MATERIALS RESEARCH BULLETIN
·
2019
·
IF 3.355
Hongjun Fang,Yusong Pan,Minyuan Yin,Chengling Pan
It is an effective method to explore full spectrum responsive photocatalyst for improving their photocatalytic activity. Herein, Ti 3 C 2 −OH/Bi 2 WO 6 :Yb 3+ , Tm 3+ composites were successfully synthesized via a facile hydrothermal method. The resultant Ti 3 C 2 −OH/Bi 2 WO 6 :Yb 3+ , Tm 3+ composites accompanied 2D/2D heterojunction with grid-like porous structure present a significant enhancement of photoactivity towards degradation of RhB under visible and NIR light irradiation. Specifically, the 0.2-Y/T-TB2.8 composite exhibits the best photocatalytic activity for RhB removal, in which the RhB degradation efficiency was 99.8% (Vis-NIR, 30 min), 91% (Vis, 30 min), and 48% (NIR, 160 min). The excellent photocatalytic activity of the composite is attributed to the grid-like porous structure endowing it with an enhanced RhB adsorption, favorable charge separation resulting from the outstanding conductivity of the Ti 3 C 2 −OH, and up-conversion mechanism via energy level transition of Yb 3+ /Tm 3+ . In addition, the radical capture experiments verified that the hole (h + ) plays the important role for degradation of RhB.
研究领域:
材料科学
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环境科学
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光化学
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2024
·
IF 13
Jia Chen,Maoheng Fei,Meijun Ni,Yilin Wang,Zhifang Liu,Yixi Xie,Pengcheng Zhao,Zhiyong Zhang,Junjie Fei
In this work, multi-layer Ti 3 C 2 – carbon nanotubes – gold nanoparticles (Ti 3 C 2 -CNTs-Au) and cyclodextrin metal-organic framework – carbon nanotubes (CD-MOF-CNTs) have been prepared by in situ growth method and used to construct the ultra-sensitive rutin electrochemical sensor for the first time. Among them, the large number of metal active sites of Ti 3 C 2 , the high electron transfer efficiency of CNTS, and the good catalytic properties of AuNPs significantly enhance the electrochemical properties of the composite carbon nanomaterials. Interestingly, CD-MOF has a unique host–guest recognition and a large number of cavities, molecular gaps, and surface reactive groups, which gives the composite outstanding accumulation properties and selectivity for rutin. Under the optimized conditions, the constructed novel sensor has satisfactory detection performance for rutin in the range of 2 × 10 −9 to 8 × 10 −7 M with a limit of detection of 6.5 × 10 −10 M. In addition, the sensor exhibits amazing anti-interference performance against rutin in some flavonoid compounds and can be used to test natural plant samples (buckwheat, Cymbopogon distans , and flos sophorae immaturus). This work has promising applications in the field of environmental and food analysis, and exploring new directions for the application of Mxene-based composites.
