Journal of Environmental Chemical Engineering
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2022
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IF 7.968
Xilu Liu,Hui Li,Jianqiang Zhang,Lei Zhu,Xu Zhu,Shifan Yu,Jinwei Xue,Ran Wang,Shaopeng Gan,Baojun Wei,Qingzhong Xue
The complex composition of oilfield-produced water is easy to scratch or corrode the separation membrane because of the existence of solid micro-particles, corrosive acid and alkali, proposing higher requirements on the durability of the membrane. Herein, a durable self-healing stainless-steel mesh was fabricated by hydrothermal growth of Ni and Fe double hydroxide nanosheet structure and dip-coating of polydimethylsiloxane (PDMS). The coating of ultrathin PDMS on the top of the nanosheets excellently maintained roughness of surface, while the PDMS stored at the valleys of the nanosheets array acted as a supplementary source for continuous self-healing process. Therefore, the engineered mesh could self-heal its superhydrophobicity despite suffering from different scales of damage. Moreover, the prepared mesh exhibited reliable superhydrophobicity, mechanochemical durability, corrosion resistance and self-cleaning properties. Eventually, the mesh showed ultrafast flux (21,000 L m −2 h −1 ) and rejection rate (> 99.99%) for separating phenixin/water mixtures during 50 continuous cycles. In addition to low-viscosity oils, the engineered mesh could separate high-viscosity crude oil/water mixtures. Aiming at the practical problem that dirty oil containing solid micro-particles is difficult to separate, the three-phase separation performance of the mesh on oil/water/sand mixtures was studied. These features make the engineered mesh have great practical application potential in oilfield-produced water treatment .
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Coatings Technology and Research
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2016
·Vol. 14
·期 1
·243-253
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IF 1.342
Lu Ming,Zhao Jiasi,Tu Weiping,Hu Jianqing,Wang Feng
Superhydrophilic stainless steel mesh membranes (SSMMs) with excellent antifouling, antimicrobial, and filtration performance, based on three-layer architecture, have been successfully prepared by a facile and environmentally friendly strategy. The superhydrophilic terpolymer poly(DMHB-SPP-HEA), denoted as PDSH, was synthesized through aqueous solution polymerization. PDSH-coated SSMMs (PDSH-SSMMs) were achieved by successive dip-coating of the commercial SSMMs into polyvinyl alcohol, divinyl sulfone (DVS), and PDSH solutions. The DVS layer and PDSH solution were crosslinked through DVS chemistry to enhance the hydrophilicity and provide a number of unique properties, such as antimicrobial activity, antifouling ability, and oil–water separation capability. Two different PDSH-SSMMs, PDSH0 - SSMM and PDSH5 - SSMM, were prepared and characterized using FTIR, SEM, and contact angle measurement (CAM). The antimicrobial activity, bovine serum albumin (BSA) fouling, and oil–water separation performance were evaluated simultaneously. The results indicate that PDSH0-SSMM is an excellent oil–water separation membrane for long-term separation, together with its extra antimicrobial and antifouling properties. It is promising for the industrialization of multi-functional membranes through this facile and environmentally friendly strategy.
研究领域:
材料科学
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环境科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
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2018
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IF 2.906
Chenyang Cao,Jiang Cheng
A robust superhydrophobic surface coated with copper stearate (CS) and Fe 3 O 4 nanoparticles was prepared on stainless steel mesh (SSM) by dip-coating method for oil/water separation. The superhydrophobicity of CS@Fe 3 O 4 SSM was found to be superior to that of SSM coated with bare CS because of the enhanced surface roughness by Fe 3 O 4 nanoparticles. The CS@Fe 3 O 4 SSM shows good performance in water repellency, self-cleaning property, long-term storage, mechanical and chemical stability. And it is capable of separating various immiscible oil/water mixtures even in extreme environments (such as highly acidic, alkaline, and salty solutions) with the separation efficiency > 98% and excellent recyclability. Furthermore, various surfactant-stabilized water-in-oil emulsions were successfully separated by the CS@Fe 3 O 4 SSM due to its good superhydrophobic and superoleophilic properties as well as dense hierarchical micro/nanostructure. The preparing approach of CS@Fe 3 O 4 SSM presented in this work is facile, inexpensive and environment-friendly, which enables the CS@Fe 3 O 4 SSM to be applied in actual oil/water separation.
