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Wang B, Liu Y, Wang Z, Zhang Q. Rare earth elements sequestration in phytoliths: Partitioning patterns and influencing mechanism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175287. [PMID: 39111446 DOI: 10.1016/j.scitotenv.2024.175287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 08/02/2024] [Accepted: 08/02/2024] [Indexed: 08/10/2024]
Abstract
Rare earth elements (REEs) are integral to numerous high-tech industries, yet their biogeochemical cycling within ecosystems remains inadequately characterized. Recently, phytoliths have been identified as potentially significant sinks for REEs; however, their role in the cycling of these elements has been underestimated. In this work, we investigate the accumulation of REEs in phytoliths (PhytREEs) within the Greater Khingan Mountains region, employing an optimized wet oxidation method combined with heavy liquid flotation to quantify PhytREEs contents in surface soils. The results revealed an elevation-dependent pattern of PhytREEs concentration, with heightened levels at higher altitudes and diminishing concentrations towards the eastern plains. The enrichment coefficient of PhytREEs (ECPhytREEs) was found to be approximately 2.7 %, indicative of a moderately selective sequestration process. The multivariate analysis indicated that terrain complexity, climatic patterns, soil texture, and organic matter significantly influence the uptake and storage of REEs in plants, subsequently affecting their partitioning in phytoliths. Among these factors, the complexation of REEs with organic matter emerged as a pivotal mechanism facilitating their immobilization within phytoliths. Soil characteristics also play a non-negligible role in modulating REEs dynamics. Our findings highlight the predominant influence of climate on PhytREE storage, suggesting that climatic variables are the primary drivers modulating the bioavailability and ultimate sequestration of REEs within phytoliths. This study enhances our understanding of the biotic-abiotic interplay in the sequestration of REEs and underscores the need to incorporate phytoliths into models of terrestrial REE cycling.
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Affiliation(s)
- Bing Wang
- Forestry College, Inner Mongolia Agricultural University, Hohhot 010019, China; Forest Ecosystem National Observation and Research Station of Greater Khingan Mountains in Inner Mongolia, Genhe 022350, China.
| | - Yangzheng Liu
- School of Ecology and Environment, Inner Mongolia University, 010021 Hohhot, China
| | - Zihao Wang
- Forestry College, Inner Mongolia Agricultural University, Hohhot 010019, China
| | - Qiuliang Zhang
- Forestry College, Inner Mongolia Agricultural University, Hohhot 010019, China; Forest Ecosystem National Observation and Research Station of Greater Khingan Mountains in Inner Mongolia, Genhe 022350, China
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2
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Zhou Z, Zhang C, Xi M, Ma H, Jia H. Multi-scale modeling of natural organic matter-heavy metal cations interactions: Aggregation and stabilization mechanisms. WATER RESEARCH 2023; 238:120007. [PMID: 37121201 DOI: 10.1016/j.watres.2023.120007] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/17/2023]
Abstract
Interaction between natural organic matters (NOM) and heavy metal cations in aqueous environment are of great significance for maintaining stability of organic carbon and restraining transport of heavy metal contaminants in (bio)geochemical processes. We systematically explore the aggregation process and complexation between NOM and heavy metal cations (Ag+, Cd2+, Pb2+, Zn2+, Eu3+) under different pH condition by molecular dynamics (MD) simulations, umbrella sampling method, and quantum chemistry calculations. The character of molecular structures NOM-heavy metal complexes and association are quantified. In acidic pH condition, aggregation proceeds via H-bonding and π-π interactions between NOM fragments. In neutral condition, Ag+, Cd2+, Pb2+, and Eu3+ can form inner-sphere complexes with the surface carboxylic groups and therefore reduce intermolecular charge repulsion, eventually leading to NOM aggregation, and it shows that even without direct binding, the outer-sphere adsorbed Zn2+ can also result in the formation of NOM assemble through H-bonding. Consequently, these heavy metals are capable of promoting NOM aggregation regardless of the complexing ways. Complexing free energy calculations characterized the dynamic processes of cations binding to the carboxylic groups of NOM fragment and the related energy landscape. This study provides quantitative insights for understanding the environmental processes of heavy metals and cycle of C in aquatic ecosystem, and contributes to developing environment-friendly strategies for controlling heavy metal contaminants.