研究领域:
材料科学
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分析化学
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纳米技术
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环境科学
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食品分析
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2017
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IF 6.395
Yapeng Tian,Chenhui Yang,Wenxiu Que,Yucheng He,Xiaobin Liu,Yangyang Luo,Xingtian Yin,Ling Bing Kong
Supercapacitor , as an important energy storage device, is a critical component for next generation electric power system , due to its high power density and long cycle life. In this study, a novel electrode material with quasi-core-shell structure, consisting of negatively charged few layer Ti 3 C 2 nanosheets (FL-Ti 3 C 2 ) and positively charged polyethyleneimine as building blocks, has been prepared by using an electrostatic layer-by-layer self-assembly method, with highly conductive Ni foam to be used as the skeleton. The unique quasi-core-shell structured ultrathin Ti 3 C 2 nanosheets provide an excellent electron channel , ion transport channel and large effective contact area, thus leading to a great improvement in electrochemical performance of the material. The specific capacitance of the binder-free FL-Ti 3 C 2 @Ni foam electrodes reaches 370 F g −1 at the scan rate of 2 mV s −1 and a specific capacitance of 117 F g −1 is obtained even at the scan rate of 1000 mV s −1 in the electrolyte of Li 2 SO 4 , indicating a high rate performance. In addition, this electrode shows a long-term cyclic stability with a loss of only 13.7% after 10,000 circles. Furthermore, quantitative analysis has been conducted to ensure the relationship between the capacitive contribution and the rate performance of the as-fabricated electrode.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2024
·
IF 5.4
Yu Han,Li-Hui Sun,Bo Cai,Ming Xia,Chun-Quan Zhu,Dong-Song Li
Large bone defects are a major clinical challenge in bone reconstructive surgery. 3D printing is a powerful technology that enables the manufacture of custom tissue-engineered scaffolds for bone regeneration. Electrical stimulation (ES) is a treatment method for external bone defects that compensates for damaged internal electrical signals and stimulates cell proliferation and differentiation. In this study, we propose a simple, reliable, and versatile strategy to prepare multifunctional 3D printed scaffold combined with ES for bone defect therapy. Firstly, scaffolds composed of polycaprolactone (PCL) and Ti 3 C 2 were prepared by 3D printing technology, and then a stromal cell derived factor 1 (SDF1) containing DOPA tag was loaded onto the scaffold surface. Ti 3 C 2 was selected as the electrode component because of its excellent electrical conductivity. The selection of DOPA-modified SDF-1(DOPA-SDF1) can improve the material binding ability and exert long-term stem cell recruitment function. The results show that prepared 3D printed scaffold (DOPA-SDF1@PCL#Ti 3 C 2 ) has good hydrophilicity, electrical conductivity, antibacterial property, biocompatibility and stem cell recruitment ability. Furthermore, the expression of osteogenic specific genes in scaffold surface cells was significantly increased when pulse ES (PES) treatment was applied. The results of tibial plateau defect repair experiment showed that DOPA-SDF1@PCL#Ti 3 C 2 scaffold can significantly promote the formation of new bone and collagen fibres. When the DOPA-SDF1@PCL#Ti 3 C 2 scaffold was used in combination with PES therapy, the bone defect regeneration rate was further improved. This kind of scaffold could provide a new strategy for promoting the healing of large bone injuries and could expand the application of adjuvant therapy such as PES.
研究领域:
组织工程
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生物材料
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再生医学
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生物医学工程
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骨科
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Optical Materials
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2024
·
IF 8
Po Jin,Enze Zhou,Liangliang Cheng,Wanlu Zheng,Yong Zhao,Shuang Zhai,Ya-nan Zhang
Riboflavin is a common marker of microbial corrosion and can act as an electron shuttle in the solvated state to enhance electron transfer efficiency. In this paper, an in-situ label-free fiber-optic biosensor modified by Ti 3 C 2 -MXene@Square Gold nanoparticles (SGNps) composites and riboflavin kinase is developed, which behaved with high sensitivity for measuring riboflavin. The sensing interface of the sensor is constructed by stepwise assembly of SGNps and riboflavin kinase using Ti 3 C 2 -MXene nanosheets as the supporting substrate. Riboflavin kinase catalyzed the phosphorylation of riboflavin to form flavin mononucleotides in the presence of adenine nucleoside triphosphate and Mg 2+ . Experimental results showed that the sensitivity of riboflavin measurement is 5.61 nm µ m −1 and the limit of detection (LOD) is 115 nmol L −1 (n m ) in the concentration range of 0–2.656 µ m . In situ label-free monitoring of riboflavin in Shewanella , the sensitivity of the sensor in bacterial fragmentation fluid is 53.90 nm/OD within the optical density (OD) of 0–0.175, and the LOD is OD = 0.017. The above results verified the feasibility of the sensor for in situ monitoring of riboflavin in microbial corrosive environments, with ultra-low detection limit and good selectivity, which undoubtedly provided great research value for the application of optical fiber sensors in microbial corrosion monitoring.
