Energies
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2024
·Vol. 17
·期 13
·3195
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IF 3
WenLong Gao,LiWei Sun,Miao Li,XiAn Ye,QingChun Gao,DongLiang Kong,JunPu An,KuoBo Wang,Fan Yang
This paper focuses on the selection and application of scale inhibitor by studying the problem of pipeline scaling in geothermal well development. Adding scale inhibitor can effectively reduce the treatment cost and achieve a good scale resistance effect, but the commonly used polyaspartic acid scale inhibitor has problems such as poor scale inhibition effect and large use limitations. Therefore, a new modified polyaspartic acid scale inhibitor (His-Tyr-SA-PASP) was prepared using polysuccinimide (PSI) as the raw material and histidine (His), tyrosine (Tyr), and sulfonic acid (SA) as the modification reagent. When the dosage of His-Tyr-SA-PASP was 8 mg/L, the scale inhibition rate of CaCO3was 94.40%. In addition, the scale inhibition effect of His-Tyr-SA-PASP on CaCO3was better than that of PASP. At the same time, under the condition of a static experiment at 75 °C, according to the ion concentration of water samples in different scale zones, this paper also identified the ratio of four composite scale inhibitors. When the dosage of compound scale inhibitor was 100 mg/L, Sodium of Polyaspartic Acid–Diethylene Triamine Penta (Methylene Phosphonic Acid)–2-Phosphonobutane-1,2,4-Tricarboxylic Acid–Amino Trimethylene Phosphonic Acid–Copolymer of Maleic and Acrylic Acid = (10:10:5:1:9), (15:10:5:2.5:2.5), (12.5:5:10:1:6.5), and (15:5:10:4:1) and the scale inhibition rate was more than 95%. Under the condition of a dynamic experiment, the optimized composite scale inhibitor still showed a scale inhibition rate of more than 90%. It provides a useful reference for the practical application of water treatment in geothermal wells and has the prospect of industrial application.
研究领域:
化学工程
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材料科学
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环境科学
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高影响因子
Asia-Pacific Journal of Chemical Engineering
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2025
·
IF 1.6
Jia Lian,Xin Sun,Cheng Xue,Cong Qi
The desalination of seawater has demonstrated significant potential to use solar-driven interfacial evaporation technologies due to its sustainability, outstanding productivity, and kindness to the environment. In this paper, a hydrogel interfacial evaporator was produced, with PVA and SA as the base materials. The addition of carbon nanotubes (CNTs) was used to enhance the photothermal conversion efficiency, and the cross-linking procedure was carried out employing sodium tetraborate decahydrate (borax). The experimental study researched how evaporation efficiency was affected by varying sodium chloride concentrations, light intensity, and borax cross-linking levels. The study confirmed that the hydrogel cross-linked with 4% borax exhibits the best efficiency of evaporation, reaching a 2.709 kg/m 2 · h evaporation rate and 98% evaporation efficiency. Moreover, it demonstrates excellent salt tolerance and stability during the process. This study effectively created an inexpensive, eco-friendly, nontoxic, and easy-to-fabricate hydrogel evaporator, which provides a very important reference value for the development of the novel kind of solar thermal evaporator.
研究领域:
材料科学
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可再生能源
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环境工程
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纳米技术
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
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2023
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IF 5.2
Ning Gu,Yueyang Xu,Yan Yin,Xuzhao Gao,Yongping Zeng
SO x released from the combustion of sulfur-containing compounds in fuels pollute the environment and have a serious impact on human health. Adsorption desulfurization is an effective and environmentally friendly technique for removing sulfur-containing compounds from fuels. Metal-organic frameworks (MOFs) have high specific surface areas and can be easily modified and functionalized, making them excellent candidates for adsorption desulfurization in fuels. In this work, the precursor MIL-100(Fe)-SA was prepared using the hydrothermal method , and the adsorbent Ni@MIL-100(Fe)-SA was obtained by doping Ni 2+ into the resulting MIL-100(Fe)-SA using the impregnation method. FT-IR, X-ray diffraction, scanning electron microscopy, transmission electron microscopy and nitrogen adsorption-desorption isotherms were used to analyze the samples. The results indicated that Ni 2+ was successfully loaded onto MIL-100(Fe)-SA, and the MOF's structure remained stable. The adsorption performance of benzothiophene and thiophene was evaluated through batch adsorption experiments. The adsorption capacities of Ni@MIL-100(Fe)-SA for thiophene and benzothiophene were 23.68 mg S/g and 49.58 mg S/g, respectively. These observations could be ascribed to the π-complexation interactions between Ni 2+ of the framework and thiophenic compounds. The regeneration experiments demonstrated that the spent 11Ni@MIL-100(Fe)-SA-1.5 reach 86% of the adsorption capacity of fresh adsorbent after four cycles. Additionally, the regenerated adsorbent maintained good crystallinity after recycling.
