Journal of the Mechanical Behavior of Biomedical Materials
·
2021
·
IF 3.902
Hanxu Zhang,Chen Jiao,Zibo Liu,Zhijing He,Mengxing Ge,Zongjun Tian,Changjiang Wang,Zhen Wei,Lida Shen,Huixin Liang
Calcium silicate is a common implant material with excellent mechanical strength and good biological activity. In recent years, the addition of strengthening materials to calcium silicate has been proven to promote bone tissue regeneration , but its degradation properties require further improvements. In this paper, calcium silicate was used as the matrix, and 10 wt% hydroxyapatite and 10 wt% strontium phosphate were added to im prove the biological activity of the scaffold. The effect of adding different amounts of calcium sulfate dihydrate (CaSO 4 ·2H 2 O) on the degradation of the scaffold was explored. A porous ceramic scaffold was prepared by digital light processing (DLP) technology, and its performance was evaluated. Cell experiments showed that the addition of calcium sulfate improved cell proliferation and differentiation. Simulated body fluid (SBF) immersion tests showed that small amounts of apatite deposits appeared on the fourth day, larger deposits appeared on the 14th day, and degradation occurred on the surface after 28 days of immersion. Mechanical tests showed that the addition of 5 wt% CaSO 4 ·2H 2 O improved the compressibility of the composite. After soaking in SBF for 14 days, it retained its compressive strength (11.8 MPa), which meets the requirements of cancellous bone, demonstrating its potential application value for bone repair.
研究领域:
生物材料
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组织工程
·
生物医学工程
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DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124297
·
IF 7.5
Xuesong Gao,Siwen Tan,Yongwei Wang,Kunhong Gu,Xinglan Cui,Junwei Han
Efficient recovery of valuable metals from copper smelting slag and the resource utilization of phosphogypsum are both urgently needed. To explore the feasibility of their synergistic recycling, this study used CuO and CaSO 4 as model materials to systematically investigate the sulfidation roasting process followed by flotation separation and to clarify the underlying reaction mechanism. Thermodynamic calculations coupled with TG-FTIR-MS analysis revealed a preferential reaction pathway leading to the formation of Cu 2 S and CaCO 3 while effectively suppressing the generation of pollutant gases such as SO 2 . The introduction of NaCl/KCl composite salt additives successfully promoted the growth of Cu 2 S grains, achieving an average particle size exceeding 25 μm under optimized conditions. Flotation tests confirmed the selective separation behavior of copper and calcium in the roasted products. Density functional theory (DFT) calculations indicated that amyl xanthate (PAX) preferentially chemisorbs on the Cu 2 S(100) surface through directional Cu–S coordination, whereas sodium silicate shows stronger interaction with CaCO 3 (104) and remains stable under hydrated conditions. These results provide theoretical support for the selective flotation separation of copper and calcium. This work establishes a theoretical and technical foundation for the co-treatment and green disposal of copper smelting slag and phosphogypsum.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Jiaxin Wang,Junying Li,Jiaqi Qin,Xiajie Shi,Bin Zhao,Xingqian Wang,Zhongde Wang
Fluoride pollution in water remains a global concern, and calcium-containing materials have been widely used for fluoride removal through CaF 2 precipitation. Although the precipitation pathway has been established in calcium sulfate dihydrate (CaSO 4 ·2H 2 O)-based defluoridation, the crystallization kinetics and growth mechanism of CaF 2 in heterogeneous systems have not been quantitatively studied. Here, we combined the chemical potential gradient model with crystal growth kinetics analysis to investigate the crystallization behavior of CaF 2 during defluoridation by CaSO 4 ·2H 2 O. The growth kinetics of CaF 2 was analyzed using the apparent driving force derived from the concentration of the bulk solution. The growth mode was analyzed through kinetic fitting and predictive validation, and the results were consistent with the two-dimensional growth mechanism. The CaSO 4 ·2H 2 O surface served as a heterogeneous nucleation substrate that promoted CaF 2 crystallization. Further analysis indicated that each condition had an impact on crystallization kinetics. The dosage of CaSO 4 ·2H 2 O and stirring speed mainly affected the kinetic rate constant, while the initial fluoride concentration and pH value simultaneously affected the thermodynamic driving force and kinetic rate constant. Complementary XRD analysis and thermodynamic simulation confirmed that CaF 2 was the only crystalline product. Comparative evaluation with other calcium-based materials highlighted the excellent performance and economic advantages of CaSO 4 ·2H 2 O. This work goes beyond empirical descriptions of fluoride removal efficiency and provides quantitative mechanistic insights into the crystallization pathway of CaF 2 in calcium-based defluoridation systems. The findings contribute a kinetic and thermodynamic basis for controlling crystallization and potential recovery of CaF 2 from fluoride-containing water.
