PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Shanshan Huang,Bolin Li,Gezi Li,Siyuan Zheng,Kanglin Tian,Weimin Xie,Simiao Wu,Jun Wang,Ying Yu,Xiaoman He
There is currently an urgent need to develop technologies for ciprofloxacin (CIP) removal in wastewater owing to its widespread usage in human and animal populations and subsequent transmission into surface water. Aluminum (Al 2 O 3 ) is an excellent carrier, and polydopamine (PDA) is a surface modifier with a high nitrogen content and strong adhesion, and may represent a potential tool for CIP removal in wastewater. However, minimal research has been conducted on using PDA to improve the interactions between carrier and active components and thus improve the ozone utilization efficiency as well as catalytic activity and stability in CIP removal schemes. To address this research gap, study successfully prepared Fe-Mg/PDA@Al 2 O 3 composite materials for the catalytic ozone removal of CIP from water. The influencing factors and degradation mechanisms of the catalytic ozone treatment of ciprofloxacin wastewater and possible antibiotic degradation pathways were proposed. The removal of CIP was mainly carried out through indirect oxidation dominated by hydroxyl radicals (•OH), in addition to catalyst adsorption and direct ozone oxidation, and the oxidative degradation of CIP conformed to a pseudo-first-order reaction kinetic model. Under ideal operating conditions, the CIP degradation efficiency of Fe-Mg/PDA@Al 2 O 3 /O 3 system reached 91.35% after 15 min. The mineralization efficiency of Fe-Mg/PDA@Al 2 O 3 /O 3 system was significantly higher than that of the single-ozone system. After four repeated uses of Fe-Mg/PDA@Al 2 O 3 , the CIP degradation efficiency remained stable, and the metal ion leaching concentration was within the limit, indicating that Fe-Mg/PDA@Al 2 O 3 demonstrated a high catalytic performance and stability.
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高影响因子
Materials Today Bio
·
2025
·
IF 10.2
Xiang Gao,Kewei Li,Yan Huang,Ziyan Long,Yongguo Xiang,Wendi Zheng,Hong Cheng,Huijie Cao,Wenjuan Wan,Shijie Zheng,Xianwen Wang,Ke Hu
Age-related cataracts (ARCs) are major causes of vision impairment globally, primarily resulting from oxidative stress–induced senescence and apoptosis in lens epithelial cells (LECs). In this study, a sodium selenite-induced oxidative stress cataract model in neonatal rats was used to mimic ARC pathology. We investigated the therapeutic potential of Fe-curcumin nanozymes in delaying ARC progression by targeting cellular senescence and oxidative injury. In vitro experiments revealed that Fe-curcumin nanozymes significantly reduced reactive oxygen species (ROS) levels in H 2 O 2 -treated LECs, alleviated cellular senescence, and decreased apoptosis. The levels of superoxide dismutase (SOD) and catalase (CAT) were also markedly increased. Notably, the nanozymes downregulated senescence-associated secretory phenotype (SASP) factors, including IL-6, IL-1β, CXCL1, and TGF-β, indicating suppression of the proinflammatory senescent microenvironment. In vivo , Fe-curcumin nanozyme treatment effectively delayed cataract development in rats. Mechanistically, the nanozymes inhibited both senescence and apoptosis by modulating the p53/p21/BAX signaling axis, primarily through reducing p53 expression and phosphorylation levels. These findings suggest that Fe-curcumin nanozymes represent a promising therapeutic strategy for ARCs by suppressing oxidative damage, cellular senescence, and inflammation through targeting p53-related pathways.
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PubMed
高影响因子
Foods
·
2025
·Vol. 14
·期 8
·1290
·
IF 5.1
Ziyi You,Yushan Chen,Wendi Teng,Ying Wang,Yuemei Zhang,Jinxuan Cao,Jinpeng Wang
Phenolic acids have a positive effect on the processing quality of myofibrillar protein (MP) gels. However, in this study, the addition of ferulic acid (FA) did not have a positive effect on MP gels. To address this issue, we performed the addition and observed the effects on the structure of MP gels by both surface coating and internal cross-linking: addition of FA alone, addition of α-cyclodextrin (CD) to encapsulate FA (MP-FA/CD), and addition of Fe(III) to form a metal–phenolic network structure (Fe @MP-FA) and a metal–cyclodextrin–phenolic acid structure (Fe@MP-FA /CD). It was found that both Fe @MP-FA formed by surface coating and internal cross-linking were able to improve the textural properties of MP gels, including hardness, elasticity, chewability, adhesion, etc. FA effectively promoted the conversion of some of the non-fluidizable water to the bound water morphology, and the addition of Fe(III) effectively enhanced this trend. In particular, the composite network structure formed by Fe@MP-FA/CD more significantly promoted the conversion to bound water and improved the water retention of the gel. Hydrophobic interactions and hydrogen bonding in non-covalent bonding as well as disulfide bonding in covalent bonding were always the main factors promoting the formation of gels from MP after different additions. Meanwhile, different gel treatments lead to changes in the structure of different proteins. Internal cross-linking with the addition of FA promotes protein oxidation, whereas CD reduces the occurrence of oxidation and promotes a homogeneous gel structure. Surface coating with the addition of FA/CD resulted in a reduction in pores in the MP gels and a denser gel structure. However, the addition of internal cross-linking resulted in a gel with a loose and rough network structure. In this study, we compared the common methods of gel enhancement, with the objective of providing a reference for the improvement in the gel texture of meat products.
