ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·Vol. 31
·期 16
·24220-24234
·
IF 0
Song Jie,Li Yidan,Chen Lijun,Zhao Dong,Yu Shuang,Huang Liangxian
Two natural adsorbent materials, potassium humate (KHA) and montmorillonite (MMT), were successfully prepared by embedding them in sodium alginate (SA) gel spheres through physical cross-linking with CaCl 2 . And CaCO 3 was used as a porogenic agent to prepare the porous composites, KHA/SA/MMT. The materials were characterized by using XRD, TGA, SEM, and N 2 adsorption/desorption equipment. The results showed that MMT and KHA were successfully embedded in the SA gel; the introduction of MMT increased the thermal stability of the composites and the embedding of MMT, and the porogenic effect of CaCO 3 increased the specific surface area of the composites substantially, which provided favorable conditions for adsorption and treatment of pollutants. In addition, a one-way exploratory experiment yielded a higher removal rate of Rhodamine B (RhB) at D = 0.6 g/L, pH = 5, C 0 = 100 mg/L, and t = 360 min. The adsorption kinetics and adsorption isotherm conformed to the secondary kinetic model and Langmuir model, respectively, and the maximum adsorption of RhB by KHA/SA/MMT could reach up to 884.96 mg/g at 303 K. The adsorption mechanism for RhB was shown by FT-IR and XPS analyses to be possibly bound by non-covalent bonding forces. After seven consecutive adsorption–desorption cycles, the adsorption of RhB by KHA/SA/MMT still reached 80.75%. Therefore, the prepared gel spheres have the advantages of easy regeneration and efficient reuse and great potential for application in purifying RhB from wastewater.
研究领域:
环境科学
·
材料科学
·
化学工程
·
高分子科学
·
水处理技术
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DOI
ChemCatChem
·
2018
·Vol. 10
·期 18
·4143-4153
·
IF 4.674
Xinyu Wang,Jing Lu,Yunlong Zhao,Xiaopeng Wang,Zhang Lin,Xueming Liu,Ronglan Wu,Chao Yang,Xintai Su
Graphical SuperHUMATE performance : A novel catalyst, carbon anchored nickel/heazlewoodite nanoparticles (Ni/Ni 3 S 2 @C nanosheets), was fabricated by facile pyrolysis of solid precursor with potassium humate as carbon source and sulfur source. The Ni/Ni 3 S 2 @C nanocatalyst exhibited superior catalytic performance towards 4-nitrophenol reduction with excessed sodium borohydride as reactant, which the K /m value up to 166 s −1 g −1 . A facile molten salt method was utilized for the synthesis of carbon anchored nickel/heazlewoodite nanoparticles (Ni/Ni 3 S 2 @C nanosheets) with potassium humate as the carbon and sulfur source and NaCl as template. The morphology, particle size and crystallinity of the products were characterized by various techniques containing TEM, FE-SEM and XRD. Furthermore, the mesoporous Ni/Ni 3 S 2 @C own easy accessibility of active sites and high surface area (149.04 m 2 g −1 ). Thus, the as-prepared Ni/Ni 3 S 2 @C exhibited prominent performance for catalytic reduction of 4-nitrophenol (4-NP). Catalytic reduction of other nitrophenols (NPs) were also tested which can prove that the catalyst own selectivity on reduction of NPs. For durability, the property of the catalyst does not decrease obviously after five cycles. More significant correlations concerning effect of activation parameters ( E a =37.21 kJ mol −1 ) on 4-NP reduction were scrutinized and discussed. Hence, we provide a facile method for fabrication of metal/metal sulfide@C which own better dispersity, small dimension and excellent catalytic performance for further studies.
研究领域:
材料科学
·
催化
·
化学工程
·
纳米技术
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Jie Song,Yingnan Zhou,Lijun Chen,Zhiwen Yuan,Yuhua Niu,Xi Li,Liangxian Huang
This study employed β-cyclodextrin (β-CD) for the hydrophilic modification of iron tetraoxide (Fe3O4) magnetic materials. Subsequently, potassium humate (KHA) and carboxymethyl cellulose (CMC) were used as raw materials. A β-CD@Fe3O4/KHA/CMC/AM/MAH hydrogel with magnetic properties which can be easily recycled was synthesized for the slow release of glyphosate (GLY). FTIR, XRD, TG and VSM analyses demonstrated that the hydrogel possesses good thermal stability and magnetic properties with a saturation magnetization strength of 29.77 emu g−1. The equilibrium solubility of the hydrogel in pH = 7.4 and pH = 8.5 buffer was 24.58 g g−1 and 25.83 g g−1, respectively. The maximum release of GLY was recorded at 63.31% and 67.78%, with the drug release behavior under different loading gels following the Fickian diffusion mechanism. A pot planting experiment indicated that the water content of plants treated with the β-CD@Fe3O4/KHA/CMC/AM/MAH drug-loaded gel decreased by 51.69%. Additionally, soluble protein levels decreased to 2.69 mg g−1, chlorophyll content decreased to 0.486 mg g−1, SOD levels decreased to 43.81 U g−1, and MDA increased to 4.02 μmol g−1, effectively inhibiting the growth of grass and providing a theoretical basis for achieving slow drug release.
