Review
Energy & Fuels
Najaa Rozulan, Siti Atikah Halim, Nurul Razali, Su Shiung Lam
Summary: Concerns about global warming and energy demand have driven the interest in and action to produce biodiesel as a substitute for fossil fuels. However, the increase in biodiesel production results in the generation of glycerol waste. Utilizing and upgrading this waste can reduce waste volume and increase the market value of glycerol and the sustainability of biodiesel production. This review focuses on the carboxylation of glycerol waste to produce glycerol carbonate (GC) and discusses the impact of catalysts, dehydrating agents, solvents, and other reaction conditions on the conversion and selectivity of glycerol to GC. The use and applications of GC are also reviewed.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Biotechnology & Applied Microbiology
Katrina Wruck, Graeme J. Millar, Tony Wang
Summary: This study revealed that fusion activation of natural zeolites improved the robustness of the synthesis process and opened up new avenues for green zeolite formation. Future studies should focus on reducing the activation costs by lowering activation temperature and sodium hydroxide consumption.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Do Trung Hieu, Hendrik Kosslick, Muhammad Riaz, Axel Schulz, Armin Springer, Marcus Frank, Christian Jaeger, Nguyen Thi Minh Thu, Le Thanh Son
Summary: This study prepared acidic HCLIN catalysts by ion exchange and calcination using natural zeolite clinoptilolite as a starting material. The catalysts showed good catalytic performance in the etherification of glycerol.
Article
Environmental Sciences
Thaisa Frossard Coslop, Ramiro Picoli Nippes, Rosangela Bergamasco, Mara Heloisa Neves Olsen Scaliante
Summary: Diazepam has been detected in water sources globally, impacting the quality of drinking water, prompting the search for effective removal methods. Using natural clinoptilolite zeolite as an adsorbent offers a cheap and eco-friendly solution to remove this drug from water. Experimental results demonstrate the significant potential of zeolite for adsorbing diazepam in water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Vikas Yadav, Lalit Kumar, Neha Saini, Meenakshi Yadav, Nahar Singh, Vajjiravel Murugasen, Ezhilselvi Varathan
Summary: This study aims to evaluate the efficiency of ca-form natural clinoptilolite zeolite in ammonia removal. The results show that the removal efficiency of clinoptilolite zeolite in ammonia ions is 76.48% in the batch study. The adsorption process is best described by the pseudo-second-order and Freundlich models, and it is endothermic.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Chemistry, Multidisciplinary
Nooshin Mortazavi, Mehrnaz Bahadori, Afsaneh Marandi, Shahram Tangestaninejad, Majid Moghadam, Valiollah Mirkhani, Iraj Mohammadpoor-Baltork
Summary: The modification of natural zeolite clinoptilolite through simple methods significantly enhances its CO2 adsorption capacity. Different modifiers, including cation exchange, amine modification, and ionic liquid modification, were found to improve CO2 adsorption, with clinoptilolite/Li+, clinoptilolite/2% MEA, and clinoptilolite/5% [bmim]PF6 showing the highest enhancements at 4 bar CO2 pressure.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Chemistry, Applied
Cheng Wang, Jiale Yu, Kai Feng, Lipeng Wang, Jianfeng Huang
Summary: The study found that the porous magnetic zeolite-based material, utilizing porous silica-coated magnetic particles as a carrier, exhibited excellent Cd2+ ion and methylene blue removal performance compared to the raw natural clinoptilolite zeolite.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Thermodynamics
Yasemin Akgun, Talha Yilmaz
Summary: The study aimed to achieve synergy with positive properties of zeolites in terms of thermal performance and pozzolanic admixture. Analcime and clinoptilolite were used as pozzolanic replacement materials for blended cements, with both showing similar properties in terms of thermal performance and strength. Analcime may be considered as an alternative pozzolanic additive to commonly used clinoptilolite.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Biochemistry & Molecular Biology
Zhangxi Gao, Mei Xiang, Mingyang He, Weiyou Zhou, Jiayao Chen, Jiamin Lu, Zeying Wu, Yaqiong Su
Summary: Catalytic conversion of CO2 and surplus glycerol to synthesize glycerol carbonate (GC) was achieved using titanosilicate ETS-10 zeolite-based catalysts with active metal species introduced by impregnation. The Co/ETS-10 catalyst showed the highest glycerol conversion rate and GC yield. The presence of moderate basic sites for CO2 adsorption-activation and appropriate interaction between cobalt species and ETS-10 zeolite were crucial for the catalytic activity.
