Heliyon
·
2023
·
IF 4
Xiaoyun Liu,Xiaoze Wang,Chunyan Sun,Xiaofeng Hu,Weijun Song
Herein, we propose a simple and effective strategy for designing a zeolitic imidazolate frameworks (ZIFs) fluorescent probe with a two-dimensional leaf-like structure. By doping ZIF-L with phosphate, we developed a fluorescent probe for iron (Fe 3+ ) in systems with high salinity. The fluorescence of P-ZIF-L was quenched effectively with the presence of Fe 3+ . The physicochemical structure, surface morphology, selectivity, stability and composition of the probe were investigated. Under optimized conditions, the fluorescent probe had a detection limit of 0.5 μM. Furthermore, the results that the probe exhibited desirable salt-tolerance and was suitable for determination of Fe 3+ in brine water samples with satisfactory results.
研究领域:
材料科学
·
分析化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Jie Cao,Yajun Wu,Liang Li,Miaomiao Hu,Yun Cheng,Hang Zhang,Jintang Guo
The mechanical strength of conventional hydrogels is inadequate for preventing leakage in high-temperature and high-salinity reservoirs, primarily due to the increased mobility of polymer chains and the degradation of crosslinked networks. Herein, we employed the strategy of ’network nesting and layer reinforcement’ to design a hybrid multi-site crosslinked hydrogel. This approach enhances the interconnections between polymer chains and fortifies the crosslinked network. The shear rheological behavior and temperature sensitive characteristics of the profile control working fluids were evaluated based on rheological dynamics. In the high temperature (140 ℃) and high salinity (21.81 × 10 4 mg/L) preparation environment, the effects of different components to the mechanical strength of the hydrogel were investigated under dynamic shear and uniaxial compression conditions. The incorporation of N-(hydroxymethyl)acrylamide (NMA) in the copolymerization with acrylamide (AM) resulted in an increase in the covalent cross-linking density, leading to a rise in the shear elastic modulus from 105 Pa to 238 Pa. The use of pre-gelatinized cassava starch (PGCM) as the grafting framework enhanced the bonding between the polymer chains, as evidenced by the increase in uniaxial compressive strength from 0.018 MPa to 0.081 MPa and the rise in peak strain from 55.0 % to 72.9 %. Furthermore, the synergistic effect of fumed silica (AEROSIL), which exploits mechanical coupling between inorganic nano-fillers and organic polymers, increased the compressive strength from 0.081 MPa to 0.418 MPa and raised the peak strain from 72.9 % to 81.8 %. It provides an effective approach to enhance the plugging performance of hydrogels in high temperature and high salinity reservoirs.
研究领域:
材料科学
·
石油工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Yan Zhang,Jianlin Yang,Yali Zhao,Zhecun Wang,Gwo Sung Lai
Membrane separation has been acknowledged as an advanced technology to handle the oil spills. However, most of the superhydrophilic/underwater superhydrophobic membranes currently applied for oil/water separation would lose their superwettability when exposed to salty marine environments, leading to serious membrane plugging and separation performance deterioration. Herein, inspired by seawater fish and mussels, a simple, green, and versatile one-step co-deposition strategy is proposed for fabricating a ternary zwitterionic coating with strong surface hydration on diverse membranes, showing excellent anti-fouling properties in high salinity environments, even in the saturated NaCl solution. Moreover, the modified membrane performs well in the long term when separating surfactant-stabilized oil-in-seawater emulsion and with impressive recyclability. The ternary zwitterionic coating membrane exhibits great potential in treating oily wastewater in marine.
研究领域:
材料科学
·
环境科学
·
海洋生物学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
·
2024
·
IF 5
Congnan Cen,Xinxuan Wang,Huan Li,Jian Chen,Yanbo Wang
Pseudomonas fluorescens is a spoilage bacterium in food that has the ability to maintain growth and reproduction in high-salt environments. It acts as a defence mechanism through the exclusion of ions and the formation of biofilms. Hence, disrupting this defence mechanism may be a good way to control food spoilage. In this study, a specific flavonoid small molecule baicalin was found, which was able to dismantle the defence mechanism of the bacteria at a lower concentration (400 μM) of treatment. In synergy with salt, baicalin showed a significant inhibitory effect on the growth, c -di-gmp synthetics and biofilm formation of Pseudomonas fluorescens Pf08. Through transcriptomics , we also found that baicalein interfered with bacterial transport and polysaccharide production functions. Through molecular docking and QPCR , we found that baicalin is able to binding with the RpoS protein through hydrogen bonding and thus interfere with its function.