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PubMed
高影响因子
CHEMICAL GEOLOGY
·
2025
·
IF 3.6
FengTing Wu,ChunYan Luo,YueHan Lu,XueYan Li,KuanYi Li,YingXun Du
The co-precipitation of dissolved organic matter (DOM) and phosphate with Fe(III) at the sediment-water interface plays a crucial role in the biogeochemical cycling of organic carbon (OC) and phosphate (P) in aquatic ecosystems. The fluxes of organic matter and phosphate may occur in a sequential manner. This study investigated how phosphate affected pre-equilibrated Fe(III)-humic acid (HA) co-precipitates and how HA influenced pre-equilibrated Fe(III)-phosphate co-precipitates under varying pH and Fe(III) concentrations. The results revealed that the addition of phosphate to the Fe-HA co-precipitation system generally promoted further precipitation of dissolved Fe(III) with phosphate, resulting in about 9.48–33.15 % of the phosphate being precipitated. This addition had minimal impact on the percentage of pre-immobilized HA but facilitated the release of high-aromaticity HA from the Fe-HA co-precipitate. Conversely, adding HA to the Fe P co-precipitation system increased the concentrations of soluble Fe(III) and phosphate, likely due to the strong complexation ability of HA with Fe(III). The percentage of HA remaining dissolved was lower at lower pH levels and higher initial Fe(III) concentrations. These findings highlight how the timing of phosphate or DOM inputs influences their sequestration. This has important implications for carbon and nutrient storage in aquatic sediments, where fluxes of organic carbon and phosphate may occur in a sequential manner.
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高影响因子
ACS ES&T Engineering
·
2022
·
IF 0
Ting Zhang,Zhelun Pan,Dinggui Song,Hong Huang,Jiang Yu,Yichan Wen,Junlin Lu,Zhenfeng Bian,Xufang Qian
The high reactivity of Fe(0) with Cr(VI) makes it the best choice for Cr(VI) removal. Interstitial compound Fe3C was produced during the carbothermic reduction of mesoporous phenolic resin/ferric ions to form Fe(0)/Fe3C nanoparticles embedded in mesoporous carbon (Fe(0)/Fe3C@MesoC). Fe3C accelerates the electrochemical corrosion process of α-Fe(0) in solution, and the positive/negative equipotential interface that is formed by iron–carbon (Fe–C) microelectrolysis of Fe(0)/Fe3C@MesoC induces the capture of Cr(VI) anions and Cr(III) cations as a result of this process. Cr(VI) was completely reduced to Cr(III) by the Fe(0)/Fe3C@MesoC catalyst with a high electron efficiency (40.5%) relative to nanosized zero-valent iron (1.9%) and Fe@MesoC (32.7%). Surface ferrous ions are the principal reactive species responsible for Cr(VI) reduction (at least 64%); Fe(0)/Fe3C and undetectable surface ferrous ions account for a small part of Cr(VI) reduction (around 28%), and only 8% of Cr(VI) ions are reduced by active hydrogen (H*). The proposed structure of Fe(0)/Fe3C@MesoC provides new insight into iron–carbon material preparation and application in in situ chemical reduction.
