Materials Today Communications
·
2025
·
IF 4.5
Shengchao Yang,Jinpeng Qiao,Chao Kang,Mengyao Sun,Sheng Dong,Yuqian Zhao,Wenhao Sun,Yundong Yang,Chenlong Duan
Gallium is a strategic key metal, and its demand is increasing. Coal gangue is a kind of mine solid waste with huge reserves. Extracting gallium from coal gangue can realize high value-added utilization of solid waste. In this study, toluene-2,4-diisocyanate and polyether polyol were used to synthesize a new high-performance polyurethane foam adsorbent under triethanolamine catalytic. The feasibility of preparing polyurethane foams with different raw material ratios and the differences in their physicochemical properties were explored, and the optimal ratio of polyether polyol to toluene-2,4-diisocyanate was found to be 3.5. Adsorption tests of gallium ions in gangue acid leachate were carried out to determine the feasibility of adsorption of gallium by polyurethane foam in low gallium concentration solution, and the adsorption rate was 83.90% under the optimal conditions. The adsorption mechanism of polyurethane foam was revealed, indicating that Ga 3+ complexed with Cl - adsorbed on polyurethane groups (—COONH—), before adsorption need to use hydroxylamine hydrochloride to remove Fe 3+ in solution. The adsorption process can be described by pseudo-second-order kinetic model, conforms to Langmuir adsorption model, and belongs to the chemisorption. The reaction belongs to endothermic reaction. The foam still has good adsorption effect after multiple adsorptions, which opens up a new way for the recovery and utilization of gallium in coal gangue.
研究领域:
材料科学
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环境科学
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冶金工程
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产品关联
DOI
高影响因子
TALANTA
·
2019
·
IF 4.916
Xiaojun He,Chenglin Wu,Yuna Qian,Yahui Li,Feng Ding,Zhihua Zhou,Jianliang Shen
The semi-metallic element gallium has repeatedly shown bio-activities in preclinical and clinical studies. Gallium derivatives have already entered clinical trials for treatment of various refractory malignancies. To better monitor or track the status of administered gallium compound, herein a novel fluorescent probe N,N',N'',N'''-Tetrakis(2-hydroxybenzylidene)biphenyl-3,3',4,4'-tetramine (bis-salophen) has been designed and synthesized. The bis-salophen probe was found to recognize gallium ions (Ga 3+ ) with high selectivity and sensitivity over other cations via fluorescence “turn on” strategy. The spectroscopy results exhibited a 1:2 stoichiometry for probe and Ga 3+ , and the association constant and limit of detection were calculated as 8.85 × 10 6 M −1 and 13.0 nM, respectively. Additionally, base on spectroscopy and theoretical research, the mechanism of Ga 3+ sensing action was explored by density functional theory (DFT), which indicated suppression of photoinduced electron transfer (PET) action along with the interruption of π-conjugation between salicylaldehyde and 3,3-diaminobenzidine backbone by Ga 3+ ions. Furthermore, the biological applicability of bis-salophen probe were evaluated in various normal and cancer cell lines, results have shown that this probe is highly selective and sensitive for cancer cells. Finally, zebrafish imaging confirmed and indicated that the probe is also capable of examining Ga 3+ ions. Collectively, these results suggest that we have successfully developed a novel probe for selective and sensitive detection of Ga 3+ ions both in living cells and zebrafish. We expect that our work here will shed light on future development of Ga 3+ detecting probes and wider application in the filed of biology and medicine shall be anticipated.
研究领域:
生物化学
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医学
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分析化学
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产品关联
DOI
PubMed
高影响因子
ANALYST
·
2021
·Vol. 146
·期 23
·7294-7305
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IF 4.616
Lijuan Yang,Mingxin Li,Yunyun Wang,Yan Zhang,Zhipeng Liu,Shutang Ruan,Zhonglong Wang,Shifa Wang
A novel fluorescent probe 2-(4-(diethylamino)-2-hydroxybenzylidene)-N-(2,3,3-trimethylbicyclo[2.2.1]heptan-2-yl)hydrazinecarbothioamide (HT) was prepared in this study by a condensation reaction. HT has been confirmed to possess high specificity toward Ga3+ over other metal ions (including Al3+ and In3+) via a distinct fluorescence light-up response. Moreover, HT exhibited good detection performances for Ga3+ including high selectivity, excellent anti-interference ability, a wide working pH range, and good reversibility. The association constant and limit of detection (LOD) were calculated to be 5.34 × 103 M−1 and 1.18 × 10−6 M, respectively. The detection mechanism of HT toward Ga3+ was proposed and confirmed by 1H NMR analysis, HRMS analysis, and DFT calculations. A simple test strip-based portable detecting device and a molecular INHIBIT logic circuit were established for improving its practical applicability. Furthermore, the desirable sensing performance of HT for Ga3+ was successfully reconfirmed in MCF-7 cells and zebrafish.
