NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 14
·6450-6457
·
IF 3.591
Lin Mei,Zhenlong Xu,Zhiqiang Miao,Mengyao Yun,Yidan Luan,Dehong Yang,Luxi Xia
This paper proposes synergistic photodynamic antimicrobial therapy and chemotherapy for enhanced wound healing using polymyxin B-functionalized phthalocyanine (Pc-PB) as a new photosensitive antibacterial agent. The rapid healing of a bacteria-infected wound was achieved via combining the photodynamic antibacterial activity of phthalocyanine with the innate antibacterial ability of polymyxin B. After the functionalization of polymyxin B, the new phthalocyanine derivative can effectively target the bacterial surface and generate singlet oxygen to kill Gram-positive and Gram-negative bacteria under 680 nm light irradiation. Additionally, the prepared Pc-PB can form colloidal nanoparticles to significantly increase the solubility and dispersion of phthalocyanine in water. For the antimicrobial action mechanism, the antibacterial agent can interact with bacteria via binding to the Ca2+ and Mg2+ ions of the bacterial surface and then disrupting the bacterial membrane. Pc-PB shows good biocompatibility and can promote the healing of bacteria-infected wounds. These results suggest that phthalocyanine combined with bioactive molecules has potential for application in photodynamic therapy.
研究领域:
医学
·
生物材料学
✓ 已验证
DOI
高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2019
·Vol. 42
·期 11
·2023-2031
·
IF 2.516
Kai Hu,Jiamin Cheng,Binbin Lu,Wenjie Zhao,Chunhong Dong,Huaixia Yang,Yanjie Huang,Shusheng Zhang
A core-shell structured magnetic polyimide composite has been synthesized by the covalent coating of a mesoporous polyimide polymer onto the surface of magnetite nanoparticles. The nanocomposite was characterized by scanning electron microscopy, transmission electron microscopy, N 2 adsorption-desorption isotherms, X-ray diffraction, infrared spectroscopy, and vibrating sample magnetometry. The results showed that the prepared composite had a large surface area (306.45 m²/g), a unique pore size (2.15 nm), and strong magnetic properties (45.7 emμ/g), rendering it a promising sorbent material for magnetic solid-phase extraction. The parameters that affect the extraction efficiency of rhodamine B were optimized with the assistance of response surface methodology. Under the optimal conditions, the developed method has been successfully applied to determine the rhodamine B in food samples. The linearities and limits of detection of rhodamine B in hot pepper, red wine, and chili powder samples were measured. Satisfactory recoveries in the range of 94.8–103.3% with relative standard deviations <5.5% were obtained. Investigation of the adsorption mechanism of magnetic polyimide composite indicated that multiple interactions, including hydrophobic, π-π, and hydrogen bonding interactions, were involved in the adsorption process.
研究领域:
材料科学
·
分析化学
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2019
·
IF 7.467
Fengyan Xie,Jingwei Zhu,Yafeng Li,Deli Shen,Antonio Abate,Mingdeng Wei
The electron transporting layer plays an important role in charge extraction and transporting procedure for mesoscopic perovskite solar cells. Herein, the TiO 2 -B nanoparticles are used as an electron transporting material in perovskite solar cells for the first time which achieves a high efficiency of 18.83%. Furthermore, the effects of TiO 2 -B electron transporting layer on the nature of perovskite adsorption layer and the photovoltaic properties of devices are investigated in detail. As a consequence, the high efficiency can be ascribed to perovskite layer with a high crystallinity , resulting in suppressing charge recombination at interfaces, leading to favourable energy level alignment between perovskite and TiO 2 -B.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2022
·
IF 7.968
Shinuo Wang,Yinghao Ruan,Ludong Yi,Di Liu,Jun Wang,Dawei Fang,Zhaohong Zhang
