Journal of Environmental Chemical Engineering
·
2022
·
IF 7.968
Chengcheng Shen,Li Gu,Sihao Chen,Yajuan Jiang,Peng Huang,Heng Li,Huayang Yu,Dong Xia
Effective utilization and resourcelization of sewage sludge into value-added by-products and insights into its environmental impacts during the fabrication process are urgent tasks to be tackled. Here, we adopt FeCl 3 to activate and functionalize sewage sludge to form FeCl 3 -activated biochars, which exhibited high adsorption capabilities for the treatment of toxic As(III) and Cr(VI) containing wastewaters. Kinetic studies suggested that the adsorption of As(III) and Cr(VI) species onto the biochar surface was attributed to physisorption and chemosorption, respectively. Equilibrium was reached after 3 h for the adsorption of Cr(VI), and slightly slower for that of As(III). Additionally, the structural stability of the adsorbent was maintained even in wastewater with high acidity (pH = 1), as corroborated by microscopic observations. Structural characterization of the adsorbents after adsorption showed that the excellent adsorption performance originated from adsorptive functionalities of the surface functional groups and the active Fe 3 O 4 particles forming Fe-O-As(III)/Fe-O-Cr(VI) complexes with the As(III)/Cr(VI) adsorbates. Evaluation via the green degree method demonstrated that transforming sewage sludge into biochar exerts very low impacts on the environment. Hence, this work offers a green alternative to convert the hazardous sewage sludge into value-added biochar materials, which can be further exploited as supporting frameworks for multifunctional catalysts or expanded to be investigated in reducing carbon footprints and energy conversion areas.
研究领域:
环境科学
·
废物管理
·
水处理
·
材料科学
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DOI
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2023
·Vol. 26
·期 2
·2301381
·
IF 3.6
Wenqiang Guo,Beibei Zhou,Yulong Zou,Xili Lu
Near-infrared (NIR) light-responsive shape-memory polymers have drawn increasing attention because NIR light is safe and easy to perform in biological applications. Herein, a novel NIR light-responsive shape-memory polymer composite is developed, which comprises poly( l -lactide) (PLLA) matrix and surface-modified magnesium oxide (MgO) nanoparticles by ferric chloride (FeCl 3 ) and tannic acid (TA) (FeCl 3 –TA/MgO). This design can fully combine the printability and shape-memory effect of PLLA, the excellent bioactivity, and the outstanding photothermal effect of MgO nanoparticles modified by FeCl 3 –TA. The PLLA/(FeCl 3 –TA/MgO) composite scaffolds with a homogeneously porous structure are further fabricated by 4D printing. The synergetic presence of components and fabrication process can endow the prepared composite scaffolds with enhanced mechanical properties and stable NIR light-induced shape-memory effect, as well as antibacterial and antioxidant properties. With 5 wt% FeCl 3 –TA/MgO particles, the scaffold not only has a compress modulus of 0.93 MPa, which is 4 times that of a pristine PLLA scaffold, but also achieves a shape fixation ratio of 95.7% and a shape recovery ratio of 80.9% under NIR light irradiation at 2 w cm −2 . The PLLA/(FeCl 3 –TA/MgO) composites have great potential for application in the field of bone tissue engineering scaffolds.
研究领域:
材料科学
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生物医学工程
·
纳米技术
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DOI
高影响因子
DESALINATION
·
2025
·
IF 9.8
Huifang Li,Yu Yue,Xiao Wang,Dahuan Liu
Solvent extraction has emerged as an extremely effective and highly promising approach for extracting lithium ions from salt lake brine, primarily due to its remarkable Li + selectivity, cost-effectiveness, and high efficiency. In this paper, the utilization of bis-(2,4,4-trimethylpentyl)-phosphinic acid (Cyanex 272) as an iron-fixed reagent in an organic solution, along with tributyl phosphate (TBP) as the extractant and FeCl 3 as the co-extractant, is proposed. Compared to the traditional TBP-FeCl 3 system, TBP-Cyanex 272 extraction system holds potential advantages in terms of a more environmentally friendly extraction process. Particularly, during the stripping process, the coordination of Fe 3+ with Cyanex 272 and TBP at a lower Cl − concentration allows Fe 3+ to be retained in the organic phase, thereby facilitating a greener extraction process. This method has effectively overcome the technical challenges associated with TBP-FeCl 3 systems, such as strong acid stripping and strong base saponification. Additionally, as an environmentally friendly extraction system, TBP-Cyanex 272 demonstrates exceptional performance in terms of lithium extraction efficiency and phase separation.
