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Naggar AH, Seaf-Elnasr TA, Thabet M, El-Monaem EMA, Chong KF, Bakr ZH, Alsohaimi IH, Ali HM, El-Nasser KS, Gomaa H. A hybrid mesoporous composite of SnO 2 and MgO for adsorption and photocatalytic degradation of anionic dye from a real industrial effluent water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:108247-108262. [PMID: 37747604 DOI: 10.1007/s11356-023-29649-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/29/2023] [Indexed: 09/26/2023]
Abstract
Water pollution by synthetic anionic dyes is one of the most critical ecological concerns and challenges. Therefore, there is an urgent need to find an efficient adsorbent and photocatalyst for dye removal. In the present study, we aimed to fabricate a hybrid mesoporous composite of spongy sphere-like SnO2 and three-dimensional (3D) cubic-like MgO (SnO2/MgO) as a promising adsorbent/photocatalyst to remove the anionic sunset yellow (SSY) dye from real wastewater at neutral pH conditions. The as-synthesized SnO2 and MgO composite was investigated using XRD, SEM, EDX, TEM, XPS, BET, and zeta potential. The experimental study of the SSY removal using SnO2/MgO composite was performed at different conditions, such as pH, stirring time, dose, and temperature. More than 99% of 10 mg/L SSY was effectively adsorbed from aqueous solution using 40 mg of SnO2/MgO composite at pH 7 and a stirring time of 60 min. The SSY adsorption behavior was well fitted by pseudo-second order and the Langmuir model, indicating that the SSY was chemisorbed to the composite-active sites as a monolayer. On the other hand, photocatalytic degradation process exhibited better results in terms of speed of removal and used quantity of photocatalyst, where 20 mg of SnO2/MgO composite can be used to remove > 99% of SSY dye within 30 min. Mechanism of SSY adsorption and photocatalytic degradation was discussed. In addition, elution experiments demonstrated that the SnO2/MgO composite as an SSY adsorbent could be reused for nine cycles without considerable reduction in the SSY adsorption efficiency. Therefore, this work exhibited that the mesoporous SnO2/MgO composite can be considered an effective adsorbent/photocatalyst to remove SSY dye from real industrial effluent water at neutral pH conditions.
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Affiliation(s)
- Ahmed H Naggar
- Department of Chemistry, College of Science and Arts, Jouf University, Al Qurayyat, 75911, Kingdom of Saudi Arabia
| | - Tarek A Seaf-Elnasr
- Department of Chemistry, College of Science, Jouf University, P.O. Box 2014, Sakaka, Aljouf, Kingdom of Saudi Arabia.
| | - Mahmoud Thabet
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt
| | - Eman M Abd El-Monaem
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Kwok F Chong
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, 26300, Kuantan, Gambang, Malaysia
| | - Zinab H Bakr
- Physics Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Ibrahim H Alsohaimi
- Department of Chemistry, College of Science, Jouf University, P.O. Box 2014, Sakaka, Aljouf, Kingdom of Saudi Arabia
| | - Hazim M Ali
- Department of Chemistry, College of Science, Jouf University, P.O. Box 2014, Sakaka, Aljouf, Kingdom of Saudi Arabia
- Forensic Chemistry Department, Forensic Medicine Authority, Cairo, Egypt
| | - Karam S El-Nasser
- Department of Chemistry, College of Science and Arts, Jouf University, Al Qurayyat, 75911, Kingdom of Saudi Arabia
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt
| | - Hassanien Gomaa
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300401, China
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Eltaweil AS, Bakr SS, Abd El-Monaem EM, El-Subruiti GM. Magnetic hierarchical flower-like Fe 3O 4@ZIF-67/CuNiMn-LDH catalyst with enhanced redox cycle for Fenton-like degradation of Congo red: optimization and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27430-2. [PMID: 37219772 DOI: 10.1007/s11356-023-27430-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 05/01/2023] [Indexed: 05/24/2023]
