INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Naeem Akram,Wenlan Ma,Shehla Riaz,Jia Guo,Ali Ahmad,Jide Wang
In this study, Ni-Fe-based Prussian Blue Analogues (Ni-Fe PBA) served as precursors, giving rise to a NiO/Fe 3 O 4 -based bimetallic catalyst that underwent comprehensive examination for both chemocatalytic water oxidation and photocatalytic degradation of organic dyes. The morphologies and chemical compositions of the precursor and resultant bimetallic catalysts were thoroughly characterized using XRD, SEM, XPS, mapping, and FTIR techniques. The results indicated that the catalytically active center is the NiO/Fe 3 O 4 -based bimetallic nanocomposite. The in-situ-synthesized bimetallic catalyst demonstrated remarkable catalytic oxidation activity when evaluated with Sodium Persulfate (PS) as an oxidant. Oxygen evolution results revealed an impressive catalytic water oxidation activity, with an O 2 production rate of approximately 1594.3 µmol·g −1 ·h −1 . Moreover, the NiO/Fe 3 O 4 catalyst was utilized as a heterogeneous photocatalyst to activate photosensitizer (PS) for the two azo dye’s deterioration caused by the exposure to visible light. Both organic dyes were photocatalytically degraded with great efficiency when Fe 3 O 4 and NiO were combined because they increased the catalyst’s capacity to absorb light. Electron Spin Resonance (ESR) and radical trapping studies revealed that sulfate (SO4· - ) and hydroxyl (OH·) radicals played pivotal roles. The degradation mechanism and pathway for Rhodamine B (RhB) were also elucidated. The exceptional recyclability and stability of the NiO/Fe 3 O 4 catalyst make it particularly promising for potential applications in water treatment, addressing challenges related to energy sustainability and environmental toxicity.
✓ 已验证
产品关联
DOI
高影响因子
WATER RESEARCH
·
2025
·
IF 12.4
Xian Zhao,Jia-Yi Wang,Yu-Qian Wang,Chen-Hao Cui,Xin Yan,Wei Dai,An-Ran Zhang,Zhen-Ying Zhang,Ding-Ding Tang,Yan Zhou,Qiong Qin,Ji-Wei Pang,Lu-Yan Zhang,Nan-Qi Ren,Jie Ding,Shan-Shan Yang
s Green rust (GR), a reductive iron-based mineral pivotal in soil and groundwater remediation, remains unexplored for wastewater treatment. This study reveals that high-pH-Fe(II) coagulation enables in-situ generation of stabilized GR, thereby enhancing the coagulation efficiency (> 90 % removal for diverse dyes). The formation mechanism includes three sequential stages: Initially, alkaline conditions facilitate abundant Fe(OH) 2 ; Subsequently, partial oxidation of Fe(II) by oxidants produces anoxic zones, where Fe(II)/Fe(III) co-precipitation initiates GR crystallization; Simultaneously, multivalent anions intercalate into GR interlayers, further enhancing GR stability through strong electrostatic interactions. GR-enhanced-Fe(II) coagulation demonstrates dual dyes removal mechanisms: direct reductive degradation of electrophilic moieties (e.g., azo bond) and adsorption-coprecipitation of macromolecules. Based on the mechanism insights, it is found that GR-enhanced-Fe(II) coagulation achieves unparalleled removal of both anionic and cationic dyes (nearly 100 % decolorization for 50 mg/L dye solutions) under anoxic conditions. HPLC-MS and DFT confirm GR-driven reductive cleavage of Reactive Red 2 into low-molecular-weight byproducts. Pilot and full-scale trials at a dyeing wastewater treatment plant concluded that GR-enhanced-Fe(II) coagulation achieves 53.5 % COD removal, outperforming conventional Fe(II) processes (46.5 %) under actual hydraulic and pollutant load fluctuations. This work expands coagulation theory and offers a cost-effective strategy for wastewater treatment, adaptable to diverse effluents while retaining operational simplicity.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Yiqiao Zhang,Yanshi Zhang,Huan Cheng,Chunhua Xu
Slow iron cycling is an important factor limiting the reactivity of zero-valent iron (ZVI). Developing novel strategies to facilitate iron cycling is vital for the ZVI practical application. This study reports a novel interfacial slow-release reduction strategy for synthesizing L-ZVI with excellent performance by adding L-ascorbic acid 2-phosphate sesquimagnesium salt hydrate (AAPS). Experiments revealed that AAPS slowly released ascorbic acid via acid-catalyzed hydrolysis, thereby using reduction to promote Fe(III)/Fe(II) cycling, a process that regulates iron cycling while preventing low utilization by direct adding reductants. The enhanced content of Fe(II) and self-corrosion of L-ZVI facilitated the release of Fe(II) into the solution. Electrochemical experimental and comparisons of hydrogen production demonstrated that L-ZVI exhibited exceptional electron transfer and selectivity capacity. The strategy alters the electronic structure of L-ZVI, lowers work function, and shifts the band center upward. Cr (VI) was chosen as the model contaminant to investigate the reactivity of L-ZVI. L-ZVI can remove Cr (VI) within 7 min completely, exhibiting a reaction rate constant ( k obs ) of 0.6809 min⁻¹ , which was 154.75-fold higher than that of ZVI (0.0044 min⁻¹) and significantly surpassing the performance of other reported water treatment materials. This article presents a novel strategy for developing efficient iron-based materials.
