1
|
Abdel Azim E, Samy M, Hanafy M, Mahanna H. Novel mint-stalks derived biochar for the adsorption of methylene blue dye: Effect of operating parameters, adsorption mechanism, kinetics, isotherms, and thermodynamics. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 357:120738. [PMID: 38574710 DOI: 10.1016/j.jenvman.2024.120738] [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: 12/16/2023] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 04/06/2024]
Abstract
The pyrolysis of mint stalks and lemon peels was performed to synthesize mint-stalks (MBC) and lemon-peels (LBC) derived biochars for adsorbing methylene blue (MB). The preparation, characterization, and application of MBC in adsorption have not been reported in the literature. MBC showed higher surface area and carbon content than that of LBC. The removal ratios of MB were 87.5% and 60% within 90 min for MBC and LBC, respectively at pH 7, temperature of 30oC, adsorbent dose of 0.5 g/L, and MB concentration of 5 mg/L. The optimal MBC dose was 1 g/L achieving a removal efficiency of 93.6% at pH 7, temperature of 30oC, contact time of 90 min, and initial dye concentration of 5.0 mg/L. The adsorption efficiency decreased from 98.6% to 31.33% by raising the dye concentration from 3.0 mg/L to 30 mg/L. Further, the increase of adsorbent dose to 10 g/L could achieve 94.2%, 90.3%, 87.6%, and 84.1% removal efficiencies of MB in the case of initial concentrations of 200 mg/L, 300 mg/L, 400 mg/L, and 500 mg/L, respectively. MBC showed high stability in adsorbing MB under five cycles, and the performed analyses after adsorption reaffirmed the stability of MBC. The adsorption mechanism indicated that the adsorption of MB molecules on the biochar's surface was mainly because of the electrostatic interaction, hydrogen bonding, and π-π stacking. Pseudo-second-order and Langmuir models could efficiently describe the adsorption of MB on the prepared biochar. The adsorption process is endothermic and spontaneous based on the adsorption thermodynamics. The proposed adsorption system is promising and can be implemented on a bigger scale. Moreover, the prepared biochar can be implemented in other applications such as photocatalysis, periodate, and persulfate activation-based advanced oxidation processes.
Collapse
Affiliation(s)
- Eman Abdel Azim
- Environmental Engineering, Management and Technology, Faculty of Engineering, Mansoura University, Mansoura, 35516, Egypt.
| | - Mahmoud Samy
- Public Works Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, 35516, Egypt.
| | - Mahmoud Hanafy
- Engineering Mathematics and Physics Department, Faculty of Engineering, Mansoura University, Mansoura, 35516, Egypt.
| | - Hani Mahanna
- Public Works Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, 35516, Egypt.
| |
Collapse
|
2
|
Al-Mushki AAA, Ahmed AAA, Abdulwahab AM, Qaid SAS, Alzayed NS, Shahabuddin M, Abduljalil JMA, Saad FAA. Effect of the molar ratio of (Ni 2+ and Fe 3+) on the magnetic, optical and antibacterial properties of ternary metal oxide CdO-NiO-Fe 2O 3 nanocomposites. Sci Rep 2023; 13:9021. [PMID: 37270550 DOI: 10.1038/s41598-023-36262-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023] Open
Abstract
In this work, the effect of the molar ratio of (Ni2+ and Fe3+) on the properties of CdO-NiO-Fe2O3 nanocomposites was investigated. The synthesis of CdO-NiO-Fe2O3 nanocomposites was carried out by self-combustion. XRD, UV-Vis, PL and VSM were used to describe the physical properties of the materials. The results showed significant progress in structural and optical properties supporting antibacterial activity. For all samples, the particle size decreased from 28.96 to 24.95 nm with increasing Ni2+ content and decreasing Fe3+ content, as shown by the XRD pattern, which also shows the crystal structure of cubic CdO, cubic NiO, and cubic γ-Fe2O3 spinel. The Ni2+ and Fe3+ contents in the CdO-NiO-Fe2O3 nanocomposites have also been shown to enhance the ferromagnetic properties. Due to the significant coupling between Fe2O3 and NiO, the coercivity Hc values of the samples increase from 66.4 to 266 Oe. The potential of the nanocomposites for antibacterial activity was investigated against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa, Escherichia coli, and Moraxella catarrhalis) bacteria. Comparison of P. aeruginosa with E. coli, S. aureus and M. catarrhalis showed that it has a stronger antibacterial activity with a ZOI of 25 mm.
