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Godwin J, Njimou JR, Abdus-Salam N, Adegoke HI, Panda PK, Tripathy BC, Maicaneanu SA. Nanosorbent based on coprecipitation of ZnO in goethite for competitive sorption of Cd(II)-Pb(II) and Cd(II)-Pb(II)-Ni(II) systems. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2024; 22:149-165. [PMID: 38887757 PMCID: PMC11180079 DOI: 10.1007/s40201-023-00882-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 09/25/2023] [Indexed: 06/20/2024]
Abstract
Amongst the various water pollutants, heavy metal ions require special attention because of their toxic nature and effects on humans and the environment. Preserving natural resources will have positive impacts on living conditions by reducing diseases and water treatment by nanotechnology is effective in solving this problem owing to the properties of nanomaterials. In this study, a goethite nanoparticle was prepared by hydrothermal method, while ZnO/goethite nanocomposite by co-precipitation was developed. The nanoparticles were characterized using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Transform Electron Microscopy (TEM), Thermogravimetric Differential Thermal Analysis (TGA-DTA), Dynamic Light Scattering (DLS), and Breunner-Emmet-Teller (BET) surface area analysis. The adsorption of Cd(II)-Pb(II) and Cd(II)-Pb(II)-Ni(II) ions systems on ZnO/goethite nanocomposite was investigated in a batch mode. The findings of the study showed that nanoparticles ZnO/goethite composite were mixed of spherical and rod-like shapes. The BET results revealed average particle sizes of 41.11 nm for nanoparticles for ZnO/goethite while TGA/DTA confirmed the stability of the adsorbents. The optimum adsorption capacities of the nanocomposite for Pb(II), Cd(II), and Ni(II) ions from the Pb-Cd-Ni ternary system were 415.5, 195.3, and 87.13 mg g-1, respectively. The adsorption isotherm data fitted well with the Langmuir isotherm model. The study concluded that the nanoparticle adsorbents are efficient for the remediation of toxic pollutants and are, therefore, recommended for wastewater treatment.
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Affiliation(s)
- John Godwin
- Department of Chemistry, Kogi State College of Education (Technical), P.O.B 242, Kabba, Nigeria
- Department of Chemistry, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
- Hydro & Electrometallurgy Department, Institute of Minerals and Materials Technology, Bhubaneswar, 751 013 India
| | - Jacques Romain Njimou
- School of Chemical Engineering and Mineral Industries, University of Ngaoundere, P. O Box 454, Ngaoundere, Cameroon
- Madia Department of Chemistry, Biochemistry, Physics, and Engineering, Kopchick College of Natural Science and Mathematics, Indiana University of Pennsylvania, Indiana, PA 15705 USA
| | | | | | - Prasanna Kumar Panda
- Hydro & Electrometallurgy Department, Institute of Minerals and Materials Technology, Bhubaneswar, 751 013 India
| | - Bankim Chandra Tripathy
- Hydro & Electrometallurgy Department, Institute of Minerals and Materials Technology, Bhubaneswar, 751 013 India
| | - Sanda Andrada Maicaneanu
- Madia Department of Chemistry, Biochemistry, Physics, and Engineering, Kopchick College of Natural Science and Mathematics, Indiana University of Pennsylvania, Indiana, PA 15705 USA
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Li C, Fu Y, Cheng H, Wang Y, Jia D, Liu H. Green and Low-Cost Modified Pisha Sandstone Geopolymer Gel Materials for Ecological Restoration: A Phase Review. Gels 2024; 10:302. [PMID: 38786219 PMCID: PMC11121281 DOI: 10.3390/gels10050302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024] Open
Abstract
Pisha sandstone (PS) is a special interbedded rock in the middle reaches of the Yellow River that experiences severe weathering and is loose and broken. Due to severe multiple erosion events, the Pisha sandstone region is called "the most severe water loss and soil erosion in the world" and "the ecological cancer of the earth". As a special pozzolanic mineral, PS has the potential to be used as precursors for the synthesis of green and low-carbon geopolymer gel materials and applied in ecological restoration. This paper aims to undertake a phase review of the precursors for geopolymer gel materials. The genesis and distribution, physical and chemical characterization, erosion characteristics, and advances in the ecological restoration of PS are all summarized. Furthermore, current advances in the use of PS for the synthesis of geopolymer gel materials in terms of mechanical properties and durability are discussed. The production of Pisha sandstone geopolymer gels through the binder jetting technique and 3D printing techniques is prospected. Meanwhile, the prospects for the resource application of PS in mine rehabilitation and sustainable ecology are discussed. In the future, multifactor-driven comprehensive measures should be further investigated in order to achieve ecological restoration of the Pisha sandstone region and promote high-quality development of the Yellow River Basin.