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Affiliation(s)
- Zhiyu Zhou
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi, 712100, P.R. China
| | - Chi Zhang
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi, 712100, P.R. China; Key Laboratory of Low-Carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi, 712100, P.R. China.
| | - Mengning Xi
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi, 712100, P.R. China
| | - Haonan Ma
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi, 712100, P.R. China
| | - Hanzhong Jia
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi, 712100, P.R. China; Key Laboratory of Low-Carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi, 712100, P.R. China.
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3
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Han J, Burak D, Poliukhova V, Lee AS, Jang H, Hwang S, Baek KY, Han J, Ju BK, Cho SH. Lanthanide and Ladder-Structured Polysilsesquioxane Composites for Transparent Color Conversion Layers. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2537. [PMID: 36984418 PMCID: PMC10053414 DOI: 10.3390/ma16062537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
Ladder-type polysilsesquioxanes (LPSQs) containing phenyl as a high refractive index unit and cyclic epoxy as a curable unit were found to be excellent candidates for a transparent color conversion layer for displays due to being miscible with organic solvents and amenable to transparent film formation. Therefore, the LPSQs were combined with luminescent lanthanide metals, europium Eu(III), and terbium Tb(III), to fabricate transparent films with various emission colors, including red, orange, yellow, and green. The high luminescence and transmittance properties of the LPSQs-lanthanide composite films after thermal curing were attributed to chelating properties of hydroxyl and polyether side chains of LPSQs to lanthanide ions, as well as a light sensitizing effect of phenyl side chains of the LPSQs. Furthermore, Fourier-transform infrared (FT-IR) and X-ray photoelectron spectroscopy and nanoindentation tests indicated that the addition of the nanoparticles to the LPSQs moderately enhanced the epoxy conversion rate and substantially improved the wear resistance, including hardness, adhesion, and insusceptibility to atmospheric corrosion in a saline environment. Thus, the achieved LPGSG-lanthanide hybrid organic-inorganic material could effectively serve as a color conversion layer for displays.
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Affiliation(s)
- Jaehyun Han
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Display and Nanosystem Laboratory, College of Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Darya Burak
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Nanomaterial Science and Engineering, Korea University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Valeriia Poliukhova
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Albert S. Lee
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Hoseong Jang
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Nanomaterial Science and Engineering, Korea University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Seungsang Hwang
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Nanomaterial Science and Engineering, Korea University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Kyung-Youl Baek
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Nanomaterial Science and Engineering, Korea University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Joonsoo Han
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Byeong-Kwon Ju
- Display and Nanosystem Laboratory, College of Engineering, Korea University, Seoul 02841, Republic of Korea
| | - So-Hye Cho
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Department of Nanomaterial Science and Engineering, Korea University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
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Fang X, Yuan W, Li Z, Zhang X, Yu J, Chen J, Wang X, Qiu X. Effect of calcination temperatures on the performance of rectorite for cadmium immobilization in soil: Freeze-thaw, plant growth, and microbial diversity. ENVIRONMENTAL RESEARCH 2023; 216:114838. [PMID: 36402188 DOI: 10.1016/j.envres.2022.114838] [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: 09/29/2022] [Revised: 11/08/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
The immobilization of cadmium (Cd(II)) in soil using calcined rectorite (REC) was investigated in this research. The results of immobilization show that a small amount of REC calcined at 700 °C (REC-700 °C) could effectively immobilize 90% of Cd(II) in soil, while the immobilization efficiency of REC only reached 42%. Moreover, the immobilization efficiency of REC calcined at 300 °C and 500 °C (REC-300 °C and REC-500 °C) were lower than REC. To investigate the mechanism, the materials before and after immobilization were fully analyzed by Fourier transform infrared spectroscopy (FT-IR), powdery X-ray diffraction analysis (XRD), and scanning electron microscopy (SEM). The results indicate that the structure of REC has been changed after calcination at different temperatures and Cd(II) was successfully immobilized on materials. Losing free water, structural water and OH groups respectively, the layer spacing of REC-300 °C and REC-500 °C was shrunk. However, the crystal structure of REC was destroyed after calcination at 700 °C, resulting in the generation of new phases. According to the XRD result, more cadmium hydroxide (Cd(OH)2) were produced on REC-700 °C, indicating that more OH groups were formed during immobilization. Furthermore, Tessier test demonstrates that Cd(II) in soil changed from exchangeable state and water soluble state to carbonate bound state and iron manganese oxide bound state during immobilization. The result of microbial community indicates that REC-700 °C can restore the microbial composition of Cd(II)-contaminated soil. The effects of pH, freeze-thaw, REC dosage, and initial heavy metal concentration were also evaluated to provide a theoretical basis for the subsequent application of the material in the remediation of contaminated soil.
