JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2023
·
IF 4.5
Jingjing Zhan,Min Zhan,Xiujuan Zhang,Yiwen Zhang,Tianxiang Wang,Yang Liu,Shoukai Wang
There are many reports related to the hollow carbon nanosphere with the applications in electrochemistry. However, it remains insufficient research in the field of electro-Fenton. In this study, we discovered that hollow carbon spheres can be obtained by the self-assembly of β-cyclodextrin in one step, without using any templates and toxic organic solvents. Meanwhile, activation methods were explored to create more pores and regulate the surface groups in the outer shell of the materials, which are key factors affecting the H 2 O 2 production capability. It is found that H 2 carbonization effectively converts a large number of sp 2 -C bonds on the surface of the materials to sp 3 -C, providing more active sites for reaction during the electrocatalytic process. The results show that the hollow carbon nanosphere after dual activations has the most H 2 O 2 production rate at 70 mg·L -1 ·h −1 , higher than those of carbon solid spheres and unmodified hollow carbon nanospheres. In the application of electro-Fenton, this material exhibits the degradation efficiency of 95.5 % for 50 mg·L -1 p -nitrophenol, fully meeting the needs of environmental remediation. The whole preparation and activation process is simple, environmentally friendly, easy to be scaled up and has broad application prospects. This paper enhanced the understanding of common hollow carbon spheres in the hot research field of electro-Fenton.
研究领域:
环境科学
·
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 10
·期 4
·1225-1237
·
IF 7.779
Rui Hu,Yan Zhao,Ying Zhang,Xusheng Wang,Guorong Li,Mingxue Deng
The demand for multidimensional stimulus sensing devices that can be used for the real-time monitoring of the equipment status in complex working environments has led to investigations on multifunctional optoelectronic materials. Nevertheless, the exploitation of all-in-one materials with multimode and multicolor luminescence capacities is still immature. Given the abundant transitions in lanthanide ions and the stress-responsive ability of piezoelectric crystals, multi-activator-doped piezoelectric materials are promising candidates for multifunctional detection based on luminescence characteristics. Herein, we report a novel multidimensional stimulus-sensitive material constructed via combining dual luminescence centers (Bi3+/Er3+) with piezoelectric LiTaO3, thus realizing opto-mechano-thermo-responsive luminescence in a single material. Particularly the photoluminescence is allochroic (cyangreen-yellow) under diverse excitation sources (ultraviolet-blue-near infrared radiation). Its mechanoluminescence performance shows a linear relation with the applied load, allowing its application in stress sensing. In addition, the thermally coupled levels of Er3+ dopants endow the LiTaO3 material with temperature sensing capacity relying on the fluorescence intensity ratio. These findings provide a new method for designing optical function materials and integrated optoelectronic devices toward radiative, stress, and temperature sensing applications.
研究领域:
材料科学
·
光学
·
传感器技术
✓ 已验证
DOI
高影响因子
Reaction Chemistry & Engineering
·
2024
·
IF 3.4
Minmin Liu,Bingxi Song,Yanhui Hu,Xianglei Meng,Renzheng Jiang,Yanyan Diao,Yuting Song
Following the principle of sustainable and green development, the environmentally friendly and highly efficient manufacturing of fluorine chemical products is becoming an unavoidable development trajectory. Ionic liquid catalysts have shown great potential to replace traditional metal salt catalysts, which cause environmental pollution, in the dimerization of perfluorinated olefins. In this study, a series of strong nucleophilic thiocyanate ionic liquids with various cationic structures were designed and synthesized. The catalytic activity of 4-dimethylaminopyridine (DMAP) ionic liquids exceeded that of reported catalysts, being 2.4 times higher than that of traditional metal salt catalysts, and 1.5 times higher than that of imidazole ionic liquids reported in the literature. Under the optimal reaction conditions, the high turnover frequency (TOF) value of the [C6DMAP][SCN] catalyst performance reaches 325.04 h−1. Based on the experimental results, density functional theory (DFT) and XPS analysis, the excellent catalytic performance of [C6DMAP][SCN] can be attributed to the dual active sites of anions and cations, and a dual-activation reaction mechanism is further proposed. This study not only expands the application of ionic liquid in the hexafluoropropylene dimerization reaction but also helps establish a more efficient, green, and sustainable catalytic process for hexafluoropropylene dimerization.
