INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Qianqian Tang,Hao Wu,Mingsong Zhou,Dongjie Yang
To remove Cr(VI) in water, a novel lignin-based anionic adsorption resin epichlorohydrin cross-linking lignin grafted by diethylenetriamine (E-DAL) was prepared by the direct cross-linking and curing of alkali lignin grafted by diethylenetriamine in aqueous solutions. Under the determined optimum synthesis conditions, E-DAL with higher nitrogen (7.46%) and lignin (32.78%) contents was obtained. Structural and physicochemical measurement results showed E-DAL was a macroporous resin, having a regular connected pore structure with porosity of 67.48% and pore size of 615.6 nm, also strong hydrophilicity, excellent acid-alkaline resistance and thermal stability. Adsorption experiment results indicated the adsorption isotherm of E-DAL to Cr(VI) was well-described by Langmuir model. E-DAL showed a higher adsorption capacity to Cr(VI), and the fitted maximum adsorption capacity reached up to 775.2 mg/g. Pseudo-second-order model could fit this adsorption process well, suggesting its chemisorption characteristics. The calculated thermodynamic parameters indicated a spontaneous and endothermic adsorption of E-DAL to Cr(VI). Dynamic column adsorption results showed E-DAL could completely remove Cr(VI) in wastewater. This whole preparation process only used a very small amount of cheaper amination agent and was relatively low-cost. This work provided efficient technical supports for the structural design of high-performance lignin-based anionic adsorption materials in water treatment field.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 37
·e55934
·
IF 2.7
Feng Zhou,Yu Dai,Wei Qin,Zhenyong Li,Yu Song,Fuli Bian,Quanwei Song,Xianyan Ren
Existing adsorption materials with drawbacks in the weak organic solvents/oil retention ability, slow adsorption speed and low adsorption capacity for alkanes still hardly meet demands of the application field, especially in emergencies. The copolymerization of the long-chain alkenes, 1-octene, with isoprene was designed in this paper to synthesize an adsorption resin (PIOT), instead of acrylate monomers reported in the literature. And trimethylolpropane triacrylate was designed as a crosslinking agent. Results show that the PIOT grows in the form of powders, which are the loose accumulation of nanoflakes with a diameter of about 47.89 ± 11.06 nm. In view of the chain structure and morphology of the PIOT, it can quickly reach the maximum adsorption within 10 s along with a high adsorption capacity for various solvents and kerosene. Even for hexane, the adsorption capacity of the PIOT increases by 345.2% compared with the reported adsorption resin. The oil retention rate of PIOT can be maintained at 86 ± 6% after centrifugation at 1000–3000 rpm for 5–25 min. Compared with commercial activated carbon, the PIOT has outstanding advantages in recycling property and oil retention rate and compared with the reported acrylate adsorption resin, the PIOT has made a great breakthrough in adsorption capacity for alkanes.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Analytical Methods
·
2022
·Vol. 14
·期 38
·3727-3738
·
IF 3.532
Chao Huang,Hongwei Wang,Yunjia Xu,Shujuan Ma,Bolin Gong,Junjie Ou
Heavy metal pollution has spread around the world with the development of industry, posing a major threat to human health. It is urgent to design and fabricate bifunctional materials for detection and adsorption of heavy metal ions. Herein, poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) microspheres, a kind of common macroporous adsorption resin (MAR), were employed as the matrix, and carbon dots (CDs) with excellent optical properties were grafted onto the surface of MAR by surface-initiated atom transfer radical polymerization (SI-ATRP) and photo-initiated “thiol-yne” click chemistry. The synthesized MAR@poly(PA)@CD could produce fluorescence quenching with Fe3+. A simple fluorescence spectrometric method for detection of Fe3+ was established. The fluorescence intensity of MAR@poly(PA)@CD decreased linearly with the concentration of Fe3+ in the range of 0–70 nmol L−1, with a limit of detection (LOD) of 6.6 nmol L−1, which had the potential for trace detection. In addition, after SI-ATRP modification, many adsorption sites were generated on the surface of MAR, and the adsorption capacity for Fe3+ was 23.8 mg g−1. Isothermal and kinetic adsorption experiments were more consistent with the Langmuir model (r = 0.9992) and pseudo-second-order model (r = 0.9902), indicating that the adsorption was monolayer adsorption and chemical adsorption, respectively. MAR@poly(PA)@CD with dual functions of detecting and adsorbing Fe3+ was successfully prepared, showing great application prospects in the environmental field.