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Affiliation(s)
- Xing Fang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Wenying Yuan
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Zhenhui Li
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Xiaoxuan Zhang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Junxia Yu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Jinyi Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; Hubei Engineering Technology Research Center for Chemical Industry Pollution Control, Wuhan, 430205, China
| | - Xiaofeng Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, 430205, China; Hubei Engineering Technology Research Center for Chemical Industry Pollution Control, Wuhan, 430205, China.
| | - Xinhong Qiu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, 430205, China; Hubei Engineering Technology Research Center for Chemical Industry Pollution Control, Wuhan, 430205, China; Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Wuhan, 430074, China.
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5
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Abu Elgoud E, Aly MI, Hamed MM, Nayl AA. NanoTafla Nanocomposite as a Novel Low-Cost and Eco-Friendly Sorbent for Strontium and Europium Ions. ACS OMEGA 2022; 7:10447-10457. [PMID: 35382267 PMCID: PMC8973054 DOI: 10.1021/acsomega.1c07255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Now the wide use of nanooxides is attributed to their remarkable collection of properties. Nanocomposites have an impressive variety of important applications. A thermal decomposition approach provides a more optimistic method for nanocrystal synthesis due to the low cost, high efficiency, and expectations for large-scale production. Therefore, in this study a new eco-friendly nanooxide composite with sorption characteristics for europium (Eu(III)) and strontium (Sr(II)) was synthesized by a one-step thermal treatment process using earth-abundant tafla clay as a starting material to prepare a modified tafla (M-Taf) nanocomposite. The synthesized nancomposite was characterized by different techniques before and after sorption processes. Different factors that affected the sorption behavior of Eu(III) and Sr(II) in aqueous media by the M-Taf nanocomposite were studied. The results obtained illustrated that the kinetics of sorption of Eu(III) and Sr(II) by the M-Taf nanocomposite are obeyed according to the pseudo-second order and controlled by a Langmuir isotherm model with maximum sorption capacities (Q max) of 25.5 and 23.36 mg/g for Eu(III) and Sr(II), respectively. Also, this novel low-cost and eco-friendly sorbent has promising properties and can be used to separate and retain some radionuclides in different applications.
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Affiliation(s)
- Elsayed
M. Abu Elgoud
- Hot
Laboratories and Waste Management Center, Egyptian Atomic Energy Authority, Cairo 13759, Egypt
| | - Mohamed I. Aly
- Hot
Laboratories and Waste Management Center, Egyptian Atomic Energy Authority, Cairo 13759, Egypt
| | - Mostafa M. Hamed
- Hot
Laboratories and Waste Management Center, Egyptian Atomic Energy Authority, Cairo 13759, Egypt
| | - AbdElAziz A. Nayl
- Department
of Chemistry, College of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Aljouf, Saudi
Arabia
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6
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Gendy EA, Oyekunle DT, Ali J, Ifthikar J, El-Motaleb Mosad Ramadan A, Chen Z. High-performance removal of radionuclides by porous organic frameworks from the aquatic environment: A review. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2021; 238-239:106710. [PMID: 34481100 DOI: 10.1016/j.jenvrad.2021.106710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Dealing with unwanted nuclear waste is still a serious issue from the point of view of humans and the environment because of its harmful and dangerous effects. Recently, porous organic frameworks (POFs) have gained an increasing concern as effective materials in the removal of various types of hazardous metal ions, especially radioactive metal ions. POFs are a unique class that included covalent organic frameworks (COFs) and metal-organic frameworks (MOFs) with strong covalent bonds, large surface area, high adsorption capacity, tunable porosity, and a porous structure with more efficient than conventional adsorbents. This review highlights the recent developments of POFs for the rapid elimination of radionuclide. The unique characteristics, adsorption properties, and interaction mechanisms between radioactive metal ions and the POF-based materials are summarized. Also, prospects for enhancing the performance of POFs to capture radioactive metal ions are discussed.
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Affiliation(s)
- Eman Abdelnasser Gendy
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Chemistry Department, Faculty of Science, Kafrelsheikh University, El-Geish Street, P.O. Box 33516, Kafrelsheikh, Egypt
| | - Daniel Temitayo Oyekunle
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Jawad Ali
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Jerosha Ifthikar
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Abd El-Motaleb Mosad Ramadan
- Chemistry Department, Faculty of Science, Kafrelsheikh University, El-Geish Street, P.O. Box 33516, Kafrelsheikh, Egypt
| | - Zhuqi Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China.