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Affiliation(s)
- Changming Li
- Key Laboratory of Ecological Environment Protection and Restoration in the Yellow River Basin of Henan Province, Zhengzhou 450045, China;
- School of Civil Engineering and Transportation, North China University of Water Resource and Electric Power, Zhengzhou 450045, China; (Y.F.); (H.C.); (Y.W.); (D.J.)
- International Joint Research Lab for Eco-Building Materials and Engineering of Henan, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
| | - Yubing Fu
- School of Civil Engineering and Transportation, North China University of Water Resource and Electric Power, Zhengzhou 450045, China; (Y.F.); (H.C.); (Y.W.); (D.J.)
| | - Haifeng Cheng
- School of Civil Engineering and Transportation, North China University of Water Resource and Electric Power, Zhengzhou 450045, China; (Y.F.); (H.C.); (Y.W.); (D.J.)
| | - Yaozong Wang
- School of Civil Engineering and Transportation, North China University of Water Resource and Electric Power, Zhengzhou 450045, China; (Y.F.); (H.C.); (Y.W.); (D.J.)
| | - Dongyang Jia
- School of Civil Engineering and Transportation, North China University of Water Resource and Electric Power, Zhengzhou 450045, China; (Y.F.); (H.C.); (Y.W.); (D.J.)
| | - Hui Liu
- Key Laboratory of Ecological Environment Protection and Restoration in the Yellow River Basin of Henan Province, Zhengzhou 450045, China;
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Ali S, Dayo M, Alahmadi S, Mohamed A. Chitosan-Supported ZnO Nanoparticles: Their Green Synthesis, Characterization, and Application for the Removal of Pyridoxine HCl (Vitamin B6) from Aqueous Media. Molecules 2024; 29:828. [PMID: 38398580 PMCID: PMC10892826 DOI: 10.3390/molecules29040828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/19/2023] [Accepted: 11/28/2023] [Indexed: 02/25/2024] Open
Abstract
A composite of chitosan-supported ZnO nanoparticles (ZnO/CS) was green-synthesized via an easy and cost-effective method using Chicory (Cichorium intybus) plant extract. The synthesis was confirmed using uv-vis spectrometry at a λmax of 380 nm, and the surface of the material was characterized via FT-IR spectroscopy, and finally via SEM, which confirmed the distribution of ZnO nanoparticles on the surface of chitosan biopolymer (CS). The synthesized material was applied in the adsorptive removal of residues of the pyridoxine hydrochloride (vitamin B6) pharmaceutical drug from aqueous media using the batch technique. The material's removal capacity was studied through several adjustable parameters including pH, contact time, the dose of the adsorbent, and the capacity for drug adsorption under the optimal conditions. Langmuir and Freundlich isotherms were applied to describe the adsorption process. The removal was found to obey the Freundlich model, which refers to a chemisorption process. Different kinetic models were also studied for the removal process and showed that the pseudo-second-order model was more fitted, which indicates that the removal was a chemisorption process. Thermodynamic studies were also carried out. The maximum removal of vitamin B6 by the nano-ZnO/CS composite was found to be 75% at optimal conditions. The results were compared to other reported adsorbents. Reusability tests showed that the nano-ZnO/CS composite can be efficiently reused up to seven times for the removal of PDX drugs from aqueous media.
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Affiliation(s)
- Samah Ali
- Chemistry Department, College of Science, Taibah University, Al-Madinah Al-Munawarah 42353, Saudi Arabia (S.A.)
