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Li S, Li M, Han J, Xia Z, Chen S, Xie G, Gao S, Lu JY, Yang Q. In situ growth of copper-based energetic complexes on GO and an MXene to synergistically promote the thermal decomposition of ammonium perchlorate. Dalton Trans 2023; 52:17458-17469. [PMID: 37953710 DOI: 10.1039/d3dt02686h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
In this work, using tri(5-aminotetrazolium)triazine (H3TATT) as an energetic ligand, two new energetic complexes (ECs), Cu(HTATT)(H2O)2 (EC-Cu1) and [Cu3(TATT)2(H2O)2]n (EC-Cu2), have been synthesized under hydrothermal conditions. Their crystal structures, thermal decomposition behaviors and specific heat capacities were determined respectively. In addition, two ECs were combined with GO (graphene oxide) and an MXene (Ti3C2TX) respectively by an in situ growth strategy to obtain four carbon nanomaterials/EC composites, which were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The effects of two ECs and four composites on the thermal decomposition of AP were studied by differential scanning calorimetry (DSC). Among them, the sample containing 8 wt% composite (GO/EC-Cu2) has the best promoting effect on AP, causing the high temperature decomposition peak to overlap with the low temperature decomposition peak of AP, reducing the decomposition peak temperature of AP from 443.6 °C to 308.9 °C, and the heat release is up to 4875 J g-1. Compared with ECs acting solely on AP, composite materials have stronger synergistic and promoting effects. This study provides a new example of the synthesis of carbon nanomaterial/EC composites and the improvement of the performance of AP-based solid propellants.
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Affiliation(s)
- Shuting Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, P. R. China.
| | - Min Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, P. R. China.
| | - Jinxi Han
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, P. R. China.
| | - Zhengqiang Xia
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, P. R. China.
| | - Sanping Chen
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, P. R. China.
| | - Gang Xie
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, P. R. China.
| | - Shengli Gao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, P. R. China.
| | - Jack Y Lu
- Department of Chemistry, University of Houston-Clear Lake, 2700 Bay Area Blvd., Houston, TX 77058, USA
| | - Qi Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi, 710127, P. R. China.
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Bhosale R, Bhosale S, Narale D, Jambhale C, Kolekar S. Construction of Well-Defined Two-Dimensional Architectures of Trimetallic Metal-Organic Frameworks for High-Performance Symmetric Supercapacitors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12075-12089. [PMID: 37578309 DOI: 10.1021/acs.langmuir.3c01337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
The high surface-to-volume ratio and extraordinarily large-surface area of two-dimensional (2D) metal-organic framework (MOF) architectures have drawn particular interest for use in supercapacitors. To achieve an excellent electrode material for supercapacitors, well-defined 2D nanostructures of novel trimetallic MOFs were developed for supercapacitor applications. Multivariate MOFs (terephthalate and trimesate MOF) with distinctive nanobrick and nanoplate-like structures were successfully synthesized using a straightforward one-step reflux condensation method by combining Ni, Co, and Zn metal species in equimolar ratios with two different ligands. Furthermore, the effects of the tricarboxylic and dicarboxylic ligands on cyclic voltammetry, charge-discharge cycling, and electrochemical impedance spectroscopy were studied. The derived terephthalate and trimesate MOFs are supported with stainless-steel mesh and provide a suitable electrolyte environment for rapid faradaic reactions with an elevated specific capacity, excellent rate capability, and exceptional cycling stability. It shows a specific capacitance of 582.8 F g-1, a good energy density of 40.47 W h kg-1, and a power density of 687.5 W kg-1 at 5 mA cm-2 with an excellent cyclic stability of 92.44% for 3000 charge-discharge cycles. A symmetric BDC-MOF//BDC-MOF supercapacitor device shows a specific capacitance of 95.22 F g-1 with low capacitance decay, high energy, and power densities which is used for electronic applications. These brand-new trimetallic MOFs display outstanding electrochemical performance and provide a novel strategy for systematically developing high-efficiency energy storage systems.
