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Fuxiang S, Na W, Qiangqiang Z, Jie W, Bin L. 3D printing calcium alginate adsorbents for highly efficient recovery of U(VI) in acidic conditions. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129774. [PMID: 35988488 DOI: 10.1016/j.jhazmat.2022.129774] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
In this study, a three-dimensional (3D) porous calcium alginate (3D CA) scaffold was successfully constructed using a direct-ink-writing-based 3D printing method combined with an in-situ calcium ion cross-linking procedure. The 3D CA contained orderly aligned microstructures with excellent structural robustness and an abundant number of active binding sites. The adsorption experiments verified that 3D CA had a considerably wide pH value (3-10) serving range, but also delivered a significantly higher adsorption capacity for U(VI) (117.3 mg/g at pH = 2.5) under acidic conditions, compared to other previously reported alginate-based porous adsorbents. The adsorption mechanisms originated from the synergistic effect of electrostatic interactions and ion exchange. The 3D CA eluted the adsorbed U(VI) in a strong acid solution through protonation mechanism, facilitating the continued enrichment and recycling of U(VI). In addition, the 3D CA demonstrated good microstructure stability and absorption capacity stability when it was immersed in hydrochloric acid solutions at different concentrations (3.6 × 10-3 to 2 mol/L) for 24 h. Therefore, the 3D CA could be used for the removal and recycling of U(VI) from acidic solutions beyond its wide pH working range, due to its stronger acid stability and higher U(VI) adsorption capacity.
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Affiliation(s)
- Song Fuxiang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China; Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Wang Na
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China; Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Zhang Qiangqiang
- College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, PR China; Key Laboratory of Mechanics on Disaster and Environment in Western China (Lanzhou University), The Ministry of Education of China, Lanzhou 730000, PR China.
| | - Weibo Jie
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Liu Bin
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China; Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
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Luo Z, Mu W, Zhou X, Chen Z. Removal and immobilization of arsenic from wastewater via arsenonatroalunite formation. ENVIRONMENTAL TECHNOLOGY 2022; 43:2881-2890. [PMID: 33755530 DOI: 10.1080/09593330.2021.1908428] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Removal and immobilization of highly toxic arsenic form industrial wastewater using simple and effective methods is of important practical significance. Although the formation of natroalunite phase NaAl3(SO4)2(OH)6 has been demonstrated to be an effective method for arsenic immobilization in model system with chemical reagent grade arsenates as arsenic source, the further study is needed to investigate its immobilization for real industrial wastewater. This work reported the synthesis of natroalunite phase NaAl3(SO4)2(OH)6 using arsenic-containing industrial wastewater from benzyl acid production. The synthesis temperature and time were optimized to obtain the pure natroalunite phase composites with high crystallinity. When n(Al/As)aq was greater than 3.0, the arsenic could almost precipitate exclusively as natroalunite phase after 60 min hydrothermal reaction at 200°C, with a maximum arsenic immobilization amount of 7.0 mol%. A maximum leaching concentration of 0.50 mg/L was observed at pH = 3.0 during the short-term (24 h) leaching test, which was lower than the US EPA TCLP test limit of 1 mg/L. The long-term leaching test up to 90 days revealed that the arsenonatroalunite could be a safe immobilization material for arsenic in pH 5.0-8.0 environments.
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Affiliation(s)
- Zhongqiu Luo
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Weihong Mu
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Xintao Zhou
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
- The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province, Kunming University of Science and Technology, Kunming, People's Republic of China
| | - Zhuo Chen
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, People's Republic of China
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Zhou G, Huang X, Xu H, Wang Q, Wang M, Wang Y, Li Q, Zhang Y, Ye Q, Zhang J. Removal of polystyrene nanoplastics from water by CuNi carbon material: The role of adsorption. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 820:153190. [PMID: 35051471 DOI: 10.1016/j.scitotenv.2022.153190] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/12/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Nanoplastics have attracted wide attention worldwide as a new potentially threatening pollutant, and they can cause harm to the organisms and pose threat to the water environment. Therefore, efficient removal techniques for nanoplastics are urgently needed. In this study, CuNi carbon material (CuNi@C) was prepared by hydrothermal method for the removal of polystyrene (PS) nanoplastics from water. CuNi@C was effectively adsorbed on PS nanoplastics. When the CuNi@C dosage increased from 0.1 g/L to 0.3 g/L, the removal efficiency of PS nanoplastics (10 mg/L) elevated from 32.72% to 99.18%. The images of the scanning electron microscope (SEM) and the Fourier transform infrared spectroscopy (FTIR) spectra of CuNi@C confirmed the adsorption of PS nanoplastics on the CuNi@C. The fitting results of adsorption kinetic models and isotherms equations demonstrated that physical adsorption and monolayer coverage were the predominant mechanisms of the PS nanoplastics adsorption on CuNi@C. Thermodynamics analysis illustrated the adsorption of PS nanoplastics on CuNi@C was a spontaneous and endothermic process. The electrostatic attraction occurred in adsorption progress, and the removal efficiency of PS nanoplastics in the acidic system was generally higher than that in the alkaline system. CuNi@C can be recycled via washing and drying treatment and these CuNi@C comparable PS nanoplastics removal performance to the original ones. After four times cycles, CuNi@C can still remove ~75% of total PS nanoplastics from water. This study reveals that CuNi@C can be used as promising techniques for the removal of PS nanoplastics from the aqueous environment.