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7
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Prediction and optimization of adsorption performance of MC@MgAl-LDH for the removal of humic acid from aqueous solution: BBD model and mechanism. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122377] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Li S, Wu S, Zhang K, Zeng T, Rong L, Wang G. Fractional factorial design in modeling of polyethyleneimine modified magnetic yeast composites for the removal of uranium with various background ions. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07846-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Arora G, Yadav M, Gaur R, Gupta R, Yadav P, Dixit R, Sharma RK. Fabrication, functionalization and advanced applications of magnetic hollow materials in confined catalysis and environmental remediation. NANOSCALE 2021; 13:10967-11003. [PMID: 34160507 DOI: 10.1039/d1nr01010g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Magnetic hollow-structured functional hybrid materials with unique architectures and preeminent properties have always been an area of extensive research. They represent a subtle collaboration of hollow architecture, mesoporous nanostructure and magnetic character. Owing to the merits of a large void space, low density, high specific surface area, well-defined active sites and facile magnetic recovery, these materials present promising application projections in numerous fields, such as drug delivery, adsorption, storage, catalysis and many others. In this review, recent progress in the design, synthesis, functionalization and applications of magnetic hollow-meso/nanostructured materials are discussed. The first part of the review has been dedicated to the preparation and functionalization of the materials. The synthetic protocols have been broadly classified into template-assisted and template-free methods and major trends in their synthesis have been elaborated in detail. Furthermore, the benefits and drawbacks of each method are compared. The later part summarizes the application aspects of confined catalysis in organic transformations and environmental remediation such as degradation of organic pollutants, dyes and antibiotics and adsorption of heavy metal ions. Finally, an outlook of future directions in this research field is highlighted.
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Affiliation(s)
- Gunjan Arora
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, Delhi-110007, India.
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10
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Verma PK, Mohapatra PK. Luminescence spectroscopic investigations of europium complexes formed in the kaolinite-humic acid/citric acid systems. RADIOCHIM ACTA 2020. [DOI: 10.1515/ract-2019-3148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present study, the nature of Eu(III) complexes (Eu(III) was used as a surrogate for Am(III)) formed in kaolinite–humic acid (HA)/citric acid (CA) system was investigated by luminescence spectroscopy. In addition to the ternary system (kaolinite + Eu + L(CA/HA)), the binary system (Eu-L) was also looked at for a better understanding of the complexes formed at the kaolinite surface. The lifetime and emission spectra of Eu-L complexes on the kaolinite surface differ considerably as compared to the same in the aqueous phase. The Eu-HA aqueous complexation shows differences in the excitation spectra with similar decay lifetimes with increasing aqueous HA concentrations. The ligand-to-metal charger transfer (LMCT) in the Eu-HA excitation spectra suggests the complexation of Eu(III) with HA at pH ∼ 4. Although the mode of Eu(III) binding to the kaolinite surface in the presence of CA/HA was the same i.e. metal-bridged ternary complex formation, the local surroundings around the sorbed Eu(III) differ in the two cases. The loading of HA in the Eu-HA-kaolinite system does not have a large effect on the local structure around the sorbed Eu(III) ion, but enhances the percentage of Eu(III) uptake onto the kaolinite surface. The number of H2O molecules in the primary hydration sphere of sorbed Eu(III) differs in the Eu-HA-kaolinite and Eu-CA-kaolinite systems. In addition, Eu(III) assisted precipitation of HA was also seen using a radiometric method.