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
·
2025
·Vol. 78
·期 4
·1-10
·
IF 1.6
Pan Qi,Zhu Zhen,Lin Xiaocheng,Guo Bao,Jiang Kaixi
It is a waste of gallium resource to discard the high aluminum-containing gallium electrolyte. The Ga/Al separation is difficult by only using lime precipitation because of high gallium loss rate. The present study employs an adsorption resin LSC-600P to recover gallium in the simulated gallium electrolyte and then uses lime to remove aluminum, leaving only alkali solution recycled. The results showed that the aluminum removal rate in the gallium electrolyte was 93.12% under the conditions of reaction temperature of 85 °C, addition of lime 2 times to the theoretical molar ratio of calcium to aluminum, reaction time of 3 h and stirring speed of 600 r/min. In the experiments of gallium adsorption, after six adsorption–desorption cycles, the adsorption rate of gallium by LSC-600P resin still reached 98.6%, and the adsorption rate of aluminum was lower than 4.5%. In the desorption process, the desorption rate of gallium was more than 98%, and the aluminum content in the stripping solution after desorption was almost negligible. The resin exhibits high adsorption affinity for gallium while demonstrating minimal adsorption for aluminum.
研究领域:
冶金学
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环境工程
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DOI
高影响因子
Analytical Methods
·
2021
·Vol. 13
·期 38
·4515-4527
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IF 2.896
Zheng Gao,Ruizhi Tang,Shujuan Ma,Shicong Jia,Shuai Zhang,Bolin Gong,Junjie Ou
Although macroporous adsorbent resins (MARs) have been commercialized and widely applied in industrial and life fields, it is still of necessity to develop simple approaches to functionalize MARs. One of the most widely used methods to realize excellent fouling resistance performance is surface modification of hydrophilic polymers on substrates to fabricate an anti-biofouling coating. Herein, three kinds of hydrophilic poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) MAR were designed and facilely prepared by coating a layer of porous organic polymers (POPs) via either an epoxy–amine ring-opening polymerization or amine–aldehyde condensation reaction using isophthalaldehyde (IPA), 1,4,7,10-tetraazacyclododecane (cyclen), melamine and 1,3,5-triglycidyl isocyanurate (TGIC) as precursors. By taking advantage of their merits, such as large surface area, excellent hydrophilicity and unbiased affinity toward all types of glycopeptide, three functionalized hydrophilic MARs were successfully applied to capture glycopeptides from complex samples as hydrophilic interaction liquid chromatography (HILIC) sorbents. A total of 694 N-glycopeptides and 372 N-glycosylation sites were identified from 2 μL of human serum digest with poly(TC)@MAR, which were not only more than those of poly(MT)@MAR (286 N-glycosylation sites and 547 N-glycopeptides) and poly(IM)@MAR (669 N-glycopeptides and 355 N-glycosylation sites), but also more than those of other reported HILIC materials. This work provided a new and simple way to synthesize enrichment materials for liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) analysis of glycoproteomes.
研究领域:
生物化学
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分析化学
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蛋白质组学
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DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
·
2020
·
IF 5.977
Ruizhi Tang,Yang Yu,Jing Dong,Yating Yao,Shujuan Ma,Junjie Ou,Mingliang Ye
In bottom-up strategy, specific enrichment of glycopeptides and phosphopeptides from complicated biological samples is a prerequisite for efficient identifying glycosylation and phosphorylation by mass spectrometry . Although there were a plethora of materials used as either hydrophilic interaction liquid chromatography (HILIC) or immobilized metal affinity chromatography (IMAC) adsorbents, even several bifunctional materials for simultaneous enrichment of glycopeptides and phosphopeptides, most of them are not easily commercialized as many other well-performing adsorbents due to the complicated preparation process. In our case, a one-step modification strategy was developed to prepare bifunctional adsorbents for HILIC and IMAC, employing O -phospho- l -serine as the modifier and poly(GMA- co -EDMA) microspheres, a kind of macroporous adsorption resin (MAR) with epoxy groups , as the matrix. The MARs were directly modified with O -phospho- l -serine under facile condition for HILIC strategy and further chelated with Ti 4+ for IMAC strategy. A total of 522 unique N -glycopeptides and 442 unique N -glycosylation sites mapped to 275 N -glycoproteins was identified from HeLa cell proteins, showing excellent enrichment efficiency in HILIC. Additionally, 3141 unique phosphopeptides were unambiguously identified from 200 μg of digest of HeLa cell proteins, demonstrating great enrichment efficiency in IMAC. Moreover, these materials have been successfully applied in the analysis of multiple biological samples including human serum and milk, demonstrating their feasibility for real sample applications and potential business value.