研究领域:
化学工程
·
绿色化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Ting Luo,Shuai Huang,Shuaige Bai,Bin Feng,Wenzhi Huang,Xiang Cheng,Meihui Liu,Heying Yao,Wenbin Zeng
Real-time optical sensing of mercury has been developed rapidly in recent years but remains challenging such as bearing background interference. Herein, a Hg 2+ and base dual-activatable ultrasensitive chemiluminescent probe CL-Hg based on benzothiazole-phenoxyl-dioxetane with profits of excitation light-free and minimal interference is presented. The photophysical properties study and sensing performance verified CL-Hg is coupled with unique advantages of long-term detection (more than 400 min), ultrahigh sensitivity (LOD = 0.52 nM), and high specificity to Hg 2+ , and visualization detection by the paper-based test strips. More importantly, CL-Hg showed the qualitative and quantitative detection capability for Hg 2+ with great recyclability in real samples of water, seafood, and beverages, holding great potential for on-site monitoring of Hg 2+ levels in the actual samples. To our knowledge, this is the first work achieving the detection of Hg 2+ by chemiluminescence. Overall, the Hg 2+ -activated visualization platform offers a practical method for detecting Hg 2+ in various application scenarios.
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Science China-Materials
·
2024
·Vol. 67
·期 12
·4101-4110
·
IF 6.8
Luo Meng,Guo Jiajing,Zhu Yi,Deng Jiali,Lu Hongwei,Li Lei,Wang Zhongling
Acidity-activatable magnetic resonance imaging (MRI) nanoprobes offer great potential for in vivo cancer imaging by targeting the acidic tumor microenvironment (TME). However, their effectiveness is limited by the delayed response at tumor sites and uncontrollable background noise, compromising imaging accuracy and reliability. Herein, an acidic TME-responsive nanoprobe, SPIO@ZIF-8@Gd (SZG), with dually activatable T 1 and T 2 MR signals is shown for acidity-selective contrast enhancement in a rapid response manner. It shows decreased T 1 and T 2 contrast intensity in normal physiological conditions. Once targeting acidic TME, the zeolitic imidazolate framework-8 (ZIF-8) layer undergoes instantaneous decomposition, releasing Gd 3+ ( T 1 -weighted), and exposing the inner SPIO ( T 2 -weighted) core, thereby sequentially recovering the signals. Compared to previously reported T 1 - T 2 nanoprobes, SZG demonstrates noticeable “dual activation” after just 30 min and reaches its peak 4 h after acid incubation. Additionally, it shows an excellent “acidity correlation” between relaxation times and pH values. When the SZG nanoprobe is used combined with “dual-contrast enhanced subtraction (DESI)”, the contrast difference between diseased and normal tissue can be increased by 10 times, which is significantly higher than traditional single-mode T 1 / T 2 contrast agents. Collectively, these findings demonstrate a rapid imaging strategy of dual-activation MR imaging of the acidic TME and simultaneous background suppression, thus paving the way for precise tumor malignancy differentiation, early tumor detection, and accurate tumor grading.