研究领域:
材料科学
·
高分子科学
·
环境科学
·
农业化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Jie Song,Lijun Chen,Yingnan Zhou,Zhiwen Yuan,Yuhua Niu,Zhiqiang Wei
With the rapid development of industrialization, the removal of heavy metal ions and small organic molecules from wastewater has triggered a hot debate. ZIF-8 was grown on a sodium alginate backbone using an in situ growth technique, the core-shell P-SMG@ZIF-8 was synthesized. It was also characterized by FTIR, XRD, SEM, UV–Vis and XPS, and the optimal conditions and mechanism of adsorption were explored. At pH 2.0, a contact time of 200 min, and 298 K, removal of Cu(II) and Ph up to 80.2 %, 65.6 % by P-SMG@ZIF-8, adsorption behavior consistent with Langmuir model for pseudo-secondary rates, the saturated adsorption of Cu(II) and Ph could reach up to 83.5812 mg/g and 78.1779 mg/g, respectively. And the adsorbed P-SMG@ZIF-8 is easy to separate and reusable, which is a cost-effective and efficient natural product-based adsorption material.
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
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Lijun Chen,Junfeng Zhu,Jie Song,Jing Yang,Yuhua Niu,Dong Zhao
Titanium dioxide-based materials treat wastewater contaminated by organic pollutants. However, the wide band gap and the ease of agglomeration limit its photocatalytic activity. PDA/PEI@TiO 2 @P-HSM composites were synthesized using PDA/PEI as an interfacial bonding modifier via polymerization reaction. Phase and chemical bonding analysis confirmed the modifiedTiO 2 coated P-HSM, which can effectively reduce the band gap and control the agglomeration of titanium dioxide, i.e., suitable to degrade RhB. Under UV irradiation, PDA/PEI @TiO 2 @P-HSM can remove RhB up to 90 % in 100 min. The photocatalytic degradation process conforms to the Langmuir-Hinshelwood quasi-primary equation. The composite exhibited excellent stability and recycling i.e., a high removal effect, with a removal rate of up to 60 % after seven cycles of reaction.
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
ENVIRONMENTAL RESEARCH
·
2025
·
IF 7.7
Jie Song,Zhiwen Yuan,Lijun Chen,Yuhua Niu,Zhiqiang Wei
For the effective removal of phenol from the environment, photocatalytic synergistic adsorption is currently one of the key methods. By leveraging the polysaccharide backbone structure of sodium alginate (SA), Zinc hydroxystannate (ZHS) was introduced into the gel structure using a co-precipitation technique. Additionally, gangue waste was repurposed through a polymerization reaction. This approach not only enhanced the specific surface area of the gel material but also compensated for its limited absorption in the visible light spectrum. As a result, the PKSPGM@ZHS was successfully synthesized. The adsorption of Ph by PKSPGM@ZHS in the dark reaction phase aligns with the quasi-second-order kinetic model and the Langmuir model, it shows that this is a spontaneous exothermic process, and its photocatalytic process conforms to the Langmuir-Hinshelwood first-order reaction kinetics model, where ZHS undergoes a series of reactions to generate ·OH radicals from ·O 2 − in the presence of photocatalysis. Ph can be degraded to CO 2 and H 2 O through a series of reactions, thereby achieving complete removal of Ph from wastewater solutions, with a removal rate reaching up to 70 %. After 5 cycles of adsorption/photocatalysis tests, KSPGM@ZHS still h exhibits a high removal efficiency, with the removal rate remaining at 54.26%. This demonstrates its excellent recyclability.
