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Tibebu S, Kassahun E, Ale TH, Worku A, Sime T, Berhanu AA, Akino B, Hailu AM, Ayana LW, Shibeshi A, Mohammed MA, Lema NK, Ammona AA, Tebeje A, Korsa G, Ayele A, Nuru S, Kebede S, Ayalneh S, Angassa K, Weldmichael TG, Ashebir H. The application of Rumex Abysinicus derived activated carbon/bentonite clay/graphene oxide/iron oxide nanocomposite for removal of chromium from aqueous solution. Sci Rep 2024; 14:19280. [PMID: 39164377 PMCID: PMC11335875 DOI: 10.1038/s41598-024-70238-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 08/14/2024] [Indexed: 08/22/2024] Open
Abstract
Rapid industrialization has significantly boosted economic growth but has also introduced severe environmental challenges, particularly in water pollution. This study evaluates the effectiveness of a nanocomposite composed of Rumex Abyssinicus Activated Carbon/Acid Activated Bentonite Clay/Graphene Oxide, and Iron Oxide (RAAC/AABC/GO/Fe3O4) for chromium removal from aqueous solutions. The preparation of the nanocomposite involved precise methods, and its characterization was performed using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) surface area analysis, and the point of zero charge (pHpzc). Batch adsorption experiments were designed using Design Expert software with a central composite design under response surface methodology. The factors investigated included pH (3, 6, and 9), initial Cr (VI) concentration (40, 70, and 100 mg/L), adsorbent dose (0.5, 0.75, 1 g/200 mL), and contact time (60, 90, and 120 min). Adsorption isotherms were analyzed using nonlinearized Langmuir, Freundlich, and Temkin models, while pseudo-first-order and pseudo-second-order models were applied to adsorption kinetics. Characterization revealed a pHpzc of 8.25, a porous and heterogeneous surface (SEM), diverse functional groups (FTIR), an amorphous structure (XRD), and a significant surface area of 1201.23 m2/g (BET). The highest removal efficiency of 99.91% was achieved at pH 6, with an initial Cr (VI) concentration of 70 mg/L, a 90 min contact time, and an adsorbent dose of 1 g/200 mL. Optimization of the adsorption process identified optimal parameters as pH 5.84, initial Cr (VI) concentration of 88.94 mg/L, contact time of 60 min, and adsorbent dose of 0.52 g/200 mL. The Langmuir isotherm model, with an R2 value of 0.92836, best described the adsorption process, indicating a monolayer adsorption mechanism. The pseudo-second-order kinetics model provided the best fit with an R2 value of 0.988. Overall, the nanocomposite demonstrates significant potential as a cost-effective and environmentally friendly solution for chromium removal from wastewater.
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Affiliation(s)
- Solomon Tibebu
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia.
| | - Estifanos Kassahun
- Department of Chemical Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
- Innovation Incubation Center & Intellectual Property Right Coordination Office, University-Industry Linkage & Technology Transfer Directorate, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Tigabu Haddis Ale
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Abebe Worku
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Takele Sime
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Afework Aemro Berhanu
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Belay Akino
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Abrha Mulu Hailu
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
- Department of Chemistry, Aksum University, Tigray, Ethiopia
| | - Lalise Wakshum Ayana
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
- Manufacturing Industry Development Institute, Chemical and Construction Inputs Industry Research and Development Center, Addis Ababa, Ethiopia
| | - Abebaw Shibeshi
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Mohammednur Abdu Mohammed
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Niguse Kelile Lema
- Department of Biotechnology, Arba Minch University, Arba Minch, Ethiopia
| | - Andualem Arka Ammona
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Aseged Tebeje
- Department of Chemical Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Gamachis Korsa
- Department of Biotechnology, College of Applied and Natural Science, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Abate Ayele
- Department of Biotechnology, College of Applied and Natural Science, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Saba Nuru
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Seble Kebede
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Shiferaw Ayalneh
- Department of Chemical Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Kenatu Angassa
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Tsedekech Gebremeskel Weldmichael
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Hailu Ashebir
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