研究领域:
材料科学
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环境科学
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高影响因子
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
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2021
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IF 3.517
Yifan Huang,Lei Wang,Yi Liu,Tingxiao Li,Binjie Xin
The bilayer nanofibrous membrane fabricated via electrospinning technique can be considered as an ideal structure for the treatment of chronic skin diseases and exudative wound dressings. Wound exudate would affect healing and increases the likelihood of infection at the same time. Therefore, it is essential to produce a kind of wound dressing with relatively high hygroscopicity which could absorb wound exudate and provide a relatively dry healing environment. Bilayer nanofibrous membranes of poly(L-lactide-co-ε-caprolactone)/tetracycline hydrochloride- polyethylene oxide/sodium alginate-zinc oxide (PLCL/TCH-PEO/SA-ZnO) with drug delivery potential were prepared by electrospinning for wound healing. Then, a cross-linking which involved soaking the samples in an aqueous solution containing strontium ions for 4 h was conducted. SEM images showed that membranes still maintained the peculiar nanofibrous structure. The spinning aid (PEO) used was removed in the cross-linked alginate without affecting the PLCL/TCH outer layer gave the membrane good mechanical properties and manageability. The hydrophilicity of the mats was tested to evaluate the ability of the bilayer membrane to absorb exudate from the wound. In vitro drug release suggested that antibacterial agents TCH could release continuously more than 10 days. The cross-linked fibrous membrane has improved mechanical properties and fluid repellency, thus representing a barrier to the external environment and effective wound protection. Consequently, the bilayer fibrous scaffold with good hygroscopicity and drug release properties would have wide applications prospects for the treatment of chronic skin diseases and exudative wound dressings.
研究领域:
生物材料学
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药剂学
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医学工程
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Jian Gao,Deyi Zhuang,Bing Yu,Yun Fa,Wansheng Zhang,Xingyong Han,Huimin Li,Maocai Feng
A composite gel microsphere with a three-dimensional porous network structure has been developed: AO/SA-GQDs. • Under the same adsorption conditions, the introduction of GQDs increased the uranium adsorption capacity of the material from 52.584 mg·g −1 to 186.996 mg·g −1 . • AO/SA-GQDs composite gel microspheres exhibited a rapid U(VI) adsorption rate, reaching adsorption equilibrium within 300 min. • The highest experimental U(VI) adsorption capacity reached 231.593 mg·g −1 at 298.15 K and pH 5. • After five cycles, AO/SA-GQDs retained 84.99% of its initial adsorption capacity, with desorption rate above 80%. • The material is easy to prepare, and its raw materials are readily available and inexpensive, suggesting its potential for practical application. Stable uranium supply is essential for the development of nuclear power, and uranium extraction from seawater is regarded as a promising strategy for the sustainable development of nuclear energy. In this study, amidoxime-functionalized sodium alginate/graphene quantum dot composite gel microspheres (AO/SA-GQDs) were prepared via an in situ composite droplet-ion cross-linking method. Sodium alginate served as the matrix, amidoxime groups were introduced as U(VI)-specific binding sites, and graphene quantum dots (GQDs) were incorporated to regulate the pore structure and hydrophilicity of the microspheres. The AO/SA-GQDs microspheres exhibited a porous network structure, with a BET specific surface area of 42.997 m 2 ∙g −1 . Batch adsorption experiments showed that the optimal adsorption pH was 5. Adsorption kinetic analysis demonstrated that the AO/SA-GQDs microspheres reached adsorption equilibrium within 300 min, indicating a rapid U(VI) adsorption rate. At 298.15 K and pH 5, the highest experimentally measured equilibrium adsorption capacity was 231.593 mg∙g −1 , whereas the Langmuir-fitted maximum monolayer adsorption capacity was 244.499 mg∙g −1 . In the presence of various coexisting ions, the microspheres still maintained a high adsorption capacity for U(VI), demonstrating good selectivity. After five adsorption-desorption cycles, the adsorption capacity remained at more than 84% of its initial value, and the desorption efficiency remained above 80%. These results indicate that AO/SA-GQDs composite gel microspheres possess favorable adsorption capacity, selectivity, and recyclability, suggesting their potential for uranium extraction from aqueous environments. Download: Download high-res image (243KB) Download: Download full-size image
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高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2025
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IF 5.6
Ying Huang,Zhengao Wang,Meimei Fu,Dongsong Lin,Fuyu Zhao,Keke Wu,Xia Ren,Xianjun Fu,Wuyi Zhou
Effective wound management remains a major clinical challenge, especially in preventing infections and promoting rapid healing. However, traditional wound dressings often lack multifunctionality, limiting their ability to support hemostasis and antibacterial protection. To address this challenge, in this work, a novel wound dressing was developed utilizing nano-cuttlebone particles, which are rich in calcium carbonate and chitin, to enhance hemostatic and antimicrobial functionality. The dressing, composed of polyvinyl alcohol, sodium alginate, and nano-cuttlebone, addresses the need for advanced wound care solutions. The particle size distribution of the powder was evaluated using a laser particle size analyzer, and the particle size of the nano-cuttlebone was around 75 nm. The drug release experiment showed that the drug release of nano cuttlebone hydrogel was 1.4 times that of micro cuttlebone hydrogel in 48 h. The antibacterial activity of the nano-cuttlebone-doped dressing against S. aureus was 97.32% and against E. coli was 99.99%. The cell scratch test showed that the nano-cuttlebone hydrogel gradually migrated to the central area, and its migration rate was 61.43% after 12 hours. The hydrogel also demonstrated excellent hemostatic ability in a mouse liver injury model and could rapidly stop bleeding within 1 min. In a full-thickness wound model, the nano-cuttlebone hydrogel enhanced collagen deposition and promoted faster wound closure. This study highlights the potential of marine biomaterials for developing multifunctional wound dressings to improve patient outcomes.
