101
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Functionalized boron nitride nanosheet as a membrane for removal of Pb2+ and Cd2+ ions from aqueous solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114920] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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102
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Cao XL, Zhou FY, Cai J, Zhao Y, Liu ML, Xu L, Sun SP. High-permeability and anti-fouling nanofiltration membranes decorated by asymmetric organic phosphate. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118667] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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103
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Zhao J, Yang Y, Jiang J, Takizawa S, Hou L. Influences of cross-linking agents with different MW on the structure of GO/CNTs layers, membrane performances and fouling mechanisms for dissolved organic matter. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118616] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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104
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105
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Kikhavani T, Mehdizadeh H, Van der Bruggen B, Bayati B. Removal of Heat‐Stable Salts from Lean Amine of a Gas Refinery via Electrodialysis. Chem Eng Technol 2020. [DOI: 10.1002/ceat.202000375] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tavan Kikhavani
- Ilam University Department of Chemical Engineering, Faculty of Engineering Pajohesh boulvar 69315–516 Ilam Iran
| | - Hamid Mehdizadeh
- Ilam University Department of Chemical Engineering, Faculty of Engineering Pajohesh boulvar 69315–516 Ilam Iran
| | - Bart Van der Bruggen
- KU Leuven ProcESS – Process Engineering for Sustainable Systems, Department of Chemical Engineering W. de Croylaan 46 3001 Leuven Belgium
| | - Behrouz Bayati
- Ilam University Department of Chemical Engineering, Faculty of Engineering Pajohesh boulvar 69315–516 Ilam Iran
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106
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Chen Z, Zhang Z, Chi R. Leaching Process of Weathered Crust Elution-Deposited Rare Earth Ore With Formate Salts. Front Chem 2020; 8:598752. [PMID: 33344419 PMCID: PMC7744684 DOI: 10.3389/fchem.2020.598752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/05/2020] [Indexed: 11/13/2022] Open
Abstract
To strengthen the rare earth leaching process and weaken the hydration of clay minerals for preventing landslides, it is of great importance to adopt a green and sustainable leaching agent in the industry. In this work, the leaching process of weathered crust elution-deposited rare earth ores with formate salts (ammonium formate, potassium formate, and sodium formate) was investigated. The effects of formate salts on the linear swelling ratio and zeta potential of the clay minerals were studied. The experimental results showed that ammonium formate could effectively recover the rare earth elements from weathered crust elution-deposited rare earth as well as inhibit the leaching of impurity aluminum. At room temperature, when the ammonium formate concentration was 1% wt, the leaching efficiencies of rare earth and aluminum were 87 and 37%, respectively. Compared with traditional inorganic ammonium salts, the inhibition effect of impurity aluminum was obvious. In addition, the results of the linear swelling ratio in the clay minerals showed that the inhibit ability of formate salts on the hydration of clay minerals enhanced with the increase of the formate concentration, and the order of the inhabitation on the clay minerals followed: 1% ammonium formate > 1.5% potassium formate > 2.5% sodium formate > distilled water. Based on the double layer theory, ammonium formate and potassium formate could effectively compress clay mineral particles to avoid water intake, which could increase the interaction between clay mineral particles and greatly reduce the electronegative property of the clay minerals, so as to effectively reduce the surface hydration of clay minerals to decrease the swelling of rare earth ore. The results of this experiment have important and practical significance in guiding the prevention of landslides, promoting the in-situ leaching technology, and effectively protecting the ecological environment in mining areas.
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Affiliation(s)
- Zhuo Chen
- School of XingFa Mining Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Zhenyue Zhang
- School of XingFa Mining Engineering, Wuhan Institute of Technology, Wuhan, China
- Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, China
| | - Ruan Chi
- School of XingFa Mining Engineering, Wuhan Institute of Technology, Wuhan, China
- Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, China
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107
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Ibrar I, Yadav S, Altaee A, Samal AK, Zhou JL, Nguyen TV, Ganbat N. Treatment of biologically treated landfill leachate with forward osmosis: Investigating membrane performance and cleaning protocols. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 744:140901. [PMID: 32711320 DOI: 10.1016/j.scitotenv.2020.140901] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
This study presents systematic investigations to evaluate the performance, rejection rate, fouling, cleaning protocols and impact of physical and chemical cleaning strategies on the performance of commercial cellulose triacetate (CTA) membrane. The treatment of landfill leachate (LFL) solution was performed in the active layer facing feed solution and support layer facing the draw solution (AL-FS mode), and active layer facing the draw solution and support layer facing the feed solution (AL-DS mode). Compared to the AL-FS mode, a higher flux for AL-DS mode was achieved, but membrane fouling was more severe in the latter. In both membrane orientations, the rejection rate of the FO membrane to heavy ions and contaminants in the wastewater was between 93 and 99%. Physical and chemical cleaning strategies were investigated to recover the performance of the FO membrane and to study the impact of cleaning methods on the membrane rejection rate. Physical cleaning with hot water at 35 °C and osmotic backwashing with 1.5 M NaCl demonstrated excellent water flux recovery compared to chemical cleaning. In the chemical cleaning, an optimal concentration of 3% hydrogen peroxide was determined for 100% flux recovery of the fouled membrane. However, slight membrane damage was achieved at this concentration on the active layer side. Alkaline cleaning at pH 11 was more effective than acid cleaning at pH 4, although both protocols compromised the membrane rejection rate for some toxic ions. A comparison of the membrane long-term performance found that cleaning with osmotic backwashing and hot water were effective methods to restore water flux without comprising the membrane rejection rate. Overall, it was found that physical cleaning protocols are superior to chemical cleaning protocols for forward osmosis membrane fouled by landfill leachate wastewater.
