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Ghanbari S, Fatehizadeh A, Ebrahimi A, Bina B, Taheri E, Iqbal HMN. Hydrothermally improved natural manganese-containing catalytic materials to degrade 4-chlorophenol. ENVIRONMENTAL RESEARCH 2023; 226:115641. [PMID: 36921786 DOI: 10.1016/j.envres.2023.115641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/03/2023] [Accepted: 03/05/2023] [Indexed: 06/15/2023]
Abstract
Natural manganese-containing mineral (NMM) was used as a catalyst in heterogeneous catalytic ozonation for 4-chlorophenol (4-CP) degradation. The surface and structural properties of NMM were modified by the hydrothermal aging process and called H-NMM. The catalytic activity of NMM and H-NMM were evaluated for the catalytic ozonation process (COP). The synergistic effect of NMM and H-NMM in ozonation processes for 4-CP degradation under optimal conditions (pH of 7, 1 g/L of NMM and H-NMM, 0.85 mg/min of O3, and 15 min of reaction time) was measured by 3.04 and 4.34, respectively. During the hydrothermal process, Mn4+ and Fe2+ were converted to Mn2+ and Fe3+, which caused better performance of the H-NMM than the NMM. During the catalytic ozonation process, Mn2+ is completely oxidized, which increases the production of Hydroxyl radical (•OH). The reactive oxygen species (ROS) generated in the system were identified using radical scavenging experiments. •OH, superoxide radical (•O2-), and singlet oxygen (1O2) represented the dominant reactive species for 4-CP degradation. The O3/H-NMM process indicated a powerful ability in the mineralization of 4-CP (66.31% of TOC degradation). H-NMM exhibited excellent stability and reusability in consecutive catalytic cycles, and the NMM exhibited desirable performance. This study offers NMM and H-NMM as effective, stable, and competitive catalysts for hastening and enhancing the ozonation process to mitigate environmentally related pollutants of high concern.
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Affiliation(s)
- Sobhan Ghanbari
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Student Research Committee, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Fatehizadeh
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Afshin Ebrahimi
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Bijan Bina
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ensiyeh Taheri
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico; Institute of Advanced Materials for Sustainable Manufacturing, Tecnologico de Monterrey, Monterrey, 64849, Mexico.
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Li S, Li Y, Sun L, Pan F, Yuan X, Xia D. Facilitated catalytic ozonation of atrazine over highly stabilized Zn-Al layered double oxides composites: efficacy and mechanism. ENVIRONMENTAL TECHNOLOGY 2023; 44:1478-1492. [PMID: 34762002 DOI: 10.1080/09593330.2021.2005687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
A series of Zn-Al Layered Double Oxides (ZnAl-LDO) composites were prepared by the hydrothermal and calcination method via employing the Zn-Al Layered Double Hydroxide (ZnAl-LDH) as the precursors in the present study. The structural properties and the catalytic ozonation activity of ZnrAl-T composites synthesized with different Zn/Al molar ratios and calcination temperatures were systematically investigated. Diversified characterizations were applied to analyze the phase structure and chemical composition of ZnrAl-T composites. As the calcination temperature increased, the layered ZnAl-LDH structure could be entirely destroyed and the crystallinity gradually improved. With the Zn/Al mole ratio of 4.0 and calcination temperature of 500°C, the Zn4Al-500 composite obtained the outstanding catalytic ozonation performance for atrazine (ATZ) degradation with the pseudo-first-order constant of 0.5080 min-1, which was 5 times more than that in O3 alone. Meanwhile, the ATZ degradation efficiency was gradually enhanced from 44.1% to 99.9% within 3.0 min when the solution pH ranged from 3.0 to 10.0. Besides, the Zn4Al-500 composite exhibited splendid stability over multiple reaction cycles. In addition, the radical scavenging test and electron spin resonance measurement demonstrated that superoxide radical and hydroxyl radical are the dominant reactive species in O3/Zn4Al-500 process. Moreover, nineteen and ten transformation products were detected in O3 alone and O3/Zn4Al-500 process, and possible degradation pathways of ATZ were further elucidated. Overall, the Zn4Al-500 composite would provide a potential alternative for pollutants removal due to its high catalytic ozonation efficiency, stability, and reusability.