✓ 已验证
DOI
PubMed
高影响因子
International Journal of Biological Sciences
·
2025
·Vol. 21
·期 11
·4872-4894
·
IF 10
Chen Yuxing,Tao Yong,Huang Qiu,Xu Jingtao,Wang Zhenxin,Zhang Ye,Fu Guangxu,Tan Fuqiang,Feng Keyi,Ou Yunsheng
Osteosarcoma remains a challenging malignancy with poor prognosis, particularly in metastatic cases. This study investigates the therapeutic potential and molecular mechanisms of the Hinokitiol-iron complex (Fe(hino)3) against osteosarcoma. Fe(hino)3 induced dose-dependent cell death in osteosarcoma cell lines (HOS, 143b, and K7M2) through multiple pathways. At moderate doses, Fe(hino)3 triggered ferroptosis by disrupting mitochondrial function, enhancing ROS generation and lipid peroxidation, downregulating GSS and GPX4, and upregulating HO1 and Ferritin expression. At higher doses, Fe(hino)3 activated the NLRC4/Caspase-1/GSDMD pathway, leading to pyroptosis and the release of inflammatory factors. Mechanistically, Fe(hino)3 acted as a dual-mode cell death inducer through iron overload-mediated ferroptosis and NLRC4-dependent pyroptosis while modifying the immunosuppressive tumor microenvironment. In actual clinical application, Fe(hino)3 might be used as an alternative to chemotherapy or other targeted therapies for advanced osteosarcoma at a relatively low dose to improve biosafety and reduce side effects. However, when considering it in combination with immunotherapy for advanced osteosarcoma, a relatively safe high dose is more appropriate due to the pyroptosis-mediated inflammatory response but it still needs to consider the biosafety of combination therapy. These findings provide new insights into the development of Fe(hino)3 dose-dependent therapeutic strategies for advanced osteosarcoma treatment.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
WATER RESEARCH
·
2025
·
IF 12.4
Cong Zhang,Zhipeng Zhang,Shuang Zhang,Yifeng Chen,Dunjie Li,Yongmei Li
Anaerobic co-digestion of sulfur-containing organic wastes with waste-activated sludge containing iron–phosphorus compounds (FePs) was recently suggested as an environment-friendly strategy to promote phosphate release, energy recovery, and hydrogen sulfide (H 2 S) control. Nevertheless, the mechanistic coupling between FePs speciation and the concurrent transformation of carbon, sulfur, iron, and phosphorus within this system remains to be fully elucidated. To address this knowledge gap, methionine, a typical hydrolysis product of sulfur-containing organics, and five FePs prevalent in sludge (ferric-phosphate tetrahydrate (FePO 4 ⋅4H 2 O), ferric-phosphate dihydrate (FePO 4 ⋅2H 2 O), vivianite (Fe 3 (PO 4 ) 2 ·8H 2 O), phosphate coprecipitated with Fe(III) (COP-P), and phosphate adsorption on hydrous ferric oxide (HFO-P)) were selected to elucidate C-S-Fe-P transformations in this study. The results showed that the H 2 S and methyl mercaptan productions decreased by >96% and >99%, respectively, while the methane production rate increased by 51.60–103.9% in the presence of FePs. The reaction between FePs and sulfide promoted the transformation of gaseous H 2 S and aqueous S 2− to solid sulfur species (elemental sulfur and iron sulfide precipitates), while simultaneously promoting the release of PO 4 3− from FePs. The formation of Fe(II) species derived from both abiotic sulfide-driven reduction and microbial-mediated iron reduction processes. The reduction rates of FePO 4 ⋅2H 2 O and FePO 4 ⋅4H 2 O were higher than those of COP-P and HFO-P, owing to their higher thermodynamic favorability. A negative correlation was observed between the Fe/P molar ratio and PO 4 3− release efficiency. FePO 4 (FePO 4 ⋅2H 2 O and FePO 4 ⋅4H 2 O) with the lowest Fe/P molar ratio