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Zhang B, Zhu W, Hou R, Yue Y, Feng J, Ishag A, Wang X, Qin Y, Sun Y. Recent advances of application of bentonite-based composites in the environmental remediation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 362:121341. [PMID: 38824894 DOI: 10.1016/j.jenvman.2024.121341] [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: 02/25/2024] [Revised: 05/11/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
Bentonite-based composites have been widely utilized in the removal of various pollutants due to low cost, environmentally friendly, ease-to-operate, whereas the recent advances concerning the application of bentonite-based composites in environmental remediation were not available. Herein, the modification (i.e., acid/alkaline washing, thermal treatment and hybrids) of bentonite was firstly reviewed; Then the recent advances of adsorption of environmental concomitants (e.g., organic (dyes, microplastics, phenolic and other organics) and inorganic pollutants (heavy metals, radionuclides and other inorganic pollutants)) on various bentonite-based composites were summarized in details. Meanwhile, the effect of environmental factors and interaction mechanism between bentonite-based composites and contaminants were also investigated. Finally, the conclusions and prospective of bentonite-based composites in the environmental remediation were proposed. It is demonstrated that various bentonite-based composites exhibited the high adsorption/degradation capacity towards environmental pollutants under the specific conditions. The interaction mechanism involved the mineralization, physical/chemical adsorption, co-precipitation and complexation. This review highlights the effect of different functionalization of bentonite-based composites on their adsorption capacity and interaction mechanism, which is expected to be helpful to environmental scientists for applying bentonite-based composites into practical environmental remediation.
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Affiliation(s)
- Bo Zhang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China; Research Center of Applied Geology of China Geological Survery, Chengdu, 610036, PR China
| | - Weiyu Zhu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Rongbo Hou
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Yanxue Yue
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Jiashuo Feng
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Alhadi Ishag
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China; Department of Chemical Engineering, Faculty of Engineering and Technical Studies, University of Kordofan, El Obeid, 51111, Sudan
| | - Xiao Wang
- Research Center of Applied Geology of China Geological Survery, Chengdu, 610036, PR China
| | - Yan Qin
- Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037, PR China.
| | - Yubing Sun
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China.
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Liu Q, Chen Y, Chen Z, Xie Y, Yu H, Yuan S, Guo Y, Cheng Y, Qian H, Yao W. Rapid magnetization and removal of microplastics from environment and food based on magnetic metal-organic framework Fe 3O 4@SiO 2@MIL-53(Al). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:117373-117389. [PMID: 37867171 DOI: 10.1007/s11356-023-30314-0] [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: 06/30/2023] [Accepted: 10/03/2023] [Indexed: 10/24/2023]
Abstract
Microplastics (MPs) are now not only emerging as pollutants in the environment, but their current state of contamination in food is also a cause for concern. It is necessary to focus how to control, reduce, and even remove MPs. In this study, a magnetic metal-organic framework (MOF) material, Fe3O4@SiO2@MIL-53(Al), was synthesized and applied to simulate the magnetization and removal of four types of MPs. Fe3O4@SiO2@MIL-53(Al) was characterized by various means to demonstrate its successful synthesis as a core-shell nanomaterial. The conditions of the method were optimized by examining the effect of time, the mass ratio of material to MPs, temperature, and pH on the removal effect. The removal rates of four MPs were 54.10-94.17%, and the maximum adsorption capacities of Fe3O4@SiO2@MIL-53(Al) that can be adsorbed were 10511.45-44390.24 mg g-1. Notably, the material can effectively magnetize and remove MPs from liquid food containing alcohol with highest efficiency of 97.10 ± 1.21%. Potential adsorption mechanisms were analyzed using kinetic, isothermal, and thermodynamic models, and electrostatic attraction and hydrogen bonding were found to play a dominant role in the adsorption process. In addition, not only can Fe3O4@SiO2@MIL-53(Al) be reused up to five times to maintain high removal rates, but it can also be used in food systems. Therefore, Fe3O4@SiO2@MIL-53(Al) not only has the advantages of ease of use and stability, but also can efficiently and quickly magnetize and remove many common MPs in more complex matrices such as food.
