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Ren Y, Liu C, Ji C, Lai B, Zhang W, Li J. Selective oxidation decontamination in cobalt molybdate activated Fenton-like oxidation via synergic effect of cobalt and molybdenum. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134639. [PMID: 38772113 DOI: 10.1016/j.jhazmat.2024.134639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/01/2024] [Accepted: 05/16/2024] [Indexed: 05/23/2024]
Abstract
In this study, cobalt molybdate (CoMoO4) activated peracetic acid (PAA) was developed for water purification. CoMoO4/PAA system could remove 95% SMX with pseudo-first-order reaction rate constant of 0.15410 min-1, which was much higher than CoFe2O4/PAA, FeMoO4/PAA, and CoMoO4/persulfate systems. CoMoO4/PAA system follows a non-radical species pathway dominated by the high-valent cobalt (Co(IV)), and CH3C(O)OO• shows a minor contribution to decontamination. Density functional theory (DFT) calculation indicates that the generation of Co(IV) is thermodynamically more favorable than CH3C(O)OO• generation. The abundant Co(IV) generation was attributed to the special structure of CoMoO4 and effect of molybdenum on redox cycle of Co(II)/Co(III). DFT calculation showed that the atoms of SMX with higher ƒ0 and ƒ- values are the main attack sites, which are in accordance with the results of degradation byproducts. CoMoO4/PAA system can effectively reduce biological toxicity after the reaction. Benefiting from the selective of Co(IV) and CH3C(O)OO•, the established CoMoO4/PAA system exhibits excellent anti-interference capacity and satisfactory decontamination performance under actual water conditions. Furthermore, the system was capable of good potential practical application for efficient removal of various organics and favorable reuse. Overall, this study provides a new strategy by CoMoO4 activated PAA for decontamination with high efficiency, high selectivity and favorable anti-interference.
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Affiliation(s)
- Yi Ren
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China
| | - Chao Liu
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China
| | - Chenghan Ji
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Bo Lai
- Department of Environmental Science and Engineering, School of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Weiming Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Jun Li
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China.
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Nandana E, Dwivedi AH, Nidheesh PV. Role of biochar in superoxide-dominated dye degradation in catalyst-activated peroxymonosulphate process. CHEMOSPHERE 2024; 356:141945. [PMID: 38599333 DOI: 10.1016/j.chemosphere.2024.141945] [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: 12/04/2023] [Revised: 03/05/2024] [Accepted: 04/06/2024] [Indexed: 04/12/2024]
Abstract
In recent times, the application of biochar (BC) as an upcoming catalyst for the elimination of recalcitrant pollutants has been widely explored. Here, an iron loaded bamboo biochar activated peroxymonosulphate (PMS) process was tested for removing Congo red (CR) dye from water medium. The catalyst was synthesized using a green synthesis method using neem extracts and characterized using SEM, FTIR, and XRD. The effects of various operating parameters, including solution pH, catalyst dosage, and pollutant dosage, on dye degradation efficiency were examined. The results showed that at the optimized conditions of 300 mg L-1 PMS concentration, 200 mg L-1 catalyst dosage, and pH 6, about 89.7% of CR dye (initial concentration 10 ppm) was removed at 60 min of operation. Scavenging experiments revealed the significant contribution of O2•-, •OH, and 1O2 for dye degradation, with a major contribution of O2•-. The activation of PMS was mainly done by biochar rather than iron (loaded on biochar). The catalyst was highly active even after four cycles.
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Affiliation(s)
- E Nandana
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440020, India; Sacred Heart College, Thevara, Kochi, 682013, India
| | - Anand Harsh Dwivedi
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440020, India
| | - P V Nidheesh
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440020, India.
