MATERIALS CHEMISTRY AND PHYSICS
·
2018
·
IF 2.21
Long Mao,Hui-qing Wu,Yue-jun Liu,Jin Yao,Yong-kang Bai
Inspired by versatile adhesive ability of mussel adhesion proteins, tannic acid-Fe(III) functionalized high aspect ratio layered double hydroxides (LDHs@TA-Fe(III)) was firstly prepared via a facile and fast deposition of one-step assembled TA-Fe(III) coatings on the surface of layered clay. LDHs@TA-Fe(III)/poly (ε-caprolactone) (PCL) nanocomposites were prepared by blending LDH@TA-Fe(III) and pure PCL via solution casting method to obtain homogeneous films. The results of thermal analysis confirm that LDHs@TA-Fe(III) can act as a nucleating agent . It is revealed that the inclusion of LDHs@TA-Fe(III) up to an appropriate level of content resulted in a remarkable enhancement in the mechanical and gas barrier properties . However, excess LDHs@TA-Fe(III) loadings give rise to a decrease in the mechanical properties. With incorporation of only 1 wt % LDHs@TA-Fe(III), a 47% increase in elongation at break and 21% reduction in the oxygen relative permeability are achieved. The reinforcement effect brought by LDHs@TA-Fe(III) is fairly noteworthy at low clay loadings potentially owing to the strong interfacial interactions between the clay and matrix.
✓ 已验证
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2026
·
IF 9.2
Lu Zeng,Xuexia Guo,Jiahao Sun,Wenbin Huang,Huinan Zhao,Lingling Hu,Shuanghong Tian,Chun He
In Fenton-like processes, achieving rapid and efficient redox cycling of metal active centers remains a challenge. This study presents an innovative strategy that harnesses the mechanical energy of water flow to drive the redox cycling of metal active centers. Herein, Fe 3 O 4 /MoS 2 heterojunction with interfacial Mo-S-Fe bridge bonds was constructed via a one-step hydrothermal method. Under the stimulation induced by water-flow mechanical, the piezoelectric effect of MoS 2 generates charge carriers, which are rapidly directed to Fe active sites through the Mo-S-Fe bonds. This process significantly accelerates the Fe(III)/Fe(II) cycle and enhances H 2 O 2 activation, achieving 93.8% removal of sulfamethoxazole (SMX) within 60 min under water flow stimulation. The composite exhibits robust performance across a broad pH range (3.0-10.7) and in the presence of humic acid (HA) and coexisting anions, demonstrating its strong environmental adaptability. Spectroscopic evidence confirmed the formation of Mo-S-Fe bonds at the heterojunction interface. Mechanistic studies further revealed that the structure improves charge separation, promotes rapid electron transfer from MoS 2 to Fe sites, and strengthens H 2 O 2 adsorption, thereby synergistically boosting reactive oxygen species (ROSs) generation and the overall catalytic efficiency. This study proposes an innovative strategy that exploits mechanical forces generated by water flow to drive rapid redox cycling of active metal centers in Fenton-like reactions.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Water Process Engineering
·
2025
·
IF 6.7
Xianxian Sheng,Tianliang Wang,Guilu Zeng,Xiang Zhang,Mudassir Habib,Shuguang Lyu
In the advanced oxidation process (AOPs) induced by sodium percarbonate (SPC), reactive oxygen species (ROS) can be scavenged by a large amount of dissolved Fe(II) released within a short time. To address this issue, a slow-release Fe(II) process is proposed in this study, thereby enhancing the degradation of contaminants. SPC/Fe(III)/amorphous boron (B) and SPC/Fe(III)/citric acid (CA) procedures were employed to remove polycyclic aromatic hydrocarbons (PAHs), with B as the reductant and CA as the chelator. Fluoranthene (FLT) removal in SPC/Fe(III)/B process contributed to HO•, while HO• and O 2 − • were responsible for FLT degradation via SPC/Fe(III)/CA system. SPC/Fe(III)/CA system exhibits more adaptability to intricate water quality circumstances compared to SPC/Fe(III)/B system. The bio-toxicity of FLT and their degradation intermediates was evaluated via the Toxicity Estimation Software Tool (T.E.S.T.), revealing a reduction in oral rat LD50, developmental toxicity, mutagenicity, and bioconcentration factor of the degradation intermediates relative to FLT. Both amorphous B- or CA-assisted SPC/Fe(III) processes were shown to be eco-friendly through luminosity inhibition tests with Vibrio fischeri . Experiments on soil slurry revealed that SPC/Fe(III)/CA system was feasible for the removal of complex PAHs, directing the SPC-induced AOPs process for the remediation of PAHs contaminated soils and groundwater.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2022
·
IF 8.91
Zhixing Xiao,Lizhuang Yang,Chuang Chen,Dan Chen,Xue Zhou
Redox reactions between humic substances and Fe(III) compounds play a critical role in the biogeochemical cycle of pollutants. Most humic substances in soils and sediments are in a solid form (i.e. humin (HM)). In order to assess the contribution of electron shuttling via HM within the electron transfer network in natural environments and to predict environmental fate of pollutants associated with iron oxides , it is necessary to understand the electron transfer processes from HM to the environmentally relevant Fe(III) minerals, and to examine the redox reversibility of HM. The results of this study demonstrated that non-reduced HMs could only donate electrons to dissolved ferric citrate and poorly crystalline ferrihydrite , but reduced HMs could also reduce hematite and magnetite that had high crystallinity . The degree of reduction depended on the difference in redox potential and the crystallinity of the Fe(III) compounds. The electron-accepting capacities of different HMs correlated well with their organic carbon content, and quinones and Fe-bound organic component were important electron-accepting groups in HMs. Furthermore, the redox reversibility experiments demonstrated that HMs could maintain stable electron transfer capacities over three reduction-oxidation cycles, indicating that the HM could be an environmentally sustainable electron shuttle. Our results suggest that (1) HM may play an unrecognized and important role in biogeochemical cycles of pollutants in Fe(III) mineral-rich environments; (2) electron shuttling through HM to ferric citrate and ferrihydrite can occur even in the presence of O 2 ; and (3) HM would be a promising material for environmental remediation.
