Article
Engineering, Environmental
Yaneth Cardona, Agnieszka Wegrzyn, Pawel Miskowiec, Sophia A. Korili, Antonio Gil
Summary: This study evaluates the photocatalytic degradation of 2,6-dichlorophenol, triclosan, and bisphenol A by TiO2 catalysts under UV and visible light. The results show that UV light is more effective for photocatalytic degradation, with triclosan being the most degraded pollutant.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Physical
Muhammad Kashif, Minhao Yuan, Yaxin Su, Philippe M. Heynderickx, Asadullah Memon
Summary: Strict air pollution restrictions have led to the increased demand for effective low-temperature selective catalytic reduction (LT-SCR) of NOx with hydrocarbons (HC), resulting in significant attention towards mixed metal oxides and clay minerals supported catalysts. Pillared interlayered clay (PILC) materials, which have a meso-microporous structure, good surface acidity, large specific surface area, adjustable pore size, interlayer ion-exchange nature, and good thermal stability, are widely used as catalyst support for LT-SCR. This review study focuses on the importance of clay minerals and Mt-based PILC-supported catalysts for LT-SCR of NOx with HC, providing a compilation of SCR performances of various metals-supported PILC-based catalysts and their proposed reaction mechanisms, metal loading effects, and influences of O2, H2O, and SO2 poisoning for HC-SCR of NOx conversion.
APPLIED CLAY SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Kailang Sun, Yonghong Liu, Taojun Zhang, Jie Zhou, Jinyang Chen, Xiaorong Ren, Zhen Yang, Minfeng Zeng
Summary: Montmorillonite clay was modified and used as a support for Pd nanoparticles. Pd@CS/AlMn-PM showed better catalytic performance than Pd@PVP/AlMn-PM due to its larger specific area, stronger chelation to Pd species, and better solvent resistance.
Article
Engineering, Environmental
Marcus Vinicius do Prado, Beatriz Gonzalez, Miguel A. Vicente, Raquel Trujillano, Eduardo Jose Nassar, Antonio Gil, L. Santamaria, Sophia A. Korili, Liziane Marcal, Emerson H. de Faria, Katia J. Ciuffi
Summary: A versatile catalyst was prepared by immobilizing FeTFPP on amino-functionalized diatomaceous earth (DE-APTES) via grafting. The catalyst showed high efficiency in cyclooctene epoxidation and cyclohexane oxidation reactions, and demonstrated CO2 adsorption capacity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Seyed Heydar Mosavi Mirak, Seyedmehdi Sharifian, Fatemeh Esmaeili Khalil Saraei, Neda Asasian-Kolur, Bahram Haddadi, Christian Jordan, Michael Harasek
Summary: In this study, the production process of titanium-pillared clay (Ti-PILC) using Iranian clay and titanium isopropoxide was optimized by changing operating parameters. It was found that the clay suspension concentration and H+/Ti ratio had a significant impact on the specific surface area, while the increase in calcination temperature had a negative effect on the porous texture.
Article
Environmental Sciences
Kaixin Li, Yiqian Wang, Wenjie Zhou, Tingting Cui, Jinglei Yang, Zhipeng Sun, Yonggang Min, Jong-Min Lee
Summary: The transformation of plastic waste into valuable fuel products through catalytic pyrolysis is a promising and eco-friendly strategy. Co/Ni pillared montmorillonites were developed as low-cost and effective catalysts for the pyrolysis of post-consumer film waste, resulting in higher liquid product yield, increased selectivity of hydrocarbons, and enhanced H-2 production. The study also identified factors that promote the selectivity of condensable products and explored the pyrolytic mechanism for H-2 production. Furthermore, the solid residues can potentially be used to produce valuable carbonaceous materials.
