COLLOIDS AND SURFACES B-BIOINTERFACES
·
2024
·
IF 5.4
Wenjing Yang,Chenhang Ding,Yibing Ji,Chongxian He,Feilong Xiong,Wurikaixi Aiyiti,Cijun Shuai
The overexpression of glutathione (GSH) within the tumor microenvironment has long been considered as the major obstacle for reactive oxygen species (ROS)-based antitumor therapies. To address this challenge, a selenite (SeO 3 2 − ) and ferric ion co-doped hydroxyapatite (SF-HAP) nanohybrid was synthesized, which is then introduced into poly-L-lactic acid (PLLA) to prepare porous scaffold by selective laser sintering to continuously release Fe 3+ and SeO 3 2− ions. Of great significance is the released SeO 3 2− catabolize GSH to generate superoxide anion (O 2 •− ) rather than directly eliminating GSH, thereby reversing the obstacle posed by its overexpression and achieving a "waste-to-treasure" transformation. The newly generated O 2 •− synergizes with the hydroxyl radicals (•OH) produced by the Fenton reaction between Fe 3+/2+ and hydrogen peroxide, triggering high concentration ROS storms. Collectively, the PLLA/SF-HAP scaffold mediated self-augmented catabolism dynamic progress significantly raised intracellular ROS levels, almost twice as much as PLLA/Fe-HAP scaffold, thereby effectively inducing tumor cell apoptosis. The study provides an innovative inspiration for ROS-based antitumor therapies.
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PubMed
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2024
·
IF 4
Shaopeng Zhang,Jie Ding,Dayong Tian,Jing Wang,Jiale Zhang,Minghua Lu
China faces severe antimony pollution due to long-term, high-intensity mining and smelting operations. Long-term exposure to Sb(III) can lead to chronic respiratory problems. Adsorption method is used to remove Sb(III) because of its simplicity, economy and high efficiency. Therefore, a novel MIL-101(Fe)-Cl/SA hydrogel with oxidation-sorption bifunctionality was developed. 1602 cm −1 and 1025 cm −1 correspond to N H and S = O indicate N-chlorosulfonamide is bonded to MIL-101(Fe)-Cl/SA. MIL-101(Fe)-Cl/SA exhibited rough and wrinkled surfaces with numerous irregular particles by SEM. The presence of O (22 %) and Cl (2 %) confirmed the incorporation of N-chlorosulfonamide and SA into MIL-101(Fe)-Cl/SA by EDS and mappings. The adsorption capacities of MIL-101(Fe)-Cl/SA were 86 mg/g at 298 K and 123.21 mg/g at 328 K by Langmuir model. Kinetic and equilibrium correspond to pseudo-second-order and Langmuir model, respectively. Adsorption was spontaneous and endothermic by thermodynamic analysis. MIL-101(Fe)-Cl/SA exhibited enhanced selectivity in solution containing various ions. Moreover, MIL-101(Fe)-Cl/SA demonstrated potential for regeneration and reuse. The removal process primarily involved oxidation, electrostatic interaction, and complexation. In summary, the capability of MIL-101(Fe)-Cl/SA to adsorb and oxidize Sb(III) underscores its promising potential in mitigating the hazards associated with Sb(III).