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Affiliation(s)
- Guanyu Zhou
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Xue Huang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Hao Xu
- Environment and Sustainability Institute, University of Exeter, TR10 9FE Penryn, United Kingdom
| | - Qingguo Wang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China.
| | - Meijing Wang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Yunqi Wang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Qiansong Li
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Yujian Zhang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China
| | - Qian Ye
- School of Civil Engineering, University of Leeds, LS2 9JT Leeds, United Kingdom
| | - Jing Zhang
- College of Architecture & Environment, Sichuan University, Chengdu 610065, China; State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
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Hollow Fe3O4 nanospheres covered by phosphate-modified layered double hydroxides for the removal of uranium (VI) from water and soil. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120688] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Controlled Hydrothermal Precipitation of Alunite and Natroalunite in High-Aluminum Vanadium-Bearing Aqueous System. MINERALS 2021. [DOI: 10.3390/min11080892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
During the acid leaching process of black shale, with the destruction of the aluminosilicate mineral structure, a large amount of aluminum (Al) is leached, accompanied by the release of vanadium (V). To separate aluminum from the vanadium-containing solution, the precipitation behavior of aluminum ions (Al3+) was investigated under hydrothermal conditions with the formation of alunite and natroalunite. In the solution environment, alunite and natroalunite are able to form stably by the Al3+ hydrolysis precipitation process at a temperature of 200 °C, a pH value of 0.4 and a reaction time of 5 h. When Al3+ was precipitated at a K/Al molar ratio of 1, the aluminum precipitation efficiency and the vanadium precipitation efficiency were 64.77% and 1.72%, respectively. However, when Al3+ was precipitated at a Na/Al molar ratio of 1, the precipitation efficiency of the aluminum decreased to 48.71% and the vanadium precipitation efficiency increased to 4.36%. The thermodynamics and kinetics results showed that alunite forms more easily than natroalunite, and the reaction rate increases with increasing temperature, and the precipitation is controlled by the chemical reaction. Vanadium loss increases as the pH value increases. It can be deduced that the ion state of tetravalent vanadium (VO2+) was transformed into the ion state of pentavalent vanadium (VO2+) in the hydrothermal environment. The VO2+ can be adsorbed on the alunite or natroalunite as a result of their negative surface charges, ultimately leading to vanadium loss.
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Mei H, Liu Y, Tan X, Feng J, Ai Y, Fang M. U(VI) adsorption on hematite nanocrystals: Insights into the reactivity of {001} and {012} facets. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:123028. [PMID: 32521314 DOI: 10.1016/j.jhazmat.2020.123028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 05/10/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Predicting the environmental behavior of U(VI) relies on identification of its local coordination structure on mineral surfaces, which is also an indication of the intrinsic reactivity of the facet. We investigated the adsorption of U(VI) on two facets ({001} and {012}) of hematite (α-Fe2O3) by coupling experimental, spectroscopic and theoretical studies. Batch experiments results indicate higher removal capacity of the hematite {012} facet for U(VI) with respect to the {001} facet, due to the existence of extra singly and triply coordinated oxygen atoms with higher reactivity on the {012} facet while only doubly coordinated oxygen atoms exist on the {001} facet. The formation of surface complexes containing U(VI) is responsible for the appearance of a new sextuplet by Mössbauer spectra. The local structures of an inner-sphere edge-sharing bidentate complex on the hematite {001} and a corner-sharing complex on the {012} facet was deciphered by extended X-ray absorption fine structure spectroscopy. The chemical plausibility of the proposed structures was further verified by density functional theory calculation. This finding reveals the important influence of surficial hydroxyl groups reactivity on ions adsorption, which is helpful to better understand the interfacial interactions and to improve the prediction accuracy of U(VI) fate in aquatic environments.
