Nano Research
·
2012
·Vol. 5
·期 7
·494-503
·
IF 6.97
Yang Tianshe,Liu Qian,Pu Shouzhi,Dong Zesheng,Huang Chunhui,Li Fuyou
Photoswitchable polymer nanoparticles (ps-PNPs) have been constructed by emulsion polymerization through embedding an iridium(III) complex, [Ir(bt) 2 (pic)](bt = phenylbenzothiazole, pic = picolinate), as a fluorophore and a diarylethene derivative (DTE) as a photochrome. The ps-PNPs show reversible luminescence modulation with DTE switching using UV light in aqueous solution and even in living cells. Such luminescent modulation only occurred in polymer nanoparticles and not in a simple mixed solution with low concentrations of [Ir(bt) 2 (pic)] and DTE. The ps-PNPs displayed good cellular uptake and fast intracellular luminescence modulation by photoswitching, indicating the nanoparticles could be developed as photoswitchable luminescent probes for a diversity of bioimaging applications.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Haoran Wang,Zhaoxia Hou,Hui Zhang,Wensheng Zong,Shuting Yin,Haibo Long,Zhongchao Fu,Nan Wu,Zihui Zhai,Depeng Zhang,Fanshun Meng,Dan Zhou
Aqueous zinc-ion batteries (AZIBs) are considered highly promising next-generation energy storage technologies due to their intrinsic safety, low cost, and high theoretical capacity. Among the potential cathode materials for AZIBs, manganese oxide stands out because of its high theoretical specific capacity, diverse crystal structures, and abundant crustal availability. However, drawbacks of manganese oxide including irreversible phase transitions, low ionic conductivity, and unavoidable Mn 3+ dissolution often result in low capacity and poor cycling stability. Herein, a novel dual-phase material, Mn 2 O 3 /(Co,Mn)(Co,Mn) 2 O 4 (MO/CMO), featuring a meso porous structure and stable phase interface, was facilely synthesized via one-step thermal decomposition of Co 2+ -doped MnCO 3 precursors. The meso pores provide additional active sites, facilitating faster reaction kinetics, while the phase interface effectively suppresses spontaneous Mn 3+ dissolution, resulting in excellent cycling stability. Specifically, the MO/CMO-10 cathode in aqueous electrolyte cell exhibits a high initial specific capacity of 253 mAh g −1 at 0.1 A g −1 , and enhanced cycling stability of 98 mAh g −1 after 2200 cycles at 1.0 A g −1 and an ultra-long cycle life of 63 mAh g −1 over 6800 cycles at 2.0 A g −1 . When assembled in flexible quasi-solid-state ZIBs, the cell maintains a high specific capacity of up to 124 mAh g −1 after 980 cycles at 1.0 A g −1 . Remarkably, the pouch cell sustains stable output even under harsh conditions, indicating promising potential for wearable applications.
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2022
·
IF 11.889
Yidi Wang,Wei Li,Yongkang Wang,Yusan Turap,Zhentong Wang,Zhe Zhang,Zhou Xia,Wei Wang
The effect of pretreatment technologies and reactor types on conversion efficiency and operating costs of anaerobic co-digestion of food waste and sewage sludge were investigated by 300-day continuous experiments. The volatile solids (VS) removal efficiency increased from 61% to 77% with the application of co-hydrothermal pretreatment of sewage sludge and biogas residue. Deep dewatering reduced the volume of hydrothermally pretreated biogas residue by 85%. When continuous stirred tank reactors (CSTRs) were converted to anaerobic sequencing batch reactors (ASBRs), vS removal efficiencies increased by 6%, attributed to a 1.4–1.6-fold increase in solids retention time (SRT). The bottom drainage of mineralized sludge every 40 days increased ASBR stability. Firmicutes and Methanosphaera dominated the bacterial and archaeal communities, respectively. Operating costs decreased by 14.9 US$/metric ton feedstock by applying ASBRs. Compared to CSTRs, ASBRs achieved higher organic matter conversion efficiency, smaller volume of biogas residue, and lower operating costs.