Article
Chemistry, Physical
Madhuchhanda Sarkar, Kausik Dana
Summary: The study investigated the intercalation of different cation exchange capacity (CEC) montmorillonite clays with dialkyl ammonium cations of varying alkyl chain lengths. The results showed that the basal spacing of intercalated clays increased with longer alkyl chain lengths. The arrangement of the intercalated cations changed from flat bilayer to paraffinic, and the highest CEC clay showed the greatest expansion in the clay interlayer. The conformation of the intercalated ammonium cations also changed with longer alkyl chain lengths, indicating greater ordered conformations.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Engineering, Chemical
Alemtsehay Tesfay Reda, Dongxiang Zhang, Xiyan Xu, Meng Pan, Cui Chang, Constantin Muhire, Xiaoru Liu, Jiayi Sun
Summary: Bi@AlCu-PILC is a mesoporous material with high iodine capture capacity and thermal stability, absorbing I2 through chemical bonding and physical adsorption. The stability of iodine-containing material significantly improves after Bi2O3 treatment, indicating the potential application of Bi@AlCu-PILC in vapor iodine capture and final disposal.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Eleni Thomou, Viktoria Sakavitsi, Giasemi K. Angeli, Konstantinos Spyrou, Konstantinos G. Froudas, Evmorfia K. Diamanti, George E. Romanos, Georgios N. Karanikolos, Pantelis N. Trikalitis, Dimitrios Gournis, Petra Rudolf
Summary: A team of researchers developed a silsesquioxane pillared graphene oxide for CO2 capture, optimizing parameters to maximize CO2 adsorption capacity and achieving significant CO2 storage capabilities.
Article
Chemistry, Multidisciplinary
Fabrizio Bernini, Elena Castellini, Maria Franca Brigatti, Beatrice Bighi, Marco Borsari, Daniele Malferrari
Summary: Kaolinite functionalized with mu-oxo Fe3+-phenanthroline complex was found to efficiently remove and store gaseous heptanethiol. The continuous catalytic activity of Fe3+ towards the oxidation of thiol to disulfide explained the significant removal of the smelly gas and the high thiol/Fe(3+)Phen molar ratio.
Article
Engineering, Environmental
Yaneth Cardona, Sophia A. Korili, Antonio Gil
Summary: This study proposed the use of aluminum saline slag as the aluminum source for synthesizing alumina pillared clays (Al-PILC). The synthesis process was studied by varying parameters and comparing acid and alkaline extraction methods. The Al-PILC obtained from both extracts showed excellent potential as adsorbents for organic pollutants.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Mohammad Asgari, Uttandaraman Sundararaj
Summary: The successful synthesis of multi-walled carbon nanotubes on a pillared montmorillonite nanoclay was achieved, with the resulting nanofillers showing promising electrical properties when mixed with PMMA polymer. A trinuclear Fe (III)-acetato complex was used as a precursor for the CNT synthesis, showing high efficiency. Further analysis using various techniques revealed that these CNT-clay hybrid nanofillers are effective for charge storage applications, especially at higher iron concentrations.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Philip A. Maughan, Luc Bouscarrat, Valerie R. Seymour, Shouqi Shao, Sarah J. Haigh, Richard Dawson, Nuria Tapia-Ruiz, Nuno Bimbo
Summary: In this study, a porous Mo2TiC2 MXene with nanoengineered interlayer distances was successfully created using an amine-assisted silica pillaring method. The pillared MXene exhibited significantly enhanced cycling performance for Li-ion storage and fast-charging properties, showing superior capacity, rate capability, and cycling stability compared to the non-pillared analogue. Spectroscopic techniques were used to demonstrate the charge storage mechanism and the conversion reaction occurring in this MXene, which increases the capacity beyond intercalation. The study also investigated the sodium storage properties of pillared and non-pillared Mo2TiC2 for the first time.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Applied
Bruna Pes Nicola, Anderson Joel Schwanke, Katia Bernardo-Gusmao
Summary: In this study, porous clay nanostructures with different structures were synthesized as catalytic supports. By anchoring organometallic complexes to these materials, reusable heterogenized catalysts were obtained. The heterogenization of the materials was found to affect the thermal stability of the catalyst and the selectivity of the products, and different material structures also had a noticeable influence on the catalytic activity.