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Affiliation(s)
- Ibrar Ibrar
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW, 2007, Australia
| | - Sudesh Yadav
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW, 2007, Australia
| | - Ali Altaee
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW, 2007, Australia.
| | - Akshaya K Samal
- Centre for Nano and Material Science (CNMS), Jain University, India
| | - John L Zhou
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW, 2007, Australia
| | - Tien Vinh Nguyen
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW, 2007, Australia
| | - Namuun Ganbat
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, NSW, 2007, Australia
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108
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Li Q, Zheng Y, Xiao D, Or T, Gao R, Li Z, Feng M, Shui L, Zhou G, Wang X, Chen Z. Faradaic Electrodes Open a New Era for Capacitive Deionization. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2002213. [PMID: 33240769 PMCID: PMC7675053 DOI: 10.1002/advs.202002213] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/30/2020] [Indexed: 05/02/2023]
Abstract
Capacitive deionization (CDI) is an emerging desalination technology for effective removal of ionic species from aqueous solutions. Compared to conventional CDI, which is based on carbon electrodes and struggles with high salinity streams due to a limited salt removal capacity by ion electrosorption and excessive co-ion expulsion, the emerging Faradaic electrodes provide unique opportunities to upgrade the CDI performance, i.e., achieving much higher salt removal capacities and energy-efficient desalination for high salinity streams, due to the Faradaic reaction for ion capture. This article presents a comprehensive overview on the current developments of Faradaic electrode materials for CDI. Here, the fundamentals of Faradaic electrode-based CDI are first introduced in detail, including novel CDI cell architectures, key CDI performance metrics, ion capture mechanisms, and the design principles of Faradaic electrode materials. Three main categories of Faradaic electrode materials are summarized and discussed regarding their crystal structure, physicochemical characteristics, and desalination performance. In particular, the ion capture mechanisms in Faradaic electrode materials are highlighted to obtain a better understanding of the CDI process. Moreover, novel tailored applications, including selective ion removal and contaminant removal, are specifically introduced. Finally, the remaining challenges and research directions are also outlined to provide guidelines for future research.
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Affiliation(s)
- Qian Li
- South China Academy of Advanced Optoelectronics and International Academy of Optoelectronics at ZhaoqingSouth China Normal UniversityGuangdong510631P. R. China
- Department of Chemical EngineeringWaterloo Institute of NanotechnologyUniversity of Waterloo200 University Ave WestWaterlooOntarioN2L 3G1Canada
| | - Yun Zheng
- Department of Chemical EngineeringWaterloo Institute of NanotechnologyUniversity of Waterloo200 University Ave WestWaterlooOntarioN2L 3G1Canada
| | - Dengji Xiao
- Department of Chemical EngineeringWaterloo Institute of NanotechnologyUniversity of Waterloo200 University Ave WestWaterlooOntarioN2L 3G1Canada
| | - Tyler Or
- Department of Chemical EngineeringWaterloo Institute of NanotechnologyUniversity of Waterloo200 University Ave WestWaterlooOntarioN2L 3G1Canada
| | - Rui Gao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of EducationJilin Normal UniversityChangchun130103P. R. China
| | - Zhaoqiang Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of EducationJilin Normal UniversityChangchun130103P. R. China
| | - Ming Feng
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of EducationJilin Normal UniversityChangchun130103P. R. China
| | - Lingling Shui
- South China Academy of Advanced Optoelectronics and International Academy of Optoelectronics at ZhaoqingSouth China Normal UniversityGuangdong510631P. R. China
| | - Guofu Zhou
- South China Academy of Advanced Optoelectronics and International Academy of Optoelectronics at ZhaoqingSouth China Normal UniversityGuangdong510631P. R. China
| | - Xin Wang
- South China Academy of Advanced Optoelectronics and International Academy of Optoelectronics at ZhaoqingSouth China Normal UniversityGuangdong510631P. R. China
| | - Zhongwei Chen
- Department of Chemical EngineeringWaterloo Institute of NanotechnologyUniversity of Waterloo200 University Ave WestWaterlooOntarioN2L 3G1Canada
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109
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Chu CH, Wang C, Xiao HF, Wang Q, Yang WJ, Liu N, Ju X, Xie JX, Sun SP. Separation of ions with equivalent and similar molecular weights by nanofiltration: Sodium chloride and sodium acetate as an example. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117199] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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110
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Aydin F, Cerón MR, Hawks SA, Oyarzun DI, Zhan C, Pham TA, Stadermann M, Campbell PG. Selectivity of nitrate and chloride ions in microporous carbons: the role of anisotropic hydration and applied potentials. NANOSCALE 2020; 12:20292-20299. [PMID: 33001104 DOI: 10.1039/d0nr04496b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Understanding ion transport in porous carbons is critical for a wide range of technologies, including supercapacitors and capacitive deionization for water desalination, yet many details remain poorly understood. For instance, an atomistic understanding of how ion selectivity is influenced by the molecular shape of ions, morphology of the micropores and applied voltages is largely lacking. In this work, we combined molecular dynamics simulations with enhanced sampling methods to elucidate the mechanism of nitrate and chloride selectivity in subnanometer graphene slit-pores. We show that nitrate is preferentially adsorbed over chloride in the slit-like micropores. This preferential adsorption was found to stem from the weaker hydration energy and unique anisotropy of the ion solvation of nitrate. Beside the effects of ion dehydration, we found that applied potential plays an important role in determining the ion selectivity, leading to a lower selectivity of nitrate over chloride at a high applied potential. We conclude that the measured ion selectivity results from a complex interplay between voltage, confinement, and specific ion effects-including ion shape and local hydration structure.
