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Saeed-Ul-Hassan M, Ehtisham M, Badawi AK, Khan AM, Khan RA, Ismail B. A comparative study of moisture adsorption on GO, MOF-5, and GO/MOF-5 composite for applications in atmospheric water harvesting. NANOSCALE ADVANCES 2024; 6:3668-3679. [PMID: 38989524 PMCID: PMC11232537 DOI: 10.1039/d4na00150h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/28/2024] [Indexed: 07/12/2024]
Abstract
Water scarcity is an alarming situation across the globe. Several methods have been reported in the literature to minimize the water shortage problem. Sorbent-based atmospheric water harvesting (SBAWH) is considered an energy-efficient, low-cost strategy, and sustainable approach. In the present study, the synthesis of graphene oxide (GO) was carried out using a modified Hummers' method, while the synthesis of MOF-5 and a GO/MOF-5 composite was carried out using a solvothermal approach. The synthesized materials were characterized by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). The phase composition and crystallinity of all synthesized samples were confirmed by XRD analysis. SEM analysis provided information about the surface morphology of all synthesized samples. The adsorption of water vapors on surfaces of GO, MOF-5, and the GO/MOF-5 composite was evaluated by FTIR analysis. The negative charge was explored by the PZC technique on the surface of all synthesized materials. The water adsorption characteristics of GO, MOF-5, and the GO/MOF-5 composite were evaluated using an atmospheric water harvesting (AWH) plant. The maximum adsorption capacity of 542 mg g-1 was achieved by the MOF at 55% RH (relative humidity), while a low adsorption capacity of the MOF was observed at higher humidity values. This problem was overcome by making a GO/MOF-5 composite. GO imparts structural stability to the MOF-5 structure at higher humidity values. The maximum adsorption capacity of 1137 mg g-1 was achieved by the GO/MOF-5 composite at 75% RH. Several isotherm models, such as Langmuir, Freundlich, and Temkin, were applied to confirm the single-site occupation by water molecules and chemisorption behavior. Several thermodynamic properties were calculated, including isosteric heat (Q st), Gibbs free energy (ΔG), and sorption entropy (ΔS). The overall thermodynamics study confirms that the adsorption process is spontaneous and exothermic. In addition, second-order kinetics confirms that all synthesized material shows chemisorption behavior.
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Affiliation(s)
- Muhammad Saeed-Ul-Hassan
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| | - Muhammad Ehtisham
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| | - Ahmad K Badawi
- Civil Engineering Department, El-Madina Higher Institute for Engineering and Technology Giza 12588 Egypt
| | - Asad Muhammad Khan
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| | - Rafaqat Ali Khan
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| | - Bushra Ismail
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
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R Leivas F, Barbosa MC. Functionalized carbon nanocones performance in water harvesting. J Chem Phys 2023; 158:2890471. [PMID: 37184010 DOI: 10.1063/5.0142718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 04/30/2023] [Indexed: 05/16/2023] Open
Abstract
In this work, we investigate the water capture process for functionalized carbon nanocones (CNCs) through molecular dynamic simulations in the following three scenarios: a single CNC in contact with a reservoir containing liquid water, a single CNC in contact with a water vapor reservoir, and a combination of more than one CNC in contact with vapor. We found that water flows through the nanocones when in contact with the liquid reservoir if the nanocone tip presents hydrophilic functionalization. In contact with steam, we observed the formation of droplets at the base of the nanocone only when hydrophilic functionalization is present. Then, water flows through in a linear manner, a process that is more efficient than that in the liquid reservoir regime. The scalability of the process is tested by analyzing the water flow through more than one nanocone. The results suggest that the distance between the nanocones is a fundamental ingredient for the efficiency of water harvesting.
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Affiliation(s)
- Fernanda R Leivas
- Instituto de Física, Universidade Federal do Rio Grande do Sul, CP 15051, 91501-970 Porto Alegre, RS, Brazil
| | - Marcia C Barbosa
- Instituto de Física, Universidade Federal do Rio Grande do Sul, CP 15051, 91501-970 Porto Alegre, RS, Brazil
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Zhang S, Fu J, Xing G, Zhu W, Ben T. Porous Materials for Atmospheric Water Harvesting. ChemistryOpen 2023; 12:e202300046. [PMID: 37165258 PMCID: PMC10172163 DOI: 10.1002/open.202300046] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/17/2023] [Indexed: 05/12/2023] Open
Abstract
Atmospheric Water Harvesting (AWH) using porous adsorbents is emerging as a promising solution to combat water shortage. Thus, a clearer understanding of the developing trends and optimization strategies of different porous adsorbents can be extremely helpful. Therefore, in this concept, the different types of porous adsorbents and AWH devices are briefly introduced with a focus on the factors that influence the static and kinetic properties of porous adsorbents and their respective optimization strategies. In addition, the fast transport characteristics of water molecules in micropores are studied from the perspective of superfluidity as part of the analysis of the kinetic properties of porous adsorbents. Finally, the future development of porous materials for AWH and the accompanying challenges are summarized.
