ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Huihui Gao,Xiankun Wu,Jingjing Fan,Zhongkai Wang
Replacing traditional petroleum-based plastics with degradable biobased plastics has become one of the significant strategies to address energy shortages and environmental issues. Nevertheless, it still remains a scientific challenge to develop biobased plastics with ultrastrong mechanical strength and superior recyclability. Here, the catalytic conversion of Sapium sebiferum oil (SSO) to 9,10-dihydroxy-octadecanoic acid (C18-OH) monomer is first designed. Simultaneously, a novel biobased plastic, namely, PEA, is fabricated by a dual network through one-pot melt-polymerization, which exhibits mechanical performance higher than most commercial plastics and other reported PEAs. Benefiting from the synergy of the dynamic nature of H-bonds and hydroxy-ester bonds as well as the flexibility of the long aliphatic chain, the PEAs exhibit exceptional repairability and reprocessability. More importantly, PEAs can be efficiently degraded into the original reagents and the cross-linked materials can be reconstructed by the recovered monomers without losing the pristine performance. Additionally, abundant polar groups provide excellent adhesion properties for PEAs with a high shear strength of 10.29 ± 0.21 MPa. This work unveils an elegant and efficient synthetic route to fabricate impressively robust and chemically recyclable materials as promising alternatives to conventional plastics.
研究领域:
材料科学
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环境科学
·
有机化学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Peng Wang,Chengming Yu,Jiale Huang,Zhudan Jiang,Xinyu Jiang,Shanglin Xiang,Dongyu Cai
Developing an efficient photocatalyst with good recyclability is vital for the sustainability and affordability of photocatalytic technology in the treatment of wastewater. This work demonstrates a facile route for realizing robust TiO 2 @Ti 3 C 2 T x fibers with exceptional photocatalytic capability and recyclability. In this route, an alkalization/de-alkalization process was developed to treat a concentrated Ti 3 C 2 T x suspension known as MXene sediment, followed by a wet spinning process. The pretreatment of Ti 3 C 2 T x suspensions promoted the expansion of the d-spacing of stacked Ti 3 C 2 T x layers in the microfibers. It was found that this was beneficial for increasing the population of TiO 2 nanoparticles grown from Ti 3 C 2 T x layers. The calcination of these fibers was systematically investigated to optimize the photocatalytic performance of TiO 2 @Ti 3 C 2 T x fibers. Thanks to the TiO 2 nanoparticles, the resulting fibrous photocatalysts not only enabled the fast degradation of RhB dyes but also exhibited excellent recoverability from water.
研究领域:
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
Journal of Environmental Sciences
·
2017
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IF 2.865
Yingjie Li,Wenfeng Li,Qingnan Liu,Hong Meng,Yingzhou Lu,Chunxi Li
For the first time, a series of alkynyl carbon materials (ACMs) were prepared via the mechanochemical reaction of CaC 2 with six polyhalogenated precursors, namely CCl 4 , C 2 Cl 6 , C 2 Cl 4 , C 6 Cl 6 , C 6 Br 6 , and C 14 H 4 Br 10 (ACM-1, ACM-2, ACM-3, ACM-4, ACM-5, and ACM-6, respectively) and used for the adsorptive removal of mercury from aqueous solutions. Based on preliminary investigations, the adsorption of mercury on ACM-5 was studied in depth. Specifically, the effect of pH on mercury adsorptivity , adsorption kinetics, thermodynamics, isotherms, and recyclability was studied. The adsorptivity of mercury on ACMs was found to be closely related to the hydrocarbon precursor, specific surface area of sorbent , and the alkynyl content. ACM-5 showed the best performance and is among the best raw carbonaceous sorbents reported so far, with a Langmuir saturated adsorption capacity of 191.9 mg g − 1 . The promising mercury adsorption performance mainly arises from the strong Lewis soft acid–soft base interactions between the alkynyl groups and mercury ions. The adsorption isotherms could be satisfactorily correlated with the Langmuir equation. The results show that the ACMs can be used as efficient sorbents for the removal of mercury and may also be useful for the adsorption of other heavy metals.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Junzheng Chen,Xikun Zhang,Xue Lv,Shurui Yi,Di Fang
In this study, the dispersion behavior of MoS₂ in ionic liquids (ILs) with varying alkyl chain lengths was the primary focus of investigation, followed by the design of a novel PAM/SMA/CMC/PDA@MoS 2 hydrogel. By optimizing the concentrations of CMC and PDA@MoS 2 , a bifunctional hydrogel with both sensing and catalytic functions was successfully developed. Mechanical tests revealed that the PAM/SMA/CMC 0.06 /0.09PDA@MoS 2 hydrogel exhibited exceptional mechanical properties, with stress (505.24 kPa), strain (2333.34 %), elastic modulus (20.17 kPa), and toughness (3990.97 kJ/m 3 ). Furthermore, the hydrogel demonstrated superior sensing performance, characterized by high sensitivity (GF = 7.67) and a rapid response time (148 ms) across a wide strain range. These properties enable precise monitoring of physiological movements, coupled with long-term cyclic stability, positioning it as a versatile material for sensors and electrodes. Subsequently, in situ stabilized silver nanoparticles (Ag NPs) were used as a template for the catalytic degradation of methylene blue (MB) using discarded human motion monitoring hydrogels. The degradation followed first-order kinetics (k = 0.54 min −1 at 25 °C) with 85 % efficiency sustained over 10 cycles, demonstrating significant stability and recyclability. This strategy integrates sensor recycling with Ag NPs based dye degradation, addressing environmental concerns and highlighting its potential in sustainable applications.