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Affiliation(s)
- Fikret Aydin
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
| | - Maira R Cerón
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
| | - Steven A Hawks
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
| | - Diego I Oyarzun
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
| | - Cheng Zhan
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
| | - Tuan Anh Pham
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
| | - Michael Stadermann
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
| | - Patrick G Campbell
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
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111
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Synthesis of Zeolites from Greek Fly Ash and Assessment of Their Copper Removal Capacity. MINERALS 2020. [DOI: 10.3390/min10100844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The objective of this study was to synthesize zeolites through fusion of lignite fly ash and NaOH or KOH pellets at 600 °C and assess their removal efficiency in terms of decontamination of solutions containing Cu(II) ions. The removal efficiency of the produced zeolites was tested in batch kinetic experiments using different zeolites and Cu(II) ion concentrations. Experimental data revealed that zeolites synthesized with the use of NaOH exhibited higher removal efficiency compared with those synthesized with the use of KOH. Kinetic data showed that the pseudo-second-order equations described well the removal process. Copper removal was mainly accomplished through the concerted action of chemisorption and intraparticle diffusion. Analytical techniques involving XRF, XRD, FTIR, SEM/EDS and XPS were used for the characterization and morphology analysis of the produced zeolites. SEM/EDS confirmed the presence of copper on the zeolite surface. XPS spectra of Cu2p at 934.3 eV proved the presence of Cu(II) oxidation state, confirming the possible formation of CuO and/or Cu-Cl.
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112
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Su Q, Deng L, Ye Q, He Y, Cui X. KOH-Activated Geopolymer Microspheres Recycle Co(II) with Higher Adsorption Capacity than NaOH-Activated Ones. ACS OMEGA 2020; 5:23898-23908. [PMID: 32984710 PMCID: PMC7513346 DOI: 10.1021/acsomega.0c03158] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/28/2020] [Indexed: 05/05/2023]
Abstract
A new type of absorbent with high efficiency was synthesized by KOH-activated slag-based geopolymer microspheres (K-SGM), which exhibited higher adsorption capacities for recycling Co(II) (Q e,K-SGM = 192.31 mg/g, Q e,Na-SGM = 91.21 mg/g) than NaOH-activated ones (Na-SGM). During the Co(II) adsorption process, these two kinds of geopolymeric adsorbents could be combined with heavy metal ions to optimize each other and form heavy metal-grown aid adsorbents. The morphology of Na-SGM and K-SGM was different which varied from coarse pores to nanonetwork or nanosheets after Co(II) adsorption, and the Brunauer-Emmett-Teller (BET) surface areas of Na-SGM (10.46 m2/g) and K-SGM (22.96 m2/g) increased to 117.38 and 228.73 m2/g after Co(II) adsorption, respectively. The BET surface area of K-SGM is twice that of Na-SGM whether before or after Co(II) ion adsorption. The hydrated ionic radius of K and Na, the alkalinity degree of K+ and Na+, the electronegativity of Na-SGM and K-SGM surface, the BET surface area and Fourier transform infrared changes of CO3 2- and OH before and after Co(II) adsorption, and X-ray photoelectron spectroscopy analysis like the relative content of geopolymer gel and bridging oxygen bonds in the Na-SGM and K-SGM are the fundamental reasons for the obvious differences in Co(II) adsorption between Na-SGM and K-SGM.
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113
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Kim WK, Chudoba R, Milster S, Roa R, Kanduč M, Dzubiella J. Tuning the selective permeability of polydisperse polymer networks. SOFT MATTER 2020; 16:8144-8154. [PMID: 32935731 DOI: 10.1039/d0sm01083a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We study the permeability and selectivity ('permselectivity') of model membranes made of polydisperse polymer networks for molecular penetrant transport, using coarse-grained, implicit-solvent computer simulations. In our work, permeability P is determined on the linear-response level using the solution-diffusion model, P = KDin, i.e., by calculating the equilibrium penetrant partition ratio K and penetrant diffusivity Din inside the membrane. We vary two key parameters, namely the network-network interaction, which controls the degree of swelling and collapse of the network, and the network-penetrant interaction, which tunes the selective penetrant uptake and microscopic energy landscape for diffusive transport. We find that the partitioning K covers four orders of magnitude and is a non-monotonic function of the parameters, well interpreted by a second-order virial expansion of the free energy of transferring one penetrant from a reservoir into the membrane. Moreover, we find that the penetrant diffusivity Din in the polydisperse networks, in contrast to highly ordered membrane structures, exhibits relatively simple exponential decays. We propose a semi-empirical scaling law for the penetrant diffusion that describes the simulation data for a wide range of densities and interaction parameters. The resulting permeability P turns out to follow the qualitative behavior (including maximization and minimization) of partitioning. However, partitioning and diffusion are typically anti-correlated, yielding large quantitative cancellations, controlled and fine-tuned by the network density and interactions, as rationalized by our scaling laws. We finally demonstrate that even small changes of network-penetrant interactions, e.g., by half a kBT, modify the permselectivity by almost one order of magnitude.
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Affiliation(s)
- Won Kyu Kim
- Korea Institute for Advanced Study, Seoul 02455, Republic of Korea.
| | - Richard Chudoba
- Research Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany and Division of Theoretical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Sebastian Milster
- Research Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany and Applied Theoretical Physics-Computational Physics, Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, D-79104 Freiburg, Germany.
