JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Huan Yi,Dengsheng Ma,Xiuqin Huo,Ling Li,Mingming Zhang,Xuerong Zhou,Fuhang Xu,Huchuan Yan,Guangming Zeng,Cui Lai
Tetracycline (TC) antibiotics have been widely used over the past decades, and their massive discharge led to serious water pollution. Photo-Fenton process has gained ever-increasing attention for its excellent oxidizing ability and friendly solar energy utilization ability in TC polluted water treatment. This work introduced coordinative Fe into oxygen-enriched graphite carbon nitride (OCN) to form FeOCN composites for efficient photo-Fenton process. Hemin was chosen as the source to provide the source of coordinative Fe-N x groups. The degradation efficiency of TC reached 82.1 % within 40 min of irradiation, and remained 76.9 % after five runs of reaction. The degradation intermediates of TC were detected and the possible degradation pathways were gained. It was found that h + , OH, and O 2 − played major roles in TC degradation. Notably, the photo-Fenton performance of FeOCN was stable in highly saline water or strong acid/base environment (pH 3.0–9.0). Besides, H 2 O 2 can be generated in-situ in this photo-Fenton process, which is favorable for practical application. It can be anticipated that the coordinative FeOCN composites will promote the application of photo-Fenton oxidation process in TC polluted water treatment.
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DOI
高影响因子
WATER RESEARCH
·
2022
·
IF 13.4
Zhengyuan Zhou,Jingyao Huang,Guilu Zeng,Rumin Yang,Zhiqiang Xu,Zhikang Zhou,Shuguang Lyu
S(IV)-based advanced oxidation process has been applied for contaminants remediation. However, as a traditional source of sulfite (SO 3 2− ), Na 2 SO 3 is extremely soluble in water, resulting in a high concentration of SO 3 2− to quench the generated reactive oxygen species (ROS). In this work, CaSO 3 was introduced instead of Na 2 SO 3 for its slow-released SO 3 2− ability and Fe(III)/CaSO 3 system was established for the removal of trichloroethylene (TCE) and other organic contaminants. The degradation efficiency of TCE reached 94.0% and TCE could be completely dechlorinated and mineralized, while the removal of other contaminants was all over 85.0% at the optimal tested conditions. Through EPR detection, ROS scavenging and probe tests, and quantification of ROS amounts, it was concluded that the dominant ROS in Fe(III)/CaSO 3 system were SO 4 − · and 1 O 2 , of which the transformation mechanism of SO 4 − · to 1 O 2 was revealed and demonstrated comprehensively. The synergistic contaminants degradation performance in different sulfur-iron-containing systems and in the presence of oxidants was evaluated. The effects of various solution conditions were assessed and Fe(III)/CaSO 3 system was of higher resistance on complex solution matrixes, suggesting the broad-spectrum and application perspective for the remediation of complex contaminants in actual water.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2022
·
IF 4.326
Jinshuo Qiao,Xiangjun Chen,Chengyi Ai,Zhenhua Wang,Wang Sun,Kening Sun,Chunming Xu
Direct carbon solid oxide fuel cells (DC-SOFCs), which can efficiently convert chemical energy of carbonaceous fuels into electricity, have recently gained much research attention as they offer an effective way to address future economic and environmental challenges. Herein, B-site Ti-substituted (PrBa)0.95Fe2–xTixO6−δ (PBFTx, x = 0–0.3) materials are synthesized via a sol–gel combustion method and evaluated as anode materials for DC-SOFCs. Ti doping enhances the phase structure stability of the material under a reducing atmosphere. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy analyses demonstrate the exsolution of metallic Fe nanoparticles on the surface of the PBFTx perovskite lattice after the materials are treated under a reducing atmosphere, which can improve the catalytic performance of DC-SOFC anode. Among the Ti-doped samples (x = 0.1–0.3), PBFT0.2 shows the largest adsorption capacity for CO and the highest electrical conductivity in air. Using pure nano-activated carbon as a fuel, the single cell supported by La0.9Sr0.1Ga0.8Mg0.2O3 electrolyte with PBFT0.2 as an anode achieves the maximum power densities of 527, 281, and 146 mW·cm–2 at 800, 750, and 700 °C, respectively. The above excellent performance of PBFT0.2 indicates that it has great potential for application in DC-SOFC anode.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2022
·
IF 4.598
Hui Shu,Sijia Peng,Tingrun Lai,Xiuxiu Cui,Jie Ren,Ting Chen,Xuechun Xiao,Yude Wang
The non-enzymatic glucose electrochemical sensors have great significance in the prevention and diagnosis of diabetes. In this work, Fe-CdIn 2 O 4 was grown in situ on the nickel foam with the one step non-aqueous sol-gel method. The nickel foam modified by Fe-CdIn 2 O 4 was directly used to detect glucose. The high specific surface area of the nickel foam enhances the contact surface with glucose, and effectively promotes the transmission of electrons. The 30% Fe-CdIn 2 O 4 had a good electrochemical performance for the detection of glucose when 30% Fe was combined with CdIn 2 O 4 . XRD showed that the 30% Fe-CdIn 2 O 4 had better crystallinity. SEM, SEM-Mapping, and TEM showed that the 30% Fe-CdIn 2 O 4 particles grew evenly and exposed abundant active sites. The detection results showed that the 30% Fe-CdIn 2 O 4 had an excellent response to glucose. The linear detection range was wide (0.01–1 mM), the limit detection was low (1.68 μM), the response time was rapid (2.65 s), as well as satisfactory stability, excellent selectivity, and great sensitivity (8992 μA·mM −1· cm −2 ). Meanwhile, based 30% Fe-CdIn 2 O 4 non-enzymatic electrochemical sensor was used to detect glucose in real human serum, and its detection performance was excellent. This study has practical application value in the detection of glucose in real human serum.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Leran Liu,Yijie Zhang,Jinwei Wang,Rui Yao,Yun Wu,Qiang Zhao,Jinping Li,Guang Liu