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Affiliation(s)
- Rakhee Bhosale
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, India
| | - Sneha Bhosale
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, India
| | - Dattatray Narale
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, India
| | - Chitra Jambhale
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, India
| | - Sanjay Kolekar
- Analytical Chemistry and Material Science Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, India
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Jiang D, Fang D, Zhou Y, Wang Z, Yang Z, Zhu J, Liu Z. Strategies for improving the catalytic activity of metal-organic frameworks and derivatives in SR-AOPs: Facing emerging environmental pollutants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 306:119386. [PMID: 35550132 DOI: 10.1016/j.envpol.2022.119386] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
As persulfate activator, Metal organic frameworks (MOFs) and derivatives are widely concerned in degradation of emerging environmental pollutants by advanced oxygen technology dominated by sulfate radical () (SR-AOPs). However, the poor stability and low catalytic efficiency limit the performance of MOFs, requiring multiple strategies to further enhance their catalytic activity. The aim of this paper is to improve the catalytic activity of MOFs and their derivatives by physical and chemical enhancement strategies. Physical enhancement strategies mainly refer to the activation strategies including thermal activation, microwave activation and photoactivation. However, the physical enhancement strategies need energy consumption and require high stability of MOFs. As a substitute, chemical enhancement strategies are more widely used and represented by optimization, modification, composites and derivatives. In addition, the identification of reactive oxygen species, active site and electron distribution are important for distinguishing radical and non-radical pathways. Finally, as a new wastewater treatment technology exploration of unknown areas in SR-AOPs could better promote the technology development.
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Affiliation(s)
- Danni Jiang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Di Fang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Yu Zhou
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Zhiwei Wang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China
| | - ZiHao Yang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Jian Zhu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Zhiming Liu
- Department of Biology, Eastern New Mexico University, Portales, NM, 88130, USA
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Mahimai BM, Sivasubramanian G, Moorthy S, Deivanayagam P. Copper Metal Organic Framework-Encapsulated Ionic Liquid-Decorated Sulfonated Polystyrene- block-poly(ethylene-ranbutylene)- block-polystyrene Membranes for Fuel Cells. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Berlina Maria Mahimai
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, Chengalpattu District, Tamilnadu, India
| | - Gandhimathi Sivasubramanian
- Department of Physics, SRM Valliammai Engineering College, Kattankulathur 603203, Chengalpattu District, Tamilnadu, India
| | - Siva Moorthy
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur 603203, Chengalpattu District, Tamilnadu, India
| | - Paradesi Deivanayagam
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, Chengalpattu District, Tamilnadu, India
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Combined Biological and Photocatalytic Degradation of Dibutyl Phthalate in a Simulated Wastewater Treatment Plant. Catalysts 2022. [DOI: 10.3390/catal12050504] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The removal of organic pollutant in wastewater has become a major priority in water treatment. In this study, organic pollutant dibutyl phthalate (DBP) has been biologically and photocatalytically degraded in wastewater using modified transition metal dichalcogenides. The as-synthesized nanoparticles were characterized using various characterization techniques, which includes XRD, Raman, FT-IR, SEM, TEM, UV-Vis, XPS, PL, EIS, and photocurrent responses. The nanoparticles synthesized by slightly modified hydrothermal method depicted a hexagonal phase, as evidenced by XRD and Raman analyses. The biological degradation of 69% dibutyl phthalate was achieved. Moreover, the total organic carbon removal efficiency of 70% was further achieved. Incorporating biological and photocatalytic systems significantly improved dibutyl phthalate removal in secondary effluent by three folds when compared to the unilateral operating setup. The optimized parameters such as pH = 7, 5 ppm and DBP concentration with the addition of 10 mg catalysts loading were employed for the photocatalytic degradation of dibutyl phthalate in water. Pristine WS2 exhibited photocatalytic efficiencies of 46% after 60 min illumination. The use of dual system 3% Ce/Gd-WS2 exhibited the highest photodegradation of 85%, with a chemical oxygen demand of 80% and total organic carbon of 77%. The enhanced activity by the composite is attested to the formation of heterojunction exhibiting excellent charge separation and low rate of recombination. The 3% Ce/Gd-WS2 can be used up to seven times and still achieve a degradation of 56%.
