Metals
·
2022
·Vol. 12
·期 4
·579
·
IF 2.695
Wanyi Zeng,Lei Xu,Qiongling Wang,Chen Chen,Minglai Fu
Considering environmental friendliness and economic factors, the separation and extraction of indium under acidic conditions are of great significance. In this research, metal-organic frameworks (MOFs) of UiO-66 were successfully prepared and used for the separation and adsorption of indium. The properties of UiO-66 were structurally characterized using powder X-ray diffraction (XRD), Fourier-Transform Infrared Spectroscopy (FTIR), Brunauer-Emmett-Teller surface area analyzer (BET), thermogravimetric analysers (TGA) and Scanning Electron Microscope (SEM). The results show that UiO-66 can resist acid and keep its structure unchanged, even at a strong acidity of pH 1. The adsorption performance of UiO-66 to indium (III) was also evaluated. The results show that the adsorption process of indium ions was by the Langmuir adsorption isotherm, with a maximum adsorption capacity of 11.75 mg·g−1being recorded. The adsorption kinetics experiment preferably fits the second-order kinetic model. A possible mechanism for the adsorption of In(III) by UiO-66 was explored through X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared analysis(FT-IR). It was concluded that the C=O of free –COOH of UiO-66 was involved in the adsorption of In(III) by cation exchange. This study indicates, for the first time, that UiO-66 can be applied as an acid-resistant adsorbent to recover indium (III).Keywords:UiO-66;MOFs;Adsorption;Indium recovery
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 ANALYTICAL AND APPLIED PYROLYSIS
·
2025
·
IF 6.2
Juan Cai,Boyan Zhang,Jiatao Dang,Yunpeng Zhao,Dingcheng Liang,Qiang Xie,Jinchang Liu
The migration, transformation, and enrichment of strategic metal elements in coal in the process of coal processing and utilization are significant for their effective extraction and application. In this work, the migration, transformation, and enrichment of Li, Ga, Ge, In, and Re during coal pyrolysis were investigated by six-step sequential chemical extraction. The results showed that Li mainly exists in a residual state in raw coal and pyrolytic products under 500 ℃; however, the content of sulfide state Li increases largely when the pyrolysis temperature exceeds 500 ℃. Ga mainly enriches in residual form, and the content of Ga in the residual state rises with the pyrolysis temperature increasing. Ge mainly presents in the form of carbonate-binding state, sulfide state, and residual state. As the temperature rises to higher than 500 ℃, Ge combines with the carbon and oxygen compounds produced by pyrolysis to form a carbonate-binding state, resulting in a significant increase in its content. The content of Ge in the residual state also increases significantly. The ratio of carbonate-binding state and organic state In gradually decreases with the increase of pyrolysis temperature, while that of residual state In gradually increases. Due to the low content of Re, the reliability of the test results is poor. However, Re may exist in sulfide, organic, and residual states. With the pyrolysis temperature increasing, Li, Ga, Ge, In, and Re in pyrolysis products are more likely to combine with aluminosilicate than those in raw coal.
研究领域:
能源科学
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环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
Soft Matter
·
2022
·Vol. 18
·期 19
·3762-3770
·
IF 4.046
Jilei Chen,Wenrong Fu,Jiaqiang Xiong,Wei Zhang,Feng-Lei Jiang,Liuchun Zheng,Yi Liu,Peng Jiang
Three-dimensional (3D) self-assembled quantum dot (QD) aerogels have attracted attention due to the combined properties of both QDs and porous materials. However, the difficulty and complexity of structural composition control limit the practical application of 3D self-assembled QDs. Hence, convenient, available and multifunction QD aerogels need to be explored to promote broader practical applications. Herein, we propose a universal and facile self-assembly method of copper indium selenium (CISe) QD aerogels based on coordination interaction between Zn2+ and carboxyl. Both experiments and Monte Carlo simulations indicate that QDs are aggregated into oligomers by Zn2+, and then the oligomers are gradually interconnected to each other to form a 3D network as the concentration of Zn2+ increases. Moreover, Zn2+-induced 3D self-assembled aerogel could be depolymerized by EDTA reversibly. In combination with CISe QDs, Zn-CISe aerogel has been successfully applied in green pollution-free environment-friendly anti-counterfeiting and encryption systems.
