DESALINATION
·
2026
·
IF 9.9
Jianling Liu,Jiangnan Zhao,Hanyang Zhao,Hanyu Li,Yan Chen,Jiwei Wang
PDA interlayer enables uniform in situ growth of defective Ce-MOF on chitosan. • Ce-ATA-25PA@PDA@CS achieves a phosphate capacity of 126.6 mg P g −1 . • Phosphate removal reaches 98.6% in real aquaculture wastewater within 60 min. • Synergistic ligand exchange, electrostatic attraction, and H-bonding drive uptake. • The microspheres retain over 68% phosphate removal after five regeneration cycles. The excessive accumulation of phosphate in water bodies can disrupt the ecological balance and pose a threat to human health, highlighting the urgent need for efficient and economically viable adsorbents to treat waters with high phosphorus content. The defective cerium-based metal–organic framework (Ce-MOF) has shown considerable potential for phosphate removal due to its abundant coordinatively unsaturated Ce active sites. However, the high cost of pure Ce-MOF limits its practical application in the large-scale treatment of phosphorus-containing wastewater. In this study, the composite microspheres (Ce-ATA-25PA@PDA@CS) as phosphorus adsorbents were successfully prepared by in situ growth strategy when the new defective Ce-MOF (Ce-ATA-25PA) grew on the surface of the polydopamine coated chitosan microspheres (PDA@CS). The PDA interlayer promoted a denser and more uniform distribution of Ce-ATA-25PA on the chitosan support, and the resulting composite microspheres exhibited an increased specific surface area and a maximum phosphate adsorption capacity of 126.6 mg P/g under the optimized conditions. Mechanistic investigations have shown that phosphate uptake is influenced by the synergistic coupling of multiple interactions: the phosphate uptake involved Ce–O–P interactions at Ce sites together with contributions from the –NH₂ and –OH groups of the PDA@CS support through electrostatic attraction and hydrogen bonding. This work provides presents an environmentally friendly, and efficient MOF/biomass composite adsorbent, which can be used for treating phosphorus-containing wastewater treatment and offers a useful strategy for designing advanced MOF/biopolymer materials for aquatic environmental remediation. Download: Download high-res image (164KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 47
·期 3
·118888
·
IF 6.3
Ji Huang,Liwen Qin,Yang Wu,Jingjing Chen,Xiangdong Ding,Changbai Long,Xue Chen,Laijun Liu
Calcium bismuth niobate (CBNO), known for its high Curie temperature ( T C ), has been investigated as a potential material for vibration sensor due to its ability to operate at elevated temperatures. However, the inherent weakness in piezoelectric response of CBNO has limited its sensing performance. This study successfully induced pseudo-tetragonal distortion in CBNO through the co-doping effects of K/Ce at A site and In/W at B site. This modification altered the interaction between the perovskite layer and the bismuth layer, thereby enhancing both piezoelectric and ferroelectric properties. The co-doped Ca 0.94 (K 0.5 Ce 0.5 ) 0.06 Bi 2 Nb 1.96 (In 1/3 W 2/3 ) 0.04 O 9 exhibits a significantly enhanced piezoelectric coefficient ( d 33 ) of 22.3 pC/N, compared to the 5~7 pC/N for pure CBNO ceramics, and the remanent polarization ( P r ) increased to 11.91 μC/cm 2 , compared to 3.83 μC/cm 2 for CBNO. Furthermore, the sample maintains a suitable resistivity ( ρ = 2.46 × 10 5 Ω·cm) even at 600°C. This work not only deepens the understanding of bismuth layer structure ferroelectrics (BLSFs) but also proposes a viable co-doping strategy, providing an effective approach for developing high-performance, high-temperature-resistant piezoelectric sensors.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Tengru Xie,Luwei Wang,Hexiang Wang,Chuan Cao,Chenliu Tang,Xiang Hu
Antibiotics cannot be completely removed through traditional treatment technologies, leading to their accumulation in the aquatic environment and posing a serious threat to human health. MOF-derived carbon is a promising material for the degradation of antibiotics. Herein, in this study, a novel Co/Ce-MOF electrode was rapidly prepared by one-step electrodeposition at room temperature. Then the Co/Ce-MOF electrode was carbonized to obtain MOF-derived carbon composite electrode (Co/Ce-C350Air). The ceftazidime (CAZ) degradation efficiency achieved 96.59% within 60 min under the optimum conditions ([CAZ] = 5 mg/L, [Na 2 SO 4 ] = 50 mM, current density = 0.8 mA/cm 2 , electrode gap = 2 cm and initial pH = 5.6) and the degradation process of CAZ conformed to first-order reaction kinetics. Furthermore, the removal efficiency of CAZ maintained at 94.92% even recycling for 6 times, demonstrating the good electrochemical stability of the Co/Ce-C350Air composite anode. The synergistic effect between Co and Ce metals improved the catalytic performance and stability of the Co/Ce-C350Air electrode. Radical quenching experiments and electron paramagnetic resonance (EPR) spectra results revealed that surface hydroxyl radicals were the main active species in the degradation of CAZ. The main intermediate products were identified by high-performance liquid chromatography-mass spectrometry (HPLC-MS) and the possible degradation pathway was proposed. In addition, toxicity tests with Ecological Structure Activity Relationships (ECOSAR) software results indicated that the toxicity of the intermediate products was lower than that of CAZ. This work provided a safe and effective strategy for the degradation of antibiotics in the electrochemical oxidation system.
