Article
Chemistry, Physical
Wenliang Wang, Jiale Huang, Yishuai Fu, Weikun Jiang, Yutong Chen, Yujun Ma, Sizhe Han
Summary: In this study, a 3D porous Fe-MoS2/CMF catalyst with nanoflower microstructure was successfully synthesized by a simple one-step hydrothermal method, which effectively improved the yield of target monophenols and enhanced the economic competitiveness of lignin valorization. Experimental results revealed that Fe doping increased the efficiency of the catalytic conversion reaction and promoted the cleavage of the beta-O-4 ether bond, in line with theoretical calculations. Finite element simulation also demonstrated that the Fe-MoS2/CMF catalysts can create hot spots on the surface to enhance the local thermal effect, facilitating the lignin vapor reforming.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Biochemistry & Molecular Biology
Fabricia Farias de Menezes, Damaris Batistao Martim, Liu Yi Ling, Aline Tieppo Nogueira Mulato, Elaine Crespim, Juliana Velasco de Castro Oliveira, Carlos Eduardo Driemeier, Priscila Oliveira de Giuseppe, George Jackson de Moraes Rocha
Summary: In this study, the hydrothermal depolymerization of beta-O-4'-rich lignin extracted from sugarcane bagasse was evaluated, showing that the bio-oils produced under different reaction conditions had varying physicochemical properties, with the light bio-oil rich in aromatic monomers promoting bacterial growth.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Multidisciplinary
Xu Du, Andrew W. Tricker, Weisheng Yang, Rui Katahira, Wei Liu, Thomas T. Kwok, Parikshit Gogoi, Yulin Deng
Summary: In this study, a new oxidative catalytic fractionation (OCF) process using polyoxometalate (POM) as the only catalyst was developed to depolymerize lignin to lignin-derived chemicals (LDCs). The process involved methoxylation of lignin followed by heating to convert a significant portion of lignin to LDCs, including a high content of aromatic monomers (45.9%). This provides an efficient and novel method for the utilization of lignin.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Energy & Fuels
Pengcheng Xiu, Xinyu Lu, Dandan Wang, Jiajia Chen, Chaozhong Xu, Xiaoli Gu
Summary: This paper investigates the best Ni-Fe ratio of bimetallic catalysts for the depolymerization of alkaline lignin. The catalysts were prepared by the chemical reduction method and their properties were studied. The results show that the catalyst with a Ni:Fe ratio of 1:1 has the highest yield of bio-oil and phenolic monomers. The catalysts also exhibit high selectivity and stability in the depolymerization process.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Chemical
Carlos A. Vega-Aguilar, Carina Costa, Maria Filomena Barreiro, Alirio E. Rodrigues
Summary: This study investigates the utilization of microwave-assisted reaction for the wet peroxide oxidation of lignins. The results show that the TS-1 catalyst improves the yield of succinic acid from lignins. Additionally, microwave heating enhances the conversion of Lignol lignin to malic acid, making it an attractive method for future valorization.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Analytical
Ningning Zhou, Jie Yang, Xin Lu, Zhong Xin, Chunbao Xu, Quan (Sophia) He
Summary: The amount of formic acid is crucial in influencing product yields. Acidic extraction conditions benefit product recovery and improve product quality.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Energy & Fuels
Shanshuai Chen, Qiqi Lu, Wanying Han, Puxiang Yan, Hongliang Wang, Wanbin Zhu
Summary: This study investigated the effects of key factors on the reductive conversion of oxidized lignin to aromatics, exploring pathways and mechanisms. Under moderate hydrogen pressure with metal-acid catalysts, an advantage in lignin conversion was found. A catalyst with both hydrogenolysis and hydrolysis activity was essential for efficient lignin depolymerization.
