Journal of Materials Chemistry C
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2025
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IF 5.1
Kai Xu,Pei Liu,Yinxu Ni,Qingqing Gao,Jin Chen,Shuai Yin,Zixuan Ding,Guohui Tang,Changtian Zhu,Fenghua Liu
Electromagnetic (EM) pollution has emerged as a pressing concern, driving the demand for high-performance microwave absorbing materials. In this work, attapulgite (ATP) was employed as a natural, porous scaffold for the in situ integration of amorphous TiO2, Fe3O4, and polyaniline (PANI), constructing a multifunctional composite with tailored dielectric and magnetic properties. The TiO2 and PANI coatings not only induced strong interfacial and conduction polarization but also formed a continuous 3D conductive network, enabling efficient energy dissipation. Benefiting from the magneto-electric synergy among PANI, TiO2, and Fe3O4, the composite exhibited multiple loss mechanisms and excellent impedance matching. As a result, a minimum reflection loss of -56.24 dB was achieved at 11.63 GHz (2.9 mm thickness), with an ultra-wide effective absorption bandwidth of 8.1 GHz. More importantly, by integrating 3D printing with metamaterial-inspired design, the absorption range was successfully extended into the low-frequency region (4–6 GHz), while simultaneously enhancing structural integrity and corrosion resistance. This study offers a scalable strategy for designing lightweight, corrosion-resistant microwave absorbers by combining hierarchical conductive frameworks with multifunctional components, opening new avenues for next-generation EM shielding and stealth technologies.
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MINERALS ENGINEERING
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2025
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IF 5
Nan Wang,Jiayu Liu,Chunquan Li,Xinlin Wang,Qiongli Zhang,Fang Yuan,Zhiming Sun
Silicate-based composite materials have great potential as adsorbents in the field of mycotoxin removal. In this study, a porous graphitic carbon coated attapulgite (APT/C-ZnCl 2 ) composite material was successfully prepared using an in-situ thermal reduction method with glucose as the carbon source. This composite material exhibited excellent adsorption performance towards aflatoxin B1, zearalenone, and deoxynivalenol. Experimental results indicated that the adsorption rates of the composite material towards the three mycotoxins reached 93.52 %, 90.58 %, and 92.31 %, respectively, with saturated adsorption capacity of 20.17 mg/g, 82.67 mg/g, and 0.69 mg/g, respectively. The interaction between APT/C-ZnCl 2 material and aflatoxin B1 was mainly attributed to H-bonding interaction, while its interactions with zearalenone and deoxynivalenol were primarily governed by hydrophobic and π-π interactions. Overall, porous silicate-based APT/C-ZnCl 2 adsorbent has the characteristics of ultra-high adsorption capacity, low cost, and adsorption ability for different types of fungal toxins, meeting the requirements of efficient and economical removal of mycotoxins.
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ChemNanoMat
·
2025
·
IF 2.6
Liang Zhang,Yao Xiao,Siyuan Zhou,Xiazhang Li
Catalytic oxidation can efficiently remove volatile organic compounds by converting them into carbon dioxide and water, while minimizing secondary pollution. Currently, with the rapid development of the new energy industry, ternary lithium-ion power batteries are facing a peak in decommissioning. These spent batteries contain valuable metal elements, such as Mn, Co, and Ni. Recycling them as raw materials for catalyst preparation not only reduces costs but also achieves a "waste-to-waste" strategy. Herein, delithiation etching of spent LIBs is performed using a high-concentration sodium carbonate solution under ultrasonic assistance, yielding NiCoMnO x powder. This powder is subsequently loaded onto attapulgite (ATP) via a mechanochemical method. During ball milling, nitric acid is introduced to leach a small amount of Mg 2+ ions from the ATP. These Mg 2+ ions are then doped into the NiCoMnO x lattice during the reaction, inducing lattice expansion. This lattice distortion generated increased oxygen vacancies and defects, thereby enhancing lattice oxygen mobility and improving oxygen activation capacity. The NiCoMnO x /ATP catalyst prepared with a LIBs-to-ATP mass ratio of 0.6:1 exhibits outstanding catalytic performance for toluene oxidation: achieving 99% conversion at 270 °C and demonstrating excellent stability during prolonged cycling tests.
