JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Yun Guo,Hong-Yi Li,Shuo Shen,Jie Cheng,Jiang Diao,Bing Xie
Chromium sludge is a hazardous solid waste which cannot be effectively treated but only piled up and abandoned, causing serious environment pollution and resource wasting. This work proposes an effective novel process to separately recover all resources in chromium sludge via a sustainable way. The obtained acid solving liquid from chromium sludge is desiliconized by cationic flocculant (PCAM) to induce coprecipitation of polysilicate gel and PCAM , which mixture is calcinated to generate the product of white carbon black in purity of 94.35% with a recovery of 92.58%. After desiliconization, V in the solving liquid is selectively extracted by microemulsion (ME), which is recovered as V 2 O 5 in purity of 99.34% with a recovery of 95.53% by the subsequent procedure of stripping-precipitation-calcination. The Fe 3+ in raffinate is reduced to Fe 2+ cations by Na 2 SO 3 , and is then recovered by H 2 C 2 O 4 precipitation to generate the FeC 2 O 4 product in purity of 99.12% with a recovery of 98.25%. Cr 3+ cations in residual solution are recovered by alkaline precipitation and calcination to generate the Cr 2 O 3 product in purity of 98.25% with a recovery of 92.68%. This work provides fresh penetrations into the synchronous detoxification, resource recovery and value-added utilization of hazardous industrial solid wastes.
研究领域:
环境科学
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材料科学
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化学工程
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Nanoscale Research Letters
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2020
·Vol. 15
·期 1
·1-10
·
IF 3.578
Song Shipai,Peng Xiang,Huang Kai,Zhang Hao,Wu Fang,Xiang Yong,Zhang Xiaokun
The stability issue of LiCoO 2 cycled at high voltages is one of the burning questions for the development of lithium ion batteries with high energy density and long cycling life. Although it is effective to improve the cycling performance of LiCoO 2 via coating individual LiCoO 2 particles with another metal oxides or fluorides, the rate capacity is generally compromised because the typical coating materials are poor conductors. Herein, amorphous Li 0.33 La 0.56 TiO 3 , one of the most successful solid electrolytes, was directly deposited on the surface of made-up LiCoO 2 electrodes through magnetron sputtering. Not only the inherent conductive network in the made-up LiCoO 2 electrodes was retained, but also the Li + transport in bulk and across the cathode-electrolyte interface was enhanced. In addition, the surface chemical analysis of the cycled LiCoO 2 electrodes suggests that most of the stability issues can be addressed via the deposition of amorphous Li 0.33 La 0.56 TiO 3 . With an optimized deposition time, the LiCoO 2 electrodes modified by Li 0.33 La 0.56 TiO 3 performed a steady reversible capacity of 150 mAh/g at 0.2 C with the cutoff voltage from 2.75 to 4.5 V vs . Li + /Li and an 84.6% capacity gain at 5 C comparing with the pristine one.
研究领域:
材料科学
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电化学
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Miaojia Du,Yaopeng Zhang,Shubin Zhang,Chunyan Ma,Fang Li,Chensi Shen
Antimony contamination in industrial wastewater requires effective simultaneous removal of both Sb(III) and Sb( V ) species, yet their contrasting chemical characteristics pose significant challenges for conventional adsorbents. Here, we demonstrate that amorphous chitosan-Fe coordination polymer sheets (CS-Fe aCPs) achieve exceptional Sb(III/ V ) capture through a dual-mode synergistic mechanism. For Sb(III), ligand exchange dominates the adsorption process, wherein Sb(OH) 3 directly coordinates with Fe 3+ centers by displacing weakly-bound NO 3 − ligands, as evidenced by stoichiometric NO 3 − release and significant Fe 2p binding energy shifts in XPS analysis. This process further triggers sequential Sb bridging interactions, producing an S-shaped isotherm and enabling a maximum capacity of 626.97 mg/g. For Sb( V ), the persistently high positive surface charge (+15 to +30 mV across pH 2–10) facilitates electrostatic capture of [Sb(OH) 6 ] − anions, supplemented by partial ligand displacement, achieving 574.55 mg/g capacity. The amorphous coordination framework provides abundant coordinatively unsaturated Fe 3+ sites and structural adaptability essential for accommodating both Sb species without steric hindrance. This dual-mode synergy ensures pH-insensitive performance, exceptional resistance to competing ions, and stable operation in fixed-bed column and membrane filtration systems, establishing CS-Fe aCPs as a cost-effective platform for mixed Sb speciation remediation.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Xiaojun Feng,Zhengqi Su,Simeng Li,Xiaoxing Ming,Di Zhang,Huaming Guo