Industrial electrolysis of water is one of the effective strategies for green hydrogen production in the future. Nevertheless, the large-scale applications of water electrolysis are still intractable issues hindered by the high overpotentials and inferior reaction kinetics on the anode. Herein, a facile one-step hydrothermal method was applied to in situ growth the Fe and V co-doped Ni 3 S 2 electrocatalyst on nickel foam substrate (Fe, V–Ni 3 S 2 /NF). In 1 M KOH electrolyte, the as-prepared Fe, V–Ni 3 S 2 /NF electrode exhibited an improved water oxidation activity with ultralow overpotentials of 253 and 370 mV to realize large current densities of 100 and 1000 mA/cm 2 , respectively. More importantly, the Fe, V–Ni 3 S 2 /NF electrode existed an activation process during 100 h chronopotentiometry testing period. Detailed characterizations revealed that elements of V and S in the electrocatalyst were oxidized and dissolved into the electrolyte, making the electrocatalyst undergo surface reconstruction and resulting in a faster kinetic reaction rate, thus leading to enhanced oxygen evolution reaction activities. Collectively, the resultant Fe, V–Ni 3 S 2 /NF in this work provides new cogitation towards design and synthesis of low-cost electrocatalyst with large current densities for water oxidation.
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高影响因子
SOLID STATE SCIENCES
·
2023
·
IF 3.5
Ningxia Li,Qi Luo,Meiyan Cui,Zhiying Zhao,Zhangzhen He
New fluorophosphate compounds H A 5 M 6 (OH) 4 F 4 (HPO 4 ) 8 ( A = K, Rb; M = Fe, Ga) were synthesized by a fluorine-rich hydrothermal method . These compounds crystallize in the monoclinic system with a P2 1 /n space group, exhibiting an open framework structure built by [PO 3 (OH)] groups, [MO 4 (OH)F], and [MO 4 F 2 ] octahedra, where ten-membered-ring channels, eight-membered-ring channels, six-membered-ring channels, and the linear M 3+ trimers are seen. The characterizations were carried out by powder XRD , EDS , FT-IR spectra, and magnetic measurements. The results confirmed that H A 5 Fe 6 (OH) 4 F 4 (HPO 4 ) 8 ( A = K, Rb) show a quite similar magnetic behavior, possessing an antiferromagnetic ordering at 14.7 K and 15.6 K, respectively. The changes of the magnetic entropy for such antiferromagnetic orderings can be estimated as ∼10.7 J mol −1 K −1 and ∼13.4 J mol −1 K −1 .
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高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Ruirui Yun,Feiyang Zhan,Na Li,Beibei Zhang,Wanjiao Ma,Lirui Hong,Tian Sheng,Liting Du,Baishu Zheng,Shoujie Liu
In the area of catalysis, selective reduction of nitro compounds to amino compounds is a colossal challenge due to the existence of competitive reducible functional groups. Herein, an Fe-based catalyst FeSAs/Fe2O3ACs/N-doped polyhedral carbon (NPC) has been designed and synthesized. As we expected, compared with FeSAs and FeNPs, FeSAs/Fe2O3ACs/NPC shows excellent catalytic performance (turnover frequency up to 1923 h–1, calculated with nitrobenzene), chemoselectivity, and tolerance during the hydrogenation reaction of nitro compounds under room temperature because of the synergistic effects between FeSAs and Fe2O3ACs. The theoretical calculations show that FeSAs prefers to undergo hydrazine decomposition to generate hydrogen and the Fe2O3ACs surface is more active toward the nitrobenzene reduction to aniline.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2017
·
IF 6.216
Zimo Lou,Zhen Cao,Jiang Xu,Xiaoxin Zhou,Jin Zhu,Xue Liu,Shams Ali Baig,Junliang Zhou,Xinhua Xu
In this study, reduced graphene oxide (RGO) and different stabilizers (hexadecyltrimethylammonium bromide, starch, and carboxymethyl cellulose) were applied to simultaneously support and stabilize Fe-Mn binary oxide (FeMnO x ) nanohybrids, and enhanced removal of As(III)/(V) from water was achieved. TEM images shows that the aggregation of FeMnO x on RGO was effectively inhibited after the starch stabilization, meanwhile, the loading of FeMnO x on RGO was also increased. The adsorption capacity of As(III) and As(V) on starch-FeMnO x /RGO via Langmuir isotherm model was 78.74 mg g −1 and 55.56 mg g −1 , respectively, which was 1.99 and 2.39 times higher than bare FeMnO x . The adsorption kinetics was well fitted by the pseudo-second-order model. The effects of initial pH and coexisted anions were investigated. Over 90% of As(III) and As(V) could be removed by starch-FeMnO x /RGO during the five consecutive adsorption-desorption cycles. The results revealed the potential of the RGO supported and starch stabilized FeMnO x as an efficient adsorbent for arsenic removal from water.