✓ 已验证
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Guang Yang,Zhiyang Cheng,Huanzhong Bao,Lianbao Zhang,Hongwei Zhang,Hui Jia,Jie Wang
It was important to regulate the formation of Fe-hydroxyl during ferrate (Fe(VI)) oxidation and hydrolysis which was beneficial for interfacial adsorption of natural organic matter (NOM). Based on the influence of weak magnetic field (WMF) on the physical and chemical characteristics of particles in chemistry. This study investigated the effect of WMF on Fe(VI) oxidation and Fe(III) flocculation performance by regulating iron species during hydrolysis, for NOM removal. Results indicated WMF efficiently accelerate the removal of NOM that the reactions rate constants in magnetization system was twice as much as the control group. With the structure and electrochemical analysis, WMF enhanced Hydrogen-bond and caused much polar hydroxyl groups combined with iron ions, further triggered Fe(III) transformed to amorphous Fe-hydroxide and ferrihydrite with large specific surface area and high surface activity which removed the pollutants by adsorption and co-precipitation, instead of crystalloid Fe 2 O 3 and Fe 3 O 4 . In addition, the nucleation aggregation behavior and interaction energy of Fe-(oxy)hydroxide revealed that the lower free energy obtained in magnetization system, could lead to higher nucleation rate, and promoted the aggregation. WMF increased hydrophobicity of Fe-(oxy)hydroxides, further more easily adsorbed with humic acid (HA) and bovine serum albumin (BSA) with lower interaction energies than in control group. The selective removal mechanism of Fe-(oxy)hydroxide hardly to aggregate with pollutants which caused by the difference of electrostatic interaction, was illustrated that electronegativity HA and SA were liable to electrostatically attract with Fe-(oxy)hydroxide and removed while the low electronegativity BSA was difficult to remove which its attraction was weakened.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2020
·
IF 5.774
Fangke Yu,Yi Wang,Hongrui Ma,Minghua Zhou
In this study, we demonstrated that hydrothermal synthesized FeS 2 was highly efficient to catalyze the H 2 O 2 decomposition for diclofenac sodium (DCF) degradation in a wide range of initial pH (3–9) by heterogeneous electro-Fenton (EF) process, and this “Pyrite-EF” showed a better performance for the mineralization of DCF in comparison with the classic EF process. Effect of pyrite content on the hydroxyl radicals generation and iron dissolution produced by the decomposition of hydrogen peroxide (H 2 O 2 ), and applied current density on the degradation kinetics and mineralization efficiency were studied. Moreover, toxicity assessment by means of microtox method showed the solution toxicity was removed after treatment. Experimental results revealed that the enhancement of DCF degradation rate in the Pyrite-EF process was attributed to the molecular oxygen activation induced by more surface bound ferrous ions on FeS 2 , generating superoxide anions to accelerate the Fe(II)/Fe(III) cycle on the FeS 2 surface, which favored the H 2 O 2 decomposition to generate more hydroxyl radicals for the DCF degradation via a heterogeneous EF-like process. These findings could provide some new insights into the molecular oxygen activation induced by FeS 2 and the subsequent heterogeneous Pyrite-EF degradation of organic pollutants from wastewater.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Ji Shu,Kanming Wang,Virender K. Sharma,Xiping Xu,Nasri Nesnas,Hongyu Wang
This paper presents Fe(VI) combined with Ti/Zn layered double hydroxide (Fe(VI)-Ti/Zn LDH) as a composite to degrade organic pollutants (pesticides and pharmaceuticals) under visible light (VL). The Fe(VI)-LDH/VL system was shown to effectively activate Fe(VI) and simultaneously enhance separation and migration of electrons-holes on the Ti/Zn LDH surface. Furthermore, the Fe(III) particles resulting from the Fe(VI) reduction were adsorbed and coordinated onto the LDH surface to form an in-situ heterojunction photocatalyst which narrowed the wide bandgap from 3.08 eV to 1.44 eV of the LDH and achieved further oxidation of pollutants. Detailed kinetic and mechanistic investigations using the pesticide, imidacloprid (IMI), revealed multi-oxidant intermediate species (Fe V /Fe IV , OH, h VB + and O 2 − ) involved in degrading the parent micropollutant and yielding oxidized products. This study also assessed the application of Fe(VI)-Ti/Zn LDH composite to other pesticides and pharmaceuticals (carbaryl (CAB) and metribuzin (MBZ), trimethoprim (TMP) and carbamazepine (CBZ)), and exhibited satisfactory micropollutants removal. The newly reported VL-induced Fe(VI) activation system, based on Fe(VI)-Ti/Zn LDH composite, may be an effective multi-oxidant strategy to oxidize pollutants in water.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2023