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高影响因子
Materials Today Communications
·
2020
·
IF 2.678
Zhi-jian Zhang,Man-ling Lu,Jun Liu,Hua-lin Chen,Quan-liang Chen,Bin Wang
A fluorescent-tagged and carboxyl-terminated hyper-branched waterborne polyester (HBP-AP) was prepared and characterized. Acted as CaSO 4 scale inhibitor, its application conditions such as the dosage, Ca 2+ concentration and pH value, were investigated to optimize the scale inhibition efficiency. In order to provide some theoretical supports for the scale inhibition mechanism of hyper-branched polymers, the scale inhibition mechanism for CaSO 4 was then investigated in detailed. The experimental results showed that the HBP-AP provided an excellent scale inhibiting efficiency for CaSO 4 , which was as high as 98.8 % at dosage of 15 mg/L, and performed well both at high Ca 2+ concentration and extended pH value. Besides, the HBP-APTA showed good solubilizing property and dispersion ability. The XRD , SEM and CLSM have been used to character the CaSO 4 scale crystal. Especially, with the help of CLSM technology, it is convenient to observe how the prepared hyper-branched inhibitor affected both the CaSO 4 crystal nucleation process and crystal growing process, allowing us to understand the scale inhibition mechanism easily for its leading the scale inhibition process visualization.
研究领域:
材料科学
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化学工程
·
环境科学
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 30
·40861-40873
·
IF 7.8
Cao Haihua,He Cheng,Yan Minyue,Zhu Xun,Yang Yang,Liao Qiang
Despite the high energy density, intrinsic safety, and low cost that render aqueous zinc-ion batteries attractive, their practical viability is compromised by capacity decay and internal short circuits—phenomena traceable to uncontrolled dendritic growth during non-uniform Zn stripping/plating. In this work, we propose a cost-effective nanoporous CaSO 4 coating strategy to enable the uniform zinc deposition. In situ dendrite visualization, scanning electron microscopy, and laser confocal microscopy collectively corroborate its exceptional dendrite-suppression capability. The artificial interlayer's ability to homogenize the interfacial electric field underpins the remarkable cyclability of the Zn@CaSO 4 symmetric cell. Consequently, it maintains stable operation for over 1700 h at 1 mA cm –2 and 1 mAh cm –2 , a duration that represents a 16-fold improvement relative to an unmodified Zn electrode. Furthermore, extended cycling reveals the durability of the Zn@CaSO 4 ||MnO 2 configuration. At a current density of 1 A g –1 , it maintains a specific capacity of 158 mAh g –1 over 1000 cycles, achieving a capacity retention as high as 72.7%. The study pioneers nanoporous CaSO 4 as a low-cost, eco-friendly, and readily scalable protective layer for Zn anodes, significantly enhancing cycling stability and capacity retention.
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PubMed
高影响因子
ACS Catalysis
·
2026
·
IF 13.6
Qi Jiaqi,Zheng Shuzhe,Cheng Yi,Mushina Selvi,Wang April Zhan,Zhang Li,Lu Jiong,Cao Xun,Yap Wei Jie,Tan Mingwu,Tian Jinshu,Zhang Lili
Acetylene semi-hydrogenation is critical for industrial polymer-grade ethylene production. Copper-based catalysts can achieve high selectivity via Cu + /Cu 0 interfacial sites, yet excessive Cu + reduction under reaction conditions disrupts this balance, depletes active ensembles, and causes rapid deactivation. Current strategies show limited efficacy, and both the dynamic structural evolution and effective Cu + stabilization mechanisms remain unclear. Herein, we show that in situ formed CaSO 4 greatly boosts NiCu catalyst durability by stabilizing Cu + -rich interfacial sites and inhibiting Cu + over-reduction. A combination of in situ characterization techniques and density functional theory (DFT) calculations revealed the dynamic evolution of the Cu + / Cu 0 active sites and confirmed that CaSO 4 , interacting strongly with surface Cu species, effectively suppresses the reduction of Cu + by modulating Cu–O bonds. The optimized catalyst achieves an acetylene conversion of ∼98%, ethylene selectivity of >94%, and a deactivation rate constant of 4.52 × 10 –4 ± 6.16 × 10 –5 h –1 and maintains stable operation for 100 h. This work offers atomistic deactivation insights and proposes an interfacial electronic-structural stabilization strategy for durable semi-hydrogenation catalysts.
