Materials Science and Engineering B-Advanced Functional Solid-State Materials
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2024
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IF 3.9
Nan Jiang,Boyu Du,Di Gao,Zengbin Chai,Chao Liu,Xing Zhu
Herein, we synthesize the ZnAl-LDHs/NH 2 -MIL-125 composite via in situ growth of Ti-based metal–organic framework (MOFs) using layered double hydroxide (LDHs) as a carrier. The composite exhibits excellent performance for As(V) removal, achieving an adsorption capacity of 1634.0 mg/g in wastewater with an As(V) concentration of 1500 mg/L at pH of 10. The porous flower-like structure of the composite inherits the benefits of both the spatial structure of MOFs and the arsenic-affinity of LDHs. This results in an abundant active surface containing –OH, –NH 2 , M–O–M, and –COO– species, collectively contributing to As(V) adsorption. The adsorption progress governing As(V) removal follows the Langmuir isotherm and pseudo-second-order (PSO) kinetic models, revealing a monolayer and chemisorption mechanism. This study showcases the feasibility of the in situ growth of a MOF on LDHs to synthesize high-capacity adsorbents, offering a potential solution for As(V) removal from wastewater.
研究领域:
环境科学
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材料科学
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高影响因子
Journal of Materials Chemistry A
·
2017
·Vol. 5
·期 47
·24767-24774
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IF 8.867
Chenlong Dong,Xiangye Liu,Xin Wang,Xiaotao Yuan,Ziwan Xu,Wujie Dong,Muhammad Sohial Riaz,Guobao Li,Fuqiang Huang
Developing economical and stable bifunctional electrocatalysts for overall water splitting is of enormous importance for sustainable energy systems. Here, Ni/NiTiO3 with a villiform structure assembled by nanosheets is presented as an efficient bifunctional electrocatalyst. The Ni/NiTiO3 with a molar ratio of 15 : 1 (Ni : Ti) manifests remarkable catalytic performance for both the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) in alkaline solutions, with onset overpotentials of 270 mV for the OER and ∼50 mV for the HER. Large amounts of Ni nanoparticles inset in the NiTiO3 nanosheets possess a high specific surface of 28.4 m2 g−1 which is far greater than that of bare Ni (7.7 m2 g−1). The results of long-term OER operation confirm that the introduction of Ti4+ is favorable for enhanced stability. When the catalyst is employed as both the cathode and anode for overall water splitting, it displays an onset potential of 1.55 V in 1 M KOH solution which can rival that of the integrated performance of Pt/C and RuO2. Hence, our Ni/NiTiO3 electrocatalysts have enormous potential for realistic large-scale water splitting.
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
Surfaces and Interfaces
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2026
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IF 6
Jiahui Fan,Fengxiang Liang,Qingshuo Liu,Zongyuan Cao,Zhuo Zhang,Bin Chen,Peng Zhang
S-CeNiFe LDH/NiS 2 enhances the durability of seawater splitting. • Sacrificial NiS 2 nanoparticles protect catalyst from Cl- corrosion. • Sulphuration and Ce atoms mitigate the loss of Ni/Fe during seawater splitting. • Downshifted d-band optimizes the OER and suppresses ClER. The development of efficient and stable electrocatalysts to overcome chloride corrosion is crucial for sustainable hydrogen production via alkaline seawater electrolysis. Herein, a Ce-doped NiFe LDH heterostructure (S-CeNiFe LDH/NiS 2 ) was synthesized and exhibited enhanced bifunctional activity for both the oxygen and hydrogen evolution reactions (OER/HER) in alkaline seawater (1 M KOH + natural seawater), along with seawater corrosion resistance by the sacrificial NiS 2 nanoparticles. The optimized S-Ce 0.4 NiFe LDH/NiS 2 requires low overpotentials of only 310 mV for OER and 290 mV for HER at 100 mA cm -2 , surpassing both unsulfurated CeNiFe LDH and bare NiFe LDH. It also shows smaller Tafel slopes and maintains excellent stability over 100 h with minimal decay. The sacrificial role of NiS 2 in protecting LDHs is confirmed by its structural and chemical evolution alongside attenuated seawater decomposition. Performance enhancement stems from heterostructure synergy: expanded surface area, accelerated charge transfer, Ce doping-induced electronic modulation, and conductive NiS 2 for HER. This work addresses critical challenges in direct seawater splitting for scalable hydrogen production. Download: Download high-res image (264KB) Download: Download full-size image
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Ji-Ying Song,Lei Pan,Fu-Hao Zhang,Xin-Yun Song,Qi Wu