研究领域:
化学工程
·
环境科学
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DOI
高影响因子
Energy Science & Engineering
·
2019
·Vol. 7
·期 5
·2237-2246
·
IF 2.893
Yuan Zhao,Hao Xu,Kaifeng Lu,Yang Qu,Lingjun Zhu,Shurong Wang
In this study, the most abundant C5 carbohydrate unit in biomass, namely xylose, was chosen as the feedstock, and its hydrothermal conversion for furfural production was carried out in a green and renewable solvent system composed of water and butanone, in order to study the role of FeCl 3 and [bmim]Cl of ionic liquid catalyst in the conversion process of xylose. A key intermediate named xylulose from Lewis acid-catalyzed xylose isomerization was quantified. It was concluded that appropriate content of FeCl 3 and [bmim]Cl favored the isomerization-dehydration reaction path along which xylose was converted into furfural, while excessive amount of either component would result in side reactions leading to furfural consumption at long reaction times. By comparison between ionic liquid catalysts that had different active metal sites, xylose conversion and furfural yields were found to increase when the Lewis acidity of the metal ions became stronger. Moreover, chlorometallate anions with better catalytic performance than the original neutral salts were formed during catalyst preparation, and in this way, the xylose conversion and furfural formation were further promoted. Finally, the optimized ionic liquid catalyst produced a highest furfural yield of 75% and xylose conversion of 99% at 140°C.
研究领域:
生物化学
·
可再生能源
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
·
IF 7.632
Yuxiang Chen,Hou-Yong Yu,Yingzhan Li
Cellulose dissolution is a worldwide issue in the production industry. Especially, the development of highly efficient and green cellulose solvents has been considered as a key factor to restrict the broad application of different cellulose industries. In this study, different chloride salts, such as LiCl, ZnCl2, CaCl2, and FeCl3, with different water amounts were used as green solvents to investigate the driving force of cellulose dissolution. The superfast and highly efficient cellulose dissolution in ZnCl2·3H2O and FeCl3·6H2O was successfully achieved within 5–20 min, which was confirmed by the results of polarized light microscopy. Moreover, the effect of pH and water amounts of the chloride salts on the cellulose structural change and dissolution ability was investigated for a better understanding of the role of chloride salts during the cellulose dissolution process. Especially, the dissolution mechanism of cellulose in ZnCl2·3H2O and FeCl3·6H2O has been provided compared to other non-derivatizing cellulose solvents.
研究领域:
化学工程
·
材料科学
·
生物质技术
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DOI
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2025
·
IF 4.2
Yonghong Xu,Lingyun Huang,Mei Zhang,Jianhan Zhou,Bo Hu,Louyan Shen,Jian Liu,Dandan Wu,Siyuan Yang
The challenging separation of cassiterite from calcite by flotation stems from their similar floatability, requiring innovative combined collectors to improve process efficiency and selectivity. Here, a novel PTPA/FeCl 3 collector was developed by synthesizing p- tert -butylphenylhydroxamic acid (PTPA) with FeCl 3 . Microflotation tests showed that using PTPA alone yielded 81.80% SnO 2 and 45.87% CaO recoveries, whereas PTPA/FeCl 3 increased SnO 2 recovery to 89.51% while reducing CaO to 27.02%, demonstrating superior separation efficiency. Contact angle measurements confirmed enhanced cassiterite hydrophobicity from the mixed collector. SEM-EDS and XPS analyses revealed effective chemisorption of PTPA/FeCl 3 on cassiterite, where PTPA and FeCl 3 formed a stably adsorbed chelate complex. In contrast, calcite exhibited weak and unstable adsorption. The mixed collector thus combines strong collecting capability with high selectivity for cassiterite over calcite.