研究领域:
蛋白质组学
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生物化学
·
分析化学
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Zhuang Wang,Dongping Su,Ting Luo,Qiao Yu,Yiting Wang,Xingyue Liu,Xuanhao Huang,Songdong Ding
The separation of thorium from uranium and rare earths is of great significance for a thorium molten salt reactor nuclear energy system. Herein, a novel Aliquat 336@SiO2–P extraction resin, prepared by the in situ encapsulation of an amine-based ionic liquid (Aliquat 336) into a porous silica–polymer matrix at the same time as the polymerization, was developed for the highly selective separation of Th(IV) over U(VI) and rare earth ions. Batch adsorption studies showed that the prepared Aliquat 336@SiO2–P extraction resin has excellent selectivity, strong adsorption affinity, and high adsorption capacity for Th(IV). The adsorption process of Th(IV) follows pseudo-second-order kinetics and the Langmuir model, and the adsorption of Th(IV) is a monolayer-type, chemical, exothermic, and spontaneous process with increased entropy, achieving a maximum Th(IV) adsorption capacity (qmax) of 52.4 mg/g. Thorium is adsorbed as a complex anion in an HNO3 solution, and its adsorption conforms to the anion exchange mechanism. Furthermore, column experiments indicated that Th(IV) can be selectively separated from simulated monazite HNO3 leach liquor with a recovery rate as high as 97.7%, and the prepared extraction resin has good reusability. Compared to the conventional impregnation method, the Aliquat 336 extractant encapsulated in a porous silica–polymer matrix has significantly lower loss during the adsorption process. Overall, this new extraction resin demonstrates great application potential for the highly efficient separation and recovery of Th(IV) from monazite HNO3 leach liquor.
研究领域:
核能科学
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材料科学
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环境工程
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DOI
高影响因子
Food Chemistry-X
·
2025
·
IF 8.2
Sobia Naseem,Muhammad Rizwan,Wahidah H. Al-Qahtani,Ayesha Sadiqa,Awais Ahmad
Recycling food waste to extract valuable bioactive compounds (BAC) offers a groundbreaking solution to mitigate environmental challenges. The isolation and purification of BAC from food waste are getting more attention to maintain environmental sustainability. The therapeutic potential of these compounds highlights the need for innovative approaches to extracting and purifying them from by-products. In this context, the chlorogenic (CG) acid is extracted from watermelon (Citrullus lanatus) rind (WMR) using ultrasound-assisted extraction (USAE) technique and purified using the macroporous adsorption resin (MPAR) method. The extraction and purification were carried out with water, 70 % v /v ethanol/water (70 % Et), and 90 % v/v ethanol/water (90 %-Et) solvent to analyze the impact of solvent on extraction efficiency, purity, and recovery. The extracted CG acid was qualitatively analyzed via UV spectrometry and HPLC and underwent FESEM analysis while purified CG acid was characterized via FTIR and thermal analysis. The implementation of the MPAR method notably increased the yield to 4.6 mg/g of raw material using solvents comprising 90 % ethanol than water and 70 % ethanol. The recovery of CG acid significantly escalated to 88 %, enhancing the purity percentage from an initial range of 70–94 %.
研究领域:
食品科学
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环境科学
·
药学
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DOI
PubMed
高影响因子
Nanoscale
·
2015
·Vol. 7
·期 44
·18619-18627
·
IF 7.394
Wei Ha,Xin-yue Song,Juan Chen,Yan-ping Shi
In this paper, we demonstrate a novel carbon nanotube (CNT) reinforced macroporous adsorption resin (MAR) for the first time. The CNTs were dispersed in water via sonication, and then in situ physically entrapped in the pores of MAR by capillary forces and sonication. The resulting CNT reinforced MAR (CNT–MAR) was proved by transmission electron microscopy (TEM) and confocal laser scanning microscopy (CLSM), and subsequently applied to extract a mixture of 8 types, 14 natural products. For comparison, the extraction efficiency of original MAR without CNTs was also evaluated. After extraction, the supernatants were detected via high-performance liquid chromatography (HPLC). The results indicated that the introduction of carbon nanotubes (CNTs) into the pores of MAR can significantly improve the adsorptive selectivity of MAR for natural products. The original MAR without CNTs has almost the same adsorption capacity for selectively extracting 3 types of natural products (phenols, alkaloids and anthraquinones). However, the CNT–MAR only could selectively extract anthraquinones and the adsorption capacity for three anthraquinone natural products is 1.46–1.83 times higher than that of unmodified MAR. In order to achieve the highest extraction efficiency of CNT–MAR for anthraquinone natural products, the main extraction parameters such as the extraction time and the pH value were also optimized. The CNT–MAR demonstrated an excellent ability to extract anthraquinone natural products with high selectivity and adsorption capacity. Due to its low cost, easy preparation and use, and operational characteristics, it shows great potential for selective extraction of natural products.