研究领域:
生物材料学
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创伤修复
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医学工程
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DOI
PubMed
高影响因子
MATERIALS LETTERS
·
2025
·
IF 2.7
Jian Meng,Shilei Ren,Jie Dong,Juan Li,Shijie Liu,Qi Liu,Ruiping Zhang
Background Photothermal therapy (PTT) has unique advantages, including high temporal and spatial controllability and relatively few toxic side effects, and the development of highly effective photothermal agents could greatly improve the efficacy of PTT. Objective The aim of this study was to investigate the efficacy of poly-2-phenylbenzodithiazole (PB)-based nanoprobes for PTT, and the photoacoustic and magnetic resonance imaging properties and photothermal therapeutic effects of the nanoprobes were systematically evaluated by in vivo imaging and in vitro cellular experiments. Methods PB-based nanoparticles SA-PB were prepared by an in situ initiated polymerisation process, and the physical and chemical properties of SA-PB were characterised by TEM, UV–vis, DLS, Zeta potential and XPS. The photothermal conversion of SA-PB nanoparticles was investigated by NIR laser. The photothermal therapeutic effect of SA-PB nanoparticles was investigated by AM-PI cell live-dead staining method. Results The results of in vivo imaging showed that the nanoparticles (PLGA/ICG/Oxa) could be well applied to photoacoustic imaging and nuclear magnetic imaging, while the photothermal treatment well inhibited the growth of tumour cells. CONCLUSION : In this study, a PB-based nanoparticle, SA-PB, was successfully prepared with excellent photothermal properties as well as good photoacoustic and magnetic resonance imaging capabilities, which has potential applications in PTT
研究领域:
生物医学工程
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肿瘤学
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材料科学
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DOI
高影响因子
APPLIED THERMAL ENGINEERING
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2024
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IF 6.1
Qing-Kai Zhu,Hong-Bei He,Chao-Chen Cai,Ting-Ting Li,Ching-Wen Lou,Jia-Horng Lin,Hai-Tao Ren
Evaporative cooling and radiative cooling are considered to be energy-saving and environmentally friendly cooling technologies. However, the evaporative cooling system requires complex external water supply equipment, and the radiative cooling is susceptible to weather, which hinder the practical application. Herein, TiO 2 was used as the photo-initiator and spectral regulator, and a hydrogel integrating radiative cooling and evaporative cooling was prepared by combining photopolymerization with semi-acidification sol–gel transition method. The obtained hydrogel shows good mechanical strength (elongation at break > 600 %, and fracture stress > 200 kPa), high visible reflectance (>80.0 %) and emissivity in atmospheric window band (>90.0 %). At the same time, due to the introduction of hygroscopic agent CaCl 2 , it can replenish water itself at night. In outdoor experiment, the hydrogel showed a cooling effect of up to 12.5 °C, showing a significant potential for reducing energy consumption in cooling applications. In addition, the synthesis process of hydrogel is green, which aligns with environmental safety and sustainability goals. This study provides a new strategy for developing efficient, environmentally friendly, and low-cost passive coolers to reduce the global energy burden.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
SOFT MATERIALS
·
2019
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IF 0.973
Minying Wang,Le Luo,Lihua Fu,Hua Yang
Polyacrylamide/sodium alginate (PAM/SA) hydrogel was prepared from sodium alginate (SA) and acrylamide (AM) by covalently cross-linking. Temporary shape double network PAM/SA hydrogels were obtained by ionic cross-linking formed by complexation of SA and six metal cations (Fe3+, Cu2+, Ag+, Ca2+, Ni2+, and Co2+), among the PAM/SA—Fe3+ hydrogels has the best shape fixity ratio (83%). When the hydrogel is placed in different recovery liquids (sodium citrate, EDTA, sulfuric acid, and potassium carbonate), the shape recovery ratio (98.9%) is the best in sodium citrate solution, and the recovery time (182 s) of the hydrogel is the shortest. In general, Fe3+, Cu2+, and Ag+ are suitable for the construction of ionic-shape memory hydrogels. The PAM/SA hydrogels also exhibited excellent adjustable mechanical properties by changing metal cations and soaking time. The strategy could broaden the construction of ion-responsive shape-memory hydrogels.
