DESALINATION
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2024
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IF 8.3
Zhihui Yang,Chenxi Han,Yue Zheng,Yibing Chen,Weiming Wang,Xue Min,Jun Xiong,Ming Li
Interfacial solar desalination (ISE) emerges as a promising strategy to tackle the worldwide freshwater shortage. However, developing cost-effective solar evaporators that demonstrate exceptional evaporation rates while maintaining high salt-resistance is a tremendous challenge. This study introduces a three-dimensional (3D) solar evaporator, referred to as PPy-WMS, which is developed by employing a straightforward solution reaction to decorate polypyrrole (PPy) onto a waste mop sponge (WMS). The 3D PPy-WMS solar evaporator can capture ambient energy. When the exposure height is 6 cm, the PPy-WMS achieves an exceptional evaporation rate of 3.66 kg m −2 h −1 under 1-solar intensity. The macropore structure in WMS promotes water transport and facilitates salt ions backflow, resulting in high salt-resistance. The evaporation rate maintains at 2.91 kg m −2 h −1 when desalinating simulated seawater (20 wt%). Outdoor desalination experiments exhibit that 1 m 2 of PPy-WMS can extract about 15 kg of freshwater per day. This economical and straightforwardly designed solar evaporator exhibits outstanding salt-resistance, presenting a viable remedy to address global freshwater scarcity.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2016
·Vol. 133
·期 30
·
IF 1.866
Wei Gong,Meilan Li,Yunxiao Zang,Hao Xie,Bailing Liu,Hualin Chen
In order to control the impacts of blown sand in salty desert, in this article, the amphoteric emulsion, for the first time, was applied as an ecological sand-fixing material. This study started from the synthesis of the poly{vinyl acetate-dibutyl maleate-acrylamide-co-3-[ N -(2-methacroyloylethyl)- N, N -dimethylammonio]-propane sulfonate} [P(VAc-DBM-AM-DMAPS)] copolymer emulsion. Then, the structures, composition, thermal property of the emulsion were characterized by 1 H-NMR, FTIR, and DSC, respectively. The basic properties of the emulsion and salt tolerance of the latex films were measured by using viscometer, dynamic light scattering, and laser Doppler electrophoresis also. And the sand-fixing properties of the emulsion were evaluated. Finally, the influence of the emulsion on the growth of soil microbe and plants were discussed for understanding its ecological effect. The experimental results showed that the emulsion has been successfully synthesized and could be as an ecological sand-fixing material. The related reason is that, first, the emulsion could significantly improve the compressive strength and water retaining; second, the emulsion had good thermal aging, freeze-thaw stabilities and salt tolerance to withstand the changes in temperature and NaCl concentration of salty desert; third, the influence of the emulsion on the growth of plants and microbe of sand also showed a dependable ecological effect. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43715.
研究领域:
材料科学
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环境科学
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生态学
✓ 已验证
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
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2024
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IF 4.5
Yi Sun,Guqing Xiao,Zijun Liu,Dan Wu,Li Xia
There are inorganic salts in glyphosate production liquor and natural water bodies coexisting with glyphosate. It is imperative to develop a salt-tolerant adsorbent for glyphosate in water. Industrial D113 resin undergone two-step transformation to optimize the preparation of D113 in-situ loaded with Fe 3+ (D113-Fe 3+ ) as salt-resistance glyphosate adsorbent. The loading amount of Fe 3+ on D113-Fe 3+ is 3.5 mmol/g. The adsorption mechanism revealed that Fe 3+ in D113-Fe 3+ formed Fe-O-P bond with the phosphonate group of glyphosate. At 293 K, the maximum complex ratio of the adsorbed glyphosate to Fe 3+ in D113-Fe 3+ was 2.4:1. At 293 K, the remarkable saturated glyphosate adsorption capacity of D113-Fe 3+ reached 1420.2 mg/g. In pK 2 state of glyphosate, D113-Fe 3+ featured its maximum adsorption capacity at the zero charge point 2.43 of D113-Fe 3+ and 293 K. In glyphosate solution coexisting 0–16 % NaCl, D113-Fe 3+ exhibited stable glyphosate adsorption capacity and salt-resistance compared with D201, D301 and 330 resin. The endothermic and spontaneous adsorption of glyphosate on D113-Fe 3+ can fit Freundlich model and pseudo-second-order model. 2 mol/L NH 3 ·H 2 O, 2 mol/L FeCl 3 and 2 mol/L H 2 SO 4 could all regenerate D113-Fe 3+ . The characteristics of salt-resistance and the remarkable saturated adsorption capacity made D113-Fe 3+ comparable to all reported glyphosate adsorbents.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
