INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xiaoguang Zhang,Jiexiang Liu,Ruili Bai
OA-AP, DTAB-AP, DDBAB-AP complexes were synthesized by introducing surfactants of OA, DTAB and DDBAB into attapulgite (AP). The complexes were systematically characterized. The appearance of new diffraction peaks at low angle indicated a new lamellar structure of OA (DTAB, DDBAB)-AP complexes. Then, the pesticide avermectin (AV) composites of AV/DTAB-OA-AP, AV/DDBAB-OA-AP, sodium alginate (SA) @AV/DTAB-OA-AP and SA@AV/DDBAB-OA-AP were prepared and investigated detailedly. The basal spacings of AV/DTAB-OA-AP and AV/DDBAB-OA-AP were bigger than those of OA-AP and DTAB(DDBAB)-AP. The existences of AV, surfactants and SA molecules of the composites were further confirmed. Furthermore the effect of SA on AV release behaviors of SA@AV/DTAB (DDBAB)-OA-AP microspheres was investigated and compared. Compared to AV/DTAB (DDBAB)-OA-AP, the released rate of the microspheres decreased remarkably. The AV release behaviors of AV/DTAB (DDBAB)-OA-AP could be fitted with pseudo second-order model, while the first-order model was better to describe those of the microspheres. Finally, the bioassay of the microspheres were studied and analyzed. The microspheres had a longer duration and control effect on Mythimna separata . This study could be helpful to provide a pesticide delivery system to improve the utilization efficiency of pesticides.
研究领域:
农药科学
·
材料科学
·
农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Wenting Gao,Bin Mu,Fangfang Yang,Yalong Li,Xiaomei Wang,Aiqin Wang
In order to fulfill people's requirements for food quality and safety, it is a promising strategy to develop intelligent biodegradable food packaging materials. Herein, honeysuckle extracts/attapulgite/chitosan composite films containing natural carbon dots were fabricated for intelligent food packaging. Different characterization techniques were employed to study the obtained composite films, while the physicochemical properties, optical properties, antibacterial and antioxidant activities of composite films were determined. The obtained composite films presented good mechanical, antibacterial and antioxidant properties, and the antibacterial ratios of composite films against Escherichia coli and Staphylococcus aureus were 99.27 ± 0.18 % and 98.85 ± 0.65 %, respectively. When the added amount of honeysuckle extracts/attapulgite nanocomposites was 4.76 %, the tensile strength and elongation at break of composite films reached 24.9 ± 2.35 MPa and 64.8 ± 2.11 %, respectively, which were obviously higher than that of pure chitosan film. Furthermore, the composite films exhibited excellent UV shielding and blue fluorescence properties, as well as pH-sensitivity due to the presence of caffeoquinic acid-based natural carbon dots derived from honeysuckle extract. Therefore, the composite films indicated a potential application for intelligent food packaging.
研究领域:
食品科学
·
材料科学
·
生物工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2024
·
IF 6
Wenting Gao,Bin Mu,Fangfang Yang,Yalong Li,Aiqin Wang
Multifunctional biodegradable packaging films with antibacterial and antioxidant properties are highly desirable for food preservation. In this study, multifunctional bioactive chitosan-based composite films were fabricated for loquat preservation after incorporation of licorice flavonoids/ZnO/attapulgite (LF/ZnO/APT) nanocomposites, which were prepared by anchoring ZnO nanoparticles on the surface of attapulgite followed by mechanochemical-assisted loading of licorice flavonoids. The structure and physicochemical properties of composite films were characterized using Fourier transform infrared spectroscopy, transmission electron microscopy, X-ray powder diffraction, etc., while the effects of the added amount of LF/ZnO/APT nanocomposites on the mechanical, antibacterial and antioxidant performances of composite films were investigated. The results indicated that introduction of LF/ZnO/APT nanocomposites obviously enhanced the mechanical properties and antibacterial ratios against Escherichia coli (97.04 ± 2.08%) and Staphylococcus aureus (98.68 ± 1.10%) of composite films. Moreover, the composite films also exhibited excellent scavenging capacities against 2,2-diphenyl-1-picrylhydrazyl and hydroxyl radicals. Therefore, the as-prepared composite films significantly extended the shelf life of loquats, and it is feasible to be served as promising active food packaging materials based on component synergistic effect of composite films.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2025
·
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.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DALTON TRANSACTIONS
·
2025
·
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.
研究领域:
环境科学
·
水处理技术
·
高级氧化工艺
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
·
2015
·Vol. 54
·期 11
·1508-1516
·
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
研究领域:
材料科学
·
高分子化学
✓ 已验证
DOI
高影响因子
MINERALS ENGINEERING
·
2025
·
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.
研究领域:
环境科学
·
材料科学
·
毒理学
·
吸附技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
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.
研究领域:
材料科学
·
电磁工程
·
纳米技术
·
复合材料
·
腐蚀科学
·
微波技术
✓ 已验证
产品关联
DOI
高影响因子
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.
