CHEMOSPHERE
·
2022
·
IF 8.943
Zhangbin Pan,Zhenqi Du,Junqi Jia,Aiguo Lin,Yongqiang Wang,Wuchang Song,Shaohua Sun,Hongbo Wang,Ruibao Jia,Lian Hou
2,6-dichloro-1,4-benzoquinone (DCBQ), a typical representative of Halobenzoquinones, is an emerging aromatic disinfection by-product (DBP) with high toxicity and carcinogenicity , generated commonly through the chlorination in the drinking water disinfection process while there is still a lack of research on its removal. In this study, the effects of ultraviolet-based advanced oxidation processes (UV-AOPs) on the degradation of DCBQ were evaluated. The results showed that UV-AOPs are effective in degrading DCBQ. The removal of DCBQ by UV/H 2 O 2 /O 3 was more significant than by UV/H 2 O 2 or UV/O 3, achieving a 96.7% removal rate at both the O 3 and H 2 O 2 doses of 1 mg/L. The results also indicated the alkaline and weakly acidic environments could facilitate the degradation of DCBQ, inorganic anions could inhibit DCBQ degradation and the degree of inhibition increased as the matrix concentration increased. The degradation of DCBQ was inhibited more by the CO 3 2− than the other matrix components, such as Cl − and NO 3 − . It was shown by the density functional theory simulations and the ultrahigh-performance liquid chromatography (UPLC) - Orbitrap mass spectra that the electrons in DCBQ are mainly on the chlorine atom connected to the carboatomic ring and that OH• can attack the chlorine atom to cause de-chlorination. The DCBQ degradation pathway may involve the oxidation of DCBQ to 3-hydroxy-2,6-DCBQ (HO–DCBQ) and 3,5-dichloro-1,2,4-pyrogallol, the further degradation of intermediate products by OH• to dechlorinated forms of HO–DCBQ and DCBQ.
研究领域:
环境科学
·
水处理工程
·
化学
✓ 已验证
DOI
高影响因子
Journal of Advanced Ceramics
·
2022
·Vol. 11
·期 5
·742-753
·
IF 11.534
Guo Meng,Liu Yufeng,Zhang Fengnian,Cheng Fuhao,Cheng Chufei,Miao Yang,Gao Feng,Yu Jun
A series of high-entropy perovskite oxides (HEPOs) La(CoCrFeMnNiAl x ) 1/(5+ x ) O 3− δ ( x = 0.4, 0.5, 0.6, and 0.7) have been synthesized by coprecipitation method combined with calcination process and explored as electrodes for supercapacitors. The crystal structure, microstructure, and elemental composition of HEPOs were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDS) in detail. The electrochemical properties of HEPOs as supercapacitor electrodes were elucidated. The specific capacitances of HEPOs ( x = 0.4, 0.5, 0.6, and 0.7) are 281.84, 353.65, 325.60, and 259.30 F/g at the current density of 1 A/g, respectively. After 2000 cycles, the specific capacitances of HEPOs ( x = 0.4, 0.5, 0.6, and 0.7) remain 85.01%, 88.61%, 86.37%, and 91.25%, respectively. Such outstanding electrochemical properties can be attributed to the entropy-stabilized structure caused by mixed six cations in B-site and the Al 3+ -doping suppressing active ion aggregation during charge—discharge process. This research highlights the potential of HEPOs as electrodes for supercapacitors.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2020
·Vol. 31
·期 7
·5492-5498
·
IF 2.22
Xu Lei,Xu Yuan
Ba(Zr x Ti 1− x )O 3 ceramics ( x = 0.15, 0.2, 0.25, 0.3) were prepared with solid-state reaction method. The ratio of Zr/Ti influences the crystal structure, micromorphology, ferroelectric and dielectric properties of BZT ceramics, which were characterized, respectively, by X-ray diffraction, scanning electron microscope, ferroelectric test system and dielectric test system. The X-ray diffraction patterns show that the zirconium titanate ceramic samples adopt cubic phase structure and no secondary phase. As the Zr 4+ content increases, the lattice constant increases and the grain size decreases. BZT ceramic sample with 15% zirconium content has the highest dielectric constant. As the Zr 4+ content increases, the dielectric constant is gradually decreased, and Curie temperature dropped from 334 to 226 K. The sample has the largest remanent polarization, when the zirconium ion content is 15%. Subsequently, the remanent polarization is reduced as the zirconium ion content increases.
