Preparation of hybrid manganese dioxide aerogel and its application in ammonia adsorption
ZHI Jian-hui1, SHI Ze-peng1, SUN Xiao-qian1, CHEN Ting1, GENG Hong2
1. College of Environment and Resources, Shanxi University, Taiyuan 030006, China; 2. Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
Abstract：Pure manganese dioxide aerogel was synthesized by one-step reduction method and ice template method. Cellulose nanofibers (CNF) were used to hybridise and enhance the mechanical properties of pure manganese dioxide aerogel materials. Through characterization techniques, the formation mechanism and microscopic mechanism of the hybrid aerogel were explored. The adsorption effect of hybrid aerogel on NH3 was analyzed. Inside the material, CNFs acted as skeleton to disperse MnO2 nanoparticles, while MnO2 and hydroxyl groups on CNFs surface were combined by forming hydrogen bonds, which effectively improved the mechanical strength of the material. It's specific surface area was 56.50cm2/g, and it's average pore diameter was 9.32nm. The adsorption of NH3 was the combined action of physical adsorption and chemical adsorption. NH3 molecules entered the aerogel pores by van der Waals forces, and were absorbed by the adsorption sites and retained in the interior of the material. When the ambient temperature was 15℃ and the relative humidity was 50%, the adsorption effect of the hybrid aerogel on 10x10-6 NH3 for 6h was 99.7%.
刘湘雪,蒲维维,马志强,等.北京地区大气氨时空变化特征 [J]. 中国环境科学, 2021,41(8):3473-3483. Liu X X, Pu W W, Ma Z Q, et al. Study on the temporal and spatial variation of atmospheric ammonia in Beijing [J]. China Environmental Science, 2021,41(8):3473-3483.
[2]
Zhao M J, Wang S X, Tan J H, et al. Variation of urban atmospheric ammonia pollution and its relation with PM2.5 chemical property in winter of Beijing, China [J]. Aerosol and Air Quality Research, 2016,16:1378-1389.
[3]
Zhao L Y, Hadlocon L J, Manuzon R B, et al. Ammonia concentrations and emission rates at a commercial poultry manure composting facility [J]. Biosystems Engineering, 2016,150(2016):69-78.
[4]
陈沛坤,张袁斌,崔希利,等.氨气深度脱除材料与技术研究进展 [J]. 化工进展, 2021,40(7):3957-3975. Chen P K, Zhang Y B, Cui X L, et al. Progress in materials and technologies for deep removal of ammonia gas [J]. Chemical Industry and Engineering Progress, 2021,40(7):3957-3975.
[5]
王均利,曾少娟,陈 能,等.氨气吸附材料的研究进展 [J]. 过程工程学报, 2019,19(1):14-24. Wang J L, Zeng S J, Chen N, et al. Research progress of ammonia adsorption materials [J]. The Chinese Journal of Process Engineering, 2019,19(1):14-24.
[6]
Melati A, Padmasari G, Oktavian R, et al. A comparative study of carbon nanofiber (CNF) and activated carbon based on coconut shell for ammonia (NH3) adsor ption performance [J]. Applied Physics A: Materials Science and Processing, 2022,128(3):211.
[7]
Matito M, Martin C, Ania CO, et al. Role of hydrogen bonding in the capture and storage of ammonia in zeolites [J]. Chemical Engineering Journal, 2020,387:124062.
[8]
Pallabi S, Son Y S, Daniel C W, et al. Progress in graphene-based materials as superior media for sensing, sorption, and separation of gaseous pollutants [J]. Coordination Chemistry Reviews, 2018,368:93-114.
[9]
张 婷,严 红,王 帆.纳米Y沸石对堆肥中氨气的吸附作用及其机理研究 [J]. 环境工程, 2013,31(S1):480-482,560. Zhang T, Yan H, Wang F. Adsorption and the mechanism of ammonia in the process of composting with nanosized Y zeolite [J]. Environmental Engineering, 2013,31(S1):480-482,560.
[10]
宋东宝,薛 冰,黄 鹏,等.碳气凝胶的制备及其对极性农药的吸附性能 [J]. 中国环境科学, 2021,41(5):2170-2178. Song D B, Xue B, Huang P, et al. Carbon aerogels: Preparation and adsorption properties to polar pesticides [J]. China Environmental Science, 2021,41(5):2170-2178.
[11]
许孔亮.仿生二氧化锰气凝胶的制备及性能研宄 [D]. 长春:吉林大学, 2018. Xu K L. Preparation and properties of bioinspired MnO2 aerogels [D]. Changchun: Jilin University, 2018.
