Article
Environmental Sciences
Usman Khalil, Muhammad Bilal Shakoor, Shafaqat Ali, Sajid Rashid Ahmad, Muhammad Rizwan, Abdulaziz Abdullah Alsahli, Mohammed Nasser Alyemeni
Summary: Rice husk was found to be an efficient adsorptive material for Cr(VI) removal from wastewater, with high adsorption capacity and potential environmental and economic benefits. Studies showed that physical and monolayer adsorption were the dominant mechanisms, with a fast adsorption rate of Cr(VI) onto rice husk mainly attributed to -OH and C-H groups.
Article
Engineering, Chemical
Farkhanda Yasin, Tariq Javed, Muhammad Idrees Jilani, Shagufta Zafar, Muhammad Imran Din
Summary: Bio-sorbents, specifically rice husk, show promising potential in removing synthetic CV tint from watery solutions. By adjusting various parameters, the adsorption process was optimized and shown to be feasible, with an exothermic behavior and increased randomness prevailing in the process.
DESALINATION AND WATER TREATMENT
(2021)
Article
Chemistry, Physical
Z. A. Matysina, N. A. Gavrylyuk, M. T. . Kartel, A. Veziroglu, T. N. Veziroglu, A. P. Pomytkin, D. V. Schur, T. S. Ramazanov, M. T. Gabdullin, An. D. Zolotarenko, Al. D. Zolotarenko, N. A. Shvachko
Summary: A statistical theory was developed for hydrogenation and phase transitions in the MgCeCo4-H-2 system under pressure. The study calculated free energy values, obtained the equation of thermodynamic equilibrium, estimated the temperature of the order-disorder phase transition, and constructed isotherms and Isoplethes of hydrogen absorption-desorption. The research also found a hysteresis effect and determined the temperature dependence of hydrogen solubility, with calculated and experimental graphs showing similar nature.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Multidisciplinary
Mohammed Benjelloun, Youssef Miyah, Gulsun Akdemir Evrendilek, Farid Zerrouq, Sanae Lairini
Summary: The increased environmental awareness and tighter regulatory standards have led various industries to seek appropriate wastewater treatment technologies for colored wastewater. This review provides detailed information on dyes, their classification, the environmental impact of water pollution, and the use of adsorption technology as a sustainable solution for dye removal. Studies evaluating the effectiveness of different adsorbents, particularly low-cost ones, in removing dyes from aqueous solutions are highlighted.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Environmental Sciences
Xavy Borgohain, Harunar Rashid
Summary: The current study successfully synthesized Mg(OH)(2) nanoflakes without any added template and found that these nanoflakes exhibit excellent adsorption performance for fluoride. The adsorption capacity for fluoride is high under different conditions, and the adsorbent can be reused.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Zakia Alhashem, Ashraf H. Farha, Shehab A. Mansour, Maha A. Tony
Summary: Nowadays, the use of natural materials, especially waste valorization, has gained attention from scientists and academia. Rice husk powder as a byproduct material has potential for physicochemical improvement. γ-irradiation modification of rice husk has shown promise as a green tool for this purpose.
Editorial Material
Agricultural Engineering
Xule Huang, Xueru Sheng, Yanzhu Guo, Yanning Sun, Pedram Fatehi, Haiqiang Shi
Summary: A low-cost and effective rice straw-based phosphate adsorbent was prepared through a three-step reaction process, and the removal process of phosphate was optimized. The results demonstrated that the adsorbent can effectively remove phosphorus compounds from wastewater.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Environmental Sciences
Judilyn Q. Filipinas, Kim Katrina P. Rivera, Dennis C. Ong, Sheila Mae B. Pingul-Ong, Ralf Ruffel M. Abarca, Mark Daniel G. de Luna
Summary: This study successfully removed sodium diclofenac from aqueous solutions using rice hull biochar as an adsorbent, and identified factors affecting the removal efficiency. The Langmuir isotherm best fitted the experimental data, and the pseudo second-order model showed high correlation coefficients.
