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Wang Y, Yan X, Zhang Y, Qin X, Yu X, Jiang L, Li B. Efficient Removal of Nickel from Wastewater Using Copper Sulfate-Ammonia Complex Modified Activated Carbon: Adsorption Performance and Mechanism. Molecules 2024; 29:2405. [PMID: 38792266 PMCID: PMC11124251 DOI: 10.3390/molecules29102405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/04/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
The necessity to eliminate nickel (Ni) from wastewater stems from its environmental and health hazards. To enhance the Ni adsorption capacity, this research applied a copper sulfate-ammonia complex (tetraamminecopper (II) sulfate monohydrate, [Cu(NH3)4]SO4·H2O) as a modifying agent for a Phragmites australis-based activated carbon preparation. The physiochemical properties of powdered activated carbon (PAC) and a modified form ([Cu(NH3)4]-PAC) were examined by measuring their surface areas, analyzing their elemental composition, and using Boehm's titration method. Batch experiments were conducted to investigate the impact of various factors, such as Ni(II) concentration, contact time, pH, and ionic strength, on its substance adsorption capabilities. Additionally, the adsorption mechanisms of Ni(II) onto activated carbon were elucidated via Fourier-transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The findings indicated that modified activated carbon ([Cu(NH3)4]-PAC) exhibited a lower surface area and total volume than the original activated carbon (PAC). The modification of PAC enhanced its surface's relative oxygen and nitrogen content, indicating the incorporation of functional groups containing these elements. Furthermore, the modified activated carbon, [Cu(NH3)4]-PAC, exhibited superior adsorption capacity relative to unmodified PAC. Both adsorbents' adsorption behaviors conformed to the Langmuir model and the pseudo-second-order kinetics model. The Ni(II) removal efficiency of PAC and [Cu(NH3)4]-PAC diminished progressively with rising ionic strength. Modified activated carbon [Cu(NH3)4]-PAC demonstrated notable pH buffering and adaptability. The adsorption mechanism for Ni(II) on activated carbon involves surface complexation, cation exchange, and electrostatic interaction. This research presents a cost-efficient preparation technique for preparing activated carbon with enhanced Ni(II) removal capabilities from wastewater and elucidates its underlying adsorption mechanisms.
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Affiliation(s)
- Yifei Wang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
- Department of Civil and Environmental Engineering E4130 Engineering Gateway Building, University of California, Irvine, CA 92697-2175, USA
| | - Xiaoxiao Yan
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Yidi Zhang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Xiaoxin Qin
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Xubiao Yu
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Li Jiang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
- College of Environmental and Resource Science, Zhejiang University, 866 Yuhuangtang Rd, Hangzhou 310058, China
| | - Bing Li
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
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Xie X, Chen H, Liu X, Fu Y, Liu Z, Shen F, Xiang K, Liu H. Synergy of copper vacancies and amorphous regions in copper sulfides enables superior capacity for Hg 0 adsorption. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132273. [PMID: 37832439 DOI: 10.1016/j.jhazmat.2023.132273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 10/15/2023]
Abstract
Adsorption is a high-efficiency and low-cost approach to control elemental mercury emission from industrial flue gas. However, the adsorption capacity is unsatisfactory due to its surface-only adsorption. In this work, a facile method was used for preparing the crystalline-amorphous co-existed copper sulfides (CA-CuS) with an abundance of copper vacancies and amorphous regions through temperature-controlled ultrasonic cavitation. The CA-CuS was used in the flue gas wet scrubbing and displayed outstanding Hg0 capture performance, achieving a removal efficiency of 99.8% and an adsorption capacity up to 573.8 mg·g-1 with a sulfur atomic utilization ratio of 27.5%. Experimental results and density functional theory (DFT) calculation verified that the copper vacancies at di-coordinated sites led to the formation of robust mercury binding sites (i.e., S2-(CN=3)) and unsaturated coordinated oxidizing sites (i.e., S22-). Meanwhile, the amorphous regions facilitated the internal migration of adsorbed mercury on the surface and promote the exchange with Cu2+ in the interior of adsorbents. The synergistic effect of copper vacancies and amorphous regions enables superior mercury adsorption capability and high atomic utilization.