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Ezugwu CI, Sonawane JM, Rosal R. Redox-active metal-organic frameworks for the removal of contaminants of emerging concern. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120246] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Facile modifications of HKUST-1 by V, Nb and Mn for low-temperature selective catalytic reduction of nitrogen oxides by NH3. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Enhanced Catalytic Activity for CO Oxidation by Highly Active Pd Nanoparticles Supported on Reduced Graphene Oxide /Copper Metal Organic Framework. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.08.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Świrk K, Delahay G, Zaki A, Adil K, Cadiau A. Investigation of Mn Promotion on HKUST‐1 Metal‐Organic Frameworks for Low‐Temperature Selective Catalytic Reduction of NO with NH
3. ChemCatChem 2021. [DOI: 10.1002/cctc.202100431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Abdelali Zaki
- ICGM, Univ. Montpellier, CNRS, ENSCM Montpellier France
| | - Karim Adil
- ICGM, Univ. Montpellier, CNRS, ENSCM Montpellier France
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Siew WY, Abu Bakar NHH, Abu Bakar M, Zainal Abidin A. Influence of various Cu/Fe ratios on the surface properties of green synthesized Cu-Fe-BTC and it`s relation to methylene blue adsorption. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125846. [PMID: 34492799 DOI: 10.1016/j.jhazmat.2021.125846] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 06/13/2023]
Abstract
The incorporation of different percentages of Fe2+ into copper benzene-1,3,5-tricarboxylate (CuBTC) was successfully carried out at room-temperature synthesis with water as the only solvent. The XRD and XPS analysis shows that the Fe2+ were substituted into the paddlewheel structure. The incorporation of 18% Fe2+ into CuBTC can increase the surface area and porosity of the framework. The BET surface area of Cu82Fe18BTC (1240 m2/g) was significantly higher than CuBTC (708 m2/g). Further increase in the Fe2+ percentage will reduce the surface area of the compound. The presence of Fe2+ in the framework successfully disturbs the pore formation and widens the pore size on the surface of these compounds. This as well as the pHpzc, which is related to the surface acidity of the resulting bimetallic organic framework (BMOF), play an important role in the adsorption process. Cu53Fe47BTC with an adsorption capacity of 94.42 mg/g shows approximately 6 times greater adsorption capacity against MB compared to CuBTC. This shows that by utilizing a different ratio of Cu and a second metal, it is possible to effectively design the surface morphology of BMOF for specific applications.
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Affiliation(s)
- W Y Siew
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - N H H Abu Bakar
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia.
| | - M Abu Bakar
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - A Zainal Abidin
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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Li H, Yang Z, Lu S, Su L, Wang C, Huang J, Zhou J, Tang J, Huang M. Nano-porous bimetallic CuCo-MOF-74 with coordinatively unsaturated metal sites for peroxymonosulfate activation to eliminate organic pollutants: Performance and mechanism. CHEMOSPHERE 2021; 273:129643. [PMID: 33497983 DOI: 10.1016/j.chemosphere.2021.129643] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/03/2021] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
The importance of clean water resources for maintaining sustainable development of society is self-evident. In this study, bimetallic metal-organic framework (CuCo-MOF-74) was synthesized and characterized by XRD, FT-IR, SEM, TEM, BET, and XPS techniques. The structural analysis results revealed that CuCo-MOF-74 was nano-porous materials with coordinatively unsaturated metal sites. With the addition of PMS, Cu1Co1-MOF-74 exhibited high activity for methylene blue (MB) removal (100% degradation) within 30 min under low 50 mg/L catalyst dosage. The effects of catalyst dosage, PMS dosage, MB concentration, initial pH, and common anions were evaluated. Quenching reactions and EPR studies revealed the coexistence of sulfate radical (SO4•-), hydroxyl radical (·OH), and singlet oxygen (1O2), which was attributed to the potential in-situ recycling of cobalt and copper species (Co(III)→Co(II), Cu(II)→Cu(I))). Fukui index (f0) and dual descriptor (Δf) by Density functional theory (DFT) calculations were applied to predict the most reactive sites of MB. Meanwhile, the possible degradation pathway of MB was proposed with the help of oxidative intermediates identified by UPLC-MS.
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Affiliation(s)
- Huanxuan Li
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China.
| | - Zongxiang Yang
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Shun Lu
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Liya Su
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Chunhui Wang
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Jingang Huang
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Jie Zhou
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Junhong Tang
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China.
| | - Mingzhi Huang
- School of Environment, South China Normal University, Guangzhou, 510006, China
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Tandem micellar catalysis and cloud point extraction process for C-S coupling reaction in water. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Gopi S, Perumal S, Al Olayan EM, AlAmri OD, Aloufi AS, Kathiresan M, Yun K. 2D Trimetal-organic framework derived metal carbon hybrid catalyst for urea electro-oxidation and 4-nitrophenol reduction. CHEMOSPHERE 2021; 267:129243. [PMID: 33338721 DOI: 10.1016/j.chemosphere.2020.129243] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 11/28/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
Because of the abundance of transition metals, their enhanced electrochemical/chemical efficiency on par with the benchmark catalysts, long-term stability, etc., the expansion of transition metal/metal oxide-based electrocatalysts for oxygen evolution, urea oxidation reactions and 4-nitrophenol reduction becomes indispensable. In particular, the abundant availability along with improved electrochemical performance is crucial for fuel cell applications when it comes to large scale commercialization. In this work, we report the synthesis of a trimetallic metal-organic framework based on Ni, Co and Zn using BTC as a linker and the preparation of its metal oxide - carbon composites at different temperatures, 600, 700 and 800 °C (TM-MOF-600, TM-MOF-700, and TM-MOF-800) by carbonization under an inert atmosphere. The PXRD pattern of TM-MOF complemented well with the simulated XRD patterns of Co-Ni-BTC MOF as well as Zn-BTC MOF, whereas the PXRD pattern of the carbonized samples indicated the presence of three types of metal oxides i.e., CoO, NiO, and ZnO. TEM indicated spherical morphology of TM-MOF, upon calcination, an irregular agglomeration occurred and the average particle size was found to be 60-110 nm. The as-prepared TM-MOF and its carbon composites were tested for their electrocatalytic as well as catalytic activities towards oxygen evolution, urea oxidation and 4-nitrophenol reduction reactions. Electrochemical results indicate the better performance of TM-MOF-800 in both OER and UOR reactions with an onset potential of 1.66 V (OER) and 1.37 V (UOR) at a current density of 10 mA cm-2. The long-term stability of these catalysts under alkaline conditions indicates excellent stability. Besides, the urea electrolyzed products were analyzed by gas chromatography to get clear insights on the formed products. Catalytic reduction of 4-nitrophenol in the presence of excess NaBH4 showed excellent conversion to 4-amino phenol in short duration.
