INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Shaojun Jia,Jin Huang,Yuqing Wang,Wu Chen,Yao Jiang,Peng Cui
Nonaqueous liquid–liquid CO2 phase change absorbents (CPCAs) have garnered significant attention due to their potential for efficient and energy-saving CO2 capture in the amine-scrubbing process. This study introduces a novel nonaqueous CPCA that utilizes aminoethylethanolamine (AEEA) as the main amine absorbent, dimethyl sulfoxide (DMSO) as the organic solvent, and N-ethylmorpholine (NEM) as the phase separator. To mitigate the high viscosity of the rich phase in CPCA, diethanolamine (DEA) is introduced as a viscosity regulator, which reduces the viscosity by 79.3% by weakening the intermolecular hydrogen bonding in the CO2 products. Notably, the optimized CPCA of A20E10D40N30 demonstrates a high cyclic capacity of 2.94 mol·kg–1 and a low regeneration energy consumption of 1.79 GJ·t–1 of CO2. Overall, the efficient CO2 capture performance, low regeneration energy consumption, and minimal corrosivity make this CPCA a promising candidate for industrial CO2 capture applications.
研究领域:
化学工程
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环境科学
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材料科学
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能源技术
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产品关联
DOI
高影响因子
Journal of Water Process Engineering
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2025
·
IF 6.7
Renqing Yang,Xiaowei Huang,Zeyan Liu,Zhihua Li,Xinai Zhang,Zhecong Yuan,Shujie Gao,Jiyong Shi,Xiaobo Zou
Organophosphorus pesticides pose a serious threat to the environment, necessitating the development of efficient degradation strategies. This study introduces a bimetallic Ce Zr nanozyme engineered through synergistic catalysis. The nanozyme structure was designed with high specific surface area and abundant active sites, optimized for catalytic efficiency. Molecular docking analysis revealed that the bimetallic nanostructure interacts with paraoxon (a model organophosphorus pesticide) through six hydrogen-bonding sites (bond lengths: 2.6–3.2 Å), demonstrating significantly stronger binding than monometallic analogs (five sites, bond lengths: 2.8–3.2 Å). Benefiting from the synergistic effect of Ce 4+ and Zr 4+ nodes, the nanozyme rapidly catalyzes the hydrolysis of paraoxon into less-toxicity p-nitrophenol, achieving degradation of 120 μM paraoxon within 25 min. The nanozyme exhibits excellent stability (>88 % activity retained after 20 days at room temperature) and recyclability (>90 % activity retained after five cycles). This approach offers an efficient strategy for degrading persistent organophosphorus pollutants, with potential for scalable environmental remediation.
研究领域:
环境科学
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纳米技术
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催化
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材料化学
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污染修复
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
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2025
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IF 9.8
Mai Luo,Yao Peng,Jihai Cai,Tiantian Jiang,Sheng Gong,Shiyao Hua,Ting Wang,Sijia Wu,Shuangpeng Wang,Jinchao Wei,Peng Li
Pesticides play a crucial role in crop production. However, they also pose significant pollution and health risks. This study presents a novel dual-mode cascade strategy for detecting pesticide residues, addressing the growing demand for improved safety control. The proposed method utilizes a bifunctional metal-organic framework nanozyme (BMFN) with both fluorescence and biomimetic capabilities, enabling efficient analysis of pesticide residues. The bifunctionalities of BMFN is achieved by modulating Ce 3+ /Ce 4+ valence states and adjusting reaction conditions. The dual functionality is activated by changing the solvent pH, and its mechanism is thoroughly validated. Exposure to methyl paraoxon (MP) triggers a cascade reaction that generates both fluorescence and colorimetric signals, with detection limits of 0.2 and 0.5 μM, respectively. The effectiveness of the dual-mode strategy is demonstrated in complex matrices. Overall, the integrated system highlights the exceptional performance of the bifunctional nanozyme in chemical sensing and demonstrates the success of dual-mode cascade analytical approaches.