In this study, a thermally assisted hydrodynamic cavitation (HC) system was established by adding a water pre-heater in front of the cavitation device (orifice plate), which realizes the local heating of the flowing liquid, intensifies the HC effect and enhances Rhodamine B (RhB) degradation ratio and heat generation efficiency. The effects of preheating temperature, RhB initial concentration, orifice hole number, inlet pressure and solution volume on RhB HC degradation and heat generation were investigated. Free radical trapping experiments were performed to explore the active substances produced by the HC effect. Based on LC-MS and TOC data, the possible RhB degradation pathway and mechanism were proposed. When the preheating temperature rose from 10 °C to 50 °C, the RhB degradation ratio increased from 23.42% to 34.49% within 90 min cycle time, and the treatment cost decreased from 130.699 USD/m 3 to 91.701 USD/m 3 . At 30 min cycle time, the solution temperature rose from 45.6 °C to 56.4 °C, the heat production increased from 149.46 KJ/L to 194.81 KJ/L and the corresponding thermal efficiency increased from 47.45% to 61.84%. Further, at 60 min cycle time, under the conditions of 30 °C preheating temperature, 30 mg/L RhB initial concentration, 3-hole orifice plate, 3 bar inlet pressure and 5.0 L RhB solution volume, the RhB degradation ratio was the highest (40.38%). After Fenton reagent was used, the RhB degradation ratio and heat production both were further enhanced. At 60 min cycle time, the RhB degradation ratio was 65.52%, solution temperature rose to 72.8 °C, the heat production reached 131.83 KJ/L and the treatment cost was only 45.447 USD/m 3 at 30 °C preheating temperature. TOC test results show that the RhB mineralization ratio can reach 61.53% after 90 min cycle. All in all, this work proves that thermally assisted HC is an effective method to degrade organic dyes and generate heat, which can be used for large-scale treatment of organic dye wastewater.
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Weicai Liu,Hui Zong,Mengshu Li,Ziquan Zeng,Shijing Gong,Ke Yu,Ziqiang Zhu
A two-dimensional MXene (Ta4C3) was innovatively used herein to modulate the space group and electronic properties of vanadium oxides, and the MXene/metal–organic framework (MOF) derivative VO2(B)@Ta4C3 with 3D network cross-linking was prepared, which was then employed as a cathode to improve the performance of aqueous zinc ion batteries (ZIBs). A novel method combining HCl/LiF and hydrothermal treatments was used to etch Ta4AlC3 to obtain a large amount of accordion-like Ta4C3, and the V-MOF was then hydrothermally grown on the surface of the stripped Ta4C3 MXene. During the annealing process of V-MOF@Ta4C3, the addition of Ta4C3 MXene liberates the V-MOF from agglomerative stacking, allowing it to show additional active sites. More significantly, Ta4C3 prevents the V-MOF in the composite structure from converting into V2O5 of space group Pmmn but into VO2(B) of space group C2/m after annealing. A considerable advantage of VO2(B) for Zn2+ intercalation is provided by the negligible structural transformation during the intercalation process and the special tunnel transport channels, which have an enormous area (0.82 nm2 along the b axis). According to first-principles calculations, there is a strong interfacial interaction between VO2(B) and Ta4C3, which deliver remarkable electrochemical activity and kinetic performances for the storage of Zn2+. Therefore, the ZIBs prepared with the VO2(B)@Ta4C3 cathode material exhibit an ultra-high capacity of 437 mA h·g–1 at 0.1 A·g–1 while showing good cycle performance and dynamic performance. This study will offer a fresh approach and a reference for creating metal oxide/MXene composite structures.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2020
·
IF 2.369
Xiaomei Wang,Zhen Liu,Fa Zhou,Jianhan Huang
Imidazolium salt-incorporated postcross-linked porous polymers, namely, IL-PVB-pc-80%, were developed, and they were evaluated for the adsorption of rhodamine B (RB) and Cd2+ from aqueous solution. After N-vinylimidazole and p-dichloroxylene were inserted in the skeletons, IL-PVB-pc-80% contained both ionized imidazole moieties and plentiful mesopores. The adsorption experiments indicated that IL-PVB-pc-80% has excellent adsorption properties with a maximum capacity of 693.5 mg/g for RB and 373.3 mg/g for Cd2+. The adsorption mechanism revealed that the incorporated imidazolium salts were significantly beneficial for the adsorption.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2025
·Vol. 39
·期 5
·e70141
·
IF 0
Huan Zhang,Wen-Qi Jin,Peng Li,Wei Gao,Xiu-Mei Zhang