achieved the highest P release efficiency (89.83–91.01%). Metagenomics analysis revealed that the SELENBP1 gene related to the degradation of methanethiol to sulfide was upregulated by 21.12–51.72% in the presence of FePs, and the genes involved in propionate metabolism, methylotrophic, and hydrogenotrophic methanogenesis were up-regulated concurrently. This study provides an in-depth understanding of C-S-Fe-P interactions and transformations during the anaerobic co-digestion of sulfur-containing organic wastes with FePs-containing sludge, helping to enhance methane production and the recovery of phosphorus and sulfur.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Horizons
·
2025
·
IF 10.7
Qianwen Chen,Yanbing Huang,Wanshun Duan,Qijia Su,Yilong Wang,Fuxi Bao,Junjun Zhang,Wen Guo
The kinetics of the oxygen evolution reaction (OER) of Co3O4 in alkaline media can be promoted by a bimetallic co-doping strategy. Herein, we synthesize a Zn/Fe co-doped Co3O4 nanostructure (ZnFe-Co3O4) to enhance the oxygen evolution reaction performance in the alkaline media. The ZnFe-Co3O4 electrocatalyst exhibits a low overpotentials of 255 mV at 10 mA cm-2, a Tafel slope of 54 mV dec-1 in 1.0 M KOH and excellent long-term durability up to 120 hours at 100 mA cm−2. The X-ray photoelectron spectroscopy (XPS) reveals that Zn occupies octahedral Co3+ sites and Fe occupies tetrahedral Co2+ sites in the Co3O4 lattice. The experimental results together with theory calculations collectively demonstrate that ZnFe-Co3O4 follows the lattice oxygen mechanism (LOM) during OER process. In situ Raman spectroscopy shows that the truly reactive FeOOH/CoOOH species are formed through surface reconstruction during OER. Furthermore, it is found that the synergistic effects of Zn and Fe doping, which stabilize the Co3O4 structure and promote the generation of active (oxy)hydroxide species, are identified as key factors in the enhanced electrocatalytic performance. This work offers a novel concept for enhancing the electrocatalytic activity of electrocatalysts through doping strategies and provides guidance for the rational design of ideal electrocatalyst.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
·
2025
·
IF 7.7
Hongyang Mao,Shulei Li,Lihui Gao,Si Shen,Yanhong Liu,Keyi Xu
Coal gasification fine slag (CGFS), a typical coal-based solid waste, poses significant environmental challenges with an annual output exceeding 50 million tons in China. The complex distribution of carbon and ash components necessitates the development of a material that can effectively harness both carbon and ash for comprehensive utilization. While layered double hydroxides (LDHs) exhibit catalytic potential, their performance is often limited by severe particle aggregation. Herein, we engineered a robust carbon-anchored Fe-Al-LDH composite (CGFS-LDH) through hydrothermal co-precipitation, demonstrating exceptional efficacy in H 2 O 2 activation for phenol degradation. Remarkably, CGFS-LDH achieved 100 % removal of 200 mg L −1 phenol within 60 min. Advanced characterization (XPS, XRD, EPR, LC-MS, and electrochemical analysis) revealed that CGFS serves dual roles: as a structural scaffold preventing LDH aggregation and as an electron shuttle promoting Fe 2+ /Fe 3+ redox cycling. Although trace amounts of Fe (0.2 wt%) and Al (0.3 wt%) leached due to dynamic precipitation-dissolution equilibrium, the catalyst maintained outstanding stability over multiple cycles, with negligible activity loss. This work introduces an effective strategy for the comprehensive utilization and high-value transformation of CGFS, while also providing novel insights into the development of highly efficient and stable porous nanocomposites catalysts.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Yuting Zhang,Jiaqi Wang,Xuesong Zhang,Wenxiu Qin,Youbin Si