✓ 已验证
产品关联
DOI
高影响因子
TALANTA
·
2023
·
IF 6.1
Baisen Chen,Rongxia Tan,Yanhui Zhong,Yufei Hu,Gongke Li
Ce-PA-Tb polymer with Ce and Tb as metal ion centers was prepared and applied in chemiluminescence (CL) reaction. The structure and property of Ce-PA-Tb were explored. Ce-PA-Tb combines both the oxidant ion (Ce(IV)) and luminescence ion (Tb(III)). Difloxacin can enhance the CL signal of Ce-PA-Tb-SO 3 2- reaction in acidic medium. Under the optimized affecting factors, a CL method for the selective difloxacin determination was established. The CL intensity showed a good linear relationship from 10.0 to 300.0 μg/L (r = 0.9996) with the limit of detection was 1.1 μg/L. The method with the signal response at 0.5 s and completed the CL process within 10 s. The method was used to determine difloxacin in aquatic products, and the recovery rate was in the range of 88.1%–104.0%. The CL method designed Ce-PA-Tb based is demonstrated to be an excellent tool for difloxacin determination in aquatic products.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CATALYSIS COMMUNICATIONS
·
2023
·
IF 3.7
Lirong Lv,Zhongguo Zhang,Sheng Wang,Yue Shan,Liangliang Wang,Tongzhou Xu,Peiran He
A series of Y Ce catalysts were prepared using Y-loaded (Y = Cu, Co, Mn) Ce-based metal–organic framework as a precursor. Mn-loaded CeO 2 exhibited significantly better catalytic activity in the catalytic oxidation of ethyl acetate (EA) than noble metal catalyst. The relationship between the physicochemical properties of Y Ce catalysts and catalytic activity was studied by different characterization methods. The enhanced catalytic activity was attributed to the strong interaction between the transition metals and Ce, high specific surface area, abundant lattice defects, more oxygen vacacies and higher O latt /(O latt + O ads + O w ) molar ratios. The main intermediates in the oxidation of EA were ethanol, acetic acid, acetone, acetaldehyde and diethyl ether.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF RARE EARTHS
·
2021
·
IF 3.712
Ye Zhang,Yong Gao,Peng Wang,Duo Na,Zhenming Yang,Jinsong Zhang
Extraction reactor is a major research area of interest within the field of rare earths extraction and separation. SiC foam offers excellent material characteristics as well as three-dimensional (3-D) reticulated structure; however, very little research has been carried out on its application in extraction reactor so far. In this work, a static mixer reactor based on SiC foam was designed and demonstrated to extract and separate Ce(III) and Pr(III) from nitric acid media by using 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester (P507) as extractant. The structure–performance relationship between SiC foam and extraction performance was studied by experiment combined with computational fluid dynamics (CFD) simulation. The experiment data are in good agreement with the simulation results. Contrast experiment by using a Kenics mixer was carried out, and SiC foam shows better extraction and mass transfer performance. Using the optimal structural SiC foam (pore size D = 2.3 mm, open porosity ε = 85%, foam length L = 80 mm), high extraction efficiency η (Pr(III): 94.6%, Ce(III): 88.5%) and separation factor β (2.27) between Ce(III) and Pr(III) is achieved at a high total throughput of 200 mL/min. Besides, overall volumetric mass transfer coefficient K L a of Pr(III) and Ce(III) are 0.519 and 0.378 s −1 at the residence time τ of 3.6 s, respectively, which reach the high level of microchannel reactors and are better than conventional extractors and other static mixers. SiC foam is found to be applicable as a static mixer for efficient and high-throughput extraction and separation of rare earths.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2021