研究领域:
分析化学
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纳米技术
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环境科学
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生物传感器
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材料科学
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Xuejiao Wang,Yu-Xuan Zheng,Chen Ding,Ming Zhang,Zhong-Zhen Yu,Shaobin Wang,Dongzhi Yang
Safe and efficient protection against chemical warfare agents is of strategic importance in human society due to their lethal damage to living organisms. Current protective materials are confronted with defects of incomplete elimination, slow degradation, and potential secondary toxicity during exposure to chemical warfare agents in real environments. Herein, asymmetric nanofiber membranes (ANMs) in side-by-side heterostructure are constructed by a scalable dual-channel electrospinning strategy with a polyvinyl alcohol skeleton, hygroscopic LiCl, amine-rich polyethyleneimine as a non-volatile base, and defective UiO-66-NH 2 nanoparticles as the catalyst for simultaneous moisture adsorption and catalytic hydrolysis of a nerve agent simulant of dimethyl 4-nitrophenyl phosphate (DMNP) in a wide range of relative humidity. The ANMs exhibit fast hydration, effective transport, and high-density storage of water molecules with a high moisture adsorption capacity of 1.74 g g −1 at 90% relative humidity. The side-by-side heterostructure of ANM shortens the mass transport path and accelerates the catalytic hydrolysis of DMNP with an initial half-life of ≈0.56 h and conversion efficiency of more than 95%. The synergistic hygroscopic and catalytic effect of the asymmetric nanofiber membrane promotes the detoxification of DMNP in the atmospheric environment, providing a smart strategy for materials design against chemical warfare agents.
研究领域:
材料科学
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化学工程
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环境科学
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产品关联
DOI
高影响因子
Talanta Open
·
2024
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IF 4.1
Wen-Xuan Jia,Ming-Ming Tao,Xin-Yu Wang,Yan-Feng Huang,Ying Li
To address the limitations of natural enzymes, more and more artificial enzymes have been developed. As the most appropriate candidate, metal organic frameworks (MOFs) and MOFs-based derivatives have generated extensive interest due to their remarkable properties and potential applications in enzymes mimicry. In this work, Ce/Cu mixed metal oxides-carbon composite (CeCuO x /C) was synthesized through a simple oxidation method with bimetallic MOFs CeCu-BTC as precursors. It was found that the prepared CeCuO x /C possess four different enzyme-like activities, including peroxidase, oxidase, laccase and phosphatase mimetic activities. The kinetics parameters and potential influence factors of enzyme-like activities were studied and CeCuO x /C exhibited high catalytic activity, excellent stability, and reusability. Additionally, a cysteine detecting method was established via oxidase-like activity of CeCuO x /C. The linear response to the cysteine was in the range of 50 to 900 μM, and the limit of detection was 3.24 μM. The spiking recoveries were in the range 93.5–100.2 % for cysteine in artificial human urine samples and the relative standard deviations were found within the ranges of 1.2–2.9 %. This work presents a new approach for the design of multi-enzyme mimics and develops the potential of CeCuO x /C for biological sensing.
研究领域:
生物化学
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材料科学
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分析化学
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产品关联
DOI
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 7
·559
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IF 4.4
Yuyang Liu,Shiyin Zhao,Yujiao Li,Jian Huang,Xuheng Yang,Jianfang Wang,Cheng-an Tao
Chemical warfare agents (CWAs) refer to toxic chemical substances used in warfare. Recently, CWAs have been a critical threat for public safety due to their high toxicity. Metal–organic frameworks have exhibited great potential in protecting against CWAs due to their high crystallinity, stable structure, large specific surface area, high porosity, and adjustable structure. However, the metal clusters of most reported MOFs might be highly consumed when applied in CWA hydrolysis. Herein, we fabricated a two-dimensional piezoresponsive UiO-66-F4and subjected it to CWA simulant dimethyl-4-nitrophenyl phosphate (DMNP) detoxification under sonic conditions. The results show that sonication can effectively enhance the removal performance under optimal conditions; the reaction rate constantkwas upgraded 45% by sonication. Moreover, the first-principle calculation revealed that the band gap could be further widened with the application of mechanical stress, which was beneficial for the generation of1O2, thus further upgrading the detoxification performance toward DMNP. This work demonstrated that mechanical vibration could be introduced to CWA protection, but promising applications are rarely reported.
研究领域:
材料科学
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化学工程
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环境科学
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纳米技术
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产品关联
DOI
PubMed
高影响因子
NUCLEIC ACIDS RESEARCH
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2020
·Vol. 48
·期 17
·9986-9994
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IF 11.502
Sun Yuhuan,Zhao Chuanqi,Cui Tingting,Qin Hongshuang,Niu Jingsheng,Ren Jinsong,Qu Xiaogang
Telomeric DNA, whose length homeostasis is closely correlated with immortality of cancer cells, is regarded as a molecular clock for cellular lifespan. Regarding the capacity in forming G-quadruplex, G-rich 3′-overhang (G-overhang) has been considered as an attractive anticancer target. However, it is still challenging to precisely target telomeric G-overhang with current ligands because of the polymorphism of G-quadruplexes in cells. Herein, we construct a telomeric G-overhang-specific near-infrared-traceable DNA nano-hydrolase, which is composed of four parts: (i) dexamethasone for targeting cell nuclei; (ii) complementary DNA for hybridizing with G-overhang; (iii) multinuclear Ce(IV) complexes for hydrolyzing G-overhang; and (iv) upconversion nanoparticles for real-time tracking. The multivalent targeted DNA nano-hydrolase can be traced to precisely digest telomeric G-overhang, which contributes to telomeric DNA shortening and thereby causes cell aging and apoptosis. The anticancer treatment is further proved by in vivo studies. In this way, this design provides a telomeric G-overhang-specific eradication strategy based on a non-G-quadruplex targeting manner.