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高影响因子
Catalysis Science & Technology
·
2021
·Vol. 11
·期 8
·2864-2872
·
IF 6.119
Xiaoli Li,Yuan Tang,Yue Jiang,Manman Mu,Xiaohong Yin
A series of composites composed of Bi4O5Br2 and Fe-MIL were successfully fabricated for mimicking sunlight-driven photocatalytic reduction of CO2. Herein, Bi4O5Br2, as a modulator of solid acids, could turn NH2-MIL-101(Fe) into NH2-MIL-88B(Fe) completely at 0.07 wt% catalytic loading, where further addition could construct the corresponding composites of Bi4O5Br2 and NH2-MIL-88B(Fe). The highest activity in the photocatalytic reduction of CO2 was achieved at 7.96 μmol g−1 h−1 of CH4 at 3.28 wt% of Bi4O5Br2. Besides, this catalyst possessed high photostability during the recycling experiments and the mechanism of this process was thoroughly explored. This study provides a novel strategy employing solid acid modulators for regulating the structure and morphology of MOFs showing high activity and stability in the photocatalytic reduction of CO2 to CH4.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Chen Wang,Yuepeng Liu,Zhongfang Li,Likai Wang,Xueliang Niu,Peng Sun
The 2D Fe, N-codoped graphene (2D Fe-NG) with high oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) performances for Zn-air batteries (ZABs) is prepared by a facile synthesis method, which used nitrogen-containing polymer (2,5-benzimidazole) (ABPBI), Fe salts and the cationic surface-active agent treated montmorillonite (CMMT) layer template. The vacuum assist and heat treatment of ABPBI/CMMT at 350 °C are the keys of Fe 3+ addition. The characterization analysis demonstrates that added Fe 3+ exists in the form of Fe-N x bonds formed by coordination with N species of ABPBI in MMT. Owing to the existed Fe-N x sites in 2D Fe-NG, it possesses excellent ORR performance better than 2D NG and 20 wt% Pt/C in O 2 -saturated 0.1 M KOH electrolyte. For OER, the performance of 2D Fe-NG is close to that of RuO 2 . The self-made ZAB based on 2D Fe-NG exhibits high peak power density, excellent rechargeable performance, and higher D-C cycling stability.
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2019
·
IF 7.65
Suding Yan,Xinping Zhang,Hui Zhang
The combination of persulfate (PS) activation by iron ions with electrochemical process (electro/Fe 3+ /PS) is a promising advanced oxidation process. However, almost all these systems were performed in an unbuffered solution and actually under acidic pH condition, with the electricity being frequently supplied by external power. Considering the high buffering capacity of wastewater and energy saving, peroxydisulfate (PDS) activation by Fe(III) species with bioelectricity provided by microbial fuel cell (MFC) for bisphenol A (BPA) oxidation was investigated at fixed near-neutral pH as well as acidic pH. The results indicate that 90.8% of BPA could be removed at pH 2.5. Though the iron existed in the form of precipitate, BPA could still be efficiently removed at pH 6.0. The precipitate formed in the system at pH 6.0 was identified as the amorphous iron oxyhydroxides. Sulfate radicals in the bulk solution and that adsorbed on the precipitate were the dominant reactive species responsible for the oxidation of BPA in the homogeneous and heterogeneous MFC/Fe(III)/PDS processes, respectively. The mechanisms of BPA degradation at both pH values were proposed via EPR and quenching tests as well as XPS analysis. The effects of operating parameters, the mineralization, the mineralization current efficiency and energy consumption were also explored.
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高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2022
·Vol. 169
·期 3
·034506
·
IF 4.386
Shuiyun Shen,Lin Li,Cehuang Fu,Guanghua Wei,Xiaojing Cheng,Jiewei Yin,Xiaohui Yan,Gang Wu,Junliang Zhang
A highly active Fe/N doped porous carbon electrocatalyst is constructed benefiting from the elaborate employment of benzimidazole (BIm) as nitrogen precursor. Compared with 2-methylimidazole (2-MIm), BIm can strongly capture Fe ions and strengthen the Fe–N bond, thus more Fe–N4 active sites form in the electrocatalyst with an enhanced catalytic activity towards oxygen reduction. The optimal sample exhibits a half-wave potential of 0.80 V vs RHE in acidic media.
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高影响因子
危险品化学品经营许可证（带存储）