Abstract
A novel flower-like CuNiMn-LDH was synthesized and modified, to obtain a promising Fenton-like catalyst, Fe3O4@ZIF-67/CuNiMn-LDH, with a remarkable degradation of Congo red (CR) utilizing H2O2 oxidant. The structural and morphological characteristics of Fe3O4@ZIF-67/CuNiMn-LDH were analyzed via FTIR, XRD, XPS, SEM-EDX, and SEM spectroscopy. In addition, the magnetic property and the surface's charge were defined via VSM and ZP analysis, respectively. Fenton-like experiments were implemented to investigate the aptness conditions for the Fenton-like degradation of CR; pH medium, catalyst dosage, H2O2 concentration, temperature, and the initial concentration of CR. The catalyst exhibited supreme degradation performance for CR to reach 90.9% within 30 min at pH 5 and 25 °C. Moreover, the Fe3O4@ZIF-67/CuNiMn-LDH/H2O2 system revealed considerable activity when tested for different dyes since the degradation efficiencies of CV, MG, MB, MR, MO, and CR were 65.86, 70.76, 72.56, 75.54, 85.99, and 90.9%, respectively. Furthermore, the kinetic study elucidated that the CR degradation by the Fe3O4@ZIF-67/CuNiMn-LDH/H2O2 system obeyed pseudo-first-order kinetic model. More importantly, the concrete results deduced the synergistic effect between the catalyst components, producing a continuous redox cycle consisting of five active metal species. Eventually, the quenching test and the mechanism study proposed the predominance of the radical mechanism pathway on the Fenton-like degradation of CR by the Fe3O4@ZIF-67/CuNiMn-LDH/H2O2 system.
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Affiliation(s)
| | - Sara S Bakr
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Eman M Abd El-Monaem
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
| | - Gehan M El-Subruiti
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
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Mughal EU, Javaid A, Imran M, Abourehab MA, Elkaeed EB, Naeem N, Alzahrani AYA, Sadiq A, Kainat SF. Complexes of terpyridine scaffold as efficient photocatalysts for the degradation of methylene blue pollutant in wastewater effluents. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Yi Y, Guan Q, Wang W, Jian S, Li H, Wu L, Zhang H, Jiang C. Recyclable Carbon Cloth-Supported ZnO@Ag 3PO 4 Core-Shell Structure for Photocatalytic Degradation of Organic Dye. TOXICS 2023; 11:70. [PMID: 36668796 PMCID: PMC9866964 DOI: 10.3390/toxics11010070] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/07/2023] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
The extensive use of organic dyes in industry has caused serious environmental problems, and photocatalysis is a potential solution to water pollution by organic dyes. The practical application of powdery photocatalysts is usually limited by the rapid recombination of charge carriers and difficulty in recycling. In this study, recyclable carbon cloth-supported ZnO@Ag3PO4 composite with a core-shell structure was successfully prepared by solvothermal treatment and subsequent impregnation-deposition. The as-prepared carbon cloth-supported ZnO@Ag3PO4 composite showed an improved photocatalytic activity and stability for the degradation of rhodamine B (RhB), a model organic dye, under visible light irradiation. The decomposition ratio of RhB reached 87.1% after exposure to visible light for 100 min, corresponding to a reaction rate constant that was 4.8 and 15.9 times that of carbon cloth-supported Ag3PO4 or ZnO alone. The enhanced performance of the composite can be attributed to the effectively inhibited recombination of photoinduced electron-hole pairs by the S-scheme heterojunction. The carbon fibers further promoted the transfer of charges. Moreover, the carbon cloth-supported ZnO@Ag3PO4 can be easily separated from the solution and repeatedly used, demonstrating a fair recyclability and potential in practical applications.
