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Tran TV, Nguyen DTC, Kumar PS, Din ATM, Qazaq AS, Vo DVN. Green synthesis of Mn 3O 4 nanoparticles using Costus woodsonii flowers extract for effective removal of malachite green dye. ENVIRONMENTAL RESEARCH 2022; 214:113925. [PMID: 35868583 DOI: 10.1016/j.envres.2022.113925] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 07/11/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
The pollution of organic dyes such as malachite green is one of the globally critical issues, calling for efficient mitigation methods. Herein, we developed green Mn3O4 nanoparticles synthesized using natural compounds extracted from Costus woodsonii flowers under an ultrasound-assisted mode. The materials were characterized using several physicochemical techniques such as Fourier-transform infrared spectroscopy, X-ray diffraction, Energy-dispersive X-ray spectroscopy, scanning electron microscopy, Raman spectroscopy, and N2 adsorption desorption isotherm measurement. The X-ray diffraction and N2 isotherm plots confirmed the presence of tetragonal γ-Mn3O4 phase and mesoporous structure, respectively. Carbonyl groups derived from flavonoids or carboxylic compounds were found in the surface of green Mn3O4 nanoparticles. The effect of pH, contact time, dose, and concentration on the adsorption of malachite green over green Mn3O4 was carried out. The maximum malachite green adsorption capacity for green Mn3O4 nanoparticles was 101-162 mg g-1. Moreover, kinetic and isotherm adsorption of malachite green obeyed Langmuir (Radj.2 = 0.980-0.995) and pseudo first-order models (Radj.2 = 0.996-1.00), respectively. Adsorption of malachite green over green Mn3O4 was a thermodynamically spontaneous process due to negative Gibbs free energy values (ΔGο < 0). Green Mn3O4 nanoparticles offered a high stability through the FR-IR spectra analysis. With a good recyclability of 4 cycles, green Mn3O4 nanoparticles can be used as potential adsorbent for removing malachite green dye from water.
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Affiliation(s)
- Thuan Van Tran
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Viet Nam; NTT Hi-Tech Institute, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Viet Nam
| | - Duyen Thi Cam Nguyen
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Viet Nam; NTT Hi-Tech Institute, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Viet Nam
| | - Ponnusamy Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India
| | - Azam Taufik Mohd Din
- School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Penang, Malaysia
| | - Amjad Saleh Qazaq
- Prince Sattam Bin Abdulaziz University, College of Engineering, Civil Engineering Department, Al Kharj 16273, Saudi Arabia
| | - Dai-Viet N Vo
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Viet Nam; School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Penang, Malaysia.
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Utilization of Solution Grown Manganese Oxide Nanocrystallite to Microstructure Against Bacteria’s Inhibition. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02206-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Liu J, Yin H, Nie Q, Wang H, Zhou J, Zou S. Encapsulating Mn 3O 4 Nanorods in a Shell of SiO 2 Nanobubbles for Confined Fenton-Type Catalysis. Inorg Chem 2021; 60:16658-16665. [PMID: 34672543 DOI: 10.1021/acs.inorgchem.1c02557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Core-shell structured nanomaterials with delicate architectures have attracted considerable attention for realizing multifunctional responses and harnessing multiple interfaces for enhanced functionalities. Here, we report a controllable synthesis of core-shell structured Mn3O4@SiO2NB nanomaterials consisting of Mn3O4 nanorods covered with a shell of SiO2 nanobubbles. A series of Mn3O4@SiO2NB catalysts with tunable secondary structures can be synthesized by simply tuning the feeding ratio and the modification conditions. The as-synthesized Mn3O4@SiO2NB catalysts exhibit excellent catalytic performance in the degradation of methylene blue (MB) because the Fenton-type reaction between Mn3O4 and H2O2 is confined in an MB-rich environment created by the SiO2 nanobubble shell. The confined Fenton-type catalysis maximizes the contact of MB molecules with the reactive oxygen species and significantly promotes the degradation efficiency of MB. Under optimal conditions, Mn3O4@SiO2NB-0.4 can reach a degradation efficiency of 92% at room temperature and neutral pH within 12 min, which outperforms most reported Mn-based catalysts.