研究领域:
生物传感技术
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微生物学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2021
·
IF 7.46
Lei Liu,Yue Yao,Kejian Ma,Changjian Shangguan,Songlong Jiao,Songyang Zhu,Xiaoxuan Xu
Elucidation of the photoelectrochemical (PEC) detection mechanism and exploring highly efficient photoactive materials hold both a challenge and an opportunity to construct high-performance biosensors. In this work, we present a strategy to enhance the charge separation efficiency by fabricating hierarchical Ti 3 C 2 @ReS 2 via the vertical anchoring flaky ReS 2 on the Ti 3 C 2 backbone. According to the experimental results, the Ti 3 C 2 @ReS 2 sample containing 45 wt % of ReS 2 exhibits a 2.48-time promotion in the photocurrent as compared to ReS 2 owing to the synergistic effects of its photoactive and conductive counterparts, indicating its significant advantages in separating photo-induced carriers and suppressing carrier recombination. In essence, the Ti 3 C 2 @ReS 2 Schottky junction formed at the interface can capture the photogenerated electrons generated by ReS 2 , thereby suppressing carrier recombination. As a result, an ultrasensitive PEC detection platform based on the optimized Ti 3 C 2 @ReS 2 can offer a log-linear detection window from 0.1 fM to 1 nM with an estimated detection limit of 2.4 aM (S/N = 3) for cancer-related miRNA-141 without any other amplification.
研究领域:
材料科学
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生物传感器
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癌症研究
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光电化学
✓ 已验证
DOI
高影响因子
Journal of Cleaner Production
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2024
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IF 9.7
Haitao Xu,Ye Chen,Qing Wen,Cunguo Lin,Haiping Gao,Zhenghui Qiu,Liuqingying Yang,Xu Pan
Microbial fuel cells have been proposed as one of the sustainable and potential technologies for treating contaminants and synchronously producing green energy. However, the poor performance of the anode is a major obstacle in the practical application of MFCs. To address this challenge, the rational design of anode materials with enhanced biocatalytic and biocompatible properties has been considered as an effective approach to improve extracellular electron transfer (EET) processes and general MFC performance . Herein, in light of the interaction between the transition metal and exoelectrogens, nickel-cobalt sulfide/Ti 3 C 2 Mxene (NiCo 2 S 4 /Mxene) is prepared by electrostatic assembly, which combined positively charged sea-urchin-like NiCo 2 S 4 with negatively charged Mxene. This not only prevents the stacking of NiCo 2 S 4 and Mxene but also accelerates the EET process by harnessing their biocompatibility and biocatalyst. As expected, the MFC with NiCo 2 S 4 /Mxene harvested higher electricity energy (9.66 ± 0.28 W/m 3 ), significantly exceeded those of plain carbon felt (CF, 1.68 ± 0.13 W/m 3 ), Mxene (4.32 ± 0.20 W/m 3 ) and NiCo 2 S 4 (5.41 ± 0.22 W/m 3 ). Moreover, the microbial community analysis further revealed that the sulfide composite attracts a higher percentage of sulfur-cycling exoelectrogens (Desulfuromonas (24.25%) and Marinobacterium (15.75%)), motivating associated metabolic pathways with more efficient electricity generation processes. Such commendable performances are mainly attributed to the synergistic effect between NiCo 2 S 4 and Mxene, which confers the bioanode with good biocompatibility and biocatalyst for biofilm adhesion and colonization, as well as providing abundant transition metals and sulfide active sites for the EET process. Our finding provides a facile routine for developing sulfide with appropriate modification as anode material for favorable performance of MFC, providing insights for sustainable and cleaner energy production in the future.
