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Khorasani AC, Satvati PR. Reusable cellulose-based biosorbents for efficient iodine adsorption by economic microcrystalline cellulose production from walnut shell. Int J Biol Macromol 2024; 256:128432. [PMID: 38013070 DOI: 10.1016/j.ijbiomac.2023.128432] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/10/2023] [Accepted: 11/23/2023] [Indexed: 11/29/2023]
Abstract
Sustainable management of walnut shell (WS) for the extraction of cellulose and preparation of cellulose-based biosorbents of iodine was carried out as a new approach to simultaneously solve the environmental challenge of agricultural solid waste and iodine-contaminated water. A rapid recyclable nitric acid treatment and NaOH-H2O2 alkaline-peroxide treatment of WS (33 % cellulose) extracted pure microcrystalline (Cac) and impure cellulose (Cal) with a 21.70 % and 47.37 % isolation yield, respectively. The techno-economic assessment of cellulose production showed a net profit of 9.02 $/kg for Cac, whereas it was estimated as negative for Cal. The simultaneous carbonization and magnetization of Cac at 550 °C resulted in an amorphous, magnetic cellulose-derived biochar (MB550Cac) with a BET specific surface area of 12.64 m2/g, decorated with scattered irregular Fe3O4 microparticles. The adsorption capacity of MB550Cac for iodine was 555.63 mg/g, which was lost only 17.45 % after six successful cycles of regeneration. Freundlich isotherm model sufficiently described the reversible iodine adsorption on the heterogenous surface. The adsorption kinetics followed the pseudo-second-order model. Further, the adsorption thermodynamics demonstrated spontaneous and favorable adsorption. These findings suggest the valorization of WS to commercially produce cellulose and MB550Cac as a sustainable, efficient biosorbent with a good application prospect in wastewater treatment.
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Affiliation(s)
| | - Paria Razavi Satvati
- Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
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Shin JH, Yang JE, Park JE, Jeong SW, Choi SJ, Choi YJ, Jeon J. Rapid and Efficient Removal of Anionic Dye in Water Using a Chitosan-Coated Iron Oxide-Immobilized Polyvinylidene Fluoride Membrane. ACS OMEGA 2022; 7:8759-8766. [PMID: 35309453 PMCID: PMC8928519 DOI: 10.1021/acsomega.1c06991] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 02/21/2022] [Indexed: 05/14/2023]
Abstract
Anionic dyes are one of the most serious contaminants in water as these molecules are known to be toxic to many living organisms. Herein, we report the development of functionalized polyvinylidene fluoride membranes modified with chitosan-coated iron oxide nanomaterials (Fe-PVDF) for the efficient treatment of anionic dye-contaminated water. Aqueous solutions of anionic dyes could be captured rapidly by passing through the functionalized membrane under reduced pressure. Under neutral conditions, Fe-PVDF showed a maximum removal capacity of 74.6 mg/g for Evans blue (EB) through the adsorption process. In addition, the adsorption capacity was significantly enhanced up to 434.78 mg/g under acidic conditions. The adsorption process for EB matched well with the Langmuir model, indicating monolayer adsorption of the dye to the membrane surface. Moreover, Fe-PVDF can be reusable by a simple washing step in an alkaline solution, and thus, the composite membrane was applied several times without a significant decrease in its adsorption performance. The same composite membrane was further applied to the removal of five other different anionic dyes with high efficiencies. The adsorption mechanism can be explained by the electrostatic interaction between the positively charged chitosan and the negatively charged dye as well as the affinity of the sulfate groups in dye molecules for the surface of the iron oxide nanoparticles. The easy preparation and rapid decolorization procedures make this composite membrane suitable for efficient water treatment.