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2020
·
IF 4.074
Weiwei Chen,Yachao Kong,Junde Li,Yanyu Sun,Jun Min,Xiaoke Hu
Bioremediation is an attractive strategy of utilizing bacteria to remove crude oil contaminants. In this study, two salt-tolerant crude oil-degrading and biosurfactant-producing bacteria, Dietzia sp. CN-3 and Acinetobacter sp. HC8–3S, were functionally combined to construct a bacterial consortium. The consortium achieved 95.8% degradation efficiency of crude oil in 10 days and various n -alkanes, cycloalkanes , branched alkanes and aromatic hydrocarbons were all depleted more effectively than single strains. Functional optimization of the consortium degraded crude oil efficiently in a wide range of pH (4–10) and salinity (0–120 g L −1 ). Furthermore, two alkane hydroxylase genes, alkB in CN-3 and alkM in HC8–3S, were cloned and their expression were examined by real-time quantitative polymerase chain reaction , indicating that alkB was more prominent in long-chain alkanes (C 20 , C 24 and C 26 ) utilization and alkM played crucial roles in medium- and long-chain alkanes (C 14 , C 16 , C 20 , C 24 and C 26 ) degradation. In soil microcosms artificially contaminated with crude oil and bioaugmented with the consortium, 58.3% of total petroleum hydrocarbons were depleted after 60 days and the degradation rate (485.8 mg kg −1 d −1 ) was higher than those reported in previous studies. Consequently, the consortium is a promising candidate in crude oil bioremediation.
研究领域:
环境科学
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微生物学
✓ 已验证
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
·
IF 6.633
Zhiyin Yao,Na Du,Nan Chen,Jianqiang Liu,Wanguo Hou
Proto-single chain amphiphiles (P-SCAs) vesicles are considered to be a plausible model of the protocell on early Earth due to their primordial relevancy and membrane structure. In this work, we selected P-SCAs sodium 2-ketooctanate (SKO) and proto-nucleobases (PNBs, including cytosine, uracil, adenine, and guanine) as the building constituents of the vesicles. The PNB molecules incorporate into SKO bilayers to form PNB@SKO vesicles with a binding rate of 7% − 12%. The interactions between them increase the solubility of PNB in water obviously while decreasing the critical vesicle concentration of SKO. The morphology, size, and membrane thickness of SKO PRB@SKO vesicles are not affected by the PNB combination significantly. A binding mechanism is proposed based on the results of Fourier transform infrared and small angle X-ray scattering. The rigid planar PNB molecules orientate via hydrogen bonding in the tilted bilayers of SKO, without excessive disruption to the membrane structure. Both ribozyme-catalyzed and non-enzymatic RNA copying reactions require high concentrations of divalent ions, fortunately, the salt resistance of these PNB@SKO vesicles is surprisingly remarkable, one or two orders of magnitude greater than the other typical P-SCAs vesicles systems. We expect that this primitively relevant vesicle system can exert its potential advantages in the proto-membrane mimicry of the origin of life.
研究领域:
生物化学
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分子生物学
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起源化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
He Zhang,Yuping Du,Dengwei Jing,Liu Yang,Junyi Ji,Xiaoke Li
Solar-driven interfacial evaporation (SIE) technology has great advantages in seawater desalination. However, during the long-term operation of a solar evaporator, salts can be deposited on the solar absorbing surface, which, in turn, hinders the evaporation process. Therefore, there is an urgent need to propose new antisalt strategies to solve this problem. Here, we present a novel cogeneration system leveraging a salt-tolerant, heterogeneous Janus-structured evaporator (FHJE) for simultaneous solar desalination and thermoelectric generation. The top evaporation layer is composed of a graphene-based photothermal membrane pre-embedded with Fe3+ cations, which enhanced solar absorption and energy conversion abilities. Meanwhile, the Fe3+ cations further contribute to the Donnan effect, effectively repelling salt ions in saltwater. The bottom layer comprises a hydrogel composed of hydrophilic phytic acid (PA) and poly(vinyl alcohol) (PVA), fostering facilitation of water transport. The FHJE was demonstrated to exhibit evaporation rate and efficiency as high as 3.655 kg m–2 h–1 and 94.7% in 10 wt% saltwater, respectively, and superior salt resistance ability without salt accumulation after 8 h of continuous evaporation (15 wt%). Furthermore, a hydropower cogeneration evaporator device was constructed, and it possesses an open-circuit voltage (VOC) and a maximum output power density of up to 143 mV and 1.33 W m–2 under 1 sun, respectively. This study is expected to provide new ideas for comprehensive utilization of solar energy.
