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Lu M, Zhang H, Tian Y, Yao W, Wang J, Wang Y. Photocatalytic hydrogel film assisted forward osmosis (PFO) for water treatment: Sustainable performance and contaminant control. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132364. [PMID: 37634380 DOI: 10.1016/j.jhazmat.2023.132364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/11/2023] [Accepted: 08/20/2023] [Indexed: 08/29/2023]
Abstract
The integration of catalytic oxidation with forward osmosis (FO) holds promising potential to address two crucial challenges encountered by FO: fouling and unsustainable performance, but suitable approaches are still rare. Herein, we have successfully developed a photocatalysis-assisted forward osmosis (PFO) system. In the PFO, a self-made porous carbon nitride doped functional carbon nanotube photocatalytic hydrogel film (PCN@CNTM) was engaged in the FO process in an inventive way by simply sticking to the commercial FO membrane surface, preventing damage to the membrane from the catalyst's direct insertion and delaying the assault from the oxidation groups. PFO allowed organic pollutants to decompose in the feed solution (90%) and on the membrane surface, regulating the water chemical potential and giving the FO membrane antifouling properties. This resulted in sustainable water flux (11.8 LMH) with no significant membrane fouling in PFO, whereas in FO alone there was a significant fouling and flux drop (from 12.73 to 7.23 LMH in 4 h). Moreover, the expensive FO membrane was protected while the hydrogel film can be replaced on demand. The PFO exemplifies the concept of synergistic technology integration, presenting a new perspective on harnessing the strengths of distinct technologies in a mutually beneficial manner.
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Affiliation(s)
- Mengyang Lu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, China
| | - Hanmin Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, China.
| | - Yu Tian
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE) School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Wei Yao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, MOE), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, China
| | - Junsheng Wang
- Liaoning Key Laboratory of Marine Sensing and Intelligent Detection, Dalian Maritime University, Dalian 116026, China
| | - Yuezhu Wang
- Liaoning Key Laboratory of Marine Sensing and Intelligent Detection, Dalian Maritime University, Dalian 116026, China
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2
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Preparation of novel magnetic nanoparticles as draw solutes in forward osmosis desalination. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.07.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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3
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Chen X, Yang Y, Guan Y, Luo C, Bao M, Li Y. A solar-heated antibacterial sodium alginate aerogel for highly efficient cleanup of viscous oil spills. J Colloid Interface Sci 2022; 621:241-253. [PMID: 35461139 DOI: 10.1016/j.jcis.2022.04.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/04/2022] [Accepted: 04/11/2022] [Indexed: 10/18/2022]
Abstract
HYPOTHESIS Major oil spills highlight the need for environmentally responsible and cost-effective recovery technologies. However, challenges remain for heavy oil spill recovery because of its high viscosity and low fluidity. To achieve this goal, an ecofriendly bio-based aerogel with efficient photothermal conversion ability was developed as a novel absorbent to achieve the fast removal of heavy oil spill by reducing the oil viscosity. EXPERIMENTS From the renewable and abundant raw material sodium alginate (SA), hydrophobic and antibacterial SA/graphene oxide/ZIF-8 aerogel (SAGZM) was successfully fabricated via freezing-drying and chemical vapor deposition (CVD) technique. A series of characterization and tests, including aerogel structure, selective wettability, photothermal conversion ability, crude oil removal capability, and antibacterial ability, have been investigated in detail. SAGZM aerogels have rich pore structure, high porosity, excellent mechanical properties, and better photothermal conversion efficiency. FINDINGS Under sunlight illumination, the recovery ability of SAGZM for heavy crude oil was investigated through infrared thermal imaging, oil permeability behavior analysis, and the continuous absorption for crude oil. In addition, these results are well supported by the theoretical liquid absorption coefficient. This study indicates that SAGZM is highly efficient in in situ regulating oil viscosity through its remarkably photothermal conversion capability. Importantly, SAGZM possesses an excellent antibacterial ability that is often neglected in the design of environmentally friendly materials in extending its service life. The findings of this work not only provide an eco-friendly bio-based aerogel material but also demonstrate that the photo-responsive SAGZM is efficient in heavy crude oil absorption. The proposed solar-heated SA-based aerogel provides a sustainable approach and material to solve the recovery problem of viscous crude oil spills.