研究领域:
微生物学
·
食品科学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS RESEARCH BULLETIN
·
2022
·
IF 5.6
Mei-Hong Liu,Teng-Teng Li,De-Long Zhang
Micron-sized GdNbO 4 :Er 3+ /Yb 3+ phosphors were prepared by employing a high-temperature solid-state reaction. The crystalline phase, morphology, composition, spectroscopic properties, and impact of rare-earth ion concentration, temperature and high salinity environment were systematically characterized. The extracted results show that phosphor is dominated by the existence of the GdNbO 4 crystalline phase. Their morphology and agglomeration phenomenon are strongly dependent on the rare-earth concentration. The phosphor exhibits also excellent up-conversion luminescence (UCL) properties under 980 nm excitation, while a two-photon process accounts for UCL. The following optimal concentrations were selected for enhanced UCL intensity: 10 mol% for Yb 3+ and 3 mol% for Er 3+ . The phosphor shows excellent thermometric performances including strong UCL, good thermal stability, appropriate sensitivity and a wide sensitivity response range. To evaluate the accuracy of the present optical thermometer, the temperature of a heated bench has been comparatively measured by using the proposed optical thermometer and a commercial thermocouple with an accuracy of 1 K. By comparing the temperature values measured by the two methods, it can be concluded that the present optical thermometer has an accuracy better than 1.6 K. In addition, the phosphor exhibits good chemical stability in high salinity environment. Interestingly, its crystalline phase, structure, and UCL spectral structure, intensity and color are all preserved after one-month immersion into a high salinity solution.
研究领域:
材料科学
·
光学
·
海洋科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Miaomiao Ye,Xiaojiao Zhou,Ziyi Luo,Xingyuan Wang,Wen Jin,Xiaowei Liu
The formation of “high-temperature, high-salt and intense-light” environment during the new process of photothermal distillation desalination causes volatile pollutants such as phenol in seawater to volatilize into condensed freshwater, resulting the quality safety risk of the freshwater. In this work, activated peroxides processes including hydrogen peroxide (H 2 O 2 ), peroxyacetic acid (PAA), peroxodisulfate (PDS) and peroxymonosulfate (PMS) were applied for the inhibition of phenol entering condensed freshwater by making full use of the “high-temperature, high-salt, intense-light” media. Under the same conditions, the phenol removal efficiency by the activated peroxides were in the order of H 2 O 2 < PDS < PAA < PMS. The effects of the salinity, peroxide dosage, initial phenol concentration, humic acid and sunlight intensity on the distillation rates (R D ) of phenol were investigated. It was revealed that the main factor for activation of H 2 O 2 , PAA, PDS and PMS were heat, Cl − /heat, heat/light and Cl − , respectively. Though both PMS and PAA could completely degrade phenol and reduced its entry into condensed freshwater, PMS formed fewer halogenated distillation by-products and was more promising for future applications.
研究领域:
环境科学
·
化学工程
✓ 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
Xinyu Zhou,Jia Huang,Lu Han,Wenli Luo,Weifeng Lv,Hao Shen,Xinyuan Zou,Yingde Yan,Zihao Yang
Foam flooding has been widely used as an effective technology to enhance oil recovery. As a thermodynamically unstable system, foam is prone to disproportionation and coalescence especially in high-salt or high-temperature environments, which limits the effective plugging performance in complex reservoirs. In this paper, a commercial anionic-nonionic compound surfactant was used as the foaming agent, and low-cost sodium bentonite , which is optimized from three types of inorganic particles, was used as the foam stabilizer . The compound system has a foaming volume of 605 mL and a half-life of 1260 s under the environment of 90 °C and 271207 mg/L. The Nano Measurer software is proposed to calculate the foam diameter under different conditions. Furthermore, the effect of salinity, temperature, foaming agent, and stabilizer concentration on foam properties were investigated, and the mechanism of sodium bentonite on foam stability was explored. This study may provide some experimental basis and theoretical explanation for the development of particle-stabilized foam.
