APPLIED SURFACE SCIENCE
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2025
·
IF 6.9
Ting Shi,Mengxin Guo,Hongcheng Gao,Yi Wang,He Li,Mingming Wu,Dongyuan Cheng,Yi Han,Dejin Wang
Tetracycline as a common emerging pollutant has received widespread attention worldwide. In this paper, RMSSx:y composite pellets were prepared by an annealing process to adsorb tetracycline (TC) from wastewater using red mud (RM) and steel slag (SS) as raw materials. The RMSS5:5 composite pellets prepared with a mass ratio of 5:5 at a calcination temperature of 900 °C exhibited excellent adsorption properties. The experimental data were analyzed using Langmuir, Freundlich, and Temkin adsorption models. The equilibrium data fitted both the Langmuir and Freundlich models well. Kinetic adsorption data were analyzed using the quasi-primary kinetic model, the pseudo-secondary kinetic model, the intraparticle diffusion model, and the Boyd model. The maximum adsorption capacity of RMSS5:5 for TC reached 183.78 mg/g. Thermodynamic studies revealed the exothermic and spontaneous nature of the adsorption process. The adsorption mechanism involved the complexation of Fe, Ca with TC, hydrogen bonding, electrostatic interaction, and physisorption. In addition, RMSS5:5 possessed excellent magnetic responsive properties and cycling performance. This study successfully prepared an efficient and cost-effective adsorbent with two industrial solid wastes, which has great potential for TC removal from wastewater.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xujie Yang,Xinru Wang,Xing Wang,Xinke Li,Hanwen Xin,Jinghui Zhou,Dayin Sun
Lignin, a natural polyphenol polymer, is a biocompatible, cost-effective and accessible material. To fully utilize the benefits of lignin, it is crucial to transform its complex macromolecules into nanoscale particles in a single solvent. In this research, an assembly-mediated internal cross-linking method in single solvent was proposed to manufacture cross-linked lignin colloidal particles with nanoscale particle size controlled to be around 50 nm. Then, cross-linked lignin composite particles with a unique “patchy” structure for dental cleansing were obtained by rapidly grafting the cross-linked lignin colloidal particles onto the surface of silica microspheres through the bridging effect of silane coupling agent. The resulting composite particles have rivets with adjustable hardness, significantly lower than traditional abrasives like silica in both hardness and modulus. Through the group cleansing behavior of soft interlocking, a breakthrough has been achieved in the high solid content agglomeration friction mode of traditional abrasives, which effectively reduces tooth wear and exhibits an excellent plaque removal effect.
研究领域:
材料科学
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口腔医学
·
生物材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2019
·
IF 3.375
Xiaojing Liu,Yangcheng Lu
Tween 80 coated magnetic polymer nanocomposite particles (NCPs), as functional materials with good biological application prospects, still confront a challenge in high-yield preparation inhibiting either plain polymer particles or aggregates. In this study, we are devoted to make a breakthrough by using emulsion polymerization solely stabilized by nonionic surfactant Tween 80 and initiated by an oil-soluble initiator, 2,2′-azobis(isobutyronitrile). After carefully investigating the effects of Fe3O4, monomer, initiator, and emulsifier dosages on the monomer conversion, encapsulation efficiency, and particle characteristics, we confirm that a low but sufficient Tween 80 dosage relative to the Fe3O4 dosage enables the high-yield synthesis of NCPs. Using a micromixing method to prepare colloidal Fe3O4 clusters at the reduced Tween 80 concentration allows for the production of monodispersed NCPs with considerable monomer conversion and total encapsulation. The mechanism to achieve controlled NCPs synthesis is also revealed by monitoring and analyzing the time profiles of monomer conversion and products morphology.