研究领域:
环境催化
·
资源回收
·
材料化学
·
大气污染控制
·
可持续能源技术
✓ 已验证
产品关联
DOI
高影响因子
Applied Materials Today
·
2026
·
IF 7
Weixiao Gong,Zhendong Liu,Zheng Wang,Yannan Jia,Guanghui Lu,Lu Li,Xiaoqin Li,Junchi Zhang,Haichen Cui,Yuanxiang Shan,Wanting Feng,Hongqin Xue
FeMn-HATP was synthesized as an efficient Sb(III) adsorbent. • Synergistic oxidative adsorption by FeMn-HATP enhances Sb(III) removal efficiency. • Kinetic, isotherm, and thermodynamic studies investigated FeMn-HATP adsorption. • An Sb(III) degradation mechanistic pathway is proposed. • FeMn-HATP demonstrated excellent regeneration performance in fixed-bed column tests. An affordable, environmentally friendly, simple adsorbent for Sb(III) removal from aqueous solutions was prepared using attapulgite (ATP) as the matrix, and FeSO 4 and KMnO 4 as metal precursors, through an in situ precipitation approach. The morphology, pore structure, and surface chemical properties of the material were analyzed using various characterization techniques. The results indicate that the iron-manganese bimetallic-modified acid-activated ATP (FeMn-HATP) surface is loaded with relatively uniformly distributed iron and manganese components, and its specific surface area and pore structure differ significantly from the original ATP. These changes promote pollutant molecule diffusion and contact. In batch adsorption experiments, FeMn-HATP achieved good Sb(III) removal performance and remained relatively stable within a pH range of 4 −10. The material maintained a relatively stable adsorption capacity even in the presence of high concentrations of other anions. Adsorption of Sb(III) by the modified ATP better conforms to both Elovich kinetic and Langmuir isotherm models, with a theoretical maximum adsorption capacity of 102.79 mg/g at 318.15 K. Fixed-bed cycling experiments demonstrated that FeMn-HATP retained significant adsorption capacity after five NaOH regenerations, with a dynamic adsorption capacity of 14.68 mg/g and a regeneration efficiency of 68.16%. Overall, FeMn-HATP exhibits good potential for Sb(III) removal with a degree of reusability, indicating promise for the treatment of antimony-containing wastewater. Download: Download high-res image (262KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2018
·
IF 4.005
Lei Dong,Li Lin,Qingyun Li,Zhuo Huang,Xianqiang Tang,Min Wu,Chao Li,Xiaohuan Cao,Miklas Scholz
Attapulgite (or palygorskite) is a magnesium aluminium phyllosilicate . Modified attapulgite-supported nanoscale zero-valent iron (NZVI) was created by a liquid-phase reduction method and then applied for nitrate-nitrogen (NO 3 -N) removal (transformation) in simulated groundwater. Nanoscale zero-valent iron was sufficiently dispersed on the surface of thermally modified attapulgite. The NO 3 -N removal efficiency reached up to approximately 83.8% with an initial pH values of 7.0. The corresponding thermally modified attapulgite-supported nanoscale zero-valent iron (TATP-NZVI) and NO 3 -N concentrations were 2.0 g/L and 20 mg/L respectively. Moreover, 72.1% of the water column NO 3 -N was converted to ammonium-nitrogen (NH 4 -N) within 6 h. The influence of environmental boundary conditions including dissolved oxygen (DO) concentration, light illumination and water temperature on NO 3 -N removal was also investigated with batch experiments. The results indicated that the DO concentration greatly impacted on NO 3 -N removal in the TATP-NZVI-contained solution, and the NO 3 -N removal efficiencies were 58.5% and 83.3% with the corresponding DO concentrations of 9.0 and 0.3 mg/L after 6 h of treatment, respectively. Compared to DO concentrations, no significant (p > 0.05) effect of light illumination on NO 3 -N removal and NH 4 -N generation was detected. The water temperature also has great importance concerning NO 3 -N reduction, and the removal efficiency of NO 3 -N at 25 °C was 1.25 times than that at 15 °C. For groundwater, therefore, environmental factors such as water temperature, anaerobic conditions and darkness could influence the NO 3 -N removal efficiency when TATP-NZVI is present. This study also demonstrated that TATP-NZVI has the potential to be developed as a suitable material for direct remediation of NO 3 -N-contaminated groundwater.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Peng Mu,Liang Song,Le Geng,Jian Li
Solar steam generation has attracted much attention due to its efficient and ecofriendly characteristics for application in water desalination and wastewater treatment. Many strategies have been developed to prepare the photothermal conversion materials. However, it is a challenge for preparing the materials with high energy efficiency, long durability and excellent salt resistance under 1 kW·m −2 illumination by using low-cost materials and simple method. Here, we report an ATP (Attapulgite) based PArG aerogel with low thermal conductivity (0.167 W·m −1 ·K −1 ), high mechanical property and superhydrophilicity by using combination of physical/chemical crosslinking of the ATP, PVA, GO and PA and freeze-drying for the efficient solar steam generation. The as-prepared PArG-A30 aerogel shows aligned three-dimensional porous structure and possesses high evaporation performance both in salt solution and the simulated seawater. The evaporation rate is calculated to be 1.4914 kg·m −2 ·h −1 for pure water, 1.4382 kg·m −2 ·h −1 for 20% of NaCl solution and the corresponding energy conversion is found to be 89.5% and 86% under 1 kW·m −2 illumination. In addition, the as-prepared PArG-A30 aerogel shows excellent durability and salt resistance in 20% NaCl solution, indicating the excellent the desalination performance of the resultant PArG-A30 aerogels. This study may offer a new approach to scalable fabricate a novel solar steam generator for the efficient solar steam generation by using simple method and low-cost materials.
研究领域:
材料科学
·
环境科学
✓ 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）