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Affiliation(s)
- Qingrun Liu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yulun Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Zhe Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yunfei Xie
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Hang Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Shaofeng Yuan
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - He Qian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China.
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China.
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Wu J, Yang C, Zhao H, Shi J, Liu Z, Li C, Song F. Efficient removal of microplastics from aqueous solution by a novel magnetic biochar: performance, mechanism, and reusability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:26914-26928. [PMID: 36374390 DOI: 10.1007/s11356-022-24130-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
Microplastics' (MPs) pollution removal from water bodies has become an urgent task to ensure water quality safety and water ecological security on a global scale. In this work, coprecipitation was employed to investigate the adsorption of MPs by magnetic biochar (MRB) prepared from agricultural waste rice husks in an aquatic system. The results showed that MRB can adsorb up to 99.96% of MPs in water; acidic conditions were favorable for the effective MPs' adsorption reaction, and competing anions had a greater effect on adsorption. The adsorption mechanism results revealed that the adsorption of MPs by MRB was a spontaneous process, and electrostatic attraction, surface complexation, hydrogen bonding and π-π interactions were present in the adsorption process. Furthermore, after the adsorption of MPs, MRB can be recovered by thermal treatment (500 °C) and still exhibits up to 90% MPs adsorption (after four uses). This work reveals that MRB is an inexpensive, efficient, and reusable nanoscale adsorbent for MPs pollution removal in water, which may provide new ideas for microplastic pollution control in the aqueous environment.
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Affiliation(s)
- Juanjuan Wu
- School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
- Qinba Mountains of Bio-Resource Collaborative Innovation Center of Southern Shaanxi Province, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
| | - Chan Yang
- School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
- Qinba Mountains of Bio-Resource Collaborative Innovation Center of Southern Shaanxi Province, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
| | - Hanghang Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Xianyang, 712100, Shaanxi, China
| | - Juan Shi
- School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
- Qinba Mountains of Bio-Resource Collaborative Innovation Center of Southern Shaanxi Province, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
| | - Zhifeng Liu
- School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
- Qinba Mountains of Bio-Resource Collaborative Innovation Center of Southern Shaanxi Province, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
| | - Chen Li
- School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
- Qinba Mountains of Bio-Resource Collaborative Innovation Center of Southern Shaanxi Province, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China
| | - Fengmin Song
- School of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China.
- Qinba Mountains of Bio-Resource Collaborative Innovation Center of Southern Shaanxi Province, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, China.
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Thanigachalam S, Pathak M, Sathiyanarayanan KI. Photodegradation of rhodamine-B and methyl orange employing nano-alumina developed from new aluminium(III) complex(es) associated with phenanthridine-salicylaldehyde derived ligands. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2120814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Sathish Thanigachalam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Madhvesh Pathak
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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V S S, Vayalveettil A, Kazhuthuttil Kochu J, Thoppil Ramakrishnan R, Puthenveedu Sadasivan Pillai H. Bentonite-titanium dioxide functional nanocomposite suitable for wastewater treatment; An integrated photocatalyst-adsorbent system. NEW J CHEM 2022. [DOI: 10.1039/d1nj05472d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An integrated photocatalytic adsorbent system prepared from bentonite clay and titanium dioxide was used for the adsorption/degradation of model organic pollutants and adsorption of heavy metals from industrial wastewater. The...