研究领域:
分析化学
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生物医学
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产品关联
DOI
PubMed
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2023
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IF 16.5
Feng Li,Xiaolong Tang,Zhuofeng Hu,Xiangming Li,Fang Li,Yu Xie,Yanbin Jiang,Changlin Yu
Hydrogen peroxide (H 2 O 2 ) is a green oxidant that is widely used in daily life and industry. Artificial photocatalytic synthesis of H 2 O 2 is a green and sustainable scheme, but the high complexation rate of electron-hole pairs during photocatalysis and the low activation capacity of the catalyst for O 2 greatly inhibit the oxygen reduction reaction. Herein, the first synergistic modification of In 2 S 3 using ion doping and vacancy modulation is used in this paper. An In 2 S 3 -based photocatalyst containing S vacancies and Ga 3+ ions is designed and synthesized. After continuous irradiation under visible light ( λ ≥ 420 nm) for 1 h, the H 2 O 2 concentration of the system reaches 352.58 μmol L –1 , which is 7.5 times than that of pure In 2 S 3 , and the apparent quantum yield at 450 nm is 4.64%. Appropriate concentrations of S vacancies promoted O 2 adsorption, and theoretical calculations demonstrates that Ga 3+ ions and S vacancies synergistically promote O 2 activation and more favorable for 2e – oxygen reduction reaction. All these phenomena facilitate H 2 O 2 generation. Furthermore, ESR analysis and radical trapping experiments show that the interaction between superoxide anion radicals (•O 2 – ), singlet oxygen ( 1 O 2 ), h + , and proton donor (isopropanol) in the solution phase plays a key role in the photocatalytic synthesis of H 2 O 2 , which has been largely neglected in previous studies. We suggest that the S vacancy-regulated Ga 3+ ion-doped In 2 S 3 catalyst could provide a reference for the design of high-performance materials for the photocatalytic production of hydrogen peroxide.
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
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Chen Li,Chuncai Zhou,David French,Ian T. Graham,Zixuan Wang,Yunfei Li,Feng Wang,Guijian Liu
As strategic emerging industries represented by clean energy technologies develop rapidly, gallium (Ga), one of the critical elements due to its use in these technologies and limited supply, has attracted worldwide attention. The discovery of appropriate materials to adsorb Ga is crucial for improving the utilization of Ga resources. With the goal to recover Ga ions more efficiently and selectively, carbon nanotubes (CNTs) and amino-functionalized MIL-53 series metal–organic skeletons were hydrothermally synthesized into CNT/NH2-MIL-53(Fe) composite adsorbents. The composite's morphology, structure, chemistry and other physicochemical features were characterized, and the adsorption conditions including pH, initial Ga concentration, along with adsorbent dosage were optimized. The outcomes suggest that 2-CNT/NH2-MIL-53(Fe) performs better than the unmodified material in adsorption, and the theoretical maximum adsorption amount of Ga is 1483.8 mg g−1. The adsorption exhibited a single layer chemisorption with an endothermic spontaneous reaction. The adsorption mechanism for Ga onto 2-CNT/NH2-MIL-53(Fe) was mainly via ion exchange and chelation, accompanied by hydrogen bond interaction. The outstanding adsorption capacity and reproducibility using CNT/NH2-MIL-53(Fe) composites provide a novel method for adsorbing Ga from aqueous solutions.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
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2022
·
IF 3.428
Bo Meng,Shenyong Ren,Zhi Li,Weiyu Song,Qiaoxia Guo,Baojian Shen
Decreasing steam treating temperature of zeolite Y to prepare USY has great attraction for industrial production of FCC catalysts, which is often operated at high temperature thus leading to huge energy consumption. Heteroatoms in the framework of zeolite Y are easier to be removed under steam condition, but the introduction of heteroatoms often leads to the decrease of relative crystallinity of zeolite. When Ga 3+ is introduced into the framework of zeolite Y, high crystallinity is well maintained in this work. Interestingly [Al, Ga]-NaY can be treated at low steam temperature to form [Al, Ga]-USY with very good mesoporosity and high framework SiO 2 /Al 2 O 3 ratio. The sample [Al, Ga]-NaY-8 has a distinctive micropore size distribution at 0.92 nm which is much bigger than conventional microporous NaY. DFT study disclosed the reason of low temperature steam treatment. The catalytic cracking of 1,3,5-TIPB and n -octane showed that the catalyst [Al, Ga]-USY obtained at lower steam treating temperature presented good performance.