研究领域:
材料科学
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生物医学工程
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产品关联
DOI
高影响因子
COLLOID AND POLYMER SCIENCE
·
2014
·Vol. 292
·期 12
·3085-3093
·
IF 2.41
Huang Haibin,Chen Qinhui,He Junhui,Zheng Longhui,Chen Baoling,Lin Jinhuo
Janus materials with anisotropic chemical structures and physical properties have attracted increasing attention due to their diversified potential applications. In this paper, titanium dioxide/3-(trimethoxysilyl) propylmethacrylate (TiO 2 /MPS) was obtained by swelling assisted with extrusion of PS@TiO 2 . Then, the phenolic resin (PF) was coated on the surface of MPS lobe. Finally, TiO 2 /C Janus composite particles were obtained by sintering at the atmosphere of nitrogen. The middle objects during reactive process and the final product were systematically characterized. Results showed that the Janus porous particles of TiO 2 /C were snowman-like structure, in which the average diameter of the carbon lobe was 178 nm and that of TiO 2 lobe was 226 nm. When used as photocatalysts for Rhodamine B degradation in aqueous solution under UV irradiation, the resulted Janus product exhibited more efficient photocatalytic activity than TiO 2 hollow microspheres.
Schematic illustration of swelling polymerization approach to synthesize TiO 2 /C Janus composite particles and its photocatalytic activity for the degradation of rhodamine B
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
PeerJ
·
2023
·
IF 2.7
Gang He,Zhihui Chen,Luyuan Chen,Huajun Lin,Chengcheng Yu,Tingting Zhao,Zhengwen Luo,Yuan Zhou,Siyang Chen,Tianjiao Yang,Guixian He,Wen Sui,Yonglong Hong,Jianjiang Zhao
Tooth extractions can lead to complications such as post-extraction bleeding and bone resorption, which may result in unfavorable outcomes for implant restoration afterwards. To strive for an optimal condition for further restoration procedures, appropriate strategies, such as hemostasis or bone regeneration, are encouraged to be employed. However, the existing products are failed to meet both needs. As a widely employed tissue engineering materials, hydroxyapatite and calcium alginate both have demonstrated excellent performance in osteogenesis. However, their inferior mechanical strength poses a major limitation to their use in supporting the contracted extraction socket, which can easily lead to alveolar crest atrophy and barely achieve satisfying results. Calcium alginate improves the mechanical strength of hydroxyapatite, enabling the formation of new bone tissue and degradable in vivo . In this study, we demonstrated the biocompatibility and haemostatic ability of nCA particles on a rat tooth extraction model. In addition, long-term observation has revealed minimal inflammation and bone tissue regeneration. Our findings suggest a promising insight for clinical applications in hemostasis and bone regeneration after tooth extraction.
研究领域:
牙科学
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组织工程学
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生物材料
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产品关联
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2022
·Vol. 33
·期 9
·2736-2750
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IF 3.348
Chongyang Mai,Li Yang,Chengcheng Lv,Junwen Tian,Qintian Gu,Jian Hu,Yan Jiang,Hongwen Zhang
In this article, we introduce a facile method for preparing triple-scale raspberry-like composite particles. First, the copolymerized microspheres of styrene and 3-methacryloyloxypropyltrimethoxysilane were prepared by suspension polymerization, and then double-sized SiO 2 particles were synthesized by one-pot using the secondary nucleation phenomenon of ethyl orthosilicate. Finally, the styrene copolymer microspheres were combined with SiO 2 particles to form raspberry-like microspheres. Adjusting the feed rate of the precursor and the water content can achieve the transition from dual-scale raspberry-like particles to triple-scale raspberry-like particles. The structure and morphology of the composite particles were characterized by infrared analysis, scanning electron microscope, and so forth, and the contact angle to water was measured. The results show that the superhydrophobic surface prepared by triple-scale raspberry-like composite particles has a static contact angle of up to 158 ± 1°, and a high Cassie-Baxter state stability, which can withstand a pressure of up to 565 Pa. It also shows great application potential in self-cleaning, anti-freezing and so on.