研究领域:
材料科学
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生物医学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 139
·期 5
·51573
·
IF 3.125
Jiayun Shi,Taishan Wang,Jie Han,Yao Liang,Yujia Tong,Weixing Li
A novel SA-f-MWCNTs/PAN composite membrane, sodium alginate- functionalized multi-walled carbon nanotubes/polyacrylonitrile, was prepared to enhance the esterification conversion rate with a pervaporation membrane reactor. The SA-f-MWCNTs/PAN membrane was investigated by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscope. The hydrophilicity, mechanical properties, and separation performance of the composite membrane have been significantly improved. The flux of the composite membrane was 4374 g·m −2 ·h −1 , and the separation factor was 1249 (the water content in the feed was 10 wt%, at 75°C). The composite membrane the trade-off effect between flux and separation factor. The acid conversion rate of SA-f-MWCNTs/PAN membrane was up to 98.3% in 5 h at 75°C, which was a great increase of 18.3% compared with the equilibrium conversion rate of the batch reactor. In addition, SA-f-MWCNTs/PAN membrane exhibited good swelling resistance and reusability. The conversion rate of acetic acid was stable above 95.0% after 8 repetitive tests.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
Materials
·
2023
·Vol. 16
·期 15
·5312
·
IF 3.4
Yong Chen,Youping Gong,Lijun Shan,Chou Yong Tan,MS Al-Furjan,S. Ramesh,Huipeng Chen,Xiangjuan Bian,Yanda Chen,Yunfeng Liu,Rougang Zhou
Cartilage damage is difficult to heal and poses a serious problem to human health as it can lead to osteoarthritis. In this work, we explore the application of biological 3D printing to manufacture new cartilage scaffolds to promote cartilage regeneration. The hydrogel made by mixing sodium alginate (SA) and gelatin (GA) has high biocompatibility, but its mechanical properties are poor. The addition of hydroxyapatite (HA) can enhance its mechanical properties. In this paper, the preparation scheme of the SA-GA-HA composite hydrogel cartilage scaffold was explored, the scaffolds prepared with different concentrations were compared, and better formulations were obtained for printing and testing. Mathematical modeling of the printing process of the bracket, simulation analysis of the printing process based on the mathematical model, and adjustment of actual printing parameters based on the results of the simulation were performed. The cartilage scaffold, which was printed using Bioplotter 3D printer, exhibited useful mechanical properties suitable for practical needs. In addition, ATDC-5 cells were seeded on the cartilage scaffolds and the cell survival rate was found to be higher after one week. The findings demonstrated that the fabricated chondrocyte scaffolds had better mechanical properties and biocompatibility, providing a new scaffold strategy for cartilage tissue regeneration.Keywords:3D bioprinting;additive manufacturing;cartilage regeneration;cartilage tissue engineering scaffold;finite element method
研究领域:
生物医学工程
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组织工程
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DOI
PubMed
高影响因子
Environmental Progress & Sustainable Energy
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2025
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IF 2.3
Qianying Zhou,Xi Wang,Yongkuan Li,Mingyu Ma,Juan Wu,Dengxin Li,Shihong Xu,Wenjing Sang
Heavy metal contaminated soil remediation methods are mostly chemical washing, fixed stabilization, and bioremediation techniques. However, chemical drenching can cause secondary pollution; fixation stabilization remediation is incomplete and may fail; and bioremediation has a long time period. Therefore, in this study, we synthesized a stable millimeter-scale gel spherical adsorbent, UIO-66-NH 2 @SA, to remove the pollutants from the soil contaminated with high concentrations of heavy metals by a combination of aqueous leaching and adsorption without the addition of additional chemical leaching agents. The UIO-66-NH 2 @SA can be recovered by sieving, and it still has the capacity of removing the heavy metals after four adsorption–desorption cycles. The analysis of soil properties before and after adsorption proved that the remediation process would not affect the physicochemical properties and fertility of the soil, and the characterization of x-ray diffraction, Fourier transform infrared, and XPS proved that the adsorption mechanism was mainly ion exchange and functional group complexation.
研究领域:
环境科学
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材料科学
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高影响因子
危险品化学品经营许可证（带存储）