Nanoscale Research Letters
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2016
·Vol. 11
·期 1
·1-9
·
IF 2.584
Ge Yuru,Li Yushu,Zu Baiyi,Zhou Chaoyu,Dou Xincun
Complex multiphase waste system purification, as one of the major challenges in many industrial fields, urgently needs an efficient one-step purification method to remove several pollutants simultaneously and efficiently. Multi-functionalized magnetic nanoparticles, Fe 3 O 4 @SiO 2 -MPS-AM-DMC-AMPS, were facilely prepared via a one-pot in situ polymerization of three different functional monomers, AM, DMC, and AMPS, on a Fe 3 O 4 @SiO 2 -MPS core-shell structure. The multi-functionalized magnetic nanoparticles (MNPs) are proven to be a highly effective purification agent for oilfield wastewater, an ideal example of industrial complex multiphase waste system containing cations, anions, and organic pollutants. Excellent overall removal efficiencies for both cations, including K + , Ca 2+ , Na + , and Mg 2+ of 80.68 %, and anions, namely Cl − and SO 4
2− , of 85.18 % along with oil of 97.4 % were shown. The high removal efficiencies are attributed to the effective binding of the functional groups from the selected monomers with cations, anions, and oil emulsions.
研究领域:
环境科学
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材料科学
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化学工程
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PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2019
·
IF 7.015
Huayong Luo,Kelin Wu,Qin Wang,Tian C. Zhang,Hanxing Lu,Hongwei Rong,Qian Fang
We explore the feasibility of utilizing electro-responsive hydrogels as novel forward osmosis (FO) draw agents for desalination. The chemically cross-linked hydrogels were synthesized via free radical copolymerization of common acrylamide (AM) with strong anionic comonomer 2-acrylamido-2-methyl- 1 -propanesulfonic acid (AMPS). The morphology, chemical structure , water-adsorbing capacity, and water state of the hydrogels were characterized by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), a swelling test, and differential scanning calorimetry (DSC). The water-swollen hydrogels exhibited electroresponsiveness as shrinking and expanding reversibly with the on-off switching of the electric field in an electrode contact system. The magnitude of hydrogels’ deswelling increased with the increase in the degree of swelling and applied voltages. This dehydration phenomenon was induced by the decrease in hydration power of microcounter ions due to the interaction with the electrodes by water electrolysis. The hydrogels were proved to be capable of generating a reasonable water flux of 2.76 L m −2 h −1 (LMH) from brackish water (2000 ppm NaCl solution) due to their high swelling pressure. In addition, the water flux was affected by the amount of hydrogel particles on the membrane surface. Importantly, the prepared hydrogels could effectively release around 71% of the adsorbed water at an applied voltage of 15 V for 40 min, and were able to maintain their water flux and water recovery performances up to three times regeneration. Results indicate that the electric field is an attractive alternative stimulus for extracting desirable water from the hydrogel draw agent in the FO desalination process.
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APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Dongdong Zhang,Huanhuan Li,Jingjing Li,Ziang Xu,Haozhe Liu,Yiping Zhao,Xia Feng,Li Chen
Heavy metal are harmful to the mankind and difficult to observe in water, so it is necessary for the detection and removal of metal ions. Carbon dots (CDs) are novel fluorescent materials for detecting metal ions and their modified nanocomposites have great potential for water treatment applications. Our research is developing a dual material of detecting and adsorbing metal ions based on poly acrylamide-co-CD-co-2-acrylamido-2-methylpropanesulfonic acid (poly (Am-CD-AMPS)) by inverse miniemulsion polymerization. Firstly, CDs were functionalized with glycidyl methacrylate (GMA) to obtain double bond which can be stably immobilized into the microgels network during the polymerization. The prepared poly (Am-CD-AMPS) microgels demonstrated the blue fluorescent property and excitation-dependent behavior under UV light and Fluorescence spectrophotometer. The microgels had sensitivity toward Hg 2+ , Fe 3+ and Cu 2+ and detection limit as low as 2.3 nM, 3.2 μM and 1.3 μM. Meanwhile, poly (Am-CD-AMPS) microgels had adsorption capacity of 102.13 mg·g −1 and 85.00 mg·g −1 toward to Fe 3+ and Cu 2+ , and detailing of the possible mechanistic insight into the ion adsorption was also discussed. Reusability measurements showed that the synthesized microgels had the better stability in application of detecting and adsorbing metal ions.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
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2026
·
IF 3.6
Hang Shu,Tao Li,Jiating Liu,Yi Chen
In the field of advancing flexible sensor technologies, achieving both high conductivity and mechanical flexibility in hydrogel materials remains a critical challenge. To address this issue, a flexible conductive gel based on a synergistic P(AM-AMPS)-PVP network (PAAP) was developed. Through the formation of a hydrogen-bonding network and continuous ion transport pathways, the gel achieves a balanced improvement in electrical conductivity and mechanical flexibility. The resulting PAAP gel exhibits an exceptional tensile strain capacity of up to 1811%, notable ionic conductivity (59.41 mS/cm), and a very low elastic modulus (< 10 kPa), indicating strong structural resilience and adaptability under strain. These characteristics make the gel particularly suitable for use in flexible strain sensing and Morse code signal recognition. When integrated with a support vector machine (SVM) classification model, the system enables precise identification of “dot-dash” signal patterns, achieving classification accuracy exceeding 95%. This work provides a promising approach and theoretical basis for the development of flexible hydrogels in intelligent sensing, information decoding, and wearable communication technologies. Highlights A stretchable, soft, and conductive P(AM-AMPS)-PVP hydrogel for sensing. Integration of SVM enables intelligent signal recognition and interfacing. The SVM achieves a high accuracy in recognizing dot-dash signal patterns.