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Affiliation(s)
- Jun-Ho Shin
- Department
of Applied Chemistry, College of Engineering, Kyungpook National University, Daegu 41566, Republic
of Korea
| | - Jung Eun Yang
- Department
of Advanced Process Technology and Fermentation, World Institute of Kimchi, Gwangju 61755, Republic of Korea
| | - Jung Eun Park
- Department
of Applied Chemistry, College of Engineering, Kyungpook National University, Daegu 41566, Republic
of Korea
| | - Sun-Wook Jeong
- School
of Environmental Engineering, University
of Seoul, Seoul 02504, Republic of Korea
| | - Sang-June Choi
- School
of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Republic
of Korea
| | - Yong Jun Choi
- School
of Environmental Engineering, University
of Seoul, Seoul 02504, Republic of Korea
- . Phone: +82-2-6490-2873. Fax: +82-2-6490-2859
| | - Jongho Jeon
- Department
of Applied Chemistry, College of Engineering, Kyungpook National University, Daegu 41566, Republic
of Korea
- . Phone: +82-53-950-5584. Fax: +82-53-950-5580
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Removal of Hexavalent Chromium(VI) from Wastewater Using Chitosan-Coated Iron Oxide Nanocomposite Membranes. TOXICS 2022; 10:toxics10020098. [PMID: 35202284 PMCID: PMC8875893 DOI: 10.3390/toxics10020098] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 12/11/2022]
Abstract
Chromium is a toxic and carcinogenic heavy metal that originates from various human activities. Therefore, the effective removal of chromium from aqueous solutions is an extremely important global challenge. Herein, we report a chitosan-coated iron oxide nanoparticle immobilized hydrophilic poly(vinylidene) fluoride membrane (Chi@Fe2O3–PVDF) which can potentially be used for efficient removal of hexavalent chromium(VI) by a simple filtration process. Membrane filtration is an easy and efficient method for treating large volumes of water in a short duration. The adsorption experiments were conducted by batch and continuous in-flow systems. The experimental data showed rapid capture of hexavalent chromium (Cr(VI)) which can be explained by the pseudo-second-order kinetic and Langmuir isotherm model. The nanocomposite membrane exhibited high adsorption capacity for Cr(VI) (14.451 mg/g in batch system, 14.104 mg/g in continuous in-flow system). Moreover, its removal efficiency was not changed significantly in the presence of several competing ions, i.e., Cl−, NO3−, SO42−, and PO43−. Consequently, the Chi@Fe2O3-PVDF-based filtration process is expected to show a promising direction and be developed as a practical method for wastewater treatment.
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Zia MR, Raza MA, Park SH, Irfan N, Ahmed R, Park JE, Jeon J, Mushtaq S. Removal of Radioactive Iodine Using Silver/Iron Oxide Composite Nanoadsorbents. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:588. [PMID: 33652803 PMCID: PMC7996965 DOI: 10.3390/nano11030588] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 12/14/2022]
Abstract
Efficient and cost-effective removal of radioactive iodine (radioiodine) from radioactive contaminated water has become a crucial task, following nuclear power plant disasters. Several materials for removing radioiodine have been reported in the literature. However, most of these materials exhibit some limitations, such as high production cost, slow adsorption kinetics, and poor adsorption capacity. Herein, we present silver/iron oxide nanocomposites (Ag/Fe3O4) for the efficient and specific removal of iodine anions from contaminated water. The Ag/Fe3O4 were synthesized using a modified method and characterized via scanning electron microscopy, transmission electron microscopy, and X-ray diffraction analyses. This adsorbent showed a high adsorption capacity for iodine anions (847 mg/g of the adsorbent) in pure water. Next, Ag/Fe3O4 was applied to the removal of radioiodine, and high removal efficiencies were observed in water. In addition, its desalination capacity was retained in the presence of competitive ions and varied pH. After the adsorption process, Ag/Fe3O4 was easily removed from the water by applying an external magnetic field. Moreover, the same operation can be repeated several times without a significant decrease in the performance of Ag/Fe3O4. Therefore, it is expected that the findings presented in this study will offer a new method for desalinating radioiodine in various aqueous media.
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Affiliation(s)
- Mah Rukh Zia
- Department of Nuclear Engineering, Pakistan Institute of Engineering and Applied Sciences, P. O. Nilore, Islamabad 45650, Pakistan; (M.R.Z.); (N.I.); (R.A.)
| | - Muhammad Asim Raza
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea; (M.A.R.); (S.H.P.)
- Radiation Science and Technology, University of Science and Technology, Daejeon 34113, Korea
| | - Sang Hyun Park
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea; (M.A.R.); (S.H.P.)
- Radiation Science and Technology, University of Science and Technology, Daejeon 34113, Korea
| | - Naseem Irfan
- Department of Nuclear Engineering, Pakistan Institute of Engineering and Applied Sciences, P. O. Nilore, Islamabad 45650, Pakistan; (M.R.Z.); (N.I.); (R.A.)
| | - Rizwan Ahmed
- Department of Nuclear Engineering, Pakistan Institute of Engineering and Applied Sciences, P. O. Nilore, Islamabad 45650, Pakistan; (M.R.Z.); (N.I.); (R.A.)
| | - Jung Eun Park
- Department of Applied Chemistry, College of Engineering, Kyungpook National University, Daegu 41566, Korea;
| | - Jongho Jeon
- Department of Applied Chemistry, College of Engineering, Kyungpook National University, Daegu 41566, Korea;
| | - Sajid Mushtaq
- Department of Nuclear Engineering, Pakistan Institute of Engineering and Applied Sciences, P. O. Nilore, Islamabad 45650, Pakistan; (M.R.Z.); (N.I.); (R.A.)
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea; (M.A.R.); (S.H.P.)
- Radiation Science and Technology, University of Science and Technology, Daejeon 34113, Korea
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