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Affiliation(s)
- Xiuping Chen
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Yushuang Yang
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Yihao Guan
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Chengyi Luo
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Mutai Bao
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China
| | - Yiming Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 266100 Qingdao, PR China; College of Chemistry and Chemical Engineering, Ocean University of China, 266100 Qingdao, PR China.
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4
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Gong XL, Lu HQ, Li K, Li W. Effective adsorption of crystal violet dye on sugarcane bagasse–bentonite/sodium alginate composite aerogel: Characterisation, experiments, and advanced modelling. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120478] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Lu M, Zhang H. Preparation and decontamination performance of a flexible self-standing hydrogel photocatalytic membrane. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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6
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Jing J, Qian X, Si Y, Liu G, Shi C. Recent Advances in the Synthesis and Application of Three-Dimensional Graphene-Based Aerogels. Molecules 2022; 27:molecules27030924. [PMID: 35164189 PMCID: PMC8840405 DOI: 10.3390/molecules27030924] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 12/10/2022] Open
Abstract
Three-dimensional graphene-based aerogels (3D GAs), combining the intrinsic properties of graphene and 3D porous structure, have attracted increasing research interest in varied fields with potential application. Some related reviews focusing on applications in photoredox catalysis, biomedicine, energy storage, supercapacitor or other single aspect have provided valuable insights into the current status of Gas. However, systematic reviews concentrating on the diverse applications of 3D GAs are still scarce. Herein, we intend to afford a comprehensive summary to the recent progress in the preparation method (template-free and template-directed method) summarized in Preparation Strategies and the application fields (absorbent, anode material, mechanical device, fire-warning material and catalyst) illustrated in Application of 3D GAs with varied morphologies, structures, and properties. Meanwhile, some unsettled issues, existing challenges, and potential opportunities have also been proposed in Future Perspectives to spur further research interest into synthesizing finer 3D GAs and exploring wider and closer practical applications.
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Affiliation(s)
- Jingyun Jing
- Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China; (J.J.); (X.Q.); (G.L.)
| | - Xiaodong Qian
- Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China; (J.J.); (X.Q.); (G.L.)
| | - Yan Si
- Postdoctoral Research Station of Beijing Institute of Technology, Zhongguancun Smart City Co., Ltd. Substation of Zhongguancun Haidian Yuan Postdoctoral Centre, Beijing 100081, China;
| | - Guolin Liu
- Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China; (J.J.); (X.Q.); (G.L.)
| | - Congling Shi
- Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety, China Academy of Safety Science and Technology, Beijing 100012, China; (J.J.); (X.Q.); (G.L.)
- Correspondence: ; Tel.: +86-010-8491-1317
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Wei D, Liu X, Lv S, Liu L, Wu L, Li Z, Hou Y. Fabrication, Structure, Performance, and Application of Graphene-Based Composite Aerogel. MATERIALS 2021; 15:ma15010299. [PMID: 35009444 PMCID: PMC8746295 DOI: 10.3390/ma15010299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 11/16/2022]
Abstract
Graphene-based composite aerogel (GCA) refers to a solid porous substance formed by graphene or its derivatives, graphene oxide (GO) and reduced graphene oxide (rGO), with inorganic materials and polymers. Because GCA has super-high adsorption, separation, electrical properties, and sensitivity, it has great potential for application in super-strong adsorption and separation materials, long-life fast-charging batteries, and flexible sensing materials. GCA has become a research hotspot, and many research papers and achievements have emerged in recent years. Therefore, the fabrication, structure, performance, and application prospects of GCA are summarized and discussed in this review. Meanwhile, the existing problems and development trends of GCA are also introduced so that more will know about it and be interested in researching it.