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
MRS Advances
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2018
·Vol. 4
·期 7
·359-367
·
IF 0
Chen Chaolang,Weng Ding,Mahmood Awais,Wang Jiadao
In this study, a superhydrophobic and superoleophilic stainless mesh coated with polytetrafluoroethylene/silicon dioxide (PTFE/SiO 2 ) was fabricated through electrostatic self-assembly method followed by sintering treatment. The PTFE was utilized to construct low-surface-energy surface and the SiO 2 nanoparticles were added to enhance its surface roughness. The as-prepared stainless mesh exhibited desirable superhydrophobicity and superoleophilicity with a water contact angle of 152° and oil contact angle of 0°. The coated stainless mesh could separate a variety of oil/water mixtures with high efficiency and it also exhibited good recyclability. Moreover, the corrosion-resistance of stainless mesh was greatly improved by coating it with PTFE. The thermogravimetric analysis (TGA) measurements showed that the coated mesh could withstand high temperature of up to 430°C, indicating excellent thermal-resistance. It is believed that this ultra-robust stainless mesh would have significant potential applications in industry.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
ENVIRONMENTAL RESEARCH
·
2023
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IF 8.3
Huitao Lv,Jianzhang Gao,Jiaqi Chen,Tianyu Li,Yi Liang,Bin Hu,Fuqiu Ma,Yun Xue,Yongde Yan
Here, we have demonstrated an innovative decontamination strategy using molten salts as a solvent to clean stubborn uranium contaminants on stainless steel surfaces. The aim of this work was to investigate the evolutionary path of contaminants in molten salts to reveal the decontamination mechanism, thus providing a basis for the practical application of the method. Thermodynamic analysis revealed that alkali metal hydroxides, carbonates, chlorides and nitrates can react with uranium oxides (UO 3 and U 3 O 8 ) to form various uranates. Notably, the decontamination mechanism was elucidated by analyzing the chemical composition of the contaminants in the molten salts and the surface morphology of the specimens considering NaOH–Na 2 CO 3 –NaCl melt as the decontaminant. The decontamination process involved two stages: a rapid decontamination stage dominated by the thermal effect of molten salt, and a stable decontamination stage governed by the chemical reactions and diffusion of molten salt. Subsequently, a multiple decontamination strategy was implemented to achieve high decontamination rates and low residual radioactivity . Within the actual cleaning time of 30 min, the decontamination efficiency (DE) of UO 3 -contaminated specimens reached 97.8% and 93.0% for U 3 O 8 -contaminated specimens. Simultaneously, the radioactivity levels of all specimens were reduced to below the control level for reuse in the nuclear domain. Particularly, the actual radioactive waste from the nuclear industry reached a reusable level of radioactivity after decontamination. The NaOH–Na 2 CO 3 –NaCl melt outperforms conventional chemical solvents and may be one of the most rapid and efficient decontaminants for stubborn uranium contamination of metal surfaces, which provides insights in regard to handling nuclear waste.
研究领域:
核科学与工程
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Chemistry
·
2024
·
IF 6.7
Li Jiang,Meng Xu,Mianyu Bao,Yanmao Dong,Yan Yuan,Xing Zhou,Xiangkang Meng
The harsh acidic environment containing chloride ions has created serious corrosion hazards for ferritic stainless steels . Zeolitic imidazole frameworks (ZIFs) are a promising material for corrosion protection due to their microstructural and physicochemical properties. In this study, we proposed the electrodeposited ZIF-67 reinforced polypyrrole (PPY) coating (PPY/ZIF-67) for corrosion protection of 430 ferritic stainless steel (430SS). The morphology, microstructure, and anticorrosion behavior of the pristine PPY and hybrid PPY/ZIF-67 coating systems were characterized. The successful electrodeposition of ZIF-67 nanoparticles on the surface of the PPY layer resulted in a uniform distribution and a compact coating structure, which contributed to the overall uniformity of the coating and enhanced both the barrier and activity inhibition functions of the coating. The protective performance of PPY/ZIF-67 coatings was evaluated through electrochemical tests, the results indicated that the anticorrosion efficiency of PPY/ZIF-67 coating (with 0.4 mol/L pyrrole monomer content) reached to 99 %, and the coating demonstrated a durable corrosion protection ability (744 h) in 0.1 mol/L HCl solution. Such performance of can be attributed to the combined effect of the anodic protection provided by the inner PPY film, the active corrosion inhibiting properties of the ZIF-67 nanoparticle layer, and the hindrance of aggressive species by the compact coating structure over the prolonged service time.