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DALTON TRANSACTIONS
·
2025
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IF 3.3
Nazish Shahab,Wei Han,Saeed Ahmed,Weiliang Tian,Chao Jiang,Huiyu Li,Yongjun Feng
2,4-Dichlorophenol (2,4-DCP), an emerging eco-contaminant with high bioaccumulation potential and persistence, was targeted for removal using chitosan-modified attapulgite (ATP@CCS) via a synergistic adsorption-Fenton process. ATP@CCS was synthesized through mild hydrothermal carbonization of chitosan, enabling dual functionality: (1) efficient adsorption/enrichment of 2,4-DCP (51% removal without H₂O₂), and (2) catalytic degradation via H₂O₂-assisted Fenton-like oxidation (97.8% removal under optimal conditions: 65 °C, pH 7, 40 mmol/L H₂O₂, 50 mg/L 2,4-DCP). In a scalable fixed-bed reactor employing polysulfone-ATP@CCS pellets, the system treated 15 L of 2,4-DCP solution (50 mg/L) with sustained efficiency (97.9% peak removal; 90% after 120 h), demonstrating continuous processing of 36 L contaminated water. The chitosan coating significantly suppressed iron leaching (Fe release: 1.84 ppm for raw ATP → 0.68 ppm for ATP@CCS). Kinetics adhered to pseudo-second-order models, while adsorption aligned with the Langmuir isotherm.
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PubMed
高影响因子
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
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2015
·Vol. 54
·期 11
·1508-1516
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IF 3.113
Haicun Yang,Hongting Pu,Fanghong Gong
The surface grafting of attapulgite (ATP) with polystyrene (PS) was established via a simultaneous reverse and normal initiation atom transfer radical polymerization (SR&NIATRP). 4-(chloromethyl)phenyltrimethoxysilane (CMPTMS) chemical bounded on the surface of ATP (ATP-Cl, Cl-I) was prepared via one-step self-assembly. SR&NI ATRP of styrene was conducted using CuCl 2 complex tris(2-(dimethylamino)ethyl)amine (Me 6 -TREN) as the catalytic system, initiated by 2,2-azobis(isobutyronitrile) (AIBN) and ATP-Cl. FT-IR, XRD, XPS, TGA and TEM data were consistent with the grafting of benzyl chloride groups and PS chains on ATP surface. The controllability of polymerization was investigated by the kinetics behavior under different molar ratio of AIBN and CuCl 2 . The obtained polymer possessed a uniform distribution of molecular weights with a lower polydispersity index of 1.2∼1.4. The relationship between polymerization on the surface of ATP and in solution was discussed in detail based on TGA data of hybrid particles and GPC trace of free polymer in solution. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016 , 54 , 1508–1516
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ENVIRONMENTAL RESEARCH
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2025
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IF 7.7
Dong Liu,Zelu Zhou,Zhitao Han,Mengjing Zhang,Aicheng Song,Xi Wu,Xiao Yang,Dong Ma
In recent years, significant attention has been drawn to the advancement of high-performance solid acid catalysts, which enhance the CO 2 desorption efficiency and concurrently lower energy requirements. Although solid acid catalysts show promise in reducing regeneration energy for amine-based CO 2 capture, achieving an optimal balance between activity, cost, and stability remains a major challenge. Herein a series of solid acid catalysts were prepared by modifying attapulgite (ATP) with various CuO x loading, and the effect of Cu modification on CO 2 desorption performance was compared systematically. The results showed that CO 2 desorption performance of the as-prepared catalysts was in an order of 2/1-CuO x /ATP >1/1-CuO x /ATP >3/1-CuO x /ATP > CuO > ATP. The CO 2 desorption capacity and rate were increased by 194 % and 205 %, respectively, the relative heat duty could be reduced by about 64.5 % by using 2/1-CuO x /ATP to regenerate the rich MEA solution. ATR-FTIR technique was employed to confirm the catalytic effect and a possible catalytic CO 2 desorption mechanism was suggested. Additionally, the catalyst maintained 81 % of its initial CO 2 desorption capacity after seven consecutive absorption-desorption cycles, demonstrating excellent recoverability. This study provides a practical strategy for utilizing efficient, affordable and environmentally benign solid acid catalysts for CO 2 desorption, thereby advancing energy-efficient CO 2 capture technology.