·Vol. 37
·期 3
·565-570
·
IF 1.307
Jian Shaoju,Tian Zhiwei,Zhang Kaiyin,Duan Gaigai,Yang Weisen,Jiang Shaohua
C e/ZnO decorated carbon nanofibers(CNFs) heteroarchitectures(Ce/ZnO/CNFs) have been synthesized using electrospinning technique followed hydrothermal method, which have a high visible light photocatalytic activity. The samples were characterized by means of SEM, FTIR and XRD. The photocatalytic performance of Ce/ZnO/CNFs was tested with the methylene blue in the presence of visible light irradiation. In this work, we have analyzed the effects of Ce doping amount, initial methylene blue(MB) concentration and dosage of Ce/ZnO/CNFs on photocatalytic efficiency of the composite. The results showed that the photocatalyst containing 1.0% Ce in molarity(CZC1) obtained by autoclaving at 150 °C has the best photocatalytic degradation of MB than other as-synthesized samples. Ce/ZnO/CNFs catalysts exhibit a good stability and reusability, which would be an economical and environmentally friendly photocatalyst for various practical applications.
✓ 已验证
产品关联
DOI
高影响因子
CATALYSIS TODAY
·
2021
·
IF 6.766
Liangliang Zhang,Yang Feng,Huihui He,Yang Liu,Jiena Weng,Peng Zhang,Wei Huang
In this article, we report a series of hexanuclear rare-earth MOFs based on Ce (III) and 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin, namely Ce-PCN-224, with a new zln topology through linker induce strategy. Ce-PCN-224 exhibits permanent porosity, high water and thermal stabilities, and the ability to adsorb dye molecules in the aqueous environment. Moreover, after post-metallation with Fe, Co, and Ni, Ce-PCN-224(Fe) and Ce-PCN-224(Co) were proved to be efficient heterogeneous catalysts for the cycloaddition of CO 2 with epoxides, attributed to the combination of multiple Lewis acidic sites.
✓ 已验证
产品关联
DOI
高影响因子
RENEWABLE ENERGY
·
2020
·
IF 6.274
Hui Yong,Xin Wei,Jifan Hu,Zeming Yuan,Ming Wu,Dongliang Zhao,Yanghuan Zhang
A composite catalyst Fe@C was successfully prepared by chemical blowing and carbonization method, at the same time its defect level, pore distribution and specific surface area were investigated. In addition, the Mg–Ce–Y + x wt.% Fe@C ( x = 1, 3, 6, 10) composites also were synthesized by mechanical ball-milling. The effect of the Fe@C content on hydrogen absorption and desorption property of the Mg–Ce–Y alloy was characterized by XRD, SEM , TEM, PCI , and DSC method. The activated composites exhibit an excellent absorption and desorption kinetic performance, which attributeed to the efficient catalysis of Fe@C composite catalyst. The Mg–Ce–Y + 6 wt % Fe@C composite exhibits the fastest hydrogen absorption/desorption kinetics and relatively lower decomposition temperature and it can absorb 90% of the maximum hydrogen capacity within 2 min and only takes 12 min to release the same amount of hydrogen under 300 °C. Besides, the dehydrogenation activation energy is reduced to 84.9 kJ/mol and the initial hydrogen release temperature is less than 250 °C, which is owing to the outstanding synergistic catalyst effect of Fe@C on Mg-based hydrogen storage alloy . However, the thermodynamic properties of the composites have not been improved, of which the enthalpy change is 80.6 kJ/mol.