研究领域:
石油工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Ju Lv,Lang Pan,Yawei Zhu,Xinyue Zhang,Liujin Yang,Xiudie Wang,Xueqiong Yin
Interfacial Solar Evaporation (ISE) presents a sustainable approach for freshwater production, yet challenges persist in achieving efficient salt resistance and long-term stability. This study introduces a Thermoresponsive Hydrogel (TRH) photothermal evaporator using a novel strategy that did not require an additional light absorber. The TRH was synthesized by copolymerizing a thermosensitive monomer, isopropylacrylamide, with acrylamide using chitosan as the matrix, followed by an in-situ chromogenic reaction through crosslinking with Genipin. The TRH system demonstrates exceptional evaporation performance with a water evaporation rate (WER) of 2.63 kg·m −2 ·h −1 and a photothermal conversion efficiency of 95.0 % in a 3.5 wt% NaCl solution. Notably, it maintains stable evaporation rates above 2.60 kg·m −2 ·h −1 during extended 7-day cyclic operation and sustains > 1.91 kg·m −2 ·h −1 in hypersaline environments (15 wt% NaCl). Comparative analysis reveals the TRH’s evaporation capacity surpasses that of non-chromogenic counterparts, while exhibiting superior salt rejection characteristics. These findings establish the TRH as a promising solution for high-efficiency desalination of seawater and hypersaline brines through solar-driven evaporation, addressing critical challenges in sustainable water purification technology.
研究领域:
材料科学
·
环境工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Miao Lu,Siyuan Zhang,Liang Ma,Zhongmei Song,Xiushen Ye,Huifang Zhang,Haining Liu,Zhijian Wu
The efficient removal of recalcitrant organics in high-salinity systems, specifically brine, poses a significant challenge for electrochemically advanced oxidation processes in terms of both activity and stability. Herein, a composite electrode comprising of CNT/Nafion functionalized Ti/SnO 2 -Sb/β-PbO 2 -CNT/Nafion was developed for efficient and stable removal of octadecylamine (ODA) and 4-dodecylmorpholine (DMP) in a real high-salinity environment. The degradation efficiencies of ODA and DMP on the composite electrode can reach 100 % within 60 min, respectively. The total organic carbon (TOC) removal efficiency of ODA and DMP was significantly improved to 78 % and 66 % with remarkably low energy consumption (0.414 and 1.402 kWh/g TOC), respectively. The electrochemical characterizations demonstrate that the composite electrode exhibits improved electrochemical activity (oxygen evolution potentials = 1.791 V) and electrode surface area (ECSA = 20 cm 2 ), while maintaining reduced charge transfer resistance ( R ct = 18.21 Ω/cm 2 ) and enhanced corrosion-resistant capacity (corrosion potential = 1.115 V). Based on recycling and accelerated lifespan testing, the composite electrode demonstrates exceptional stability and recyclability. Additionally revealed was the linked stability mechanism. The electrocatalytic degradation of ODA and DMP begins with the removal of amino and morpholine rings, and then the decomposition of the carbon chains. Gas chromatography-mass spectrometry (GC–MS) and theoretical calculations were used to identify intermediate products generated during the degradation of ODA and DMP, and possible degradation pathways were provided in high-salinity systems, respectively. This work offered a fresh perspective on electrocatalytic oxidation for a real high-salinity system that is more efficient and stable.