Article
Materials Science, Multidisciplinary
Hamed Ehteshamnia, Hassan Koohestani, Manoochehr Sobhani
Summary: This study aims to produce cerium oxide-zeolite nanocomposites and investigate their properties and hydrogen adsorption values. Cerium oxide nanoparticles were synthesized and deposited on natural zeolite particles to prepare zeolite/ceria nanocomposites with different percentages of ceria content. The results showed that the deposition of ceria nanoparticles increased the specific surface area and the best hydrogen adsorption efficiency was found in the 15% ceria nanocomposites.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Geochemistry & Geophysics
Ewelina Pabis-Mazgaj, Tomasz Gawenda, Pawel Pichniarczyk, Agata Stempkowska
Summary: Clinoptilolite is a valuable zeolite mineral with wide applications, mainly found in sedimentary rocks in Poland and volcanic tuffs in Slovakia and Ukraine. Research shows that these minerals could be suitable raw materials for sorbents of petroleum compounds.
Article
Chemistry, Applied
Araya Chotchuang, Pawitra Kunsuk, Amornpun Phanpitakkul, Sarun Chanklang, Metta Chareonpanich, Anusorn Seubsai
Summary: This study investigated the production of glycerol carbonate using modified sodium aluminate catalysts. The results showed that the catalyst modified with calcium oxide and glycerol as a template produced the most active catalyst. By optimizing the operational parameters, a high yield of glycerol carbonate was achieved.
Article
Engineering, Chemical
Marin Ugrina, Martin Gabersek, Aleksandra Dakovic, Ivona Nuic
Summary: Sulfur-impregnated zeolite was successfully obtained by chemical modification of natural zeolite clinoptilolite with Na2S, which enhanced the sorption of Hg(II) from aqueous solutions. The impregnation increased basicity and negative surface charge, decreased specific surface area and crystallinity, and showed optimal sorption capacity under acidic conditions.
Article
Chemistry, Multidisciplinary
Margherita Cavallo, Melodj Dosa, Natale G. Porcaro, Francesca Bonino, Marco Piumetti, Valentina Crocella
Summary: The CO2 adsorption performances of Linde-Type A (LTA) and natural Clinoptilolite (Clino) zeolites were investigated and compared. The ion-exchange procedure enhanced the adsorption capacity of the synthetic zeolite, while no significant improvement was observed for the natural one. Both synthetic and natural zeolites were affected by the cation exchange process in terms of CO2 adsorption reversibility. Natural Clino showed interesting CO2 adsorption performances at medium-high temperature and proved the presence of Fe2+ ions responsible for its strong interaction with CO2. The low cost and availability in shaped form make natural Clino a promising material for real CCS technologies.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Veterinary Sciences
Tomislav Speranda, Valentina Pavic, Zdenko Loncaric, Marcela Speranda, Maja Popovic, Vesna Gantner, Mislav Didara
Summary: The study demonstrates that supplementing slightly higher levels of organic selenium, combined with natural zeolite, can increase selenium deposition in tissues of growing pigs, enhance antioxidant status, and strengthen the immune system.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Review
Energy & Fuels
Oki Muraza
Summary: Sustainable energy and fuels for personal vehicles are becoming increasingly important. Transitioning from gasoline to biomass-derived liquid fuels, then to compressed natural gas, hydrogen fuel, and electric vehicles has been key in minimizing carbon pollution. Challenges remain in each generation of fuels, requiring better catalysts and energy storage materials.