研究领域:
材料科学
·
无机非金属材料
·
功能陶瓷
·
铁电材料
·
介电材料
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Huicai Xie,Quanyi Liu,Xiaohua Luo,Shengcan Ma,Xinqiang Gao,Zhenxing Li,Zhaojun Mo,Jun Shen
For more practical applications, research on magnetic refrigeration has been gradually focused on developing refrigerants with large magnetocaloric effect (MCE) under low magnetic fields (≤2 T). EuTiO 3 exhibits considerable low-field MCE near ordering temperature, meanwhile the magnetic switch from antiferromagnetic to ferromagnetic (AFM-FM) in it provides the feasibility of improving the magnetocaloric performance. In this study, a series of Eu(Ti,Nb,M)O 3 (M=Cu or Zn) compounds were synthesized, and the crystal structure, magnetic properties together with cryogenic MCEs were investigated in detail. The co-substitution contributes to an FM coupling domination in all the compounds. Besides, significantly enhanced and giant low-field MCEs were detected in these compounds. Under the field change of 1 T, all the samples possess remarkable magnetic entropy change (>15 J·kg -1 ·K -1 ) around 5 K without hysteresis. The corresponding refrigerating capacities are calculated to be 68.0, 72.6, 76.0, and 69.6 J·kg -1 , respectively, exhibiting an increase of 149–178% than EuTiO 3 . The outstanding magnetocaloric performances make the Eu(Ti,Nb,M)O 3 (M=Cu or Zn) compounds competitive candidates for cryogenic magnetic refrigeration.
研究领域:
材料科学
·
凝聚态物理
·
功能材料
·
低温工程
·
磁学
✓ 已验证
DOI
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2016
·Vol. 32
·期 4
·828-833
·
IF 0.844
HU Xue-Mei,GAO Xiang-Dong,LI Xiao-Min,GU Zheng-Ying,SHI Ying,WU Yong-Qing
Perovskite-structured SrSnO3 has attracted considerable attention in recent years because of its unusual dielectric and semiconducting properties. Certain dopants can be used to modify and improve the properties of these materials. Epitaxial SrSn1-x
Co
x
O3
(x = 0, 0.16, 0.33, 0.5) (SSCO) thin films were deposited on single crystal SrTiO3(001) substrates via the pulsed laser deposition method. The crystallinity, microstructure, optical, and electrical properties of the films were investigated. The results indicated that SrSn1-x
Co
x
O3
films were epitaxially grown on SrTiO3(001) substrate with both a perovskite structure and high crystallinity irrespective of the Co doping level. The films exhibited a smooth and dense morphology with a root-mean-square roughness of 0.44 nm and a film thickness of ~200 nm. As the‘x’
value increased from 0 to 0.5, the optical transmittance decreased from 90%to 25%, and the band gap dropped from 4.24 to 2.44 eV. Moreover, the doped film exhibited a high dielectric constant of 70.1 at 106 Hz, 57% higher than the control SrSnO3 film. The SSCO film displayed
surface resistivity of 172 Mω at room temperature and high stability at temperature up to 1000°C.
研究领域:
材料科学
·
凝聚态物理
·
薄膜技术
·
光电子学
✓ 已验证
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
·
2019
·
IF 1.536
Xiaofeng Wang,Beihai Zhou,Xia Shao
Dimethylamine-based pharmaceutical personal care products (DMA-based PPCPs) are a group of N-nitrosodimethylamine (NDMA) precursors. The acid dissociation constant (pKa) values of four DMA-based PPCPs were determined by potentiometric titration over the pH range of 3–11. The pKa values of ranitidine, nizatidine, doxylamine and carbinoxamine corresponding to the DMA moiety were 8.4, 6.8, 9.4 and 9.1, respectively. Competition reaction kinetics and pseudo-first-order reaction kinetics were used to determine the reaction rate constant (k) of the DMA-based PPCPs with O3, NaClO, ClO2 and KMnO4. Comparing the degradation rate constants of the four DMA-based PPCPs, the results of ClO2 oxidation were close, and for the other three oxidants, the order was kranitidine ≈ knizatidine > kdoxylamine ≈ kcarbinoxamine. Comparing the reaction rate of the four oxidants, for ranitidine and nizatidine, the order was kNaClO > kO3 > kKMnO4 > kClO2, and for doxylamine and carbinoxamine, the order was kO3 > kNaClO > kClO2 > kKMnO4.