Article
Chemistry, Multidisciplinary
W. Arts, K. Van Aelst, E. Cooreman, J. van Aelst, S. van den Bosch, B. F. Sels
Summary: Lignin-first reductive catalytic fractionation (RCF) is a cost-effective and environmentally friendly biorefinery technology. By recycling the reaction liquor and solvent, the process achieves a drastic reduction of costs and CO2 footprint. The results of coupled techno-economic analysis and life cycle assessment show that high liquor recycling leads to lower minimum selling price of the lignin oil and global warming potential.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Masud Rana, Theoneste Nshizirungu, Jeong-Hun Park
Summary: This study investigated the individual and combined effects of microwave (MW) and ultrasound (US) processes on the depolymerization of sulfuric acid hydrolysis lignin (SAHL) in a hybrid reactor. The combined use of MW and US processes resulted in higher yields of bio-oil and monomer production compared to individual use. Optimal conditions were determined through careful parameter selection and statistical analysis, demonstrating the potential of this method for converting lignin into aromatic chemicals. Future work will focus on continuous flow processes under similar optimized conditions.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Multidisciplinary
Patrick O. Saboe, Emily G. Tomashek, Hanna R. Monroe, Stefan J. Haugen, Ryan L. Prestangen, Nick S. Cleveland, Renee M. Happs, Joel Miscall, Kelsey J. Ramirez, Rui Katahira, Eric C. D. Tan, Jipeng Yan, Ning Sun, Gregg T. Beckham, Eric M. Karp
Summary: In this study, a membrane process was developed to fractionate low molecular weight lignin-related compounds from a lignin-rich biorefinery stream. The process showed high rejection of high molecular weight species and high recovery of desired compounds, and a process model was developed to evaluate its energy demand and cost drivers. This method offers a scalable and cost-effective way to fractionate lignin and improve carbon yields in the biorefinery.
Article
Biochemistry & Molecular Biology
Haichuan Zhang, Yang Liu, Shiyu Fu, Yulin Deng
Summary: A liquid-phase hydrogen transfer strategy was developed for the selective hydrodeoxygenation of a non-phenolic lignin model compound under mild conditions. The Pd/CNX catalyst exhibited excellent catalytic performances with high selectivity for 3,4-dimethoxytoluene. This study provides insights into the alcoholysis mechanism supported by dispersion-corrected density functional theory computations.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Multidisciplinary
Thomas Freese, Balint Fridrich, Stefano Crespi, Anouk S. Lubbe, Katalin Barta, Ben L. Feringa
Summary: Lignin, as the largest natural source of functionalized aromatics, holds great potential for synthesis of aromatic products. However, the diversification of these structures and their applications have not been well-studied. In this study, a novel light-driven unidirectional molecular motor was synthesized from a specific aromatic platform chemical derived from lignocellulose. The synthetic path followed the principles of green chemistry and aimed to maintain the intrinsic functionality of the lignin-derived platform molecule.
Article
Engineering, Environmental
Jing Ge, Guanhua Wang, Wenjie Sui, Chuanling Si, Haoran Guo, Yonghao Ni, Jinguang Hu
Summary: This study demonstrates a highly efficient acid-assisted reductive fractionation of lignocellulose using a cobalt monatomic catalyst. The process achieves high monophenol yield and complete delignification under mild conditions, while simultaneously releasing xylan and leaving a cellulose-rich solid fraction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Pengfei Jia, Juan Wang, Weiliang Zhang
Summary: The catalytic hydrothermal liquefaction of lignin using different metal supported on carbon nanotube showed that bio-oil yield significantly increased under alcoholic solvents compared to water. As the reaction temperature increased, there was an increase in lignin conversion, with the highest bio-oil yield found with 10% Co/CNT catalyst using an ethanol solvent system at 280 degrees C.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
Article
Agricultural Engineering
Bochao Yan, Xiaoyu Lin, Zhihui Chen, Qinjie Cai, Suping Zhang
