SENSORS AND ACTUATORS B-CHEMICAL
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2016
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IF 4.758
Jun Qin,Xiaomei Li,Zezhong Chen,Feng Feng
Commercially available 9-bromophenanthrene (9-BrP) was used as fluorescence probe for determination of trace palladium (Pd). Under the catalysis of Pd 2+ , 9-BrP is converted to phenanthrene, which can emit stronger fluorescence. Consequently, fluorescence of Pd sample is greatly enhanced, and the enhancement is positively correlated with the concentration of Pd 2+ . The catalytic reaction exhibits excellent selectivity and specificity, which enables a simplification on the pre-treatment of real sample. The method has a wide linear range of 0.07–18 μM and a detection limit of 50 nM for Pd 2+ . Detection and recovery experiments of Pd in lake water, Pd-carbon catalyzer and surface soil are also satisfactory, indicating that the method has better feasibility and application potential in routine determination of Pd.
研究领域:
分析化学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Rui Gao,Shen Zhang,Hailong Liu,Zhizhou Yang,Yue Wu,Sheng Gao,Mei Li,Hanlin Shao,Mingjie Wu
Disposal of dye-contaminated wastewater has become an imperative issue. Synthesis of novel materials for larger-capacity removal of those contaminants assisting by special interaction is a significant challenge. In this paper, a series of hyper-crosslinked poly 9-bromophenanthrene hybrids (HCPs) were synthesized by combination of 9-bromophenanthrene (9BP) and octavinylsilsesquioxane (OVS) via Friedel-Crafts alkylation reaction. The synthesized HCPs were well characterized. The results illustrated that HCPs were porous polymer hybrids consisting of micropores and mesopores with the apparent surface areas ( S BET ) in range of 980.0–1010.6 m 2 g −1 , and the micropore and mesopore widths located at 1.42 and 4 nm. Dye adsorption disclosed that the adsorbed amounts of rhodamine B (RB) and Congo red (CR) on HCP-2 respectively arrived at 2646.0 ± 37.4 and 1550.0 ± 38.5 mg g −1 , ascribing to the interactions of pore filling, hydrogen bonds, π π stacking, electrostatic attraction, especially the C Br⋯π interaction between the resulting polymers and the dye molecules of RB and CR. Moreover, HCP-2 exhibited larger adsorbed amount of iodine vapor arriving at 179.9 ± 2.6 wt%. This work provided an innovative strategy to design new adsorbents for larger-amount removal of contaminants from the environment.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2016
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IF 4.758
Jun Qin,Xiaomei Li,Yunfeng Bai,Feng Feng,Qiliang Pan,Jianguo Zhao
A novel mesoporous silica-deoxycholate (MS-NaDC) synergistic substrate was developed for room-temperature phosphorescence (RTP) sensing and analysis. The substrate exhibited rapid and strong RTP-inducing ability toward 9-bromophenanthrene (9-BrP). The formation mechanism of MS-NaDC synergistic substrate was analyzed and demonstrated. Five MSs with pore size range of 2.73–18.58 nm were synthesized and investigated, and the MS designated as LPMS2 was selected for its rapid RTP protection and good stability in dispersions. RTP in the presence of MS-NaDC substrate also shows good thermostability. Assistant inducers, such as cyclohexane, can be used together for further RTP enhancement. Finally, 9-BrP holds a fairly wide linear concentration range of 2 nM–3 μM, and a detection limit of 0.5 nM. All the results demonstrated the feasibility and application potential of the MS-NaDC substrate in RTP.
研究领域:
分析化学
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材料科学
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生物传感器
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纳米医学
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分子探针
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环境监测
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Zhenjiang Li,Huifeng Tian,Sasaki U,Xudan Huang,Mouyang Cheng,Xiaocang Han,Yinghang Ma,PeiChi Liao,Zhixin Yao,Yihan Wang,Lina Yang Zhang,Ge Yin,Yijie Luo,Wenxi Li,Xuanyu Zhang,Junjie Guo,Xiaoxu Zhao,Lifen Wang,Ji Chen,Lei Liu
Amorphous monolayer carbon (AMC), a new type of carbon nanomaterials created by merging modulations of the crystallinity and dimension, is of particular research interest since it has shown unprecedented properties that its crystalline counterpart–graphene–does not possess. The conductivity of AMC is controlled by its degree of disorder and can be continuously tuned with nine orders of magnitude. As one emergent carbon nanomaterial, the fundamental properties of AMC and its potential in applications remain largely unexplored. However, its current synthesis relies on one specific, lab-synthesized molecule, hampering further extensive investigations. Here, the feasible synthesis of AMC is reported by chemical vapor deposition using commercial polycyclic molecules, which prove to be effective in repeatably obtaining AMC with a controllable degree of disorder and large sizes. By the backward-compatible regrowth, the in-plane, crystalline-amorphous heterostructures are demonstrated in one monolayer of carbon with mechanical continuity across the homojunction. Conductance measurements confirm in such monolayers the precise controls over both the spatial location and electrical properties, which are not only conductive or insulating but continuously tuned. These results represent a significant step toward understanding the mechanism of AMC growth and pave the way for electronic devices using 2D amorphous materials.
研究领域:
材料科学
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纳米技术
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凝聚态物理
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化学合成
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电子工程
✓ 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）