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
RSC Advances
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2018
·Vol. 8
·期 57
·32522-32532
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IF 2.936
Hong Lei,Yao Wu,Sen Yang,Chunfang Fu,Jichuan Huo
Preparation of new materials from biomass is good for sustainable development. Carbon/carbonaceous foams (CFs), as important materials widely applied in both military and civil use, are usually made from nonrenewable materials at high temperature (usually over 1000 °C) and high pressure (at MPa magnitude). Although some biomass raw materials have been used, there is still a fascinating issue waiting to be discussed. That is, what kind of biomass would be suitable for making CFs, or what the biggest challenge might be if these raw materials are used. Herein, a CF with advanced compressibility was made from starch with a simple and energy efficient strategy. The product can be made at much lower temperature (below 500 °C) and pressure (∼190 Pa) than conventional strategies. The understanding of the conversion mechanism provides inspiration for the conversion of other biomass into value-added carbonaceous materials. Due to the presence of reactive groups on the surface of the as-prepared CF, the product can be further modified or used as a substrate to prepare composites for catalysis, phase change energy storage, sensors, water purification, and so on. In this work, its potential application in oil/water separation was demonstrated.
研究领域:
材料科学
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生物化学
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DOI
PubMed
高影响因子
Catalysts
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2022
·Vol. 12
·期 5
·479
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IF 4.501
Xiangxiang Li,Shuling Chang,Yanting Wang,Lihong Zhang
The selective and effective conversion of CO2into available chemicals by electrochemical methods was applied as a promising way to mitigate the environment and energy crisis. Metal silver is regarded as an efficient electrocatalyst that can selectively convert CO2into CO at room temperature. In this paper, a series of coral-like porous Ag (CD-Ag) catalysts were fabricated by calcining silver-carbonaceous microsphere (Ag/CM) precursors with different Ag content and the formation mechanism of CD-Ag catalysts was proposed involving the Ag precursor reduction and CM oxidation. In the selective electrocatalytic reduction of CO2to CO, the catalyst 15 CD-Ag showed a stable current density at −6.3 mA/cm2with a Faraday efficiency (FE) of ca. 90% for CO production over 5 h in −0.95 V vs. RHE. The excellent performance of the 15 CD-Ag catalysts is ascribed to the special surface chemical state and the particular nano-coral porous structure with uniformly distributed Ag particles and pore structure, which can enhance the electrochemical active surface areas (ECSA) and provide more active sites and porosity compared with other CD-Ag catalysts and even Ag foil.Keywords:carbon dioxide reduction;silver;carbonaceous microsphere;carbon monoxide;electrochemical
研究领域:
环境科学
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材料科学
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电化学工程
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DOI
高影响因子
CATALYSIS TODAY
·
2018
·
IF 4.667
Zhengyuan Jin,Jiaqi Chen,Shaolong Huang,Jiahao Wu,Qitao Zhang,Wenfei Zhang,Yu-Jia Zeng,Shuangchen Ruan,Teruhisa Ohno
A composite photocatalyst composed of carbonaceous material and g-C 3 N 4 is fabricated by a simple thermal treatment of melamine (hydrothermally treated melamine) with cellulose acetate. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and elemental analysis data reveal the formation of carbonaceous material in the composites. The photocatalytic activity was evaluated by the H 2 liberation rate from water splitting under visible-light irradiation. The optimized composite, which is prepared from the precursor of hydrothermally treated melamine with cellulose acetate, shows 35 times higher photocatalytic activity than bulk g-C 3 N 4 (melamine as the precursor) and a quantum efficiency of 1.05% (0.01 g of catalyst) under irradiation at 420 nm. The enhancement of the photocatalytic activity is ascribed to the unique electronic properties of the carbonaceous material, the enlarged specific surface area and the improved light absorption.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2020
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IF 8.758
Zhenggang Zhang,Zhendong Li,Huan Lin,Muqin Wang,Zhifu Luo,Feihong Ren,Zixuan Liu,Chen Zhou,Zhe Peng,Deyu Wang