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Affiliation(s)
- Shangkun Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan, People's Republic of China
- Research and Development Center of Beijing Drainage Group Technology, Beijing, People's Republic of China
| | - Yangang Li
- Research and Development Center of Beijing Drainage Group Technology, Beijing, People's Republic of China
| | - Lei Sun
- School of Environmental Engineering, Wuhan Textile University, Wuhan, People's Republic of China
| | - Fei Pan
- School of Environmental Engineering, Wuhan Textile University, Wuhan, People's Republic of China
| | - Xiangjuan Yuan
- School of Environmental Engineering, Wuhan Textile University, Wuhan, People's Republic of China
- Engineering Research Center for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, People's Republic of China
| | - Dongsheng Xia
- School of Environmental Engineering, Wuhan Textile University, Wuhan, People's Republic of China
- Engineering Research Center for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, People's Republic of China
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Chen W, He H, Liang J, Wei X, Li X, Wang J, Li L. A comprehensive review on metal based active sites and their interaction with O 3 during heterogeneous catalytic ozonation process: Types, regulation and authentication. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130302. [PMID: 36347142 DOI: 10.1016/j.jhazmat.2022.130302] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/30/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Heterogeneous catalytic ozonation (HCO) was a promising water purification technology. Designing novel metal-based catalysts and exploring their structural-activity relationship continued to be a hot topic in HCO. Herein, we reviewed the recent development of metal-based catalysts (including monometallic and polymetallic catalysts) in HCO. Regulation of metal based active sites (surface hydroxyl groups, Lewis acid sites, metal redox cycle and surface defect) and their key roles in activating O3 were explored. Advantage and disadvantage of conventional characterization techniques on monitoring metal active sites were claimed. In situ electrochemical characterization and DFT simulation were recommended as supplement to reveal the metal active species. Though the ambiguous interfacial behaviors of O3 at these active sites, the existence of interfacial electron migration was beyond doubt. The reported metal-based catalysts mainly served as electron donator for O3, which resulted in the accumulation of oxidized metal and reduced their activity. Design of polymetallic catalysts could accelerate the interfacial electron migration, but they still faced with the dilemma of sluggish Me(n+m)+/Men+ redox cycle. Alternative strategies like coupling active metal species with mesoporous silicon materials, regulating surface hydrophobic/hydrophilic properties, polaring surface electron distribution, coupling HCO process with photocatalysis and H2O2 were proposed for future research.
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Affiliation(s)
- Weirui Chen
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Hengxi He
- School of Environment, South China Normal University, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China
| | - Jiantao Liang
- School of Environment, South China Normal University, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China
| | - Xipeng Wei
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xukai Li
- School of Environment, South China Normal University, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China.
| | - Jing Wang
- School of Environment, South China Normal University, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China
| | - Laisheng Li
- School of Environment, South China Normal University, Guangdong Provincial Engineering Technology Research Center for Drinking Water Safety, Guangdong Provincial Key Lab of Functional Materials for Environmental Protection, Guangzhou 510006, China.
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State of Art and Perspectives in Catalytic Ozonation for Removal of Organic Pollutants in Water: Influence of Process and Operational Parameters. Catalysts 2023. [DOI: 10.3390/catal13020324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The number of organic pollutants detected in water and wastewater is continuously increasing thus causing additional concerns about their impact on public and environmental health. Therefore, catalytic processes have gained interest as they can produce radicals able to degrade recalcitrant micropollutants. Specifically, catalytic ozonation has received considerable attention due to its ability to achieve advanced treatment performances at reduced ozone doses. This study surveys and summarizes the application of catalytic ozonation in water and wastewater treatment, paying attention to both homogeneous and heterogeneous catalysts. This review integrates bibliometric analysis using VOS viewer with systematic paper reviews, to obtain detailed summary tables where process and operational parameters relevant to catalytic ozonation are reported. New insights emerging from heterogeneous and homogenous catalytic ozonation applied to water and wastewater treatment for the removal of organic pollutants in water have emerged and are discussed in this paper. Finally, the activities of a variety of heterogeneous catalysts have been assessed using their chemical–physical parameters such as point of zero charge (PZC), pKa, and pH, which can determine the effect of the catalysts (positive or negative) on catalytic ozonation processes.