研究领域:
材料科学
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生物化学
·
制药工程
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DOI
PubMed
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2022
·
IF 8.91
Guangyu Duan,Zhanfang Cao,Hong Zhong,Xin Ma,Shuai Wang
Heavy metal wastewater pollution has become an ecological challenge worldwide. This study reports the development of a novel poly (6-acryloylamino-N-hydroxyhexanamide) (PAHHA) resin for effective adsorption of heavy metal ions , including Cu 2+ , Pb 2+ and Ni 2+ . The chelating resin was synthesized by the grafting reaction between 6-amino-N-hydroxyhexanamide and polyacrylic resin , thus containing the hydroxamate and acylamino groups. The batch adsorption experiments revealed that the PAHHA resin exhibited an excellent adsorption performance for Cu 2+ , Pb 2+ and Ni 2+ . The maximum adsorption capacities of Cu 2+ , Pb 2+ and Ni 2+ were determined to be 238.59, 232.48 and 115.77 mg·g −1 , respectively. Based on the adsorption kinetics , the pseudo-second-order kinetic model was noted to fit well for all metal ions. The metal ion concentration as a function of the equilibrium adsorption capacity fitted well with the Langmuir isotherm , thus indicating the single layer adsorption process . The adsorption mechanism was investigated by using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), density functional theory (DFT) calculations, X-ray photoelectron spectroscopy (XPS) and adsorption isotherms . It was revealed that the PAHHA resin possessed multiple active sites, including –CONHOH, –CONH– and –COOH, which could strongly adsorb the metal ions. Specifically, the –CONHOH group displayed a high affinity by forming a stable five-membered ring with heavy metal ions. Overall, the developed resin exhibits advantages such as simple synthesis, inexpensive raw material and good recyclability , along with high adsorption ability, thus providing a new approach for efficiently treating wastewater contaminated with heavy metal ions.
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
Scientific Reports
·
2024
·Vol. 14
·期 1
·1-14
·
IF 3.8
Liu Chao,Jia Xinlei,Wang Yonghui,Gu Yuxin,Liu Yanjuan,Wei Lixin,Xu Lanjuan
This paper aims to address the issue of environmental pollution resulting from marine oil spills by evaluating the oil adsorption performance of commonly used fence materials. Conventional oil adsorption materials exhibit limited rates and capacities for oil adsorption. Existing methods have proven insufficient in meeting the requirements for efficient and rapid oil–water separation. A new oil-absorbing barrier was developed by utilizing high oil adsorption resin as the primary material and hydroxypropyl methyl cellulose (HPMC) as the binder, leveraging the exceptional oil adsorption and hydrophobic properties of P(BMA-SMA-St)/MIL-101(Fe) resin. The oil-absorbing fence was characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The oil adsorption rates of carbon tetrachloride, toluene, diesel and gasoline by the oil adsorption fence with 25 g/L resin content were 101.26 g/m 2 , 68.12 g/m 2 , 35.19 g/m 2 , and 46.69 g/m 2 , respectively. After 120 h of UV irradiation, the coating’s oil absorption capacity remained nearly unchanged, and it demonstrated outstanding mechanical, chemical, and wear resistance. As a result, the oil adsorption fence possesses the capability to rapidly absorb oil from the water’s surface during the process of containing oil pollution, leading to positive social and economic impacts.
研究领域:
环境科学
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材料科学
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DOI
PubMed
高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2025
·Vol. 48
·期 1
·e70085
·
IF 2.8
Yubai Qi,Xueqin Jin,Yuepeng Yang,Hong Du,Defu Li,Xinying Li
Monomer compounds from natural products are the major source of active pharmaceutical molecules, which provide great opportunities for discovering of new drugs. However, natural products contain a large number of rather complex compounds. It is difficult to obtain high-purity monomer compounds from complex natural products. Herein, we developed molecularly imprinted macroporous adsorption resins (MIRs-PDA) for the selective adsorption of target monomer compounds from natural products. The response surface methodology was employed to optimize the fabrication parameters. The separation performance of MIRs-PDA for the representative monomer compound rutin was thoroughly studied. We found that MIRs-PDA presented large adsorption capacity (107.82 mg/g), high selectivity (selectivity coefficient was 2.90), good repeatability, and reusability. MIRs-PDA can reach 78.5% equilibrium adsorption capacity in 20 min, showing quick binding kinetic behavior. Furthermore, MIRs-PDA showed good selective and specific adsorption performance for rutin from a representative real sample of Fagopyrum tataricum extract solution. The study of the adsorption mechanism showed that the adsorption of rutin on MIRs-PDA was spontaneous and thermodynamically feasible. The kinetic parameters adapted well to the pseudo-second-order kinetic model, and there existed equivalent binding sites in MIRs-PDA. The MIRs-PDA show promising application prospects for the separation of monomer compounds in natural products.
研究领域:
药物化学
·
天然产物化学
·
分离科学与技术
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）