研究领域:
能源材料科学
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环境工程
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可再生能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zheyu Tian,Qing Chang,Zhenghong Liu,Chaorui Xue,Ning Li,Suping Jia,Xiangqian Fan,Jinlong Yang,Shengliang Hu
In this study, the electric energy harvesting capability of the hierarchical pore gradient silica aerogel (HPSA) is demonstrated due to its unique porous structure and inherent hydroxyl groups on the surface. Taking advantage of the positively charged surface of unwashed HPSA credited by the preparation strategy, poly(4-styrene sulfonic acid) (PSS) can be spontaneously adsorbed onto unwashed HPSA and shows gradient distribution due to the pore-gradient structure of HPSA. By virtue of the gradient distribution and the stronger ionization of PSS, PSS-modified HPSA (PSS–HPSA) shows enhanced electricity generation performance from natural water evaporation with an average output voltage of 0.77 V on an individual device. The water evaporation-induced electricity property of PSS–HPSA can be maintained in the presence of a low concentration of salt. The desirable salt resistance capability benefits from the unique 3D hierarchical porous structure of HPSA which ensures rapid water replenishment so as to effectively avoid the salt accumulation. The HPSA-based devices with the advantages of unique porous structure, easy functionalization, good physicochemical stability, good salt resistance capability, and eco-friendliness show great potential as water evaporation-induced electricity generators.
研究领域:
材料科学
·
能源技术
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2025
·
IF 17.1
Jianqiushi Ma,Xuhui Sun,Yi liu,Liwei Wang,Meng An,Minjun Kim,Yusuke Yamauchi,Nithima Khaorapapong,Zhanhui Yuan
Solar interface evaporators for desalination have gained a growing research interest due to its potential for sustainable water production. However, an efficient balance in performance for heat management, water transport, and salt tolerance and rejection is rather difficult to achieve in actual applications. Inspired by the vascular bundles arranged in order in parenchyma cells of seagrass, this study reports the vertical arrangement of 3D aerogel formed by the hybridization of sodium alginate and reduced graphene oxide (denoted as SrGAE) to demonstrate a highly efficient solar interfacial evaporation for desalination. Due to the biomimetic macro-architecture with vertically arranged channels, SrGAE successfully achieves a shortened distance for water transmission and expanded channel for salt discharge in comparison to a traditional evaporator. Furthermore, SrGAE can absorb external energy through evaporative cooling and reduce the water-evaporation enthalpy, achieving an excellent solar-steam conversion efficiency. Such properties of SrGAE enable a continuous evaporation of 20 wt.% brine for 8 hours under one sun illumination, thus achieving an evaporation rate of 3.7 kg·m -2 ·h - ¹ and an outstanding solar-vapor conversion efficiency of 106 %.
研究领域:
材料科学
·
能源工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Geoenergy Science and Engineering
·
2024
·
IF 0
Haotian Gao,Jianwen Hu,Mingshuo Chi,Junjie Fan,Tianhao Zhang,Wenqing Xie,Ekemini Ituen,Shuangqing Sun,Chunling Li,Songqing Hu
Enhancing the recovery efficiency of heavy oil reservoirs remains one of the foremost challenges confronting the petroleum industry. Nanoparticles have garnered considerable attention as potential oil displacement agents, drawing numerous researchers to the field. In this study, temperature-responsive SiO 2 Janus nanoparticles (JNs) were successfully prepared through the Pickering emulsion template method and atom transfer radical polymerization (ATRP) reactions. Experiments on the interfacial tension (IFT) of oil-water systems indicate that JNs exhibit good dynamic interfacial activity. Furthermore, the JNs exhibit remarkable emulsification capabilities for heavy oil, facilitating the formation of stable emulsions. Notably, the modified nanoparticles exhibit a degree of salt resistance, even up to a mineralization of 1.55 × 10 4 mg/L. Additionally, their temperature-responsive properties enable their utilization for high-temperature emulsification and low-temperature demulsification, making them well-suited for oilfield field operations. To visualize and simulate the underground oil displacement process, a microscopic displacement visualization experimental apparatus was employed. Notably, the addition of just 0.03 wt% of Janus nanoparticles resulted in a significant enhancement of the recovery rate by 16.49%. The research findings suggest that the JNs developed in this study exhibit promising application prospects and commercial value in terms of enhancing oil recovery efficiency.