Article
Engineering, Chemical
Galal A. Nasser, Ali A. Al-Qadri, Anas Karrar Jamil, Idris A. Bakare, Mohammed A. Sanhoob, Oki Muraza, Zain H. Yamani, Toshiyuki Yokoi, Qasim Saleem, Donya Alsewdan
Summary: The study investigated a series of chabazite-based catalysts that facilitate the methanol to olefins reaction, comparing the effects of different treatment methods on their reaction performance. The results showed that the catalyst modified by steam and acid treatment exhibited better stability in the MTO process.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Review
Engineering, Chemical
Hilman Ibnu Mahdi, Alireza Bazargan, Gordon McKay, Nur Izyan Wan Azelee, Lucas Meili
Summary: Global consumption of fossil fuel energy is predicted to rise, leading to environmental pollution and resource depletion. Green diesel, with abundant raw materials, non-polluting production, and cost-effectiveness, is a potential substitute for petroleum-based diesel.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Review
Chemistry, Applied
Ahmad Galadima, Ahmad Masudi, Oki Muraza
Summary: This paper evaluates the potential of cellulose-to-glucose reaction and transformation into fuels/chemicals, and analyzes the roles of catalysts such as ionic liquids, sulfonated mesoporous carbon systems, and Fe-modified zeolites in the process. It also discusses the parameters and catalyst-stability challenges of the upgrading process, and provides new directions for further research.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Ali. A. Al-Qadri, Galal A. Nasser, Ahmad Galadima, Oki Muraza
Summary: Liquified petroleum gas (LPG) is widely used due to its high heating value and clean combustibility. The synthesis of LPG from syngas can be achieved through direct, indirect, or semi-direct methods. Factors affecting the process performance include reaction temperature and pressure. The catalyst, particularly the type of zeolite used, plays a crucial role in the process.
Article
Chemistry, Multidisciplinary
Mohammed A. Sanhoob, Emad N. Shafei, Abuzar Khan, Galal A. Nasser, Idris Bakare, Oki Muraza, Mohammed Z. Al-Bahar, Ali N. Al-Jishi, Hameed H. Al-Badairy, Aniz C. Ummer
Summary: This study focuses on tuning the synthesis conditions of MFI zeolites to improve catalytic properties by optimizing mesoporosity, the balance between Bronsted and Lewis sites, and zeolite particle sizes. Different silicon sources and synthesis temperatures have significant effects on the structure and functionality of MFI zeolites, which in turn impact the shape selectivity of catalytic cracking reactions.
Article
Agricultural Engineering
Sangeetha Veeramalai, Nurfadhila Nasya Ramlee, Hilman Ibnu Mahdi, Nor Hasmaliana Abdul Manas, Aizi Nor Mazila Ramli, Rosli Md Illias, Nur Izyan Wan Azelee
Summary: The transformation of pineapple waste into biochar and activated carbon for enzyme immobilization and dye adsorption shows great potential for waste treatment.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Retno S. D. Jayanudin, Retno S. D. Lestari, Dhena Ria Barleany, Alia Badra Pitaloka, Meri Yulvianti, Dimas Prasetyo, Dendy Vito Anggoro, Adam Ruhiatna
Summary: This study investigated the use of superabsorbents to improve sandy soil for agricultural purposes. The results showed that increasing the concentration of chitosan can enhance the performance of gels but decrease water retention in sandy soils.
Review
Chemistry, Physical
Hilman Ibnu Mahdi, Nurfadhila Nasya Ramlee, Danilo Henrique da Silva Santos, Dimitrios A. Giannakoudakis, Leonardo Hadlich de Oliveira, Rangabhashiyam Selvasembian, Nur Izyan Wan Azelee, Alireza Bazargan, Lucas Meili
Summary: Despite its toxicity, formaldehyde is in high demand worldwide due to its applications in the synthesis of important chemicals. Silver and iron molybdenum oxide catalysts are commonly used due to their efficiency and stability. This review focuses on decreasing methanol consumption and using natural zeolites as renewable and cost-efficient catalysts.