研究领域:
医学影像学
·
生物材料学
✓ 已验证
DOI
高影响因子
Journal of Water Process Engineering
·
2025
·
IF 6.7
Jiaxin Hu,Bingyuan Huang,Baoyu Li,Hongquan Fu,Juan Zhang,Hejun Gao,Yunwen Liao
The excessive use of tetracycline (TC) poses a significant threat to both the environment and human health. Therefore, there is an urgent need to develop tetracycline removal materials that are cost-effective, efficient, and easy to prepare in order to promote the development of society. In this study, we successfully prepared oxygen-enriched porous biochar (OPBC) from biomass starch through dual activation with bimetallic salt and hydrogen peroxide. The preparation process is streamlined by this method, resulting in a product with exceptional structural attributes: a large surface area of 1790 m 2 /g, an abundant pore structure, and a high oxygen content of 26 %. It has been demonstrated through experiments that OPBC possesses a remarkable adsorption capacity for TC in aqueous solutions, with a maximum capacity of 1357.9 mg/g. Theoretical calculations, corroborated by experimental data, indicate that the superior adsorption efficiency is predominantly attributed to the interaction between surface oxygen groups and TC molecules, enhanced by the elevated oxygen content on the surface. Furthermore, the results imply that hydrogen bonding, electrostatic interactions, π-π stacking, and the pore structure collectively contribute to the adsorption mechanism. This study not only presents a new, cost-effective, and efficient method for treating TC-contaminated water, but also offers a new perspective on the high-value utilization of agricultural by-products for environmental protection.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Jinyuan Zhang,Tian Shi,Tong Liu,Fuhua Gao,Da Cai,Pingwei Liu,Shenghong Yang,Yueli zhang
Combining upconversion materials with narrow-wide bandgap semiconductors to construct heterostructured composite photocatalysts effectively improves solar energy conversion efficiency. NYF:Ln 3+ (Ln = Yb,Er,Tm)@BiOX(X = Cl,Br,I) heterostructures were prepared by a two-step hydrothermal method. This work explores the effects of different lanthanide ion doping and narrow-wide bandgap bismuth oxyhalides on the performance of the heterostructures system. Under near-infrared (NIR) light irradiation, NYF:Yb,Er,Tm@BiOI degraded 94 % BPA within 160 min. Significantly, compared with NYF:Yb,Er@BiOCl, NYF:Yb,Er@BiOBr and the NYF:Yb,Er,Tm/BiOI mechanical mixtures, the photocatalytic activity of NYF:Yb,Er,Tm@BiOI was increased by 9.4 times, 3.7 times and 1.8 times, respectively. The enhanced photocatalytic activity is attributed to the doping of Er-Tm double-activated ions, which provides multiple upconversion emissions and forms more overlap in the narrow bandgap BiOI absorption spectrum, making it advantageous to utilize upconversion light fully. Eventually, an underlying mechanism was proposed that the existence of FRET in the NYF:Yb,Er,Tm@BiOI heterostructure leads to enhanced photocatalytic activity. This work provides new insights into the design of advanced structures for NIR-responsive photocatalysts.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2025
·
IF 7.2
Hongfang Liu,Jingying Miao,Zhihao Zhang,Shencheng Fu,Haiyang Xu,Xintong Zhang,Yichun Liu
Secure interaction of large-capacity 3D information urgently requires the development of an advanced encryption strategy. Although various types of photochromic holographic data storage are explored, building an accurate information encryption/decryption platform with simple preparation, high efficiency, and long-term stability remains a challenge. Herein, an ultra-security encryption platform based on large-scale and low-cost manufactured plasmonic plastics is proposed. Super optical lattices are constructed by the periodic arrangement of silver clusters in polyvinyl alcohol matrix, which enables the encrypted hologram to achieve precise mapping relationship between diffraction angle and optical chromaticity. Multiple pieces of holographically stereoscopic information with different image profiles and colors are cleverly hidden in a single recording point of the plastic. Only by determining the double-activated encryption keys of the observation angle and readout wavelength can the correct hologram pixels be displayed. The encrypted information in the super optical lattice is predicted to be stably stored for ≈91 years at room temperature (25 °C), covering almost one human cycle lifespan. The versatile configuration provides highly promising pathways for optical encryption, persistent data storage, and full-color displays.