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Affiliation(s)
| | - Xiang Liu
- Correspondence: (X.L.); (S.L.); Tel.: +86-298-616-8291 (X.L.)
| | - Shenghua Lv
- Correspondence: (X.L.); (S.L.); Tel.: +86-298-616-8291 (X.L.)
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8
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Yang J, Chen Y, Gao K, Li Y, Wang S, Xie F, Jia X, Song H. Biomimetic superelastic sodium alginate-based sponges with porous sandwich-like architectures. Carbohydr Polym 2021; 272:118527. [PMID: 34420761 DOI: 10.1016/j.carbpol.2021.118527] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/27/2021] [Accepted: 08/01/2021] [Indexed: 01/29/2023]
Abstract
Design and fabrication of structurally optimized three-dimensional porous materials are highly desirable for engineering applications. Herein, through a facile bidirectional freezing technique, we prepared superelastic biomass sponges in air and underwater, which possess biomimetic porous sandwich-like architectures with lamellar layers interconnected by porous microstructures, similar to the structure of rice stems. This distinctive architecture was obtained by incorporating Typha orientalis fibers (TOFs) and graphene oxide (GO) nanosheets into sodium alginate (SA) matrix, in which SA flakes and GO nanosheets were intimately grown along TOFs. The porous sandwich-like microstructure allows stress to be distributed throughout the lamellar to avoid stress concentration and endows SA/TOFs/GO sponge with excellent mechanical compressibility and recoverability. Especially, underwater superelasticity and superoleophobicity of the sponge facilitates removal of water-miscible contaminants or oil/water separation with high efficiency. This novel strategy for the design biomimetic architecture of superelastic biomass sponge can promote its application for protecting environment.
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Affiliation(s)
- Jin Yang
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, China
| | - Yu Chen
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, China
| | - Kuidong Gao
- Shandong Province Key Laboratory of Mine Mechanical Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Yong Li
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, China
| | - Sizhe Wang
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, China
| | - Fangwei Xie
- School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Xiaohua Jia
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, China.
| | - Haojie Song
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science & Technology, Xi' an, Shaanxi 710021, China.
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9
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Tian Y, Zhang X, Feng X, Zhang J, Zhong T. Shapeable and underwater super-elastic cellulose nanofiber/alginate cryogels by freezing-induced oxa-Michael reaction for efficient protein purification. Carbohydr Polym 2021; 272:118498. [PMID: 34420751 DOI: 10.1016/j.carbpol.2021.118498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/06/2021] [Accepted: 07/22/2021] [Indexed: 01/18/2023]
Abstract
Construction of monolithic cryogels that can efficiently adsorb proteins is of great significance in biotechnological and pharmaceutical industries. Herein, a novel approach is presented to fabricate microfibrillated cellulose (MFC)/sodium alginate (SA) cryogels by using freezing-induced oxa-Michael reaction at -12 °C. Thanks to the controllable reactiveness of divinyl sulfone (DVS), cryo-concentrated pH increase activates the oxa-Michael reaction between DVS and hydroxyl groups of MFCs and SAs. The obtained composite cryogel exhibits outstanding underwater shape recovery and excellent fatigue resistance. Moreover, the MFC/SAs reveal a high lysozyme adsorption capacity of 294.12 mg/g, surpassing most of absorbent materials previously reported. Furthermore, the cryogel-packed column can purify lysozyme continuously from chicken egg white, highlighting its outstanding practical application performance. Reuse experiments indicated that over 90% of lysozyme extraction capacity was retained after 6 cycles. This work provides a new avenue to design and develop next-generation chromatographic media of natural polysaccharide-based cryogel for protein purification.