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APPLIED CATALYSIS A-GENERAL
·
2019
·
IF 4.63
Peng Wu,Jiaqiang Sun,Mohamed Abbas,Pengfei Wang,Yilong Chen,Jiangang Chen
Hydrophobic SiO 2 -supported Fe-Ni bimetallic catalysts were synthesized by facile hydrothermal method, followed by grind-mixing process. The as-synthesized nanoparticles were appointed as robust catalysts in the methanation process to improve the calorific value of the natural gas. Notably, the functionalization of SiO 2 surface with a hydrophobic layer was performed using a fluorinated alkyl group, as a critical step to prohibit the water-gas shift (WGS) reaction and consequently produce low amount of CO 2 content during the methanation process. The obtained catalytic results demonstrated that Fe 1.5 Ni 1.5 catalyst exhibited an excellent CO conversion of 95.2% at 320 °C with a natural gas calorific value of 56.4 MJ Nm −3 , which is much higher than the previously reported results when traditional Ni-based catalysts used. Moreover, the modified hydrophobic catalyst exhibited a lower CO 2 selectivity compared with unmodified one. This study provides a new and promising insight for the design and development of high-calorie SNG product.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2021
·
IF 4.464
Fuad Abduro Bushira,Shimeles Addisu Kitte,Haijuan Li,Lirong Zheng,Ping Wang,Yongdong Jin
Simultaneous highly sensitive and accurate detection of dopamine (DA) and uric acid (UA) is of great importance since they are important biomolecules that are commonly coexisted in the human body and play a crucial role in numerous physiological and pathological features. In this work, Fe-N 5 single atom catalyst (SAC) supported on graphene was firstly employed for simultaneous electrochemical detection DA and UA. Owing to its unique electronic structure and abundant active sites, under optimal conditions, the enzyme-like Fe-N 5 SAC constructed electrochemical (bio)sensor exhibits excellent linear characteristic responses in the range of 0.005–500 and 0.01–480 µM, as well as the low limit of detection of 0.007 and 0.027 nM for DA and UA, respectively. More critically, the developed electrochemical system shows promising merits of exceptional stability, good repeatability, and, consequently, it was successfully applied for simultaneous sensitive detection of DA and UA in human serum samples.
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高影响因子
Advanced Optical Materials
·
2024
·
IF 8
Rongyi Kuang,Huiwang Lian,Yunfei Zhu,Simin Gu,Lin Huang,Bo-Mei Liu,Jing Wang
Inorganic photochromic luminescent materials hold immense promise as potential candidates for optical information storage applications. Unfortunately, static and single reading mode of photochromic luminescent materials in bright and dark environments pose a security threat to the stored information. Here, a novel material La 2 MgSnO 6 :Er 3+ ,Fe 3+ is developed, possessing both reversible photochromic and adjustable upconversion/downconversion photoluminescent (PL) properties. Upon exposure to 275 nm ultraviolet (UV) light, the sample changes in color from white to brown. And this transformation rapidly reverses when exposed to 365 nm UV light, resulting in a corresponding alteration in luminescence intensity. Notably, when combined with photochromic, the 980 nm excited upconversion PL maintains stable luminescence, while the 365 nm excited downconversion PL exhibits significant intensity changes. Inspired by this unique feature, a dark-field selective dual-mode reading is proposed that depends on the excitation wavelength, including static decrypt in long-time cases and dynamic reading in time-limited situations. These findings have the potential to revolutionize high-security data storage applications and drive advancements in the field.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Bang Xiao,Anqi Jiao,Yiran Zhang,Lin Yang,Xuteng Zhao,Chunping Wu,Dongdong Guo,Reggie Zhan,He Lin
NH 3 detection is of great significance for precise control of the SCR system. In this paper, mixed potential type ammonia sensor using LaCo 1-x Fe x O 3 sensing electrode, YSZ electrolyte, and Pt reference electrode was developed. LaCo 1-x Fe x O 3 sensing materials were made by flame spray pyrolysis technique, and Fe B-site substitution was implemented to enhance the sensing performance. It was observed that in the concentration range of 20–70 ppm at 475 °C, the sensor using LaCo 0.9 Fe 0.1 O 3 as sensing electrode exhibited the highest sensing signal and sensitivity to ammonia among the LaCo 1-x Fe x O 3 -SE sensors (x = 0, 0.05, 0.1, 0.2, 0.3). A sectional linear relationship between the response value change( Δ V ) of that sensor and the logarithm of ammonia concentration within the range of 2–15 ppm and 15–70 ppm was noticed, and the sensitivities were 17.52 and 87.22 mV/decade, respectively. Its lower detection limit reached 2 ppm at 475 °C. Its excellent sensing properties are ascribed to enriched oxygen vacancies and high electrocatalytic performance of the perovskite electrode. Moreover, the sensor exhibited good selectivity against CH 4 , CO, NO, NO 2 , and good stability against oxygen and water vapor concentration fluctuation. Besides, the sensing response to 50 ppm ammonia has been tested for 22 days and only a slight fluctuation within 7 % was observed. Furthermore, the mixed potential sensing mechanism of the sensor was discussed.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Linbo Luo,Sheying Dong,Hao Cui,Longhui Sun,Tinglin Huang