研究领域:
光学
·
信息安全
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yixin Yang,Guorong Li,Dan Ouyang,Zongwei Cai,Zian Lin
Covalent organic frameworks (COFs) hold great promise in constructing a new-generation of molecular separation membranes . Significantly, ionic COF membranes endow novel functions distinct from those of neutral membranes. However, ionic COF membranes generally suffer from extremely slow reaction rates and low yields, limiting their widespread application. In this work, a self-standing anionic COF membrane was prepared by a dual-activation interfacial polymerization strategy. And the obtained anionic COF membrane possessed a unique ordered pore structure, superhydrophilicity, as well as good chemical stability. Meanwhile, the as-prepared membrane provided the high-efficiency water transport pathways with effective rejection for dye molecules. As expected, the anionic COF membrane exhibited an excellent water permeability of about 270 L m −2 h −1 bar −1 , which was much higher than those of commercial nanofiltration membranes, and also approximately 2–15 times significantly higher than those reported for polymer- or neutral COF-based nanofiltration membranes with similar rejection. Owing to the electrostatic attraction between positively charged dyes and anionic COF channels, the rejection rates of cationic dyes were above 96 %. In addition, the size-exclusion effect dominated rejection efficiency of dyes with molecular sizes larger than COF channels. These findings provided a new candidate membrane for efficient dye wastewater treatment .
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Hua Zhong,Guangju Zhu,Zhuozhuo Wang,Xiaochang Liu,Hua Zhang,Yanling Qiu,Daqiang Yin,Zhiliang Zhu
The decontamination of trace micropollutants from water environments is a widely concerned issue, and developing green and efficient adsorbent serves as an effective solution. In this study, using dual-activator modification method, an efficient hydrochar adsorbent was prepared through a two-step sequential process combining H 3 PO 4 hydrothermal treatment with K 2 CO 3 pyrolysis activation for carbamazepine (CBZ) adsorption removal. The results indicated that H 3 PO 4 facilitated the K 2 CO 3 activation process. The prepared hydrochar exhibited excellent adsorption properties due to its high specific surface area (1265.08 m 2 ·g −1 ) and aromatic porous mesh structure, with the maximum and dynamic adsorption capacity for CBZ of 376.11 and 296.98 mg·g −1 , respectively. The adsorption mechanism primarily involved pore-filling effects, π-π electron-donor–acceptor (EDA) interactions and hydrophobic interactions. Additionally, the obtained hydrochar material showed high adsorption efficiency for various pollutants and performed well in actual water samples. This study may provide theoretical and technical support for the development and application of high-efficiency hydrochar-based adsorbents.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Mingmao Chen,Ruyue Li,Yan Liu,Xiaorong Song,Jia Tian,Yulei Fu,Yingjie Yang,Chun Liu,Qiqing Zhang
As the effective photothermal agent, NIR cyanine dye has shown great promise in cancer therapy due to its distinct NIR absorbance and excellent thermal conversion superiority. Up to date, various nanosystems have been developed as the delivery carrier for NIR dye in order to overcome the inherent issues such as poor stability, low bioavailability and insufficient therapy efficacy. However, the huge obstacle of current nanocarriers for NIR dye encapsulation frequently lies in high leakage risk, complicated preparation and poor biocompatibility, which significantly hinder their further application in cancer therapy. To make up for these deficiencies, we developed a facile and universal strategy to fabricate a novel nanoscale coordination polymers (NCPs) through the co-coordination driven assembly of cypate and carboxyl ligand with Gd 3+ . Through this design, cypate can be effectively introduced into the interior of NCPs through the coordination between its carboxyl group and Gd 3+ , resulting in the enhanced stability, reduced leakage risk, and improved therapeutic efficacy. The fabricated NCPs have exhibited multimodal imaging guided tumor targeting chemo-photothermal property. After accumulation in tumor site, rapid drug release can be effectively triggered by NIR laser induced hyperthermia and acidic endo/lysosomal microenvironment, which fundamentally improved the synergistic chemo-photothermal efficacy for tumor killing. The newly fabricated NCP system can exert distinctively chemo-photothermal synergistic efficacy for cancer therapy and will pave a new avenue for the application of NCPs in biomedical field.
研究领域:
生物医学工程
·
癌症治疗
·
纳米技术
·
药学
✓ 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）