·
IF 4.8
Zhi Luo,Yusheng Wu,Dongmiao Qin,Shuo Meng,Chujie Zeng,Biyang Deng
A luminescent reagent, 3,4,9,10-perylenetetracarboxylic acid (PTCA), was linked to a metal–organic framework (MOF) Fe(III)-MIL-88B-NH 2 through an amide reaction to form a [email protected] (III)-MIL-88B-NH 2 complex, and then gold nanoparticles (AuNPs) were grown in situ. Thus, the [email protected] (III)-MIL-88B-NH 2 @Au electrochemiluminescence (ECL) probe was obtained. The MOF of 2-aminoterephthalic acid with large specific surface area, pore sizes, and structures, which served both as the carrier and a co-reaction promoter, promoted the conversion of more S 2 O 8 2- into SO 4 •- , further enhancing the ECL signal of PTCA. An electrochemiluminescence resonance energy transfer (ECL-RET) platform was designed for the ultrasensitive and highly selective detection of cystatin C (CysC). The developed ECL-RET biosensor presented a linear range from 0.01 pg/mL to 100 ng/mL and a detection limit of 2.2 fg/mL (S/N = 3). Moreover, all the results showed that the developed ECL-RET biosensor broadened the application in the fields of biosensing and medical diagnosis.
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 73
·69370-69380
·
IF 3.289
Juncai Zhang,Youning Chen
With chloromethylated polystyrene resin being the base material, a new type of salicylic acid-type chelating resin with high capacity was prepared by grafting glycidyl methacrylate (GMA) on the surface of the resin via surface-initiated atom transfer radical polymerization and followed by the derivatization with 5-aminosalicylic acid. Fourier-transform infrared spectrometry and X-ray photoelectron spectroscopy were used to characterize the surface composition of the resin. It was found that the grafting degree of GMA increased linearly with the extension of ATRP time and GMA concentration. The maximum adsorption capacities of the resin were up to 4.23 mmol g−1 for Fe(III), 4.02 mmol g−1 for Ag(I), 2.36 mmol g−1 for Ni(II) and 1.75 mmol g−1 for Cu(II) at pH 4.0, respectively. The adsorption kinetics of the four metal ions conform to the model of pseudo second-order kinetics, and adsorption equilibria were better characterized by the Langmuir equation. Thermodynamic parameters were calculated to understand the nature of the adsorption process. The resin possesses excellent desorption rate and reusability. All these results indicate that the resin could be potentially applied to the efficient removal of heavy metal ions from waste water.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Huiping Zeng,Jiahao Wu,Yong Chen,Jiongru Liang,Simin Li,Su Han,Dong Li,Jie Zhang
Developing sustainable, low‐carbon technologies to remove antibiotics from wastewater is vital to reduce ecological and health risks and meet dual carbon targets of peaking and neutrality. In this work, a surface-modified Platanus leaf powder (PLP) adsorbent was fabricated via metal-phenolic network (MPN) assembly. At pH 8, Fe(III)-tannic acid (TA) coordinated MPNs self-assembled to generate a supramolecular nanocoating on PLP, yielding the Fe(III)-Tannic networks on PLP (FTN@PLP) composite. Batch adsorption studies demonstrated an impressive maximum tetracycline (TC) uptake of 118.9 mg/g. The removal performance was systematically investigated by varying the Fe/TA ratio, pH, adsorbent dosage, initial concentration, coexisting ions, and humic acid. Adsorption kinetics, isotherm modeling and characterization study revealed that TC uptake was driven by a cooperative mechanism involving electrostatic attraction, Fe 3+ complexation, and hydrogen bonding. Additionally, FTN@PLP effectively removed representative dye pollutants. When evaluated for tetracycline (TC) removal over five successive adsorption–desorption cycles, the adsorbent maintained regeneration efficiencies exceeding 80 %. Life cycle assessment (LCA) indicated that the preparation route has a low environmental impact; leveraging plant polyphenols and biomass waste provides a promising pathway for carbon-reduction and biomass valorization. This novel strategy integrates material innovation with stewardship, providing a solution for wastewater treatment under low-carbon guidelines.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Jiangnan Xu,Xiu Luo,Weiwei Su,Guorong Jia,Huawei Cai,Danni Li,Rou Li,Xiangdong Wang,Yefa Yang,Tao Wang,Changjing Zuo