研究领域:
材料科学
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电化学
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防腐蚀工程
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2025
·Vol. 15
·期 6
·450
·
IF 4.3
Tianxin Chen,Yue Wang,Jing Li,Liang Zhao,Xingyang Zhang,Jian He
Oil–water separation is an important method for treating oily wastewater and recovering oil resources. Based on the different affinities of superhydrophobic surfaces to water and oil, long-term oil–water separation devices with low-energy and high efficiency can be developed through the optimization of structure and process parameters. Superhydrophobic coatings were prepared on stainless-steel mesh surfaces using a spray method to construct single-channel oil–water separation equipment with superhydrophobic/oleophilic meshes, and the effects of structural and process parameters on separation efficiency were systematically investigated. Additionally, a multi-channel oil–water separation device was designed and fabricated to evaluate the feasibility and stability of long-term continuous operations. The optimized single V-shaped channel should be horizontally placed and made from 150-mesh stainless-steel mesh folded at an angle of 38.9°. For the oil–water mixtures containing 20 wt.% oil, the oil–water separation efficiencies for single and two-stage separation were 92.79% and 98.96%, respectively. After 36 h of continuous operation, the multi-channel separation device achieved single-stage and two-stage separation efficiencies of 94.60% and 98.76%, respectively. The maximum processing capacity of the multi-channel device reached 168 L/h. The modified stainless mesh can remain stable with a contact angle (CA) higher than 150° to water for 34 days. The average residence time and contact area during the oil–water separation process significantly affect separation efficiency. By optimizing oil–water separation structures and process parameters, and using a superhydrophobic spray modification method, separation efficiency can be improved while avoiding the generation of secondary pollutants.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
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2021
·
IF 6.583
Guanjun Liu,Fan Yang,Yujiao Bai,Chuang Han,Wenbo Liu,Xingkui Guo,Peipei Wang,Rongguo Wang
The low bonding strength between the thermoplastic liners and the metal bosses can easily lead to hydrogen leakage, which is one of the most important challenges for the development of type IV hydrogen storage tanks. Herein, a method incorporating graphene flakes (GFs) into polymer matrix was applied to enhance the adhesion between polyethylene (PE) and stainless steel. The adhesive bonding tests showed that the bonding strength of PE/0.5 wt% GFs composites to stainless steel was improved by an order of magnitude compared to pure PE. Contact angle tests , digital images and SEM observations were used to explore the mechanism of adhesion enhancement. The characterization test results showed that the increase in bonding strength is attributed to the mechanical interlocking caused by GFs and the strong interaction between GFs and stainless steel. This method will provide important guidance for the manufacture of the plastic liners of the Type Ⅳ tanks.
研究领域:
材料科学
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能源工程
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
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IF 4.539
Peizhang Zhou,Yuanyang Yan,Jiang Cheng,Cailong Zhou
In this work, stainless steel mesh coated with stearic acid and tetradecanedioic acid modulated ZIF-67 (SA+TDA/mZIF-67@SSM) was prepared via facile electrodeposition . The composite modulators supply defect engineering on the MOFs , endowing the as-prepared meshes with pH-switchable wettability . The ratio of modulators significantly affected the crystal morphology and wetting property of SA+TDA/mZIF-67@SSM, resulting from the competitive coordination between the modulation and crystal growth process. The SA+TDA/mZIF-67@SSM exhibited highly hydrophobic, while it became amphiphilic after soaked in alkaline solution because some exposed carboxylic acid groups on the mesh were deprotonated. The SA+TDA/mZIF-67@SSM achieved efficient and adjustable organic liquids separation, with the separation efficiency both up to 98% before and after the wettability transition. In addition, the SA+TDA/mZIF-67@SSM could realize the separation of oil/water/oil mixtures, with the separation efficiency larger than 98%. This work introduces a new technique of modulated MOFs coated mesh with pH-responsivity for separating organic liquids based on defect engineering.