研究领域:
生物技术
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分子生物学
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癌症研究
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Linna Song,Tianyu Zhao,Dongzhi Yang,Xuejiao Wang,Xinmin Hao,Yaxin Liu,Shiyi Zhang,Zhong-Zhen Yu
Lightweight and wearable fabrics with rapid self-detoxification functions are highly desired to resist chemical warfare agents (CWAs). Metal organic frameworks (MOFs) with high specific surface area and customizability are singularly attractive because of their ability to effectively capture and catalytically degrade CWAs. Herein, photothermal graphene-based nanocomposite fabrics are designed by wet-spinning and chemical reduction of graphene oxide fibers followed by in situ growth of UiO-66-NH 2 . The flexible graphene fabrics decorated with UiO-66-NH 2 nanoparticles exhibit an ultrafast photothermal catalytic decontamination of dimethyl 4-nitrophenyl phosphate (DMNP), a typical simulant of CWAs. The half-life of the degradation reaction decreases from 3.4 to 1.6 min under simulated solar light irradiation, a significant gain over the values reported in the literature. Furthermore, DMNP can be degraded in 20 min by the graphene/UiO-66-NH 2 fabric, and even after 5 cycles the degradation efficiency still retains more than 92 %. More importantly, the photothermal conversion of graphene and its instantaneous heat transfer to the UiO-66-NH 2 catalyst effectively accelerate the catalytic reaction kinetics, achieving the fast detoxification of DMNP. The combination of catalytic degradation of MOFs with photothermal conversion effect of graphene makes the lightweight and flexible fabrics promising for protection against CWAs and other pollutants.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Xuejiao Wang,Jing Yang,Ming Zhang,Qian Hu,Bai-Xue Li,Jin Qu,Zhong-Zhen Yu,Dongzhi Yang
We design a spontaneously super-hygroscopic alkaline microreactor by photoinduced integration of Zr-MOF catalyst and alkaline poly(dimethylaminoethyl acrylate) onto LiCl-salinized poly(N-isopropylacrylamide) gel, generating a microenvironment with non-volatile polymeric base and non-bulk water for detoxification of a typical nerve agent simulant, dimethyl 4-nitrophenyl phosphate (DMNP), in atmospheric environments. The super-hygroscopic gel with directional microchannels facilitates the absorption, transport and storage of water under different humidities, and exhibits fast hygroscopic efficiency with a high moisture absorption capacity of 6.4 g g −1 . The integrated microreactor achieves simultaneous water uptake and catalytic hydrolysis of DMNP in an atmospheric environment with an initial half-life of ∼1.9 h and a final conversion of 95.5%, which is attributed to the synergistic catalytic microenvironment of the exposed Zr-MOF catalyst, the polymeric base, and the water from moist air. This work provides a feasible strategy for designing spontaneously hygroscopic microreactors for detoxifying nerve agent simulants in atmospheric environments.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
Science China-Materials
·
2023
·Vol. 66
·期 6
·2475-2482
·
IF 8.1
Cai Chunqi,Chen Qingqing,Su Hongyan,Huang Pengcheng,Mao Junjie,Wu Fang-Ying
The detoxification of nerve agents, a class of extremely toxic chemical warfare agents, is urgently needed because they have remained a threat to humanity. To date, zirconium-based metal-organic frameworks (Zr-MOFs) are the most popular catalysts in this realm. However, it is still essential to develop new and efficient catalysts based on Zr-MOFs to achieve more rapid hydrolysis. Herein, we report that the single-atom catalyst (SAC) with Cu single atoms on a UiO-66-NH 2 support (Cu@UiO-66-NH 2 ) could significantly boost the degradation of the nerve agent simulant. Compared with the pristine UiO-66-NH 2 , this SAC exhibited remarkable catalytic activity with a half-life for hydrolysis of ∼2 min and better reusability in cyclic experiments. Both experimental and theoretical studies suggest that the atomically dispersed Cu species anchored to the amino groups rather than to the Zr 6 node of UiO-66-NH 2 acted as the catalytic active sites, leading to favorable binding geometries with the substrate and the product. A catalytic mechanism on the SAC different from that generally considered on the pristine Zr-MOFs was thus presented to elucidate the enhanced catalytic efficiency.