研究领域:
环境科学
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生物技术
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
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2022
·
IF 6.14
Jialin Pan,Meiling Zhang,Gege Fu,Li Zhang,Huimei Yu,Xu Yan,Fangmeng Liu,Peng Sun,Xiaoteng Jia,Xiaomin Liu,Geyu Lu
Although the advent of two-dimensional (2D) MXenes has substantially increased the family of 2D materials and diverse applications, the rational design of MXene-based composites and their specialized applications in theranostic biomedicine remain a challenge. In this work, we developed, for the first time, Ti3C2 MXene nanosheets for near-infrared (NIR)-IIb (1530 nm) and magnetic resonance (MR) imaging-guided photothermal therapy. Surface engineering and functionalization of 2D Ti3C2 MXene nanosheets with NaErF4:0.5%Tm@NaLuF4 (NaErF4) nanoparticles result in NaErF4@Ti3C2 composites that emit in the NIR-IIb region at 1530 nm under 808 nm excitation, conferring NIR-IIb imaging guidance and monitoring capabilities during tumor hyperthermia. Due to the inherent magnetic properties of the Er3+ ions, the NaErF4@Ti3C2 composite can also be used for efficient T2-weighted MR imaging. In particular, based on the high photothermal conversion capability (43.62% at 808 nm irradiation) and photothermal stability, the designed composites were further explored for efficient tumor ablation with an inhibition ratio of 92.9%, which was systematically demonstrated both in vitro and in vivo. No significant nanocomposite toxicity was observed at the injected dose. This work not only expands the performance of MXene-based multifunctional nanostructures but also highlights the promise of their versatile applications in cancer therapy.
研究领域:
材料科学
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生物医学工程
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纳米医学
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癌症治疗
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Lan Ding,Senwei Zeng,Weiye Zhang,Chao Guo,Xinyi Chen,Bo Peng,Zhongpeng Lv,Hongjun Zhou,Quan Xu
Solar-driven photocatalytic hydrogen production is considered an effective strategy to mitigate the current energy and environmental challenges. Herein, a function heterostructure photocatalyst of 1D CdS nanorod rationally supported nitrogen-doped Ti3C2 MXene quantum dots (N-MQDs) is successfully constructed via the self-assembly strategy. Impressively, N-MQDs/CdS exhibits superior photocatalytic hydrogen production performance with an efficiency rate of 17094 μmol g–1 h–1, which is 14.79 times higher than pure CdS. The strong oxidizing performance of N-MQDs/CdS also presents an efficient activity for the photodegradation of phenol. The significant enhancement in performance is mainly due to the synergistic effect of the tight interfacial contact and matched energy levels between the highly conductive Ti3C2 MXene quantum dots and 1D CdS nanorod, which greatly accelerates the separation and transfer of photogenerated carriers. Regulating the energy band structure of photocatalysts via multifunctional MXene materials could hopefully motivate further interest in the reasonable design of MXene-semiconductor photocatalytic materials in energy and environmental applications.
研究领域:
材料科学
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化学
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环境科学
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能源科学
✓ 已验证
DOI
高影响因子
Materials
·
2025
·Vol. 18
·期 15
·3533
·
IF 3.2
Juntao Xie,Zihao Zhang,Zhiheng Yu,Bingxin Sun,Yingxin Yang,Guoyong Wang,Cijun Shuai
Piezocatalytic therapy (PCT) is a promising strategy for combating implant-associated infections due to its high tissue penetration depth and non-invasive nature. However, its catalytic efficiency remains limited by inefficient electron–hole separation. In this work, an ultrasound-responsive heterojunction (BiOI/Ti3C2) was fabricated through in situ growth of bismuth iodide oxide on titanium carbide nanosheets. Subsequently, we integrated BiOI/Ti3C2into poly(e-caprolactone) (PCL) scaffolds using selective laser sintering. The synergistic effect between BiOI and Ti3C2significantly facilitated the redistribution of piezo-induced charges under ultrasound irradiation, effectively suppressing electron–hole recombination. Furthermore, abundant oxygen vacancies in BiOI/Ti3C2provide more active sites for piezocatalytic reactions. Therefore, it enables ultrahigh reactive oxygen species (ROS) yields under ultrasound irradiation, achieving eradication rates of 98.87% forEscherichia coli(E. coli) and 98.51% forStaphylococcus aureus(S. aureus) within 10 minutes while maintaining cytocompatibility for potential tissue integration. This study provides a novel strategy for the utilization of ultrasound-responsive heterojunctions in efficient PCT therapy and bone regeneration.
