Article
Biotechnology & Applied Microbiology
Jeyashelly Andas, Siti Hajar Ekhbal, Tammar Hussein Ali
Summary: This study successfully prepared MCM-41 and modified MCM-41 from silica extracted from rice husk ash, and characterized the materials through various analytical techniques. Ni-MCM-41 showed higher catalytic activity with benzaldehyde as the sole product, while MCM-41 produced benzaldehyde and styrene oxide.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Food Science & Technology
Ya'nan Li, Ren Wang, Xiaohu Luo, Zhengxing Chen, Li Wang, Yunyu Zhou, Weizhi Liu, Miaomiao Cheng, Chen Zhang
Summary: This study focuses on the synthesis of rice husk-based mesoporous silica (MCM-41) for the removal of aflatoxin B-1 (AFB(1)) from peanut oil. The results show that MCM-41 has high specific surface area and good adsorption performance. This study provides important insights with economic value.
Article
Environmental Sciences
Zhaoying Li, Zhaoping Zhong, Bo Zhang, Wei Wang, Hao Zhao, Gabriel V. S. Seufitelli, Fernando L. P. Resende
Summary: This paper investigates the microwave-assisted catalytic fast pyrolysis of rice husk using a hierarchical catalyst, which proves effective in reducing coke agglomeration and increasing hydrocarbon yields. The study highlights the importance of catalyst composition and digestion temperature in influencing the overall performance of the process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Artita Na Rungsi, Thuong Hai Truong, Chachchaya Thunyaratchatanon, Apanee Luengnaruemitchai, Nuwong Chollacoop, Shih-Yuan Chen, Takehisa Mochizuki, Hideyuki Takagi, Yuji Yoshimura
Summary: The study investigated the partial hydrogenation of soybean oil-derived fatty acid methyl esters using MCM-41 mesoporous silica-supported Pd-Pt bimetallic catalysts, resulting in the production of H-FAME enriched in mono-FAME as a potential source for high blends of biodiesel fuel. Various MCM-41 supports with different structural properties and morphologies were synthesized using different amounts of ammonia solution, leading to a series of Pd-Pt/MCM-41 bimetallic catalysts with tunable porosity.
Article
Chemistry, Multidisciplinary
Maddila Anil Kumar, Parasuraman Selvam
Summary: In this study, a highly ordered hexagonal mesoporous iron phosphate material HMI-41 was successfully synthesized using an imidazolium-based ionic liquid as a structure directing agent. The HMI-41 catalyst showed excellent performance in acid medium for phenol hydroxylation, achieving high selectivity and conversion rates with a hydroquinone-to-catechol ratio that is the highest ever reported.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Engineering, Chemical
Shivali Arora, Vijayalakshmi Gosu, Verraboina Subbaramaiah, Tian C. Zhang
Summary: The rice husk-derived MCM-41 catalyst incorporated with 5 wt.% cobalt showed a higher GLc yield of 60.2% due to its optimal basicity. By adjusting conditions, a high GLy conversion rate of 98.7% and GLc yield of 94.1% were achieved in the batch reactor with the transesterification reaction taking place at 90 degrees C for 2 hours.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Franklin J. Mendez, Roylena Vargas, Joel Blanco, Yahse Rojas-Challa, Ernesto Bastardo-Gonzalez, Jorge A. Garcia-Macedo, Esneyder Puello-Polo, Joaquin L. Brito
Summary: The study investigated the reactivity of Ti-modified MCM-41-supported NiMo and CoMo catalysts, showing that the incorporation of Ti can enhance the activity and selectivity of the catalysts, potentially beneficial for destabilizing sulfur-containing molecules.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Andrea Mussio, Maila Danielis, Nuria J. Divins, Jordi Llorca, Sara Colussi, Alessandro Trovarelli
Summary: Bimetallic Pt-Pd catalysts supported on ceria show improved performance in wet conditions, possibly due to the formation of unique mushroom-like structures resulting from the alloying of Pt and Pd. Catalyst prepared by milling Pd metal and ceria first, followed by the addition of Pt, exhibits better performance compared to conventional impregnated samples.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Aleksandra Jankowska, Andrzej Kowalczyk, Malgorzata Rutkowska, Marek Michalik, Lucjan Chmielarz
Summary: Mesoporous silica material of MCM-41 type with spherical morphology was modified with copper, iron, or manganese as well as combinations of these metals. The modified samples were characterized for their structure, morphology, surface acidity, transition metal loadings, and reducibility. The catalytic performance of monometallic and bimetallic samples in the selective catalytic reduction of NO with ammonia was tested, and the bimetallic copper-manganese sample showed the best catalytic activity. The synergistic cooperation between manganese and copper species may be attributed to charge relocation, resulting in improved activation of the catalyst for the desired reaction.