研究领域:
矿物加工工程
·
表面化学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2015
·
IF 4.321
Fa-tang Li,Biao Wu,Rui-hong Liu,Xiao-jing Wang,Lan-ju Chen,Di-shun Zhao
Inexpensive N-methyl-pyrrolidone (NMP)-based ionic liquids (ILs) are synthesized by coordinating N-methyl-pyrrolidone with anhydrous FeCl 3 or ZnCl 2 . The introduction of metal chlorides lowers the solubility of NMP for actual diesel. The obtained C 5 H 9 NO·0.3FeCl 3 IL shows remarkable extraction ability for dibenzothiophene (DBT) with Nernst partition coefficients ( k N ) above 7.5, which can be attributed to its low viscosity and bifunctional extractive groups of five-membered ring of NMP and unoccupied orbitals of Fe ion. The oxidative desulfurization of DBT using H 2 O 2 as oxidant and ILs as extractants are investigated. The scavenger experiments and electron paramagnetic resonance (EPR) measurement verify the active species is hydroxyl radical ( OH) responsible for the oxidation of DBT. FeCl 3 -based ILs show much better effects in catalyzing H 2 O 2 to generate OH than ZnCl 2 -based ILs. The process and mechanism for extraction and catalytic oxidation of DBT in an oil–ionic liquid–H 2 O 2 system are proposed. The C 5 H 9 NO·0.3FeCl 3 IL shows excellent recycling performance. After six-run experiment, there is only little loss in activity, which can be ascribed to the high solubility (18,190 ppm) of dibenzothiophene-sulfone (DBTO 2 ), the main oxidation product of DBT, in the IL.
研究领域:
化学工程
·
催化化学
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DOI
高影响因子
DESALINATION
·
2020
·
IF 7.098
Chengyi Zhang,Yingxin Mu,Song Zhao,Wen Zhang,Yuxin Wang
Lithium extraction from brines with the high Mg 2+ /Li + ratio is crucial for sustainable lithium resource and environmental protection. This study incorporated the classic tributylphosphate (TBP)/FeCl 3 system into the polyvinyl chloride (PVC) based polymer inclusion membrane (PIM) to extract Li + from the solution which is rich of Mg 2+ (The initial Mg 2+ /Li + molar ratio is 15). The morphology and composition of PIMs were characterized systematically, and the content of TBP/FeCl 3 carrier in the PIM was optimized. Compared to liquid-liquid extraction, the extraction ratio of Li + for PIM extraction increases by 20% and the separation factor of Li + over Mg 2+ increases by 5%. Besides, the loss ratio of Fe 3+ after one loop of liquid-liquid extraction is 17.79%, which is close to that of PIM extraction after three loops (18.30%), demonstrating that the PIM showed a good stability. Furthermore, the separation factor of Li + over Mg 2+ for the PIM with 50 wt% TBP/FeCl 3 is as high as 176 and the initial flux for Li + is 8.12 × 10 −4 mol m −2 h −1 . This study displays a TBP/FeCl 3 based PIM with high selectivity for Li + , providing a possible membrane technology for lithium extraction from brines.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
LAB ON A CHIP
·
2025
·
IF 5.4
Jie Chen,Penghui Li,Ran An,Aishan Cai,Kaiqi Wang,Zheyu Zhang,Tao Wang,Yuandu Hu
Although shape-controllable alginate-based microgels via droplet microfluidics have been widely investigated, studies have mostly focused on tuning the designs of microfluidic devices and parameters of the crosslinking media, and very little attention has been paid to studying the effect of droplets' compositions on the morphologies of the resulting microgels. In the present study, droplets of aqueous solutions of sodium alginate (SA) with different additives (i.e., 10 wt% dextran, PEG, or glycerol) have been produced from microfluidics and collected in solutions with different concentrations of glycerol (0–70 wt%) and FeCl3 (2–10 wt%). The effect of droplet compositions on the morphologies of resulting Fe-alginate microgels has been systematically investigated. The results showed that the morphologies of the microgels were remarkably influenced by the interactions between the droplets and the collecting solutions, leading to the formation of microgels with different shapes. Additionally, microgels prepared under specific conditions exhibited certain deformation patterns. For example, dimpled microgels with large cavities exhibited an increase in cavity size in collecting solutions with higher concentrations of glycerol and FeCl3 (the value of d/D rose from 0.3 to 0.5, D and d represent the outer contour dimension and the cavity diameter of the microgel). Similarly, red blood cell-like microgels showed an increase in concavity depth as the concentrations of glycerol and FeCl3 increased (the value of D/L rose from 1.7 to 3.7, D represents the horizontal length of the microgel, and L indicates the vertical depth of the concave). The dimple-like microgels were uniquely advantageous in terms of rapid and efficient payload release (up to 98% release in 5 hours, 16.68 μg of total release), significantly superior to the spherical microgels (82% release in 5 h, 12.54 μg of total release). These findings establish a framework for morphological engineering of microgels, offering promising opportunities for applications in payload delivery systems requiring rapid and controlled release profiles.