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Affiliation(s)
- Shuai Zhang
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty ChemicalsInstitute of Advanced Fluorine-Containing MaterialsZhejiang Normal University321004JinhuaChina
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsInstitute of Physical ChemistryZhejiang Normal University321004JinhuaChina
| | - Jingru Fu
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty ChemicalsInstitute of Advanced Fluorine-Containing MaterialsZhejiang Normal University321004JinhuaChina
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsInstitute of Physical ChemistryZhejiang Normal University321004JinhuaChina
| | - Guolong Xing
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty ChemicalsInstitute of Advanced Fluorine-Containing MaterialsZhejiang Normal University321004JinhuaChina
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsInstitute of Physical ChemistryZhejiang Normal University321004JinhuaChina
| | - Weidong Zhu
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty ChemicalsInstitute of Advanced Fluorine-Containing MaterialsZhejiang Normal University321004JinhuaChina
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsInstitute of Physical ChemistryZhejiang Normal University321004JinhuaChina
| | - Teng Ben
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty ChemicalsInstitute of Advanced Fluorine-Containing MaterialsZhejiang Normal University321004JinhuaChina
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsInstitute of Physical ChemistryZhejiang Normal University321004JinhuaChina
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Deng F, Chen Z, Wang C, Xiang C, Poredoš P, Wang R. Hygroscopic Porous Polymer for Sorption-Based Atmospheric Water Harvesting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2204724. [PMID: 36209387 PMCID: PMC9685462 DOI: 10.1002/advs.202204724] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Sorption-based atmospheric water harvesting (SAWH) holds huge potential due to its freshwater capabilities for alleviating water scarcity stress. The two essential parts, sorbent material and system structure, dominate the water sorption-desorption performance and the total water productivity for SAWH system together. Attributed to the superiorities in aspects of sorption-desorption performance, scalability, and compatibility in practical SAWH devices, hygroscopic porous polymers (HPPs) as next-generation sorbents are recently going through a vast surge. However, as HPPs' sorption mechanism, performance, and applied potential lack comprehensive and accurate guidelines, SAWH's subsequent development is restricted. To address the aforementioned problems, this review introduces HPPs' recent development related to mechanism, performance, and application. Furthermore, corresponding optimized strategies for both HPP-based sorbent bed and coupling structural design are proposed. Finally, original research routes are directed to develop next-generation HPP-based SAWH systems. The presented guidelines and insights can influence and inspire the future development of SAWH technology, further achieving SAWH's practical applications.