研究领域:
材料科学
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化学工程
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2023
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IF 8.4
Mengbi Zhang,Xin Ma,Shuai Wang,Zhanfang Cao,Hong Zhong
A electrocatalyst with low cost and high performance is the key to achieve the industrial application of hydrogen energy. In this work, inexpensive commercial stainless steel is modified by a simple hydrothermal method. For the first time, surface corrosion modification and active substance loading are realized simultaneously with small-molecule oxalic acid. Compared with 304-type stainless steel mesh (SSM-304), the overpotential of the sample after two-step treatment (noted as OESSM) is largely decreased (125 mV), and exceptional stability (48 h) is achieved. In acidic hydrothermal corrosion, the metal on the surface of stainless steel is eroded into the solution. Then, the C2O42– recomplexes with the dissolved metal ions, and the oxalate is grown on the surface. The excellent catalytic activity and stability come from the unique framework structure of the metal oxalate crystals. Oxalic acid is widely available and with double carboxyl group in C2O42–. The electrons enriched in C═O can enhance the adsorption energy on the catalyst surface and induce the production of active catalytic sites *OOH. In addition, the oxalate crystal framework provides critical support for maintaining positive catalytic activity and stability. This work creates the possibility of realizing the large-scale application of stainless steel-based electrocatalysts in actual production.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
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2024
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IF 8.3
Changhui Fu,Guangyi Tian,Shiping He,Li Yao,Zhiguang Guo
Superwetting surfaces are often applied in oil/water separation. Hydrogels have been widely prepared as superhydrophilic/underwater superoleophobic materials for oil/water separation since they are naturally hydrophilic. Hydrogels usually need to be combined with porous substrates such as stainless steel mesh (SSM) due to their poor mechanical properties. However, it is usually inevitable that the pores of the substrate are clogged during the actual preparation process, leading to a significant decrease in the flux, which limits its effective application. In this study, acrylic acid (AA), chitosan (CS) and modified silica were utilized to form a layer of dual-network PAA/CS@SiO2 hydrogel by photopolymerization on SSM, followed by a simple and novel ultrasonic-assisted pore-making method to generate numerous pores in situ on the surface of the hydrogel-coated mesh, which led to an increase in water flux from 0 to 70,000 L m–2 h–1 without decreasing the separation efficiency. After 100 separations of a mixture of n-hexane and water, the flux was still higher than 50,000 L m–2 h–1 with a separation efficiency above 99%, which is superior to most of hydrogel-coated meshes reported so far. Moreover, the prepared PAA/CS@SiO2 hydrogel-coated mesh also has good environmental stability, low swelling, and self-cleaning properties. We believe that the strategy of this study will provide a simple new perspective when hydrogels block the substrate pores, resulting in low water flux.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Asad Sharif,Hammad Saulat,Peng Wan,Jianhua Yang,Lu Jinming
M-gallate (M = Ni, Co) coated stainless steel meshes (SSMs) were fabricated through a cost-effective and environmentally friendly synthesis approach of electrodeposition for a sustainable solution of oil/water separation. The M-gallate/500-mesh, synthesized in just 120 s, exhibit super hydrophilic properties owing to the rich hydroxyl groups (–OH) inherent in their metal–organic framework (MOF) structure which significantly enhance their performance in oil/water separation. The nano-sized randomly oriented crystals growth of Co-gallate/500-mesh showed the excellent separation performance with a water flux of 93.3 ± 5.2 × 10 3 Lm −2 h −1 and separation efficiency of 99.8 ± 0.1 % while Ni-gallate/500-mesh exhibit a water flux of 71.5 ± 5.9 × 10 3 Lm −2 h −1 and separation efficiency of 99.6 ± 0.2 % for the separation of light oil toluene/water mixture. To assess practical applicability, the M-gallate/500-mesh were tested for seawater/oil mixtures. Notably, the separation efficiency remained above 99 % for both Ni-gallate/500-mesh and Co-gallate/500-mesh while the seawater flux slightly increased for Ni-gallate/500-mesh. Moreover, M-gallate/500-mesh demonstrated good separation performance and chemical stability under alkaline conditions coupled with rapid and facile synthesis, indicating their potential for practical oil/water separation.
研究领域:
材料科学
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环境工程
✓ 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）