研究领域:
化学工程
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材料科学
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Shiying Fan,Yao Liu,Zetao Zhang,Mengnan Huang,Yuejiao Wang,Jing Gao,Ying Xiong
Three-dimensional mesoporous silica is a distinctive nanomaterial celebrated for its unique structure, substantial specific surface area, enhanced utilization of active surfaces, and improved adsorption and catalytic reaction capabilities. Nevertheless, its limited surface functional groups often impede its effective ion adsorption capacity. Here, inspired by the mussel-adhesive phenomenon, in this study, we introduced a straightforward layer-by-layer assembly approach to fabricate a new series of KIT-6@x-catechol/polyethyleneimine composites, the catechol/polyethyleneimine is the shell and KIT-6 is the core. Importantly, catechol(CA) and polyethyleneimine(PEI) polymers as selective layers with dense structures and abundant cation exchange groups, resulting in outstanding adsorption performance for our material. At a pH of 3.0, Ga(III) exhibited a maximum adsorption capacity of 88.65 mg g −1 on the adsorbent. Furthermore, the adsorbent demonstrated selective adsorption capabilities for Ga(III) over Ge(IV), Al(III), Cu(II), Zn(II), and Co(II). The primary adsorption mechanism of KIT-6@x-CA/PEI is chelation that occurs through coordination between the O atom on the phenolic hydroxyl group of CA and Ga 3+ , Ga(OH) 2+ , Ga(OH) 2 + under pH 3.0 conditions. In summary, the synthesized KIT-6@x-CA/PEI exhibits significant potential for water treatment containing Ga(III) through adsorption processes.
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
ANALYST
·
2019
·Vol. 144
·期 12
·3807-3816
·
IF 4.019
Xiaojun He,Chenglin Wu,Yuna Qian,Yahui Li,Lilei Zhang,Feng Ding,Hong Chen,Jianliang Shen
Over the past decades, gallium (Ga) compounds have gained importance in the field of cancer treatment. Gallium acts as an iron mimic and disturbs iron-dependent propagation and other processes in tumor cells. However, the toxicity of gallium was also well documented in vitro and in vivo in animals. Though the oral administration of gallium in humans is less toxic, it has also been shown that a long period of administration could induce tumor fibrosis. Chromium (Cr), a naturally occurring heavy metal, is commonly used in industrial processes and can cause severe health problems in humans. It has been found to be closely involved in the metabolism of nucleic acids, proteins and fats in humans. Cr(III) salts can be used as micronutrients and dietary supplements. However, similar to gallium (Ga3+), chromium (Cr3+) can build up to an excessive degree that is harmful to the human body. Therefore, it would be of great interest to develop chemosensing for the selective and sensitive detection of gallium and chromium ions in vitro and in vivo. Herein, we reported that an NBD-based (4-chloro-7-nitrobenzo-2-oxa-1,3-diazole) fluorescent probe (NBDT) was fabricated with demonstrated extraordinary specificity and sensitivity. A swift response toward Ga3+ and Cr3+ ions was discovered using fluorescence enhancement over a wide pH range and with cycle stability. Furthermore, lighted up by Ga3+ and Cr3+ ions in vitro, this NBDT sensor was successfully applied to detect exogenous Ga3+ and Cr3+ ions in MDA-MB-231 and HepG2 cells. Additionally, using zebrafish as the in vivo model, we demonstrated the capability of this NBDT for detecting and imaging Ga3+ and Cr3+ ions in zebrafish. Taken together, this NBDT has indicated great potential for detecting and monitoring Ga3+ and Cr3+ ions in vitro and in vivo.
研究领域:
生物化学
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医学
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分析化学
✓ 已验证
DOI
PubMed
高影响因子
MINERALS ENGINEERING
·
2021
·
IF 4.765
Lihui Gao,Lizhang Wang,Yijun Cao,Shulei Li
A gallium ion-imprinted material (Ga-IIP-PP) was fabricated from persimmon peel using persimmon tannin as a functional monomer. Thereafter, it was applied for the selective adsorption of Ga ions from aqueous solutions containing other metal ions. The sorbent morphology and surface characterization data confirmed the successful loading of a gallium-imprinted layer onto the waste persimmon peel. The imprinted material exhibited a relatively smooth structure with few wrinkles, a negatively charged surface, and a low number of hydroxyl surface functional groups. The results of adsorption experiments revealed that Ga-IIP-PP could be applied in a wide range of Ga concentrations, while its highest adsorption capacity of 128 mg/g and adsorption rate of 0.0081 min −1 were achieved at pH = 3. Moreover, the synthesized Ga-IIP-PP exhibited high selectivity toward Ga ions even in binary systems with similar competitive ions. Finally, Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy were performed to elucidate the adsorption mechanism of Ga ions onto the Ga-IIP-PP surface, which primarily involved electrostatic adsorption and the cation exchange between the H + ions of OH/ COOH groups and Ga ions. This work demonstrates that the bio-sorbent prepared from waste persimmon peel is a promising adsorbent for recovering Ga ions from aqueous solutions.