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Ganie ZA, Khandelwal N, Tiwari E, Singh N, Darbha GK. Biochar-facilitated remediation of nanoplastic contaminated water: Effect of pyrolysis temperature induced surface modifications. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126096. [PMID: 34229390 DOI: 10.1016/j.jhazmat.2021.126096] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 06/13/2023]
Abstract
"Nanoplastics- the emerging contaminants" and "agricultural waste to resource conversion" both are currently at the scientific frontiers and require solutions. This study aims to utilize sugarcane bagasse-derived biochar for the removal of nanoplastics (NPs) from aqueous environment. Three types of biochar were synthesized at three different pyrolysis temperatures, i.e. 350, 550, and 750 ℃ and evaluated for their potential in removing NPs. Effect of various environmental parameters, i.e., competing ions, pH, humic acid and complex aqueous matrices on NPs sorption was also studied. Results showed that attributing to decreased carbonyl functional groups, increased surface area and pore abundance, biochar prepared at 750 ℃ showed drastically higher NPs removal (>99%), while BC-550 and BC-350 showed comparatively lower NPs sorption (<39% and <24%, respectively). Further sorption studies confirmed instantaneous NPs removal with equilibrium attainment within 5 min of interaction and efficient NPs sorption capacity, i.e. 44.9 mg/g for biochar prepared at 750 ℃. Non-linear-kinetic modeling suggested pseudo 1st order removal kinetics while isotherm and thermodynamic modeling confirmed- monolayer instantaneous sorption of NPs sorption. Enhanced electrostatic repulsion resulted in decrease in NPs sorption at alkaline conditions, whereas steric hindrance caused limited removal (<25%) at higher humic acid concentrations.
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Affiliation(s)
- Zahid Ahmad Ganie
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, West Bengal 741246, India
| | - Nitin Khandelwal
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, West Bengal 741246, India
| | - Ekta Tiwari
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, West Bengal 741246, India
| | - Nisha Singh
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, West Bengal 741246, India
| | - Gopala Krishna Darbha
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, West Bengal 741246, India; Centre for Climate and Environmental Studies, Indian Institute of Science Education, and Research, Kolkata, Mohanpur, West Bengal 741246, India.
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Yao L, Esmaeili H, Haghani M, Roco-Videla A. Activated Carbon/Bentonite/Fe
3
O
4
as Novel Nanobiocomposite for High Removal of Cr(VI) Ions. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Lei Yao
- Chuzhou University College of Civil and Architecture Engineering 239000 Chuzhou Anhui China
| | - Hossein Esmaeili
- Islamic Azad University Department of Chemical Engineering, Bushehr Branch Bushehr Iran
| | - Mahboubeh Haghani
- Islamic Azad University Department of Chemical Engineering, Bushehr Branch Bushehr Iran
| | - Angel Roco-Videla
- Universidad Bernardo O'Higgins Programa Magister en Ciencias Químico-Biológicas, Facultad de Ciencias de la Salud Santiago Chile
- Universidad Católica de la Santísima Concepción Departamento de Ingeniería Civil, Facultad de Ingeniería Concepción Chile
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Khandelwal N, Darbha GK. A decade of exploring MXenes as aquatic cleaners: Covering a broad range of contaminants, current challenges and future trends. CHEMOSPHERE 2021; 279:130587. [PMID: 33901892 DOI: 10.1016/j.chemosphere.2021.130587] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 04/06/2021] [Accepted: 04/14/2021] [Indexed: 06/12/2023]
Abstract
Clean water, the elixir of life, is of tremendous importance in achieving environmental sustainability and the balanced functioning of our ecosystem. Coupled with population growth, several anthropogenic activities and environmental catastrophes have together contributed to an alarming increase in the concentration of toxic pollutants in water bodies. Diversified physiochemical conditions of water matrices, ranging from mining drainage to seawater, is the critical challenge in designing adsorbents. MXenes, a new class of 2D layered materials, are transition metal nitrides, carbides, carbonitrides or borides formed through selective etching process. MXenes are known to have high surface area and activity with biological compatibility and chemical stability and therefore are promising adsorbents and have been explored for a broad range of contaminants. This review starts with a brief about environmental contaminants followed by synthesis and modifications of MXenes. It then revolves around their so far explored adsorbing and degradation properties for different contaminants ranging from toxic metals, inorganic ions, and radionuclides to various organic pollutants, including dyes, pharmaceuticals, aromatic hydrocarbons, and pesticides, etc. Finally, we have discussed associated toxicity, secondary contamination, future trends, and challenges in ascertaining scalability and wide-range applicability of MXenes in natural environmental conditions to make them a warrior of water sustainability.
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Affiliation(s)
- Nitin Khandelwal
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India, 741246
| | - Gopala Krishna Darbha
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India, 741246; Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, 741246, India.