研究领域:
材料科学
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环境科学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
POLYMER
·
2025
·
IF 4.5
Bowen Tan,Liming Tao,Shoubing Chen,Zenghui Yang,Qihua Wang,Lihe Guo,Zhangzhang Tang,Rui Yang,Qian Dou,Xinrui Zhang,Yuqi Li,Tingmei Wang
Developing polyurethane that can withstand ultra-low temperatures is key to expanding its applications in low-temperature environments. Spider silk demonstrates high toughness in low-temperature environments due to its hierarchical hydrogen bonds network. Inspired by spider silk, a polyurethane elastomer (SPU-DTP x ) with exceptional strength, superior toughness, low-temperature resistance, and recyclability were synthesized. The dense hydrogen bonds in the urethane bonds lead to curled and entangled molecular chains at low temperature. SPU-DTP 0.8 achieves a maximum tensile strength of 86.71 MPa, maximum elongation at break reaching 226.93 % at −90 °C, with toughness of SPU-DTP 0.8 of 109.98 MJ m −3 , only 37.27 % lower than that at 20 °C. Utilizing hydrogen bonds and molecular chain migration, SPU-DTP 0.8 demonstrates excellent recyclability, maintaining key mechanical properties after reprocessing. This elastomer could endure extreme supercold temperatures and offer considerable promise for creating elastic devices, flexible spacecraft, and soft robots designed for use in extremely low-temperature environments like outer space or polar areas.
研究领域:
材料科学
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生物仿生学
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
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2018
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IF 4.92
Chunwang Yi,Jingkai Liu,Deqian Meng,Jing Lv,Xiaomin Zhang,You shu,Shengpei Su,Jin Zhu
A chitin-fastening Ag@AgCl composite film with decontamination properties was successfully prepared by one-step coagulation method of the chitin- LiCl/Dimethyl Acetamide (DMAc) solution with AgNO 3 . In this process, AgCl was formed in a chitin solution with the addition of AgNO 3 solution, and with the help of excess Cl − a solution of AgCl was formed. AgCl nanocrystals embedded on the surface of chitin were obtained after the solution was put into coagulation bath . The AgCl nano-crystals embedded on the surface of chitin film could be partly transformed into the Ag@AgCl by appropriate visible-light irradiation in the air. In order to explore the morphology and the formation mechanism of the composites, the well-prepared films were characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), X-ray photo-electron spectroscopy (XPS), thermogravimetric analysis (TGA), ultraviolet spectro-photometry and UV–visible absorption spectrum . The decontamination ability and recyclability of composite film was evaluated by the degradation rate of methyl orange (MO) in recycling process. By comparison, the Ag@AgCl fastened in chitin matrix was more stable than fastened by cellulose matrix. Its photo-degradation efficiency could be still retained up to 95% after 5-cycle testing. Meanwhile, the composite film could be also kept excellent mechanical properties. This work provided a simple pathway to construct the functional chitin film which could be applied as a kind of stable recycling decontamination materials.