| | - Rafael Roa
- Departamento de Física Aplicada I, Facultad de Ciencias, Universidad de Málaga, E-29071 Málaga, Spain
| | - Matej Kanduč
- JoŽef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - Joachim Dzubiella
- Research Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany and Applied Theoretical Physics-Computational Physics, Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, D-79104 Freiburg, Germany. and Cluster of Excellence livMatS @ FIT - Freiburg Center for Interactive Materials and Bioinspired Technologies, Albert-Ludwigs-Universität Freiburg, D-79110 Freiburg, Germany
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114
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Tian ZX, Zhang X, Liu CL, Meng QG, Du ZF, Yan J. Characterization of the Influence of Hydrated Ions on the Oxygen–Hydrogen Stretching Vibration of Water by Raman Spectroscopy. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1728294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Zhi-xian Tian
- Qingdao Institute of Marine Geology, China Geological Survey, Ministry of Nutural Resources, Qingdao, China
- Key Laboratory of Marine Geology and Environment & Center of Deepsea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Xin Zhang
- Key Laboratory of Marine Geology and Environment & Center of Deepsea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Chang-ling Liu
- Qingdao Institute of Marine Geology, China Geological Survey, Ministry of Nutural Resources, Qingdao, China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Qing-guo Meng
- Qingdao Institute of Marine Geology, China Geological Survey, Ministry of Nutural Resources, Qingdao, China
| | - Zeng-feng Du
- Key Laboratory of Marine Geology and Environment & Center of Deepsea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Jun Yan
- Key Laboratory of Marine Geology and Environment & Center of Deepsea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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115
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Guo Y, Bae J, Fang Z, Li P, Zhao F, Yu G. Hydrogels and Hydrogel-Derived Materials for Energy and Water Sustainability. Chem Rev 2020; 120:7642-7707. [DOI: 10.1021/acs.chemrev.0c00345] [Citation(s) in RCA: 319] [Impact Index Per Article: 79.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Youhong Guo
- Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jiwoong Bae
- Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Zhiwei Fang
- Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Panpan Li
- Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Fei Zhao
- Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Guihua Yu
- Materials Science and Engineering Program, Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
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116
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Lin D, Liang H, Li G. Factors affecting the removal of bromate and bromide in water by nanofiltration. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:24639-24649. [PMID: 31352601 DOI: 10.1007/s11356-019-06002-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/16/2019] [Indexed: 06/10/2023]
Abstract
Bromide is universal in surface water influenced by salt tide and brackish water. It is harmless to human until transferring to bromate (a kind of disinfection byproducts) under certain conditions such as oxidation. Though both of them are not easily removed by conventional water treatment, nanofiltration seems to be an efficient way to solve the problems. In this study, the removal of bromate and bromide by nanofiltration membranes were systematically investigated, considering the system pressure (0.2-0.3-0.4 MPa), pH (5-7-9), ionic strength (0.005-0.05-0.1 mM), membrane type (NF270 and NF90), and the influences of organic matters (humic acid and sodium alginate). The membrane flux and the removal efficiency of anions were taken into consideration. According to the results, the membrane flux increased along with the system pressure, but slight influence on the removal of bromate and bromide was observed. Rising pH and ionic strength could not obviously deteriorate the flux. However, the removal of these anions was enhanced by increasing pH as well as decreasing ionic strength. Compared with humic acid, severer flux decline and deterioration of anion removal were achieved when sodium alginate was added in feed solution. Regardless of the operating conditions, bromate was more easily removed by nanofiltration membranes than bromide, which could result from different steric hindrance. Compared with NF270, NF90 can reject bromide and bromate more efficiently. The findings in the present study would contribute to the deep understanding of the factors affecting removal of bromate and bromide by nanofiltration and provides guidance about application of it.
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Affiliation(s)
- Dachao Lin
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.
| | - Guibai Li
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
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117
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Liao J, Chen Q, Pan N, Yu X, Gao X, Shen J, Gao C. Amphoteric blend ion-exchange membranes for separating monovalent and bivalent anions in electrodialysis. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116793] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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118
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Yang J, Su H, Lian C, Shang Y, Liu H, Wu J. Understanding surface charge regulation in silica nanopores. Phys Chem Chem Phys 2020; 22:15373-15380. [PMID: 32597911 DOI: 10.1039/d0cp02152k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nanoporous silica is used in a wide variety of applications, ranging from bioanalytical tools and materials for energy storage and conversion as well as separation devices. The surface charge density of nanopores is not easily measured by experiment yet plays a vital role in the performance and functioning of silica nanopores. Herein, we report a theoretical model to describe charge regulation in silica nanopores by combining the surface-reaction model and the classical density functional theory (CDFT). The theoretical predictions provide quantitative insights into the effects of pH, electrolyte concentration, and pore size on the surface charge density and electric double layer structure. With a fixed pore size, the surface charge density increases with both pH and the bulk salt concentration similar to that for an open surface. At fixed pH and salt concentration, the surface charge density rises with the pore size until it reaches the bulk asymptotic value when the surface interactions become negligible. At high pH, the surface charge density is mainly determined by the ratio of the Debye screening length to the pore size (λD/D).
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Affiliation(s)
- Jie Yang
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.
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Wen BY, Lin JS, Zhang YJ, Radjenovic PM, Zhang XG, Tian ZQ, Li JF. Probing Electric Field Distributions in the Double Layer of a Single-Crystal Electrode with Angstrom Spatial Resolution using Raman Spectroscopy. J Am Chem Soc 2020; 142:11698-11702. [PMID: 32551614 DOI: 10.1021/jacs.0c05162] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The electrical double layer (EDL) is the extremely important interfacial region involved in many electrochemical reactions, and it is the subject of significant study in electrochemistry and surface science. However, the direct measurement of interfacial electric fields in the EDL is challenging. In this work, both electrochemical resonant Raman spectroscopy and theoretical calculations were used to study electric field distributions in the EDL of an atomically flat single-crystal Au(111) electrode with self-assembled monolayer molecular films. This was achieved using a series of redox-active molecules containing the 4,4'-bipyridinium moiety as a Raman marker that were located at different precisely controlled distances away from the electrode surface. It was found that the electric field and the dipole moment of the probe molecule both directly affected its Raman signal intensity, which in turn could be used to map the electric field distribution at the interface. Also, by variation of the electrolyte anion concentration, the Raman intensity was found to decrease when the electric field strength increased. Moreover, the distance between adjacent Raman markers was ∼2.1 Å. Thus, angstrom-level spatial resolution in the mapping of electric field distributions at the electrode-electrolyte interface was realized. These results directly evidence the EDL structure, bridging the gap between the theoretical and experimental understandings of the interface.