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Affiliation(s)
- Xiaofeng Xie
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Hao Chen
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Xudong Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Yingxue Fu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zhilou Liu
- School of Metallurgical Engineering, JiangXi University of Science and Technology, Ganzhou 341000, China
| | - Fenghua Shen
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Kaisong Xiang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China.
| | - Hui Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China.
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Dong K, Jiang Y, Zhang Y, Qin Z, Mo L. Tannic acid-assisted fabrication of antibacterial sodium alginate-based gel beads for the multifunctional adsorption of heavy metal ions and dyes. Int J Biol Macromol 2023; 252:126249. [PMID: 37562481 DOI: 10.1016/j.ijbiomac.2023.126249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/17/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
The existence of heavy metals and dyes seriously affects the ecological environment and human safety. Antibacterial adsorption materials with the broad-spectrum removal of multiple pollutants are urgently required for water remediation. Herein, a sustainable and antibacterial sodium alginate (SA) gel bead adsorbent with honeycomb cellular architecture is developed by the biomimetic deposition polyphenolic tannic acid (TA) induced grafting diethylenetriamine (DETA) under mild conditions for efficient removal of Cr(VI) and dyes. Taking advantage of the catechol surface chemistry, TA occurring rapid polymerization with DETA monomers not only enhances the water resistance and thermal stability of the gel bead, but also introduces abundant polyphenolic functional groups and active adsorption sites. The multifunctional gel bead showed outstanding antibacterial activity against S. aureus (sterilization rates: 83.8 %) and E. coli (sterilization rates: 99.5 %). The maximum adsorption capacity of gel bead for Cr(VI) was 163.9 mg/g. Moreover, the removal efficiency of the gel bead for dyes of Safranine T and Rhodamine B was 89.5 % (maximum adsorption capacity: 537 mg/g) and 76.7 % (maximum adsorption capacity: 460.2 mg/g), respectively, indicating its excellent broad-spectrum adsorption performance for multiple pollutants. Therefore, TA-assisted fabrication of SA-based gel bead with excellent antibacterial property is a promising multifunctional adsorption material for practical water remediation.
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Affiliation(s)
- Kaiqiang Dong
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Yanling Jiang
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Yidan Zhang
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Zhiyong Qin
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China.
| | - Liuting Mo
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China.
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Kanwal S, Naeem HK, Batool F, Mirza A, Abdelrahman EA, Sharif G, Maqsood F, Mustaqeem M, Ditta A. Adsorption potential of orange rind-based nanosorbents for the removal of cadmium(II) and chromium(VI) from contaminated water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:110658-110673. [PMID: 37792184 DOI: 10.1007/s11356-023-30164-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/25/2023] [Indexed: 10/05/2023]
Abstract
Heavy metals (HMs) in water are highly poisonous and carcinogenic agents for human health. To alleviate the toxic impacts of HMs, green remediation technologies are the need of the hour. In this regard, different nanosorbents (CMCG@ORP, ORAC, NiO/NPs, and NiO@ORAC/NCs) were synthesized in the present study, and the percentage removal of heavy metals [chromium(VI) and cadmium(II) ions] was evaluated. The nanosorbents were characterized by using FTIR, SEM, UV-Vis spectroscopy, and XRD. UV-Vis spectroscopy confirmed the synthesis of nanosorbents such as NiO/NPs and NiO@ORAC/NCs at 330.5 nm and 352.55 nm, respectively. The characterization studies show that the surface of synthesized nano-sorbents was highly coarse, uneven, and abrasive. XRD pattern deduced that the sample was of single phase, and no other impurity was detected except the face-centered cubic-phase peak of NiO. The maximum adsorption of Cd (91%) and Cr (92%) was found at initial concentrations of 100 and 60 ppm respectively at contact time = 180 min, temperature 25 °C, and with an adsorbent dose of 0.5 g. Isothermal, kinetic, and thermodynamic studies were also performed to evaluate the adsorption mechanisms and feasibility of the process. Adsorption mostly followed Freundlich isotherm which indicates the multilayer adsorption phenomenon and the negative value of Gibb's free energy showed the spontaneous nature and feasibility of the adsorption reaction. Surface complexation, ion exchange, surface precipitation, and the phenomenon of physical adsorption occurred on the sorbent surface which led to the attachment of Cd and Cr to the tested nanosorbents. In conclusion, NiO@ORAC/NCs were the most effective in the alleviation of Cd(II) and Cr(VI) ions in contaminated water.