研究领域:
材料科学
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环境科学
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生物化学
✓ 已验证
DOI
高影响因子
ENERGY CONVERSION AND MANAGEMENT
·
2024
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IF 9.9
Muhammad Usman,Faiqa Nadeem,Hina Ramzan,Muneeb ur Rahman,Fuhua Shen,Muhammad Shahzaib,Reeta Rani Singhania,Anil Kumar Patel,Zhiping Zhang,Shengyong Liu,Nadeem Tahir
The interaction between the photo-induced charges from photo nanocatalysts (PNCs) and biohydrogen production strains plays a key role in controlling the metabolism mechanism in fermentative biohydrogen production from lignocellulosic biomass wastes. Thus, in the present study, two strains of Rhodopseudomonas palustris (PNSB) and a mixed consortium of HAU-M1 were evaluated for their biohydrogen production potential from corn stover (CS), whereas metabolism was catalyzed through photo-induced electrons from magnetic PNCs of cobalt ferrite (CoFe 2 O 4 ). The threshold concentration of CoFe 2 O 4 (400 mg/L) produced 428.62 mL and 373.30 mL biohydrogen in PNSB and HAU-M1, which is 129.0 % and 81.12 % higher as compared to respective control groups (CGs), respectively. The presence of PNCs provides the photo-induced electrons, which catalyze the metabolic processes as butyric acid increases by 96.29 % and 94.87 % in PNSB and HAU-M1, respectively, hence increasing hydrogen production. The results were supported by microbial community investigation, which showed that the incorporation of the appropriate concentration of PNCs effectively changes the bacterial community dynamics and diversifies the phyla ( Firmicutes , Proteobacteria , and Bacteroidetes ) and hydrogen-producing genus Clostridium . The recovered yield of CoFe 2 O 4 PNCs from PNSB and HAU-M1 fermentative mediums in three consecutive cycles was (90.87 %, 88.94 %), (80.25 %, 72.25 %), and (69.75 %, 60.80 %) respectively showing potential for recycling catalysts during the fermentation process. Thus, selecting the right photocatalysts and strain can affect metabolism and biohydrogen production, while recyclability reduces environmental leaching.
研究领域:
微生物学
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环境科学
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能源生物学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 48
·36063-36072
·
IF 3.9
Xuebin Hou,Wei Chen,Meihong Fan,Chen Shi
Chitosan (CS) is regarded as a promising sorbent due to its biodegradability, wide availability, easy processing, and multiple active groups. In this work, CS-based porous fibers (ZIF-n@CS) consisting of CS and zeolitic imidazolate frameworks (ZIFs) were fabricated through wet spinning and self-assembly methods. This combination effectively utilizes the dual advantages of CS and ZIFs, which effectively remove dyes from water and exhibit excellent recyclability. In addition, the adsorption mechanism of the adsorbent was explored through the analysis of adsorption kinetics, thermodynamics, isotherms, and chemical characterization after adsorption. This work provides an operable and universal strategy for the efficient adsorption of dyes, promoting the further promotion and application of MOFs and CS materials.
研究领域:
材料科学
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环境科学
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生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD SCIENCE
·
2024
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IF 3.2
Mibin Lin,Jia Sha,Zhonghao Zhu,Penghui Ye,Kai Zhao,Kaijun Xiao
Metal–organic frameworks (MOFs) have great potential for the adsorption of minor molecular alcohols in the vapor phase. However, the drawbacks of powdered MOFs, including low recyclability and problematic separation, limit their application in fermented wine. Chitosan (CS) is a low-cost, eco-friendly, moldable matrix used in the food industry. In this study, a novel CS@ZIF-8 adsorbent with excellent microporous surface area was successfully synthesized by incorporating hydrophobic ZIF-8 into CS. The results showed that CS@ZIF-8 beads had a high adsorption affinity for methanol at a Zn 2+ /2-methylimidazole molar ratio of 1:5. The adsorption mechanism of methanol on CS@ZIF-8 beads was systematically studied by X-ray photoelectron spectroscopy, isotherms, and kinetics. The Langmuir model calculated the maximum adsorption of methanol to 56.8 mg/g. Adsorption kinetics are consistent with pseudo-second-order models. Furthermore, CS@ZIF-8 beads presented excellent recyclability for removing methanol for five consecutive cycles. It could treat 60 bed volumes of Chinese yellow wine in column filtration experiments to make the concentration below 50 mg/L. In summary, the highly efficient CS@ZIF-8 adsorbent has great potential for methanol adsorption from fermented wines. Practical Application Methanol will exhibit adverse symptoms such as weakness and headaches after it is ingested. Therefore, methanol control is an important safety factor in the production of fermented wine. The adsorption method is recognized as a widely used technique due to its high efficiency and selectivity. The CS@ZIF-8 adsorbent synthesized in this paper provides a new idea for methanol removal.