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Manzoor S, Aziz K, Raza H, Manzoor S, Khan MI, Naz A, Shanableh A, A M Salih A, Elboughdiri N. Tailoring Vanadium-Based Magnetic Catalyst by In Situ Encapsulation of Tungsten Disulfide and Applications in Abatement of Multiple Pollutants. ACS OMEGA 2023; 8:48966-48974. [PMID: 38162758 PMCID: PMC10753748 DOI: 10.1021/acsomega.3c06580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 01/03/2024]
Abstract
A magnetic nanocomposite of tungsten and vanadium was employed as a catalyst for the mitigation of water contaminants, including a carcinogenic dye (Congo red, CR), a widely used pesticide (glyphosate), and the bacterial strain Escherichia coli. Additionally, it was subjected to several characterization techniques. X-ray diffraction spectroscopy examination validated the synthesized nanoparticles' crystalline nature, and scanning electron microscopy and energy-dispersive X-ray analysis were employed to examine the morphology and elemental composition of the catalyst. The use of thermogravimetric analysis enabled the elaboration of the thermal behavior of tungsten sulfide-vanadium decorated with Fe2O3 nanoparticles. The experiments were conducted under visible light conditions. The highest levels of photodegradation of 96.24 ± 2.5% for CR and 98 ± 1.8% for glyphosate were observed following a 180 min exposure to visible light at pH values of 6 and 8, respectively. The quantum yields for CR and Gly were calculated to be 9.2 × 10-3 and 4.9 × 10-4 molecules photon-1, respectively. The findings from the scavenger analysis suggest the involvement of hydroxyl radicals in the degradation mechanism. The study evaluated the inhibition of E. coli growth when exposed to a concentration of 0.1 g/10 mL of the photocatalyst, utilizing a 1 mL sample of the bacterial strain. The successful elimination of CR and glyphosate from water-based solutions, along with the subsequent antibacterial experiments, has substantiated the efficacy of the photocatalyst in the field of environmental remediation.
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Affiliation(s)
- Suryyia Manzoor
- Institute
of Chemical Sciences, Bahauddin Zakariya
University, Multan 60000, Pakistan
| | - Khalid Aziz
- Institute
of Chemical Sciences, Bahauddin Zakariya
University, Multan 60000, Pakistan
| | - Hina Raza
- Faculty
of Pharmacy, Bahauddin Zakariya Unviersity, Multan 60000, Pakistan
| | - Shamaila Manzoor
- Department
of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina, Bratislava 842 48, Slovakia
| | - Muhammad Imran Khan
- Research
Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah 27272, United Arab
Emirates
| | - Asma Naz
- Institute
of Chemical Sciences, Bahauddin Zakariya
University, Multan 60000, Pakistan
| | - Abdallah Shanableh
- Research
Institute of Sciences and Engineering (RISE), University of Sharjah, Sharjah 27272, United Arab
Emirates
| | - Alsamani A M Salih
- Chemical
Engineering Department, College of Engineering, University of Ha’il, P.O. Box
2440, Ha’il 81441, Saudi Arabia
- Department
of Chemical Engineering, Faculty of Engineering, Al Neelain University, Khartoum 12702, Sudan
| | - Noureddine Elboughdiri
- Chemical
Engineering Department, College of Engineering, University of Ha’il, P.O. Box
2440, Ha’il 81441, Saudi Arabia
- Chemical
Engineering Process Department, National School of Engineers Gabes, University of Gabes, Gabes 6029, Tunisia
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Abd El-Monaem EM, Al Harby N, Batouti ME, Eltaweil AS. Enhanced Redox Cycle of Rod-Shaped MIL-88A/SnFe 2O 4@MXene Sheets for Fenton-like Degradation of Congo Red: Optimization and Mechanism. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:54. [PMID: 38202509 PMCID: PMC10780543 DOI: 10.3390/nano14010054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024]
Abstract
This study intended to fabricate a novel Fenton-like catalyst by supporting the rod-like MIL-88A and the magnetic tin ferrite nanoparticles (SnFe2O4) on the MXene sheets (MIL-88A/SnFe2O4@MXene). The well fabrication and determination of the MIL-88A/SnFe2O4@MXene properties were investigated using SEM, XPS, VSM, Zeta potential, XRD, and FTIR tools. The Fenton-like degradation reaction of CR by MIL-88A/SnFe2O4@MXene was thoroughly studied to identify the optimal proportions of the catalyst components, the impact of CR and H2O2 concentrations, as well as the effect of raising the temperature and the pH medium of the catalytic system and the catalyst dosage. Kinetics studies were executed to analyze the decomposition of CR and H2O2 using First-order and Second-order models. Furthermore, the degradation mechanism was proposed based on the scavenging test that proceeded in the presence of chloroform and t-butanol, in addition to the XPS analysis that clarified the participation of the containing metal species: Fe, Sn, and Ti, and the formation of a continual redox cycle. The obtained intermediates during the CR degradation were defined by GC-MS. A recyclability test was performed on MIL-88A/SnFe2O4@MXene during five runs of the Fenton-like degradation of CR molecules. Finally, the novel MIL-88A/SnFe2O4@MXene Fenton-like catalyst could be recommended as a propitious heterogeneous catalyst with a continuous redox cycle and a recyclability merit.