Collapse
Affiliation(s)
- Asma A A Al-Mushki
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Abdullah A A Ahmed
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen.
| | - A M Abdulwahab
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Salem A S Qaid
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Nasser S Alzayed
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mohammed Shahabuddin
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Jameel M A Abduljalil
- Department of Biology, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Fuad A A Saad
- Department of Biology, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| |
Collapse
|
3
|
Nagore PB, Ghoti AJ, Salve AP, Mane KG. Antimicrobial and Detoxification Study of Novel Luminescent CuO Nanoparticles Synthesized by White Garland Lily Leaves Extract. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-022-01035-4] [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]
|
4
|
Zhou M, Ji C, Ji F, Chen M, Zhong Z, Xing W. Micro-Octahedron Cu 2O-Based Photocatalysis-Fenton for Organic Pollutant Degradation: Proposed Coupling Mechanism in a Membrane Reactor. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ming Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Specialized Separation Membranes, Nanjing Tech University, Nanjing 210009, China
| | - Cuiyue Ji
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Specialized Separation Membranes, Nanjing Tech University, Nanjing 210009, China
| | - Fangfang Ji
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Specialized Separation Membranes, Nanjing Tech University, Nanjing 210009, China
| | - Min Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Specialized Separation Membranes, Nanjing Tech University, Nanjing 210009, China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Specialized Separation Membranes, Nanjing Tech University, Nanjing 210009, China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Specialized Separation Membranes, Nanjing Tech University, Nanjing 210009, China
| |
Collapse
|
5
|
Abstract
An electro-Fe2+-activated peracetic acid (EC/Fe2+/PAA) process was established for organic dye removal in water. The operation factors such as the PAA dosage, Fe2+ amount, current density, and pH were investigated on methylene blue (MB) removal for the synergistic EC/Fe2+/PAA system. Efficient MB decolorization (98.97% and 0.06992 min−1) was achieved within 30 min under 5.4 mmol L−1 PAA, 30 μmol L−1 Fe2+, 15 mA cm−2 current intensity, and pH 2.9. Masking tests affirmed that the dominating radicals were hydroxyl radicals (OH), organic radicals (CH3CO2·, CH3CO3·), and singlet oxygen (1O2), which were generated from the activated PAA by the synergetic effect of EC and Fe2+. The influence of inorganic ions and natural organic matter on the MB removal was determined. Moreover, the efficacy of the EC/Fe2+/PAA was confirmed by decontaminating other organic pollutants, such as antibiotic tetracycline and metronidazole. The studied synergy process offers a novel, advanced oxidation method for PAA activation and organic wastewater treatment.
Collapse
|
6
|
Shi H, Ban C, Dai C, Li C, Zhou X, Xia R, Qian J, Cao M. Glutathione-depletion reinforced enzyme catalytic activity for photothermal assisted bacterial killing by hollow mesoporous CuO. J Mater Chem B 2022; 10:8883-8893. [DOI: 10.1039/d2tb01621d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hollow mesoporous CuO nanozyme with GSH-depletion enhanced the enzyme catalytic activity for photothermal-assisted bacterial killing.
Collapse
Affiliation(s)
- Hanzhu Shi
- Anhui Academy of Medical sciences, Hefei, 230061, P. R. China
| | - Chengyang Ban
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, P. R. China
| | - Chenwei Dai
- Anhui Academy of Medical sciences, Hefei, 230061, P. R. China
| | - Chengwang Li
- Anhui Academy of Medical sciences, Hefei, 230061, P. R. China
| | - Xiuhong Zhou
- Anhui Academy of Medical sciences, Hefei, 230061, P. R. China
| | - Ru Xia
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, P. R. China
| | - Jiasheng Qian
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, P. R. China
| | - Ming Cao
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, P. R. China
| |
Collapse
|