研究领域:
材料科学
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纳米技术
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化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Zidong Tan,Xin Jin,Yong Zhen,Chang Wei,Xingbin Li,Zhigan Deng,Minting Li
Selective extraction of indium and germanium from natural resources due to their important role in high-tech fields is attracting more and more attention. In this paper, indium and germanium were recovered from In-Ge residue leaching solution by the selective solvent extraction of indium with D2EHPA and the precipitation of germanium using tannin. This process included two main stages: indium-selective solvent extraction and germanium-selective precipitation. In the first stage, indium was extracted by using an organic phase containing 15% D2EHPA and 85% kerosene. The indium-loaded organic phase was washed with 0.5 M H 2 SO 4 and then stripped by 4 M HCl solution to obtain an indium extraction ratio of 99% and a stripping ratio of 98.3%. In the second stage, the pH of the raffinate was adjusted to 3.5–4.0 with ZnO dust and then mixed with tannin. Germanium (99%) was selectively precipitated as a tannin-germanium complex. The washed tannin-germanium complex was baked at 500 °C for 3 h to produce a germanium concentrate. By studying the separation coefficients of indium, germanium, and zinc (1994 and 1093, respectively), and controlling the reaction conditions, the maximum separation of indium, germanium, and zinc was obtained. The extraction mechanism of indium from sulfuric acid solution by D2EHPA and element migration during the precipitation of germanium using tannin were also studied. This proposed process flow can be used to selectively recover germanium and indium from In-Ge residue leaching solutions.
研究领域:
冶金学
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材料科学
✓ 已验证
DOI
高影响因子
ACS Omega
·
2022
·
IF 4.132
Wenjing Fu,Cundi Wei,Jing Zuo,Jiupeng Zhang,Jinyi Zhang,Shaonan Xu
The Al sheets alloyed by Ga-In-Sn are generally utilized to react with water for H2 production, while the valuable byproducts, i.e., alumina hydrates, have not been fully studied. In this work, through controlling the reaction temperature, three types of alumina hydrates, bayerite (40 °C), pseudo-boehmite (PB) (70–120 °C), and boehmite (130–160 °C), were successfully prepared based on a series of interface reactions and structural transformations. These alumina hydrates and their calcined products (alumina) possess high purity with a total impurity element content of <450 ppm, especially an extremely low sodium content (<21 ppm) and iron content (<52 ppm). Significantly, the obtained pseudo-boehmite displays excellent surface properties (specific surface area: 332.7 m2 g–1, pore volume: 0.3 cm3 g–1, and pore diameter: 3.6 nm), competitive to the current commercial SB powder by Sasol. This work not only deepens the understanding of the byproducts in a Ga-In-Sn-alloyed Al–water reaction but also establishes a facile “green” method oriented to industrial applications, which is promising for the linkage benefits of the hydrogen production industry.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Chemistry Frontiers
·
2020
·Vol. 5
·期 1
·430-437
·
IF 6.788
Mengyu Hong,Jingjing Meng,Huihui Yu,Junli Du,Yang Ou,Qingliang Liao,Zhuo Kang,Zheng Zhang,Yue Zhang
Zinc oxide (ZnO) has been widely considered as a promising candidate in electro-chemical devices due to the high electrical transport performance and easy-fabrication. However, the active chemical properties of ZnO nanobelts restrict their application in practical electro-chemical devices. Here, we adopted an indium doping strategy to improve the corrosion resistance of ZnO nanobelts. Compared with other atomic doping methods, the indium doping method not only formed several layers of indium atoms in the body of ZnO nanobelts but also created a ZnxIn1−xO passivated layer on the ZnO nanobelt surface. After doping indium atoms into ZnO nanobelts, the self-corrosion potential increased and the self-corrosion current decreased which greatly reduced its corrosion rate in the electrochemical solution. Furthermore, the electrical transport properties of indium-doped zinc oxide (In–ZnO) nanobelts presented ultrahigh stability even after being soaked in the electrochemical solution for 43 hours. The enhanced anticorrosive quasi-2D ZnO nanobelts offer a promising development of ZnO-based electro-chemical devices.