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JOURNAL OF CATALYSIS
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2026
·
IF 6.5
Yishuang Wang,Lei Liu,Mingqiang Chen,Defang Liang,Chang Li,Jun Wang,Haosheng Xin
Lignin valorization is crucial for obtained sustainable fuels and chemicals, however its complex structure challenges efficient conversion. Herein, we designed a Ru-modified Co/attapulgite (CoRu x /ATP) catalysts for achieving the catalytic depolymerization of lignin (CDL) under ethanol coupled with H 2 medium to liquid fuel and guaiacols. CoRu 1 /ATP exhibited exceptional catalytic efficiency under optimal conditions, where the yields of liquid product and guaiacols reached 82.82 % and 584.67 mg/g, respectively. Experiments with model compounds demonstrated that the addition of Ru could effectively reduce the activation energy of the β-O-4 bond cleavage, which decreased from 78.6 kJ·mol −1 to 73.5 kJ·mol −1 . Characterization results indicated that the Ru additive yielded Co–Ru interfaces and its hydrogen spillover effect promoted the reduction of Co 3 O 4 to CoO and metallic Co (Co 0 ) to produce more oxygen vacancies (V O ). Additionally, the research on reaction mechanisms revealed V O and CoO phases in CoRu 1 /ATP enhanced the breakage of C–O bonds of lignin and the adjacent metallic Co and Ru sites and Co–Ru interfaces improved the activation of ethanol and molecular hydrogen into active hydrogen (H*) species to stabilize reactive intermediates and enhance hydrogenation reaction. The findings provide a potential method for directional lignin conversion.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
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IF 5.4
Ting Zhang,Lu Zhang,Jiaojiao Qiao,Qingsong Li,Ding Wei,Jianpeng Zhang,Yi Wang
Attapulgite-waste newspaper cellulose aerogel (ATP-WNCA) was fabricated. • ATP-WNCA got 99.9% adsorption removal ratio of MB. • ATP-WNCA got an MB adsorption capacity of 59.61 mg/g (6.5 times that of pure WNCA). • Due to its unique 3D porous structure, ATP-WNCA has multiple adsorption mechanisms. In this study, waste newspaper cellulose (WNC) was extracted from waste newspapers and compounded with natural attapulgite (ATP) to develop a novel three-dimensional porous composite material attapulgite-waste newspaper cellulose aerogel (ATP-WNCA). Cellulose was obtained from waste newspapers through an acid-base combined treatment, and ATP-WNCA was successfully prepared using a sol-gel method with a freeze-drying process. The prepared aerogel material was characterized by XRD, FT-IR, and XPS techniques, and the results indicated that in ATP-WNCA, the rod like fiber of attapulgite is used as the skeleton, and cross-linked with cellulose to form aerogel. Its thermal stability was significantly enhanced, and its specific surface area was dramatically increased from 9.56 m²/g of WNC to 127.91 m²/g of ATP-WNCA. The adsorption performance experiments of ATP-WNCA for methylene blue (MB) demonstrated that under the optimal conditions of adsorbent dosage of 900 mg/L, temperature of 30°C, and pH of 11, ATP-WNCA got 99.9% adsorption removal ratio of MB, with an adsorption capacity of 59.61 mg/g (6.5 times that of pure WNCA). According to the experimental and adsorption isotherm fitting and kinetic fitting results, the adsorption mechanism mainly includes electrostatic adsorption, ion exchange, pore filling, hydrogen bonding, and surface complexation. Different from prior waste cellulose adsorbents suffering from low surface area, poor thermal resistance, this work innovatively employs natural ATP as a reinforcing skeleton to overcome the inherent limitations of pure waste newspaper cellulose aerogels; the ATP-WNCA exhibits competitive MB capture performance against some reported composite adsorbents and establishes a facile, cost-effective and sustainable strategy for converting waste paper into high-efficiency organic dye remediation materials, substantially advancing the development of biomass-clay composite adsorbents for practical wastewater treatment. Download: Download high-res image (366KB) Download: Download full-size image
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JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Pengfei Zhang,Fangfang Liu,Jinyuan Liu,Mengxing Zhang,Jinan Niu,Xiuyun Chuan
Polyolefin separators are currently an indispensable component of lithium-ion batteries (LIBs). However, their extreme resistance to degradation-which may take centuries-poses a serious threat of “white pollution” in the upcoming large-scale wave of battery disposal. Hence, the development of biodegradable or environmentally friendly alternative separators represents the most fundamental and promising solution. In this study, a composite separator based on polyvinyl alcohol (PVA) and attapulgite (ATP), was fabricated via electrospinning. The incorporation of ATP-which possesses abundant nanochannels and excellent thermal stability-enhances the physicochemical properties of the ATP/PVA composite separator. Compared with a commercial PP separator, the LiFePO 4 /Li half-cell assembled with the ATP/PVA-2 separator exhibits a higher discharge specific capacity of 144.7 mAh·g −1 , significantly exceeding the 131.5 mAh·g −1 of the cell with a PP separator. Furthermore, the cell equipped with the ATP/PVA-2 separator demonstrates exceptional cycling stability, showing almost no capacity decay after 200 charge-discharge cycles. Additionally, the ATP/PVA composite separator exhibits outstanding degradability, completely dissolved in deionized water within 2 min and achieved complete biodegradation in natural soil within 4 months. The as-prepared ATP/PVA composite separator not only shows promising physicochemical properties but also degrades readily, making it a strong candidate as an eco-friendly alternative to conventional polyolefin separators.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124166