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Affiliation(s)
- Yiran Tian
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, China
| | - Xufeng Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, China.
| | - Xiyun Feng
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, China.
| | - Jinmeng Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, China
| | - Tianyi Zhong
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, China
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10
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Yang Y, Chen X, Li Y, Yin Z, Bao M. Construction of a Superhydrophobic Sodium Alginate Aerogel for Efficient Oil Absorption and Emulsion Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:882-893. [PMID: 33415974 DOI: 10.1021/acs.langmuir.0c03229] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Bio-based aerogels serve as potential materials in separation of oil/water mixtures. Nevertheless, there remain some key challenges, including expensive/toxic organic cross-linkers, unpromising reusability, and poor performance in emulsion separation. Hereby, a novel, robust, and superhydrophobic sodium alginate/graphene oxide/silicon oxide aerogel (SA/GO/SiO2-M) was fabricated by simple calcium ion cross-linking self-assembly, freeze-drying, and chemical vapor deposition methods based on the renewable and abundant raw materials. The as-prepared SA-based aerogel possesses high absorbency for varieties of organic solvents and oils. Importantly, it shows high efficiency in the separation of surfactant-stabilized water-in-oil emulsions. SA/GO/SiO2-M aerogels display excellent reusability in both absorption and separation because of their good mechanical properties in the air and oil phase, and the mechanism in emulsion separation is discussed. This study shows that SA/GO/SiO2-M aerogels are a promising material in treating oil contaminants from different fields.
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Affiliation(s)
- Yushuang Yang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, P.R. China
| | - Xiuping Chen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, P.R. China
| | - Yiming Li
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, P.R. China
| | - Zichao Yin
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, P.R. China
| | - Mutai Bao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, P.R. China
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11
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Liao X, Zhang WH, Ge Q. A cage-like supramolecular draw solute that promotes forward osmosis for wastewater remediation and source recovery. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117862] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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12
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Rabiee H, Jin B, Yun S, Dai S. O2/N2-responsive microgels as functional draw agents for gas-triggering forward osmosis desalination. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117584] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Zhang C, Liang H, Xu Z, Wang Z. Harnessing Solar-Driven Photothermal Effect toward the Water-Energy Nexus. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900883. [PMID: 31572646 PMCID: PMC6760470 DOI: 10.1002/advs.201900883] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/23/2019] [Indexed: 05/29/2023]
Abstract
Producing affordable freshwater has been considered as a great societal challenge, and most conventional desalination technologies are usually accompanied with large energy consumption and thus struggle with the trade-off between water and energy, i.e., the water-energy nexus. In recent decades, the fast development of state-of-the-art photothermal materials has injected new vitality into the field of freshwater production, which can effectively harness abundant and clean solar energy via the photothermal effect to fulfill the blue dream of low-energy water purification/harvesting, so as to reconcile the water-energy nexus. Driven by the opportunities offered by photothermal materials, tremendous effort has been made to exploit diverse photothermal-assisted water purification/harvesting technologies. At this stage, it is imperative and important to review the recent progress and shed light on the future trend in this multidisciplinary field. Here, a brief introduction of the fundamental mechanism and design principle of photothermal materials is presented, and the emerging photothermal applications such as photothermal-assisted water evaporation, photothermal-assisted membrane distillation, photothermal-assisted crude oil cleanup, photothermal-enhanced photocatalysis, and photothermal-assisted water harvesting from air are summarized. Finally, the unsolved challenges and future perspectives in this field are emphasized. It is envisioned that this work will help arouse future research efforts to boost the development of solar-driven low-energy water purification/harvesting.