Summary: A non-precious carbon-based metal-Mo2C catalytic system has been developed for the selective production of phenolic monomers from organosolv lignin depolymerization. The optimized Ni-Fe-Mo2C catalyst achieved high liquefaction and phenolic monomer yields in a water-methanol solvent. The results demonstrate the potential of the Ni-Fe-Mo2C catalytic system for valuable phenolic monomer production from lignin under mild conditions.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Khatiya Weerasai, Navadol Laosiripojana, Saksit Imman, Torpong Kreetachat, Nopparat Suriyachai
Summary: An alternative sodium methoxide in methanol medium was investigated for the pretreatment of bagasse. The use of sodium methoxide as an alkaline promoter resulted in high delignification efficiency and solid glucan recovery. The modified pretreatment process helps improve enzymatic hydrolysis for sugar production.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Energy & Fuels
Wanichaya Praikaew, Worapon Kiatkittipong, Farid Aiouache, Vesna Najdanovic-Visak, Mutsee Termtanun, Jun Wei Lim, Su Shiung Lam, Kunlanan Kiatkittipong, Navadol Laosiripojana, Sunya Boonyasuwat, Suttichai Assabumrungrat
Summary: Glycerol carbonate (GC) was successfully synthesized using calcium oxide (CaO) derived from eggshell as a catalyst in transesterification reaction. The catalyst showed deteriorated performance upon recycling due to phase transformation to CaCO3, resulting in decreased catalytic activity. The mechanism of CaO catalyzed transesterification and catalyst deactivation were proposed and demonstrated.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Chemical
Sansanee Totong, Weerawan Laosiripojana, Navadol Laosiripojana, Pornlada Daorattanachai
Summary: In this study, the oxidative depolymerization of fractionated bagasse lignin into small phenolic compounds was successfully achieved using graphene oxide and metal oxides as catalysts. Among the catalysts tested, NiO-Re2O7/GO showed the best performance with high phenolic yield and potential for recycling. This work provides a promising catalyst for oxidative lignin depolymerization and utilization.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Chitchanok Areepak, Thitirat Jiradechakorn, Santi Chuetor, Chantaraporn Phalakornkule, Malinee Sriariyanun, Marisa Raita, Verawat Champreda, Navadol Laosiripojana
Summary: This study developed a combined alkaline-mechanical fractionation method for rice straw pretreatment. The experimental results showed that this method effectively increased fermentable sugar yields with high energy efficiency and low waste generation, making it a promising sustainable and eco-friendly pretreatment technology.
Article
Polymer Science
Guohu Zhang, Ahmed F. M. EL-Mahdy, Lamiaa Reda Ahmed, Babasaheb M. Matsagar, Sameerah Al-Saeedi, Shiao-Wei Kuo, Kevin C. -W. Wu
Summary: A new porphyrin-functionalized benzoxazine (Por-BZ) with high purity and yield was synthesized in this study. The thermal properties of the polymerization product showed that Por-BZ required a higher temperature for ring-opening polymerization (ROP) due to the presence of the porphyrin moiety. Insertion of Ni and Zn ions decreased the ROP temperature and improved the thermal stability of the complexes.
Article
Biochemistry & Molecular Biology
Aphinan Saengsrichan, Chaiwat Saikate, Peeranut Silasana, Pongtanawat Khemthong, Wanwitoo Wanmolee, Jakkapop Phanthasri, Saran Youngjan, Pattaraporn Posoknistakul, Sakhon Ratchahat, Navadol Laosiripojana, Kevin C-W Wu, Chularat Sakdaronnarong
Summary: This study focuses on enhancing the value of palm empty fruit bunches as a precursor for the synthesis of luminescent carbon dots, and demonstrates the high selectivity of PTS-CDs in detecting Fe3+ with significant PL properties, showing promising applications in various fields.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Green & Sustainable Science & Technology
Pimpajee Sangsiri, Navadol Laosiripojana, Pornlada Daorattanachai
Summary: This study introduces a new acid, methanesulfonic acid, for esterification, and investigates the catalyst performance based on different lignin sources and sulfonic acid types. The results show that carbon materials prepared from EL exhibit better catalytic activity, and methanesulfonic acid-functionalized catalysts outperform sulfuric acid-functionalized ones. The optimal conditions achieve a methyl stearate yield of 89.2% in the esterification reaction.