MOLECULAR CATALYSIS
(2023)
Review
Environmental Sciences
Hilman Ibnu Mahdi, Nurfadhila Nasya Ramlee, Jose Leandro Da Silva Duarte, Yu-Shen Cheng, Rangabhashiyam Selvasembian, Faisal Amir, Leonardo Hadlich De Olivera, Nur Izyan Wan Azelee, Lucas Meili, Gayathri Rangasamy
Summary: Biodiesel is a potential alternative to fossil-derived diesel, offering similar properties and environmental benefits. Conventional catalysts used in biodiesel production often face deactivation issues, but heterogeneous nanocatalysts and nanobiocatalysts have shown promise with higher activity and recyclability. However, challenges still remain in terms of stability, recyclability, and scalability, and this study aims to review and analyze current modifications and the role of nanocatalysts and nanobiocatalysts in biodiesel production.
Article
Energy & Fuels
Nur Izyan Wan Azelee, Hilman Ibnu Mahdi, Yu-Shen Cheng, Norhafiza Nordin, Rosli Md Illias, Roshanida A. Rahman, Shalyda Md Shaarani, Pankaj Bhatt, Sudesh Yadav, Soon Woong Chang, Balasubramani Ravindran, Veeramuthu Ashokkumar
Summary: This article discusses the most effective methods for extracting and fractionating hemicellulose from complex lignocellulosic biomass. It addresses the challenges and problems in hemicellulose separation, and examines the impact of heterogeneous biomass types, cultivation and harvesting times, accessible surface areas, and functional groups on purity. The article also provides several efficient strategies for hemicellulose extraction and fractionation, with biological pre-treatment using enzymes and bacteria being highlighted as the most effective method.
Article
Chemistry, Multidisciplinary
Emad N. Shafei, Ahmad Masudi, Zain H. Yamani, Oki Muraza
Summary: Nanozeolite-Y was modified using different methods and the effects on the zeolite acid sites were analyzed. It was found that the modification methods caused changes in the acidity of the zeolite, altering the acid sites. Additionally, the catalytic evaluation revealed that the evolution and product transformation of nanozeolite-Y led to catalyst deactivation.
Article
Chemistry, Applied
Jayanudin, Indar Kustiningsih, Retno S. D. Lestari, Rozak Bahaudin, Dandi Irwanto
Summary: The purpose of this study was to determine the release kinetics and diffusion coefficient of chitosan microspheres containing urea based on changes in the stirring speed and the volume ratio of the continuous to dispersed phase. The appropriate release kinetics model was found to be Simple Power Law with the Burst Effect, and the mechanism of urea release from chitosan microspheres was determined to be Case II.
BIOINTERFACE RESEARCH IN APPLIED CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Jayanudin, Mohammad Fahrurrozi, Sang Kompiang Wirawan, Rochmadi Rochmadi
Summary: In this study, chitosan microcapsules containing red ginger oleoresin were successfully prepared using the emulsion cross-linking technique with TPP as a cross-linking agent. The study evaluated the impact of chitosan and TPP concentration, as well as pH, on the properties of the microcapsules, and examined their antioxidant activity. Despite non-smooth surfaces, the microcapsules showed promise for encapsulating red ginger oleoresin.
CHEMISTRY & CHEMICAL TECHNOLOGY
(2021)
Article
Engineering, Environmental
Emad N. Al-Shafei, D. Robert Brown, Sai P. Katikaneni, Hameed Al-Badairy, Oki Muraza
Summary: The study investigated propane dehydrogenation assisted by CO2 using zirconia and titania catalysts. The increase of CO2 ratio led to higher propylene selectivity, while increasing the CO/H-2 ratio was important for olefins yield and catalytic stability. The presence of CO2 played an important role in enhancing propane dehydrogenation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
