APPLIED CATALYSIS B-ENVIRONMENTAL
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2023
·
IF 22.1
Shiying Ren,Xin Xu,Zhong-Shuai Zhu,Yangyang Yang,Wenjie Tian,Kunsheng Hu,Shuang Zhong,Jiabao Yi,Xiaoguang Duan,Shaobin Wang
Plastic wastes were catalytically transformed into different structured carbons as effective catalysts for peroxymonosulfate activation to degrade organic pollutants in water and the catalytic conversion mechanism was comprehensively investigated. A salt template-based carbonization approach was successfully developed to catalytically converting high-density polyethylene (HDPE) into diverse carbon materials, such as core-shell carbon composites, nanosheets, and their hybrids. The morphology and proportions of structure defective carbon were found to be controlled by a NiCl 2 to HDPE ratio. Carbon nanosheets performed excellent catalytic efficiency in peroxymonosulfate activation toward phenol oxidation, due to a high content of reactive defects via a nonradical electron-transfer mechanism. More importantly, deliberate experiment design and kinetic analyses were employed to illustrate the artifact of radical scavengers (e.g., ethanol) in mechanistic investigation for nonradical/radical reaction. This work provides an upcycle approach for waste plastics into carbocatalysts and new insight to the conversion process and advanced water purification.
研究领域:
环境科学
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催化材料
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水处理技术
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DOI
高影响因子
Journal of Cleaner Production
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2020
·
IF 7.246
Lixin Li,Chao Jia,Xiangdong Zhu,Shicheng Zhang
Cigarette butts, as a non-biodegradable waste, is ubiquitous in our surrounding environment. It is mainly composed of cellulose acetate, which has considerable potential use value. Therefore, it is necessary to find an appropriate method to treat this waste and recover the useful resources. In this paper, the cigarette butts were directly pyrolyzed at different activation conditions to prepare the cigarette-derived functional carbon (CDFC) materials, which have bifunctional applications in supercapacitors and water contaminant removal . The result indicated that the properties of as-prepared CDFC materials were strongly affect by the activation conditions, such as pyrolysis temperatures, activator and N dopant (urea) contents. In addition, the N-doped CDFC material exhibited a high specific surface area (2068 m 2 /g) and a specific capacitance of 199 F/g at 1 A/g in 6 M KOH electrolyte. The capacitance retention of this material was close to 100% after 10,000 cycles at 10 A/g. For water remediation , the N-doped CDFC material also showed high ability on roxarsone adsorption (maximum 697 mg/g). Therefore, this paper provides new strategies for the resource utilization of common waste and synthesis of high-performance functional carbon material.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
CARBON
·
2024
·
IF 10.5
Guoquan Ma,Haiyue Peng,Xisheng Fan,Yang Li,Jing Gao,Yingjiang Hu,Bo Li,Yuanyou Yang,Jingsong Zhang,Lijian Ma,Ning Liu,Jiali Liao,Feize Li
Porous carbon materials stemming from covalent organic frameworks (COFs) have emerged as pivotal candidates in various fields. However, no COF or relevant derivative has stepped into the recovery of no-carrier added (NCA) 177 Lu, one of the most important radionuclides in modern medicine, from irradiated target. In this work, shape-persistent COF-derived carbon microsphere (COF-CMS) was successfully synthesized via self-templated carbonization and subsequently functionalized with active component 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester (P507). The prepared functional COF-CMS@P507 has shown high selectivity and fast adsorption kinetics for Yb 3+ /Lu 3+ in static batch adsorption and great potential in dynamic column separation of Lu 3+ from Yb 3+ . More importantly, based on plenty of tracer experiments and practical investigations, a separation process flow was established to realize the isolation of 177 Lu from an irradiated 176 Yb target. Consequently, 177 Lu product can be effectively obtained in preferable recovery (86%) with high radinuclidic and chemical purity (≥99.99%). The present study provides a new idea for NCA 177 Lu production, which is also valuable for the development of lanthanide separation and functional COFs.