[12]
商殷兴.仿生二氧化锰/石墨烯气凝胶的制备及性质研究 [D]. 长春:吉林大学, 2019. Shang Y X. Preparation and properties of bioinspired MnO2/rGOaerogels [D]. Changchun: Jilin University, 2019.
[13]
张 利.二氧化锰气凝胶材料吸附畜禽场氨气技术探究 [D]. 太原:山西大学, 2020. Zhang L. Research on technology of manganese dioxide aerogel material absorbing ammonia gas in livestock farm [D]. Taiyuan: Shanxi University, 2020.
[14]
Barin G, Peterson G W, Crocella V, et al. Highly effective ammonia removal in a series of Bronsted acidic porous polymers: investigation of chemical and structural variations [J]. Chemical Science, 2017, 8(6):4399-4409.
[15]
Hu T T, Liu F, Dou S, et al. Selective adsorption of trace gaseous ammonia from air by a sulfonic acid-modified silica xerogel: preparation, characterization and performance [J]. Chemical Engineering Journal, 2022,443:136357.
[16]
吴利瑞,张蓝心,于 飞,等.氨基化碳纳米管/石墨烯气凝胶对甲醛吸附研究 [J]. 中国环境科学, 2015,35(11):3251-3256. Wu L R, Zhang L X, Yu F, et al. Facile composite of amino carbon nanotubes/graphene preparation and adsorption for gaseous formaldehyde [J]. China Environmental Science, 2015,35(11):3251-3256.
[17]
Aleman J, Chadwick A V, He J, et al. Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials [J]. Pure and Applied Chemistry, 2007,79(10):1801-1829.
[18]
Jia J, Zhang P, Chen L. Catalytic decomposition of gaseous ozone over manganese dioxides with different crystal structures [J]. Applied Catalysis B:Environmental, 2016,189:210-218.
[19]
Cao R, Zhang P, Liu Y, et al. Ammonium-treated birnessite-type MnO2 to increase oxygen vacancies and surface acidity for stably decomposing ozone in humid condition. Appl [J]. Applied Surface Science, 2019,495:143607.
[20]
刘 璐.纳米纤维素气凝胶的制备及其在卷烟滤嘴中的应用研究 [D]. 广州:华南理工大学, 2020. Liu L. Preparation of nanocellulose aerogel and its application in cigarette filter [D]. Guangzhou: South China University of Technology, 2020.
[21]
惠岚峰,王 宇,耿合斌.TEMPO氧化纤维素纳米纤维的制备及应用研究进展 [J].天津科技大学学报, 2023,38(1):75-80. Hui L F, Wang Y, Geng H B. Research progress in preparation and application of TEMPO-oxidized cellulose nanofibers [J]. Journal of Tianjin University of Science and Technology, 2023,38(1):75-80.
[22]
Zhang H, Sui S, Zheng X, et al. One-pot synthesis of atomically dispersed Pt on MnO2 for efficient catalytic decomposition of toluene at low temperatures [J]. Applied Catalysis B: Environmental, 2019, 257:117878.
[23]
Gao K, Shao Z, Li J, et al. Cellulose nanofiber-graphene all solid-state flexible supercapacitors [J]. Journal of Materials Chemistry A, 2013,1:63-67.
[24]
Liu Y, Rong S, Zhang P. One-step synthesis of nanocarbon-decorated MnO2with superior activity for indoor formaldehyde removal at room temperature [J]. Applied Catalysis B: Environmental, 2018,235:158-167.
[25]
Cao R, Li L X, Zang P Y. Macroporous MnO2-based aerogel crosslinked with cellulose nanofibers for efficient ozone removal under humid condition [J]. Journal of Hazardous Materials, 2021,407: 124793.
[26]
近藤精一,石川达雄,安部郁夫.吸附科学 [M]. 北京:化学工业出版社, 2006:227-264. Seichi Kondo, Tatsuo Ishikawa, Ikuo Abe. Adsorption science [M]. Beijing: Chemical Industry Press, 2006:227-264.
[27]
Sing K S W, Everett D H, Haul R A, et al. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity [J]. Pure and Applied Chemistry, 1985,57:603-619.
[28]
Rong S P, Zhang P Y, Liu F. Scalable synthesis of water-dispersible 2D manganese dioxide monosheets [J]. Journal of Physics: Condensed Matter, 2020,3:015301.
[29]
Liu Y, Zhang P. Removing surface hydroxyl groups of Ce-modified MnO2to significantly improve its stability for gaseous ozone decomposition [J]. Journal of Physical Chemistry C, 2017,121:23488-23497.
[30]
Kittaka S, Morimura M, Ishimaru S, et al. Effect of confinement on the fluid properties of ammonia in mesoporous of MCM-41and SBA-15 [J]. Langmuir, 2009,25(3):1718-1724.