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高影响因子
APPLIED SURFACE SCIENCE
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2026
·
IF 6.6
Hepeng Zhou,Wenhao Jia,Wenfeng Pan,Yongbing Zhang,Chang Liu,Handan Wu,Xuekun Tang,Meifen Lei
The flotation separation of calcium-bearing minerals remains challenging due to their similar crystal structures and calcium active sites. Conventional depressants like sodium silicate are required in large dosages, leading to significant issues with wastewater treatment and economic viability. Herein, a novel depressant scheme combining poly(acrylic acid-2-acrylamido-2-methylpropane sulfonic acid) (AA/AMPS) and sodium oleate (NaOl) was employed for flotation separation of calcite from scheelite. The underlying mechanism was elucidated through surface analysis and density functional theory (DFT) calculations. The results demonstrate that at a pulp pH of 8.0 and with a low AA/AMPS dosage of merely 4 × 10 −6 mg/L, a scheelite concentrate with a WO 3 grade of 69.8% was obtained from the artificial mixed ore. This concentrate exhibited superior grade and recovery compared to those achieved using traditional sodium silicate and other reported novel depressants, while requiring a significantly lower reagent dosage. The study confirms that the –SO 3 − groups in AA/AMPS engage in strong, specific chemisorption with the active sites on the calcite surface via an electronic effect. The pronounced differences in adsorption thermodynamics and electrostatic repulsion enable AA/AMPS to achieve highly selective masking of the active sites on calcite. Consequently, this research presents an efficient depressant for the scheelite separation. These findings indicate that AA/AMPS is an efficient and environmentally benign depressant, demonstrating promising potential for industrial scheelite flotation.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2019
·
IF 3.131
Jingqi Ji,Jianqing Zhao,Yangchuan Ke
In order to overcome the inherent defects of traditional polymer microspheres as plugging agent used in oilfields, including weak mechanical properties , low dispersity in water and poor adaptability to harsh conditions, an organo-modified montmorillonite (O-MMT) was incorporated to form an exfoliated structure in acrylamide/sodium 4-styrenesulfonate/2-acrylamido-2-methyl propane sulfonic acid (AM-SSS-AMPS) terpolymer matrix via in-situ polymerization. Such exfoliated structure not only exhibited a considerable enhancement in the comprehensive properties of nanocomposites , such as viscoelasticity , heat and shear-resistance, but also improved nanomechanical properties of microspheres. The results of nanomechanical properties showed that the energy dissipation and adhesion of nanocomposite with 3.0 wt% O-MMT were decreased to only 1.9% and 4.7% of those of the original terpolymer, respectively, implying the reduction in the agglomeration and energy consumption of microspheres in aqueous suspension. Rheology test demonstrated that the suspension (5.0 wt%) of nanocomposite microsphere with 2.0–3.0 wt% O-MMT behaved as pseudoplastic fluid, Newtonian fluid and dilatant fluid in turn at the shear rate from 10 s −1 to 1000 s −1 , which indicated a better arrangement of microspheres in suspension under shear stress. G′ and G′′ of the suspension of nanocomposite microspheres with 3.0 wt% O-MMT were 696.6 times and 84.4 times higher than those of the terpolymer suspension, respectively, and the corresponding viscosity was 10.4 times higher at 90 ℃. These superior properties of nanocomposite microspheres will meet the tough requirements of oilfield development.