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Affiliation(s)
- Bao-Ying Wen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, Xiamen University, Xiamen 361005, China
| | - Jia-Sheng Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, Xiamen University, Xiamen 361005, China
| | - Yue-Jiao Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, Xiamen University, Xiamen 361005, China
| | - Petar M Radjenovic
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, Xiamen University, Xiamen 361005, China
| | - Xia-Guang Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, Xiamen University, Xiamen 361005, China
| | - Jian-Feng Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, Xiamen University, Xiamen 361005, China
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120
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Liu M, Liu Y, Shen J, Zhang S, Liu X, Chen X, Ma Y, Ren S, Fang G, Li S, Tong Li C, Sun T. Simultaneous removal of Pb 2+, Cu 2+ and Cd 2+ ions from wastewater using hierarchical porous polyacrylic acid grafted with lignin. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122208. [PMID: 32088540 DOI: 10.1016/j.jhazmat.2020.122208] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 01/13/2020] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
In PAA-g-lignin, phase separation, caused by the difference in expansion properties between lignin and polyacrylic acid, is used to build a porous hydrogel. In this study, PAA-g-APL was produced by grafting polyacrylic acid with acid-pretreated alkali lignin. Acid-pretreated alkali lignin acts as a hierarchical pore-forming agent that enhances the simultaneous adsorption capacities for Pb2+, Cu2+ and Cd2+ ions from wastewater. Notably, PAA-g-APL acted as a selective adsorbent for Pb2+ ions has an excellent selective removal coefficient α (20.22) in contaminated wastewater contained Cu2+ ions. Its molar partition coefficient for Pb2+ ions (68 %) is higher than that for either Cu2+ ions (28.6 %) or Cd2+ ions (3.4 %). At equilibrium, the total adsorption capacities of PAA-g-APL for Pb2+, Cu2+ and Cd2+ were 1.076 mmol g-1, 0.3233 mmol g-1 and 0.059 mmol g-1, respectively. The experimental kinetic data fitted well to a pseudo-second order model and to an intra-particle-diffusion model. The Freundlich isotherm model gave the best fit with the experimental equilibrium data. The ΔG° for PAA-g-APL is < 0, indicating that the adsorption of heavy metal ions is a spontaneous process. This study provides a highly promising candidate for the treatment of wastewater contaminated with a mixture of heavy metals.
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Affiliation(s)
- Mengyu Liu
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Yang Liu
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Jingjie Shen
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Siyu Zhang
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Xuying Liu
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Xiaoxia Chen
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Yanli Ma
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China; Material Science and Engineering College, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China.
| | - Shixue Ren
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Guizhen Fang
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Shujun Li
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Chen Tong Li
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China; Material Science and Engineering College, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
| | - Tong Sun
- Key Laboratory of Bio-based Material Science and Technology Ministry of Education, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China; Material Science and Engineering College, Northeast Forestry University, Heilongjiang, Harbin, 150040, PR China
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121
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Wang R, Wei M, Wang Y. Secondary growth of covalent organic frameworks (COFs) on porous substrates for fast desalination. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118090] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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122
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Aher A, Nickerson T, Jordan C, Thorpe F, Hatakeyama E, Ormsbee L, Majumder M, Bhattacharyya D. Ion and organic transport in Graphene oxide membranes: Model development to difficult water remediation applications. J Memb Sci 2020; 604. [DOI: 10.1016/j.memsci.2020.118024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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123
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Yang S, Jiang Q, Zhang K. Few-layers 2D O–MoS2 TFN nanofiltration membranes for future desalination. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118052] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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124
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Zhao B, Ma W, Zhang P, Zhang Q, Zhong J, Matsuyama H. Permeation and diffusion of nutrient ions in poly (vinyl alcohol) hydrogel membrane. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01210-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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125
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Lin D, Bai L, Gan Z, Zhao J, Li G, Aminabhavi TM, Liang H. The role of ferric coagulant on gypsum scaling and ion interception efficiency in nanofiltration at different pH values: Performance and mechanism. WATER RESEARCH 2020; 175:115695. [PMID: 32172057 DOI: 10.1016/j.watres.2020.115695] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/01/2020] [Accepted: 03/04/2020] [Indexed: 06/10/2023]
Abstract
Nanofiltration (NF) is extensively applied after coagulation, which is conducive to alleviate organic fouling on NF membranes and improve water purification performance. However, inorganic fouling, which remains the major obstacle to limit the wider application of NF, could be enhanced by even low dosage coagulant. Few researchers realize the existence of coagulant-enhanced scaling, much less control it. This study investigated the effects of pH values on ferric-coagulant-influenced membrane performance during the nanofiltration of brackish water. Both membrane flux behavior (initial membrane flux, normalized flux during filtration, scaling resistance and scaling composition) and ion interception (filtrate conductivity and ions removal) were considered. Solution properties (zeta potential and nanoparticle size) were measured, and coagulant speciation variation was stimulated by Visual MINTEQ software. Mechanisms of ferric-coagulant-influenced membrane performance were analyzed from two aspects on the basis of correlation analyses: interface interaction on membrane surface and salts crystallization process (bulk crystallization and surface crystallization). Results showed that both bulk crystallization in feed solution and surface crystallization on membrane surface were dramatically induced by coagulant. Coagulant-enhanced fouling layer resistance decreased after the initial increase when pH varied from 3.0 to 10.0. Fe(OH)3, a kind of active ingredients in ferric coagulant, was highly responsible for the enhanced scaling layer resistance. Coagulant was found improving ionic removal under acidic conditions despite the fact that it could worsen removal under alkaline conditions. This study is of valuable reference to figure out the mechanisms of coagulant-influenced membrane performance and find a feasible approach to avoid membrane deterioration in coagulant-influenced NF process.
