Article
Environmental Sciences
Arson Edberg anak Erison, Yie Hua Tan, N. M. Mubarak, Jibrail Kansedo, Mohammad Khalid, Mohammad Omar Abdullah, Mostafa Ghasemi
Summary: Biodiesel, as a renewable and environmentally friendly option, faces current issues that hinder its development, with the utilization of impregnated magnetic biochar derived from waste PKS catalyst showing potential to reduce environmental impacts. Further research on life cycle cost and sensitivity analysis is needed to promote sustainable biodiesel production.
ENVIRONMENTAL RESEARCH
(2022)
Article
Energy & Fuels
Elijah Olawale Ajala, Mary Adejoke Ajala, Temitope Elizabeth Odetoye, Fatai Alade Aderibigbe, Hammed Olalekan Osanyinpeju, Mufutau Ayanniyi Ayanshola
Summary: Synthesis of heterogeneous chicken eggshell catalysts at different temperatures was studied for palm kernel biodiesel production. The CEC900 catalyst showed the highest chemical composition, surface area, and optimal parameters for producing biodiesel. The catalytic activity decreased slightly after repeated usage, suggesting CEC is a cost-effective catalyst option.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Engineering, Biomedical
Julien Duboisset, Patrick Ferrand, Arthur Baroni, Tilman A. Grunewald, Hamadou Dicko, Olivier Grauby, Jeremie Vidal-Dupiol, Denis Saulnier, Le Moullac Gilles, Martin Rosenthal, Manfred Burghammer, Julius Nouet, Corinne Chevallard, Alain Baronnet, Virginie Chamard
Summary: Biomineralization is a complex process bio-controlled by living organisms, involving physical and chemical processes such as ionic concentration regulation and organic molecules production. This study investigates the early-mineralized calcareous units from two bivalve species using advanced optical and X-ray microscopy methods, revealing chemical and crystallographic insights. The observed ring-like structural features in calcite units are correlated with the absence of calcite and an increase in amorphous calcium carbonate and proteins content. Based on these findings, a temporal biomineralization cycle is proposed, providing biomimetic perspectives for designing crystalline materials.
ACTA BIOMATERIALIA
(2022)
Article
Energy & Fuels
Warisara Woranuch, Kanokwan Ngaosuwan, Worapon Kiatkittipong, Doonyapong Wongsawaeng, Weerinda Appamana, Jon Powell, Samuel Lalthazuala Rokhum, Suttichai Assabumrungrat
Summary: In recent years, attention has been focused on the use of heterogeneous catalysts, with CaO powder being considered a promising catalyst for biodiesel production. Through investigation of catalyst pellet fabrication parameters, it was found that using an Al2O3 binder resulted in higher catalytic activity compared to kaolin and diatomite supported catalysts. The CaO to Al2O3 mass ratio significantly affected surface area and total basicity, with the CaO-A(800)-3.5:1 catalyst showing the highest biodiesel yield due to the presence of multiple active crystal phases.
Review
Agricultural Engineering
Mani Jayakumar, Natchimuthu Karmegam, Marttin Paulraj Gundupalli, Kaleab Bizuneh Gebeyehu, Belete Tessema Asfaw, Soon Woong Chang, Balasubramani Ravindran, Mukesh Kumar Awasthi
Summary: Recent research has shown that heterogeneous catalysts are preferred in biodiesel production, with animal shells and bones being suitable biowastes for synthesizing environmentally friendly and cost-effective catalysts.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Digambar Singh, Dilip Sharma, Pushpendra Kumar Sharma, Amit Jhalani, Dinesh Kumar Sharma
Summary: This study optimized the transesterification reaction parameters of palm fatty acids to methyl esters using homogenous sulfuric acid as a catalyst. The optimal results were obtained at a catalyst concentration of 6% (w/w), reaction temperature of 70 degrees C, reaction time of 120 min, and alcohol to oil molar ratio of 30:1, resulting in a yield of 95.35%, viscosity of 5.0 cSt, and density of 880 kg/m(3) for palm biodiesel.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Microbiology
Nadia Maria Lopez Urena, Umer Chaudhry, Rafael Calero Bernal, Santiago Cano Alsua, Davide Messina, Francisco Evangelista, Martha Betson, Marco Lalle, Pikka Jokelainen, Luis Miguel Ortega Mora, Gema Alvarez Garcia
Summary: This study conducted a systematic review and found that Toxoplasma gondii oocysts were present in various matrices worldwide. The detection rates and sample heterogeneity were influenced by multiple factors. Harmonized detection methods are needed to obtain reliable and comparable results.
Review
Green & Sustainable Science & Technology
Haris Mahmood Khan, Tanveer Iqbal, Saima Yasin, Muhammad Irfan, Muhammad Mujtaba Abbas, Ibham Veza, Manzoore Elahi M. Soudagar, Anas Abdelrahman, Md Abul Kalam
Summary: Biodiesel is recognized as a renewable, sustainable, and eco-friendly alternative to traditional diesel. The use of heterogeneous catalysts and cosolvents in biodiesel production can improve yield and efficiency.