The residues of tetracycline antibiotics (TCs) in aquatic environments have led to pressing environmental issues, necessitating the development of efficient removal technologies. In this study, we constructed an adsorption-degradation synergistic system based on Fe₃O₄ nanoparticles/graphene oxide/layered double hydroxides (Fe₃O₄/GO/LDHs) for the removal of TCs from water. This Fe₃O₄/GO/LDHs composite ingeniously combines the adsorption advantages of both GO and LDHs: GO serves as a growth substrate for LDHs, effectively preventing the LDHs from agglomerating into bulk masses, while LDHs also inhibit the interlayer stacking of GO. This leads to enhanced specific surface area of up to 581.7 m 2 /g, establishing a robust structural foundation for efficient adsorption. The incorporation of Fe₃O₄ nanoparticles not only endows the material with excellent magnetism for convenient magnetic separation and recovery but also utilizes its peroxidase-like activity to achieve catalytic degradation. The equilibrium adsorption capacities of Fe₃O₄/GO/LDHs for tetracycline, oxytetracycline, and chlortetracycline reached 676.5 mg/g, 814.1 mg/g, and 808.1 mg/g, respectively, primarily driven by electrostatic, π-π and complexation interactions. In the presence of H₂O₂, Fe₃O₄/GO/LDHs activating H₂O₂ to generate reactive oxygen species, achieving over 90% degradation rate within 1 h, demonstrating strong catalytic capability. Integrating adsorption with in-situ degradation, Fe₃O₄/GO/LDHs functions as a network of micro-reactor factories, rapidly concentrating pollutants at catalytic active sites and creating a high-local-concentration microenvironment that dramatically accelerates catalytic reactions, thereby enhancing overall degradation efficiency. This study advances the development of adsorption-degradation bifunctional nanozymes for water purification.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Huapeng Zou,Deping Xia,Keyi Bao,Wei Wang,Jincan Yan,Sheng Han
The core/shell SiO 2 @LDHs nanohybrids were successfully synthesized utilizing a facile coprecipitation method. • The in-situ assembly of LDHs on the spherical SiO 2 greatly improved the synergistic lubrication effect between SiO 2 and LDHs. • The rheological and frictional properties of PAO40 containing SiO 2 @LDHs nanohybrids were studied. • The synergistic lubrication mechanism of core/shell SiO 2 @LDHs was proposed. The spherical SiO 2 wrapped with layered double hydroxides (LDHs) was accomplished and subsequently employed as a lubricant additive to enhance the friction-reducing and wear-resistance capabilities of poly α olefin 40 (PAO40). The results revealed that the as-synthesized core/shell SiO 2 @LDHs nanohybrids exhibited a remarkable lubrication effect in PAO40. Notably, when 1.00 wt% SiO 2 @LDHs were incorporated into PAO40, the formulated lubricant exhibited the best tribological performance due to the synergistic effect between SiO 2 and LDHs, with wear rate and coefficient of friction decreased by 48.87% and 43.53% at 200 N, respectively. Meanwhile, the friction behaviors of PAO40 containing SiO 2 @LDHs were further investigated under various sliding conditions. Additionally, a synergistic lubricating mechanism for core/shell SiO 2 @LDHs nanohybrids was also proposed by exploring the microstructure and composition of the worn surface, which involves the formation of lubricating films composed of various metal oxides. This research could offer some guidance for the development and design of high-performance LDHs-based lubricant additives. Download: Download high-res image (198KB) Download: Download full-size image
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高影响因子
Materials Today Communications
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2025
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IF 4.5
Ying Wang,Yan Zhang,Xingyi Zhou,Yang Cheng,Lin Liu,Xiaobing Zhao,Ningyi Yuan,Jianning Ding
The high active chemical properties of magnesium (Mg) alloys result in poor corrosion resistance, limiting their applications. Herein, a tri-layer composite coating with strong bonding force containing layered double hydroxide (LDH), 3-aminopropyltriethoxysilane (APS) and graphene oxide (GO) was fabricated onto the AZ31B Mg alloys surface by in-situ growth and self-assembly methods. The results showed that the corrosion resistance of Mg alloy was greatly improved after coated with the three-layer composite coating. Compared with Mg alloy, the corrosion current density of LDHs-APS/GO composite was reduced by 4 orders of magnitude. It was related to the synergistic effect of the strong binding force, the ion exchange capacity and the good barrier effect of the composite coating.