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Affiliation(s)
- Dachao Lin
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Langming Bai
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Zhendong Gan
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Jing Zhao
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Guibai Li
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Tejraj M Aminabhavi
- Soniya Education Trust's College of Pharmacy, Dharwad, 580002, Karnataka, India.
| | - Heng Liang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
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126
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Guo B, Xiong Y, Chen W, Saslow SA, Kozai N, Ohnuki T, Dabo I, Sasaki K. Spectroscopic and first-principles investigations of iodine species incorporation into ettringite: Implications for iodine migration in cement waste forms. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121880. [PMID: 31843402 DOI: 10.1016/j.jhazmat.2019.121880] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/25/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
Low-level radioactive wastes are commonly immobilized in cementitious materials, where cement-based material can incorporate radionuclides into their crystal structure. Specifically, ettringite (Ca6Al2(OH)12(SO4)3∙26H2O) is known to stabilize anionic species, which is appealing for waste streams with radioactive iodine (129I) that persists as iodide (I-) and iodate (IO3-) in the cementitious nuclear waste repository. However, the structural information and immobilization mechanisms of iodine species in ettringite remain unclear. The present results suggested minimal I- incorporation into ettringite (0.05 %), whereas IO3- exhibited a high affinity for ettringite via anion substitution for SO42- (96 %). The combined iodine K-edge extended X-ray absorption fine structure (EXAFS) spectra and first-principles calculations using density functional theory (DFT) suggested that IO3- was stabilized in ettringite by hydrogen bonding and electrostatic forces. Substituting IO3- for SO42- was energetically favorable by -0.41 eV, whereas unfavorable substitution energy of 4.21 eV was observed for I- substitution. Moreover, the bonding charge density analysis of the substituted IO3- and I- anions into the ettringite structure revealed the interaction between intercalated ions with the structural water molecules. These results provided valuable insight into the long-term stabilization of anionic iodine species and their migration in cementitious nuclear waste repository or alkaline environments.
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Affiliation(s)
- Binglin Guo
- Department of Earth Resource Engineering, Kyushu University, Fukuoka, 819-0395, Japan.
| | - Yihuang Xiong
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, United States
| | - Weinan Chen
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, United States
| | - Sarah A Saslow
- Pacific Northwest National Laboratory, 902 Battelle Boulevartd, Richland, Washington, 99352, United States
| | - Naofumi Kozai
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
| | - Toshihiko Ohnuki
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan; Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ismaila Dabo
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, United States.
| | - Keiko Sasaki
- Department of Earth Resource Engineering, Kyushu University, Fukuoka, 819-0395, Japan.
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127
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Nakashima Y, Takai C, Razavi-Khosroshahi H, Fuji M. Effects of cations on the size and silica shell microstructure of hollow silica nanoparticles prepared using PAA/cation/NH4OH template. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124582] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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128
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Sigurdardottir SB, DuChanois RM, Epsztein R, Pinelo M, Elimelech M. Energy barriers to anion transport in polyelectrolyte multilayer nanofiltration membranes: Role of intra-pore diffusion. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117921] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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129
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Qu J, Tian X, Jiang Z, Cao B, Akindolie MS, Hu Q, Feng C, Feng Y, Meng X, Zhang Y. Multi-component adsorption of Pb(II), Cd(II) and Ni(II) onto microwave-functionalized cellulose: Kinetics, isotherms, thermodynamics, mechanisms and application for electroplating wastewater purification. JOURNAL OF HAZARDOUS MATERIALS 2020; 387:121718. [PMID: 31771887 DOI: 10.1016/j.jhazmat.2019.121718] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/17/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
Herein, microwave-functionalized cellulose derived from rice husk was cost-effectively prepared and employed for Pb(II), Cd(II) and Ni(II) elimination in mono- and multi-component systems. Benefiting from microwave irradiation, the functionalized process was achieved in 6.5 min and the resultant RHMW-X possessed remarkably high adsorption capacities of 295.20 mg/g for Pb(II), 151.51 mg/g for Cd(II) and 72.80 mg/g for Ni(II) within the equilibrium time of 30 min. Noticeably, the metal ions adsorption rate and capacity in binary and ternary systems were lower than that of unary systems. The coexistence of Cd(II) and Ni(II) significantly slowed down the Pb(II) adsorption in binary and ternary systems, while Pb(II) exhibited the most obvious influence on the metal ions uptake in the multi-component systems. FT-IR and XPS results revealed that both ion exchange and chelation were functioned in the metal ions uptake, while physical interaction was also involved in the adsorption process. Moreover, the RHMW-X possessed favorable recyclability with slight adsorption efficiency decline during five cycles in different systems. Particularly, the RHMW-X could effectively purify actual industrial wastewater containing Pb(II), Cd(II) and Ni(II) for meeting regulatory requirements. This work facilitates the omnidirectional improvement of adsorbents for the de-pollution of practical heavy metals wastewater.
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Affiliation(s)
- Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xue Tian
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Zhao Jiang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Bo Cao
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Modupe Sarah Akindolie
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Qi Hu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Chengcheng Feng
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Yan Feng
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xianlin Meng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China.