A highly efficient photocatalyst, the CdS/Mn-MOF composite, was synthesized by first preparing a new 2D Mn-MOF (Mn(L)·H 2 O, H 2 L = 5-(2-benzothiazolyl)isophthalic acid) precursor through the solvothermal method and subsequently growing CdS nanoparticles. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), UV–vis spectroscopy, and other techniques were utilized to characterize the structural, morphological, textural, compositional, and optical properties of the composites. The prepared photocatalysts, designated as X-CdS/Mn-MOF (where X = 50, 25, and 10, represents the mass percentage of CdS), were tested for photocatalytic performance. Among them, the 50-CdS/Mn-MOF sample exhibits the optimized degradation efficiency of 99.1% for Rhodamine B (RhB, 20 mg/L) in 50 min under visible light irradiation, which is 7.3 times and 2.4 times higher than that of Mn-MOF and CdS, respectively. Various test results indicate that the improved photocatalytic activity of CdS/Mn-MOF composites can be attributed to the formation of heterojunctions. Specifically, the heterojunctions enhance the separation efficiency of photogenerated carriers and effectively suppress the recombination of electrons and holes, thereby improving the overall efficiency of the photocatalytic reaction. Moreover, the presence of heterojunctions optimizes the material's band structure, facilitating more efficient carrier transport, which further enhances photodegradation performance. Radical quenching experiments confirmed hydroxyl radicals (·OH − ) and superoxide radical anions (·O 2 − ) played dominant roles in the photodegradation process. Additionally, the composite material also demonstrates good stability and reproducibility. The research further provides evidence that the efficiency of dye degradation can be significantly improved by the rational design of composite catalysts consisting of other semiconductors and MOFs.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2017
·Vol. 28
·期 23
·18145-18153
·
IF 2.019
Hao Meifeng,Fa Dejuan,Qian Lihong,Miao Yuqing
By one step hydrothermal reaction, the ultrafine nanoparticles of Bi 2 WO 6 /NiWO 4 were prepared with the particle size smaller than 5 nm. They dispersed very well in solution and exhibited excellent photocatalytic efficiency for the degradation of Rhodamine under visible light, UV light and natural solar light respectively. Under visible light irradiation for 30 min, the model dye Rhodamine B (Rh B) nearly completely degraded. For natural solar light irradiation, only 10 min observed the complete degradation of Rh B. This provides new nanocomposites for efficient photo-driven degradation of organic dyes under visible or natural solar light irradiation.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Omega
·
2023
·
IF 4.1
Pengwei Li,Ting Zhao,Ziheng Zhao,Hanxiao Tang,Weisheng Feng,Zhijuan Zhang
In this study, one well-known CHM residue (Atropa belladonna L., ABL) was used to prepare biochar capable of adsorbing rhodamine B (RhB) with an ultrahigh surface area for the first time. Three micropore-rich ABL biochars including ABL@ZnCl2 (1866 m2/g), ABL@H3PO4 (1488 m2/g), and ABL@KOH (590 m2/g) were obtained using the one-step carbonization method with activation agents (ZnCl2, H3PO4, and KOH) via chemical activation and carbonization at 500 °C, and their adsorption performance for RhB was systematically studied with adsorption kinetics, isotherms, and thermodynamics. Through pore diffusion, π–π interaction, and hydrogen bonding, ABL biochar had excellent adsorption performance for RhB. Moreover, when C0 was 200 mg/L, biochar dosage was 1 g/L, and the contact time was 120 min; the maximum RhB adsorption capacity and removal efficiency on ABL@ZnCl2 and ABL@H3PO4 were 190.63 mg/g, 95% and 184.70 mg/g, 92%, respectively, indicating that it was feasible to prepare biochar from the ABL residue for RhB adsorption. The theoretical maximum adsorption capacities of ABL@ZnCl2 and ABL@H3PO4 for RhB were 263.19 mg/g and 309.11 mg/g at 25 °C, respectively. Furthermore, the prepared biochar showed good economic applicability, with pay back of USD 972/t (ABL@ZnCl2) and USD 987/t (ABL@H3PO4), respectively. More importantly, even after five cycles, ABL@H3PO4 biochar still showed great RhB removal efficiency, suggesting that it had a good application prospect and provided a new method for the resource utilization of traditional CHM residues. Additionally, pore diffusion, π–π interactions, and hydrogen bonding all play roles in the physical adsorption of RhB on ABL biochar. π–π interactions dominated in the early stage of RhB adsorption on ABL@H3PO4, while pore diffusion played a crucial role in the whole adsorption process on both adsorbents.