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RENEWABLE ENERGY
·
2025
·
IF 9.1
Jingchuan Guo,Yan Gao,Xuankai Cao,Linxuan Li,Xin Yu,Shidan Chi,Haoyu Liu,Guohong Tian,Xudong Zhao
The technology of using electricity generated from renewable energy sources such as wind and solar power for water electrolysis to produce hydrogen has achieved high efficiency, high purity, and environmental friendliness. However, its further development is constrained by the high overpotential of the oxygen evolution reaction (OER) and the high cost of precious metal catalysts. The methanol oxidation reaction (MOR) as an alternative to OER can significantly reduce overall energy consumption and accelerate the hydrogen evolution reaction. This study innovatively utilizes the metal-organic framework (MOF) of NH₂-MIL-88(Fe) to introduce Ni doping, preparing a series of Fe x Ni y -MOF and their bimetallic carbon derivatives (Fe x Ni y /C) through solvothermal synthesis and high-temperature carbonization. Results show that FeNi₂/C exhibited excellent performance in OER, with a Tafel slope of 38.69 mV·dec⁻ 1 and an overpotential of 335 mV at 10 mA cm⁻ 2 , comparable to RuO₂. In MOR, the overpotential was 193 mV, reduced by approximately 140 mV compared to OER, with outstanding stability. The catalytic mechanism was analyzed using ion chromatography, revealing the key role of Ni doping in enhancing catalytic activity and stability. This study provides new strategies for improving the electrocatalytic hydrogen production efficiency of renewable energy and reducing the production cost of hydrogen energy.
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高影响因子
WATER AIR AND SOIL POLLUTION
·
2024
·Vol. 235
·期 12
·1-12
·
IF 3.8
Zhang Ge,Yang Huifen,Lin Xingjie,Miao Yu,Zhang Chi,Li Fangze,Pang Zhikun,Xin Xin
In this work, a novel Ca-Fe-Si-S composite was prepared from thermal desorption residue through FeSO 4 impregnation-pyrolysis. The characteristics and modification process of the composite were specified through a series of analytical methods. And stabilization experiments were conducted to investigate the performance of prepared materials. The optimal Ca–Fe–Si–S composite was obtained at impregnation ratio of 10%, pyrolysis temperature of 900℃ and pyrolysis time of 60 min. The modification process included the dissolution of calcium hydroxide, the formation of gypsum and ferrous silicate, the dehydration of gypsum, the reduction decomposition of calcium sulfate, the decomposition of calcium carbonate and the solid reaction at high temperature. The obtained optimal Ca–Fe–Si–S composite was a multifunctional material mainly composed of high contents of Ca, Fe, Si, S, which corresponding to FeS, CaS, Ca 2 SiO 4 , Ca 3 Al 2 (SiO 4 ) 3 , Ca 3 Fe 2 (SiO 4 ) 3 , Ca 5 (SiO 4 ) 2 SO 4 . The application of 5% optimal Ca–Fe–Si–S composite successfully lowed the leaching concentrations of As, Zn, Cu, Cd in arsenic slag to meet the discharging standard. Meanwhile, the non-specifically bound and specifically bound of As totally decreased by 3.72%, and the acid extractable species of Zn, Cu, Cd reduced by 11.20%, 29.37%, 2.76% respectively. The distribution of stable species for heavy metals significantly increased as united results of surface complexation, chemical precipitation and ion/anion exchange reactions between the prepared composite and heavy metals. The findings of this research provide an effective material for the simultaneous stabilization of multiple heavy metals.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yadan Luo,Chenguang Li,Zhen Liu,Wei Guo,Cuizhu Sun,Shasha Zhao,Qian Wang,Yuanyuan Li,Lingyun Chen,Hao Zheng,Fengmin Li
Phthalates (PAEs) are known to pose a serious threat to the environment and human health duo to their endocrine disrupting effects, thus a great deal of effort has been made to develop destruction technologies for PAEs treatment in the water environment, such as peroxymonosulfate (PMS)-based advanced oxidation technology. Here we prepared an environmentally friendly visible light catalyzer, a heterojunction of carbonitride nanosheets (CNN) doped with NH 2 -iron metal organic frameworks (NH 2 -MIL-101(Fe)), for the activation of PMS to efficaciously remove two representative PAEs—diisobutyl phthalate (DIBP) and diethyl phthalate (DEP)—from the aquatic environment. The CNN@NH 2 -MIL-101(Fe) photocatalyst possesses an excellent visible light harvesting performance with a narrow band gap (1.66 eV), low recombination ratio of photoinduced carriers, and long charge lifetime. The pore volume and surface area of the composite material was increased compared with any single component. The optimum CNN@NH 2 -MIL-101(Fe) catalyst manifested the high performance to activate PMS to degrade DIBP and DEP under visible irradiation with maximum removal of 94.5 ± 2.2 % and 83.4 ± 0.9 %, respectively. Four main active species (•OH, O 2 − •, SO 4 − •, and h + ) were involved in PAEs photodegradation, with h + and SO 4 − • playing a key role in the degradation of DIBP, and h + in the degradation of DEP. The degradation mechanism of DIBP and DEP mainly involved the ester bond cleavage and oxidation by active species. Additionally, the CNN@NH 2 -MIL-101(Fe) heterojunction exhibited high and stable catalytic performance to activate PMS for PAEs destruction under pH 3 – 9. Therefore, this study provides a new strategy for designing and selecting environment-friendly treatment approach for the effective eradication of PAEs via a PMS-based advanced oxidation process.