The molecular structure of dissolved organic matter (DOM) is crucial for electron shuttling. However, the molecular transformation of DOM during the repeated electron shuttling and its impact on reduction of Fe oxides-adsorbed arsenic (As) remain poorly understood. Here, four groundwater DOM samples obtained from As-prone groundwater from the Hetao basin, China were concentrated to investigate their molecular transformations and electron shuttle ability during the repeated electron shuttling for reduction of As(V)-bearing goethite. We found that higher electron-transferring capacity (ETC) of high-As groundwater DOM resulted from the higher aromaticity and more functional moieties (i.e., total phenols and quinones) than that in low-As groundwater DOM, and irreversible loss of aromaticity and the functional moieties during the repeated electron shuttling lowered the ETC. This decreasing ETC of DOM reflected the decrease in its electron shuttle ability to reduce As(V)-bearing goethite. Concretely, the maximum concentration of Fe(II) produced from goethite reduction via electron shuttling decreased from 145 μM with the reduced DOM of the first round of electron shuttling to 111 μM with the reduced DOM of the third round of electron shuttling. Additionally, the positive correlation between total dissolved As (mainly as As(V)) and total Fe(II) concentration illustrated that electrons shuttled by the DOM preferentially reduced goethite, thus releasing the adsorbed As(V) into water. This study highlighted that the molecular transformation of DOM during the repeated electron shuttling lowered the electron shuttle ability, thereby impairing the reduction of Fe(III) oxide minerals for As mobility.
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JOURNAL OF THERMAL SPRAY TECHNOLOGY
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2026
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IF 3.4
Zhang Yu,Zhou Ping,Liu Xiaomei,Liu Yi,Huang Jing,Wu Shuangjie,Saitoh Hidetoshi,Zhang Botao,Li Hua
Electrochemical chlorine evolution is a promising approach for antimicrobial and wastewater treatment. However, the large-scale applications of conventional electrodes are hindered by the high cost of precious metals and tedious thermal decomposition method. In this study, precious metal-free electrodes for chlorine evolution were fabricated via liquid plasma spraying technique using a Ti 0.35 V 0.35 Sn 0.25 Sb 0.05 feedstock solution with varying total metal concentration. Scanning electron microscopy combined with EDS elemental analysis showed that the coatings exhibited a loose and porous morphology, with Ti, V, Sn and Sb elements uniformly distributed throughout. X-ray diffraction analysis identified characteristic diffraction peaks corresponding to VO 2 , SnO 2 , Sb 2 O 5 and TiO 2 in the coatings. The electrocatalytic properties of the coatings were evaluated using multiple electrochemical techniques, and the electrode prepared using the 1.0 M feedstock solution demonstrated the best performance. Antimicrobial test showed that after 30-s electrolysis, the disinfection rates of simulated tap water against E. coli and S. aureus exceeded 88.1% and 96.8%, respectively, whereas for the 0.06 M NaCl solution, both pathogens were inactivated by over 99.9% within 15 s. Additionally, methylene blue degradation reached 98.4% after 45 min of electrolysis. This study provides a new strategy for producing low-cost chlorine-evolving electrodes with potential application in antibacterial and wastewater treatment.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Bei-Chen Gao,Yu Tian,Run-Ping Liu,Yi-Xin Wang,Yang You,Wei-Ming Guo,Hua-Tay Lin
A two-step method including low-temperature pretreatment and high-temperature homogenization was developed to prepare high-purity (Ti 0.2 V 0.2 Ta 0.2 Nb 0.2 Hf 0.2 )(C 0.75 N 0.25 ) powder. In the first step, the reaction mixture was heated to 1450 ℃ to form intermediate carbonitride phases through carbothermal reduction-nitridation, and the second step at 1700 ℃ produced a single-phase high-entropy carbonitride. The powder prepared by single-step treatment at 1750 ℃ contained 2.28 wt% nitrogen and 0.18 wt% oxygen. In contrast, the two-step powder exhibited higher nitrogen content (2.45 wt%) and lower oxygen content (0.09 wt%), and the formation of a complete single-phase solid solution enabled accurate calculation of its composition (Ti 0.2 V 0.2 Ta 0.2 Nb 0.2 Hf 0.2 )(C 0.78 N 0.21 O 0.01 ). The ceramic prepared from the two-step powder achieved 99.8% relative density, with an average grain size of 4.58 ± 0.32 μm, a Vickers hardness of 22.73 ± 0.51 GPa, and a fracture toughness of 3.16 ± 0.30 MPa·m 1/2 , whereas the single-step ceramic reached only 86.5% relative density.