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Affiliation(s)
- Chao Zhang
- Department of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Hong‐Qing Liang
- Carbon Dioxide Activation Center (CADIAC)Interdisciplinary Nanoscience Center (iNANO) and Department of ChemistryAarhus University8000Aarhus CDenmark
| | - Zhi‐Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Zuankai Wang
- Department of Mechanical EngineeringCity University of Hong KongHong KongChina
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Huang J, Huang X, He M, Zhang B, Feng G, Yin G, Cui Y. Control of graphene aerogel self-assembly in strongly acidic solution via solution polarity tuning. RSC Adv 2019; 9:21155-21163. [PMID: 35521349 PMCID: PMC9065991 DOI: 10.1039/c9ra02658d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/28/2019] [Indexed: 11/21/2022] Open
Abstract
In view of their advantages (plasticity, low density, adjustable pore size, high porosity of >99.9%), three-dimensional graphene aerogels (GAs) are widely used for energy storage and adsorption separation, which has inspired the development and optimization of the corresponding synthetic techniques. In particular, self-assembly in the liquid phase features the benefits of tunability and sustainability and is viewed as a promising strategy of GA synthesis. During hydrothermal GA preparation, hydrophilic graphene oxide (GO) gradually turns lipophilic upon reduction, and the resulting phase transition separation and polarity change induce self-assembly into an aerogel. However, the effect of solution polarity on the structure or state of dispersed GO nanosheets, which affects the final property-determining process of automatic assembly, is still unclear. Herein, we prepared a series of GAs by hydrothermal reduction of unwashed GO with vitamin C in liquid-phase systems of different polarity and investigated the effects of polarity on the self-assembly process and aerogel properties using a range of instrumental techniques. The results showed that GO reduction is slowed down in weakly polar systems and further demonstrated that the shape of partially reduced graphene oxide (rGO) flakes depends on solution polarity. Flaky, layered, and stacked rGO particles obtained in strongly polar media self-assembled into anisotropic gully aerogels that were brittle and almost completely inelastic. Conversely, in weakly polar media, the prepared rGO sheets were twisted, which increased the number of contact points and modes between sheets and resulted in self-assembly into uniform-pore-structure honeycomb aerogels that showed good elasticity and could be repeatedly compressed.
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Affiliation(s)
- Jinhui Huang
- School of Materials Science and Engineering, Northwestern Polytechnical University Xi'an 710072 PR China
| | - Xue Huang
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Ming He
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Buning Zhang
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Guangzhu Feng
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Guoqiang Yin
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Yingde Cui
- School of Materials Science and Engineering, Northwestern Polytechnical University Xi'an 710072 PR China
- Guangzhou Vocational College of Science and Technology Guangzhou 510550 P. R. China +86-20-87411788
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15
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Shan M, Kang H, Xu Z, Li N, Jing M, Hu Y, Teng K, Qian X, Shi J, Liu L. Decreased cross-linking in interfacial polymerization and heteromorphic support between nanoparticles: Towards high-water and low-solute flux of hybrid forward osmosis membrane. J Colloid Interface Sci 2019; 548:170-183. [DOI: 10.1016/j.jcis.2019.04.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 01/16/2023]
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García-González CA, Budtova T, Durães L, Erkey C, Del Gaudio P, Gurikov P, Koebel M, Liebner F, Neagu M, Smirnova I. An Opinion Paper on Aerogels for Biomedical and Environmental Applications. Molecules 2019; 24:molecules24091815. [PMID: 31083427 PMCID: PMC6539078 DOI: 10.3390/molecules24091815] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/02/2019] [Accepted: 05/08/2019] [Indexed: 01/08/2023] Open
Abstract
Aerogels are a special class of nanostructured materials with very high porosity and tunable physicochemical properties. Although a few types of aerogels have already reached the market in construction materials, textiles and aerospace engineering, the full potential of aerogels is still to be assessed for other technology sectors. Based on current efforts to address the material supply chain by a circular economy approach and longevity as well as quality of life with biotechnological methods, environmental and life science applications are two emerging market opportunities where the use of aerogels needs to be further explored and evaluated in a multidisciplinary approach. In this opinion paper, the relevance of the topic is put into context and the corresponding current research efforts on aerogel technology are outlined. Furthermore, key challenges to be solved in order to create materials by design, reproducible process technology and society-centered solutions specifically for the two abovementioned technology sectors are analyzed. Overall, advances in aerogel technology can yield innovative and integrated solutions for environmental and life sciences which in turn can help improve both the welfare of population and to move towards cleaner and smarter supply chain solutions.