研究领域:
材料科学
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纳米技术
·
电化学
✓ 已验证
DOI
高影响因子
ACS Sensors
·
2025
·
IF 9.1
Tianrun Zheng,Yi Lu,Yilin Wang,Hong Zhou,Kang Yang,Mingxue Zhang,Yueying Liu,Fengmin Liu,Geyu Lu
Optimizing and improving the surface activity of Co3O4 sensing materials are crucial for applications in triethylamine detection. Herein, indium-doped Co3O4 hollow microflowers (InCo HMfs), assembled from ultrathin nanosheets, were prepared via a hydrolysis reaction. Three distinct crystal facets─{1 1 0}, {1 1 1}, and {0 0 1}─were observed in 2-InCo HMfs. Results from TEM, XPS, and XAS characterization show that the increase of Co2+ content induced by indium doping promotes the formation of highly active crystal planes in Co3O4. DFT calculations revealed the reasons for the improvement in the gas sensing performance of 2-InCo HMfs and the multiple effects of In ions. Our dual strategy of doping with indium and hydrolysis markedly improved the intrinsic TEA sensing performance of Co3O4, offering a novel avenue for designing high-performance TEA sensors.
研究领域:
材料科学
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化学传感器
·
表面化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2020
·
IF 2.463
Xingbang Dong,Huanjun Zhang,Yang Yang,Shiquan Feng,Zheng Wang,Chaosheng Yuan,Kun Yang,Xuerui Cheng
InNbO 4 and InNbO 4 :Eu 3+ phosphors were synthesized by solid-state reaction method. The structural stability and crystal field under high pressure are investigated up to 34.5 GPa using in-situ Raman and luminescence spectra . The evolution of Raman and luminescence spectra with pressure of InNbO 4 revealed one reversible phase transition at around 12 GPa. A progressive red shift and luminescence quenching were observed for InNbO 4 :Eu 3+ phosphors during compression. The pressure-induced variation of local environment and crystal field around Eu 3+ ions was analyzed using Judd–Ofelt (J-O) intensity parameter Ω 2. Both the parameter Ω 2 and luminescence property were indicative of a pressure-induced lower asymmetry around Eu 3+ sites in InNbO 4 . These results suggest that the pressure has a great influence on fluorescence intensity and energy levels of Eu 3+ ions.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Wenxin Liu,Jiabin Zou,Shuni Li,Jinkun Li,Feihu Li,Zili Zhan,Yeguang Zhang
Hydrogen sensors are easily deactivated by hexamethyldisiloxane (HMDSO) poisoning. Moreover, the existing anti-poisoning strategies can also damage the overall sensing performance of these hydrogen sensors. Therefore, a new bilayer design with a Pd/In 2 O 3 sensitive layer and an In 2 O 3 /Al 2 O 3 catalytic filter layer is proposed to avoid the deactivation of hydrogen sensors. The In 2 O 3 /Al 2 O 3 layer helps in hindering HMDSO and its decomposition products from reaching the Pd/In 2 O 3 layer. The H 2 response of the sensors is enhanced due to the small size of In 2 O 3 and the electronic sensitization of Pd. As a result, the bilayer sensors exhibit high response (Ra/Rg = 53) and ultra-fast response time (1 s) towards 3000 ppm H 2 at 365 °C. The resistance and the H 2 response of the bilayer sensors are almost unchanged after 40 min of 10 ppm HDMSO poisoning. In this paper, the mechanism of resistance against silicone poisoning and the H 2 response of the bilayer sensors are discussed from the separation of sensing and catalytic filtration reactions to the behavior of adsorbed oxygen.