- The National Organization for Drug Control and Research, Giza 12622, Egypt
| | - Marwa Dayo
- Chemistry Department, College of Science, Taibah University, Al-Madinah Al-Munawarah 42353, Saudi Arabia (S.A.)
| | - Sana Alahmadi
- Chemistry Department, College of Science, Taibah University, Al-Madinah Al-Munawarah 42353, Saudi Arabia (S.A.)
| | - Amr Mohamed
- Chemistry Department, College of Science, Taibah University, Al-Madinah Al-Munawarah 42353, Saudi Arabia (S.A.)
- The Higher Institute of Optics Technology (HIOT), Heliopolis, Cairo 17361, Egypt
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Gholami M, Souraki BA, Shomali A, Pendashteh A. Saline wastewater treatment by bioelectrochemical process (BEC) based on Al-electrocoagulation and halophilic bacteria: optimization using ANN with new approach. ENVIRONMENTAL TECHNOLOGY 2023:1-21. [PMID: 37640518 DOI: 10.1080/09593330.2023.2253365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/17/2023] [Indexed: 08/31/2023]
Abstract
ABSTRACTIn the present study, a bioelectrochemical reactor (BEC) was utilized to treat two types of real saline produced water (PW). BEC was designed based on the combination of electrocoagulation (EC) process with halophilic microorganisms, and it was assessed in terms of biodegradation of hydrocarbons. The effects of various operating parameters including the current density, electrical contact time (On/Off), hydraulic retention time (HRT), and total dissolved solids (TDS) at different levels on the chemical oxygen demand (COD) removal efficiency, settleability, and performance of isolated halophilic microorganisms were examined. Additionally, a novel neural network (ANN) approach modelling using adaptive factors was used to predict and optimize the effects and interactions between operating parameters during BEC process by predicting complicated mechanisms and variations associated with microorganisms. In addition, a new algorithm was developed for the sensitivity analysis to achieve the optimum operating conditions and obtain maximum efficiency in COD removal, sludge volume index (SVI), mixed liquor suspended solids (MLSS), and specific electrical energy consumption (SEEC), simultaneously. BEC was found to be significantly more effective at removing most hydrocarbons, particularly pristine and phytane. In addition, the results showed a significant improvement in settling ability of the biological flocs with average SVI of 91.5 mL/g and a size of 178.25 μm using BEC. Based on estimated operating costs and energy consumption, BEC was more cost-effective and efficient than other bioelectrochemical systems.
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Affiliation(s)
- Moeen Gholami
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
- Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch, New Zealand
| | - Behrooz Abbasi Souraki
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
| | - Abbas Shomali
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
| | - Alireza Pendashteh
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
- Department of Water Engineering and Environment, The Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran
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Geng Z, Zhang M, Zhu J, Peng Y, Zhang W, Liu F. Effect of Chromium Carbide Addition on the Microstructures and Properties in Dual Carbide Phases Reinforced Ni-Based Composite Coatings by Plasma Cladding. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4580. [PMID: 37444893 DOI: 10.3390/ma16134580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/21/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023]
Abstract
Cr3C2-modified NiCr-TiC composite coatings were prepared using the plasma spraying technique for different Cr3C2 contents on the microstructure and the properties of the Ni-based TiC cladding layer were investigated. The microstructures of the coatings were characterized using scanning electron microscopy, and the friction and wear performance of the coating was evaluated by the wear tests. The results revealed that the surfaces of the Cr3C2-modified NiCr-TiC composite coatings with varying Cr3C2 contents were dense and smooth. TiC was uniformly distributed throughout the entire coating, forming a gradient interface between the binder phase of the Ni-based alloy and the hard phase of TiC. At high temperatures, Cr3C2 decomposes, with some chromium diffusing and forming complex carbides around TiC, some chromium solubilizes with Fe, Ni, and other elements. An increase in chromium carbide content leads to an upward trend in hardness. The measured hardness of the coatings ranged from 600 to 850 HV3 and tended to increase with increasing Cr3C2 content. When the mass fraction of Cr3C2 reached 30%, the hardness increased to 850 HV3, and the cracks and defects were observed in the coating, resulting in a wear resistance decline.