研究领域:
环境科学
·
化学动力学
✓ 已验证
DOI
高影响因子
JAPANESE JOURNAL OF APPLIED PHYSICS
·
2013
·
IF 1.067
Dali Wang,Zhaohua Jiang,Bin Yang,Shantao Zhang,Mingfu Zhang,Feifei Guo,Wenwu Cao
A novel xPb(Ni1/3Nb2/3)O3–(1-x)(0.30BiScO3–0.70PbTiO3) (PNN–BS–PT) ternary system was prepared by the columbite precursor method. The phase structure, microstructure, and electrical properties of ceramics of this system were investigated to identify the morphotropic phase boundary (MPB) composition of this system. The MPB with coexisting rhombohedral–tetragonal phases of PNN–BS–PT was located at approximately x=0.35, confirmed by their respective electric properties. With increasing PNN content, the coercive field EC, the Curie temperature TC, and the rhombohedral-to-tetragonal phase transition temperature TR–T were found to decrease and showed nearly linear dependences on their compositions. The enhanced properties were achieved in the MPB composition with x=0.35, which are as follows: dielectric constant εr=3160 (1 kHz), piezoelectric coefficient d33=490 pC/N, and electromechanical coupling factor kp=0.44. In addition, a large bipolar strain on the order of 0.6% was achieved for the composition when an electrical field E=40 kV/cm was applied.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
IONICS
·
2026
·
IF 3.4
Xie Yi,Luo Qingsong,Han Lina,Yu Lingxin,Li Baolong,Zeng Xiaoyuan,Zhang Yingjie,Dong Peng
Layered O3-type oxides have attracted significant interest as high-capacity cathode materials for sodium-ion batteries, owing to their ample sodium storage and competitive energy density. However, their practical implementation is hindered by irreversible phase transitions and sluggish Na + diffusion kinetics, leading to rapid capacity decay. Herein, we realize a unique dual-spacing modulation in O3-NaNi 0.5 Mn 0.5 O 2 cathodes via rational Cu substitution to effectively mitigate these intrinsic challenges. Comprehensive structural characterization reveals that this targeted modulation simultaneously expands the Na + layer spacing to facilitate ionic transport and contracts the transition metal slabs to enhance structural coherence. Consequently, the optimized NaNi 0.45 Mn 0.5 Cu 0.05 O 2 electrode delivers a high reversible capacity of 129.0 mA h g − 1 at 0.5 C, with exceptional cycling stability (83.3% capacity retention after 100 cycles) and outstanding rate capability (94.6 mA h g − 1 at 5 C). Furthermore, even within an extended voltage window (2.0–4.3 V), the material maintains a retention of 69.3% due to enhanced structural integrity. When paired with a commercial hard carbon anode, the resulting full cell demonstrates performance analogous to the half-cell configuration, underscoring its promising potential for large-scale commercialization. Graphical
✓ 已验证
产品关联
DOI
高影响因子
Catalysts
·
2026
·Vol. 16
·期 9
·769
·
IF 4.5
Jingsi Liu,Fan Yang,He Guo
Sulfamethoxazole (SMX), a persistent sulfonamide antibiotic widespread in aquatic environments, resists conventional water treatment degradation. This work developed a NaOAc/Fe3+/O3homogeneous ozonation system for SMX abatement. Four comparative reaction groups confirmed significant synergism between trace Fe3+and sodium acetate. Under optimized near-neutral conditions, 96.19% SMX was removed within 30 min with kobs= 0.107 min−1, outperforming sole O3, O3/NaOAc and O3/Fe3+by 11.0%, 31.0% and 21.9% respectively. Single-factor tests revealed excess Fe3+or acetate suppressed catalytic activity, while alkaline conditions accelerated degradation yet aggravated iron precipitation. Radical quenching and p-CBA probing indicated that acetate coordination did not increase bulk ·OH exposure, while the stronger TEMP-derived TEMPO response after acetate addition was consistent with enhanced1O2-associated oxidation, suggesting that acetate altered the relative contributions of ozone-derived oxidation pathways. Post acetate background deduction, the ternary system achieved higher TOC/COD elimination. Twelve SMX intermediates were identified via LC-MS, with three ring-opening degradation pathways proposed. QSAR toxicity evaluation indicated that most intermediates possessed lower bioconcentration and developmental risks than raw SMX. Overall, the results indicate that weak acetate ligands can alter iron-mediated ozone oxidation pathways, providing a low-dose and economical strategy for antibiotic wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Kemeng Wang,Yuyu Chen,Kunpeng Li,Shijie Li,Wenwei Wu,Yingying Huang,Xuehang Wu
Surface structural instability and related side reactions are widely acknowledged as the primary factors leading to the failure of layered oxide cathodes during extended high-voltage cycling of sodium-ion batteries (SIBs). In this study, we propose an epitaxial entropy-assisted surface engineering strategy that integrates dual-site W/B surface doping with an in situ formed Na2WO4 protective coating layer to enhance the high-voltage cycling performance of the O3-type Na0.9Ni0.33Mn0.40Cu0.12Ti0.15O2 (NMCT). Tungsten and boron, selected for their high electronegativity, occupy octahedral and tetrahedral surface sites, respectively, which increases local configurational entropy. This codoping effectively anchors lattice oxygen at the surface, improves phase transition reversibility, and mitigates structural degradation that propagates from the surface into the bulk during high-voltage cycling. The Na2WO4 layer suppresses electrolyte decomposition while promoting efficient Na+ transport. As a result, WB-modified NMCT exhibits significantly enhanced cycling stability (79.7% capacity retention after 200 cycles at 100 mA g–1) and rate capability (95.1 mAh g–1 at 2000 mA g–1) at an upper cutoff voltage of 4.3 V, outperforming pristine NMCT (60% retention and 77.1 mAh g–1). This work offers an effective approach to rationally reconstruct the surface of layered oxide cathodes, thereby overcoming the upper cutoff voltage constraint for high-performance SIBs.