Article
Chemistry, Applied
J. C. Bedoya, R. Valdez, L. Cota, M. A. Alvarez-Amparan, A. Olivas
Summary: In this study, mesoporous Al-MCM-41 nanospheres with variable sizes were successfully synthesized and characterized, showing hexagonal and mesoporous structure with the successful incorporation of Al ions. The smaller nanospheres exhibited more medium acidic sites on the surface. All samples displayed good selectivity towards DME, with the smallest nanospheres achieving 78% DME yield at 300 degrees C. The stability test revealed high DME yield (>60%) maintained during a 48-hour time-on-stream, indicating the potential for material recycling.
Article
Environmental Sciences
Manzhi Li, Jiahui Xiao, Zhi Zeng, Taiping Zhang, Yuan Ren
Summary: Immobilized microbial technology is a sustainable solution for reducing water pollution. A. faecalis immobilized on rice husk biochar effectively removes phenol contaminants. Increasing the pyrolysis temperature of rice husk biochar enhances its adsorption capacity for phenol. The formation of a biofilm on the biochar, facilitated by increased cycling, accelerates the degradation of phenol.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Peng Zhai, Zhenhua Xie, Erwei Huang, Divakar R. Aireddy, Haoran Yu, David A. Cullen, Ping Liu, Jingguang G. Chen, Kunlun Ding
Summary: Research has found that Pt-M (M = Sn/In/Zn) bimetallic catalysts on non-redox-active silica support can break the equilibrium limit of direct propane dehydrogenation using CO2 as a co-reactant.
Article
Nanoscience & Nanotechnology
Emad Al-Dhubhani, Michele Tedesco, Wiebe M. de Vos, Michel Saakes
Summary: Electrospinning combined with electrospraying can produce efficient bipolar membranes (BPMs) with enhanced water dissociation performance by introducing MCM-41 as a catalyst, which is of great significance for fuel cell and flow battery applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Environmental Sciences
Paola M. Carraro, Tamara B. Benzaquen, Griselda A. Eimer
Summary: A study successfully synthesized nanostructured mesoporous materials using silica from rice husk, modified with iron loading, to create Fe/MCM-RHA composites with excellent photocatalytic performance for degrading endocrine-disrupting chemicals. The presence of finely dispersed iron species on the silica structure, specifically the Fe(3+) ions, played a key role in the high catalytic efficiency observed during the photo-Fenton degradation process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Xu Zhang, Tao Du
Summary: In this study, different types of MCM-41 synthesized from rice husk ash were tested as polyethyleneimine (PEI) supports for CO2 capture. The effects of various factors on the adsorption performance were examined. Results showed that PM41 had superior adsorption capacity and rate compared to M41, and PM41Ax further enhanced the adsorption performance. Additionally, the presence of water vapor increased the adsorption capacity.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
Andreas G. Thome, Frank Schroeter, Patrick Bottke, Jatuporn Wittayakun, Frank Roessner
MICROPOROUS AND MESOPOROUS MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Chalermpan Keawkumay, Wina Rongchapo, Narongrit Sosa, Suwit Suthirakun, Iskra Z. Koleva, Hristiyan A. Aleksandrov, Georgi N. Vayssilov, Jatuporn Wittayakun
MATERIALS CHEMISTRY AND PHYSICS
(2019)
Article
Chemistry, Applied
Mustika Ruangudomsakul, Nattawut Osakoo, Chalermpan Keawkumay, Chaiwat Kongmanklang, Teera Butburee, Sirapassorn Kiatphuengporn, Kajornsak Faungnawakij, Narong Chanlek, Jatuporn Wittayakun, Pongtanawat Khemthong
Summary: In this study, it was found that the carbon-oxygen ratio of activated carbon derived from wood affects its hydrophobicity, which in turn influences the catalytic performance of nickel phosphide for hydrodeoxygenation of palm oil. The AC derived from Lead tree wood charcoal prepared in Iwasaki kiln showed superior performance compared to that prepared in a tube furnace, with a green diesel yield of 98.3%. The dispersion of Ni2P nanoparticles, as well as the acid properties of the AC, play important roles in the catalytic activity of the system.