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Affiliation(s)
- Carlos A García-González
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, R+D Pharma group (GI-1645), Faculty of Pharmacy and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Tatiana Budtova
- MINES ParisTech, PSL Research University, CEMEF ⁻ Center for materials forming, UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France.
| | - Luisa Durães
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, Portugal.
| | - Can Erkey
- Department of Chemical and Biological Engineering, Koç University, 34450 Sariyer, Istanbul, Turkey.
| | - Pasquale Del Gaudio
- Department of Pharmacy, University of Salerno, I-84084 Fisciano (SA), Italy.
| | - Pavel Gurikov
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Matthias Koebel
- Laboratory for Building Energy Materials and Components, Swiss Federal Laboratories for Materials Science and Technology - Empa, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland.
| | - Falk Liebner
- Institute for Chemistry of Renewable Resources, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Straße 24, 3430 Tulln an der Donau, Austria.
| | - Monica Neagu
- Immunology Department, "Victor Babes" National Institute of Pathology, 99-101 Splaiul Independentei, 050096, Bucharest, Romania.
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
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17
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Qin Y, Zhang Y, Qi N, Wang Q, Zhang X, Li Y. Preparation of Graphene Aerogel with High Mechanical Stability and Microwave Absorption Ability via Combining Surface Support of Metallic-CNTs and Interfacial Cross-Linking by Magnetic Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:10409-10417. [PMID: 30776887 DOI: 10.1021/acsami.8b22382] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The preparation of graphene aerogel by hydrothermal or chemical reduction has been one of the hot topics of research. But in the process of assembly, the random weak connection of GO flakes leads to irreversible deformation under compression, and the mechanical stability of aerogel based on graphene is one of its drawbacks that is hard to overcome. Here, a novel method to prepare graphene aerogel with high mechanical stability was proposed via combining surface support brought by metallic-CNT networks and interfacial cross-linking of GO sheets achieved by nanoparticle selective absorption. Thoroughly dispersed metallic-CNTs absorbed on the basal plane of GO flakes formed continuous network structures, which not only improve the mechanical performance of flakes but also provide steric effects to impel the adsorption of metallic oxide magnetic nanoparticles concentrated on the edge of GO flakes, thereby guaranteeing the interfacial connection of adjacent rGO flakes by nanoparticle cross-linking. Meanwhile, the surface and interface reinforce approach can greatly improve the electrical conductivity and mechanical stability of composites. Owing to the light weight, abundant interface, high electrical conductivity, combined with the superparamagnetic properties brought by the magnetic nanoparticles, composite aerogel with high mechanical stability and excellent microwave absorption was achieved, of which the effective absorption bandwidth of the aerogel is 4.4-18 GHz and the maximum value can reach -49 dB. This approach could not only be used to prepare microwave absorption materials with light weight and high performance but also be meaningful to enlarge the construction and application of carbon-based materials.
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Affiliation(s)
- Yan Qin
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Yan Zhang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Na Qi
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Qiaozhi Wang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Xuejie Zhang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Ying Li
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
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18
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Shan C, Wang L, Li Z, Zhong X, Hou Y, Zhang L, Shi F. Graphene oxide enhanced polyacrylamide-alginate aerogels catalysts. Carbohydr Polym 2018; 203:19-25. [PMID: 30318203 DOI: 10.1016/j.carbpol.2018.09.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 09/13/2018] [Accepted: 09/13/2018] [Indexed: 12/11/2022]
Abstract
Biomass aerogel is a promising catalyst and has attracted extensive attention. However, most of the biomass aerogels are fragile, which limits their practical application. Herein, we significantly enhance the mechanical property of biomass aerogel catalysts by 30 times through incorporating graphene oxide into polyacrylamide and Cu-cross-linked alginate formed supper-strong double network aerogels. In addition to enhance the mechanical property, the graphene oxide also significantly increases the catalytic activity. Graphene oxide enhancement for biomass aerogel catalyst provides a new method to develop next generation supper catalysts.
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Affiliation(s)
- Cong Shan
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, PR China
| | - Lianxu Wang
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, PR China
| | - Zhongxu Li
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, PR China
| | - Xin Zhong
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, PR China
| | - Yaheng Hou
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, PR China
| | - Long Zhang
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, PR China
| | - Fengwei Shi
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, PR China; Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, PR China; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States.
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