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高影响因子
Carbon Energy
·
2025
·
IF 24.2
Fangyan Liu,Mengye Wang,Jiawen Liu,Feng Gao,Jiahui Lin,Jiaqing He,Feng Zhu,Chuan Liu,Zhang Lin
Lead (Pb)–zinc (Zn) slags contain large amounts of Pb, causing irreversible damage to the environment. Therefore, developing an effective strategy to extract Pb from Pb–Zn slags and convert them into a renewable high-value catalyst not only solves the energy crisis but also reduces environmental pollution. Herein, we present a viable strategy to recycle Pb and iron (Fe) from Pb–Zn slags for the fabrication of efficient methylammonium lead tri-iodide (r-MAPbI 3 ) piezocatalysts with single-atom Fe–N 4 sites. Intriguingly, atomically dispersed Fe sites from Pb–Zn slags, which coordinated with N in the neighboring four CH 3 NH 3 to form the FeN 4 configuration, were detected in the as-obtained r-MAPbI 3 by synchrotron X-ray absorption spectroscopy. The introduction of Fe single atoms amplified the polarization of MAPbI 3 and upshifted the d-band center of MAPbI 3 . This not only enhanced the piezoelectric response of MAPbI 3 but also promoted the proton transfer during the hydrogen evolution process. Due to the decoration of Fe single atoms, r-MAPbI 3 showed a pronounced H 2 yield of 322.4 μmol g −1 h −1 , which was 2.52 times that of MAPbI 3 synthesized using commercially available reagents. This simple yet robust strategy to manufacture MAPbI 3 piezocatalysts paves a novel way to the large-scale and value-added consumption of Pb-containing waste residues.
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高影响因子
FUEL
·
2024
·
IF 6.7
Guozhang Chang,Shanshan Dai,Huifen Kang,Jie Li,Yong Liu,Jian Zhang,Qingjie Guo
Limited knowledge regarding the controlled preparation of aromatic hydrocarbons (AHs) via catalytic pyrolysis of individual organic components hinders high yields of lignocellulosic biomass-based AHs. This report describes a systematic investigation of AHs generation following catalytic pyrolysis of organic components referring to cellulose, xylan, and lignin. Results show that in a programmed-heating process (20 °C/min), a (Ca-Fe)/HZSM-5 catalyst promoted the degradation of cellulose, xylan, and lignin with respective increment ratios of 24.56 %, 17.29 % and 19.45 %, and significantly increased the release of benzene during the pyrolysis of cellulose and xylan. In a fast-heating process (20 °C/ms), Ca-Fe alone presented a positive effect on bio-oil yield from cellulose, whereas HZSM-5 and (Ca-Fe)/HZSM-5 afforded high bio-oil yields from all three components. Notably, Ca-Fe and HZSM-5 exhibited synergistic effects on the bio-oil and AHs yields following cellulose pyrolysis, and on AHs yield following xylan pyrolysis. Alcohols, aldehydes, and furans were suitable precursors for generating AHs via pyrolysis of both cellulose and xylan. Lignin conversion to AHs involved various potential reaction pathways, including dehydration-deoxygenation-aromatization and dehydration-hydrodeoxygenation. The orders of (Ca-Fe)/HZSM-5 catalyzed pyrolysis of individual components towards AHs generation were xylan > cellulose > lignin. The presence of Ca-Fe particles inhibited deactivation of HZSM-5 in pyrolysis of a cellulose/xylan/lignin mixture.