Utilization of the lithium (Li) metal anode is seriously prevented by the undesirable side reactions with electrolyte solvents due to their mismatched energy gaps and easily lacerated SEI layer. In this work, we develop a transplantable carbonaceous membrane with a particular ability of filtrating Li+ ions by blocking organic solvents and use it as an independent protective component to isolate lithium metal anode from the electrolytes. This graphene-supported N-doped membrane (GNM) can separate organic carbonates of dimethyl carbonate (DMC) and diethyl carbonate (DEC) from H2O–DMC/DEC mixtures by holding back the organic solvents. When this membrane is used in a Li–Cu cell, a high Li Coulombic efficiency (CE) of 98.5% is maintained in carbonate electrolyte over 400 cycles. Application of GNM in Li–O2 full cell provides a sustainable use of Li metal for more than 200 cycles (2000 h) by keeping its shiny metal luster. Our results demonstrate that the use of an independent component with Li+ filtrating ability, such as the transplantable membrane of GNM developed in this work, should be a feasible remedy to protect Li metal anode in practical Li metal batteries.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2021
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IF 4.821
Xing Zhang,Mingyue Yu,Yingying Li,Feifei Cheng,Yanqun Liu,Mingqi Gao,Guangliang Liu,Ligang Hu,Yong Liang
Disposed cigarette butt is one of the biggest solid, non-biodegradable wastes across the world. Cigarette butts (CBs) made of cellulose acetate are good candidates for the initial raw materials of carbon materials synthesis, providing a possible way for waste CBs recycling. Herein a carbonaceous adsorbent derived from waste CBs was prepared for the heavy metals removal from aqueous solution. The product activated at 500 °C has a maximum adsorption capacity for lead ions , which has a favorable balance of high specific surface area and abundant O-containing functional groups, facilitating the adsorption of heavy metals ions . The adsorption experiments showed that the pH of the solution played a pivotal role in the adsorption of heavy metals by CBs-derived activated carbons and the optimal pH for the adsorption was around 5. Effective adsorption of chromium (Cr 3+ ), cobalt (Co 2+ ), nickel (Ni 2+ ), lead (Pb 2+ ) and cadmium (Cd 2+ ) demonstrated that the prepared materials can be used for multiple heavy metal ions removal. The prepared materials were able to adsorb Pb 2+ within ten minutes, and the adsorption process can be well described by the pseudo-second order model, indicating that the chemical adsorption is the rate determining step for the adsorption process. The equilibrium data followed the Langmuir isotherm model and the corresponding maximum adsorption capacity for Pb 2+ was 249.3 mg g −1 . Considering the merits of low cost, easy synthesis pathway and excellent removal ability of heavy metals, CBs-derived carbonaceous adsorbent exhibits potential application in the fields of heavy metal contaminated water treatment.
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
RESEARCH ON CHEMICAL INTERMEDIATES
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2019
·Vol. 46
·期 2
·1469-1485
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IF 2.064
Yu Xin,Peng Lincai,Pu Qiuyu,Tao Ruili,Gao Xueying,He Liang,Zhang Junhua
The preparation and application of biorenewable carbon-based catalyst are attracting increasingly attention in the field of green and sustainable chemistry. Here, a facile and low-cost lignosulfonate-based carbonaceous solid acid (LSS) was availably prepared via directly sulfonating lignosulfonate that was from sulfite pulping industry, and used to catalyze biomass-derived furfuryl alcohol to yield versatile butyl levulinate. The fabrication and properties of LSS were highly sensitive to the sulfonation conditions (i.e., lignosulfonate-to-H 2 SO 4 ratio and temperature). The physicochemical properties of the as-prepared LSS were well characterized using BET surface area, acid–base titration, SEM, XRD, FT-IR, XPS, and TGA techniques. The LSS contained –SO 3 H, –COOH and phenolic –OH groups and was ideal to perform the reaction of furfuryl alcohol with n-butanol to obtain butyl levulinate in yield higher than 95% at 110 °C for 8 h with catalyst dosage of 15 g/L. Meanwhile, the catalyst deactivated increasingly with a recycle number that was attributed to the adsorption of formed polymeric by-products on the active catalyst sites, and the slightly deactivated catalyst after plain sulfonation treatment was found to remain active with an almost unchanged product yield in consecutive cycles. This work highlights an economic, eco-friendly, sustainable and promising protocol for catalytic upgrading of bio-based compounds.
