JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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2025
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IF 2.4
Vinh Thanh Chau Doan,Nhung Tuyet Thi Nguyen,Thinh An Tan Le,Phuong Hoang Tran
BACKGROUND Furfural is an important platform compound obtained through the dehydration of xylose, a key component of lignocellulosic biomass. Carbonaceous catalysts for this conversion have received rising interest due to low-cost price and easy modification. Rice husk is an abundant agricultural waste that could be employed as a carbon source for the preparation of many carbon materials, especially through green methods. RESULTS A carbonaceous catalyst (RH-SO₃H) derived from rice husk through microwave (MW)-assisted carbonization and sulfonation was employed as the catalyst for the conversion of xylose to furfural in dimethyl sulfoxide (DMSO). Fourier transform infrared (FT-IR) spectroscopy results indicated that RH-SO 3 H had typical signals of Brønsted acid groups while other characteristics were examined through other techniques, namely X-ray diffraction (XRD), energy-dispersive X-ray (EDX) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), and elemental mapping. Through many investigations, the furfural yields were impacted by the nature of solvents, substrate concentrations, catalyst dosages, reaction temperatures, and reaction time. A furfural yield of 60.3% was obtained at 160 °C for 8 h. The catalyst recyclability and the scalability ability of the procedure were examined, and a mechanism was also proposed. CONCLUSION Rice husk could be used as a starting source to prepare a carbon material via a MW-irradiated protocol. The conversion of xylose to furfural under the catalysis of RH-SO 3 H was easily operated, and the desired product was obtained in good yield. The crucial advantages of the current process are environmentally friendly, inexpensive, simple, and highly large-scale application. The findings pave the way for eco-friendly industrial applications, promoting circular economy principles and reducing reliance on non-renewable resources in platform chemical production. © 2025 Society of Chemical Industry (SCI).
研究领域:
化学工程
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可再生资源利用
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DOI
高影响因子
POLYMER BULLETIN
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2018
·Vol. 76
·期 9
·4521-4537
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IF 1.589
Song Yunna,Shi Huiqing,Li Yongshen,Jia Zhixin,Li Ning,Li Jihui
A one-pot and two-step process in the case of microwave irradiation was used to fabricate polyvinyl alcohol polymer sponge (PVA polymer sponge) and polyvinyl alcohol/phytic acid polymer sponge (PVA/PA polymer sponge). The characterization of them showed that the ether bonds made linear PVA molecules weave a stacked two-dimensional structure in PVA polymer sponge, and the ether bonds and phosphonate bonds made the linear PVA molecules and cricoid PA molecules weave three-dimensional structure in PVA/PA polymer sponge, which owned the polyporus morphology. The investigations for thermal stability, surface resistivity and self-extinguishing time exhibited that they apart reached 235.5 and 354.8 °C and 5.40 × 10 9 and 1.63 × 10 5 Ω/sq and 18.00 and 9.00 s.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
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2014
·Vol. 16
·期 38
·8994-9000
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IF 3.858
Tiantian Xing,Yongbing Lou,Qilong Bao,Jinxi Chen
Nanocrystals of ZIF-8 have been successfully prepared in the presence of non-ionic triblock copolymers P123 and F127 under microwave irradiation. Noticeably, the reaction time could be significantly reduced down to 1 min. The obtained ZIF-8 nanocrystals had sizes of sub-104 nm and exhibited a high BET surface area of 1599 m2 g−1. This approach is expected to be an efficient and environmentally friendly method for the preparation of ZIF-8.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
Frontiers in Chemistry
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2018
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IF 4.155
Rao Wenxiu,Lv Guocheng,Wang Danyu,Liao Libing
Nanoscale zero valent iron has been a widespread concern in various fields due to its large specific surface area and high reactivity. However, nanoscale zero valent iron (nZVI) is very likely to aggregate and be oxidized, which limit its wide application in industry. Most clay minerals have a large adsorption capacity of cations due to their negative charges and high specific surface areas. In the present work, nZVI was loaded onto two typical clay minerals: kaolinite and sepiolite, to inhibit its oxidation and aggregation. The composites were applied to degrade Rhodamine 6G (Rh 6G) under microwave irradiation. The effects of pH value and microwave power on degradation were studied. The results showed that the removal amount of Rh 6G by nZVI/kaolinite was 110 mg/g in 15 min, while it reached 300 mg/g by nZVI/sepiolite. The difference between these two composites was mostly determined by the structures of these two clay minerals.