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高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2022
·
IF 6.633
Li Hu,Xuze Hu,Zechun Tan,Lan Guo,Jiawen Wu,Jilin Wei,Junsheng Qi,Changjun Zou
Currently, reducing the formation of calcium scale is an important challenge for seawater utilization in the cooling water system of offshore oil and gas platforms. The combination of linear carboxymethyl β-cyclodextrin-epichlorohydrin polymer (L-CM-β-CD-EP) and citric acid-dopamine-epichlorohydrin polymer (CA-DA-EP) as an eco-friendly scale inhibitor was studied by the static experiments. We observed that L-CM-β-CD-EP/CA-DA-EP displayed excellent scale inhibition efficiency of 94.6 % and 92.5 % against CaCO 3 and CaSO 4 , respectively, at the 19.2 mg/L inhibitor (Ca 2+ = C O 3 2 - = 2400 mg/L, Ca 2+ = S O 4 2 - = 800 mg/L). XRD and SEM images of scale crystal exhibited that CaCO 3 and CaSO 4 crystals were deformed and transformed by L-CM-β-CD-EP/CA-DA-EP, which was attributed to multiple inhibition effects, including lattice distortion, chelation, and host–guest synergistic effects. More importantly, the host–guest synergistic effects of L-CM-β-CD-EP and CA-DA-EP can significantly improve the scale inhibition performance of L-CM-β-CD-EP/CA-DA-EP. Besides, the TOC results analysis showed that L-CM-β-CD-EP/CA-DA-EP possessed excellent biodegradability, low bioaccumulation, and ecotoxicity.
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
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Kui Wang,Yeqi Fu,Yanbi Li,Chunyun Tu,Weijiang Huang,Qin Tian,Wei Yan
Reusing phosphogypsum (PG) is of great significance as the negative effect of increasing PG pollution on the environment is now incontrovertible. Herein, nano-CaSO 4 particles were fabricated using PG through a facile yet effective solvent-thermal method, and their influence on the thermomechanical properties and electrochemical properties of polymeric solid electrolytes was further investigated. Results indicated that cubic nano-CaSO 4 particles could be obtained by regulating the concentrations and types of surfactants and concentrations of H 2 SO 4 and HNO 3 . Furthermore, nano-CaSO 4 fillers at a content of 10 wt.% could simultaneously improve the mechanical properties, flame retardancy, and ionic conductivity of polyvinyl oxide-based solid electrolytes. Nano-CaSO 4 (10 wt.%) could enhance the strength by two times and modulus by more than four times, improve the limiting oxygen index from 19.5% to 23.1%, reduce the total heat release rate from 17.9 to 16.2 kJ/g, and increase ionic conductivity by more than two times at 60°C. This study provides a facile yet economic strategy for fabricating cubic nano-CaSO 4 using PG and exhibits an excellent utilization prospect for high-safety all-solid-state batteries.
研究领域:
材料科学
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化学工程
·
电化学
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纳米技术
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环境科学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Xinxia Tian,Jian Wang,Lei Tian,Yang Yang,Yangyang Wei,Guorong Xu,Jinbin Chen,Quan Kang,Jun Zhang,Yan Jin,Zhaokui Li
Long-term stable operation of nanofiltration membranes is critical to ensure safe and efficient water treatment processes, requiring membranes that exhibit both high permselectivity and robust scaling resistance. This study presents a novel surface functionalization strategy based on the dual-functional monomer betaine hydrazide hydrochloride for tailoring the surface charge of nanofiltration membranes. The functionalized membranes demonstrated a combination of high water flux, efficient monovalent/divalent salt separation, and good resistance to CaSO 4 scaling – a prevalent and persistent challenge in membrane processes. The optimal functionalized nanofiltration membranes displayed a water flux of 59.8 L·m −2 ·h −1 and a Na + /Mg 2+ separation factor of 48.6, corresponding to improvements of 32.3 % and 120.9 %, respectively, over the control membrane. In addition, the membrane achieved superior Li + /Mg 2+ separation, reducing the Mg 2+ /Li + ration from 80 in the feed to 1.328 in the permeate with a Li + /Mg 2+ separation factor of 60.6. This separation factor represents a 112.6 % improvement over that of the control membrane. Long-term scaling tests revealed improved anti-scaling performance, with the functionalized membrane retaining 91 % of its initial flux after 96 h of Ca 2+ and SO 4 2− exposure, compared to only 83 % for the control membrane. Real-time optical coherence tomography in situ monitoring further confirmed the enhanced scaling resistance of the functionalized membrane. These results highlight the great potential of functionalized nanofiltration membranes for high-performance desalination and ion separation applications.