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Xue X, Liao W, Liu D, Zhang X, Huang Y. MgO/Co3O4 composite activated peroxymonosulfate for levofloxacin degradation: Role of surface hydroxyl and oxygen vacancies. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Liang D, Hu Y, Xiao C, Wang G, Xie J, Zhu X. Highly efficient catalytic ozonation for ammonium in water upon γ-Al 2O 3@Fe/Mg with acidic-basic sites and oxygen vacancies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 834:155278. [PMID: 35447182 DOI: 10.1016/j.scitotenv.2022.155278] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/10/2022] [Accepted: 04/10/2022] [Indexed: 06/14/2023]
Abstract
Catalytic ozonation has prospects in the advanced treatment of nitrogen removal, and solid base MgO can efficiently catalyze the ozonation of ammonium nitrogen. However, it is necessary to improve the problem of easy loss, difficult recovery, and low percentage of gaseous products. Here, MgO, amorphous Fe2O3, and γ-Al2O3 were selected as doping components and supports, respectively, to prepare γ-Al2O3@Fe/Mg composite catalysts with abundant acidic-basic sites and oxygen vacancies. The results show that γ-Al2O3@Fe/Mg5 can efficiently catalyze the ozonation of ammonium nitrogen (98.73%) with 67.82% gaseous product selectivity under the conditions of initial pH = 7, catalyst dosage of 112.88 g/L, and ozone dosage of 2.4 mg/min. The doping of Fe2O3 and MgO with a weaker lattice oxygen binding energy improves the gaseous product selectivity. The mechanism of ammonium nitrogen removal for γ-Al2O3@Fe/Mg5 is revealed, especially the intrinsic contribution of acidic-basic sites and oxygen vacancies. The pH and active sites play different roles in ozone decomposition for NH4+ removal. Surface hydroxyl protonation on basic sites and oxygen vacancies and electron transfer on acidic sites are responsible for ozone decomposition to hydroxyl radicals. Moreover, γ-Al2O3@Fe/Mg5 exhibits good stability, few leaching ions, and can be settled in water for easy recovery. This study suggests that γ-Al2O3@Fe/Mg5 is a good candidate for the catalytic ozonation of ammonium nitrogen.
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Affiliation(s)
- Dongmin Liang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Yongyou Hu
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China.
| | - Chun Xiao
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
| | - Guobin Wang
- Guangzhou Pengkai Environment Technology Co., Ltd, Guangzhou 511493, China
| | - Jieyun Xie
- Guangzhou Pengkai Environment Technology Co., Ltd, Guangzhou 511493, China
| | - Xiaoqiang Zhu
- Guangzhou Pengkai Environment Technology Co., Ltd, Guangzhou 511493, China
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Liu Y, Xi H, Wang J, Fu J, Shi T. Mechanistic studies on the oxidation reaction of antitubercular drug isoniazid and its analogy hydrazides by chlorine dioxide over a wide pH range. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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8
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Catalytic ozonation of N, N-dimethylacetamide in aqueous solution by Fe3O4@SiO2@MgO composite: Optimization, degradation pathways and mechanism. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104380] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Fluidized ZnO@BCFPs Particle Electrodes for Efficient Degradation and Detoxification of Metronidazole in 3D Electro-Peroxone Process. MATERIALS 2022; 15:ma15103731. [PMID: 35629757 PMCID: PMC9144341 DOI: 10.3390/ma15103731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/06/2022] [Accepted: 05/18/2022] [Indexed: 02/01/2023]
Abstract
A novel material of self-shaped ZnO-embedded biomass carbon foam pellets (ZnO@BCFPs) was successfully synthesized and used as fluidized particle electrodes in three-dimensional (3D) electro-peroxone systems for metronidazole degradation. Compared with 3D and 2D + O3 systems, the energy consumption was greatly reduced and the removal efficiencies of metronidazole were improved in the 3D + O3 system. The degradation rate constants increased from 0.0369 min-1 and 0.0337 min-1 to 0.0553 min-1, respectively. The removal efficiencies of metronidazole and total organic carbon reached 100% and 50.5% within 60 min under optimal conditions. It indicated that adding ZnO@BCFPs particle electrodes was beneficial to simultaneous adsorption and degradation of metronidazole due to improving mass transfer of metronidazole and forming numerous tiny electrolytic cells. In addition, the process of metronidazole degradation in 3D electro-peroxone systems involved hydroxyethyl cleavage, hydroxylation, nitro-reduction, N-denitrification and ring-opening. The active species of ·OH and ·O2- played an important role. Furthermore, the acute toxicity LD50 and the bioconcentration factor of intermediate products decreased with the increasing reaction time.
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Abstract
In aircraft and spacecraft, outside air is not directly fed to the passenger because it contains ozone at elevated altitudes. The decomposition of low concentration ozone in the air was carried out at 25 °C by catalytic oxidation on Pd-based catalysts supported on a high surface area hybrid TiO2. The use of these hybrid catalysts has shown a beneficial effect, both on the catalytic activity and on the catalyst stability. Kinetic studies showed that the most promising catalytic phase (Pd/TiO2_100) was the one obtained from the TiO2 support containing the lowest content of citrate ligands and leading to small Pd particles (around 4 nm). The effect of catalyst synthesis on the decomposition of O3 gas (15 ppm) in a dry and humid (HR = 10%) stream in a closed environment such as aircraft or spacecraft was also investigated in this study and further elucidated by detailed characterizations. It was shown that the system could be used as an effective treatment for air coming from outside.