研究领域:
绿色化学
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可再生资源利用
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催化化学
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DOI
高影响因子
MICROCHIMICA ACTA
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2020
·Vol. 187
·期 7
·1-8
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IF 6.232
Li Nianlu,Li Ruohan,Song Yinshuang,Ma Long,Gao Cuiling,Li Lili,Cheng Shi-Bo,Zhang Xiaoli,Chen Jing,Zhan Jinhua
Carbonaceous shell-coated γ-Fe 2 O 3 nanoparticles (γ-Fe 2 O 3 @CNM) were synthesized from glucose caramelization and used as a novel magnetic solid-phase extraction medium for malachite green and crystal violet in environmental water. Malachite green and crystal violet were absorbed on to γ-Fe 2 O 3 @CNM by electrostatic and π-interactions. The morphologies, pore structures, surface functional groups, and magnetic properties of γ-Fe 2 O 3 @CNM were characterized by TEM, FTIR, hysteresis regression, Brunauer-Emmet-Teller analysis, zeta potential, XPS, and XRD. The magnetic solid-phase extraction procedure was optimized by extraction pH, absorption time, desorption solvent, and desorption time. The absorption capacities (q max values) for malachite green and crystal violet were 34.2 and 27.9 mg g −1 , respectively. After magnetic solid-phase extraction, malachite green and crystal violet were determined by LC-MS/MS. The analytical method was validated with a linear range of 0.02–20 ng mL −1 , enrichment factor of 25.8 and 25.4, method detection limit of 0.004 ng mL −1 , and intra-day precisions of 2.1% and 2.6% for malachite green and crystal violet, respectively. The relative recovery was found to be 73.4–101.5% for malachite green and 83.1–102.7% for crystal violet upon the application of the magnetic solid-phase extraction method to real water samples from lake, spring, sea, fishpond, and industrial waste.
Caramelized-carbon-coated magnetic nanoparticles are used as novel extraction medium based on electrostatic and π-interactions. It is porous, amphiphilic, electronegative, magnetically strong, and features abundant absorption site. These characteristics stimulate mass transfer and result in a useful MSPE method in environmental analysis.
研究领域:
分析化学
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环境科学
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DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
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2019
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IF 7.149
Han-Qing Zhao,Shi-Qi Huang,Wen-Qing Xu,Yi-Ran Wang,Yi-Xuan Wang,Chuan-Shu He,Yang Mu
Pyrogenic carbonaceous matter (PCM) catalyzes the transformation of a range of organic pollutants by sulfide in water; however, the mediation mechanisms are not fully understood. In this study, we observed for the first time that the degradation of azo dyes by sulfide initially underwent a lag phase followed by a fast degradation phase. Interestingly, the presence of PCM only reduced the lag phase length of the azo dye decolorization but did not significantly enhance the reaction rate in the fast degradation phase. An analysis of the azo dye reduction and polysulfide formation indicated that PCM facilitated the transformation of sulfide into polysulfides, including disulfide and trisulfide, resulting in fast azo dye reduction. Moreover, the oxygen functional groups of the PCM, especially the quinones, may play an important role in the transformation of sulfide into polysulfides by accelerating the electron transfer. The results of this study provide a better understanding of the PCM-mediated abiotic transformation of organic pollutants by sulfide in anaerobic aqueous environments.
