authors\":\"Lyumeng Ye , Wenjing Dai , Peng Lu , Jianhang Huang , Xianhui Yan , Changcheng Sun , Kuang He , Mingyang Zhang , Haibao Huang\",\"doi\":\"10.1016/j.apcatb.2024.123696\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A series of sludge-derived MnO<sub>x</sub> catalysts were successfully obtained by a one-step sludge disintegration process using KMnO<sub>4</sub>. The obtained S-MnO<sub>x</sub>-1.2 catalyst exhibited excellent activity and superior water resistance under industrial flue gas conditions (5 vol% H<sub>2</sub>O, 40–80 ℃, 300,000–600,000 mL/(g·h) of GHSV). β‐MnOOH was the predominant component generated on the sludge surface by a redox reaction between KMnO<sub>4</sub><span> and organic matter. The superior ozone decomposition performance was mainly ascribed to its large surface area, plentiful oxygen vacancies and interlayer hydroxyl groups. There were two types of surface oxygen vacancies, denoted as ozone-friendly and hydrophilic oxygen vacancies, participated in the ozone elimination process. Surface hydroxyl groups physically adsorbed abundant water molecules and hindered the chemisorption of water on ozone-friendly oxygen vacancies, thereby increasing the water resistance of the catalyst. The present work produced a potential catalyst in favor of ozone elimination, and promoted the high value-added utilization of waste sludge.</span></p></div>\",\"PeriodicalId\":244,\"journal\":{\"name\":\"Applied Catalysis B: Environmental\",\"volume\":\"345 \",\"pages\":\"Article 123696\"},\"PeriodicalIF\":20.2000,\"publicationDate\":\"2024-01-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Catalysis B: Environmental\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0926337324000079\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis B: Environmental","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926337324000079","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
One-step synthesis of sludge-derived MnOx catalysts for highly efficient removal of gaseous ozone from industrial flue gas
A series of sludge-derived MnOx catalysts were successfully obtained by a one-step sludge disintegration process using KMnO4. The obtained S-MnOx-1.2 catalyst exhibited excellent activity and superior water resistance under industrial flue gas conditions (5 vol% H2O, 40–80 ℃, 300,000–600,000 mL/(g·h) of GHSV). β‐MnOOH was the predominant component generated on the sludge surface by a redox reaction between KMnO4 and organic matter. The superior ozone decomposition performance was mainly ascribed to its large surface area, plentiful oxygen vacancies and interlayer hydroxyl groups. There were two types of surface oxygen vacancies, denoted as ozone-friendly and hydrophilic oxygen vacancies, participated in the ozone elimination process. Surface hydroxyl groups physically adsorbed abundant water molecules and hindered the chemisorption of water on ozone-friendly oxygen vacancies, thereby increasing the water resistance of the catalyst. The present work produced a potential catalyst in favor of ozone elimination, and promoted the high value-added utilization of waste sludge.
期刊介绍：
Applied Catalysis B: Environment and Energy (formerly Applied Catalysis B: Environmental) is a journal that focuses on the transition towards cleaner and more sustainable energy sources. The journal's publications cover a wide range of topics, including:
1.Catalytic elimination of environmental pollutants such as nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated and other organic compounds, and soot emitted from stationary or mobile sources.
2.Basic understanding of catalysts used in environmental pollution abatement, particularly in industrial processes.
3.All aspects of preparation, characterization, activation, deactivation, and regeneration of novel and commercially applicable environmental catalysts.
4.New catalytic routes and processes for the production of clean energy, such as hydrogen generation via catalytic fuel processing, and new catalysts and electrocatalysts for fuel cells.
5.Catalytic reactions that convert wastes into useful products.
6.Clean manufacturing techniques that replace toxic chemicals with environmentally friendly catalysts.
7.Scientific aspects of photocatalytic processes and a basic understanding of photocatalysts as applied to environmental problems.
8.New catalytic combustion technologies and catalysts.
9.New catalytic non-enzymatic transformations of biomass components.
The journal is abstracted and indexed in API Abstracts, Research Alert, Chemical Abstracts, Web of Science, Theoretical Chemical Engineering Abstracts, Engineering, Technology & Applied Sciences, and others.
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