Article
Chemistry, Physical
Mohammad Asgari, Gerardo Vitale, Uttandaraman Sundararaj
Summary: A novel synthesis of a nickel complex was presented to fabricate Ni-pillared clay (Ni-PILC) as the supporting catalyst for synthesizing carbon nanotubes (CNTs). Various characterizations were performed to identify the complex structure and investigate the influence of catalyst concentration on the properties of CNTs. It was found that higher concentrations of the nickel salt improved the quality and yield of CNTs.
APPLIED CLAY SCIENCE
(2021)
Article
Environmental Sciences
Jun Koarashi, Syusaku Nishimura, Mariko Atarashi-Andoh, Takeshi Matsunaga, Tsutomu Sato, Seiya Nagao
Article
Engineering, Environmental
Paul Clarence M. Francisco, Tsutomu Sato, Tsubasa Otake, Takeshi Kasama, Shinichi Suzuki, Hideaki Shiwaku, Tsuyoshi Yaita
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2018)
Article
Engineering, Environmental
Lei Li, Guangxia Qi, Bangda Wang, Dongbei Yue, Yi Wang, Tsutomu Sato
JOURNAL OF HAZARDOUS MATERIALS
(2018)
Article
Chemistry, Analytical
Zigong Ning, Munehide Ishiguro, Luuk K. Koopal, Tsutomu Sato, Jun'ichi Kashiwagi
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2018)
Article
Geochemistry & Geophysics
Kanako Toda, Haruna Sato, Nilan Weerakoon, Tsubasa Otake, Satoshi Nishimura, Tsutomu Sato
Article
Geochemistry & Geophysics
Shuang Zhou, Tsutomu Sato, Tsubasa Otake
Article
Materials Science, Multidisciplinary
Masaji Kato, Yoshitaka Nara, Yuki Okazaki, Masanori Kohno, Toshinori Sato, Tsutomu Sato, Manabu Takahashi
MATERIALS TRANSACTIONS
(2018)
Correction
Geochemistry & Geophysics
Kanako Toda, Haruna Sato, Nilan Weerakoon, Tsubasa Otake, Satoshi Nishimura, Tsutomu Sato
Article
Environmental Sciences
Wilson Mwandira, Kazunori Nakashima, Satoru Kawasaki, Mayumi Ito, Tsutomu Sato, Toshifumi Igarashi, Kawawa Banda, Meki Chirwa, Imasiku Nyambe, Shouta Nakayama, Mayumi Ishizuka
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Geochemistry & Geophysics
Frances Chikanda, Tsubasa Otake, Yoko Ohtomo, Akane Ito, Takaomi D. Yokoyama, Tsutomu Sato
Article
Environmental Sciences
Wilson Mwandira, Kazunori Nakashima, Satoru Kawasaki, Mayumi Ito, Tsutomu Sato, Toshifumi Igarashi, Meki Chirwa, Kawawa Banda, Imasiku Nyambe, Shouta Nakayama, Hokuto Nakata, Mayumi Ishizuka
Article
Chemistry, Inorganic & Nuclear
Xinyuan Ke, Susan A. Bernal, Tsutomu Sato, John L. Provis
DALTON TRANSACTIONS
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Tsubasa Otake, Miu Nishikata, Yoko Ohtomo, Yuki Kimura, Daisuke Kawamoto, Tsutomu Sato
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Materials Science, Multidisciplinary
Atsushi Mukunoki, Takahiro Kikuchi, Tamotsu Chiba, Tomofumi Sakuragi, Toshihiro Kogure, Tsutomu Sato
Article
Geochemistry & Geophysics
Yoshitaka Nara, Masaji Kato, Ryuhei Niri, Masanori Kohno, Toshinori Sato, Daisuke Fukuda, Tsutomu Sato, Manabu Takahashi
PURE AND APPLIED GEOPHYSICS
(2018)