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Affiliation(s)
- Parveen Kumar Verma
- Radiochemistry Division, Bhabha Atomic Research Centre , Trombay , Mumbai , 400085 , India
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11
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Volkov IV, Polyakov EV. Interaction of Humic Acids with Microelements/Radionuclides in Sorption Systems. RADIOCHEMISTRY 2020. [DOI: 10.1134/s1066362220020010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Duan Q, Li X, Wu Z, Alsaedi A, Hayat T, Chen C, Li J. Adsorption of 17β-estradiol from aqueous solutions by a novel hierarchically nitrogen-doped porous carbon. J Colloid Interface Sci 2019; 533:700-708. [DOI: 10.1016/j.jcis.2018.09.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 09/02/2018] [Accepted: 09/03/2018] [Indexed: 01/18/2023]
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13
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Investigation of the adsorption mechanisms of Pb(II) and 1-naphthol by β-cyclodextrin modified graphene oxide nanosheets from aqueous solution. J Colloid Interface Sci 2018; 530:154-162. [DOI: 10.1016/j.jcis.2018.06.083] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/22/2018] [Accepted: 06/26/2018] [Indexed: 11/19/2022]
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14
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Huang X, Yang J, Wang J, Bi J, Xie C, Hao H. Design and synthesis of core-shell Fe 3O 4@PTMT composite magnetic microspheres for adsorption of heavy metals from high salinity wastewater. CHEMOSPHERE 2018; 206:513-521. [PMID: 29778076 DOI: 10.1016/j.chemosphere.2018.04.184] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/27/2018] [Accepted: 04/29/2018] [Indexed: 05/22/2023]
Abstract
In this study, a novel magnetic nanoparticles (MNP) modified by an organodisulfide polymer (PTMT) was designed for adsorption of heavy metals (Hg(II), Pb(II) and Cd(II)) from simulated coal chemical high salinity wastewater. The MNP-PTMT nano-composite was synthesize and characterized by SEM, TEM, FTIR, BET, VSM, TGA and XRD. The results indicate that the wanted MNP-PTMT magnetic nanoparticles were successfully obtained by modification. Adsorption experiments were systematically carried out to evaluate the performance of the obtained nanoparticles and to build up the adsorption models. The results demonstrate that the adsorption kinetic and isotherms thermodynamic followed the pseudo-second-order model and the Freundlich equation, respectively. In the presence of the inorganic salt in high salinity wastewater, the adsorption efficiency of MNP-PTMT for heavy metals was still excellent. The magnetic adsorbent could be recovered from aqueous solution by an external magnetic field in 20s and the subsequent regeneration of Hg(II)/Pb(II) loaded MNP-PTMT can be efficiently achieved by using EDTA-2Na solution as desorbent. The novel MNP-PTMT nanoparticles could be used reproductively for five times without apparent decrease in sorption capacity.
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Affiliation(s)
- Xin Huang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Tianjin 300072, China.
| | - Jinyue Yang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jingkang Wang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Tianjin 300072, China
| | - Jingtao Bi
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Chuang Xie
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Tianjin 300072, China
| | - Hongxun Hao
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Tianjin 300072, China.
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15
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Li J, Wang X, Zhao G, Chen C, Chai Z, Alsaedi A, Hayat T, Wang X. Metal-organic framework-based materials: superior adsorbents for the capture of toxic and radioactive metal ions. Chem Soc Rev 2018; 47:2322-2356. [PMID: 29498381 DOI: 10.1039/c7cs00543a] [Citation(s) in RCA: 875] [Impact Index Per Article: 145.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Highly efficient removal of metal ion pollutants, such as toxic and nuclear waste-related metal ions, remains a serious task from the biological and environmental standpoint because of their harmful effects on human health and the environment. Recently, highly porous metal-organic frameworks (MOFs), with excellent chemical stability and abundant functional groups, have represented a new addition to the area of capturing various types of hazardous metal ion pollutants. This review focuses on recent progress in reported MOFs and MOF-based composites as superior adsorbents for the efficient removal of toxic and nuclear waste-related metal ions. Aspects related to the interaction mechanisms between metal ions and MOF-based materials are systematically summarized, including macroscopic batch experiments, microscopic spectroscopy analysis, and theoretical calculations. The adsorption properties of various MOF-based materials are assessed and compared with those of other widely used adsorbents. Finally, we propose our personal insights into future research opportunities and challenges in the hope of stimulating more researchers to engage in this new field of MOF-based materials for environmental pollution management.
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Affiliation(s)
- Jie Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, P. R. China.