研究领域:
放射医学
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材料科学
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核化学
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产品关联
DOI
高影响因子
Scientific Reports
·
2023
·Vol. 13
·期 1
·1-12
·
IF 4.6
Liu Yanhua,Liu Xingfei,Chen Juanning,Zhang Zhuanli,Feng Libang
Laserjet printing is a kind of facile and digital do-it-yourself strategies, which is of importance to fabricate inexpensive paper-based microfluidic devices. However, the printed hydrophobic barrier is not hydrophobic enough due to the weak hydrophobicity and requires subsequent heating, which can lead to the pyrolysis of cellulose in the paper and influence the detection results. Here, for the first time, we report a kind of functional toner including toner and polydopamine (PDA) nanocapsules which contains oleic acid modified ferric tetroxide (OA-Fe 3 O 4 ) and octadecylamine (ODA), which is suitable for printing with desired shapes and sizes to lead to formation of superhydrophobic barriers. Moreover, patterns printed with functional toner have good stability, including resistance to moisture, ultraviolet (UV) and bending. Finally, a proof-of-concept of metal and nitrite ions testing is demonstrated using colorimetric analysis, and the results show that the printed devices successfully perform instant detection of ions. The developed functional toner offers easy fabrication, cost-effectiveness and mass production of paper-based devices. In general, this strategy provides a new idea and technical support for the rapid prototyping of microfluidic paper-based analytical devices (μPADs) using laserjet printing.
研究领域:
材料科学
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分析化学
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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
GREEN CHEMISTRY
·
2021
·Vol. 23
·期 21
·8458-8467
·
IF 10.182
Shanshan Xiong,Chao Luo,Zhihao Yu,Na Ji,Lingjun Zhu,Shurong Wang
The isomerization–dehydration cascade conversion on the saccharide platform is a pivotal route for biomass valorization, although it exhibits a specific reaction complexity that makes achieving an efficient conversion a highly technical challenge. The rational design of novel versatile solid acids is deemed to be the key to improving the cascade catalytic performance. In this paper, a dual-functional carbon-based solid acid catalyst (DFCSA) with tunable Brønsted/Lewis acid sites was developed for the cascade conversion of saccharides. The combined modification of H3PO4 and HNO3 on the carbon substrate contributed to the grafting of protonated moieties with a reasonably porous structure. With the aid of AlPO4, which has an orthorhombic crystal structure, the newly developed catalyst was able to achieve good performance for the subsequent hydrothermal conversion. Under optimal conditions, glucose and xylose were transformed with high product yields: 38.2 mol% levulinic acid and 69.7 mol% furfural, respectively. In addition, the catalyst displayed excellent hydrothermal stability, with only a slight degradation in activity after 10 cycles, which was ascribed mainly to the high thermal stability of AlPO4 and the firm grafting of the surface functional groups. As shown by the kinetic analysis, the DFSCA catalyst had a higher conversion rate and lower activation energy in the cascade conversion of xylose than that of glucose, leading to a better yield of furfural.
研究领域:
化学工程
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材料科学
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生物化工
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产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2025
·
IF 21.1
Hanfeng Ye,Min Zhou,Fanghua Zeng,Wandong Xing,Fei Zhao,Wing-Kei Ho,Yidong Hou,Can Yang
As significant supplements to metal-based catalysts, carbon-based catalysts have rarely been applied in selective catalytic oxidation of hydrogen sulfide (H 2 S-SCO) at 200–300 ℃ due to inevitable generation of abundant sulfur dioxide (SO 2 ). Due to the ability to activate and utilize SO 2 , the development of Lewis pairs (LPs) into carbon catalysts could be a feasible strategy to alleviate the above issue and realize desired performance but remains challenges. Herein, we propose an affinity-mildness strategy to prepare nitrogen and phosphorus codoped carbon (P-NDC) catalysts under mild conditions, and further reveal the key factors for universal synthesis of such advanced functional carbon materials. The electron-deficient P atom in the carbon matrix as Lewis acid and the electron-rich N atom of pyridinic N as Lewis base comprise LPs, which promote the chemisorption of SO 2 and H 2 S, respectively. Benefiting from this improvement, P-NDC strengthens the Claus reaction obeying Langmuir-Hinshelwood mechanism and exhibits a higher sulfur selectivity (96.1 %) than the carbon catalyst without LPs (78.8 %) during H 2 S-SCO process at 260 ℃, exceeding reported metal-based and metal-free-based catalysts. This work exemplifies the potential of functional carbon materials with LPs in waste-to-chemical fields, another step towards the optimization vision of carbon materials.