研究领域:
材料科学
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腐蚀与防护
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高影响因子
APPLIED SURFACE SCIENCE
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2022
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IF 7.392
Yuxin Li,Guolang Zhou,Jingzhou Yin,Jianmei Chen,Chao Tang,Cheng Liu,Qiaoqi Li,Tianshi Wang,Feng Li,Chao Yao,Lili Zhang
The production of hydrogen from sodium borohydride (NaBH 4 ) with a suitable catalyst is a promising route for the hydrogen industry. The exploration of the energy-saving catalysts with visible light response and photothermal effect is necessary for utilizing solar energy in hydrogen utilization from hydrolysis of NaBH 4 . In this study, a series of photo-thermal catalysts of Co x FeAl layered double hydroxides (Co x FeAl-LDHs x = 4, 6, 8) with abundant oxygen vacancy (V o ) are successfully synthesized for photo-thermal synergic catalytic H 2 generation from hydrolysis of NaBH 4 . Co x FeAl-LDHs differ in bandgap, V o concentration, and photo-thermal performance, with Co 6 FeAl-LDH show the highest concentration of V o and most efficient photo-thermal performance under 400–700 nm irradiation. Co 6 FeAl-LDH can significantly lower the activation energy of the hydrolysis of NaBH 4 ( E a = 35.46 kJ mol −1 ) and demonstrates excellent photo-thermal synergic performance with H 2 generation rate of 3.38 mol g −1 h −1 without additional heat source. The mechanism study shows that the h + , ∙OH, and V o in Co x FeAl-LDHs also play essential roles in the hydrolysis of NaBH 4 . This work develops a hydrotalcite-based photo-thermal synergistic catalyst, which provides a new approach for the design of sodium borohydride hydrolysis catalysts for hydrogen production.
研究领域:
材料科学
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催化化学
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可再生能源
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DOI
高影响因子
APPLIED CLAY SCIENCE
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2022
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IF 5.907
Lianyang Zhang,Yue Meng,Tiantian Dai,Yiyang Yao,Hui Shen,Bo Xie,Zheming Ni,Shengjie Xia
The decahedral morphology of BiVO 4 and ZnCr-layered double hydroxides (LDHs) nanosheets enables the construction of a BiVO 4 @LDHs Z -scheme heterojunction (BiVO 4 as core and LDHs as a shell) for photocatalytic degradation of norfloxacin, typical antibiotic. The effects of initial concentration of norfloxacin, catalyst loading, reaction temperature, and pH value on the performance of photodegradation were studied. It was found that the removal of norfloxacin can reach 90.3% under the optimized conditions. The core-shell structure enhances the specific surface area, improves the energetic alignment of the band structures, and produces enough hydroxyl and superoxide radicals to degrade norfloxacin. Density functional theory (DFT) calculations show that a built-in electric field is formed between ZnCr-LDHs and BiVO 4 , which promotes the transfer of photogenerated electrons from the valence band of ZnCr–LDHs to the conduction band of BiVO 4 . This transfer accelerates the flow of photogenerated electrons and reduces the recombination of electron-hole pairs, so that BiVO 4 @LDHs heterojunction shows excellent photocatalytic activity for norfloxacin.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
Journal of Energy Storage
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2023
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IF 9.4
Guiquan Liu,Guorong Wang,Zhiliang Jin
Nickel-based hydrotalcite has been widely used in supercapacitor electrodes due to its multivalence. Unfortunately, the poor stability and low conductivity for charge transfer impede further development in the field of energy storage. Herein, the graphdiyne (GDY) nanosheets were added to the growth process of nickel cobalt hydrotalcite (NiCo-LDHs), which to make up for these two deficiencies of NiCo-LDHs. Due to the strong combination of NiCo-LDHs and GDY, the specific capacitance of the obtained NiCo-LDHs@GDY reaches 1284 F g −1 (1.5 times than NiCo-LDHs) under a current density of 1 A g −1 with a rate performance of 72.08 % under the current density of 20 A g −1 . In addition, the NiCo-LDHs@GDY//AC Asymmetric Supercapacitor (ASC) assembled with activated carbon demonstrates an energy density of 23.06 Wh kg −1 at a high power density of 3108.96 W kg −1 . Rejoicingly, the charge storage capacity remains at 89.53 % after 5200 charge-discharge cycles under the current density of 10 A g −1 . These outcomes show that the NiCo-LDHs@GDY electrode material has remarkable application potential and can achieve better characteristics for high-performance supercapacitors in energy storage applications .