Transarterial radioembolization (TARE) is a primary palliative treatment for advanced liver cancer. Nonetheless, its therapeutic efficacy is frequently hindered by resistance to tumor cell apoptosis induced by inter-radiotherapy. Induction of multiple cell death modalities provides a potential solution to this challenge. Ferroptosis, a distinct form of cell death from apoptosis, is dependent on the intracellular Fe2+-mediated Fenton reaction for the production of hydroxyl radicals (·OH) and is gaining recognition as a promising approach for cancer treatment. In this study, we synthesized a therapeutic radionuclide iodine-131 (131I)-based TARE agent by combining 131I-labeled iron-based MIL-88B(Fe) nanoparticles (NPs) (abbreviated as 131I-MIL-88B(Fe)) with Lipiodol to achieve a combined apoptosis–ferroptosis tumor therapy. Specifically, a mixture of Lipiodol and 131I-MIL-88B(Fe) NPs was injected into the liver tumors through the hepatic artery. Lipiodol blocks the arterial blood supply of the tumor, causing tumor tissue necrosis, whereas 131I inter-radiotherapy damages deoxyribonucleic acid (DNA) through direct action or indirectly via the production of ·OH through H2O radiolysis, leading to tumor cell apoptosis. Importantly, hydrated electrons (eaq–), a byproduct of H2O radiolysis, promoted the conversion of Fe3+ to Fe2+ in MIL-88B(Fe) NPs, enhancing the efficacy of the Fenton reaction and triggering ferroptosis. In vitro experiments demonstrated that compared to 131I alone, 131I-MIL-88B(Fe) NPs significantly enhanced ferroptosis-mediated tumor cell death due to 131I-induced Fe2+ production, which increased catalytic activity in the Fenton reaction. In a rat model bearing orthotopic N1S1 liver tumors, TARE with Lipiodol and 131I-MIL-88B(Fe) NPs induced tumor cell necrosis, apoptosis, and ferroptosis, resulting in improved therapeutic outcomes. This study leverages eaq– to facilitate Fe3+/Fe2+ conversion for efficient ferroptosis, turning waste into a valuable resource. This demonstrated the innovative integration of multiple treatment strategies to augment the efficacy of TARE in liver cancer therapy.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2025
·
IF 11.3
Yiming Sun,Chenying Zhou,Shuang Meng,Shuang Zhong,Yang Liu,Chuanshu He,Peng Zhou,Bo Lai
Heteroatom doping has been applied as an excellent method for mediating the catalytic reactivity of carbon materials. To overcome the inherent defect of slow Fe(III) reduction in Fenton chemistry, this work finds that boron-doped carbon materials demonstrate high cocatalytic activity in boosting Fenton oxidation. During Fenton chain reactions catalyzed by boron-doped reduced graphene oxide (B-rGO, the typical boron-doped carbon material), highly reactive near-free Fe(III) formed on the B-rGO surface can dramatically promote H2O2 mediated Fe(III) reduction, which strongly accelerates the rate-determining reaction in Fenton chain reactions to generate hydroxyl radicals. The results of DFT calculations, electrochemical analysis, characterizations (XAFS, in situ Raman, and HAADF-STEM), and pH-dependent performance reveal that doped boron atoms can modulate the electron-deficient iron atom of FeOH2+ by stretching the Fe–O bond (from 163.6 to 179.2 pm), which forms near-free Fe(III) on the B-rGO surface with higher oxidation capability than free Fe(III), and the Fe(III) oxidation potential is positively and linearly related to the boron content of B-rGO (R2 = 0.96). Moreover, near-free Fe(III) can dramatically oxidize H2O2 (a green electron donor) to accelerate Fe(II) regeneration, thereby promoting Fenton chain reactions for long-lasting Fenton oxidation. These discoveries afford a strategy for designing green and sustainable cocatalysts to overcome the intrinsic weaknesses of classical Fenton chemistry.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）