研究领域:
材料科学
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界面化学
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产品关联
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2023
·
IF 10.7
Yang Tang,Chengcheng Gao,Yan Zhang,Xiaozhi Tang
The work aims to study the effects of the mixing order of chitosan, gum Arabic and cinnamaldehyde and the concentration of cinnamaldehyde on the structure and functionality of complex particles. The results showed that non-covalent and Schiff base reactions occurred between cinnamaldehyde, chitosan and gum Arabic. When chitosan and gum Arabic (CS-GA-1:0.3) were mixed first, the complex particles were flat spherical and more compact and existed in aggregate state, with higher particle size, Zeta potential and wettability, and lower interfacial tension. When mixing cinnamaldehyde with chitosan or gum Arabic first (CS-CA-1:0.3 and GA-CA-1:0.3) and adding high concentration of cinnamaldehyde (CS-GA-1:0.9 and CS-GA-1:1.2), the structural compactness and morphological regularity of the complex particles got weakened, leading to the decrease in contact angle and increase in interfacial tension. All complex particles could be effectively used as Pickering emulsion stabilizers. When chitosan:cinnamaldehyde mass ratio reached 1:0.6 and below, the complex particles showed obvious antibacterial properties . The above results laid a foundation for the application of chitosan-based complex particles in the food and medical field.
研究领域:
食品科学
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生物材料学
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产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2018
·Vol. 58
·期 12
·2304-2310
·
IF 1.551
Jianrong Xia,Baoling Chen,Qinhui Chen
Urushiol, the main component of the natural product of raw lacquer, can react with ester easily owing to its two adjacent phenolic hydroxyls, and urushiol-ester compounds can polymerize further attributing to its unsaturated side chain. In this work, poly(urushiol borate) (PUB) was coated on the surface of polystyrene (PS) microspheres by transesterification between urushiol and tributyl borate. Then, the core–shell composite microspheres of polystyrene@poly(urushiol borate) (PS@PUB) were obtained. Finally, we used a general method to synthesize anisotropic grenade-like Janus composite particles of PUB/PS, that is, the core–shell composite microspheres of PS@PUB were swelled assisted protrusion in the emulsion of organic monomer and water. The morphologies of PUB/PS Janus composite particles could be tuned by changing the swelling time and the dosage of organic monomer. POLYM. ENG. SCI., 58:2304–2310, 2018. © 2018 Society of Plastics Engineers
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2025
·
IF 12.4
Junwei Fan,Wenkai Lyu,Jing Li,Fei Hu
In this paper, we optimized the esterification reaction of enzymatic starch by using ultrasonic, and then explored the physicochemical properties of chitosan and OSA starch complex granules. Rice starch, after enzymatic treatment, was subjected to esterification and ultrasonic to produce OSA rice starch. Then, chitosan was used to complex with OSA rice starch. The results indicated that simultaneous ultrasonication and esterification did not significantly enhance the damage to the crystalline structure of starch, and Raman spectroscopy showed a more uniform distribution of OSA groups. The zeta-potential and FT-IR showed chitosan and OSA starch complex mainly relied on electrostatic interaction. Enzyme treatment and ultrasonication can improve the thermal stability of the complex granules and the adsorption stability at the oil-water interface. The complex granules were used as Pickering emulsion stabilizers to obtain very large droplet sizes with excellent stability, which is an excellent Pickering emulsion stabilizer to expand the application of starch-based Pickering emulsions in the food industry in the future.
研究领域:
食品科学
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生物化学
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产品关联
DOI
高影响因子
Food Bioscience
·
2024
·
IF 4.8
Xiao Liu,Fanjun Meng,Cong Yang,Xiaohui Wu,Miao Wang
This study investigated the formation conditions of the soy protein isolate (SPI)/κ-carrageenan (κCG) complex particles (SCP) and their stabilization effect on the structure and rheology of emulsions over the range of SCP concentration ( C p , 0.5%–2.5%, w/v) and oil phase content (φ, 10%–60%, v/v). By conducting turbidity titration of SPI/κCG mixtures with different ratios and ionic strengths, we observed the formation of soluble complexes in all samples at pH 6.0. The saturation complex ratio of SPI/κCG at pH 6.0 was 1:0.2 using isothermal titration calorimetry, and thermal complex with saturation ratio to form SCP as stabilizers could prepare emulsions with smaller droplet size in comparison of other ratios. Microstructure showed that SCP provided stabilization at the interface, and excess SCP formed network in the bulk phase to give solid-like emulsions. Furthermore, the power-law relationships of G′ with particle concentration (G' ∼ C p n ) and oil content (G' ∼ φ m ) was established. The exponent n and m decreased with increase of C p and φ, indicating structure of SCPEs depends on C p and φ . The G'/G″ crossover strain (γ co ) is indicator of breakdown of emulsion structure. For φ ≤ 20%, γ co slightly decreased with increasing C p ; For 30%<φ<50%, γ co increased with increasing C p ; For φ = 60%, γ co significantly decreased with increasing C p . In summary, these findings indicate the structure and rheology of soy protein-based emulsion can be regulated by controlling the formation condition of SCP and altering the SCP concentration and oil content.