Preliminary studies have demonstrated that light can facilitate the biogeochemical cycling of iron, influencing the valence state of heavy metals, solidifying them, and ultimately achieving detoxification effects. However, few studies have focused on the oxidation of Sb(III) in different iron minerals and the differences in mechanisms. This study explored the photooxidation of Sb(III) in the presence of various iron minerals (hematite, pyrite and goethite), focusing on how different iron minerals influenced the oxidation process and the mechanisms involved. Among the minerals tested, pyrite exhibited exceptional photooxidation performance, achieving an Sb(III) oxidation efficiency of 67.03% after 300 minutes. This superior photooxidation activity correlated with pyrite’s significant Fe(II) yield (11.70 μg/L). Our study demonstrated that light irradiation enhanced Sb(III) oxidation through three iron-based minerals. Light exposure drove the generation of Fe(II) within these minerals, initiating Fe(II)/Fe(III) redox cycling. This process promoted reactive oxygen species (ROS) generation, including hydroxyl radicals (•OH), superoxide radicals (O 2 •− ) and hydrogen peroxide (H 2 O 2 ), which collectively mediated Sb(III) oxidation to the less toxic Sb(V). In the photooxidation of Sb(III), •OH played a critical role in reactions involving hematite and pyrite, while O 2 •− dominated in goethite and pyrite systems. H 2 O 2 was found to have a pivotal role across all three iron mineral systems. Additionally, photogenerated holes ( h + ) significantly enhanced Sb(III) oxidation in the pyrite system. This research highlighted the impact of light on the biogeochemical cycling of iron and its role in facilitating the oxidation of Sb(III) through reactions that involve photo-generated electrons and free radicals.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Chenchen Wu,Litong Chen,Yuling Yang,Xuxuan Yang,Zhixiang Zeng,Yong Zhou,Lei Tang,Lijing Zhu
Solar-driven interfacial evaporation is a promising way to produce desalinated freshwater. However, the evaporation flux of the evaporators is still insufficient to meet practical demands. In this paper, a kind of highly efficient evaporator with vertical channels based on a metal–organic framework (MOF) is designed and prepared. First, 3D polyvinyl alcohol-agar (PVA-Agar) scaffolds were fabricated via the ice template method at a temperature of −18 ℃. They possess hierarchical pores from the bottom surface to the top surface, improving upward water-pumping and inhibiting salt accumulation. In addition, the PVA-Agar scaffolds were further in situ decorated by Fe-MIL88A microrods with a length of 1.8 ± 0.2 μm and a diameter of 401.0 ± 27.5 nm, forming the PVA-Agar/MIL88A evaporators. It can be found that the loading yield of MIL88A and the agar content strongly affect the upward water-pumping performance, hydrogen bonding, water vaporization enthalpy, and absorptivity of the evaporators. The optimum PVA-Agar/MIL88A evaporator with a MIL88A loading yield of 17.4 wt% and an agar content of 70.0 wt% has an ultrahigh pure water evaporation flux of 5.0 kg m -2 h −1 and 4.2 kg m -2 h −1 in 3.5 wt% NaCl under sun illumination at 1000 W m −2 . Moreover, the outdoor solar-driven desalination tests suggest that the PVA-Agar/MIL88A evaporator exhibits good solar-driven desalination performances and stability. PVA-Agar/MIL88A evaporators will greatly promote the development of seawater desalination because of their high evaporation flux and good salt resistance.