The ecosystems and human health were seriously threatened by hexavalent chromium (Cr(VI)) in wastewater. In this article, using the idea of the highly matched energy band structure between indium sulfide (In 2 S 3 ) and MIL-53(Fe), a Type-II heterojunction has been constructed by loading In 2 S 3 on MIL-53(Fe) microrod to overcome the fault like high recombination rates of photogenerated electron-holes of In 2 S 3 . The composite with 20:1 mass ratio of In 2 S 3 to MIL-53(Fe) (IM-2) was adopted as an optimal sample for efficient photocatalytic Cr(VI) reduction under visible light . Various characterization techniques were used to verify the characteristics of composites and delved into the structure-effect relationship between this heterojunction and its activity. Results showed that the reaction rate constants of the photoreduction process over IM-2 was ~ 4 and 26 times higher than those of pure In 2 S 3 and MIL-53(Fe), respectively, and the catalyst could maintain superior removal efficiency (88.6%) and steady crystal structure after four cycles. First-principles calculations further illustrated that the heterostructure formed between In 2 S 3 and MIL-53(Fe) could effectively accelerate the separation of photogenerated electrons and holes, thus improving the photocatalytic reduction performance. Moreover, the active species analyses revealed that the superoxide radicals and electrons were mainly involved in the reduction of Cr(VI).
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Qing-Ting Sun,Bu-De Xu,Jing Yang,Ting-Ting Qian,Hong Jiang
Co-based catalysts can effectively active peroxymonosulfate (PMS) for organic pollutants degradation. However, the loaded Co on porous materials could easily release into the solution during the reaction. Herein, a stable layered double oxide (LDO)-supported Co-Fe bimetal catalyst, i.e., Co 2 FeAl-LDO, was synthesized and used to activate PMS for the degradation of carbamazepine (CBZ, a representative pharmaceutical and personal care product). Results show that Co 2 FeAl-LDO/PMS exhibited high removal of CBZ (>99%) in 30 min with the reaction rate constant ( k obs ) of 0.2103 min −1 . The high activity of Co 2 FeAl-LDO could be caused by the specific structure of the LDO and the synergistic effect of Co, Fe, and Al on the catalyst. The high CBZ removal (88%) at the fifth run of Co 2 FeAl-LDO and the low cobalt release (0.4 mg/L) indicate the high stability of Co 2 FeAl-LDO. The activation and CBZ degradation mechanisms in this highly efficient system were proposed and validated by identifying the radicals and intermediates of CBZ and comparing the active sites on fresh and used Co 2 FeAl-LDO. pH had a significant effect on CBZ degradation. CoOH + and HSO 5 − were the predominant species involved in CBZ degradation under the optimal pH 6.0. The anions and humic acid (HA) inhibited CBZ degradation as they occupied the active sites of the catalyst. This work provides a new substrate to stabilize the active components, and vital information on the synergistic effect of active components during PMS activation.
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高影响因子
Environmental Science-Advances
·
2023
·Vol. 2
·期 5
·731-739
·
IF 0
Wen Wen,Yina Liu,Zhongping Li,Guangming Wen,Hung-Wing Li,Li Li
In this study, we report a simple pyrolytic strategy for N–C co-doped Fe-based nanoparticles (Fe–N–C) and exhibit their oxidase-mimicking and peroxidase-mimicking activity in a chromogenic reaction with 3,3′,5,5′-tetramethylbenzidine dihydrochloride (TMB) as a substrate. Structural analysis revealed that Fe–NX and Fe3C structures were formed with Fe-Imace coordination compounds as precursors and melamine as the nitrogen source, which provided abundant active sites for the Fe–N–C nanozyme. Interestingly, owing to the blocking effect triggered by π–π stacking between the tetracycline antibiotics (TCs) tetraphenyl skeleton and Fe–N–C, the substrate affinity of the Fe–N–C was significantly blocked, resulting in the solution fading. Under the optimum conditions, the UV absorption intensity versus the concentration of TCs was found to be linear over the range of 0.08–90 μM for tetracycline (TC), 0.1–80 μM for chlortetracycline (CTC) and 0.09–100 μM for oxytetracycline (OTC). The detection limits were 62 nM for TC, 85 nM for CTC and 88 nM for OTC. The Fe–N–C displayed good storage and long-term stability when stored at 4 °C for 30 days. In addition, based on its superparamagnetism, Fe–N–C can be effectively recycled and reused through an external magnetic field, avoiding secondary pollution.
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