研究领域:
材料科学
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生物医学工程
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纳米技术
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抗菌治疗
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组织工程
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压电催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Feier Niu,Yueyuan Mao,Nana Wang,Zhenying Feng,Junming Chen,Longqiang Ye,Shaoqing Zhang,Zhongchao Bai,Shixue Dou
Two-dimensional (2D) layered materials have promising prospects for Zn-storage due to their flexible and adjustable interlayer architecture. The strong electrostatic interaction and high diffusion energy barrier, however, lead to slow diffusion kinetics of Zn-ions between the 2D interfaces, limiting its widespread application. Herein, Ti 3 C 2 MXene is introduced into the MoS 2 interlayer by the “pillar effect” to assemble a layer-by-layer inter-embedded structure (L-MoS 2 /Ti 3 C 2 ), which provides sufficient diffusion channels for Zn-ions. DFT computations and GITT confirm that the L-MoS 2 /Ti 3 C 2 exhibits superior Zn-ions migration kinetics. Therefore, L-MoS 2 /Ti 3 C 2 shows excellent long-term cycling stability (75.6% capacity retention after 7000 cycles at 15 A g -1 ) and glorious high-rate capability (107 mAh g -1 at 20 A g -1 ). In addition, the practical application of this material is demonstrated by evaluating the performance of L-MoS 2 /Ti 3 C 2 in flexible quasi-solid-state aqueous zinc ion batteries under various extreme bending conditions, which exhibits good stability under 180° during the 4000 cycles with a capacity retention of 80.5% at 2.0 A g -1 .
研究领域:
材料科学
·
电化学
·
纳米能源
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储能技术
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先进电池
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Shuyi Shen,Tao Ke,Dike Fang,Daohui Lin
Visible-light-driven photocatalysts with synergistic persulfate (PS) activation and photocatalysis possess enormous pollution-control potential. Herein, nitrogen and sulphur co-doped TiO 2 @C hybrid (N/S-TiO 2 @C) featuring the complementary visible-light photocatalysis and synergetic PS activation was synthesized by in situ oxidation of Ti 3 C 2 MXene and thereafter co-doping with N and S. Both anatase and rutile phases of TiO 2 were attained in N/S-TiO 2 @C. The decrease of TiO 2 bandgap (about 1.81 eV) and the defect of carbon layer caused by the N and S co-doping in both TiO 2 crystal and carbon layer enabled the synergistic enhancement of PS activation and photocatalysis. Complete degradation and 93.4% mineralization of sulfamethoxazole (SMZ, 10 mg/L) were achieved by dosing PS (2 mM) and N/S-TiO 2 @C (0.4 g/L) under visible light within 30 min. The degradation rate by N/S-TiO 2 @C through PS activation under visible light was 27.9-, 11.1-, and 2.30-fold higher than that by PS, N-TiO 2 @C, and S-TiO 2 @C alone, respectively. Reactive species SO 4 − , 1 O 2 , OH, and O 2 − , especially the former two, were determined dominating the SMZ degradation, and the degradation pathways were illustrated through intermediates identification. Moreover, N/S-TiO 2 @C kept excellent performance in activating PS to degrade SMZ in real water samples. These results indicate that N/S-TiO 2 @C is a stable and promising PS activator under visible light and has a good application potential in organic wastewater treatment.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）