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Affiliation(s)
- Samia Kanwal
- Institute of Chemistry, Faculty of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Hafiza Komal Naeem
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Fozia Batool
- Institute of Chemistry, Faculty of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Awais Mirza
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Ehab A Abdelrahman
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 11623, Riyadh, Saudi Arabia
- Chemistry Department, Faculty of Science, Benha University, Benha, 13518, Egypt
| | - Gulnaz Sharif
- Department of Chemistry, Govt. Graduate College for Women, Mandi Bahauddin, Pakistan
| | - Farah Maqsood
- Department of Botany, University of Punjab, Lahore, Pakistan
| | - Muhammad Mustaqeem
- Institute of Chemistry, Faculty of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Allah Ditta
- Department of Environmental Sciences, Shaheed Benazir Bhutto University Sheringal, Dir (U), 18000, Khyber Pakhtunkhwa, Pakistan.
- School of Biological Sciences, The University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia.
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Hama Aziz KH, Mustafa FS, Omer KM, Hama S, Hamarawf RF, Rahman KO. Heavy metal pollution in the aquatic environment: efficient and low-cost removal approaches to eliminate their toxicity: a review. RSC Adv 2023; 13:17595-17610. [PMID: 37312989 PMCID: PMC10258679 DOI: 10.1039/d3ra00723e] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/02/2023] [Indexed: 06/15/2023] Open
Abstract
Heavy metal contamination of water sources has emerged as a major global environmental concern, threatening both aquatic ecosystems and human health. Heavy metal pollution in the aquatic environment is on the rise due to industrialization, climate change, and urbanization. Sources of pollution include mining waste, landfill leachates, municipal and industrial wastewater, urban runoff, and natural phenomena such as volcanic eruptions, weathering, and rock abrasion. Heavy metal ions are toxic, potentially carcinogenic, and can bioaccumulate in biological systems. Heavy metals can cause harm to various organs, including the neurological system, liver, lungs, kidneys, stomach, skin, and reproductive systems, even at low exposure levels. Efforts to find efficient methods to remove heavy metals from wastewater have increased in recent years. Although some approaches can effectively remove heavy metal contaminants, their high preparation and usage costs may limit their practical applications. Many review articles have been published on the toxicity and treatment methods for removing heavy metals from wastewater. This review focuses on the main sources of heavy metal pollution, their biological and chemical transformation, toxicological impacts on the environment, and harmful effects on the ecosystem. It also examines recent advances in cost-effective and efficient techniques for removing heavy metals from wastewater, such as physicochemical adsorption using biochar and natural zeolite ion exchangers, as well as decomposition of heavy metal complexes through advanced oxidation processes (AOPs). Finally, the advantages, practical applications, and future potential of these techniques are discussed, along with any challenges and limitations that must be considered.
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Affiliation(s)
- Kosar Hikmat Hama Aziz
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
- Medical Laboratory Analysis Department, College of health sciences, Cihan University-Sulaimaniya Sulaimaniya 46001 Kurdistan region Iraq
| | - Fryad S Mustafa
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Khalid M Omer
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Sarkawt Hama
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Rebaz Fayaq Hamarawf
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Kaiwan Othman Rahman
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
- Razga Company Sulaimani City 46001 Kurdistan Region Iraq
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Yao T, Long J, Duan Y, Gupta R, Xu Z. Effecting pattern study of SO 2 on Hg 0 removal over α-MnO 2 in-situ supported magnetic composite. JOURNAL OF HAZARDOUS MATERIALS 2023; 450:131088. [PMID: 36857829 DOI: 10.1016/j.jhazmat.2023.131088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/12/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
α-MnO2 was in-situ supported onto silica coated magnetite nanoparticles (MagS-Mn) to study the adsorption and oxidation of Hg0 as well as the effecting patterns of SO2 and O2 on Hg0 removal. MagS-Mn showed Hg0 removal capacity of 1122.6 μg/g at 150 °C with the presence of SO2. Hg0 adsorption and oxidation efficiencies were 2.4% and 90.6%, respectively. Hg0 removal capability deteriorated at elevated temperatures. Surface oxygen and manganese chemistry analysis indicated that SO2 inhibited the Hg0 removal through consumption of adsorbed oxygen and reduction of high valence manganese. This inhibiting effect was observed to be counteracted by O2 at lower temperatures. O2 tended to compete with SO2 for active sites and further create additional adsorbed oxygen sites for Hg0 surface reaction via surface dissociative adsorption rather than replenish the active sites consumed by SO2. The high valence manganese was also preserved by O2 which was essential to Hg0 oxidation. The intervention of O2 in the inhibition of SO2 on Hg0 removal was weakened at temperatures higher than 250 °C. Aa a result, Hg0 tends to be catalytic oxidized in the condition of low reaction temperatures and with the presence of O2 over α-MnO2 oriented composites.