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Affiliation(s)
- Yuan Yi
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Qifang Guan
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Wenguang Wang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Siyuan Jian
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Hengchao Li
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Liangpeng Wu
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
| | - Haiyan Zhang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Chuanjia Jiang
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin 300350, China
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Sobhy S, Elsenety MM, Mohamed MBI, Moustafa Y, Salama TM. Molecular dynamic simulations for interactions of oxytetracycline with copper(II)-exchanged NaY zeolite. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Efficient removal of noxious methylene blue and crystal violet dyes at neutral conditions by reusable montmorillonite/NiFe2O4@amine-functionalized chitosan composite. Sci Rep 2022; 12:15499. [PMID: 36109538 PMCID: PMC9478098 DOI: 10.1038/s41598-022-19570-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/31/2022] [Indexed: 11/08/2022] Open
Abstract
The jeopardy of the synthetic dyes effluents on human health and the environment has swiftly aggravated, threatening human survival. Hence, sustained studies have figured out the most acceptable way to eliminate this poisonous contaminant. Thereby, our investigation aimed to fabricate montmorillonite/magnetic NiFe2O4@amine-functionalized chitosan (MMT-mAmCs) composite as a promising green adsorbent to remove the cationic methylene blue (MB) and crystal violet (CV) dyes from the wastewater in neutral conditions. Interestingly, MMT-mAmCs composite carries high negative charges at a wide pH range from 4 to 11 as clarified from zeta potential measurements, asserting its suitability to adsorb the cationic contaminants. In addition, the experimental study confirmed that the optimum pH to adsorb both MB and CV was pH 7, inferring the ability of MMT-mAmCs to adsorb both cationic dyes in simple process conditions. Furthermore, the ferromagnetic behavior of the MMT-mAmCs composite is additional merit to our adsorbent that provides facile, fast, and flawless separation. Notably, the as-fabricated composite revealed an auspicious adsorbability towards the adsorptive removal of MB and CV, since the maximum adsorption capacity of MB and CV were 137 and 118 mg/g, respectively. Moreover, the isotherm and kinetic investigatins depicted that the adsorption of both cationic dyes fitted Langmuir and Pseudo 2nd order models, respectively. Besides, the advanced adsorbent preserved satisfactory adsorption characteristics with maximal removal efficacy exceeding 87% after reuse for ten consecutive cycles. More importantly, MMT-mAmCs efficiently adsorbed MB and CV from real agricultural water, Nile river water and wastewater samples at the neutral pH medium, reflecting its potentiality to be a superb reusable candidate for adsorptive removal cationic pollutants from their aquatic media.
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Eltaweil AS, Hashem OA, Abdel-Hamid H, Abd El-Monaem EM, Ayoup MS. Synthesis of a new magnetic Sulfacetamide-Ethylacetoacetate hydrazone-chitosan Schiff-base for Cr(VI) removal. Int J Biol Macromol 2022; 222:1465-1475. [PMID: 36113599 DOI: 10.1016/j.ijbiomac.2022.09.081] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/04/2022] [Accepted: 09/08/2022] [Indexed: 01/13/2023]
Abstract
In this study, a novel magnetic organic-inorganic composite was fabricated. Where, Chitosan, sulfacetamide and ethylacetoacetae were used to prepare a new Sulfacetamide-Ethylacetoacetate hydrazone-chitosan Schiff-base (SEH-CSB) with a variety of active sites that capable of forming coordinate covalent bonds with Cr(VI). This was followed by modification of the formed SHE-CSB with NiFe2O4 to obtain the magnetic Chitosan-Schiff-base (NiFe2O4@SEH-CSB). NiFe2O4@SEH-CSB was characterized using FTIR, zeta potential, SEM, VSM and XPS. Results clarified that SHE played a crucial role in the removal of Cr(VI). The removal of Cr(VI) on NiFe2O4@SEH-CSB was found to be more fitted to pseudo-2nd order kinetics model and Freundlich isotherm. Besides, the maximum adsorption capacity of NiFe2O4@SEH-CSB for Cr(VI) was found to be 373.61 mg/g. The plausible mechanism for the removal of Cr(VI) on NiFe2O4@SEH-CSB composite suggested coulombic interaction, outer-sphere complexation, ion-exchange, surface complexation and coordinate-covalent bond pathways. The magnetic property enabled easy recycling of NiFe2O4@SEH-CSB composite.
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Affiliation(s)
| | - Omar A Hashem
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Hamida Abdel-Hamid
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Eman M Abd El-Monaem
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mohammed Salah Ayoup
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
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Gomaa H, Hussein MA, Motawea MM, Aboraia AM, Cheira MF, Alotaibi MT, El-Bahy SM, Ali HM. A hybrid mesoporous CuO@barley straw-derived SiO2 nanocomposite for adsorption and photocatalytic degradation of methylene blue from real wastewater. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128811] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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