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Issaka E, Amu-Darko JNO, Yakubu S, Fapohunda FO, Ali N, Bilal M. Advanced catalytic ozonation for degradation of pharmaceutical pollutants-A review. CHEMOSPHERE 2022; 289:133208. [PMID: 34890622 DOI: 10.1016/j.chemosphere.2021.133208] [Citation(s) in RCA: 73] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 06/13/2023]
Abstract
Various chemical treatment techniques are involved in removing refractory organic compounds from water and wastewater using the oxidation reaction of hydroxyl radicals (•OH). The use of catalysts in advanced catalytic ozonation is likely to improve the decomposition of molecular ozone to generate highly active free radicals that facilitate the rapid and efficient mineralization and degradation of numerous organics. For the degradation of toxic organic pollutants in wastewater, the advanced catalytic ozonation process has been widely applied in recent years. Low utilization efficiency of ozone and ineffective mineralization of organic contaminants by ozone can be remedied with advanced catalytic ozonation. Advanced catalytic ozonation has gained popularity because of these merits. However, homogeneous catalytic ozonation has the disadvantage of producing secondary contaminants from the addition of metallic ions. Heterogeneous catalytic ozonation can overcome this drawback by utilizing metals, metallic oxides, and carbon materials as a catalyst of efficacy and stability. This review discusses various aspects of catalytic ozonation in wastewater treatment of pharmaceutical pollutants, application of catalytic ozonation process in typical wastewater, and prospects in advancing the techniques in heterogeneous catalytic ozonation.
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Affiliation(s)
- Eliasu Issaka
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | | | - Salome Yakubu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | | | - Nisar Ali
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Deep Utilization Technology of Rock-salt Resource, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
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Shen T, Bao H, Su W, Jiang Y, Tong S. Manganese containing oxides catalytic ozonation in aqueous solution: Catalytic mechanism on acid sites. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120053] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sirro S, Ershova K, Kochemirovsky V, Fiks J, Kondrakhina P, Ermakov S, Mokhorov D, Kochemirovskaia S. Recognition of fake paintings of the 20th-century Russian avant-garde using the physicochemical analysis of zinc white. Forensic Chem 2021. [DOI: 10.1016/j.forc.2021.100367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Liu X, Li H, Fang Y, Yang Z. Heterogeneous catalytic ozonation of sulfamethazine in aqueous solution using maghemite-supported manganese oxides. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118945] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Fu X, Huang Y, Jin Z, Li L, Zhang Z. Magnetic cotton textile wastes pyrolyzed by ferric cerium oxide for degradation of p-nitrophenol by catalytic ozonation. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:2296-2308. [PMID: 33989194 DOI: 10.2166/wst.2021.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this paper, magnetic cotton textile wastes pyrolyzed by ferric cerium oxide (FexCey oxide/PC) were synthesized for degradation of p-nitrophenol by catalytic ozonation, and the optimal Fe-Ce ratio was 10:1. Compared to Fe10Ce1 oxide, the Fe10Ce1 oxide/PC not only greatly improved the degradation efficiency of PNP, but also reduced the dosage of catalyst. Through the BET test, the Fe10Ce1 oxide/PC has a high specific surface area to absorb part of the pollutants. VSM test shows that the material is magnetic and easy to recycle. Response surface methodology (RSM) was applied to optimize the experimental condition, and the optimal removal rate was 90% when the initial pH was 9, the catalyst dosage was 0.4 g/L, and the ozone addition was 1.77 L/min (5.9 mg/L). Finally, the mechanism of PNP degradation was explored utilizing inhibitor and ESR free radical detection. The adsorption capacity of the material and electron-absorbing property of PNP jointly determined the high catalytic efficiency with Fe10Ce1 oxide/PC in catalytic ozonation.