研究领域:
化学
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材料科学
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环境科学
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产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2023
·
IF 5.9
Fan Liu,Wenbo Li,Junjie Yang,Dongxiao Ji,Yuan Liang,Hengtao Liang,Xiang Li,Pengju Han,Zupei Yuan,Jianxin He,Weili Shao
Highly efficient and reusable protective materials for chemical warfare agents (CWAs) are in high demand. Here, we used a surface modification technique to develop a material that provides chemical protection. Using an electrospun polyacrylonitrile (PAN) nanofiber membrane as the substrate, we modified the surface of the nanofiber with dopamine hydrochloride, which self-polymerized to form a polydopamine (PDA) surface layer, onto which we loaded metal–organic framework (MOF-808) particles. The presence of PDA on the surface of the PAN nanofibers significantly increased the breaking strength (2-fold increase) and elongation (9-fold increase) of the nanofiber membrane. Moreover, the PDA functionalities formed coordination sites to trigger the in situ growth of MOF-808 particles on the surface of the nanofiber membrane, thereby considerably increasing the growth rate and loading capacity. The surface of the nanofiber membrane was completely covered with MOF-808 particles following solvothermal treatment for 16 h. The MOF-808/PAN/PDA composite membrane could rapidly degrade 99.9% of dimethyl-4-nitrophenyl phosphate to p-nitrophenol within 8 min. After the membrane was used several times, the conversion rate stabilized at 95.9%, indicating that the MOF-808/PAN/PDA composite membrane has significant potential for application as protective clothing for CWAs.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2023
·
IF 4.8
Shiyi Chen,Feiyang Tian,Juan Peng,Yan Meng,Yu Wang,Xiaogang He,Qian Wang,Ganghui Chu
Chemical warfare agents, especially organophosphorus warfare agents are a variety of various chemical substances employed in warfare that can massively cause damage to the organism even death. The partial catalytic function of Universitetet i Oslo-66 (UiO-66, a zirconium-based metal–organic framework) produced via de novo synthesis is similar to calf intestinal alkaline phosphatase (CIAP, EC 3.1.3.1) and has a lower usage cost, is expected to be a mimetic enzyme for hydrolyzing organophosphorus warfare agents due to the fact that it has lattice defects. 0.1–5.6 mL of acetic acid was added as a regulator to form different lattice defects. Typically, mimetic enzyme activity tests often require expensive reagents as substrates, and the experiment processes are time-consuming and inconvenient. As a result, a novel approach based on near-infrared spectroscopy (NIRs) was developed in this research for predicting UiO-66 mimetic enzyme activity. p -Nitrophenyl phosphate disodium salt ( p NPP) was selected as a lower toxic organophosphorus warfare agent to conduct the subsequent simulant research. The absorbance of the mimetic enzyme catalytic system was evaluated using Ultraviolet–Visible (UV–Vis) spectroscopy to investigate the amount of its activity and compare it with CIAP activity. The synthesized samples’ enzyme activities ranged from 1.91 to 6.67 U/g and their catalytic costs ranged from 0.65 to 2.26 CNY. The powdered samples' near-infrared spectra were obtained. The sample’s enzyme activity data were linked with each sample’s original NIR spectra to establish the NIR model. A partial least squares (PLS) model of mimetic enzyme activity was developed by coupling spectral preprocessing with a variable screening technique. The root-mean-square error of cross-validation (RMSECV), the correlation coefficient of validation set (R) value, and the ratio of prediction to deviation (RPD) value were employed as assessment model indicators. The near-infrared spectrum model was developed by merging the best 2nd derivative spectral preprocessing with the Competitive Adaptive Reweighted Sampling (CARS) variable screening method. This model's RMSECV was 0.41 U/g, the correlation coefficient of calibration set (R_cv) value was 0.916, the root-mean-square error of prediction (RMSEP) set was 0.52 U/g, R was 0.948, and RPD was 2.51. As a result, the established model could be implemented to quantify the activity of UiO-66 quickly by including more variations of de novo -synthesized samples. The prediction method is simple, rapid, low cost and adaptable to be the theoretical and practical basis for further studying other interdisciplinary research work in biomimetic enzymology and spectroscopy.
研究领域:
化学
·
材料科学
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酶学
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光谱学
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毒理学
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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）