研究领域:
材料科学
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能源存储
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DOI
高影响因子
Inorganic Chemistry Frontiers
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2022
·Vol. 9
·期 18
·4582-4593
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IF 7.779
Xiaoxiao Niu,Meixiang Wang,Mengyu Zhang,Rui Cao,Zhaodi Liu,Fuying Hao,Liangquan Sheng,Huajie Xu
In this work, two novel fluorescent nanoprobes for detecting the anthrax biomarker 2,6-dipicolinic acid (DPA) have been developed based on a well-designed anionic sulphonated naphthalene derivative (L) by intercalating and coordinating Mg-Al-Ln-LDHs (Ln = Tb, Eu). The nanosensors exhibited good photostability and high reference fluorescence intensity due to a strong coordination interaction between the L and Al3+ ions of Mg-Al-Ln-LDH layers. Meanwhile, attributed to the antenna action of DPA in triggering the characteristic fluorescence emissions of Tb3+ and Eu3+ through energy transfer, the L-anchored Mg-Al-Ln-LDH nanoparticles exhibited high sensitivity and selectivity and remarkably stable ratiometric fluorescent detection of anthrax spore biomarkers in aqueous solutions, serum and actual spores. Benefiting from the intercalation and coordination of L into Mg-Al-Ln-LDHs, the obtained L@Mg-Al-Ln-LDHs can provide a reliable and stable reference signal for the fluorescence ratiometric detection of DPA with a limit of detection (LOD) of 11.6 nM and 3.56 × 103 spores per mL. More prominently, combining L@Mg-Al-Ln-LDH-based detection test strips with a smartphone demonstrates a reliable, rapid and simple method for real-time monitoring of anthrax biomarkers.
研究领域:
分析化学
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生物医学
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材料科学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2022
·Vol. 139
·期 28
·e52621
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IF 3.057
Xiao-Qiong Cheng,Wei Liu,Chun Zhang,Xiao-Cheng Chen,Shu-Qian Duan,Hai Fu
In recent years, the problem of oily sewage has seriously affected the ecological environment and human health. Thus, we prepared a novel biodegradable poly (lactic acid) (PLA) membrane with antibacterial property and oil–water separation function via electrospinning method. First, the matter of silver ion glass microbeads (AgGB) loaded with layered double hydroxides (LDHs) and the LDH@AgGB modified with 3-triethoxysilyl-1-Propanamine (APTES) were synthesized. Then, the LDH@AgGB were blended with PLA to prepare PLA/LDH@AgGB composite. And the PLA nanofibrous membranes were electrospun. The results showed that APTES could significantly improve the dispersion and compatibility of LDH@AgGB in PLA matrix. The addition of A-LDH@AgGB could greatly improve the crystallinity, and control the porosity and pore-size of PLA membranes. The maximum water contact angle of the PLA membranes could reach to 109.31°, while the oil contact angle of the PLA membranes decreased to 0° resulting in a high oil absorption capacity, and fast oil absorption rate performance. Meanwhile, the PLA membrane had efficient antibacterial property against Escherichia coli . The reported novel LDH@AgGB and its PLA composite membrane provided a method for designing and preparing environmental-friendly, high-performance materials with both excellent antibacterial property and oil–water separation.
研究领域:
材料科学
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环境科学
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生物医学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Chenzhang Liu,Jia Li,Min Zuo,Dickon H.L. Ng,Xiaohan Yang,Shuo Gao,Ziwei Lan
Antibiotic residues in water are closely related to human health and environment. Therefore, it is of great significance to detect and remove antibiotics in water. Here, by integrating nanozyme activity and self-propelled movement that can promote the mass transfer and diffusion in solution, a novel dual-functional CDs-LDHs@MnO 2 /Fe 3 O 4 magnetic micromotor with high exposed active sites for the detection and removal of oxytetracycline (OTC) was prepared by a biotemplate method. The micromotor could move autonomously in aqueous solution containing H 2 O 2 , reaching a mean speed of 158.35 ± 11.64 μm/s in 5 wt% H 2 O 2 . Due to the synergy of motion and the CDs-enhanced peroxidase-like activity, the micromotor could easily detect OTC in aqueous solution with a low detection limit (0.291 μM), wide detection range (0–100 μM), high selectivity, and a high magnetic recovery rate (near 85 %). More importantly, these micromotors also enabled rapid degradation of OTC through Fenton and Fenton-like reactions, reaching 87.93 % in the presence of 5 wt% H 2 O 2 . This work could provide a new idea for detecting and removing antibiotics from water.
研究领域:
环境科学
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材料科学
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分析化学
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DOI
高影响因子
危险品化学品经营许可证（带存储）