✓ 已验证
DOI
PubMed
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 9
·4949-4955
·
IF 3.119
Zhijie Chen,Xudong Hu,Xianghong Wang,Zhong Xiang
In this study, a series of poly(terminal vinyl dimethicone-co-methyl methacrylate-co-n-butyl acrylate)/pigment composite particles (P(DMS-Acr)/PB CPs) were successfully prepared via miniemulsion polymerization and their latex film microstructures on were examined carefully using transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM) and so on. Significant phase separation was observed after film formation, and the copper phthalocyanine blue (PB) particles tend to distribute in the polysiloxane island phase. After baking at 120 °C, the protrusions were generated. With increasing amount of vinyl terminated polydimethylsiloxane (ViPDMS) or baking time, the number of the protrusions became more and the appearance of the protrusions tends to be sharp. When the P(DMS-Acr)/PB CPs were applied in fabric printing, a continuous film was formed on the surface of the fabric at room temperature and therefore the gaps between yarns were blocked. However, the gaps in the fabric reappeared after baking at 120 °C, which could be attributed to the rapid flow of the polymer component. Finally, the fiber was coated with a layer of latex film containing a large number of mastoid structures, and the printed fabric could still retain the majority of the gaps between yarns and between fibers. Therefore, the printed fabric exhibited excellent performances such as good air permeability, softness, and rubbing fastness.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Ren Xie,Shucheng Liu,Yongchao Rao,Abdou Karim,Xiaosi Qi,Haifu Huang,Haicheng Xuan
The requirements of the morphology and material properties in common make it possible to integrate the two functional electrodes, hydrogen electrocatalyst and supercapacitor , into one material system. The order of electrochemical performance of core materials was ranked as NiCoP > NiCo 2 S 4 > NiCo 2 O 4 . By constructing core/shell heterostructure, Ni-Co-X/Co(OH) 2 composites achieved the boost of electrochemical performance than individual Ni-Co-X. Particularly, the NiCoP/Co(OH) 2 composite synthesized under optimal conditions presented both excellent catalytic activity and charge storage capability. The NiCoP/Co(OH) 2 composite needed small overpotential of 73 mV to drive current density of 10 mA cm −2 in 1 M KOH, displayed Tafel slope of 75 mV dec −1 and long-term stability over 15 h without obvious fluctuation. Moreover, the NiCoP/Co(OH) 2 composite showed high specific capacitance of 1604 F g −1 at 1 A g −1 , delivered remarkable rate capability of 81.8 % at 20 A g −1 and cyclic stability with 91.8 % capacity retention over 5000 cycles. The impressive electrochemical properties of NiCoP/Co(OH) 2 composite is attributed to the enriched active sites, enhanced electronic conductivity and strong synergistic effect. Our research provides insights and effective strategies for the design and synthesis of integrated electrodes for hydrogen electrocatalysts and supercapacitors.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 136
·期 36
·47937
·
IF 2.188
Shan Jiang,Wei Wang,Wei Chen,Hongwen Zhang,Kemin Wang
Polypropylene (PP)–silicon dioxide (SiO 2 ) compound microporous membranes were fabricated by a melt-stretching method. Although the permeability, porosity, and hydrophilicity values of the microporous membranes were found to be highest at an SiO 2 content of 2 wt %, the heat resistance of the membranes was relatively low. To improve the heat resistance of the microporous membranes, a macromolecular coupling agent, PP- g -poly(α-methyl styrene- co -glycidyl methacrylate- co -γ-methacryloxypropyl trimethoxy silane) (PAGK), was introduced into the membrane. In the PP–PP- g -PAGK–SiO 2 composite systems, the content of SiO 2 was controlled at 2 wt %, and the proportion of PP- g -PAGK was varied. With increasing PP- g -PAGK content to 0.6%, the Gurley value decreased from 250 to 239 s, and the porosity increased from 50.8 to 51.6%. The hydrophilicity of the microporous membranes increased with the incorporation of PP- g -PAGK, and their water vapor transmission rate reached a maximum of 3360 g m −2 /24 h at a PP- g -PAGK content of 0.6%. The heat resistance of the PP–PP- g -PAGK–SiO 2 compound microporous membranes was slightly higher than that of the pure PP microporous membrane. Additionally, the cycle performance of a cell assembled with the PP–PP- g -PAGK–SiO 2 membrane was better than that constructed with the pure PP membrane. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47937.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Lei Liu,Chunjiang Han,Guofang Ding,Meiying Yu,Yunfei Li,Shengnan Liu,Yunxuan Xie,Jia Liu