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APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Hongliang Fu,Wenyao Xue,Shaocong Zhan,Jing Zhao,Yue Lian,Zhifeng Wang,Yongfeng Hu,Huaihao Zhang
Metal active sites are anchored via the coordination effects between V/Co and terephthalic acid. • Co-doping constructs highly active Co-O-V catalytic sites, enhancing reaction activity. • PTA-derived oxygen-containing carbon layer mitigates metal site dissolution, improving stability. Developing highly active and stable catalysts for alkaline electrolytic water oxidation remains a challenge. Here, we prepared highly active, stable and conductive scale like microsheet Co-V 2 O 5 @C through Co-doping and coordination effect between terephthalic acid (PTA) and metal (V/Co). Specifically, Co-doping into V 2 O 5 lattice constructs highly active V-O-Co sites, thus reducing the adsorption energy of oxygen-containing intermediates. Meanwhile, the scale like microsheet Co-V 2 O 5 @C expose abundant active sites, enhancing oxygen evolution efficiency. The coordination effect between PTA and V/Co enables the in-situ formation of carbon layer on V 2 O 5 surface after carbonization, which effectively alleviates the dissolution of active sites and enhances stability. For conductive design, the Co introduction into V 2 O 5 can promote intrinsic conductivity. Moreover, under high-temperature carbonization, PTA evolves into oxygen-containing carbon layer, which boosts Co-V 2 O 5 @C overall conductivity and reaction kinetics. Based on above advantages, Co-V 2 O 5 @C displays good electrochemical performance in oxygen evolution reaction (OER) (low overpotential: 290 mV@10 mA cm −2 ; long stability: 50 h; small charge transfer resistance: 11.7 Ω). Download: Download high-res image (226KB) Download: Download full-size image
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TALANTA
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2025
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IF 6.1
Zhenxing Guo,Fang Xu,Longfei Su,Qiang Cheng,Liqiang Xu,Guoping Sheng
Fluorescence methods hold great potential for arsenate (As(V)) detection in food safety. However, the development of environmentally friendly and sustainable fluorescence indicators remains at an early stage. Herein, we develop a novel fluorescence sensing platform for As(V) detection. Curcumin (Cur), a plant-derived, non-toxic, and environmentally friendly food additive. Owing to its excellent fluorescent properties, it was used as a green fluorescent indicator in this study. Cerium dioxide nanoparticles (CeO 2 NPs) were synthesized via a green hydrothermal method and then assembled with Cur to form the CeO 2 @Cur fluorescent probe. The detection of As(V) was achieved through an adsorption-desorption mechanism, where As(V) displaces Cur from the CeO 2 surface, thereby restoring its fluorescence. Based on this mechanism, the probe exhibited a linear response (R 2 = 0.991) to As(V) concentrations within the range of 0.10-30.00 μM, with a low detection limit of 25.83 nM. Furthermore, by integrating smartphone-based RGB analysis of fluorescence images, a portable platform was constructed for the on-site detection of As(V). This work thus offers a promising strategy for sustainable and practical solution for As(V) detection in food and environmental samples.
研究领域:
环境科学
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分析化学
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食品安全
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纳米技术
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传感技术
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高影响因子
Food Chemistry-X
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2025
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IF 8.2
Zhijie Zhu,Xinxin Ma,Xinyue Pan,Xianfeng Du,Xu Chen
In this study, V-type wheat starch-tea polyphenols complexes (VS-TP) were used to improve the digestive properties and quality characteristics of steamed cold noodles. With TP content increasing from 2.5 % to 10.0 %, the storage modulus of VS-TP complexes decreased from 580.59 to 1341.85 Pa to 379.90–859.61 Pa, likely due to TP disrupting starch chain entanglement via noncovalent interaction (hydrogen bonds and CH–π bonds). TP also enhanced both short-range and long-range ordered structures of V-type starch, and the complexation index rose from 23.76 % to 84.61 % as TP content increased. Notably, the VS-10 %TP group showed a 47.28 % higher resistant starch content than the control group, which may be attributed to TP-V-type starch interactions and TP's amylase inhibition. However, the lightness, hardness, and gumminess of the steamed cold noodles decreased by 7.84 %, 51.46 %, and 49.84 % when adding 10 %TP. Balancing functionality and quality, 5 %TP was optimal for preparing low-digestibility steamed cold noodles with excellent textures.