研究领域:
环境科学
·
材料科学
·
中医药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemPhotoChem
·
2025
·
IF 3
Mengrong Zhang,Sha Ni,Zichao Yang,Min Zhang,Zhongjie Guan,Jianjun Yang
Graphical Cu-modified monoclinic TiO 2 nanoflowers with OVs (Cu 1 TB-1.5) promote the reactivity and selectivity of CO 2 reduction to CO under visible light. CO selectivity is 99.6%, and the cycling stability is excellent. The Cu 1 TB-1.5 facilitates the formation of the intermediate COOH* during the photocatalytic process, thus improving the yield and selectivity of CO. The photoreduction of CO 2 has attracted extensive attention as a promising solution to global warming. In this study, Cu-modified TiO 2 (B) (CuTB) nanoflowers with oxygen vacancies (OVs) are designed and synthesized via hydrothermal treatment and photodeposition to promote the reactivity and selectivity of CO 2 reduction to CO under visible light. The CO and CH 4 yields of sample Cu 1 TB-1.5 under visible light are 5.72 and 0.02 μmol g −1 h −1 , wherein the CO yield was 15.5 times that of sample TB; its selectivity is 99.6%, and the cycling stability is excellent. OVs can broaden the light absorption of TB to the visible light region, and Cu promotes photoinduced electron transfer from TB to the Cu species and act as an active center. The OVs and Cu can synergistically enhance charge separation, CO 2 adsorption, and CO 2 conversion. The Cu 1 TB-1.5 facilitates the formation of the intermediate COOH* during the photocatalytic process, thus improving the yield and selectivity of CO. This research provides a unique idea for the development of novel highly selective photocatalysts.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 30
·2202245
·
IF 19.924
Tingting Liang,Xiaqing Zhang,Lijun Su,Ruilin Hou,Bingjun Yang,Junwei Lang,Shengrong Yang,Xingbin Yan
Perovskite materials can store charge through rapid oxygen anions intercalation. Although numerous perovskite materials owing to rich selections of A and B-site elements are reported as electrodes of supercapatteries, the effect of the crystal structure of perovskite materials on their electrochemical performance has never been studied so far. Herein, using SrCo 0.9 Mo 0.1 O 3− δ , SrFeO 3− δ , Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3− δ , and LaMnO 3− δ as research targets, it is proved that their corresponding cubic structure materials display the best electrochemical performance. And then, the origin of such superiority of cubic structure for SrCo 0.9 Mo 0.1 O 3− δ is explored through experimental investigations and theoretical calculations. The results show that the increase in the content of oxygen vacancies and the enhancement of B-O hybridization of cubic structure can optimize the electronic structure of the perovskite materials, thereby improving its conductivity and accelerating the reaction kinetics. The filtering strategy based on crystal structure proposed by this report will provide a new perspective to faster and more efficient choice of perovskite materials for supercapatteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Green Energy & Environment
·
2021
·
IF 8.207
Dashui Yuan,Zongyuan Li,Xueru Chen,Jing Ding,Hui Wan,Guofeng Guan
Proper interface and band alignment always play essential roles in the separation of photoexcited charge of photocatalysts. In this work, we prepared a homodispersed S-scheme carbon nitride homojunction with local electron structure difference by a facile pre-doping and two-step calcination approach. Boron doping into heptazine created extra acceptor impurity, and phosphorus doping into heptazine created extra donor impurity, which eventually modulated the electronic structure of carbon nitride. As heptazines with different element doping were integrated into carbon nitride by recalcination, B–CN and P–CN formed a homodispersed homojunction and thus produced a rich interface. Meanwhile, caused by Fermi energy levels equilibrium, the band bending constructed an S-scheme homojunction, which stimulated photogenerated electrons to transfer from CB of B–CN to VB of P–CN. The homodispersed S-scheme homojunction structure led to efficient suppression of recombination of photoinduced charge and retained stronger redox charge. Consequently, the photocatalytic performance was dramatically boosted to 2620 μmol g −1 from 60 μmol g −1 of pure CN in 4-h hydrogen evolution from water. This novel method for electron structure engineering helped to provide a new strategy for designing homojunction photocatalysts with excellent photocatalytic performance.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）