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Affiliation(s)
- Juanjuan Liu
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, P. R. China
| | - Haoyong Yin
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, P. R. China
| | - Qiulin Nie
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, P. R. China
| | - Hui Wang
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, P. R. China
| | - Jie Zhou
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, P. R. China
| | - Shihui Zou
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
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Daikopoulou V, Skliri E, Koutsouroubi ED, Armatas GS, Lykakis IN. Selective Mild Oxidation of Anilines into Nitroarenes by Catalytic Activation of Mesoporous Frameworks Linked with Gold-Loaded Mn 3 O 4 Nanoparticles. Chempluschem 2021; 87:e202100413. [PMID: 34709733 DOI: 10.1002/cplu.202100413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/13/2021] [Indexed: 11/10/2022]
Abstract
This work reports the synthesis and catalytic application of mesoporous Au-loaded Mn3 O4 nanoparticle assemblies (MNAs) with different Au contents, i. e., 0.2, 0.5 and 1 wt %, towards the selective oxidation of anilines into the corresponding nitroarenes. Among common oxidants, as well as several supported gold nanoparticle platforms, Au/Mn3 O4 MNAs containing 0.5 wt % Au with an average particle size of 3-4 nm show the best catalytic performance in the presence of tert-butyl hydroperoxide (TBHP) as a mild oxidant. In all cases, the corresponding nitroarenes were isolated in high to excellent yields (85-97 %) and selectivity (>98 %) from acetonitrile or greener solvents, such as ethyl acetate, after simple flash chromatography purification. The 0.5 % Au/Mn3 O4 catalyst can be isolated and reused four times without a significant loss of its activity and can be applied successfully to a lab-scale reaction of p-toluidine (1 mmol) leading to the p-nitrotulene in 83 % yield. The presence of AuNPs on the Mn3 O4 surface enhances the catalytic activity for the formation of the desired nitroarene. A reasonable mechanism was proposed including the plausible formation of two intermediates, the corresponding N-aryl hydroxylamine and the nitrosoarene.
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Affiliation(s)
- Vassiliki Daikopoulou
- Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124, Thessaloniki, Greece
| | - Euaggelia Skliri
- Department of Materials Science and Technology, University of Crete, Vassilika Vouton, Heraklion, 70013, Greece
| | - Eirini D Koutsouroubi
- Department of Materials Science and Technology, University of Crete, Vassilika Vouton, Heraklion, 70013, Greece
| | - Gerasimos S Armatas
- Department of Materials Science and Technology, University of Crete, Vassilika Vouton, Heraklion, 70013, Greece
| | - Ioannis N Lykakis
- Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124, Thessaloniki, Greece
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Zhou L, Li H, Han R. Synthesis of self-assembled hierarchical AlPO-34 microspheres by using an ionic liquid and its application in heavy metal removal. ROYAL SOCIETY OPEN SCIENCE 2021; 8:201322. [PMID: 34007457 PMCID: PMC8079994 DOI: 10.1098/rsos.201322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
Hierarchical AlPO-34 molecular sieves microspheres were synthesized in a [BMIm]Br ionic liquid without template or complex post-treatment process. The formation mechanism of such framework structures and their morphology were investigated. [BMIm]Br was proven to serve as both solvent and sole provider of the structure directing agent. The organic amine in the compound affects the framework density of the crystals and promotes the formation of a chabazite (CHA) type framework. After ageing for 1 h the AlPO-34 microspheres are formed due to the aggregation properties of the ionic liquid. The hierarchical mirosphere has a relatively high Brunauer-Emmett-Teller surface area and a considerably uniform mesoporous channel network. The hierarchical AlPO-34 microspheres were used as absorbers of heavy metal cations and showed a higher loading capacity and distribution coefficient compared with the AlPO-34-NH.
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Affiliation(s)
- Liang Zhou
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
| | - Hongjian Li
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
| | - Runlin Han
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an 343009, People's Republic of China
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Zhou L, Han R, Tao Y, Wang J, Luo Y. Optimized Preparation of Nanosized Hollow SSZ-13 Molecular Sieves with Ultrasonic Assistance. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2298. [PMID: 33233615 PMCID: PMC7699690 DOI: 10.3390/nano10112298] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 06/11/2023]
Abstract
Because of its unique eight-membered ring pore structure and the arrangement of cations in its structure, the SSZ-13 molecular sieve has a higher affinity for CO2 than other gases, meaning it has attracted more attention than other porous materials for CO2 adsorption. However, the expensive template and long preparation time limits the industrial production of SSZ-13. In this work, a hollow structure was successfully introduced into the nanosized SSZ-13 molecular sieve with ultrasonic treatment. The effects of the amount of seed added and the ultrasonic time on the structure were investigated. When the amount of seed added was 0.5 wt.% and the ultrasonic time was 60 min, the sample showed a hollow cubic crystal with a diameter of about 50 nm. The specific surface area reached 791.50 m2/g, and the mesoporous ratio was 66.3%. The samples were tested for CO2 adsorption performance at 298 K. It was found that the hollow sample prepared in this work has higher CO2 adsorption capacity compared with the SSZ-13 zeolite prepared with conventional methods. When the adsorption pressure was 0.27 bar, the adsorption amount reached 2.53 mmol/g. The hollow SSZ-13 molecular sieve reached a CO2 adsorption capacity of 4.24 mmol/g at 1 bar.
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Affiliation(s)
- Liang Zhou
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China; (L.Z.); (Y.T.); (J.W.); (Y.L.)
| | - Runlin Han
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China; (L.Z.); (Y.T.); (J.W.); (Y.L.)
- School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an 343009, China
| | - Yuxuan Tao
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China; (L.Z.); (Y.T.); (J.W.); (Y.L.)
| | - Jinqu Wang
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China; (L.Z.); (Y.T.); (J.W.); (Y.L.)
| | - Yiwei Luo
- School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China; (L.Z.); (Y.T.); (J.W.); (Y.L.)
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