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Rajak JK, Khandelwal N, Behera MP, Tiwari E, Singh N, Ganie ZA, Darbha GK, Abdolahpur Monikh F, Schäfer T. Removal of chromate ions from leachate-contaminated groundwater samples of Khan Chandpur, India, using chitin modified iron-enriched hydroxyapatite nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:41760-41771. [PMID: 33788088 DOI: 10.1007/s11356-021-13549-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Chromite ore processing residues (COPR) are real environmental threats, leading to CrO42-, i.e., Cr (VI) leaching into groundwater. It is of serious concern as Cr (VI) is proven to be carcinogenic. Here we emphasize the application of novel and eco-friendly chitin functionalized iron-enriched hydroxyapatite nanocomposite (HAP-Fe0-Ct) in the remediation of Cr (VI)-contaminated groundwater samples collected from Khan Chandpur, India, where the level of Cr (VI) is found to be 11.7 mg/L in a complex aqueous matrix having 793 mg/L of total dissolved solids. Chitin functionality in the composite has resulted in positive zeta potential at circum-neutral pH, favoring electrostatic attraction of chromate ions and resulting in its bulk surface transport. The HAP-Fe0-Ct showed faster kinetics of removal with efficiency (qm = 13.9 ± 0.46 mg/g) for Cr (VI). The composite has shown sorption equilibrium and 100% removal of Cr (VI) within 3 h of interaction time in groundwater samples. No Cr (VI) leaching in the acid wash process at pH 3.5 also suggests chromium's strong chemisorption onto nanocomposite. During the interaction in aqueous solutions, the reduced iron (Fe0) on the nanocomposite becomes oxidized, suggesting the probable simultaneous reduction of Cr (VI) and its co-precipitation. Continuous column extraction of chromate ions was also efficient in both spiked solutions (39.7 ± 0.04 mg/g) and COPR contaminated water (13.2 ± 0.09 mg/g). Reusability up to three cycles with almost complete Cr (VI) removal may be attributed to surface protonation, new binding sites generation, and electron transfer from Fe0 core through defects. The study concludes that HAP-Fe0-Ct could be utilized for continuous Cr (VI) removal from COPR contaminated complex groundwater matrices.
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Affiliation(s)
- Jai Kishan Rajak
- Environmental Nanoscience Laboratory, Department of Earth Sciences, IISER Kolkata, Mohanpur, West Bengal, 741246, India
| | - Nitin Khandelwal
- Environmental Nanoscience Laboratory, Department of Earth Sciences, IISER Kolkata, Mohanpur, West Bengal, 741246, India
| | - Mahima Prasad Behera
- Environmental Nanoscience Laboratory, Department of Earth Sciences, IISER Kolkata, Mohanpur, West Bengal, 741246, India
| | - Ekta Tiwari
- Environmental Nanoscience Laboratory, Department of Earth Sciences, IISER Kolkata, Mohanpur, West Bengal, 741246, India
| | - Nisha Singh
- Environmental Nanoscience Laboratory, Department of Earth Sciences, IISER Kolkata, Mohanpur, West Bengal, 741246, India
| | - Zahid Ahmad Ganie
- Environmental Nanoscience Laboratory, Department of Earth Sciences, IISER Kolkata, Mohanpur, West Bengal, 741246, India
| | - Gopala Krishna Darbha
- Environmental Nanoscience Laboratory, Department of Earth Sciences, IISER Kolkata, Mohanpur, West Bengal, 741246, India.