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Affiliation(s)
- Huiyang Mei
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environment Science and Engineering, North China Electric Power University, Beijing, 102206, PR China; Nuclear Professional School, School of Engineering, The University of Tokyo, 2-22 Shirakata Shirane, Tokai-mura, Ibaraki, 319-1188, Japan
| | - Yang Liu
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environment Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Xiaoli Tan
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environment Science and Engineering, North China Electric Power University, Beijing, 102206, PR China; Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt lakes, Chinese Academy of Sciences, Xining 810008, P.R. China.
| | - Jinghua Feng
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environment Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Yuejie Ai
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environment Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Ming Fang
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environment Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
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Wang H, Zhou Y, Hu X, Guo Y, Cai X, Liu C, Wang P, Liu Y. Optimization of Cadmium Adsorption by Magnetic Graphene Oxide Using a Fractional Factorial Design. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E6648. [PMID: 32933079 PMCID: PMC7559111 DOI: 10.3390/ijerph17186648] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/04/2020] [Accepted: 09/09/2020] [Indexed: 11/17/2022]
Abstract
Graphene materials have attracted increasing interest in water remediation. In this study, magnetic graphene oxide (MGO) was prepared through the modified Hummers method and the adsorption behaviors of cadmium were investigated. Firstly, the sorption kinetics, isotherms, as well as the effects of pH were investigated. Then, fractional factorial design (FFD) was used to optimize the effects of pH, temperature, time, initial concentration of cadmium ion and NaCl on cadmium adsorption. The results indicate that MGO could effectively remove cadmium ions from an aqueous solution and the sorption data could be described well by pseudo-second-order and Freundlich models, showing that the adsorption rate of cadmium ions on MGO is multilayer adsorption and dominated by the chemical adsorption. According to the FFD results, the maximum adsorption capacity of cadmium ions was 13.169 mg/g under the optimum condition of pH value 8, 45 °C, contact time 60 min, initial cadmium concentration of 70 mg/L and NaCl concentration of 100 mg/L. Higher levels of the pH value, temperature and initial cadmium concentration are beneficial to the adsorption process. These results are important for estimating and optimizing the removal of metal ions by MGO composite.
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Affiliation(s)
- Hui Wang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (H.W.); (Y.Z.); (X.H.)
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yiming Zhou
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (H.W.); (Y.Z.); (X.H.)
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xinjiang Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (H.W.); (Y.Z.); (X.H.)
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yuan Guo
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China; (Y.G.); (C.L.)
| | - Xiaoxi Cai
- College of Art and Design, Hunan First Normal University, Changsha 410205, China;
| | - Chunjie Liu
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China; (Y.G.); (C.L.)
| | - Ping Wang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (H.W.); (Y.Z.); (X.H.)
- Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
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Wang D, Xu Y, Xiao D, Qiao Q, Yin P, Yang Z, Li J, Winchester W, Wang Z, Hayat T. Ultra-thin iron phosphate nanosheets for high efficient U(VI) adsorption. JOURNAL OF HAZARDOUS MATERIALS 2019; 371:83-93. [PMID: 30849574 PMCID: PMC6759232 DOI: 10.1016/j.jhazmat.2019.02.091] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 02/03/2019] [Accepted: 02/25/2019] [Indexed: 05/06/2023]
Abstract
In this study, the ultra-thin iron phosphate Fe7(PO4)6 nanosheets (FP1) with fine-controlled morphology, has been designed as a new two-dimensional (2D) material for uranium adsorption. Due to its unique high accessible 2D structure, atom-dispersed phosphate/iron anchor groups and high specific surface area (27.77 m2⋅g-1), FP1 shows an extreme-high U(VI) adsorption capacity (704.23 mg·g-1 at 298 K, pH = 5.0 ± 0.1), which is about 27 times of conventional 3D Fe7(PO4)6 (24.51 mg·g-1 -sample FP2) and higher than most 2D absorbent materials, showing a great value in the treatment of radioactive wastewater. According to the adsorption results, the sorption between U(VI) and FP1 is spontaneous and endothermic, and can be conformed to single molecular layer adsorption. Based on the analyses of FESEM, EDS, Mapping, FT-IR and XRD after adsorption, the possibile adsorption mechanism can be described as a Monolayer Surface Complexation and Stacking mode (MSCS-Mode). Additionally, the research not only provide a novel preparing method for 2D phosphate materials but also pave a new pathway to study other two-dimensional adsorption materials.