Article
Environmental Sciences
Natarajan Rajamohan, Subrajit Bosu, Manivasagan Rajasimman, Sunita Varjani
Summary: In this research, a novel nano sorbent IL-MCNT was used to remove Selenium from aqueous media. The optimal operating conditions were determined as pH 2.0, 100 mg/L of IL-MCNT dosage, 308 K temperature, 45 min of contact time, and 110 g of IL-MCNT dosage. The Langmuir isotherm and pseudo-second-order model were found to fit the experimental data well.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Tolga Bahadir, Ismail Simsek, Sevket Tulun, Hakan Celebi
Summary: This study investigated the adsorption abilities and surface properties of tea waste, banana peels, almond shells, and eggshells for removing lead from water. The results showed that banana peels had the highest removal efficiency and the adsorption mechanism likely involved physical and cooperative adsorption processes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Tingting Li, Liangshu Xia
Summary: A Ca-PB adsorbent was synthesized and shown to effectively treat water contaminated by Cs-137 under extremely acidic conditions. The research demonstrated the adsorbent's ability to efficiently adsorb Cs+ ions and provided insights into the kinetics and equilibrium of the adsorption process.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Chemistry, Physical
Song-Jeng Huang, Veeramanikandan Rajagopal, Vladimir Skripnyuk, Eugen Rabkin, Chieh Fang
Summary: This study investigates the hydrogen storage properties of commercial AZ31 and AZ91 magnesium alloys with refined microstructure. Various processing techniques, such as equal channel angular pressing (ECAP) and high energy ball milling (HEBM), were used to modify the microstructure and phase composition of the alloys. X-ray diffraction (XRD), scanning electron microscopy (SEM), and optical digital microscopy (ODM) were employed to characterize the microstructure and phase transformations during hydrogen absorption/desorption processes. The results show that the processed alloys have enhanced hydrogen storage capacity and absorption/desorption kinetics. The isothermal kinetics of the alloys were determined using a Sieverts'-type apparatus at a temperature of 350 degrees Celsius.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Polymer Science
Amina Abbaz, Sihem Arris, Gianluca Viscusi, Asma Ayat, Halima Aissaoui, Yasser Boumezough
Summary: Water pollution is a pressing issue that requires immediate attention. This study developed hydrogel beads made from sodium alginate and pomegranate fruit peels for the purpose of adsorbing Safranin O dye in aqueous solutions. The results showed that the synthesized beads had favorable adsorption properties, with maximum adsorption capacity reaching 30.769 mg/g at 293 K. The study also provided insights into the adsorption kinetics, concentration dependence, and thermodynamics of the dye adsorption process.
Article
Biochemistry & Molecular Biology
Thouraya Turki, Abdelkader Hamdouni, Alexandru Enesca
Summary: Fluorine is a common element that is found in various forms and concentrations in the Earth's crust, air, food, and natural waters. Its effects on human health depend on the absorbed concentration, with low levels being beneficial and high levels being toxic. Adsorption using modified zeolites has been proven to be an efficient and cost-effective method for removing fluoride from water. The study investigated the adsorption process and determined influential parameters such as particle size, stirring rate, pH, initial concentration, contact time, and temperature. The findings showed that modified zeolite had a 94% removal efficiency at specific conditions.
Article
Engineering, Chemical
Sadia Perveen, Ambreen Khan, Attiq Iqbal, Shamsul Qamar
Summary: A two-dimensional non-equilibrium and non-linear lumped kinetic model of liquid chromatography is formulated and numerically approximated in this study to simulate the separation of multi-component mixtures in a packed fixed bed cylindrical column operating under isothermal conditions. By introducing distinct regions of injection at the column inlet, radial concentration gradients are generated to intensify the effect of mass transfer rate in the radial-direction. The developed numerical algorithm provides an efficacious mechanism for investigating the retention behavior, systematic monitoring, and efficient operation of non-equilibrium liquid chromatographic processes.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Plant Sciences
Takaaki Ogura, Natsuko Kobayashi, Christian Hermans, Yasunori Ichihashi, Arisa Shibata, Ken Shirasu, Naohiro Aoki, Ryohei Sugita, Takahiro Ogawa, Hisashi Suzuki, Ren Iwata, Tomoko M. Nakanishi, Keitaro Tanoi
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Geochemistry & Geophysics
Kento Murota, Keitaro Tanoi, Asumi Ochiai, Satoshi Utsunomiya, Takumi Saito
APPLIED GEOCHEMISTRY
(2020)
Article
Plant Sciences
Rie Shimizu-Inatsugi, Silvija Milosavljevic, Kentaro K. Shimizu, Gabriela Schaepman-Strub, Keitaro Tanoi, Yasuhiro Sato
Summary: Excessive metal ions in soil can be toxic to plant species, but can also aid in plant survival by providing elemental defense against herbivores and pathogens. This study compared the accumulation levels of zinc and cadmium in the allotetraploid A. kamchatica with its diploid progenitors, finding that A. kamchatica had intermediate levels of zinc accumulation and lower levels of cadmium compared to its progenitors. Field experiments showed that A. kamchatica had a lower level of elemental defense compared to the hyperaccumulator progenitor A. halleri, consistent with its lower metal accumulation levels.
PLANT SPECIES BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Mohammad Arif Ashraf, Takashi Akihiro, Keita Ito, Sayaka Kumagai, Ryohei Sugita, Keitaro Tanoi, Abidur Rahman
Summary: The study identified ABC proteins ABCG33 and ABCG37 as facilitators of Cs+ influx, showing that they act redundantly and independently of the potassium uptake pathway. This research used a combinatorial approach to confirm the role of ABCG33 and ABCG37 as new Cs+ influx carriers.