研究领域:
材料科学
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催化化学
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产品关联
DOI
高影响因子
Coatings
·
2022
·Vol. 12
·期 12
·1892
·
IF 3.236
Chao Liu,Zhenxiang Chen,Ruiqin Kang,Yongsheng Niu,Wenhui Su,Xiaolong Wang,Dayong Tian,Ying Xu
Carbon-based functional materials are deemed to be excellent candidates to adsorb contaminants from wastewater, yet their catalytic roles in advanced oxidation processes (AOPs) are still ambiguous. Therefore, four functional carbons (SPFCx) were fabricated in this study under various pyrolysis temperatures by using Sedum plumbizincicola (SP) residues (a kind of phytoremediation plant) as the precursors. Notably, SPFC800 exhibited the best adsorption capacity (qe= 26.081 mg g−1) toward bisphenol A (BPA) due to its having the largest specific surface area (121.57 m2g−1). By injecting peroxymonosulfate (PMS, 5.0 mM), BPA (10 mg L−1) could be completely removed within 70 min. More importantly, the BPA removal was stable and effective even in complex wastewater. Interestingly, radicals played minor roles in the SPFC800/PMS system, while nonradical mechanisms (i.e.,1O2and electron-transfer regime) were responsible for the BPA elimination, which was verified by quenching tests, solvent exchange experiments (H2O2→D2O), and electrochemical experiments. Overall, this work may provide a facile and green method for BPA contaminated-wastewater purification and promote the application of AOPs in environmental remediation.Keywords:peroxymonosulfate;pre-adsorption;degradation;nonradical oxidation
研究领域:
环境科学
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化学工程
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材料科学
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DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Xinyu Huang,Junhong Li,Huan Zhang,Xuemin Duan,Lihua Yao,Ruirui Yue,Jingkun Xu
As a natural flavonoid glycoside, rutin has been made into many medical products due to its unique pharmacological activity. However, excessive intake of rutin is harmful to health. Therefore, developing a new sensing technique to achieve highly sensitive, rapid and on-site detection of rutin is of great significance to ensure food and medicine safety. Herein, an electrochemical sensing platform was proposed based on the nanocomposite of functionalized multi-wall carbon nanotubes/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/Ru nanoparticles (MWCNT-COOH/PEDOT:PSS/Ru) for rutin detection. The characterization techniques reveal that MWCNT-COOH and PEDOT:PSS crossed together forming a 3D interconnecting structure with plenty of areolations and high specific surface area, and Ru nanoparticles uniformly dispersed on the surface of MWCNT-COOH/PEDOT:PSS. Moreover, due to the good film reforming property of PEDOT:PSS, the as-obtained MWCNT-COOH/PEDOT:PSS/Ru composite shows special surface appearance as flexible free-standing film, which can be freely cut and used as sensing platform directly. Electrochemical experiments confirmed that MWCNT-COOH/PEDOT:PSS/Ru composite film performed satisfactory sensing properties toward rutin detection with wide linear ranges of 0.01 ∼ 0.7 μM and 0.7 ∼ 50 μM, low detection limit of 6.1 nM and high sensitivity of 79.43 μA μM −1 cm −2 . Besides, the composite sensing platform also exhibits high selectivity, reproducibility, and stability. During actual sample testing, the sensing platform was successfully applied for rutin detection in rutin pharmaceutical tablets and black buckwheat tea, showing promising application prospects in rapid, convenient, and high-efficiency on-site test.
研究领域:
材料科学
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分析化学
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生物医学工程
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产品关联
DOI
高影响因子
Small
·
2021
·Vol. 17
·期 50
·2103983
·
IF 13.281
Qing Feng Yao,Min Xia Quan,Jin Hua Yang,Qing Yu Liu,Zhen Qi Bu,Wei Tao Huang
Inspired by information exchange and logic functions of life based on molecular recognition and interaction networks, ongoing efforts are directed toward development of molecular or nanosystems for multiplexed chem/biosensing and advanced information processing. However, because of their preparation shortcomings, poor functionality, and limited paradigms, it is still a big challenge to develop advanced nanomaterials-based systems and comprehensively realize neuron-like functions from multimode sensing to molecular information processing and safety. Herein, using fish scales derived carbon nanoparticles (FSCN) as a reducing agent and stabilizer, a simple one-step synthesis method of multifunctional silver–carbon nanocomposites (AgNPs–FSCN) is developed. The prepared AgNPs–FSCN own wide antibacterial and multisignal response abilities in five channels (including color, Tyndall, absorption and fluorescence intensities, and absorption wavelength) for quantitative colorimetric and fluorescence sensing of H 2 O 2 , ascorbic acid, and dopamine. Benefiting from its multicoding stimuli-responsive ability, molecular concealment, and programmability, AgNPs–FSCN can be abstracted as nanoneurons for implementing batch and parallel molecular logic computing, steganography, and cryptography. This research will promote the preparation of advanced multifunctional nanocomposites and the development of their multipurpose applications, including the multireadout-guided multianalyte intelligent sensing and sophisticated molecular computing, communication, and security.