研究领域:
环境科学
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材料科学
✓ 已验证
DOI
PubMed
高影响因子
Nanomaterials
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2019
·Vol. 9
·期 3
·411
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IF 4.034
Yu-Ping Zhang,Pan-Pan Li,Peng-Fei Liu,Wan-Qing Zhang,Ji-Chao Wang,Cheng-Xing Cui,Xiang-Jun Li,Ling-Bo Qu
Polymerization-induced phase separation is comparatively applied to fabricating a superhydrophobic micro/nano surface by microwave and ultraviolet (UV) irradiation. The monolithic coatings can be tailored easily on different substrates with excellent chemical and mechanical stability in rigid conditions. Importantly, the patterned filter paper is successfully used for the colorimetric detection of nitrite handily.Keywords:polymerization;superhydrophobic material;microwave irradiation;UV irradiation;nitrite
研究领域:
材料科学
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化学工程
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2016
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IF 4.836
Sheng Deng,Peng Wang,Guangshan Zhang,Yuan Dou
A novel thiosemicarbazide modified adsorbent (PAN MW –TSC) based on polyacrylonitrile fiber was successfully synthesized under microwave irradiation, which was applied for the uptake of Cd(II) and Pb(II) from aqueous solution subsequently. Microwave irradiation method is a new approach to achieve the modification and it turns out that just a 30 min process is enough for the anchoring of functional groups in the fiber matrix. The surface characterization was performed by fourier transform infrared spectroscopy (FT–IR), scanning electron microscopy (SEM) elemental analysis (EA) and thermogravimetric analysis (TGA), indicating that the modification was successfully accomplished. Batch adsorption experiments including equilibrium isotherms, kinetics and the effects of pH and temperature on the adsorption of Cd(II) and Pb(II) were systematically studied. Among three kinetic models, the pseudo-second-order kinetic model provides the best correlation for the process. The nonlinear resolution of the Langmuir isotherm equation has been found to show the closest fit to the equilibrium date. Thermodynamic parameters, involving △ G , △ H and △ S were also calculated from graphical interpretation of the experimental data, which suggest that metal ions adsorption onto PAN MW –TSC fibers is spontaneous and exothermic. Regeneration of PAN MW –TSC fibers loaded with metal ions was efficiently done with 0.5 M HNO 3 , by which the investigated adsorbent could be used reproductively for five times with a small decrease in sorption capacity. The feasible preparation of PAN MW –TSC fibers with high adsorption capacities opens a new perspective in the potential application for wastewater treatment .
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
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2016
·Vol. 6
·期 22
·17880-17887
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IF 3.289
Guodian Zhu,Xinping Ouyang,Yun Yang,Tao Ruan,Xueqing Qiu
Lignin is an abundant renewable feedstock with a complicated and ill-defined structure. As β-O-4 aryl ether bonds are dominant among all the linkages in lignin, it is important to explore lignin depolymerization targeting the cleavage of the β-O-4 aryl ether bond for efficiently utilizing this biomass. Selective cleavage of chemical bonds in β-O-4 lignin model compounds was investigated by using Fe2(SO4)3, HZSM-5 and Pd/C as catalysts under microwave irradiation. When Fe2(SO4)3 or HZSM-5 was used as a catalyst, the Cα–Cβ bond of the C3 side chain in the model compound was broken to form aldehyde, secondary alcohol or ketone compounds. When Pd/C and formate were used as the catalyst, the β-O-4 aryl bond of the non-phenolic model compound was selectively cleaved and hydrogenation of CC on the side chain occurred at the same time. However, the hydrogenation reaction of CC on the side chain was faster than that of cleavage of the ether bond. Increasing Pd content favored the selective cleavage of the β-O-4 bond, and microwave irradiation accelerated the cleavage of the β-O-4 bond dramatically. At a high dosage of formate or high temperature, the condensation reaction among phenolic products was promoted due to the presence of an active phenolic hydroxyl group. The β-O-4 bond of the phenolic model compound was also selectively cleaved with Pd/C as the catalyst, and the reaction temperatures of cleaving about one half β-O-4 bonds of the non-phenolic and phenolic model compounds were 120 and 100 °C, respectively.
研究领域:
生物化学
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可再生资源利用
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DOI
高影响因子
IEEE TRANSACTIONS ON PLASMA SCIENCE
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2021
·Vol. 49
·期 12
·3764-3769
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IF 1.222
Jie-Qing Fan,Yao Li,Fang Zhang,Jian-Hong Hao,Zhi-Wei Dong,Qiang Zhao
To study the electromagnetic radiation effect of a thermal control layer (TCL) on the surface of general spacecraft in a space environment, a model of thermal control material irradiated with microwaves was established, a particle-in-cell (PIC)-Monte Carlo collisions (MCC) simulation was used, and the processes of field emission, multipacting, outgassing, and impact ionization on the surface of thermal control materials were simulated. By comparing the primary electrons, secondary electrons, and impact ionization electrons produced under different field intensities and frequencies of electromagnetic waves, different compositions of outgassing, and different thermal control materials, the influencing factors and critical thresholds of avalanche ionization were obtained. The simulation results show that whether avalanche ionization occurs in outgassing on the surface of the TCL is affected by the electromagnetic wave amplitude, electromagnetic wave frequency, outgassing composition, and the material of the TCL. This provides a theoretical reference for the safe operation of spacecraft.