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16
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Boubakri S, Djebbi MA, Bouaziz Z, Namour P, Ben Haj Amara A, Ghorbel-Abid I, Kalfat R. Nanoscale zero-valent iron functionalized Posidonia oceanica marine biomass for heavy metal removal from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:27879-27896. [PMID: 28988320 DOI: 10.1007/s11356-017-0247-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 09/19/2017] [Indexed: 06/07/2023]
Abstract
Because of the excellent reducing capacity of nanoscale zero-valent iron (NZVI), it can be used as alternative materials for the removal of a variety of reducible water contaminants including toxic metals. The current paper reports the research results obtained for self-prepared biosorbent, Posidonia oceanica biomass, activated in alkaline medium and functionalized with NZVI particles. The structural characteristics, surface morphology, and binding properties of the resulting nanobiosorbent are presented. Batch comparative adsorption trials including adsorption kinetics and isothermals onto raw Posidonia, Posidonia-OH and Posidonia-OH-NZVI were investigated on three heavy metal ions: Cd(II), Pb(II), and Cu(II). The nanobiosorbent showed better properties, such as high reactivity and high uptake rate through the sorption process. The toxic metal removal has been monitored in terms of pseudo-first- and pseudo-second-order kinetics, and both Langmuir- and Freundlich-type isotherm models have been used to describe the sorption mechanism. The experimental data of all studied systems showed that the uptake kinetics follow the pseudo-second-order kinetic model and the equilibrium uptake can adopt the Langmuir-type isotherm model which assumes a monolayer coverage as the adsorption saturates and no further adsorption occurs. The thermodynamic results confirm that all sorption processes were feasible, spontaneous and thermodynamically favorable. Zeta potential data displayed that Cd(II), Pb(II), and Cu(II) tend to be reduced after exposure on the Posidonia-OH-NZVI surface. Furthermore, sorption competitions of the metals from binary and ternary systems were carried out onto Posidonia-OH-NZVI in order to gain further insight into the sorption efficiency of this material. Therefore, as a result, the proposed new nanobiosorbent could offer potential benefits in remediation of heavy metal-contaminated water as a green and environmentally friendly bionanocomposite.
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Affiliation(s)
- Saber Boubakri
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique, BiotechPole Sidi-Thabet, 2020, Ariana, Tunisia
- Laboratoire des Applications de la Chimie aux Ressources et Substances Naturelles et a l'Environnement, Universite de Carthage, Faculté des Sciences de Bizerte, 7021, Zarzouna, Tunisia
| | - Mohamed Amine Djebbi
- Laboratoire de Physique des Materiaux Lamellaires et Nanomatériaux Hybrides, Faculte des Sciences de Bizerte, Université de Carthage, 7021, Zarzouna, Tunisia.
- Institut des Sciences Analytiques UMR CNRS 5280, Université de Lyon, 5 rue de la Doua, 69100, Villeurbanne, France.
- Irstea, Université de Lyon, 5 rue de la Doua, 69100, Villeurbanne, France.
| | - Zaineb Bouaziz
- Laboratoire de Physique des Materiaux Lamellaires et Nanomatériaux Hybrides, Faculte des Sciences de Bizerte, Université de Carthage, 7021, Zarzouna, Tunisia
| | - Philippe Namour
- Irstea, Université de Lyon, 5 rue de la Doua, 69100, Villeurbanne, France
| | - Abdesslem Ben Haj Amara
- Laboratoire de Physique des Materiaux Lamellaires et Nanomatériaux Hybrides, Faculte des Sciences de Bizerte, Université de Carthage, 7021, Zarzouna, Tunisia
| | - Ibtissem Ghorbel-Abid
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique, BiotechPole Sidi-Thabet, 2020, Ariana, Tunisia
| | - Rafik Kalfat
- Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d'Analyse Physico-chimique, BiotechPole Sidi-Thabet, 2020, Ariana, Tunisia
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17
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Liu G, Mei H, Zhu H, Fang M, Alharbi NS, Hayat T, Chen C, Tan X. Investigation of U(VI) sorption on silica aerogels: Effects of specific surface area, pH and coexistent electrolyte ions. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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18
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Li M, Liu H, Chen T, Hayat T, Alharbi NS, Chen C. Adsorption of Europium on Al-substituted goethite. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.04.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Zou Y, Wang X, Khan A, Wang P, Liu Y, Alsaedi A, Hayat T, Wang X. Environmental Remediation and Application of Nanoscale Zero-Valent Iron and Its Composites for the Removal of Heavy Metal Ions: A Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:7290-304. [PMID: 27331413 DOI: 10.1021/acs.est.6b01897] [Citation(s) in RCA: 582] [Impact Index Per Article: 72.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The presence of heavy metals in the industrial effluents has recently been a challenging issue for human health. Efficient removal of heavy metal ions from environment is one of the most important issues from biological and environmental point of view, and many studies have been devoted to investigate the environmental behavior of nanoscale zerovalent iron (NZVI) for the removal of toxic heavy metal ions, present both in the surface and underground wastewater. The aim of this review is to show the excellent removal capacity and environmental remediation of NZVI-based materials for various heavy metal ions. A new look on NZVI-based materials (e.g., modified or matrix-supported NZVI materials) and possible interaction mechanism (e.g., adsorption, reduction and oxidation) and the latest environmental application. The effects of various environmental conditions (e.g., pH, temperature, coexisting oxy-anions and cations) and potential problems for the removal of heavy metal ions on NZVI-based materials with the DFT theoretical calculations and EXAFS technology are discussed. Research shows that NZVI-based materials have satisfactory removal capacities for heavy metal ions and play an important role in the environmental pollution cleanup. Possible improvement of NZVI-based materials and potential areas for future applications in environment remediation are also proposed.