研究领域:
食品科学
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生物化学
✓ 已验证
产品关联
DOI
高影响因子
Soft Matter
·
2021
·Vol. 17
·期 12
·3346-3357
·
IF 3.679
Kangle Jia,Yongshun Guo,Yue Yu,Junjie Zhang,Longfei Yu,Wu Wen,Yuliang Mai
Using solely highly hydrophilic particles to stabilize emulsions, especially high internal phase emulsions, has always been an important challenge. Here pH-responsive Pickering emulsions stabilized by a low concentration of bare highly hydrophilic Ludox CL nanoparticles without surface modification or addition of surfactants are developed at neutral pH. The dispersed nanoparticles can be transformed into an aggregate state with a network-like structure near the isoelectric point, which contributes to the stabilization of the emulsions. Moreover, the vdW attraction between particles and droplets also plays a key role in the formation of emulsions, which can make the aggregated nanoparticles adsorb tightly around the droplets rather than penetrate the oil–water interface. The formed protective armor and network-like aggregates separate droplets from each other to prevent coalescence. At a low nanoparticle concentration (0.5 wt%), a high internal phase emulsion can be formed and can last up to half a year. This system can emulsify not only the hydrocarbon oil but also the fluoroalkane oil phase. Finally, organic–inorganic composite particles are fabricated using the template action of the Pickering emulsions. The method of preparing composite particles is more convenient than the traditional Pickering emulsion polymerization which often requires the modification of the surface of the hydrophilic particles or the addition of auxiliary monomers. This study provides a simple green strategy for the preparation of a more stable Pickering emulsion stabilized by surface-inactive nanoparticles and will broaden the scope of applications.
研究领域:
材料科学
·
化学工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Ailian Chen,Hailiang Mu,Changzhi Zuo,Yang Chen
Mesoporous silica (mSiO 2 ) particles are emerging as one of potential abrasives in high-efficiency and damage-free chemical mechanical planarization (CMP) due to their special mechanical and/or chemical characteristics. In this work, the dendritic meso-silica (D-mSiO 2 ) shells with tunable pore sizes were uniformly deposited on the solid silica (sSiO 2 ) core surfaces via a modified biphase stratification approach. As confirmed by FESEM, HRTEM , TEM , and N 2 adsorption-desorption measurements, the obtained spherical sSiO 2 /D-mSiO 2 composites with well-defined core/shell structures presented uniform diameter (ca. 340 nm), high surface area (∼210 m 2 /g), and large pore volume (∼0.3 cm 3 /g). The average pore size (3.6–11.6 nm) and shell thickness of D-mSiO 2 could be adjusted by varying hydrophobic solvents in the upper oil phases (1-octadecene, decahydronaphthalene, and n-hexane) and amount of silica source. Furthermore, the influence of the pore size of the sSiO 2 /D-mSiO 2 composites on oxide-CMP performance was investigated in terms of surface quality and material removal rate. In our experiments, the lowest average surface roughness was obtained for the composites with the largest pore size, which might result from their lowest overall hardness and elastic modulus determined by their largest porosity. In addition, the highest removal rate was achieved when the pore size of the composites was smallest. The enlarged surface area might contribute to enhancing the chemical corrosion, and further promoting the tribo-chemical reactivity between abrasive particles and substrate surfaces. Overall, the presented results are expected to provide experimental and theoretical basis for the structure optimization of mSiO 2 -based abrasive particles.
研究领域:
材料科学
·
纳米技术
✓ 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）