Article
Engineering, Environmental
Rahul Patil, Nitish Kumar, Sudip Bhattacharjee, Hsi-Yen Wu, Po-Chun Han, Babasaheb M. Matsagar, Kevin C. W. Wu, Rahul R. Salunkhe, Asim Bhaumik, Saikat Dutta
Summary: Enzyme encapsulated ZIFs demonstrate the presence of metallic Co-sites with a metallic valance state, supported by high-resolution transmission electron microscopy and synchrotron X-ray absorption fine structure (XAFS) spectrogram. The activity of cat@ZIF-67-NC is higher in CO2-cycloaddition-polymerization but weaker in capacitance compared to ZIF-67-NC in 3-electrode supercapacitor applications. XPS and EXAFS analysis confirm the influence of encapsulated catalase in ZIF-67 on the contrasting nature of cat-ZIF-67-NC and ZIF-67-NC in supercapacitor and CO2 cycloaddition-polymerization. Metallic Co-sites play a significant role in the supercapacitor and CO2-cycloaddition-polymerization processes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Xiao-Yan Huang, Tian-Jie Ao, Xue Zhang, Kai Li, Xin-Qing Zhao, Verawat Champreda, Weerawat Runguphan, Chularat Sakdaronnarong, Chen-Guang Liu, Feng-Wu Bai
Summary: Building accurate machine learning models can promote biorefinery. This study proposed a strategy to enhance the generalization ability of models and overcome data insufficiency for mixed sugar fermentation simulation. By using multiple inputs single output models and consensus yeast model, the accuracy of the models can be improved.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Mohd Jahir Khan, Zoheb Karim, Boonya Charnnok, Thiprada Poonsawat, Pattaraporn Posoknistakul, Navadol Laosiripojana, Kevin C. -W. Wu, Chularat Sakdaronnarong
Summary: This study explored the utilization of composite membranes made from post-consumer cotton fabrics and palm waste for wastewater treatment. Cellulose nanofibers were produced from waste cotton fabrics and filter paper, and the characteristics of the membranes were analyzed. The membrane made from palm waste had the highest dye removal efficiency, reaching 23% for Congo red and 44% for methylene blue.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Shang-Tien Tsai, Wei-Cheng Tang, Yeu-Kuen Wei, Kevin C. -W. Wu
Summary: The Ag(I) ion-containing ZIF-8 samples were synthesized using both the one-stage de novo synthesis method and impregnation method. Through de novo synthesis, Ag(I) ions could be located inside the micropores or adsorbed on the external surface of ZIF-8. The confinement effect of ZIF-8's micropore led to a much lower constant releasing rate of Ag(I) ions compared to those adsorbed on the external surface, which showed diffusion limitation.
Article
Materials Science, Multidisciplinary
Siriboon Supajaruwong, Sirawich Porahong, Agung Wibowo, Yu-Sheng Yu, Mohd Jahir Khan, Pisut Pongchaikul, Pattaraporn Posoknistakul, Navadol Laosiripojana, Kevin C. -W. Wu, Chularat Sakdaronnarong
Summary: Carbon dots (CDs) are a new class of nanomaterials with high biocompatibility and tunable fluorescence. This study increased the production capacity of CDs through a continuous flow reactor system and found that CDs synthesized from sucrose precursor exhibited the highest quantum yield and average diameter.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Sataporn Malarat, Dilawin Khongpun, Kanokkorn Limtong, Napasin Sinthuwong, Pornpinun Soontornapaluk, Chularat Sakdaronnarong, Pattaraporn Posoknistakul
Summary: This research investigated the value-added potential of coffee pulp fiber as a reinforcement in composite materials. Nanocellulose coffee pulp (NCP) was prepared from coffee pulp (CP) and used as a filler in a polyvinyl alcohol (PVA) matrix to improve the properties of PVA composites. The presence of NCP in the PVA matrix improved the physical properties of the nanocomposite film.
Article
Chemistry, Physical
Rahul Patil, Lingaraj Pradhan, Babasaheb M. Matsagar, Omnarayan Agrawal, Kevin C. -W. Wu, Bikash Kumar Jena, Saikat Dutta
Summary: This paper presents a strategy to enhance the intrinsic activity of electrodes by optimizing multimetallic heterostructures. A multiwalled nanotube-like structure with predominantly nickel and cobalt centers was successfully synthesized. The resulting material exhibited outstanding specific capacitance and energy density, making it promising for future energy storage applications.