- Center for Climate & Environmental Studies, IISER Kolkata, Mohanpur, West Bengal, 741246, India.
| | - Fazel Abdolahpur Monikh
- Department of Environmental & Biological Sciences, University of Eastern Finland, P.O. Box 111, FI-80101, Joensuu, Finland
| | - Thorsten Schäfer
- Institute of Geosciences, Applied Geology, Friedrich-Schiller-Universitat Jena, Burgweg 11, D-07749, Jena, Germany
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Influence of Physicochemical Properties and Parent Material on Chromium Fractionation in Soils. Processes (Basel) 2021. [DOI: 10.3390/pr9061073] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Chromium is an element that possess several oxidation states and can easily pass from one to another, so its behavior in soils is very complex. For this reason, determining its fate in the environment can be difficult. In this research work we tried to determine which factors affect the chromium fractionation in natural soils, conditioning chromium mobility. We paid special attention to the parent material. For this purpose, extraction experiments were carried out on spiked soils incubated for 50–60 days, using H2O, CaCl2 and diethylenetriaminepentaacetic acid (DTPA). The most efficient extraction rate in all soils was achieved using water, followed by CaCl2 and DTPA. We obtained models with an adjusted R2 of 0.8097, 0.8471 and 0.7509 for the H2O Cr, CaCl2 Cr and DTPA Cr respectively. All models were influenced by the amount of chromium added and the parent material: amphibolite and granite influenced the amount of H2O Cr extracted, and schist affected the other two fractions (CaCl2 and DTPA). Soil texture also played an important role in the chromium extraction, as well as the amounts of exchangeable aluminum and magnesium, and the bioavailable phosphorus. We concluded that it is possible to make relatively accurate predictions of the behavior of the different Cr fractions studied, so that optimized remediation strategies for chromium-contaminated soils can be designed on the basis of a physicochemical soil characterization.
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Singh N, Khandelwal N, Tiwari E, Naskar N, Lahiri S, Lützenkirchen J, Darbha GK. Interaction of metal oxide nanoparticles with microplastics: Impact of weathering under riverine conditions. WATER RESEARCH 2021; 189:116622. [PMID: 33227610 DOI: 10.1016/j.watres.2020.116622] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/31/2020] [Accepted: 11/07/2020] [Indexed: 05/05/2023]
Abstract
The ubiquitous distribution of microplastics (MPs) leads to inevitable interactions with the toxic pollutants present in the environment including metal-oxide nanoparticles. This study investigates the interaction of CeO2 nanoparticles (CeNPs) with MPs generated from a disposable plastic container. Further, rough MPs (R-MPs), generated through mechanical abrasion of MPs with sand, were used to probe the impact of roughness. To understand the sorption kinetics and underlying interaction processes, batch experiments were carried out. The results distinctly indicate that CeNPs sorption occurred on MPs surfaces and was consistent with the pseudo-second order kinetics model. For pristine MPs, the sorption capacity was as high as 12.9 mg/g while for R-MPs kinetic equilibrium was achieved faster and an enhanced sorption capacity (13.4 mg/g) was identified. A rise in sorption with an increase in salinity was noted while pH and humic acid exhibited a negative correlation. The observed interactions were attributed to the aggregation profile and surface charge of CeNPs and MPs. Surprisingly, CeNPs also got loaded onto MPs in non-agitated and undisturbed conditions. The sorption process was influenced by the type of aqueous matrix and the sorption capacity at equilibrium followed the trend: distilled water> synthetic freshwater> river water. FTIR spectra, zeta potential, SEM imaging, and elemental mapping revealed electrostatic interaction as the dominant mechanism. This work contributes towards the knowledge gap on the environmental risk of MPs.
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Affiliation(s)
- Nisha Singh
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India
| | - Nitin Khandelwal
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India
| | - Ekta Tiwari
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India
| | - Nabanita Naskar
- Chemical Sciences Division, Saha Institute of Nuclear Physics- Kolkata, West Bengal, 700019, India
| | - Susanta Lahiri
- Chemical Sciences Division, Saha Institute of Nuclear Physics- Kolkata, West Bengal, 700019, India
| | - Johannes Lützenkirchen
- Institute of Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Gopala Krishna Darbha
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India; Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India.