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Affiliation(s)
- Fangfang Deng
- Institute of Refrigeration and CryogenicsMOE Engineering Research Center of Solar Power and RefrigerationShanghai Jiao Tong UniversityShanghai200040China
| | - Zhihui Chen
- Institute of Refrigeration and CryogenicsMOE Engineering Research Center of Solar Power and RefrigerationShanghai Jiao Tong UniversityShanghai200040China
| | - Chenxi Wang
- Institute of Refrigeration and CryogenicsMOE Engineering Research Center of Solar Power and RefrigerationShanghai Jiao Tong UniversityShanghai200040China
| | - Chengjie Xiang
- Institute of Refrigeration and CryogenicsMOE Engineering Research Center of Solar Power and RefrigerationShanghai Jiao Tong UniversityShanghai200040China
| | - Primož Poredoš
- Institute of Refrigeration and CryogenicsMOE Engineering Research Center of Solar Power and RefrigerationShanghai Jiao Tong UniversityShanghai200040China
| | - Ruzhu Wang
- Institute of Refrigeration and CryogenicsMOE Engineering Research Center of Solar Power and RefrigerationShanghai Jiao Tong UniversityShanghai200040China
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Zhang Y, Guo S, Yu ZG, Qu H, Sun W, Yang J, Suresh L, Zhang X, Koh JJ, Tan SC. An Asymmetric Hygroscopic Structure for Moisture-Driven Hygro-Ionic Electricity Generation and Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201228. [PMID: 35338530 DOI: 10.1002/adma.202201228] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/23/2022] [Indexed: 06/14/2023]
Abstract
The interactions between moisture and materials give rise to the possibility of moisture-driven energy generation (MEG). Current MEG materials and devices only establish this interaction during water sorption in specific configurations, and conversion is eventually ceased by saturated water uptake. This paper reports an asymmetric hygroscopic structure (AHS) that simultaneously achieves energy harvesting and storage from moisture absorption. The AHS is constructed by the asymmetric deposition of a hygroscopic ionic hydrogel over a layer of functionalized carbon. Water absorbed from the air creates wet-dry asymmetry across the AHS and hence an in-plane electric field. The asymmetry can be perpetually maintained even after saturated water absorption. The absorbed water triggers the spontaneous development of an electrical double layer (EDL) over the carbon surface, which is termed a hygro-ionic process, accounting for the capacitive properties of the AHS. A peak power density of 70 µW cm-3 was realized after geometry optimization. The AHS shows the ability to be recharged either by itself owing to a self-regeneration effect or via external electrical means, which allows it to serve as an energy storage device. In addition to insights into moisture-material interaction, AHSs further shows potential for electronics powering in assembled devices.
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Affiliation(s)
- Yaoxin Zhang
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering drive 1, Singapore, 117575, Singapore
| | - Shuai Guo
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering drive 1, Singapore, 117575, Singapore
| | - Zhi Gen Yu
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, Singapore, 138632, Singapore
| | - Hao Qu
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering drive 1, Singapore, 117575, Singapore
| | - Wanxin Sun
- Division of Nano Surfaces, Bruker Corporation, 11 Biopolis Way, Singapore, 138667, Singapore
| | - Jiachen Yang
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering drive 1, Singapore, 117575, Singapore
| | - Lakshmi Suresh
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering drive 1, Singapore, 117575, Singapore
| | - Xueping Zhang
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering drive 1, Singapore, 117575, Singapore
| | - J Justin Koh
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering drive 1, Singapore, 117575, Singapore
| | - Swee Ching Tan
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering drive 1, Singapore, 117575, Singapore
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Legrand U, Girard-Lauriault PL, Meunier JL, Boudreault R, Tavares JR. Experimental and Theoretical Assessment of Water Sorbent Kinetics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2651-2659. [PMID: 35175059 DOI: 10.1021/acs.langmuir.1c03364] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The kinetics of water adsorption in powder sorbent layers are important to design a scaled-up atmospheric water capture device. Herein, the adsorption kinetics of three sorbents, a chromium (Cr)-based metal-organic framework (Cr-MIL-101), a carbon-based material (nanoporous sponges/NPS), and silica gel, have been tested experimentally, using powder layers ranging from ∼0 to 7.5 mm in thickness, in a custom-made calibrated environmental chamber cycling from 5 to 95% RH at 30 °C. A mass and energy transfer model was applied onto the experimental curves to better understand the contribution of key parameters (maximum water uptake, kinetics of single particles, layer open porosity, and particle size distribution). Open porosity (i.e., the void-to-particle ratio in the sorbent layer) shows the highest influence to improve the kinetics. Converting the sorbent kinetics data into a daily yield of captured water demonstrated (i) the existence of an optimal open porosity for each sorbent, (ii) that thinner layers with moderate open porosity performed respectively better than thicker layers with high open porosity, and (iii) that high maximum water uptake and fast single-particle kinetics are not necessarily predictive of high daily water yield.
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Affiliation(s)
- Ulrich Legrand
- CREPEC, Chemical Engineering Department, Polytechnique Montreal, 2500 Chemin de Polytechnique, Montréal, Quebec H3T 1J4, Canada
| | | | - Jean-Luc Meunier
- Department of Chemical Engineering, McGill University, 3610 University, Montréal, Quebec H3A 0C5, Canada
| | - Richard Boudreault
- Awn Nanotech, Inc., 1985 55th Ave, Suite 100, Dorval, Quebec H9P 1G9, Canada
| | - Jason Robert Tavares
- CREPEC, Chemical Engineering Department, Polytechnique Montreal, 2500 Chemin de Polytechnique, Montréal, Quebec H3T 1J4, Canada
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