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Affiliation(s)
- De Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Yanbin Xu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China.
| | - Difei Xiao
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Qingan Qiao
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Ping Yin
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Zhenglong Yang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Jiaxing Li
- CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, PR China.
| | - William Winchester
- Chemistry Department, Xavier University of Louisiana, New Orleans, LA, 70125, USA
| | - Zhe Wang
- Chemistry Department, Xavier University of Louisiana, New Orleans, LA, 70125, USA.
| | - Tasawar Hayat
- NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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9
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Lv Z, Wang H, Chen C, Yang S, Chen L, Alsaedi A, Hayat T. Enhanced removal of uranium(VI) from aqueous solution by a novel Mg-MOF-74-derived porous MgO/carbon adsorbent. J Colloid Interface Sci 2019; 537:A1-A10. [DOI: 10.1016/j.jcis.2018.11.062] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/14/2018] [Accepted: 11/15/2018] [Indexed: 10/27/2022]
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10
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Wang W, Xu H, Ren X, Deng L. Interfacial interaction of graphene oxide with Na-montmorillonite and its effect on the U(VI) retention properties of Na-montmorillonite. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Hashim KS, Al Khaddar R, Jasim N, Shaw A, Phipps D, Kot P, Pedrola MO, Alattabi AW, Abdulredha M, Alawsh R. Electrocoagulation as a green technology for phosphate removal from river water. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.07.056] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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12
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Kim T, Li Y, Yun H, Ho J, Jon Y, O S, Kim C, Li Y, Wang J, Liu X. Hydrothermal synthesis of natroalunite nanostructures and their F−-ion removal properties in water. CrystEngComm 2019. [DOI: 10.1039/c9ce00849g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation and growth mechanism of alunite crystallites by ionic liquid-assisted hydrothermal process was investigated.
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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: 82] [Impact Index Per Article: 11.7] [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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Wang D, Zhang G, Dai Z, Zhou L, Bian P, Zheng K, Wu Z, Cai D. Sandwich-like Nanosystem for Simultaneous Removal of Cr(VI) and Cd(II) from Water and Soil. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18316-18326. [PMID: 29733194 DOI: 10.1021/acsami.8b03379] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, a novel nanosystem with a sandwich-like structure was synthesized via face-to-face combination of two pieces of waste cotton fabrics (CFs) carrying ferrous sulfide (FeS) and carboxyl-functionalized ferroferric oxide microsphere (CFFM), respectively, and the obtained nanosystem was named as FeS/CFFM/CF. Therein, FeS has high reduction and adsorption capabilities for hexavalent chromium (Cr(VI)), CFFM possesses a high adsorption ability on cadmium ion (Cd(II)) through electrostatic attraction and chelation, and CF displays high immobilization ability for FeS and CFFM and adsorption performance on Cd(II). FeS/CFFM/CF could simultaneously remove Cr(VI) and Cd(II) from water and inhibit the uptake of Cr and Cd by fish and water spinach, ensuring the food safety. Besides, this technology could efficiently control the migration of Cr(VI) and Cd(II) in the sand-soil mixture, which was favorable to prevent their wide diffusion. Importantly, FeS/CFFM/CF possessed a high flexibility and could be conveniently produced with needed scale and shape and easily separated from water and soil, displaying a promising approach to remediate Cr(VI)-/Cd(II)-contaminated water and soil and a huge application potential.
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Affiliation(s)
- Dongfang Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
| | - Guilong Zhang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
| | - Zhangyu Dai
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
| | - Linglin Zhou
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
| | - Po Bian
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
| | - Kang Zheng
- Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
| | - Zhengyan Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
| | - Dongqing Cai
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei , Anhui 230031 , People's Republic of China
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15
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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: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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16
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Xu H, Hu J, Ren X, Li G. Macroscopic and microscopic insight into the mutual effects of europium(iii) and phosphate on their interaction with graphene oxide. RSC Adv 2016. [DOI: 10.1039/c6ra18629g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphene oxide (GO) has been proved to be very efficient for radionuclide enrichment.
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Affiliation(s)
- Huan Xu
- School of Physics and Materials Science
- Anhui University
- Hefei 230601
- P. R. China
- Institute of Plasma Physics
| | - Jun Hu
- School of Electronic Engineering
- Dongguan University of Technology
- Dongguan 523808
- P. R. China
| | - Xuemei Ren
- Institute of Plasma Physics
- Chinese Academy of Sciences
- Hefei 230031
- P. R. China
| | - Guang Li
- School of Physics and Materials Science
- Anhui University
- Hefei 230601
- P. R. China
- Anhui Key Laboratory of Information Materials and Devices
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