研究领域:
环境科学
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化学
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产品关联
DOI
PubMed
高影响因子
CHINESE CHEMICAL LETTERS
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2022
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IF 8.455
Han-Qing Zhao,Wen-Qiang Li,Nannan Hou,Lei Li,Yiran Wang,Peili Lu,Yang Mu
Pyrogenic carbonaceous matter (PCM) catalyzes azo dye decolorization by sulfide, but the nitrogen doping catalytic mechanisms are poorly understood. In this study, we found that stagnate time of azo dye methyl orange (MO) decolorization was reduced to 0.54-18.28 min in the presence of various nitrogen-doped graphenes (NGs), remarkably lower compared to graphene itself. Particularly, graphitic nitrogen played a critical role in NGs-catalyzed MO decolorization by sulfide. Gas chromatography-mass spectrometry and in-situ surface Raman analysis demonstrated that doping nitrogen, especially graphite one facilitated reactive intermediate polysulfides formation. This is attributed to the improved electron conductivity through graphitic nitrogen doping, and the enhanced interactions between sulfide and carbon atoms bonded to graphitic nitrogen. This study not only provides a better understanding of PCM impact on transformations and fates of organic pollutants in natural environments, but also offer a new regulation strategy for more efficient wastewater treatment processes in PCM-catalyzed engineering systems.
研究领域:
环境科学
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化学工程
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产品关联
DOI
高影响因子
Molecular Catalysis
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2024
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IF 3.9
Haoxi Jiang,Hanwen Gu,Lingtao Wang,Guochao Yang
Zr-BEA zeolite was introduced to the aldol condensation of acetaldehyde and showed high crotonaldehyde selectivity (over 85%), but it suffered from rapid deactivation, where the conversion of acetaldehyde decreased from 16.4% at 1 h to 6.5% at 8 h. The spent Zr-BEA zeolites at different time-on-stream (TOS = 1, 2, 4, 6, and 8 h) were characterized by SEM, XRD, XPS, FT-IR, TGA, N 2 physical adsorption, and GC–MS to understand the deactivation mechanism. Pore blocking and Zr active site coverage caused by carbonaceous deposits were both responsible for the deactivation. Furthermore, the main carbonaceous species were unsaturated aldehydes, unsaturated ketones, and aromatic compounds.
研究领域:
催化化学
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材料科学
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产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
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2024
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IF 5.8
Hongwei Wang,Yaoping Lu,Hehang Sun,Chunping Hou,Bolin Gong,Junjie Ou
With an increasing requirement for functional materials, anisotropic Janus particles have gradually developed into highly attractive materials in catalysis, drug delivery, lotion stabilizer and other fields. Herein, non-crosslinked poly(glycidyl methacrylate) (poly(GMA)) served as seed particle, GMA and trimethylolpropane trimethylacrylate (TMPTMA) were utilized as functional monomer and crosslinker, respectively. The composition of water phase consisted of polyvinyl alcohol (PVA) and sodium dodecyl sulfonate (SDS), and 2,2-dimethoxy-2-phenylacetophenone served as photo-initiator. A series of Janus particles with asymmetric morphologies such as lychee-like, acorn-like, half raspberry-like and hamburger-like were fabricated via seed-swelling photoinitiated polymerization. In addition, several parameters such as the ratio of monomers and crosslinker and the type of porogenic solvent were adjusted to improve the anisotropy, dispersity and uniformity. Subsequently, Janus carbonaceous particle was acquired via calcination and utilized as an anode material for lithium-ion batteries. The relevant properties were measured via electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), cyclic performance and constant current charging and discharging testing, demonstrating better performance for electrochemistry. After the second cycle, the stable coulombic efficiency of 95.24% over 100 cycles. Thus, our strategy provides an excellent insight for fabricating Janus carbonaceous particle with controllable morphology, and is expected to have applications in other fields.
研究领域:
材料科学
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能源存储
·
纳米技术
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）