✓ 已验证
DOI
高影响因子
NANOTECHNOLOGY
·
2020
·Vol. 31
·期 12
·125402
·
IF 3.551
Tianyun Chen,Rongrong Zhang,Bo Ye,Qinghua Yang,Huajian Xu,Lei Zheng,Longgang Wang
In this work, a cerium doped CoP nanoparticles (NPs) embedded in carbon nanotubes (CNTs) for efficient and durable hydrogen evolution was developed. The detailed preparation process was described as the followings. First, cerium was introduced into ZIF-67 to form Ce-doped ZIF-67 by a joint nucleation method. Then, the Ce-doped Co-CNTs was synthesized by carbonization of Ce-doped ZIF-67. During the process, the Co2+ was reduced to form Co NPs and the elegant nanostructure of CNTs was formed by the catalytic effect of Co NPs. Finally, by using Ce-doped Co-CNTs as the precursor, the target catalyst (Ce0.05-doped CoP CNTs) was obtained through a chemical vapour deposition (CVD) process in the presence of NaH2PO2. Results of the transmission electron microscopy (TEM) and scanning electron microscopy (SEM) showed that the target catalyst maintained the original rhombic dodecahedron morphology of ZIF-67 and the CoP NPs were embedded in CNTs and distributed uniformly throughout the catalyst. In electrochemical measurements, the catalyst showed the best performance for HER in 0.5 M H2SO4 solution. The onset potential, Tafel slope, electron transfer resistance (Rct) and double-layer capacitance (Cdl) of the target catalyst was 49 mV, 78 mV dec−1, 19.2 Ω and 10.5 mF cm−2, respectively. Meanwhile, the catalyst yielded a current density of 10 mA cm−2 merely at an overpotential of 146 mV. Furthermore, it maintained 90% of the original current density in a chronoamperometry measurement and showed no obvious decay even after 2000 cycles scans in a long-term durability test.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2018
·
IF 3.057
Jiali Xue,Kuibao Zhang,Zongsheng He,Wenwen Zhao,Weiwei Li,Dayan Xie,Haibin Zhang
Simulated radioactive soil waste has been immobilized rapidly by self-propagating high-temperature synthesis (SHS) using CuO as the oxidant. CeO 2 was incorporated into the soil waste as the surrogate of radioactive actinide nuclides. The phase composition, microstructure, elemental distribution, density and chemical durability of obtained waste forms have been characterized. These results show that the radioactive soil waste forms were successfully prepared with zirconolite (2M-CaZrTi 2 O 7 ), soil (SiO 2 ) and Cu as the main phases. Simulated nuclide Ce was successfully immobilized in the solidified zirconolite-rich ceramic body. Moreover, the radioactive soil waste solidified body exhibits excellent chemical durability. The normalized leaching rates (42 d) of Si and Ca are in low values of 4.1 × 10 −3 and 2.5 × 10 −3 g m −2 d −1 , while that of Ce is kept as 10 −4 − 10 −6 g m −2 d −1 within 42 days. This result indicates a potential application of SHS for the safety disposal of radioactive contaminated soil waste.
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2018
·
IF 5.123
Chenlu Pu,Hongli Zhao,Yayun Hong,Qiliang Zhan,Minbo Lan
In this work, we presented a facile elution-free method for ultrasensitive enrichment of glycopeptides using two kinds of novel Ce-metal-organic frameworks (Ce-MOF) post-modified with hyaluronic acid (Ce-MOF@HA) and glutamic acid (Ce-MOF@Glu). Both of the synthesized materials remained stable in the loading buffer to enrich glycopeptides selectively and degrade in the eluent to release captured glycopeptides. Due to the dissolution of materials, the elution step of the enrichment process is omitted, resulting in an extremely high sensitivity (detection limit, 0.5 fmol/μL). Meanwhile, Ce-MOF@HA and Ce-MOF@Glu also possessed excellent selectivity with molar ratios of IgG and BSA digests being 1:1000 and 1:500, respectively. Noticeably, the practical applicability of the obtained materials was inspected by analyzing the glycopeptides enriched from human serum (2 μL) by nano-LC-MS, in which 434 N-glycopeptides from 182 N-glycoproteins (by Ce-MOF@HA) and 328 N-glycopeptides from 135 N-glycoproteins (by Ce-MOF@Glu) were detected, respectively. This work provides a new method to simplify the process of glycopeptides enrichment and also paves a novel way for the enrichment of trace targets from complex matrices.
✓ 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）