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
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Yang Yang,Weishuang Fang,Ning Zhang,Huaicheng Xiang,Ying Tang,Jie Li,Liang Fang
CaEu C O 4 ( C Ga, Al) microwave dielectric ceramics were produced through a solid-state reaction. Orthorhombic olivine CaEuGaO 4 ( pnma ) exhibits a lower permittivity ( ε r = 9.7), a higher quality factor ( Q × f = 82,049 GHz), and a larger negative resonant frequency temperature coefficient ( τ f = −54.6 ppm/°C). CaEuAlO 4 , which has a similar chemical formula, exhibits a perovskite-like structure ( I 4/ mmm , K 2 NiF 4 -type), and its microwave dielectric properties are ε r = 18.9, Q × f = 43,132 GHz, and τ f = −1.6 ppm/°C. The difference in their structures is mainly caused by the properties of the Ga (III) atom. The difference in their dielectric properties can be proved to be affected by the “rattling” effect of Eu 3+ through the bond valence theory. The relationship between the covalence ( f c ) and the bond strength ( S ) was investigated, and the higher bond strength might be the main reason for the higher Q × f in CaEuGaO 4 ceramic.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Mengmeng Zhang,Qian Sun,Yuejiao Wang,Weijun Shan,Zhenning Lou,Ying Xiong
Reported powdery adsorbents with poor adsorption efficiency and stability make it imperative to develop novel materials to extract gallium ions (Ga(III)) from effluents. Herein, UiO-66-NH 2 -based mixed matrix membranes (TPU/0.1THB/U6N-1.5 MMMs) via electrospinning is firstly reported for separation and recovery of Ga(III). TPU/0.1THB/U6N-1.5 MMMs efficiently overcomes multiple bottlenecks of powder UiO-66-NH 2 , including poor stability, reusability and adsorption capacity. Its maximum adsorption for Ga(III) is 96.18 mg·g −1 at pH 10.0. It has superiority in selective adsorption of Ga(III) from Al(III), Cu(II), Zn(II), Co(II) coexistence solution. Adsorption capacity of TPU/0.1THB/U6N-1.5 for Ga(III) reaches more than 80% after 9 cycles. Specially, it still retains excellent mechanical strength, flexibility and structural integrity after 12 h filtration, or after 9 adsorption-desorption cycles, even soaked in 5 mol·L -1 HCl for a week. TPU/0.1THB/U6N-1.5 MMMs also improves the problem of low water flux. TPU/0.1THB/U6N-1.5 with high MOFs loading possess high water flux of 382.2 L·m −2 ·h −1 with a permance of 382.2 L·m −2 ·h −1 ·bar −1 and rejection rates of 90% for Ga(III). The main adsorption mechanism of TPU/0.1THB/U6N-1.5 is based on the chelation between phenolic hydroxyl groups of MMMs and Ga(III) at pH 10.0. Overall, the as-prepared TPU/0.1THB/U6N-1.5 has potential for water treatment through the process of membrane adsorption.
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
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Xueying Wang,Yida Lei,Liang Shi,Jie Li,Lichuan Jin,Yulong Liao,Kui Liu,Huaiwu Zhang
The adjustment of crystal structures and properties by ion substitution has received increasing interest in recent years to solve issues related to the preparation of LTCC microwave devices. In this work, Fe 3+ ions were substituted in BaFe 12 O 19 sintered at a low temperature (920 °C). The changes in microstructures, dielectric characteristics, and magnetic properties were all examined. The ferromagnetic resonance linewidth (Δ H ) of BaM ferrite was measured at magnetic fields from 6000 to 24,000 Oe. The results revealed well-grown microstructures of BaM ferrite grains at 920 °C to form typical hexagonal structures. The increase in substitution of Ga 3+ ions decreased the lattice constant and cell volume of the crystals. More interestingly, the dielectric and magnetic properties depicted significant changes in the original dielectric and magnetic parameters of BaM after the substitution of Ga 3+ ions. The permittivity ( ε′ ) rose to a maximum of 16.36 at x = 0.4, while the dielectric loss angle tangent (tan δ ε ) declined to 1.2 × 10^ −3 . As Ga 3+ ions rose, the saturation magnetization 4π Ms decreased from 3168.58 Gauss to 2571.18 Gauss. The remanence ( Mr ) reached a maximum value of 31.07 emu/g at x = 0.4. The ferromagnetic resonance linewidth (Δ H ) of BaM ferrite sample at 31 GHz attained a minimum value of 4216.336 Oe at x = 0.8. In sum, these findings look promising for future fabrication of LTCC microwave RF devices.
研究领域:
材料科学
·
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）