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高影响因子
Journal of Cleaner Production
·
2024
·
IF 9.7
Jiaxing Wu,Jianqun Bao,Xuya Zhang,Zhuang Yang,Yiqi Liu,Mingxia Zhou,Yajun Wang,Guiyuan Jiang,Wenqing Yao
The efficient activation of peroxymonosulfate (PMS) in advanced oxidation technology is hindered by the low Fe(II)→Fe(III)→Fe(II) cycle efficiency. Herein, we report a Fe(II)/decahedral monoclinic BiVO 4 composite photocatalyst with a highly exposed (010) facet prepared by a hydrothermal method combined with a wet impregnation strategy. The numerous photogenerated electrons on the (010) facet promote the cycling of Fe(II)→Fe(III)→Fe(II) process, thereby significantly enhancing the PMS activation rate. The charge transfer mode of 1% Fe(II)/BiVO 4 was inferred from in situ X-ray photoelectron spectra. The composite catalyst exhibits significantly higher activity (96.7%) than the pristine BiVO 4 without facet regulation (56%). Controlling the crystal facets can effectively separate the photogenerated carriers of BiVO 4 ; the photogenerated electrons catalyze the cyclic transformation of Fe(III)/Fe(II) to efficiently activate PMS and degrade antibiotics. This work confirms the synergistic effect of facet engineering and the photocatalytic PMS activation system and provides a new perspective for the degradation of antibiotics.
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高影响因子
ACS Catalysis
·
2024
·
IF 11.3
Ying Zhang,Junjun Mao,Bo Zhang,Dan Wang,Chenchen Zhang,Yang Lou,Chengsi Pan,Yongfa Zhu
Electrochemical carboxylation of 1,3-dienes with carbon dioxide (CO2) is a feasible method to obtain dicarboxylic derivatives, which are important synthetic intermediates of polymers and pharmaceuticals. However, due to unavoidable byproducts and unfriendly conditions, the formation of pure dicarboxylic acids has been limited. In this work, we report that a bimetallic phosphating CoFeP catalyst on nickel foam (CoFeP/NF) served as a remarkable electrode, which transforms CO2 into multicarbon (C6+) dicarboxylic acids. The synergistic effects of CoFeP catalyst between Co and Fe allow activation of 1,3-dienes mainly, in which electron transfer easier to the 1,3-dienes proceeded to afford radical anion of the diene, pursuant carboxylation with CO2 and further electron transfer formed the ultimate carboxylated products. The reaction can occur in a commercial flow cell with gram-scale amplification. The dicarboxylic acid obtained was up to 1.08 g at a 5 mmol scale of 1,3-dienes, illustrating high electrocatalytic activity and practical application of CoFeP/NF.
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高影响因子
Heliyon
·
2024
·
IF 3.4
Jia-Jie Shen,Shi-Jiao Xue,Zhang-Hao Mei,Ting-Ting Li,Hui-Fen Li,Xue-Fei Zhuang,Lin-Mei Pan
Luteolin is a potent anti-colorectal cancer chemical. However, its effectiveness is hindered by its poor solubility in water and fat, and it is easy to degrade by gastrointestinal enzymes. In this study, a nano-composite carrier, NH 2 -MIL-101(Fe)@GO (MG), based on aminated MIL-101(Fe) and graphene oxide (GO) was developed and evaluated. This carrier co-delivered luteolin and matrine, while marine was used to balance the pH for the nano-preparation. The loading capacities for luteolin and matrine were approximately 9.8% and 14.1%, respectively. Luteolin's release at pH = 5 was significantly higher than at pH = 7.4, indicating it had an acidic pH response release characteristic. Compared to MOF and GO alone, MG and NH2-MIL-101(Fe)@GO@Drugs (MGD) enhanced anti-cancer activity by inhibiting tumor cell migration, increasing ROS generation, and upregulating the expression of Caspase-3 and Caspase-9. In conclusion, this study contributes new ideas and methods to the treatment strategy of multi-component anti-colorectal cancer therapy. It also advances drug delivery systems and supports the development of more effective and targeted treatment approaches for colorectal cancer.