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高影响因子
Environmental Science-Water Research & Technology
·
2019
·Vol. 5
·期 10
·1736-1747
·
IF 4.195
Chuanchuan Cui,Shuguang Zhang
In order to control the formation of inorganic calcium scale and improve the environmental benefits of coal water slurry, a non-phosphorus-containing and multipurpose copolymer IA–AMPS–APEG was successfully prepared. The chemical structure, molecular weight and thermal stability of the copolymer were characterized by FTIR, GPC and TGA. FTIR confirmed that the structure of the copolymer was consistent with the expected structure. The results of GPC and TGA showed that the copolymer's number average molecular weight was 31 870, and it had excellent thermal stability. The scale inhibition performance of the copolymer was investigated to determine the optimal synthesis conditions: n(IA) : n(AMPS) : n(APEG) = 1 : 2 : 0.33, the dosage of initiator is 4% of the total mass of the monomers, and the reaction temperature and time were optimized to 80 °C and 4 hours, respectively. The maximum scale inhibition efficiencies against CaCO3 and CaSO4 scale deposits were 94.35% (24 mg L−1) and 85.69% (22 mg L−1). Morphologies and crystal structures of the scale deposits were studied with SEM, TEM and XRD techniques. The results demonstrated that the surface morphologies and crystal structures of the inorganic scale deposits were significantly destroyed by the copolymer. In addition, the prepared coal water slurry using IA–AMPS–APEG as a dispersing additive had a high concentration, low viscosity, and good fluidity and stability. In short, the novel and multifunctional copolymer in this work is considered to be an increasingly promising candidate not only as a scale inhibitor in cooling water and reverse osmosis systems but also as a dispersant used in the preparation of coal water slurry.
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高影响因子
COLLOID AND POLYMER SCIENCE
·
2013
·Vol. 292
·期 3
·653-660
·
IF 2.161
Luo Jing,Zhou Qun,Sun Jun,Liu Ren,Liu Xiaoya
Well-defined water-dispersible polyaniline (PANI) nanoparticles were synthesized by in situ chemical oxidative polymerization of aniline in the presence of an amphiphilic P(AMPS- co -VM) copolymer micelle. P(AMPS- co -VM) copolymer was prepared by the free radical polymerization of 7-(4-vinylbenzyloxyl)-4-methyl-coumarin (VM) and 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) which can self-assemble into micelles in aqueous solution. Here, P(AMPS- co -VM) copolymer micelle is used not only as soft template but also as acid dopant in our reaction system. The structure, size, and morphology of PANI nanoparticles were characterized by various experimental techniques. It is found that the morphology and the size of the PANI nanoparticles strongly depend on the molecular characteristics of the P(AMPS- co -VM) copolymer. The synthesized PANI nanoparticles behaved as particulate emulsifier for the stabilization of oil-in-water emulsions.
研究领域:
材料科学
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化学工程
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纳米技术
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DOI
高影响因子
JOURNAL OF APPLIED PHYCOLOGY
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2024
·Vol. 36
·期 4
·1781-1792
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IF 2.8
Zhu Bingkui,Sun Fengjie,Gao Zhengquan,Yao Ting,Han Subing,Zhang Hao,Ma Yuyang,Wu Yuyong,Du Ran,Meng Chunxiao,Cui Yulin
As harmless alternative of antibiotics, two antimicrobial peptides (AMPs), including anti-lipopolysaccharide factor isoform 3 (ALFPm3) and cathelicidin (CATHPb1), were co-expressed in the common fish food Tetraselmis subcordiformis. Lysates from T. subcordiformis transformant were able to inhibit the bacterial growth of Staphylococcus aureus, Vibrio parahaemolyticus, and Vibrio splendidus. To test the effects of AMPs in vivo, turbot ( Scophthalmus maximus ) underwent three dietary treatments, including commercial feeds (CON group), commercial feeds mixed with wild-type T. subcordiformis (WT group), and commercial feeds mixed with a mutant strain of T. subcordiformis (CSD group). Compared to CON group , both CSD and WT groups showed an increase in both the relative abundance and diversity of beneficial bacteria. The content of malondialdehyde was reduced and the enzymatic activities of lysozyme were increased in plasma. Comparisons of the biochemical factors in CSD group with those in CON group revealed that the relative abundance of Vibrio was decreased from 92.7% to 75.1%, and the number of bacteria containing the potentially pathogenic phenotypes was reduced. In the CSD group, the enzymatic activities of catalase and the expression levels of IgM, NKEF, IFNγ, MHC I, and IL-8R were higher compared to the WT group, whereas the levels of both TNFα and IL-1β were reduced. These results indicated that as an oral delivery vehicle for the AMPs, T. subcordiformis transformant improved the immunity, inflammatory response, and gut microbiome community of turbot.