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2014
·Vol. 5
·期 1
·628-634
·
IF 3.708
Mingming Liu,Wei Yao,Cun Li,Zhenyu Wu,Liang Li
Strongly luminescent copper and indium co-doped CdS quantum dots (CuIn-doped CdS QDs) were synthesized from copper iodide, indium acetate, cadmium oleate, and 1-dodecanethiol as starting compounds in octadecene solvent. We demonstrated that when co-doping with In, Cu ions can homogeneously dope into CdS QDs and exist in the +1 state. The as-prepared doped QDs exhibited photoluminescence (PL) in the range of 590–800 nm, with a maximum fluorescence quantum yield (QY) of 40%. They also exhibited tunable large Stokes shifts from 100 nm to 300 nm via tuning dopant concentrations of Cu and In. Such an extremely large Stokes shift dramatically decreased the self-reabsorption of QDs. Furthermore, the CuIn-doped CdS QDs exhibited excellent thermal stability and lost only approximately 20% of their emission QY when the temperature was increased from 20 °C to 150 °C. These features make these QDs suitable as emitters for application in lighting.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Chen Shao,Jian Zhang,Yuqing Liu,Yuting Jiang,Yanping Jia,Guomin Li,Zhong Sun
The presence of antibiotics such as Tetracycline (TC) in the water environment poses new challenges to traditional water treatment technologies . Simple and clean electrocatalytic technology has been widely used in the degradation of antibiotic-based wastewater. In this study, agarose (AG) was loaded onto ITO using an impregnation method, and Pd was deposited onto the AG/ITO electrode by electrodeposition , the Pd/AG/ITO composite electrode was prepared. The electrode was then observed and analyzed using SEM , XRD , FT-IR, and XPS . The optimal conditions for the electrocatalytic reaction were explored as follows: PdCl 2 concentration of 0.20 mmol/L, PdCl 2 deposition current of 3 mA, deposition time of 10 min, and degradation current of 8 mA. Under these optimal working conditions, the Pd/AG/ITO composite electrode achieved a degradation efficiency of 85.21% within 120 min. Through five replications, the degradation efficiency of the electrodes decreased by less than 3.50%, which indicated its good reusability and stability. Based on the generation of active substances during degradation and the analysis of LC-MS, potential degradation products , and degradation pathways were deduced, and it was proposed that the degradation of TC was completed by a synchronous redox reaction co-led by·OH and H*. Toxicity analysis of TC and its degradation products was performed using ECOSAR software. This study will promise to provide an effective method of degrading TC wastewater.
研究领域:
环境科学
·
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Cheng Huang,Kun Li,Hong Zhang,Wenwen Zhang,Yanlin Sun,Shujie Xing,Ying Shao,Jing Zhu,Yalan Chen,Long Chen
In this study, a solid adsorbent based on Chinese gallotannin and chitosan was generated and applied to adsorb rare and scattered metals, including Ge (Ⅳ), Ga (Ⅲ), and In (Ⅲ), from simulated zinc plant leachates. Fourier-transform infrared spectroscopy (FTIR) and solid state nuclear magnetic resonance (SSNMR) were performed to characterize the grafting way of Chinese gallotannin on the chitosan matrix. It was clearly showed that Chinese gallotannin was immobilized on the chitosan by Schiff-base condensation and phenol-formaldehyde reaction at the molar ratio of glutaraldehyde to tannin of 2:1. And the amount of chitosan amino groups was ten times that of tannin, with an initial pH of 4. The adsorption experiments showed that an appropriate increase in pH was more beneficial to enhance the adsorption capacity of immobilized Chinese gallotannin (ICGT). At a temperature exceeding 30 °C, the immobilized tannin became less sensitive to temperature. Adsorption kinetics studies showed that the adsorption of the three scattered metals by ICGT followed a quasi-second-order kinetic equation , with chemisorption as the mechanism. The adsorption isotherm was well fitted by the Langmuir model, indicating uniform adsorption sites on the surface of ICGT. The adsorption capacities of Ge (Ⅳ), Ga (Ⅲ), and In (Ⅲ) in solution by the adsorption model of monolayer were 61.39 mg/g, 63.82 mg/g, and 59.92 mg/g, respectively. Mechanical property and stability tests showed that ICGT had good resistance to harsh adsorption conditions of scattered metal ions .
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
危险品化学品经营许可证（带存储）