研究领域:
石油工程
·
材料科学
✓ 已验证
产品关联
DOI
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Guiliang Li,Yang Liu,Ke Shi,Shenghua Zhou,Fu Liu
Dispersing metal-organic framework (MOF) fillers within matrix polymeric membranes is essential for enhancing their availability, processability, and performance, yet hampered by serious agglomeration. Herein, we synthesize a novel Prussian Blue mixed matrix membrane for solar catalytic oxidation. Micro-scaled Prussian Blue microspheres are coated with Polyvinyl pyrrolidone-Vinyltriethoxysilane (PVP-VTES) crosslinked network to enhance the dispersed stability in the organic solution. The loading of modified Prussian Blue (mPB) fillers in Polyvinylidene fluoride (PVDF) matrix membrane could reach 40 %. The PB mixed matrix membrane shows enhanced hydrophilicity, water permeance, and excellent photothermal conversion capability. The membrane exhibits a sustainable tetracycline (TC) removal (>96 %) under solar irradiation in the presence of high salinity (e.g. NaCl, NaAC, and NaHCO 3 ). The photothermal effect facilitates peroxymonosulfate activation for reactive oxygen species efficient generation ( 1 O 2 /•OH/SO 4 •- ), resulting in instantaneous catalytic removal rate, multi-salt tolerance, and sustainable pollutants removal. The reported technique could potentially address interface challenges in mixed matrix membranes and can be extrapolated to the development of other fillers, achieving superior performance in membranes for water remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Di Yang,Bo Yang,Zongjun Jiang,Hao Zhang,Yin Zhong,Yang Shao
Salt tolerance is one of the important properties of hydrophobically associating water-soluble polymers (HAWSPs). In this work, HAWSPs with different hydrophobic monomer (M 12 ) contents (0.3 mol% and 0.5 mol%) were synthesized. The viscosity of two polymers was measured. Molecular simulation (MS) were carried out to elucidate the salt tolerance mechanism. Results show that the polymer with a higher M 12 content exhibits better salt tolerance. With increasing salt content, the radius of gyration of the polymers continuously decreases when M 12 content is low, while it tends to increase and then decrease under high M 12 contents. Combined with the spatial conformation, it can be found that only sufficient hydrophobic monomers can enhance the association effect of the polymers, forming more hydrophobic microregions and improving the viscosity. The radial distribution function results demonstrate the little effect of salt on hydrogen bonds . This work illustrates that simply adjusting the content of hydrophobic monomers is an effective strategy to regulate the salt tolerance of the polymers, which can significantly reduce the cost of salt-tolerant polymers.
研究领域:
高分子化学
·
材料科学
✓ 已验证
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2021
·
IF 7.267
Shujing Zhao,Miaomiao Xia,Yuhan Zhang,Qi-Meige Hasi,Juanjuan Xu,Lihua Chen
Solar steam generation (SSG) has emerged as one of renewable and environmentally friendly technologies for production of fresh water . Here, we demonstrate the preparation of a novel oil-repellent photothermal materials based on copper foam (CF) for efficient SSG. Only by a simple chemical oxidation treatment on CF (named as R–CF), the smooth CF skeleton changes to be rough, leading to an enhanced light absorption of up to 90% which is far higher than that of untreated CF (10–70%). By combination of its high porosity (89.6%) and high specific surface area (230 m 2 g −1 ), the R–CF shows superior ability on SSG as well as salt-resistance, i.e., its evaporation efficiency in water and high saline solution reaches 85.25% and 70.19% under 1 kW m −2 irradiation, respectively. In addition, R–CF was further treated by a surface chemical modification to achieve hydrophilicity while oil-repellent wettability (named as OR-R-CF), enabling it solar vaporization even in oily water, e.g., an evaporation efficiency of 77.0% was obtained in oily water, which is great advantageous to those existing photothermal materials usually suffer the drawbacks of poor oil-repellent or anti-fouling property and thus shows significant potentials for practical SSG applications in both seawater and oily water.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）