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
JOURNAL OF POLYMER RESEARCH
·
2024
·Vol. 32
·期 1
·1-13
·
IF 2.6
Song Jie,Wu Haodi,Niu Yuhua,Hui Baoli,Wang Youqian,Li Long
Soilless culture is gradually becoming a new direction in the development of agricultural cultivation. However, the synthetic substrates currently used suffer from the problems of being nutrient-less and non-degradable, which will ultimately lead to the misuse of chemical fertilizers and serious environmental pollution. In this study, L-Tyrosine(L-Tyr) was used as a nitrogen nutrient modifier, and L-Tyr-PCL-PCDL-PUF/KHA (L-Tyrosine-Polycaprolactone-Polycarbonate-Polyurethane Foam/Kalium Humate, LTPPPK) soilless substrate was prepared by using biodegradable polycaprolactone and potassium humate, a natural plant-stimulating hormone, as raw materials. The experimental results demonstrated that the incorporation of L-Tyr significantly enhanced the LTPPPK material's vesicular pore structure and morphology, characterized by an apparent density of 65.69 kg/m 3 , a porosity of 85.58%, a pore diameter of 0.96 ± 0.17 mm, a compressive strength of 0.015 MPa, and optimal thermal stability when the L-Tyr content was 3%. Additionally, L-Tyr enhanced the water absorption and retention capabilities, as well as the degradation performance of the material, achieving a maximum water absorption factor of 12.524 g/g. The degradation rate was found to be 10.95% after 6 months of degradation by N435 lipase, indicating that the material is environmentally friendly upon disposal. As a lettuce growing substrate, the LTPPPK material showed a 7.90% and 9.34% growth in root whisker and leaf width compared with the unmodified one after 42 days of lettuce growth, and the content of chlorophyll and soluble protein increased by 4.46% and 16.42%. It was shown that LTPPPK material can provide a certain amount of nitrogen and potassium for plant growth when used as lettuce cultivation substrate.
研究领域:
农业科学
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED ELECTROCHEMISTRY
·
2015
·Vol. 46
·期 1
·113-121
·
IF 2.409
Luo HeMing,Yang YanFei,Chen YanZheng,Zhang JianQiang,Zhao Xia
This paper presents the direct synthesis of highly porous carbons via the carbonization of potassium humate in inert atmosphere without any activation. Carbonization temperature is important for carbon structures and their electrochemical performance in electric double-layer capacitors. The CK800 material derived from potassium humate has a high–specific surface area of 890 m 2 g −1 and an ideal average pore size of 2.56 nm. The CK800 material can also deliver a high-specific capacitance of 232 F g −1 (26.1 µF cm −2 ) at a constant charge/discharge current of 0.5 A g −1 . This capacitance is maintained at a value of 114 F g −1 (12.8 µF cm −2 ) at 30 A g −1 . This material also has good cycle stability with over 93.5 % capacitance retention after 5000 cycles when measured in a three-electrode system using 6 M KOH as electrolyte. In this study, the CK800 material is tested in a three-electrode system using 1 M NaHCO 3 as electrolyte. Operational voltage in 1 M NaHCO 3 aqueous solution could be extended up to 1.3 V.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2023
·Vol. 31
·期 7
·2999-3014
·
IF 5.3
Song Jie,Chen Lijun,Niu Yuhua,Wei Zhiqiang,Sun Yonghui
From the perspective of environmental protection, high removal rate, reusable and degradable, amino-functionalized porous hydrogel material P-(EA-β-CD/KHA/AC) was synthesized by introducing ethylamino cyclodextrin, humic acid, and activated carbon, using polyacrylic acid as the carrier. MB and Cr (VI) are common wastewater pollutants, thus, Such contaminants must be removed from the water. The gel materials before and after adsorption were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The removal of MB and Cr(VI) showed high adsorption capacity. At 298 K and pH 8, the adsorption capacities of P-(EA-β-CD/KHA/AC) hydrogel for MB and Cr(VI) were as high as 262.31 and 170.12 mg/g, respectively, and the removal rates were 98.96% and 70.27%, respectively. The adsorption behavior follows the pseudo-second-order kinetic equation, conforming to the Langmuir model; and through intermolecular forces, π–π conjugation, chelation, and other interactions, entropy-increasing, endothermic, and spontaneous process is formed. The regeneration and degradability experiments of P-(EA-β-CD/KHA/AC) hydrogel were conducted and its recycling performance was verified.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2023
·
IF 5.3
Song Jie,Chen Lijun,Wei Zhiqiang,Niu Yuhua,Zhu Xiaoli
Photocatalytic degradation combined with adsorption removal of contaminants is one of the most effective methods of removing TCH P-(CM-β-CD/HPCS/KHA)@AC/TiO 2 composite material was prepared by etheration modification of β-Cyclodextrin (β-CD) and combination of activated carbon (AC) and TiO 2, the adsorption/photocatalytic degradation behavior of tetracycline hydrochloride (TCH) was studied, the P-(CM-β-CD/HPCS/KHA)@AC/TiO 2 composites were successfully prepared by FTIR, SEM, XRD and XPS Characterisation tests. At 298 K and pH 4, the removal rate of TCH can reach 98% in 2 h. The adsorption of the composites follows the quasi-second-order kinetic model, which is highly consistent with the Langmuir model, an endothermic and spontaneous adsorption process is formed through intermolecular forces and coordination. Photocatalytic degradation follows the quasi-first order model, the photocatalytic performance was verified in conjunction with TOC testing, and the process was known to be a detoxification process through toxicity testing. Finally, after 10 cycles of treatment, the composite material removed up to 70% of TCH.
✓ 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）