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Khandelwal N, Tiwari E, Singh N, Marsac R, Schäfer T, Monikh FA, Darbha GK. Impact of long-term storage of various redox-sensitive supported nanocomposites on their application in removal of dyes from wastewater: Mechanisms delineation through spectroscopic investigations. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123375. [PMID: 32659582 DOI: 10.1016/j.jhazmat.2020.123375] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/12/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
For the prevention of freshwater reservoirs from contamination through industrial effluents, eco-friendly adsorbents with minimal aging impact are required. Here, redox-sensitive nanoscale zero-valent iron(nZVI) particles were supported on four different surfaces with varying bentonite(B)/charcoal(C) ratio to mimic layered and porous surfaces. Different dyes, i.e. rhodamine-B(RB) and methylene blue(MB) were reacted with redox-sensitive supported nZVI composites, and degradation mechanisms were delineated using FT-IR spectroscopic analysis of reaction precipitates. A 300-day exposure to open-air was provided to the composites to comparatively evaluate the impact of aging on their reactivity for dyes in wastewater. Results interpret that dyes removal was a combination of different interfacial chemical processes, i.e., reduction or organic degradation probably through Fenton like processes, along with sorption. These mechanisms were found to be surface dependent, i.e., nZVI on charcoal enriched porous surfaces, degrade dyes through organic degradation while on layered clay surfaces, MB gets removed through reduction with limited and slower RB removal. Nanocomposites show a minimal impact of aging with removal capacities >100 mg/g for BC-1/3-nZVI and C-nZVI for MB and 50-75 mg/g for RB with significant removal in wastewater. Overall, the study concludes C-nZVI and novel BC-1/3-nZVI as two efficient dye adsorbents with minimal aging impact.
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Affiliation(s)
- Nitin Khandelwal
- Environmental Nanoscience Laboratory, Department of Earth Sciences & Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India
| | - Ekta Tiwari
- Environmental Nanoscience Laboratory, Department of Earth Sciences & Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India
| | - Nisha Singh
- Environmental Nanoscience Laboratory, Department of Earth Sciences & Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India
| | - Remi Marsac
- Geosciences Rennes - UMR CNRS, Universite De Rennes 1, Campus De Beaulieu, CS74205, 35042, Rennes Cedex, France
| | - Thorsten Schäfer
- Institute of Geosciences, Applied Geology, Friedrich-Schiller-Universitat Jena, Burgweg 11, D-07749, Jena, Germany
| | - Fazel Abdolahpur Monikh
- Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300 RA, Leiden, The Netherlands
| | - Gopala Krishna Darbha
- Environmental Nanoscience Laboratory, Department of Earth Sciences & Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, 741246, India.
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Tiwari E, Singh N, Khandelwal N, Monikh FA, Darbha GK. Application of Zn/Al layered double hydroxides for the removal of nano-scale plastic debris from aqueous systems. JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122769. [PMID: 32422514 DOI: 10.1016/j.jhazmat.2020.122769] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 05/26/2023]
Abstract
Nano-scale plastic debris (NPDs) are emerging as potential contaminants as they can be easily ingested by aquatic organisms and carry many pollutants in the environment. This study is aimed to remove NPDs from aqueous environment for the first time by using eco-friendly adsorption techniques. Initially, the interaction between NPDs and synthesized Zn-Al layered double hydroxide (LDH) was confirmed by pH titration of Zn-Al LDH against NPDs at varying mass ratio (50:1 to 50:7) and FTIR analysis for both before and after 2 h of contact time. Fast removal was observed in deionized water and synthetic freshwater with maximum sorption capacity (Qmax) of 164.49 mg/g,162.62 mg/g, respectively, according to Sips isotherm. Whereas, removal was least in synthetic hard water having a Qmax value of 53 mg/g. For 2 mM concentration of SO42- and PO43-, the adsorption capacity significantly decreased to 2%. The removal efficiency was found 100 % at pH 4, while at pH 9, it reached 37 % due to increased competitive binding and destabilization of LDH under alkaline conditions. The process of sorption was spontaneous in different types of water studied. The study reveals that Zn-Al LDH can be used as potential adsorbent for the removal of NPDs from freshwater systems.
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Affiliation(s)
- Ekta Tiwari
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India
| | - Nisha Singh
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India
| | - Nitin Khandelwal
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India
| | - Fazel Abdolahpur Monikh
- Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300 RA Leiden, Netherlands
| | - Gopala Krishna Darbha
- Environmental Nanoscience Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India; Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, 741246, West Bengal, India.
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