Article
Engineering, Environmental
Daniel T. Oyekunle, Maulidi Barasa, Eman A. Gendy, Sieh Kiong Tiong
Summary: In recent years, biodiesel as a substitute for fossil fuels has gained increasing attention, although its production cost is higher. To reduce the cost, biodiesel has been produced from different feedstock based on local availability, but the feedstock quality limits the quality and efficiency of the transesterification process. The quality of biodiesel depends on fatty acid compositions and physicochemical properties of the oil feedstock, and the use of solid-based catalysts has been preferred due to their reusability and ease of separation. Different catalyst properties and process parameters also influence the transesterification reaction.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Environmental Sciences
Nur Azreena Idris, Harrison Lik Nang Lau, Nur Sulihatimarsyila Abd Wafti, Nabilah Kamaliah Mustaffa, Soh Kheang Loh
Summary: In this study, palm fatty acid distillate (PFAD) was used as a feedstock for biodiesel production. Glycerolysis reaction was conducted at temperatures ranging from 160 to 200 degrees C using a natural CaO catalyst derived from raw chicken eggshell. The results showed that the use of activated eggshell as catalyst effectively reduced free fatty acid (FFA) levels to a suitable range for biodiesel production.
WASTE AND BIOMASS VALORIZATION
(2021)
Review
Engineering, Chemical
Fatai A. Aderibigbe, Suleiman Shiru, H. B. Saka, M. K. Amosa, Sherif Ishola Mustapha, Mohammed Alhassan, Ayoade L. Adejumo, Morufudeen Abdulraheem, R. U. Owolabi
Summary: The demand for cleaner fuels has led to the exploration of alternative technologies such as renewable fuels. Research into second generation biofuel feedstocks holds promise for the future of cleaner energy solutions.
CHEMBIOENG REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Bidangshri Basumatary, Sanjay Basumatary, Bipul Das, Biswajit Nath, Pranjal Kalita
Summary: This study focused on the development of a solid base catalyst using waste parts of the banana plant for efficient biodiesel production. The catalyst derived from the banana trunk showed the highest efficacy in catalyzing the transesterification reaction of jatropha oil. Comprehensive characterization of the catalysts demonstrated their potential for large-scale biodiesel production with high efficiency.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Gabriela E. Mijangos, Cristina Cuautli, Issis C. Romero-Ibarra, Jorge Vazquez-Arenas, Carlos E. Santolalla-Vargas, Victor Santes, Adrian A. Castaneda-Galvan, Heriberto Pfeiffer
Summary: This study analyzes the influence of sodium and lithium content in the metasilicate crystal structure on the heterogeneous transesterification reaction for biodiesel production. The results show that sodium metasilicate possesses better stability and reutilization capacity compared to lithium metasilicate. DFT calculations reveal significant differences between these two catalysts.
Article
Energy & Fuels
J. L. Aleman-Ramirez, Joel Moreira, S. Torres-Arellano, Adriana Longoria, Patrick U. Okoye, P. J. Sebastian
Summary: This study demonstrates the development of a sustainable biodiesel production catalyst from moringa leaves, with inorganic carbonate minerals promoting transesterification. The synthesized biodiesel meets commercial specifications, and the catalyst shows potential for reuse in multiple cycles.
Review
Chemistry, Physical
Hui Khim Ooi, Xin Ning Koh, Hwai Chyuan Ong, Hwei Voon Lee, Mohd Sufri Mastuli, Yun Hin Taufiq-Yap, Fahad A. Alharthi, Abdulaziz Ali Alghamdi, Nurul Asikin Mijan
Summary: The dwindling global petroleum deposits have led to a search for alternative energy sources such as biodiesel. Waste-shell derived CaO catalysts show promising activity for transesterification, but their stability needs improvement for repeated use. Research is focusing on modifying the catalyst structure to enhance reactivity and reusability in biodiesel production.
Article
Engineering, Electrical & Electronic
Srinivasan Alagar, Rajesh Madhuvilakku, Ramalakshmi Mariappan, Shakkthivel Piraman
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Article
Chemistry, Analytical
Rajesh Madhuvilakku, Srinivasaan Alagar, Ramalakshmi Mariappan, Shakkthivel Piraman
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
Rajesh Madhuvilakku, Ramalakshmi Mariappan, Srinivasan Alagar, Shakkthivel Piraman
ANALYTICA CHIMICA ACTA
(2018)
Article
Agricultural Engineering
Rajesh Madhuvilakku, Shakkthivel Piraman
BIORESOURCE TECHNOLOGY
(2013)
Article
Chemistry, Analytical
Rajesh Madhuvilakku, Shakkthivel Piraman
Article
Chemistry, Analytical
Rajesh Madhuvilakku, Srinivasan Alagar, Ramalakshmi Mariappan, Shakkthivel Piraman
ANALYTICA CHIMICA ACTA
(2020)
Article
Chemistry, Physical
Srinivasan Alagar, Rajesh Madhuvilakku, Ramalakshmi Mariappan, Shakkthivel Piraman
JOURNAL OF POWER SOURCES
(2019)
Article
Chemistry, Multidisciplinary
Srinivasan Alagar, Chelladurai Karuppiah, Rajesh Madhuvilakku, Shakkthivel Piraman, Chun-Chen Yang
Article
Multidisciplinary Sciences
Srinivasan Alagar, Rajesh Madhuvilakku, Ramalakshmi Mariappan, Chelladurai Karuppiah, Chun-Chen Yang, Shakkthivel Piraman
SCIENTIFIC REPORTS
(2020)
Article
Chemistry, Multidisciplinary
Rajesh Madhuvilakku, Yi-Kuang Yen, Wei-Mon Yan, Guang-Wei Huang
Summary: Analysis of pharmaceutical active ingredients is crucial for quality control and clinical trials. A flexible three-electrode system using laser-scribed graphene (LSG) technology is proposed in this study, which exhibits excellent analytical performance and acceptable selectivity.