研究领域:
海洋生物学
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免疫学
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微生物学
·
水产养殖
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2019
·
IF 7.65
Yanyan An,Huaili Zheng,Xinyu Zheng,Qiang Sun,Yuhao Zhou
In this study, our group grafted 2-acrylamido-2-methylpropane sulfonic acid (AMPS) onto the surface of hollow glass microspheres (HGM) and successfully prepared AMPS grafted floating adsorbent (AFA). The prepared AFA carries a large amount of negative charges, and the adsorptions of cationic dyes are achieved under the action of strong electrostatic interaction. Furthermore, due to the unique shell structure of AFA, it has a stable self-floating ability, which may change the traditional separation method to make the adsorbent easier to enrich and separate from water surface. Characterizations of AFA by scanning electron microscope , energy dispersive spectrometry , X-ray photoelectron spectroscopy. Fourier transform infrared spectra , Brunauer-Emmett-Teller surface areas, thermogravimetric analysis , and X-ray diffractometer shows the successful grafting of AMPS. Adsorption experiments confirmed that the adsorption capacities of AFA for methylene blue , malachite green, basic fuchsin and crystal violet under optimum conditions were 436.8 mg g −1 , 637.6 mg g −1 , 457.8 mg g −1 , and 399.4 mg g −1 , respectively. At the same time, AFA has excellent recyclability , and its adsorption capacity can be maintained after 6 cycles of reuse.
研究领域:
环境科学
·
材料科学
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2019
·
IF 3.131
Xiaomin Tang,Ting Huang,Shixin Zhang,Wei Wang,Huaili Zheng
Hematite wastewater containing dissolved heavy metals is a potential threat to eco-environment and human health. Flocculation as an efficient and cost effective water treatment technology should be applied in its treatment. A sulfonated chitosan-based flocculant (CS-g-P(AM-AMPS)) was prepared via graft copolymerization. Two synthesis pathways and reaction products with different molecular structure were discovered in processes. CS-g-P(AM-AMPS) possessed the multifarious functional groups that contributed to its excellent performance in hematite wastewater treatment. Bridging, adsorption and entrapment in coagulation-flocculation were enhanced due to CS-g-P(AM-AMPS), and the impressive floc size and high removal efficiency were represented in the treatment as well. Dissolved heavy metals in the wastewater were removed by the chelation of sulfonate group in CS-g-P(AM-AMPS), the adsorption of other functional groups and the co-settlement with flocs. CS-g-P(AM-AMPS) will have the potential application in industrial wastewater treatment for its high flocculation performance, thermal stability and solubility.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
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2025
·
IF 8
Mingwei Wang,Bin Li,Zhendi Wang,Ling Wang
Aimed at overcoming the shortcomings of current single-component internal curing agents, two superabsorbent polymer (SAP) systems (AA-AMPS and AM-AMPS) were synthesized using three monomers: 2-acrylamido-2-methylpropane sulfonic acid (AMPS), acrylic acid (AA), and acrylamide (AM). The absorption and release behaviors of these systems and their effects on autogenous shrinkage and compressive strength were systematically evaluated. The pore-forming absorption ratio ( Q pf ), defined as the SAP absorption at the final setting time, was measured using fluorescence impregnation and digital image processing. The influence of SAP chemical composition on internal curing performance was analyzed in terms of ionic crosslinking and repulsion effects. In terms of the 7-day and 28-day compressive strengths, Q pf and the pore-forming effective water-to-cement ratio (i.e., effective water-to-cement ratio at final setting) are identified as the main influencing factors. In the AA-AMPS series, as the content of AMPS ( m AMPS ) increases, the ionic crosslinking effect weakens while the ionic repulsion effect strengthens. This leads to an upward trend in Q pf , resulting in a higher porosity induced by SAP and a subsequent decrease in compressive strength. In the AM-AMPS series, Q pf exhibited a non-linear trend, peaking at 50 % m AMPS . Regarding autogenous shrinkage, Q pf and the water release rate of SAPs were determined to be the main determinants. In the AA-AMPS series, owing to the ionic crosslinking effect of AA, the water release rate of this series of SAPs is relatively faster. The increase in m AMPS weakens the ionic crosslinking effect and enhances the ionic repulsion effect, leading to an increase in Q pf , which results in more water available for reducing autogenous shrinkage and an expansion of cement paste. In the AM-AMPS series, the ionic crosslinking effect of AMPS is weaker, resulting in a slower water release rate for this series of SAPs. As m AMPS increases, the ionic crosslinking effect is enhanced, which improves the water-release capability of SAPs and strengthens their effect on reducing autogenous shrinkage. This study elucidates the mechanism by which the ion effect influences the internal curing performance of AMPS-based SAPs, thereby providing valuable insights into the relationship between their chemical composition and performance.
研究领域:
材料科学
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土木工程
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高分子化学
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建筑材料
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高影响因子
危险品化学品经营许可证（带存储）