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130
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Bandehali S, Parvizian F, Moghadassi A, Hosseini SM. High water permeable PEI nanofiltration membrane modified by L-cysteine functionalized POSS nanoparticles with promoted antifouling/separation performance. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116361] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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131
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A review on thermally stable membranes for water treatment: Material, fabrication, and application. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116223] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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132
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Liao J, Yu X, Chen Q, Gao X, Ruan H, Shen J, Gao C. Monovalent anion selective anion-exchange membranes with imidazolium salt-terminated side-chains: Investigating the effect of hydrophobic alkyl spacer length. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117818] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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133
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Zhao S, Dou P, Song J, Nghiem LD, Li XM, He T. Direct preparation of dialysate from tap water via osmotic dilution. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117659] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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134
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Remanan S, Padmavathy N, Ghosh S, Mondal S, Bose S, Das NC. Porous Graphene-based Membranes: Preparation and Properties of a Unique Two-dimensional Nanomaterial Membrane for Water Purification. SEPARATION AND PURIFICATION REVIEWS 2020. [DOI: 10.1080/15422119.2020.1725048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Sanjay Remanan
- Rubber Technology Center, Indian Institute of Technology, Kharagpur, India
| | - Nagarajan Padmavathy
- Department of Materials Engineering, Indian Institute of Science, Bangalore, India
| | - Sabyasachi Ghosh
- Rubber Technology Center, Indian Institute of Technology, Kharagpur, India
| | - Subhadip Mondal
- Rubber Technology Center, Indian Institute of Technology, Kharagpur, India
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science, Bangalore, India
| | - Narayan Ch. Das
- Rubber Technology Center, Indian Institute of Technology, Kharagpur, India
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135
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136
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Few-layers MoS2 nanosheets modified thin film composite nanofiltration membranes with improved separation performance. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117526] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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137
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Application of a Zwitterionic Hydrophobic Associating Polymer with High Salt and Heat Tolerance in Brine-Based Fracturing Fluid. Polymers (Basel) 2019; 11:polym11122005. [PMID: 31817036 PMCID: PMC6960765 DOI: 10.3390/polym11122005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/22/2019] [Accepted: 11/29/2019] [Indexed: 11/30/2022] Open
Abstract
ZID16PM, a zwitterionic hydrophobic associating polymer, has equivalent positive and negative charges and some hydrophobic monomers with twin-tailed long hydrophobic chains. It exhibits a great heat resistance and salt tolerance to the common salt in formation brine (MgCl2, CaCl2, NaCl, and KCl), which is attributed to its anti-polyelectrolyte effect and strong association force. High-salinity water (seawater or formation water) can be prepared as a fracturing fluid directly. In this paper, the formation water of the West Sichuan Gas Field is directly prepared into fracturing fluid with a concentration of 0.3% ZID16PM (Fluid-1), and the seawater of the Gulf of Mexico is directly prepared into fracturing fluid with a concentration of 0.3% ZID16PM (Fluid-2). Finally, rheological measurements, proppant suspension tests, and core matrix permeability damage rate tests for the Fluid-1 and Fluid-2 are conducted. Results show that after 120 min of shearing at 140 and 160 °C, respectively, the viscosity of Fluid-1 remains in the range of 50–85 mPa·s, and the viscosity of Fluid-2 remains in the range of 60–95 mPa·s. And the wastewater produced by an oilfield in Shaanxi, Xinjiang, and Jiangsu are also prepared into fracturing fluids with a concentration of 0.3% ZID16PM, the viscosity of these fracturing fluids can remain 32, 42, and 45 mPa·s, respectively, after 120 min of shearing at 160 °C. All results demonstrate that the polymer ZID16PM displays prominent performance in fracturing fluids.
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138
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Gong H, Tan Z, Zhang L, Huang Q. Preparation of biochar with high absorbability and its nutrient adsorption-desorption behaviour. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133728. [PMID: 31756818 DOI: 10.1016/j.scitotenv.2019.133728] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/16/2019] [Accepted: 08/01/2019] [Indexed: 05/04/2023]
Abstract
To study the formation of biochar with high absorbability, experiments were carried out at different carbonization temperature (300, 400, 600, and 800 °C) and under different carbonization atmosphere (activating gases (steam and CO2) and inert gas (N2)) to prepare biochar. In this paper, the effects of the carbonization atmosphere on the biochar pore structure were studied, and the influence of the biochar pore structure on the adsorption-desorption behaviour of nutrients (NH4+-N, NO3--N, P, and K) was investigated. Experimental results: (1) The activating gases (steam and CO2) can catalytically crack activated carbon atoms and tar blocking the biochar pores at high temperatures (T > 600 °C), and the activating gas promotes the formation of microporous biochar (d < 2 nm). (2) Micropores with a pore diameter distribution of 0.6-2 nm in biochar have the strongest nutrients adsorption, and pores with a diameter below 0.6 nm cannot adsorb hydrated ions of nutrients. (3) Biochar prepared at 600 °C and CO2 atmosphere has the best adsorption effect on nutrients. The adsorption kinetic was well described by Pseudo-second-order model. (4) After 5 cycles of biochar, the adsorption of the nutrients is still >40% of the first adsorption. Biochar has relatively high reusability.
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Affiliation(s)
- Huabo Gong
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan, PR China
| | - Zhongxin Tan
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan, PR China.
| | - Limei Zhang
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan, PR China
| | - Qiaoyun Huang
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan, PR China
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139
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Zhao K, Kong L, Yang W, Huang Y, Li H, Ma S, Lv W, Hu J, Wang H, Liu H. Hooped Amino-Group Chains in Porous Organic Polymers for Enhancing Heavy Metal Ion Removal. ACS APPLIED MATERIALS & INTERFACES 2019; 11:44751-44757. [PMID: 31689074 DOI: 10.1021/acsami.9b16423] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
By adjusting the stretch state of a triethylenetetramine (TETA) chain in an amine-functionalized porous organic polymer (POP), two adsorbents were designed to study the rational microenvironment for heavy metal ion removal. The quantum calculation elucidated that the hooped amino chains in FC-POP-CH2TETA-H exhibited stronger interactions with Pb(II) than the extended one in FC-POP-CH2TETA-E, not only through metal-ligand chelation but also metal coordination. The high binding energy of -2624 kJ mol-1 as well as the constructed microenvironment by the hooped amino chains ensured an extremely high Pb(II) capacity of 1134 mg g-1 on FC-POP-CH2TETA-H. Meanwhile, no more than 5 min to approach adsorption equilibrium revealed its ultrafast adsorption rate. It also showed excellent broad removal capability for multiple metal ions and nonsensitivity to pH. Therefore, by controlling the microenvironmental structures with suitable porosity, functional group stretching states, and coordination modes, the removal efficiency of heavy metal ions would be significantly enhanced, which further provided a promising strategy for designing a rational microenvironment to improve the task-specific separation properties.