研究领域:
环境科学
·
电化学工程
✓ 已验证
产品关联
DOI
高影响因子
Environmental Technology & Innovation
·
2020
·
IF 3.356
Jiahong Wang,Saleem Atif,Dan Zhang
EGTA functionalized magnetic microsphere (Fe 3 O 4 @SiO 2 @EGTA) was prepared for the removal of Cr(III) from highly saline organic wastewater environment. The synthesized adsorbent was characterized with Fourier transform infrared (FTIR), powder x-ray diffraction (XRD), thermogravimetric analysis (TGA) and x-ray photoelectron spectrometry (XPS). The characterization techniques depicted the successful surface modification of magnetic particles (Fe 3 O 4 @SiO 2 ) with the functional groups of EGTA without changing its crystal structure. The maximum adsorption amount of Cr(III) was 25.25 mg ⋅ g −1 at pH 4.0. The Langmuir isotherm was well fitted on the adsorption data, while adsorption equilibrium was achieved in first 15 min, and the equilibrium data well explained by pseudo second order model. The smaller concentrations of inorganic cations (Na + , Ca 2＋ , Mg 2 + ), organic acids (EDTA, Citric acid , Formic acid) and complexing agent with high salt system reduce the adsorption capacity to some extent, but after that the higher concentrations of these competing species have no apparent effect on the adsorption performance. According to the XPS analysis, the carboxyl and amino groups were responsible for the adsorption of Cr(III), while the main mechanism of adsorption were coordination complex and electrostatic interaction. The prepared adsorbent can be readily isolated by external magnetic field and regenerated for several times and still possess higher adsorption performance.
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
ENERGY & FUELS
·
2024
·
IF 5.2
Yinbo He,Xinliang Li,Yuehai Shao,Mingliang Du
Deep drilling often faces high-temperature and high-salt environments. Bentonite/water-based drilling fluids (BT/WBDFs) suffer serious fluid loss. Polyhedral oligomeric silsesquioxane (POSS) is introduced to synthesize a hybrid fluid loss additive (PAAD) through emulsion polymerization with acrylamide and 2-acrylamido-2-methylpropane sulfonic acid, and dimethyl diallyl ammonium chloride. The hybrid polymer exhibits improved filtration control performance in BT-WBDFs under conditions with a coexisting high Na+ concentration and high temperature. BT-WBDFs added with 2.0% PAAD exhibit satisfactory performance for reducing fluid loss under contamination of 20% NaCl, even at a high temperature of up to 220 °C. Microstructure analysis demonstrates that forming “polymer–clay” gel through intermolecular forces and promoting clay particle dispersion efficiently stabilizes BT-WBDFs. PAAD shields against the adverse effects of Na+ and promotes the hydration and dispersion of BT, finally forming a thin and compact filter cake. This study can provide a basis for applying POSS in the design of efficient additives for drilling fluids.
研究领域:
材料科学
·
石油工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Hongbin Guo,Jijiang Ge,Longjie Li,Mingjia Liu,Wenhui Wang
The high-temperature and high-salinity environment of the reservoir present a challenge for developing high-strength gels. In this study, a combination of acrylamide/2-acrylamido-2-methylpropanesulfonic acid (AM/AMPS) and partially hydrolyzed polyacrylamide (HPAM) was crosslinked with hydroquinone (HQ) and hexamethylenetetramine (HMTA) to prepare high-strength gels suitable for high-temperature and high-salinity reservoirs. The evaluation demonstrated that the gels exhibited exceptional strength, with a storage modulus exceeding 40 Pa. Gels containing more than 0.2 % crosslinker remained stable for over 120 days in brine with a salinity of 22 × 10 4 mg/L at 130 °C. Core flooding experimental evaluation revealed that the gel exhibited excellent plugging ability in fractures. Mechanisms of gel hardening and long-term stability in high-temperature and high-salinity environments were investigated by rheological testing, cryo-scanning electron microscopy (cryo-SEM) and Fourier transform infrared spectroscopy (FTIR) analysis. Results suggest that chelation between carboxylate groups in the gel and bivalent cations like calcium or magnesium increases mesh density, leading to hardening of the gel; aging also contributes to maintaining its strength while limiting syneresis due to AMPS presence and high mesh density, thus ensuring stability in extreme environments. The findings, although limited to laboratory-scale conditions and subject to potential variations in real time applications, still serve as a proof of concept for guiding the formulation of high-strength gels in reservoirs under extreme conditions.
研究领域:
石油工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）