Article
Materials Science, Multidisciplinary
Komsan Bunmai, Nattawut Osakoo, Krittanun Deekamwong, Chanokporn Kosri, Pongtanawat Khemthong, Jatuporn Wittayakun
Article
Materials Science, Multidisciplinary
Nawee Jantarit, Pimwipa Tayraukham, Nattawut Osakoo, Karin Foettinger, Jatuporn Wittayakun
MATERIALS RESEARCH EXPRESS
(2020)
Article
Energy & Fuels
Nakarin Duangkaew, Nanthachat Suparee, Pakpoom Athikaphan, Arthit Neramittagapong, Sutasinee Neramittagapong
Article
Energy & Fuels
Imran Rosadi, Pakpoom Athikaphan, Phatchareephon Chantanachat, Arthit Neramittagapong, Sutasinee Neramittagapong
Article
Energy & Fuels
Pakpoom Athikaphan, Sutasinee Neramittagapong, Pornsawan Assawasaengrat, Arthit Neramittagapong
Article
Chemistry, Multidisciplinary
Siriporn Kosawatthanakun, Chaianun Pansakdanon, Narongrit Sosa, Narong Chanlek, Frank Roessner, Sanchai Prayoonpokarach, Jatuporn Wittayakun
Summary: This study aims to compare the physicochemical properties and catalytic performance of potassium supported on zeolite NaX and NaY prepared by ultrasound-assisted impregnation. The results showed that K/NaX is more stable and active compared to K/NaY, especially in the decomposition of MBOH.
Article
Chemistry, Inorganic & Nuclear
Siriporn Kosawatthanakun, Edwin B. Clatworthy, Sajjad Ghojavand, Narongrit Sosa, Jatuporn Wittayakun, Svetlana Mintova
Summary: This study investigates the morphology and size effect of catalysts on the conversion of glycerol to glycerol carbonate. Nano-sized CsBPH_AP catalysts show superior performance compared to micron-sized KBPH_AP. Ion-exchange of the catalysts leads to different basicity and catalytic activity. The study highlights the importance of catalyst morphology and size in the valorization of glycerol.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Multidisciplinary Sciences
Pongsert Sriprom, Sutasinee Neramittagapong, Chitsan Lin, Arthit Neramittagapong, Pornsawan Assawasaengrat
Summary: In this study, Cu-BG-MCM-41 was used as a catalyst for lignin degradation through a Fenton-like oxidation reaction. The optimal operating conditions were determined by experimental design and response surface methodology, resulting in a 95% degradation of lignin. Additionally, the reaction yielded high-value intermediate products, such as vanillin.
Article
Engineering, Environmental
Ekkachai Kanchanatip, Pradabduang Kiattisaksiri, Arthit Neramittagapong
Summary: This study investigated the treatment of liquid effluent from hydrothermal carbonization of macadamia nut shell using Cu, Ni, and Fe doped titanium dioxide photocatalysts. The results showed that Fe doped TiO2 exhibited the highest photocatalytic activity, followed by Cu and Ni. Fe doped anatase TiO2 achieved the highest removal rates of TOC and COD, with concentrations reduced to 405.62 mg/L and 91.26 mg/L, respectively. These findings suggest that photocatalytic degradation could be a potential treatment for HTC liquid effluent before it is released into the environment.
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
(2023)
Article
Polymer Science
Preeyaporn Injorhor, Tatiya Trongsatitkul, Jatuporn Wittayakun, Chaiwat Ruksakulpiwat, Yupaporn Ruksakulpiwat
Summary: Biodegradable polymers have important applications in medicine, particularly in internal devices, due to their ability to be broken down and absorbed into the body without producing harmful degradation products. In this study, biodegradable polylactic acid (PLA)-polyhydroxyalkanoate (PHA)-based nanocomposites with various PHA and nano-hydroxyapatite (nHAp) contents were prepared using solution casting method. The mechanical properties, microstructure, thermal stability, thermal properties, and in vitro degradation of the PLA-PHA-based composites were investigated. PLA-20PHA/5nHAp showed the desired properties and was successfully fabricated into fibers using electrospinning.
Article
Polymer Science
Namthip Bureewong, Preeyaporn Injorhor, Saifa Krasaekun, Pawida Munchan, Oatsaraphan Waengdongbang, Jatuporn Wittayakun, Chaiwat Ruksakulpiwat, Yupaporn Ruksakulpiwat
Summary: This study aims to improve the mechanical properties, oil resistance, and thermal properties of NBR by using Nile tilapia fish scales as a filler and TESPT as a coupling agent. The addition of FSp at 10 phr increased the tensile strength by 180%, reduced oil absorption by 155%, and increased the decomposition temperature by 4 degrees C. The addition of CA further enhanced the tensile strength and elongation at break of the filled NBR with FSp at 10 phr. The prepared FSp from Nile tilapia fish scales can be used as a reinforcement filler to enhance the NBR properties for high-performance applications.
Article
Chemistry, Physical
Pakawan Sereerattanakorn, Pimwipa Tayraukham, Nattawut Osakoo, Panot Krukkratoke, Chalermpan Keawkumay, Jatuporn Wittayakun, Nichakorn Pornnongsan, Krittanun Deekamwong, Sanchai Prayoonpokarach
Summary: Adding cogon grass to the synthesis gel can prevent agglomeration of zeolite NaY and improve its crystallinity and surface area. The optimum amount of grass to add is 1 gram.