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140
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Guo F, Liu Y, Jiao K, Yang R, Hou M, Zhang X. Artificial Heart Valves with Balanced Charged Networks Exhibiting Anti-Calcification Properties. ACS APPLIED BIO MATERIALS 2019; 3:838-847. [DOI: 10.1021/acsabm.9b00902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Feng Guo
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yunen Liu
- Department of Emergency Medicine, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China
| | - Kai Jiao
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Rui Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mingxiao Hou
- Department of Emergency Medicine, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China
| | - Xing Zhang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
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141
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Hao L, Wang C, Chen Q, Yu X, Liao J, Shen J, Gao C. A facile approach to fabricate composite anion exchange membranes with enhanced ionic conductivity and dimensional stability for electrodialysis. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.115725] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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142
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Influence of pH, multivalent counter ions, and membrane fouling on phosphate retention during ceramic nanofiltration. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.115675] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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143
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Hawks SA, Cerón MR, Oyarzun DI, Pham TA, Zhan C, Loeb CK, Mew D, Deinhart A, Wood BC, Santiago JG, Stadermann M, Campbell PG. Using Ultramicroporous Carbon for the Selective Removal of Nitrate with Capacitive Deionization. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:10863-10870. [PMID: 31244071 DOI: 10.1021/acs.est.9b01374] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The contamination of water resources with nitrate is a growing and significant problem. Here we report the use of ultramicroporous carbon as a capacitive deionization (CDI) electrode for selectively removing nitrate from an anion mixture. Through moderate activation, we achieve a micropore-size distribution consisting almost exclusively of narrow (<1 nm) pores that are well suited for adsorbing the planar, weakly hydrated nitrate molecule. Cyclic voltammetry measurements reveal an enhanced capacitance for nitrate when compared to chloride as well as significant ion sieving effects when sulfate is the only anion present. We measure high selectivities (S) of both nitrate over sulfate (SNO3/SO4 = 17.8 ± 3.6 at 0.6 V) and nitrate over chloride (SNO3/Cl = 6.1 ± 0.4 at 0.6 V) when performing a constant voltage CDI separation on 3.33 mM/3.33 mM/1.67 mM Cl/NO3/SO4 feedwater. These results are particularly encouraging considering that a divalent interferant was present in the feed. Using molecular dynamics simulations, we examine the solvation characteristics of these ions to better understand why nitrate is preferentially electrosorbed over sulfate and chloride.
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Affiliation(s)
- Steven A Hawks
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Maira R Cerón
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Diego I Oyarzun
- Department of Mechanical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Tuan Anh Pham
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Cheng Zhan
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Colin K Loeb
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Daniel Mew
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Amanda Deinhart
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Brandon C Wood
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Juan G Santiago
- Department of Mechanical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Michael Stadermann
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
| | - Patrick G Campbell
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore , California 94550 , United States
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144
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Heat to H2: Using Waste Heat for Hydrogen Production through Reverse Electrodialysis. ENERGIES 2019. [DOI: 10.3390/en12183428] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This work presents an integrated hydrogen production system using reverse electrodialysis (RED) and waste heat, termed Heat to H 2 . The driving potential in RED is a concentration difference over alternating anion and cation exchange membranes, where the electrode potential can be used directly for water splitting at the RED electrodes. Low-grade waste heat is used to restore the concentration difference in RED. In this study we investigate two approaches: one water removal process by evaporation and one salt removal process. Salt is precipitated in the thermally driven salt removal, thus introducing the need for a substantial change in solubility with temperature, which KNO 3 fulfils. Experimental data of ion conductivity of K + and NO 3 − in ion-exchange membranes is obtained. The ion conductivity of KNO 3 in the membranes was compared to NaCl and found to be equal in cation exchange membranes, but significantly lower in anion exchange membranes. The membrane resistance constitutes 98% of the total ohmic resistance using concentrations relevant for the precipitation process, while for the evaporation process, the membrane resistance constitutes over 70% of the total ohmic resistance at 40 ∘ C. The modelled hydrogen production per cross-section area from RED using concentrations relevant for the precipitation process is 0.014 ± 0.009 m 3 h − 1 (1.1 ± 0.7 g h − 1 ) at 40 ∘ C, while with concentrations relevant for evaporation, the hydrogen production per cross-section area was 0.034 ± 0.016 m 3 h − 1 (2.6 ± 1.3 g h − 1 ). The modelled energy needed per cubic meter of hydrogen produced is 55 ± 22 kWh (700 ± 300 kWh kg − 1 ) for the evaporation process and 8.22 ± 0.05 kWh (104.8 ± 0.6 kWh kg − 1 ) for the precipitation process. Using RED together with the precipitation process has similar energy consumption per volume hydrogen produced compared to proton exchange membrane water electrolysis and alkaline water electrolysis, where the energy input to the Heat to H 2 -process comes from low-grade waste heat.
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145
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Influence of water content on alkali metal chloride transport in cross-linked Poly(ethylene glycol) Diacrylate.1. Ion sorption. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121554] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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146
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Comparative study of nanofiltration membrane characterization devices of different dimension and configuration (cross flow and dead end). J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.04.035] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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147
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Ma T, Dong H, Xu L, Cui L, Wang D, Wang X. Effects of inorganic salts on the partition of iridoid glycosides in high-polarity solvent systems and their preparative separation from Lonicerae japonicae Flos by high-speed counter-current chromatography. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1654511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Tianyu Ma
- Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Hongjing Dong
- Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Lihua Xu
- Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Li Cui
- Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Daijie Wang
- Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Xiao Wang
- Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
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148
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Han E, Zhang S, Lu F, Hu F, Zheng J, Meng K, Pan Z, Li P, Yin H. Stability of easily hydrolyzable beta-cypermethrin based O/W type drug-loading microemulsion. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2018.1496831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Ershuan Han
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
| | - Shuai Zhang
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
| | - Fusui Lu
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
| | - Fengyun Hu
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
| | - Jingui Zheng
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
| | - Kunzhan Meng
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
| | - Zhengbin Pan
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
| | - Peiqiang Li
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
| | - Hongzong Yin
- Department of Chemistry, Shandong Agricultural University, Tai’an, China
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149
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Sun B, Zhang M, Huang S, Su W, Zhou J, Zhang X. Performance evaluation on regeneration of high-salt solutions used in air conditioning systems by electrodialysis. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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150
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Li J, Peng R, Li D. Effects of ion size, ion valence and pH of electrolyte solutions on EOF velocity in single nanochannels. Anal Chim Acta 2019; 1059:68-79. [DOI: 10.1016/j.aca.2019.02.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/11/2018] [Accepted: 02/04/2019] [Indexed: 11/25/2022]
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