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PubMed
高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
·
2024
·Vol. 50
·期 7
·3033-3052
·
IF 2.8
Huang Guihua,Yang Zizhen,Li Sijia,Wang Zhengwei,Xu Jundong,Zheng Shuqin
In-situ crystallization was used to prepare the composite molecular sieve ZSM-5/MOR (Z/M) successfully, and FeLa-ZSM-5/MOR (FeLa-Z/M) was obtained by loading Fe and La on the surface of the composite molecular sieve by hydrothermal method. The composite molecular sieve combined the water absorption of mordenite (MOR) and the mass transfer performance of ZSM-5, and effectively improved the surface area and porous structure. This zeolite improved the dispersion performance of active sites in Z/M and reduced mutual aggregation between particles, which was conducive to catalytic efficiency. The addition of La increases the number of oxygen vacancies, according to XRD, TEM, XPS, UV-DRS, and other data analyses. Because doping of La stretched the Fe–O bond, reduced the oxygen vacancies’ formation energy, and promoted oxygen vacancies’ formation, which was an essential reason for Fe 3+ reduction and Fe 3 O 4 formation. The addition of La also had a highly dispersed effect on Fe. Under the optimal conditions, with a FeLa mass ratio of 1:1, FeLa-Z/M at 25 mg, H 2 O 2 at 0.5 ml, and a pH of 3, the degradation rate of IC was found to be 97.8% and 99.5% in 5 min and 10 min respectively. Analysis of the reaction indicated that the catalyst followed a first-order reaction kinetic. Free radical quenching experiments confirmed that the main free radicals in the FeLa-Z/M Fenton-like system were hydroxyl radicals (·OH), suggesting a possible catalytic mechanism. Furthermore, the synthesized FeLa-Z/M catalyst exhibited superior performance compared to other methods of IC removal, demonstrating high reusability and efficient degradation even after multiple uses. Graphical abstract
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高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2025
·Vol. 27
·期 2
·1-15
·
IF 2.6
Hui Xianghe,Fang Dong,Wang Guifang,Ran Feng,Zhang Xin,Fu Zewei,Ruzimuradov Olim
Perovskite hydroxystannate (MSn(OH) 6 ) has garnered considerable interest in recent years as a novel flame retardant characterized by its low toxicity and environmentally benign properties. In order to improve the flame retardancy and smoke suppression properties of epoxy resin (EP) matrices, transition metal hydroxystannate (MSn(OH) 6 , M = Fe, Co, Mn) was prepared by a ultrasonic-coprecipitation method and used as flame retardants. The synthesized composites were assessed for their flame retardant characteristics and mechanical properties through the measurement of the limiting oxygen index (LOI), the cone calorimetry test (CCT), and universal tensile testing. Upon the incorporation of 10 wt% of the MSn(OH) 6 flame retardants, the flame retardant of EP composites exhibited marked enhancement, especially manganese hydroxystannate (MHS). Compared with pure EP, the EP/MHS-10 composite demonstrated the best performance, reducing the peak of heat release rate (pHRR), total heat release (THR), total smoke production (TSP) by 60.0%, 14.4%, and 32.6%, respectively. During the process of combustion, the decomposition of MSn(OH) 6 results in the generation of non-flammable gases and water vapor. In the condensed phase, tin (Sn) and transition metals contribute to the formation of a more protective char residue. The residue serves as a physical barrier, effectively isolating the underlying epoxy (EP) matrix material from heat and oxygen.
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高影响因子
危险品化学品经营许可证（带存储）