Bimetallic CuCo-doped graphene-like carbon nanosheets (CuCo@GCNs) were synthesized via a facile and efficient process using agarose as carbon templates to activate peroxymonosulfate (PMS) for tetracycline (TC) degradation. In this study, CuCo@GCNs/PMS system exhibited excellent TC removal efficiency (0.182 min −1 ), which was unaffected by various water matrices and applicable to a wide pH range (3.44–8.44). Radicals (SO 4 •− , • OH, and O 2 •− ) and non-radical ( 1 O 2 ) pathways collectively contributed to catalytic TC oxidation based on quenching experiments and electron paramagnetic resonance (EPR) analysis. Density functional theory (DFT) calculations revealed that the mechanism of PMS molecules activated on the surface of CuCo@GCNs, in which CoO provided more catalytic sites while Cu 2 O further enhanced electron transfer. Moreover, the synergistic effect of CuCo bimetal could accelerate redox cycles of Cu + /Cu 2+ and Co 2+ /Co 3+ , inducing the generation of abundant oxygen vacancies (O V s), thus enhancing PMS activation performance. Three potential TC degradation pathways were proposed according to fifteen possible intermediates detected by liquid chromatography-mass spectrometry (LC-MS). In brief, this work provides an efficient CuCo@GCNs heterogeneous catalyst and a new insight into PMS activation, which extends the application of bimetallic materials for environmental remediation.
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yancheng Yan,Zeyu Xue,Lianci Wu,Yumei Luo,Xiaodong Bai
In the process of oil and gas production, the failure of drilling fluid caused it to invade the formation, leading to wellbore instability. N-isopropylacrylamide (NIPAM), acrylamide (AM), and sodium p-styrene sulfonate (SSS) were used as raw materials, and the P(NIPAM/AM/SSS) (abbreviated as NAS) temperature-sensitive plugging agent was synthesized by inverse emulsion polymerization. The optimum synthesis conditions were obtained using a redox initiation system. Infrared measurements and UV–visible analysis showed that the target product was successfully prepared, and NAS exhibited a lower critical solution temperature (LCST) of 55°C, with sensitive temperature-responsive behavior. Rheological and filtration tests, along with high-temperature and high-pressure (HTHP) sand tray tests, demonstrated that the temperature-sensitive plugging agent effectively plugged the formation. Particle size analysis and Zeta potential analysis indicated that the addition of the temperature-sensitive plugging agent increased the electrostatic stability of bentonite-based slurry and polymer. Contact angle measurements and micro-morphology of the mud cake revealed that a hydrophilic-hydrophobic transition occurred at high temperatures in NAS, forming a dense hydrophobic film on the surface of the mud cake. This film effectively sealed cracks and micropores, reduced the invasion of free water, and improved wellbore stability.
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2022
·Vol. 29
·期 33
·50177-50191
·
IF 5.19
Wang Meng-lu,Zhao Zhe,Lin Shumin,Su Ming,Liang Bolong,Liang Shu-xuan
The present study aimed to investigate the co-adsorption and application of water stabilized Fe 3 O 4 @ZIF-8 composite with magnetic cubic crystal structure. This new material was successfully prepared by facile modification strategy and rational design, which was used for simultaneous adsorption of oxytetracycline (OTC) and Pb(II) in aqueous solution. The co-adsorption behavior and mechanism of the composite for OTC and Pb(II) were systematically investigated by characterization techniques and batch experiments, and its application potential was effectively evaluated. The results showed that the synthesized Fe 3 O 4 @ZIF-8 composite innovatively retained the cubic crystal structure of ZIF-8 and was successfully loaded on the surface of Fe 3 O 4 particles with small particle size to form a core-shell structure. The Fe 3 O 4 @ZIF-8 composite possessed a large specific surface area (1722 m 2 /g), magnetic separation performance (13.4 emu/g), and rich functional groups. The co-adsorption of OTC and Pb(II) on Fe 3 O 4 @ZIF-8 had fast reaction kinetics (equilibrium within 90 min) and large adsorption capacity (310.29 mg/g and 276.06 mg/g respectively). The adsorption process for both contaminants followed pseudo-second order kinetics and Langmuir isotherm models and had synergistic and competitive effects at the same time. π-π stacking and electrostatic interaction were the main mechanisms of adsorption. Fe 3 O 4 @ZIF-8 had good adsorption performance after cyclic adsorption for 4 times and it performed well in the treatment of real waste water. This study provided a new sight for the control of combined pollution of OTC and Pb(II) and proved Fe 3 O 4 @ZIF-8 composites have great application potentials for complex wastewater treatment.