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Affiliation(s)
- Yidong Zou
- School of Environment and Chemical Engineering, North China Electric Power University , Beijing 102206, P. R. China
- School of Chemistry, Biological and Materials Sciences, East China Institute of Technology , Nanchang, 330013, P. R. China
| | - Xiangxue Wang
- School of Environment and Chemical Engineering, North China Electric Power University , Beijing 102206, P. R. China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Jiangsu, P.R. China
| | - Ayub Khan
- School of Environment and Chemical Engineering, North China Electric Power University , Beijing 102206, P. R. China
| | - Pengyi Wang
- School of Environment and Chemical Engineering, North China Electric Power University , Beijing 102206, P. R. China
| | - Yunhai Liu
- School of Chemistry, Biological and Materials Sciences, East China Institute of Technology , Nanchang, 330013, P. R. China
| | - Ahmed Alsaedi
- NAAM Research Group, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
| | - Tasawar Hayat
- NAAM Research Group, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
- Department of Mathematics, Quaid-I-Azam University , Islamabad 44000, Pakistan
| | - Xiangke Wang
- School of Environment and Chemical Engineering, North China Electric Power University , Beijing 102206, P. R. China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Jiangsu, P.R. China
- NAAM Research Group, Faculty of Science, King Abdulaziz University , Jeddah 21589, Saudi Arabia
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20
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Zou Y, Wang X, Khan A, Wang P, Liu Y, Alsaedi A, Hayat T, Wang X. Environmental Remediation and Application of Nanoscale Zero-Valent Iron and Its Composites for the Removal of Heavy Metal Ions: A Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:7290-7304. [DOI: https:/doi.org/10.1021/acs.est.6b01897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
Affiliation(s)
- Yidong Zou
- School
of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, P. R. China
- School
of Chemistry, Biological and Materials Sciences, East China Institute of Technology, Nanchang, 330013, P. R. China
| | - Xiangxue Wang
- School
of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, P. R. China
- Collaborative Innovation
Center of Radiation Medicine of Jiangsu Higher Education Institutions Jiangsu, P.R. China
| | - Ayub Khan
- School
of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Pengyi Wang
- School
of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Yunhai Liu
- School
of Chemistry, Biological and Materials Sciences, East China Institute of Technology, Nanchang, 330013, P. R. China
| | - Ahmed Alsaedi
- NAAM
Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Tasawar Hayat
- NAAM
Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department
of Mathematics, Quaid-I-Azam University, Islamabad 44000, Pakistan
| | - Xiangke Wang
- School
of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, P. R. China
- Collaborative Innovation
Center of Radiation Medicine of Jiangsu Higher Education Institutions Jiangsu, P.R. China
- NAAM
Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Adsorption characteristics of Eu(III) and Th(IV) ions onto modified mesoporous silica SBA-15 materials. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.11.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Verma PK, Mohapatra PK. Effect of different complexing ligands on europium uptake from aqueous phase by kaolinite: batch sorption and fluorescence studies. RSC Adv 2016. [DOI: 10.1039/c6ra17984c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The fluorescence studies suggested that the Eu(iii) sorbs as Eu(iii)–oxalate complex (binary system) onto kaolinite surface in the ternary system of Eu(iii), oxalic acid and kaolinite at circumneutral pH conditions.