✓ 已验证
DOI
PubMed
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2026
·
IF 9.9
Yanyun Ju,Qimeng Zhang,Tingqiang Lin,Rui Feng,Zehong Wang,Bowei Liu,Ling Zhou,Lijie Dong
Poly (amide acid) acts as an interfacial mediator via hydrogen bonding. • PZT content is increased by 2.8 times with an optimized PAA concentration of 8 wt%. • Sintered flexible GFF/PZT composite forms a continuous piezoelectric ceramic network. • The flexible sensor achieves high sensitivity and excellent durability. Flexible piezoelectric composites have attracted increasing interest for sensor applications. However, for flexible fiber-based piezoelectric composites, constructing a continuous ceramic network with high loading and robust interfacial bonding on the fiber fabric remains challenging. In this study, we fabricated flexible glass fiber fabric (GFF)/PZT piezoelectric composites. Poly (amide acid) (PAA) was introduced as a molecular mediator on the GFF, where PAA forms hydrogen bonds with the hydroxyl group and acetate groups of the PZT sol, enabling a 2.8-fold increase in PZT loading at an optimized PAA concentration of 8 wt%. The resulting GFF/PZT composite exhibits a continuous ceramic phase and retains good flexibility with a minimum bending radius of 15 mm. After encapsulation with interdigitated electrodes via epoxy resin (Ep), the GFF/PZT/Ep sensor achieves a minimum bending radius as low as 2.5 mm and exhibits enhanced electrical properties: a dielectric constant of 147, a low dielectric loss of 0.01 at 10 3 Hz, and an inverse piezoelectric coefficient of 119.5 p.m./V. As a bending sensor, it delivers a high sensitivity of 7.52 V per unit flexural strain and excellent durability over 1000 cycles. As a vibration sensor, it attains a sensitivity of 211.16 mV/g at 10 Hz and maintains stable output over 10,000 cycles. This work offers a promising strategy for developing flexible piezoelectric composites for energy conversion applications. Download: Download high-res image (1MB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Jing Sun,Cai-ling Liu,Chen-xu Chen,Feng Hua,Hong-bo Huang,Mei-lan Xie,Ling-ling Liu,Jun-tong Huang,Dui Ma,Xia-hui Zhang,Xiao Liang
O3-type layered transition metal oxides are regarded as promising cathode candidates for sodium-ion batteries (SIBs) owing to their appealing properties and cost-effectiveness. Nevertheless, the complex phase transformations and sluggish sodium ion diffusion rate significantly hinder their cycling stability and rate performance. Here, a Co-free Mg-substituted high-entropy P2/O3-Na 0.7 Mn 0.41 Cu 0.1 Fe 0.1 Ti 0.09 Ni 0.25 Mg 0.05 O 2 biphasic layered oxide is designed to address these challenges. Ex-situ X-ray diffraction and X-ray photoelectron spectroscopy analyses demonstrate that Mg doping effectively restrains the detrimental phase evolution, which reduces the Mn 3+ content and its Jahn-Teller effect, resulting in improved Na + ions diffusion kinetics. Moreover, the replacement of Ni with Mg strengthens the TM-O bond, which in turn suppresses the oxygen redox reactions within the high voltage range and reduces the oxygen deficiencies. As a result, the as-prepared high-entropy biphasic cathode achieves a remarkable capacity of 138.7 mAh g −1 at a rate of 0.2C, and maintains a capacity of 103.8 mAh g −1 at 5C with 81.1 % capacity retention after 200 cycles. Notably, the full cell paired with hard carbon anode demonstrates superior capacity retention of 87.5 % over 200 cycles at 2C. This work broadens the correlation between high-entropy structure and performance, providing novel perspectives on the construction of advanced high-entropy cathodes for high-performance SIBs.
✓ 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）