✓ 已验证
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2022
·Vol. 169
·期 10
·106507
·
IF 4.386
Mengxue Huang,Ruimin Ding,Jie Yang,Wenwen Shi,Shufang Shi,Lifang Chen,Shanshan Liu,Xi Yin
Platinum group metal-free catalysts based on transition metal and nitrogen co-doped carbon materials are gaining attention for their applications in electrocatalysis. Nitrogen-coordinated metal sites (MNx) have been identified as the main active sites in PGM-free catalysts. Current synthetic approaches rely on the high-temperature treatment to introduce targeted electroactive MNx sites into the carbon matrix. In this study, we demonstrated the formation of MNx sites on Ni- and N-co-doped carbon templates via the solution-phase coordination with target metal ions, including Fe2+, Fe3+, and/ Co2+. The formation of MNx sites was confirmed via a combined approach of various physical characterization techniques, elemental analysis, and electrochemical analysis. The results indicate that the metal-vacancy-Nx sites in the template can coordinate with target ions to form electrochemically active MNx sites. By varying heat-treatment temperature, the amount of FeNx sites formed via coordination with Fe2+ ion can be tuned and correlated with the change of activity toward oxygen reduction reaction. The amount of MNx sites formed via solution-phase coordination with various ions followed the sequence of Co2+ > Fe2+ > Fe3+. These findings may further guide the future development of MNx-C electrocatalysts through this solution-phase coordination approach.
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2022
·
IF 3.428
Hengyu Xu,Chen Qian,Xiaojie Tan,Wei Xia,Yulong Wu
This paper investigates the fabrication of Co-doped carbon nitride (C 3 N 4 -Co) and its application in degrade 4-chloro-guaiacol. Co-doped carbon nitride significantly enhanced the photocatalytic activity for 4-chloro-guaiacol degradation compared to unmodified carbon nitride. Under the same conditions, the degradation rate of 4-chloro-guaiacol by unmodified C 3 N 4 was only 30.7 %, however it increased to 73.7 % by Co-doped carbon nitride (0.25 wt%). Co-doping can extend the wavelength range, improve oxygen adsorption, and reduce electron-hole recombination. However, the greater the amount of Co-doping. But, when the doping level is too high, excessive oxygen adsorption may occur on the surface of the active site, obstructing 4-chloro-guaiacol adsorption and reducing the catalytic efficiency. This work could provide useful information regarding AOX degradation for future research.
研究领域:
环境化学
·
材料科学
·
光催化
·
水处理
✓ 已验证
DOI
高影响因子
IONICS
·
2026
·
IF 3.4
Jie Yuxin,Wang Wenhai,He Maowei,Yang Can,Wang Linyu
Hexavalent chromium (Cr(VI)) poses serious risks to human health and ecological environment due to its high toxicity and non-biodegradability. Therefore, developing highly sensitive detection methods for Cr(VI) is of significant importance. Here, a colorimetric sensing platform based on hollow cobalt and nitrogen co-doped porous carbon (H-Co, NPC) was proposed for the sensitive detection of Cr(VI). H-Co, NPC was synthesized by high-temperature calcination of a ZIF-8@ZIF-67 precursor, and it exhibited excellent peroxidase-like and oxidase-like activities. The hollow structure significantly enhances the accessibility of active sites and facilitates mass transport, while the co-doping of Co and N effectively improves electron transfer capability and substrate affinity. These synergistic effects make H-Co, NPC a promising candidate for colorimetric sensing applications. The sensing platform demonstrated excellent detection capabilities toward Cr(VI), including low detection limit (5 nM), wide linear range (0.015-1.5 µM), outstanding reproducibility and anti-interference ability. Moreover, it exhibited satisfactory detection performance of Cr(VI) in real samples. This work would provide new insights into the development of highly sensitive colorimetric sensing platforms.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）