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Affiliation(s)
- Eman M. Abd El-Monaem
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21934, Egypt; (E.M.A.E.-M.); (M.E.B.); (A.S.E.)
| | - Nouf Al Harby
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
| | - Mervette El Batouti
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21934, Egypt; (E.M.A.E.-M.); (M.E.B.); (A.S.E.)
| | - Abdelazeem S. Eltaweil
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21934, Egypt; (E.M.A.E.-M.); (M.E.B.); (A.S.E.)
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Sultanate of Oman
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Zhang G, Lu C, Li C, Li S, Zhao X, Nie K, Wang J, Feng K, Zhong J. CoMoO 4-modified hematite with oxygen vacancies for high-efficiency solar water splitting. Phys Chem Chem Phys 2023; 25:13410-13416. [PMID: 37161656 DOI: 10.1039/d3cp01192e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Hematite is a potential photoelectrode for photoelectrochemical (PEC) water splitting. Nevertheless, its water oxidation efficiency is highly limited by its significant photogenerated carrier recombination, poor conductivity and slow water oxidation kinetics. Herein, under low-vacuum (LV) conditions, we fabricated a CoMoO4 layer on oxygen-vacancy-modified hematite (CoMo-Fe2O3 (LV)) for the first time for efficient solar water splitting. The existence of oxygen vacancies can significantly facilitate the electrical conductivity, while the large onset potential along with oxygen vacancies can be lowered by the CoMoO4 with accelerated water oxidation kinetics. Therefore, a high photocurrent density of 3.53 mA cm-2 at 1.23 VRHE was obtained for the CoMo-Fe2O3 (LV) photoanode. Moreover, it can be further coupled with the FeNiOOH co-catalyst to reach a benchmark photocurrent of 4.18 mA cm-2 at 1.23 VRHE, which is increased around 4-fold compared with bare hematite (0.90 mA cm-2). The combination of CoMoO4, FeNiOOH, and oxygen vacancies may be used as a reasonable strategy for developing high-efficiency hematite-based photoelectrodes for solar water oxidation.
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Affiliation(s)
- Gaoteng Zhang
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
| | - Cheng Lu
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
| | - Chang Li
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
| | - Shuo Li
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
| | - Xiaoquan Zhao
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
| | - Kaiqi Nie
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaou Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Kun Feng
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
| | - Jun Zhong
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
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Synthesis of Green Magnetite/Carbonized Coffee Composite from Natural Pyrite for Effective Decontamination of Congo Red Dye: Steric, Synergetic, Oxidation, and Ecotoxicity Studies. Catalysts 2023. [DOI: 10.3390/catal13020264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Green magnetite/carbonized spent coffee (MG/CFC) composite was synthesized from natural pyrite and characterized as an adsorbent and catalyst in photo-Fenton’s oxidation system of Congo red dye (C.R). The absorption behavior was illustrated based on the steric and energetic parameters of the advanced Monolayer equilibrium model of one energetic site (R2 > 0.99). The structure exhibits 855 mg/g as effective site density which induces its C.R saturation adsorption capacity to 436.1 mg/g. The change in the number of absorbed C.R per site with temperature (n = 1.53 (293) to 0.51 (313 K)) suggests changes in the mechanism from multimolecular (up to 2 molecules per site) to multianchorage (one molecule per more than one site) processes. The energetic studies (ΔE = 6.2–8.2 kJ/mol) validate the physical uptake of C.R by MG/CFC which might be included van der Waals forces, electrostatic attractions, and hydrogen bonding. As a catalyst, MG/CFC exhibits significant activity during the photo-Fenton’s oxidation of C.R under visible light. The complete oxidation of C.R was detected after 105 min (5 mg/L), 120 min (10 mg/L), 135 min (15 mg/L), 180 min (20 mg/L), and 240 min (25 mg/L) using MG/CFC at 0.2 g/L dosage and 0.1 mL of H2O2. Increasing the dosage up to 0.5 g/L reduce the complete oxidation interval of C.R (5 mg/L) down to 30 min while the complete mineralization was detected after 120 min. The acute and chronic toxicities of the treated samples demonstrate significant safe products of no toxic effects on aquatic organisms as compared to the parent C.R solution.
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