研究领域:
食品科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Lin Wang,Manman Jia,Hui Jiao,Shukang Ti,Dongmei Yue
Nitrile Butadiene Rubber (NBR) is widely used in aerospace, petroleum exploration, auto parts, and other fields because of its excellent performance. Nevertheless, NBR usually needs to be crosslinked with sulfur or peroxide, which restricts the tensile performance and recyclability of NBR. Herein, a novel strategy was developed to address these issues by introducing dynamic urea bonds into the main chain using a simple, catalyst-free one-pot method. The presence of urea bonds not only provides a large number of hydrogen bonding sites between the molecular chains but also exhibits the remarkable microphase separation properties of thermoplastic elastomers. This approach endows NBR with enhanced dynamic characteristics and significant recyclability. As a result, the as-synthesized multifunctional NBR elastomer (I–A0.5–P0.5) exhibits excellent tensile strength (19.9 MPa), toughness (93.7 MJ m−3), low glass transition temperature (−52 °C), and low compression cold resistance coefficient (0.15 at −55 °C), which are comparable to those of conventionally covalently crosslinked NBR. Importantly, the elastomer can retain its mechanical robustness, chemical structure, and thermal stability after multiple rounds of recycling (after five times of recycling, with a recovery of more than 81%). To broaden the application of NBR products, I–A0.5–P0.5 was crosslinked with sulfur, and its performance was compared with NBR vulcanizates of different acrylonitrile contents. It shows excellent oil resistance and low temperature resistance. Surprisingly, it can also possess the ability to be reprocessed multiple times. This new multifunctional thermoplastic NBR elastomer is of great significance in solving the problem of difficult recycling of traditional NBR and is expected to replace traditional covalently cross-linked NBR.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2016
·
IF 3.698
Yaolan Niu,Diwen Ying,Kan Li,Yalin Wang,Jinping Jia
Functional PET fiber (PET–AA–CS) was prepared by oxygen–plasma pretreatment and grafting of acrylic acid (AA) and low–molecular–weight chitosan (LMCS) on the polyethylene glycol terephthalate (PET) substrate. This adsorbent was targeted for quick removal of metal ion in river pollutions with an easy recycling of the fiber after emergency processing. The fabricated PET–AA–CS was characterized by the scanning electron microscope (SEM), contact angle, fourier transform infrared (FTIR) spectra and X–ray photoelectron spectroscopy (XPS) to look into its morphology, surface functional groups, and adsorption mechanism of copper ions from the aqueous solution. The overall adsorption process of copper ions on the PET–AA–CS was pH–dependent with an optimal pH value of 5.0, at which a maximum capacity of 68.97 mg g −1 was obtained. The result of fitting also shows that adsorption process follows the Langmuir isotherm and pseudo–second–order model. Moreover, the material shows good stability during 5 cycles of adsorption and desorption, and also shows no significant effect of co–existing ions including Ca 2+ , Mg 2+ , K + , Cl − , and et al. In general, PET–AA–CS developed in this study shows significant benefit of eco–friend and cost-efficiency for fast removal of copper ions in potential river metal pollutions comparing with traditional adsorbents.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
·
2021
·
IF 6.558
Yu-Fei Zhong,Guang-Ming Bao,Yi-Fan Xia,Xiong-Xin Peng,Jin-Feng Peng,Jia-Xin He,Shuai Lin,Lintao Zeng,Qing Fan,Wei Xiao,Hou-Qun Yuan
An europium functionalized metal-organic fluorescent probe , Eu 3+ @UiO-66-FDC was constructed by post-synthetic modification through coordination interactions. Eu 3+ @UiO-66-FDC displayed high selectivity and sensitivity toward Tryptophan (Trp) among all the 20 natural amino acids and other general compounds in food and biological samples, with a wide linear concentration range (0–1000 μM), low detection limit (0.29 μM), and a rapid response (<1 min). Besides, this probe was utilized to detect Trp in rabbit blood serum and milk samples with good recoveries, which were verified by high-performance liquid chromatography (HPLC). Notably, this fluorescent probe proved to be a recyclable material. Hence, this work provides a reliable and recyclable fluorescent probe applicable toward the detection of Trp in biological fluids and/or food products.
研究领域:
生物化学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）