✓ 已验证
产品关联
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2025
·
IF 5.1
Liu Ouyang,Huihu Wang,Lizhong Duan,Jingle Zhang,Shenghao Jiang,Yu Xiong,Chenhuinan Wei,Xing Xiang,Yun Zhao,Qianyu Wang
Tetracycline (TC), a widely detected aquatic pollutant, poses significant ecological risks, necessitating the development of effective remediation strategies. Photocatalytic degradation, which converts TC into harmless CO 2 and H 2 O, offers a promising eco-friendly solution. This study successfully synthesized a novel 2D/3D g-C 3 N 5 /BiVO 4 (N-CN/BiVO 4 ) S-scheme heterojunction via a hydrothermal method. The optimized 5 % N-CN/BiVO 4 exhibited exceptional performance in activating the Fe 2+ /PMS system under visible light, achieving a 96.8 % TC removal efficiency with an apparent rate constant 4.4 times higher than that of BiVO 4 . Mechanistic studies, including ultraviolet photoelectron spectroscopy (UPS) and valence band X-ray photoelectron spectroscopy (VB-XPS), confirmed the S-scheme interfacial charge transfer pathway. Furthermore, radical quenching experiments revealed that the enhanced photocatalytic activity originated from the synergistic contribution of multiple reactive species ( OH, SO 4 − , O 2 − , h + , and 1 O 2 ), validating both the efficient activation of Fe 2+ /PMS and the proposed S-scheme charge transfer mechanism. This work presents an innovative approach for high-performance pollutant degradation by coupling an S-scheme heterojunction with the Fe 2+ /PMS activation system.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Nan Li,Haibo Liu,Bin Yang,Bo Xie,Yangtao Wu,Lingjun Bu,Shiqing Zhou
This study establishes a manganese-activated ferrate (Mn(II)/Fe(VI)) process for autonomous Microcystis aeruginosa removal, addressing the critical challenge of additive dependency and secondary pollution in conventional algal control strategies. System performance was critically governed by Mn/Fe stoichiometric ratios and total oxidant dosages, with near-complete algal elimination (>98 %) achieved at Mn/Fe = 1:1 (≥200 μM total dosage) while maintaining cell integrity. TOC analysis revealed dosage-dependent control over cellular lysis and intracellular organic matter (IOM) releasing. Spectroscopic characterization demonstrated process efficacy in degrading dissolved organics through decreased UV 254 absorbance (unsaturation reduction), declining SUVA (aromaticity loss), and elevated E2/E3 ratios (molecular weight reduction). Comparative analyses identified dissolved organic carbon as a more sensitive cellular stress indicator than K + release, attributed to MnO 2 adsorptive sequestration of released intracellular constituents. Mechanistic investigations revealed dual role of Mn(II) that rapid surface accumulation provided oxidative protection, while subsequent Fe(VI)-driven MnO x formation enabled floc growth through particle bridging. Water matrix effects followed valence-specific modulation, where divalent cations (Ca 2+ /Mg 2+ ) enhanced removal via charge screening, and excessive monovalent ions (Na + /NH 4 + ) impaired efficiency through ionic strength interference. This work pioneers a green oxidation-coagulation synergy that eliminates supplemental additives, offering a sustainable paradigm for mitigating cell rupture and IOM release in algae-laden water treatment.
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Yu Shi,Guanhua Ren,Jiajie He,Wei Yang,Jingjing Bao,Licheng Sun,Zhengyu Mo,Min Du
With the growing global demand for sustainable energy solutions, there is increasing interest in the conversion of low-grade heat into useful electrical energy. Thermoelectrochemical cells (TECs) are a promising technology for low-grade heat harvesting. However, sluggish reaction kinetics limit the power generation and efficiency of the TECs. In this study, we propose a Fe–N–C catalyst in situ grown on three-dimensional graphite felt as a self-supporting electrode for TECs. The graphite felt substrate provides a multidimensional structure to facilitate mass transport, while the Fe–N–C catalyst enhances electrode activity for redox reactions. The physicochemical properties and electrochemical performance of the electrode are characterized. The results demonstrate that the optimized electrode achieves a maximum power density of 1938 mW/m2 and a Carnot-relative efficiency of 2.29%, representing 11-fold and 12-fold improvements over graphite felt, respectively. These metrics surpass recent benchmarks in the field of TEC research. Furthermore, the electrode maintains a Carnot-relative efficiency of 2.0% in solar-driven TEC operation, demonstrating feasibility in photothermal and thermoelectrochemical conversion. Modeling analysis reveals that ion transport dominates heat and mass transfer processes, critically influencing power generation and stability, thereby highlighting the need for future optimization of ion transport pathways. This work validates the feasibility of in situ-grown Fe–N–C catalysts on graphite felt as high-performance TEC electrodes, offering a strategic framework for advancing waste heat recovery systems through rational electrode design and transport engineering.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）