研究领域:
材料科学
·
生物工程
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产品关联
DOI
PubMed
高影响因子
CHEMICAL PHYSICS LETTERS
·
2022
·
IF 2.719
Hui-fang Li,Li-juan Li,Wu Li
The cause and mechanism of the third phase in the process of lithium extraction using tributyl phosphate(TBP) as extractant, kerosene as diluent, and FeCl 3 as co-extractant were studied. The third phase appeared in the extraction process was because the diluent kerosene had poor solubility to the extracted complex and the TBP as the solvent was not enough to completely dissolve the extracted complex; The addition of EA, BA, MIBK and DIBK contributed to the extraction of lithium and accelerated the phase separation, with clear phase interface and no third phase appearing in the extraction process.
研究领域:
化学工程
·
材料科学
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产品关联
DOI
高影响因子
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
·
2018
·Vol. 18
·期 7
·5049-5053
·
IF 1.354
Meng Xiuqing,Yang Dawei,Fang Yunzhang,Ye Huiqun,Su Wenming
In place of the widely studied graphene, monolayer or few-layer MoS2 flakes are promising materials for next-generation optoelectronic devices. MoS2 has attracted increasing attention in physics and its applications because of its capacity to undergo indirect-to-direct
band gap transition. Raman spectroscopy is a useful and versatile tool to probe the physical properties of pristine and intercalated MoS2. This study investigates for the first time the multiphoton modes of FeCl3- and Zn-intercalated few-layer MoS2 at high
frequencies of 1513 and 1732 cm−1 for FeCl3–MoS2 and 1341 and 1604 cm−1 for Zn–MoS2. The substrates interact with MoS2 during intercalation. The Raman peak intensities of the intercalated samples vary
with intercalation time while keeping the peak position nearly constant. This finding is interesting and suitable for studying other 2D layered materials.
研究领域:
物理学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2025
·
IF 4.7
Feihong Ye,Zhongxin Liu,Lu Zhou
To address the issues of low yield, high cost, and poor recyclability associated with conventional Pt-based catalysts in the hydrosilylation of fluorinated olefins , this study develops an efficient, stable, and economically sustainable RuCl 3 –FeCl 3 /C supported catalytic system . Through a systematic comparison of different supports (activated carbon, α-Al 2 O 3 , γ-Al 2 O 3 , and ZSM-5) and metal loadings, it was found that 5 wt% RuCl 3 supported on activated carbon achieved a perfluorohexylethyltrimethoxysilane (PFOT) yield of 58 % in the first cycle and maintained over 51 % after three cycles. Introducing FeCl 3 at a Ru:Fe molar ratio of 1:3 further enhanced catalytic performance, increasing the first-cycle yield to 79 % and maintaining over 76 % in subsequent cycles. XPS analysis revealed that Fe 3+ effectively suppresses the reduction of Ru 3+ to Ru 0 by forming an electronic buffer zone, thereby stabilizing the oxidation state of the active center and prolonging catalyst lifetime and selectivity. Kinetic studies confirmed that this synergistic effect reduced the apparent activation energy from 31 kJ/mol to 21 kJ/mol. Compared to existing Pt-based systems, the Ru–Fe bimetallic catalyst demonstrates a superior balance of catalytic activity , operational stability, economic feasibility , and industrial scalability.
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高影响因子
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