Heat treatment of MnCO3: An easy way to obtain efficient and stable MnO2 for humid O3 decomposition

被引:68
作者
Liu, Yang [1 ,2 ]
Zhang, Pengyi [2 ,3 ]
Zhan, Jingjing [1 ]
Liu, Lifen [1 ]
机构
[1] Dalian Univ Technol, Sch Food & Environm, Key Lab Ind Ecol & Environm Engn, Minist Educ, Panjin 124221, Peoples R China
[2] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China
[3] Beijing Key Lab Indoor Air Qual Evaluat & Control, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
Catalytic removal; Ozone; Manganese carbonate; Heat treatment; Water resistance; PHASE OZONE DECOMPOSITION; CATALYTIC DECOMPOSITION; CO OXIDATION; OXIDE CATALYSTS; GASEOUS OZONE; MANGANESE DIOXIDES; FACILE SYNTHESIS; TEMPERATURE; ZEOLITE; GAS;
D O I
10.1016/j.apsusc.2018.08.226
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The competitive water adsorption in the practical environment usually causes severe deactivation of the O-3 decomposition catalysts. In this study, MnCO3 was used as precursor to prepare efficient and stable MnO2 catalyst for gaseous O-3 decomposition in humid stream. The sample S-300, prepared by calcining MnCO3 at 300 degrees C for 6 h, exhibited 63% (80%) of removal efficiency for 120 (43) ppm of O-3 under a high space velocity of 600 L g(-1) h(-1) and 50% (40%) of relative humidity at 25 degrees C, which is superior to the commercial O-3 scrubber (oxide compound of Cu and Mn) and alpha-MnO2. However, even lower or higher treatment temperature did not further promote humid O-3 decomposition. Thorough characterizations, especially by the temperature programmed and in situ DRIFTs experiments, demonstrate that the large amount of active oxygen vacancies and strong Lewis-acid sites together with the easy recovery of the occupied oxygen vacancies and weak interaction with water molecules accounted for the excellent O-3 decomposition activity in humid stream. Besides, the developed pores by thermal decomposition of MnCO3 might also facilitate O-3 removal. This study provides an easy and rational design of affordable and efficient catalysts for environmental application.
引用
收藏
页码:374 / 385
页数:12
相关论文
共 47 条
[31]   Ozone decomposition, benzene and CO oxidation over NiMnO3-ilmenite and NiMn2O4-spinel catalysts [J].
Mehandjiev, D ;
Naydenov, A ;
Ivanov, G .
APPLIED CATALYSIS A-GENERAL, 2001, 206 (01) :13-18
[32]   Decomposition of ozone on Ag/SiO2 catalyst for abatement of waste gases emissions [J].
Naydenov, A. ;
Konova, P. ;
Nikolov, Pen. ;
Klingstedt, F. ;
Kumar, N. ;
Kovacheva, D. ;
Stefanov, P. ;
Stoyanova, R. ;
Mehandjiev, D. .
CATALYSIS TODAY, 2008, 137 (2-4) :471-474
[33]   OZONE DECOMPOSITION AND CO OXIDATION ON CEO2 [J].
NAYDENOV, A ;
STOYANOVA, R ;
MEHANDJIEV, D .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 1995, 98 (01) :9-14
[34]   Ozone decomposition on Ag/SiO2 and Ag/clinoptilolite catalysts at ambient temperature [J].
Nikolov, Penko ;
Genov, Krassimir ;
Konova, Petya ;
Milenova, Katya ;
Batakliev, Todor ;
Georgiev, Vladimir ;
Kumar, Narendra ;
Sarker, Dipak K. ;
Pishev, Dimitar ;
Rakovsky, Slavcho .
JOURNAL OF HAZARDOUS MATERIALS, 2010, 184 (1-3) :16-19
[35]   Climate controls on air quality in the Northeastern US: An examination of summertime ozone statistics during 1993-2012 [J].
Oswald, Evan M. ;
Dupigny-Giroux, Lesley-Ann ;
Leibensperger, Eric M. ;
Poirot, Rich ;
Merrell, Jeff .
ATMOSPHERIC ENVIRONMENT, 2015, 112 :278-288
[36]   The impact of synoptic weather on UK surface ozone and implications for premature mortality [J].
Pope, R. J. ;
Butt, E. W. ;
Chipperfield, M. P. ;
Doherty, R. M. ;
Fenech, S. ;
Schmidt, A. ;
Arnold, S. R. ;
Savage, N. H. .
ENVIRONMENTAL RESEARCH LETTERS, 2016, 11 (12)
[37]   Ant-cave structured MnCO3/Mn3O4 microcubes by biopolymer-assisted facile synthesis for high-performance pseudocapacitors [J].
Sekhar, S. Chandra ;
Nagaraju, Goli ;
Yu, Jae Su .
APPLIED SURFACE SCIENCE, 2018, 435 :398-405
[38]   Alumina-supported nickel oxide for ozone decomposition and catalytic ozonation of CO and VOCs [J].
Stoyanova, M. ;
Konova, P. ;
Nikolov, P. ;
Naydenov, A. ;
Christoskova, St. ;
Mehandjiev, D. .
CHEMICAL ENGINEERING JOURNAL, 2006, 122 (1-2) :41-46
[39]   Dynamic behaviour of activated carbon catalysts during ozone decomposition at room temperature [J].
Subrahmanyam, C ;
Bulushev, DA ;
Kiwi-Minsker, L .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 61 (1-2) :98-106
[40]   Effect of zeolite on the activity of Ru/MnCO3 catalysts for Fischer-Tropsch reaction [J].
Takahara, Isao ;
Murata, Kazuhisa ;
Sato, Kazuhito ;
Inaba, Megumu ;
Liu, Yanyong .
APPLIED CATALYSIS A-GENERAL, 2014, 482 :205-213