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Affiliation(s)
- Zhanji Geng
- Powder Metallurgy Research Institute, Central South University, Changsha 410083, China
- Changsha Huaxi New Material Co., Ltd., Changsha 410083, China
| | - Mengling Zhang
- Hunan Hastion Technology Co., Ltd., Zhuzhou 412000, China
| | - Jianyong Zhu
- Hunan Metallurgy Material Institute Co., Ltd., Changsha 410129, China
| | - Yingbo Peng
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
| | - Wei Zhang
- Powder Metallurgy Research Institute, Central South University, Changsha 410083, China
| | - Feng Liu
- Powder Metallurgy Research Institute, Central South University, Changsha 410083, China
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Lv Y, Qiao J, Han W, Pan B, Jin X, Peng H. Modification Effect of Ca(OH) 2 on the Carbonation Resistance of Fly Ash-Metakaolin-Based Geopolymer. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2305. [PMID: 36984186 PMCID: PMC10056939 DOI: 10.3390/ma16062305] [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: 02/14/2023] [Revised: 03/09/2023] [Accepted: 03/12/2023] [Indexed: 06/18/2023]
Abstract
Compared with Portland cement, geopolymers have poor carbonization resistance, which will greatly limit the application their application. To improve the carbonization resistance of geopolymers, firstly, the carbonization behavior of the fly ash-metakaolin-based geopolymer was studied through accelerated carbonization tests. Secondly, different amounts of Ca(OH)2 were introduced into the composite system, and the modification effect of the carbonization resistance of the modified geopolymer was studied. Finally, the modification effect of Ca(OH)2 on the fly ash-metakaolin-based geopolymers was analyzed, and the modification mechanism was explored. It was found that adding Ca(OH)2 to the fly ash-metakaolin-based geopolymer could significantly improve its initial compressive strength, but its strength after carbonization remained basically unchanged; meanwhile, the compressive strength of the terpolymer after carbonization clearly decreased after adding Ca(OH)2. Compared with ordinary Portland cement, the carbonization rate of fly ash-metakaolin-based geopolymer is faster, and the addition of Ca(OH)2 can inhibit the development of its carbonization depth. With increased carbonization age, the alkalinity of the geopolymer decreased, and the addition of Ca(OH)2 inhibited the decrease in the alkalinity of the geopolymer. The addition of Ca(OH)2 improved the microstructure of the geopolymers, the pore structure became denser, and the pore size became smaller size after carbonization. The hydration products of fly ash-metakaolin-based geopolymer are mainly amorphous silicaluminate gel and C-S-H gel, and Ca(OH)2 forms in the hydration products of terpolymer with the incorporation of Ca(OH)2, which is conducive to improving the carbonization resistance. In summary, Ca(OH)2 can play a good role in modifying the carbonization resistance of fly ash-metakaolin-based geopolymers.
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Affiliation(s)
- Yigang Lv
- Key Laboratory of Advanced Engineering Materials, Structure Behavior and Functional Control of University of Hunan Province, Changsha University of Science & Technology, Changsha 410114, China
- School of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Jie Qiao
- School of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China
- Zhejiang Communications Construction Group Co., Ltd., Hangzhou 310051, China
| | - Weiwei Han
- School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China
- National Engineering Research Center of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China
| | - Bei Pan
- School of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Xiafei Jin
- School of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Hui Peng
- School of Civil Engineering, Changsha University of Science & Technology, Changsha 410114, China
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Two Step Fabrication of Nano-ZnO-α-FeOOH Composite for Experimental and Modeling Studies of Removal of Indigo Carmine and Alizarin Red S in Batch Process. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-022-00567-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Godwin J, Abdus-Salam N, Iyabode Haleemat A, Olalekan Bello M, Daniel Inyang E, Ibrahim Alkali M, Chandra Tripathy B. High performance Nanohybrid ZnO-α-FeOOH Adsorbent Prepared for Toxic Metal ions Removal from Wastewater: Combined Sorption and Desorption Studies. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Farrokhi Z, Sadjadi S, Raouf F, Bahri-Laleh N. Novel bio-based Pd/chitosan-perlite composite bead as an efficient catalyst for rapid decolorization of azo dye. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Godwin J, Abdus-Salam N, Haleemat AI, Panda PK, Panda J, Tripathy BC. Facile synthesis of rod-like α-FeOOH nanoparticles adsorbent and its mechanism of sorption of Pb(II) and indigo carmine in batch operation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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