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Affiliation(s)
- Ting Yao
- Shanghai SUS Environment Co., LTD., Shanghai 201703, China; Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China; Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Jisheng Long
- Shanghai SUS Environment Co., LTD., Shanghai 201703, China
| | - Yufeng Duan
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
| | - Rajender Gupta
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Zhenghe Xu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada; Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
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Elbarbary AM, Sharaf El-Deen SEA, Abu Elgoud EM, Sharaf El-Deen GE. Radiation fabrication of hybrid activated carbon and functionalized terpolymer hydrogel for sorption of Eu(III) and Sm(III) ions. RADIOCHIM ACTA 2023. [DOI: 10.1515/ract-2023-0127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Abstract
In this work, a hybrid composite of activated carbon (AC) functionalized with terpolymer hydrogel of polyvinyl alcohol/polyacrylamide/polyacrylic acid (PVA/PAAm/PAA) was prepared by γ-irradiation and used efficiently for sorption of Eu(III) and Sm(III) ions from aquatic solutions. Sewage sludge from the wastewater treatment plant was used to prepare AC, then activated by zinc chloride (ZnCl2) and thermal treatment at 550 °C. The modification of AC by functionalized terpolymer has successfully occurred mainly to limit its precipitation and to increase its adsorption capacity which allowed capable interaction with the metal ions. Different advanced techniques were used to investigate the structure and properties of (PVA/PAAm/PAA)/AC composite before and after the sorption process. Using 20 kGy is sufficient to get gel fraction of 87.5% and equilibrium swelling was 39.1 g/g. The (PVA/PAm/PAA)/AC composite hydrogel showed a pHpzc at pH ∼3. FTIR and EDS confirmed the successful integration of the functional groups and constituent elements of AC into terpolymer hydrogel components. XRD results confirmed the typical diffraction peaks of AC in the composite and the calculated average crystallite size was 167.4 nm. The SEM morphology of AC appeared as grains distributed well into the composite. The effect of synthesized AC, PVA/PAAm/PAA and (PVA/PAAm/PAA)/AC sorbents were tested to uptake of Eu(III) and Sm(III) ions. The highest uptake was noticed for (PVA/PAAm/PAA)/AC composite and it was selected for studying the parameters affecting the sorption process such as pH, shaking time, initial concentration, and adsorbent dosage. Results of the experimental data showed that Langmuir isotherm and Pseudo-second-order kinetic models fit well the sorption process of both Eu(III) and Sm(III) ions with maximum sorption capacities of 173.24 and 160.41 mg/g and uptake percentage of 82.3% and 83.4%, respectively at the optimum conditions of pH 4, 180 min, 100 mg/L metal concentration and 0.01 g adsorbent mass. The thermodynamic parameters indicated endothermic and spontaneous nature of the sorption process. Additionally, the as-prepared composite afford high selectivity and uptake capacity for Eu(III) and Sm(III) ions at pH 4 even in the presence of competing cations; Cd(II), Co(II), Sr(II) and Cs(I). The (PVA/PAAm/PAA)/AC composite was used efficiently as a unique and selective adsorbent for the sorption of Eu(III) and Sm(III) ions.
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