Biosensors-Basel
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2024
·Vol. 14
·期 12
·586
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IF 4.9
Xiaowei Fan,Guping Zhang,Xiaodi Li,Yao Wang,Yi Wang,Shilei Hao,Defang Liu
In this study, we have proposed an electrochemiluminescence (ECL) signal amplification system which is based on two-dimensional (2D) flower-like CdS@Co/Mo-MOF composites as a co-reaction accelerator of the g-C3N4/S2O82−system for ultrasensitive detection of chlorpromazine hydrochloride (CPH). Specifically, the 2D flower-like Co/Mo-MOF with mesoporous alleviated the aggregation of CdS NPs while simultaneously fostering reactant-active site contact and improving the reactant–product transport rate. This allowed the material to act as a novel co-reaction accelerator, speeding up the transformation of the S2O82−into SO4•−and enhancing the cathodic ECL emission of g-C3N4. Moreover, the signal probe which was synthesized by coupling the 2D CdS@Co/Mo-MOF and graphitic carbon nitride (g-C3N4) achieved the generation of SO4•−in situ and reduced energy loss. The results confirmed that the ECL signal was enhanced 6.2-fold and stabilized by CdS@Co/Mo-MOF. Based on the extremely strong quenching effect of chlorpromazine hydrochloride (CPH) on this system, a “signal-off” type sensor was constructed. The sensor demonstrated excellent sensitivity and linear response to CPH concentrations ranging from 1 pmol L−1to 100 μmol L−1, with a low detection limit of 0.4 pmol L−1(S/N = 3).
研究领域:
材料科学
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分析化学
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医学检测
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DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 12
·7178-7186
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IF 10.7
Haiyuan Li,Dingxin Liu
In photocatalysis, catalysts are crucial for effective charge transfer and separation. Using Mo-MOF and CdCo-MOF as precursors, we have designed an effective Cd0.76Cd0.17Mo0.07S (Ethy-CCMS) photocatalyst. We compared the performance of samples prepared in different environments and found that the rod-shaped Ethy-CCMS prepared in an alkaline environment provided by ethylenediamine exhibited the highest photocatalytic hydrogen production activity with an efficiency of 30.14 mmol g−1 h−1, which was 32.2 times higher than that of the CdS prepared under aqueous solution conditions. The solid solution formed can accelerate the separation of photogenerated electrons and avoid the formation of high oxidation power h+ compared to CdS alone. In addition, adding Mo and Co enables these three metals to form bonds with S. The shared S-bond improves the stability of the material and significantly mitigates the photocorrosion phenomenon. This study investigates the role of sulfides derived from Mo-MOF and CdCo-MOF as sustainable and promising co-catalyst candidates to enhance the photocatalytic performance of CdS-based composites.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
·
IF 8.6
Lingchao Xu,Xin An,Junfeng She,Hongping Li,Linhua Zhu,Wenshuai Zhu,Huaming Li,Wei Jiang
Heterogeneous catalysts are usually constructed by immobilizing active species on appropriate supports. However, the dispersibility is difficult to precisely control. In this work, three representative Mo-based MOFs (Mo-MOFs) were constructed by assembling various organic linkers and MoO 3 , where the Mo atoms are homogeneously dispersed due to the coordination. The results illustrated that the obtained Mo-MOF-PI synthesized with 2-propyl imidazole as the ligands exhibited an extremely fast reaction rate, achieving 99.4% sulfur removal of DBT within only 12 min. Compared to other similar catalysts, Mo-MOF-PI showed much higher catalytic activity with a turnover frequency value of 19.2 h −1 . Moreover, it can be reused at least 20 times without a dramatic reduction in catalytic performance. Thus, the as-prepared Mo-MOF catalysts show great potential in large-scale industrial applications.
研究领域:
化学工程
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催化材料
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DOI
高影响因子
Asian Journal of Organic Chemistry
·
2026
·Vol. 15
·期 5
·e70423
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IF 2.3
Zhiqi Song,Xu Jia,Xiulian Wang,Jiaqi Zhang,Liuxue Zhang,Jiaolong Qiao,Lidan Yang
In order to enhance the separation efficiency of charge carriers and thereby increase the rate of photocatalytic hydrogen evolution, a novel heterojunction composite material, Mo/Co-MOF@g-C 3 N 4 , was synthesized by loading flower-like Mo/Co-MOF onto two-dimensional ultrathin g-C 3 N 4 nanosheets through the regulation of the energy band alignment position of the materials. The construction of this heterojunction was designed to modulate the carrier transfer pathway, thereby addressing the poor adsorption capacity and sluggish migration of photogenerated electron–hole pairs in photocatalytic processes. This modification led to a significant enhancement in photocatalytic hydrogen evolution efficiency. Experimental results demonstrated a remarkable hydrogen evolution rate of 2.96 mmol·g − 1 ·h − 1 for the composite material. This performance represents an 8-fold enhancement compared to the rate of 0.37 mmol·g − 1 ·h − 1 observed for the pristine ultrathin g-C 3 N 4 . Furthermore, the composite exhibited excellent stability, maintaining its high activity without significant degradation over multiple cyclic testing runs. The Mo/Co-MOF@g-C 3 N 4 composite demonstrates both high hydrogen production yield and robust stability in photocatalytic water splitting reactions. This work presents a promising and novel candidate for future research in photocatalysts for hydrogen generation.
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Jiahe Li,Weihong Wu,Rui Duan,Xue Bi,Weihua Meng,Jianzhong Xu,Hongqiang Qu
A molybdenum-based metal organic framework (Mo-MOF) and graphene oxide (GO) hybrid functionalized with boron-containing ionic liquid ([BMIM]BF 4 ) (GMB) was reported to effectively improve the fire safety and mechanical property of epoxy resin (EP). When 3 wt% GMB was added, the CO production rate, peak heat release rate and peak smoke release rate of EP composites decreased by 55.88%, 52.10% and 40.12%, respectively. The flame retardant mechanism was the combination of catalytic carbonization ([BMIM]BF 4 and Mo-MOF), physical barrier effect (GO) and gas phase dilution (H 2 O and NH 3 in gas production). Meanwhile, the incorporation of [BMIM]BF 4 endowed EP composites with excellent mechanical properties.
研究领域:
材料科学
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化学工程
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消防安全工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）