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Affiliation(s)
- Xiaojie Fu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China E-mail:
| | - Yuanxing Huang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China E-mail:
| | - Zhihao Jin
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China E-mail:
| | - Liang Li
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China E-mail:
| | - Zhiguo Zhang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China E-mail:
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Ren J, Li J, Lv L, Wang J. Regeneration of [Bmim]BF 4 ionic liquid by ozonation: hydrogen bond roles, synergistic effect, and DFT calculation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:12909-12917. [PMID: 33097991 DOI: 10.1007/s11356-020-11298-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 10/18/2020] [Indexed: 06/11/2023]
Abstract
Ionic liquids (ILs) are a kind of promising extractants for removing undesirable organics from industrial wastewater and crude oil, etc. Herein, IL regeneration by ozonation was proposed for its recycling. 1-Butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF4) and phenol were used as the representative IL and organic matter, respectively. The regeneration performance, stability of [Bmim]BF4, and roles of hydrogen bonds between O3 and [Bmim]BF4 in the phenol removal were studied. The experimental results showed that 90.2% of phenol was degraded in [Bmim]BF4 after ozonation treatment for 30 min with the O3 concentration of 1.2 mg/L. The nonvolatility of [Bmim]BF4-made phenol was adequately degraded, while the concentration of phenol increased during ozone treatment in the conventional extractants (ethanol, ethyl acetate, and dichloromethane) due to their high volatility. The reuse experiments, spectra of Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy indicated that [Bmim]BF4 was steady under the ozonation process. Density functional theory simulation confirmed that hydrogen bonds between [Bmim]+ and O3 could be formed, and calculational results of Hirshfeld charges indicated that the nucleophilicity of O3 was enhanced by the hydrogen bonds. The enhanced nucleophilicity resulted in the increase of phenol degradation efficiency by ozonation, and the synergistic effect between O3 and ILs was proportional to the hydrogen bond donor ability of ILs.
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Affiliation(s)
- Jingyu Ren
- School of Petroleum Engineering and Environmental Engineering, Yan'an University, Yan'an, 716000, China.
- School of Electrical Engineering, Dalian University of Technology, Dalian, 116024, China.
- Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an, 716000, China.
| | - Jie Li
- School of Electrical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Lei Lv
- School of Petroleum Engineering and Environmental Engineering, Yan'an University, Yan'an, 716000, China
- Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an, 716000, China
| | - Jian Wang
- School of Petroleum Engineering and Environmental Engineering, Yan'an University, Yan'an, 716000, China
- Yan'an Key Laboratory of Environmental Monitoring and Remediation, Yan'an, 716000, China
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Zhang M, Yin D, Guo J, Wu H, Gong M, Feng X. Ternary catalyst Mn-Fe-Ce/Al 2O 3 for the ozonation of phenol pollutant: performance and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10.1007/s11356-021-13006-5. [PMID: 33638073 DOI: 10.1007/s11356-021-13006-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 02/12/2021] [Indexed: 06/12/2023]
Abstract
In this study, a novel ternary catalyst Mn-Fe-Ce/Al2O3 was synthesized by co-impregnation method, and was characterized by XRD, SEM, XPS, and FTIR. The catalytic performance of this ternary catalyst was evaluated in the heterogeneous catalytic ozonation of phenol pollutants and it improved the removal rate and mineralization degree of phenol pollutants. The changes of dissolved ozone in water and the TBA experiment proved that the ternary catalyst could accelerate the decomposition of ozone into hydroxyl radicals, thus accelerating the oxidation of phenol. Phosphate experiments and surface hydroxyl density measurements proved that surface hydroxyl was the active site of the catalyst. XPS analysis showed that the ternary catalysts accelerated electron transfer through the redox cycles of Mn2+-Mn3+-Mn4+, Fe2+-Fe3+, and Ce3+-Ce4+, which also contributed to the high catalytic activity. Moreover, the catalyst maintained high catalytic activity after five cycles of use. Therefore, the ternary catalyst was considered an efficient and promising catalyst for catalytic ozonation system.
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Affiliation(s)
- Manning Zhang
- College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Dulin Yin
- College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Jinjin Guo
- Wuhu Gefeng Green Technology Research Center Co., Ltd, Wuhu, 241000, China
| | - Huanghe Wu
- Green Technology Materials Co., Ltd, Pingxiang, 337000, China
| | - Meiling Gong
- Gefeng Environmental Protection Technology & Materials Co., Ltd, Wuhu, 241000, China
| | - Xiangdong Feng
- College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China.
- Wuhu Gefeng Green Technology Research Center Co., Ltd, Wuhu, 241000, China.
- Green Technology Materials Co., Ltd, Pingxiang, 337000, China.
- Gefeng Environmental Protection Technology & Materials Co., Ltd, Wuhu, 241000, China.
- Gefeng, Green Technology Materials CO., LTD, Anyuan Industrial Park, ChengGong Parkway, Pingxiang City, 337000, Jiangxi Province, People's Republic of China.
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Rekhate CV, Srivastava J. Recent advances in ozone-based advanced oxidation processes for treatment of wastewater- A review. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100031] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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