研究领域:
空间环境工程
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材料科学
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电磁学
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等离子体物理
✓ 已验证
DOI
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2021
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IF 6.291
Tao Huang,Lulu Zhou,Zhenxing Cao,Shuwen Zhang,Longfei Liu
A microwave (MA) irradiation-persulfate-formate system was constructed to detoxify Cr contamination and solidify the geopolymerization of the alkali-activated composite material. Three series of experiments were correspondingly conducted to evaluate the treatment for the chromate-contaminated soil. The changes in the molar ratios of formate to persulfate and the mass rates of fortifier to soil led to a significantly greater reduction of Cr VI in the detoxification experiments. The increase of blast furnace slag from 50% to 80% in the composite cementitious materials (CCM) intensified the immobilization efficiencies of chromate and the compressive strengths of geopolymer blocks. MA irradiation potentially enhanced the binding of Ca cations to the aluminosilicate compounds. The degree of reaction in the phenomenological kinetics model mathematically verified the geopolymerization process. Ettringite was formed within the structure of the geopolymer in the coupling system. Sulfate radicals released from persulfate not only contributed to the detoxification process but also strengthened the immobilization process.
研究领域:
环境科学
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土壤修复
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材料科学
✓ 已验证
DOI
PubMed
高影响因子
INTEGRATED FERROELECTRICS
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2021
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IF 0.836
Ji Yan,Zhen Li,Xiao-Kai Ma,Xin-Bo Chang,Fu-Jun Liu,Yong Zhang,Li-Zhen Wang
NASICON Na3V2(PO4)3 was investigated as cathode material in hybrid ion batteries using Li as counter and LiPF6 as electrolyte. The highly efficient and homogeneous heating merits of microwave irradiation facilitates the Na3V2(PO4)3 achieving excellent crystal structure, uniform carbon coating, as well as ideal particle size. After microwave irradiation, a specific capacity of 96.5 mAh g−1 is obtained for the first intercalation of lithium ion into Na3V2(PO4)3 at 0.1 C rate. For long-term cycling stability, the capacity retention reaches 84.4% at 5 C rate after 500 cycles. The unique intercalation/extraction characteristic promises Na3V2(PO4)3 an ideal candidate material for next-generation hybrid ion storage system.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2020
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IF 4.244
Yu Yin,Chunhui Ma,Wei Li,Sha Luo,Yushan Liu,Xueyun Wu,Zhenwei Wu,Shouxin Liu
The efficient conversion of glucose to 5-hydroxymethylfurfural (5-HMF) in ionic liquids with MoCl 3 as catalyst under microwave irradiation was demonstrated. Based on 5-HMF yield, the ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) was the best solvent. The results showed that compared to conventional oil-bath heating, microwave irradiation not only reduced the required reaction time from hours to minutes, but also improved the 5-HMF yield. Using 10 mol% of the catalyst, the 5-HMF yield reached 20.61 % at 120 °C after 2.5 h with the oil-bath. However, a 5-HMF yield of 27.66 % could be achieved within 5 min when employing 300 W microwave irradiation. Analyses by nuclear magnetic resonance spectroscopy (NMR) and high-performance liquid chromatography–mass spectrometry (HPLC-MS) demonstrated that the coordinate bond interaction between MoCl 3 /[BMIM]Cl complex and glucose promoted the isomerism of glucose and the dehydration of fructose. Microwave irradiation was also shown to accelerate the bond breaking processes in the reaction.
研究领域:
化学工程
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可再生能源
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催化化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2016
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IF 7.145
Qipeng Cao,Songwang Yang,Qianqian Gao,Lei Lei,Yu Yu,Jun Shao,Yan Liu
The crystal growth process significantly influences the properties of organic–inorganic halide perovskite films along with the performance of solar cell devices. In this paper, we adopted the microwave irradiation to treat perovskite films through a one-step deposition method for several minutes at a fixed output power. It is found that the specific microwave irradiation process can evaporate the solvent directly and heat perovskite film quickly. In comparison with the conventional thermal annealing process, a microwave irradiation process assisted fast and controllable crystallization of perovskite films with less energy-loss and time-consumption and therefore resulted in the enhancement in the photovoltaic performance of the corresponding solar cells.
研究领域:
材料科学
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能源科学
✓ 已验证
DOI
高影响因子
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