·
IF 7.5
Jie Tang,Hangxuan Li,Zhijiang Sun,Li Chen,Ziqing Tang,Fen Ran
Attapulgite is an ideal modifier for thin-film nanocomposite nanofiltration membranes due to its superior dispersibility and surface activity, endowing it with low-cost application potential in water treatment. However, a systematic comparative study on the effect of attapulgite sources on the separation performance of thin-film nanocomposite membranes remains a gap to be filled. This study systematically compared the application performance of attapulgite from three representative origins (Huangnishan, Jiangsu; Linze, Gansu; Mingguang, Anhui, China) in fabricating thin-film nanocomposite nanofiltration membranes via interfacial polymerization. As compared to the pristine PA membrane, the nanofiltration membrane incorporated with 1.0 g/L Mingguang attapulgite achieved the optimal performance, with a 94% water permeance enhancement while retaining 98.0% Congo red rejection and 92.1% Na 2 SO 4 rejection, as well as a flux recovery ratio of over 90%. The multifunctional role of well-dispersed Mingguang attapulgite (enhanced hydrophilicity, electrostatic repulsion, robust hydration layer) was responsible for the balanced permeance, selectivity and anti-fouling performance. In contrast, Linze attapulgite, with lower crystallinity coupled with higher impurity content, resulted in the blockage of membrane channels and a corresponding decrease in permeance. Huangnishan attapulgite had a relatively low absolute zeta potential and poor dispersibility. This work demonstrates that attapulgite origin directly affects nanofiltration membrane performance by regulating material properties, providing a theoretical basis for selecting cost-effective attapulgite sources for high-efficiency nanofiltration membranes fabrication.
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Materials
·
2026
·Vol. 19
·期 3
·554
·
IF 3.2
Naveed Karim,Tin Kyawoo,Saeed Ahmed,Weiliang Tian,Huiyu Li,Yongjun Feng
A carbon-modified attapulgite composite (C-AATP@CTAB) was synthesized via the hydrothermal method using citric acid as the carbon source and cetyltrimethylammonium bromide (CTAB) as a surface modifier for efficient rhodamine B (Rh-B) removal. Carbon modification elevated the composite’s specific surface area (212 m2/g) and negative surface charge (−38.21 mV), significantly enhancing dye adsorption capacity to 666.66 mg/g—nearly double that of unmodified ATP variants (360.4–386.8 mg/g). Kinetic studies confirmed pseudo-second-order adsorption kinetics, attributed to hydrogen bonding and van der Waals interactions between Rh-B and the composite. Under photo-Fenton conditions, C-AATP@CTAB achieved 99.8% Rh-B degradation within 20 min, demonstrating superior catalytic performance in heterogeneous Fenton/photo-Fenton systems. This work establishes a low-cost, high-efficiency adsorbent-catalyst hybrid derived from low-grade attapulgite, offering promising avenues for sustainable wastewater treatment.
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CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Siwen Wang,Zihang Xu,Tao Xu
The attapulgite (ATP) is one of important raw materials of ceramics and often used as a loading carrier. To control the release rate of composite flame retardant (CFR) when exposed to a fire, and to meet the multi-stage flame retarding requirements, the vacuum negative pressure method was adopted to load four kinds of monomer flame retardants on porous ATP as a carrier after activating pretreatment, respectively. Then CFR nanoparticles with controlled-release effects were prepared by the in-situ polymerization reaction on the surface of monomer flame retardants. After that, zinc hydroxyl stannate , styrene, melamine formaldehyde resin and silicon dioxide with high thermal stability and excellent flame retarding properties were selected as the coating layer of four kinds of monomer flame retardants on ATP carrier. Test results of environmental scanning electron microscope and energy dispersive spectrometer show the satisfactory loading and coating results of CFR nanoparticles. Test results of X-ray photoelectron spectroscopy further confirm the excellent loading conditions and coating film formation on ATP carrier. The thermogravimetry-differential thermal scanning calorimetry tests indicate that the flame retarding duration of both loaded and coated CFR nanoparticles on ATP carrier is prolonged and has a satisfactory controlled-release effect.
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危险品化学品经营许可证（带存储）