研究领域:
食品科学
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碳水化合物化学
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功能食品
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淀粉技术
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CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2024
·
IF 3.7
Tao Wei,Mengting Wang,Yanyan Zhou,Xingtong Guo,Sijia Wang,Ye Liu,Cheng Sun,Qian Wang
ABSTRACT At present, commercial Li-ion batteries are hardly to satisfy the growing demand for high energy density , for this purpose, lithium metal batteries have attracted worldwide attention in recent years. However, its practical applications are hindered by the formation of Li dendrites and volume effect during Li plating/stripping process, which leads to a lot of safety hazards. Herein, we first employed MOF-derived V 2 O 5 nanoparticles to decorate the carbon fiber cloth (CFC) backbone to acquire a lithiophilic 3D porous conductive framework (CFC@V 2 O 5 ). Subsequently, the CFC@V 2 O 5 skeleton was permeated with molten Li to prepare CFC@V 2 O 5 @Li composite anode. The CFC@V 2 O 5 @Li composite anode can be stably cycled for more than 1650 h at high current density (5 mA·cm −2 ) and areal capacity (5 mA·h·cm –2 ). The prepared full cell can initially maintain a high capacity of about 143 mA·h·g −1 even at a high current density of 5 C, and can still maintain 114 mA·h·g −1 after 1000 cycles.
研究领域:
材料科学
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能源技术
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高影响因子
Surfaces and Interfaces
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2025
·
IF 6.3
Yu Yang,Zhikun Xu,Tianle Li,Xinzhi Ma,Shuangyan Lin
The development of versatile oxygen evolution reaction (OER) electrocatalysts for ampere-level seawater electrolysis holds enormous promise for clean energy generation. Still, it is hindered by the competing chlorine evolution and severe chloride corrosion. Herein, the V and Fe dual-doped Ni 3 S 2 /Ni(OH) 2 (VFe-Ni 3 S 2 /Ni(OH) 2 ) heterostructure was fabricated on nickel foam as an OER catalyst for direct seawater electrolysis. The dual-doping of V and Fe optimizes the electronic structure cooperatively, improves conductivity, and enriches active sites of Ni 3 S 2 /Ni(OH) 2 , boosting OER performance at ampere-level current density. The optimal electrode V 0.03 Fe-Ni 3 S 2 /Ni(OH) 2 requires only 385 mV overpotential to arrive 1 A/cm 2 and works stably for over 100 h at 100 mA/cm 2 in seawater electrolyte. The assembled electrolyzer V 0.03 Fe-Ni 3 S 2 /Ni(OH) 2 ||Pt/C exhibited a cell voltage of 1.52 V at 10 mA/cm 2 with a noteworthy stability of 100 h at 100 mA/cm 2 for seawater electrolysis, providing huge potential for hydrogen production from seawater.
研究领域:
材料科学
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能源化学
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 23
·2113068
·
IF 19.924
Xufeng Wang,Yajie Song,Xin Jiang,Qingsong Liu,Jidong Dong,Jian Wang,Xin Zhou,Bing Li,Geping Yin,Zaixing Jiang,Jiajun Wang
The complicated interfacial problems of poly(ethylene oxide) (PEO)-based solid polymer electrolytes (SPEs) at high voltages severely hinder its practical applications for high-energy-density all-solid-state lithium batteries (ASSLBs). Herein, the failure mechanisms of ASSLBs with LiNi 0.6 Co 0.2 Mn 0.2 O 2 (NCM)-PEO are studied. It is found that the ASSLBs after charge generates a sharp drop of 0.62 V at the cut-off voltage of 4.30 V, and induce a high interfacial resistance due to forming an uneven thick cathode electrolyte interface on the NCM surface, as well as cause the destruction of NCM surface structure during storage, leading to serious performance degradation. Constructing the interfacial nanolayer with aromatic polyamide (APA) on the surface of NCM active particles (NCM@APA) can mitigate interfacial side reactions between NCM and SPE. Robust interfacial nanolayers not only effectively protect the crystal structure of NCM but also provide a steady interfacial environment for Li + diffusion kinetics. Accordingly, NCM@APA||SPE||Li ASSLBs exhibit an acceptable voltage drop of 0.27 V after 10 days storage and a substantially improved electrochemical performance with an average coulombic efficiency of 99.1% and capacity retention of 76.7% at 30 mA g −1 after 80 cycles.
研究领域:
材料科学
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电化学
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能源存储
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高影响因子
危险品化学品经营许可证（带存储）