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Affiliation(s)
- Sivalingam Gopi
- Department of BioNano Technology, Gachon University, GyeongGi -Do, 13120, Republic of Korea; CSIR - Central Electrochemical Research Institute, Karaikudi, 630003, Tamil Nadu, India
| | - Silambarasan Perumal
- Department of Chemical Engineering, Sunchon National University, #255 Jungang-ro, Suncheon-si, Jeollanam-do, 57922, Republic of Korea
| | - Ebtesam M Al Olayan
- Department of Zoology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Ohoud D AlAmri
- Department of Zoology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Abeer S Aloufi
- Department of Zoology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia; The research chair of vaccines for infectious disease - Deanship of scientific research - King Saud University, Riyadh, 11451, Saudi Arabia
| | - Murugavel Kathiresan
- CSIR - Central Electrochemical Research Institute, Karaikudi, 630003, Tamil Nadu, India.
| | - Kyusik Yun
- Department of BioNano Technology, Gachon University, GyeongGi -Do, 13120, Republic of Korea.
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Li H, Xu S, Du J, Tang J, Zhou Q. Cu@Co-MOFs as a novel catalyst of peroxymonosulfate for the efficient removal of methylene blue. RSC Adv 2019; 9:9410-9420. [PMID: 35520731 PMCID: PMC9062116 DOI: 10.1039/c9ra01143a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 03/11/2019] [Indexed: 11/21/2022] Open
Abstract
In this study, for the first time, we describe the single step synthesis of a Cu particle-doped cobalt-based metal-organic framework (Cu@Co-MOF) using a hydrothermal method. The as-prepared materials were characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy-energy disperse spectroscopy, thermogravimetry, and X-ray photoelectron spectroscopy, which confirmed the incorporation of zero-valent copper on the surface of the Co-MOFs. The heterogeneous catalytic activity of Cu@Co-MOFs was tested to activate peroxymonosulfate (PMS) for the removal of methylene blue (MB). The ratio of n(Cu)/n(Co) in the Cu@Co-MOFs showed a strong impact on the catalytic activity of the Cu@Co-MOFs, whereas a n(Cu)/n(Co) of 1 : 1 exhibited the best catalytic performance and obtained 100% MB removal within 30 min. The effects of initial pH, reaction temperature, PMS concentration, and catalyst dosages were investigated in this study. The stability and reusability of the Cu@Co-MOFs were also investigated. The results showed a low decline in the MB removal with the increase in cycle numbers, whereas 100% MB was removed by prolonging the reaction time. Heterogeneous reactions taking place in the pores and surface of the Cu@Co-MOFs played an important role in the generation of the sulfate radicals (SO4˙-) and hydroxyl radicals (·OH) that were the primary reactive species responsible for MB degradation.
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Affiliation(s)
- Huanxuan Li
- Hangzhou Dianzi University, College Materials & Environmental Engineering Hangzhou 310018 Zhejiang PR 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 Center Guangzhou 510006 PR China
| | - Shaodan Xu
- Hangzhou Dianzi University, College Materials & Environmental Engineering Hangzhou 310018 Zhejiang PR China
| | - Jia Du
- Hangzhou Dianzi University, College Materials & Environmental Engineering Hangzhou 310018 Zhejiang PR China
| | - Junhong Tang
- Hangzhou Dianzi University, College Materials & Environmental Engineering Hangzhou 310018 Zhejiang PR China
| | - Qingwei Zhou
- Hangzhou Dianzi University, College Materials & Environmental Engineering Hangzhou 310018 Zhejiang PR China
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