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Xu H, Li G, Li J, Chen C, Ren X. Interaction of Th(IV) with graphene oxides: Batch experiments, XPS investigation, and modeling. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.11.022] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Chen Z, Lu S. Investigation of the effect of pH, ionic strength, foreign ions, temperature, soil humic substances on the sorption of 152+154Eu(III) onto NKF-6 zeolite. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4615-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Shen C, Chen C, Wen T, Zhao Z, Wang X, Xu A. Superior adsorption capacity of g-C3N4 for heavy metal ions from aqueous solutions. J Colloid Interface Sci 2015; 456:7-14. [DOI: 10.1016/j.jcis.2015.06.004] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 05/19/2015] [Accepted: 06/02/2015] [Indexed: 10/23/2022]
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26
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27
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Yu S, Wang X, Tan X, Wang X. Sorption of radionuclides from aqueous systems onto graphene oxide-based materials: a review. Inorg Chem Front 2015. [DOI: 10.1039/c4qi00221k] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Graphene oxide-based nanomaterials are suitable materials for the preconcentration of radionuclides and heavy metal ions from aqueous solutions in environmental pollution cleanup.
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Affiliation(s)
- Shujun Yu
- Institute of Plasma Physics
- Chinese Academy of Sciences
- Hefei
- P.R. China
- University of Science and Technology of China
| | - Xiangxue Wang
- Institute of Plasma Physics
- Chinese Academy of Sciences
- Hefei
- P.R. China
- University of Science and Technology of China
| | - Xiaoli Tan
- Institute of Plasma Physics
- Chinese Academy of Sciences
- Hefei
- P.R. China
- School for Radiological and Interdisciplinary Sciences (RAD-X)
| | - Xiangke Wang
- School for Radiological and Interdisciplinary Sciences (RAD-X)
- Soochow University
- Suzhou
- P.R. China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions
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28
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Tan X, Ren X, Chen C, Wang X. Analytical approaches to the speciation of lanthanides at solid-water interfaces. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.06.010] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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U(VI) sorption on illite: effect of pH, ionic strength, humic acid and temperature. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3385-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Verma PK, Pathak PN, Mohapatra PK, Godbole SV, Kadam RM, Veligzhanin AA, Zubavichus YV, Kalmykov SN. Influences of different environmental parameters on the sorption of trivalent metal ions on bentonite: batch sorption, fluorescence, EXAFS and EPR studies. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:904-915. [PMID: 24531276 DOI: 10.1039/c3em00563a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The presence of long-lived radionuclides in natural aquatic systems is of great environmental concern in view of their possible migration into biospheres of mankind. Trivalent actinides such as (241/243)Am can contribute a great deal to radioactivity for several thousand years. This migration is significantly influenced by various factors such as pH, complexing ions present in aquatic environments, and the sorption of species involving radionuclides by sediments around water bodies. Clay minerals such as bentonite are known to be highly efficient in radionuclide retention and hence are suitable candidates for backfill materials. This study presents experimental results on the interaction of Eu(iii) and Gd(iii) (chemical analogs of Am(iii) and Cm(iii)) with bentonite clay under varying experimental conditions of contact time, pH, and the presence of complexing anions such as humic acid (HA) and citric acid (cit). The sorption of HA on bentonite decreased with increasing the pH from 2 to 8, which was attributed to electrostatic interactions between HA and the bentonite surfaces. The sorption of Eu(iii) on bentonite colloids showed marginal variation with pH (>95%). However, a decrease in Eu(iii) sorption was observed in the presence of HA beyond pH 5 due to the increased aqueous complexation of Eu(iii) with deprotonated HA in the aqueous phase. The complexation of Eu(iii) with citrate ions was studied using Time Resolved Laser induced Fluorescence Spectroscopy (TRLFS) to explain the sorption data. Extended X-ray absorption fine structure (EXAFS) and electron paramagnetic resonance (EPR) investigations were carried out to understand the local chemical environment surrounding Eu(iii) and Gd(iii) (EPR probe) sorbed on bentonite under different experimental conditions. Surface complexation modelling shows the predominant formation of ≡XOEu(+2) (silanol) up to pH < 7, and beyond which ≡YOEu(OH)(+) (aluminol) is responsible for the quantitative sorption of Eu(iii) onto bentonite in the studied pH range.
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Affiliation(s)
- P K Verma
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.
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31
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Xiao J, Zhao L, Zhang W, Liu X, Chen Y. Effect of pH, ionic strength, foreign ions, humic acid and temperature on Zn(II) sorption onto γ-Al2O3. KOREAN J CHEM ENG 2013. [DOI: 10.1007/s11814-013-0207-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Effect of pH, foreign ions and temperature on radionickel sorption onto bentonite from Inner Mongolia, China. J Radioanal Nucl Chem 2013. [DOI: 10.1007/s10967-013-2865-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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