研究领域:
纳米材料科学
·
分子生物学
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化学传感
·
信息安全
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Runlin Han,Faxiang Feng,Zanming Zhu,Guilin Dong,Xiaobing Liu,Minggang Guo,Xiaohang Yang,Jiahao Qin,Huahao Wang,Yan Dai,Gaohong He
Metal-organic frameworks (MOFs) based Mixed-matrix membranes (MMMs) still present challenges in overcoming the traditional trade-off between permeability and selectivity in gas separation. Functionality of MOFs demonstrates great potentials in overcoming this issue. In this study, hierarchically structured multifunctional C@Fe 2 O 3 @ZIF-8 was proposed to construct strong adsorbed and low-resistance transport pathways enabling high CO 2 sieving through a “selective thermal etching” strategy. Leveraging the thermal stability difference between MIL-88 A(Fe) and ZIF-8, the core undergoes selective pyrolysis while preserving the crystalline ZIF-8 shell. The ZIF-8 shell enhances CO 2 /N 2 separation while optimizing interfacial compatibility, whereas the porous carbon core provides mesoporous structures for enhanced gas transport and ultramicroporous regions for improved CO 2 adsorption. Meanwhile, paramagnetic Fe 2 O 3 in the core layer enables optimized distribution of C@Fe 2 O 3 @ZIF-8 within the Pebax matrix. The C@Fe 2 O 3 @ZIF-8/Pebax MMM exhibits 216.46 % and 65.12 % improvements in CO 2 permeability and CO 2 /N 2 selectivity, respectively, over the Pebax matrix, exceeding the 2019 McKeown upper bound. This study pioneers a novel approach for constructing advanced multicomponent materials with customizable hierarchical structures by synergistically integrating high-throughput carbon channeling with MOFs molecular sieving technology.
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Beibei Song,Haoyue Zhao,Gang Zhao,Han Li,Can Ge,Guilong Yan,Jian Fang
Lithium-sulfur (Li-S) batteries are in the spotlight as one of the most promising energy storage systems, specifically suitable for electric vehicles and intelligent electronic devices. However, Li-S batteries still suffer from the shuttle effect of intermediate polysulfides , inducing the loss of active materials and slow redox reaction kinetics. Herein, a freestanding functional nanofibrous membrane with cobalt single atoms supported by porous carbon nanofiber skeletons is fabricated using a one-step carbonization process. The flexible nanofiber structure can provide the characteristics of good conductivity and lightweight, helping the polysulfides trapped in the porous structure of the fibrous skeleton. Moreover, the results of electrocatalytic characterization and theoretical calculation demonstrate the existence of the metal coordinate center Co-N x sites, and their functions of reducing polarization voltage and accelerating polysulfide conversion. Using this functional nanofiber membrane as an interlayer with the Co-N x coordination structure (Co@ N -PCNFs), the assembled Li-S batteries exhibit a high initial specific capacity (1522 mAh·g −1 at 0.1C) and outstanding rate performance (905 mAh·g −1 at 2C). Especially, the specific capacity of the Li-S batteries can achieve 786 mAh·g −1 at 0.5C with a sulfur loading of 4 mg·cm −2 after 100 cycles. This effective method of fabricating nanofibrous interlayers can effectively promote the development of advanced Li-S batteries and the application of electrospun materials in energy storage fields.
研究领域:
材料科学
·
电化学
·
能源存储
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DOI
高影响因子
ADVANCED MATERIALS
·
2024
·Vol. 36
·期 49
·2412605
·
IF 27.4
Ze-Yu Wang,Zhao-Chen Li,Bo Li,An-Feng Shi,Long Zhang,Yin-Bo Zhu,Fang Ye,Shu-Hong Yu
Electromagnetic (EM) wave pollution and thermal damage pose serious hazards to delicate instruments. Functional aerogels offer a promising solution by mitigating EM interference and isolating heat. However, most of these materials struggle to balance thermal protection with microwave absorption (MA) efficiency due to a previously unidentified conflict between the optimizing strategies of the two properties. Herein, this study reports a solution involving the design of a carbon-based aerogel called functional carbon spring (FCS). Its unique long-range lamellar multi-arch microstructure enables tunable MA performance and excellent thermal insulation capability. Adjusting compression strain from 0% to 50%, the adjustable effective absorption bandwidth ( EAB ) spans up to 13.4 GHz, covering 84% of the measured frequency spectrum. Notably, at 75% strain, the EAB drops to 0 GHz, demonstrating a novel “on-off” switchability for MA performance. Its ultralow vertical thermal conductivity (12.7 mW m −1 K −1 ) and unique anisotropic heat transfer mechanism endow FCS with superior thermal protection effectiveness. Numerical simulations demonstrate that FCS outperforms common honeycomb structures and isotropic porous aerogels in thermal management. Furthermore, an “electromagnetic-thermal” dual-protection material database is established, which intuitively demonstrates the superiority of the solution. This work contributes to the advancement of multifunctional MA materials with significant potential for practical applications.
研究领域:
材料科学
·
电磁学
·
热工学
·
纳米技术
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微波技术
·
复合材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）