研究领域:
膜科学与技术
·
水处理工程
·
材料表面改性
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分离科学
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环境工程
·
化学工程
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高影响因子
JOURNAL OF FOOD PROCESS ENGINEERING
·
2026
·Vol. 49
·期 5
·e70567
·
IF 3.5
Fan Zhang,Shaofeng Yuan,Hang Yu,Weirong Yao,He Qian,Yuliang Cheng
Whole soybean tofu, free of okara byproduct, has gained popularity for higher utilization rate of raw material and lower production cost compared to traditional tofu. In this study, whole soybean pressed tofu samples induced by four co-coagulants were prepared by ultrafine grind treatment combined with high-pressure homogenization to the soymilk. The synergetic usage of CaSO 4 and MgCl 2 significantly enhanced the gel strength with 2.01 and 0.66 N, respectively, compared to individual coagulant. This could be attributed to the different mechanisms of CaSO 4 and MgCl 2 in the gelation process. Furthermore, tofu samples with continuous amounts increase/decrease of CaSO 4 /MgCl 2 formed different physicochemical and textural characteristics. Relaxation times measured by nuclear magnetic resonance indicated water moisture gradually decreased with the reduce of T22 component to the minimum of 81.81%. Moreover, chemical interactions analysis showed the proportion of disulfide bonds increased with the amounts of both coagulants, to a maximum of 40.60% with 4.5‰ CaSO 4 /0.5‰ MgCl 2 added, and then decreased. Correlation analysis confirmed proportion of disulfide bonds showed a positive correlation with gel strength, textural characteristics and β-sheet proportion in the protein secondary structure, furtherly testifying the transformation from α-helix to β-sheet led to the changes of chemical interactions and thus affecting tofu properties.
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高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2020
·
IF 4.419
Woo Sung Yum,Jung-Il Suh,Do Hoon Kim,Jae Eun Oh
Recently, the combined use of calcium oxide (CaO) and calcium formate (Ca(HCOO) 2 ) has been proposed as an alternative activator for ground granulated blast furnace slag (GGBFS) (referred to as CaO-Ca(HCOO) 2 -activated GGBFS system). However, this clinker-free binder system produces calcium aluminate hydrate (C 2 AH 8 ), generally leading to the degradation of cementitious binder systems by its conversion to other phases. Thus, in this study, attempts to remove C 2 AH 8 from this system without losing the strength are suggested by the use of two additives (i.e., calcium sulfate (CaSO 4 ) and calcium nitrate (Ca(NO 3 ) 2 ), respectively). Results revealed that the above-mentioned additives completely remove C 2 AH 8 in the initial curing stage via its conversion to ettringite or NO 3 - and NO 2 -AFm, respectively. In addition, the additives reduced the extent of the total shrinkage and the standard deviation of strength results of triplicate samples. However, CaSO 4 exerted a beneficial effect on the strength, while Ca(NO 3 ) 2 exerted a marginal or detrimental effect on the strength. Therefore, this study suggested a new mixture form of an activator, comprising CaO , Ca(HCOO) 2 , and CaSO 4 , to activate GGBFS for maintaining strength without the conversion issue of C 2 AH 8 .
研究领域:
建筑材料学
·
材料科学
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DOI
高影响因子
DESALINATION
·
2024
·
IF 8.3
Xinyuan Yi,Shumin Yang,Xin He,Zhiwei Wang,Min Rui,Yulin Tang
The addition of scale inhibitors is one of the effective methods to alleviate membrane fouling on nanofiltration (NF). In this study, two effective poly-epoxysuccinic acid-based scale inhibitors, namely, valine-poly-epoxysuccinic acid (Val-PESA) and histidine-poly-epoxysuccinic acid (His-PESA), were synthesized by grafting copolymerization . Results showed that Val-PESA and His-PESA could significantly retard the formation of CaSO 4 scaling and effectively mitigate membrane fouling . His-PESA had a better scale inhibition effect on CaSO 4 compared to Val-PESA. The inhibition efficiency was maintained at 96.0 % after 20 h operation for Val-PESA and His-PESA. In addition, the inhibition performance of Val-PESA and His-PESA in the batch test was basically the same as in the NF process. Combining the results of the inhibition tests and the relevant characterizations by scanning electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction, the scale inhibition mechanism was mainly ascribed to enhanced chelation, dispersion and lattice distortion effect. This study sheds light on the designing of novel and efficient scale inhibitors for NF processes.
研究领域:
环境科学
·
化学工程
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DOI
高影响因子
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