Article
Plant Sciences
Daiki Shinozaki, Keitaro Tanoi, Kohki Yoshimoto
Summary: This study demonstrates the important role of autophagy in adapting to excess zinc stress in plants, with the distribution of Fe3+ from source leaves to sink leaves via autophagy promoting healthy growth under excess zinc.
PLANT AND CELL PHYSIOLOGY
(2021)
Article
Physics, Applied
Keisuke Kurita, Takuro Sakai, Nobuo Suzui, Yong-Gen Yin, Ryohei Sugita, Natsuko Kobayashi, Keitaro Tanoi, Naoki Kawachi
Summary: The radioisotope tracer imaging system developed in this study, Live-autoradiography, allows continuous visualization of radioisotope dynamics in living plants, showing element migration and accumulation in different parts of intact plants. The system demonstrated good linearity between image intensity and Cs-137 radioactivity and was successfully used to image Cs-137 dynamics in a soybean plant for four days, revealing accumulation in specific plant regions. This system can be valuable for studying plant physiological phenomena and quantitatively measuring radionuclides.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Geography, Physical
Tomoki Oda, Norifumi Hotta, Satoru Miura, Izuki Endo, Keitaro Tanoi, Chris S. Renschler, Nobuhito Ohte
Summary: This study observed the spatial distribution of Cs-137 in a deciduous forest hillslope in Fukushima and used a mass balance model to explain its formation. The results showed that Cs-137 activity concentration was significantly higher in the downslope riparian area than in the upslope ridge area, and transport through litter and sediment contributed minimally to the inventory.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Plant Sciences
Shahin Imran, Masumi Oyama, Rie Horie, Natsuko Kobayashi, Alex Costa, Ryosuke Kumano, Chiho Hirata, Sen Thi Huong Tran, Maki Katsuhara, Keitaro Tanoi, Takayuki Kohchi, Kimitsune Ishizaki, Tomoaki Horie
Summary: This study investigates the structure and function of the high-affinity potassium transporter (MpHKT1) in the liverwort Marchantia polymorpha. The C-terminal hydrophilic domain of MpHKT1 is found to play a unique role in regulating transport activity and ion selectivity. Overexpression of MpHKT1 leads to higher Na+ accumulation, while phenotypes with truncated C-terminal domains are weaker.
PLANT AND CELL PHYSIOLOGY
(2022)
Article
Plant Sciences
Ryo Tabata, Takehiro Kamiya, Shunpei Imoto, Hana Tamura, Kumiko Ikuta, Michika Tabata, Tasuku Hirayama, Hironaka Tsukagoshi, Keitaro Tanoi, Takamasa Suzuki, Takushi Hachiya, Hitoshi Sakakibara
Summary: Plants have evolved sophisticated systemic processes to optimize their nutrient acquisition efficiency in heterogeneous soil environments. This study investigates the molecular basis of long-distance signaling in response to iron starvation and reveals the regulatory mechanism of iron homeostasis in plants.
PLANT AND CELL PHYSIOLOGY
(2022)
Article
Plant Sciences
Yuko Kurita, Satomi Kanno, Ryohei Sugita, Atsushi Hirose, Miwa Ohnishi, Ayumi Tezuka, Ayumi Deguchi, Kimitsune Ishizaki, Hidehiro Fukaki, Kei'ichi Baba, Atsushi J. Nagano, Keitaro Tanoi, Tomoko M. Nakanishi, Tetsuro Mimura
Summary: This study visualized the seasonal phosphorus re-translocation routes in plants using real-time radioisotope imaging and autoradiography. The results provide insight into the molecular mechanisms of phosphorus redistribution and offer a basis for further understanding plant growth strategies.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Yusaku Noda, Atsushi Hirose, Mayumi Wakazaki, Mayuko Sato, Kiminori Toyooka, Naoki Kawachi, Jun Furukawa, Keitaro Tanoi, Ken Naito
Summary: This research uncovers a unique salt tolerance mechanism in Vigna riukiuensis. It was observed that V. riukiuensis accumulates higher sodium levels in the leaves compared to its relative V. nakashimae, which suppresses sodium allocation to the leaves. Interestingly, starch granules were found in the chloroplasts of V. riukiuensis, and degrading leaf starch resulted in no sodium accumulation. SEM-EDX analysis confirmed the presence of sodium around the starch granules in V. riukiuensis chloroplasts.
JOURNAL OF PLANT RESEARCH
(2023)
Letter
Plant Sciences
Kenji Suetsugu, Ryohei Sugita, Akiko Yoshihara, Hidehito Okada, Kae Akita, Noriko Nagata, Keitaro Tanoi, Koichi Kobayashi
Article
Multidisciplinary Sciences
Yukari Nagatoshi, Kenta Ikazaki, Yasufumi Kobayashi, Nobuyuki Mizuno, Ryohei Sugita, Yumiko Takebayashi, Mikiko Kojima, Hitoshi Sakakibara, Natsuko I. Kobayashi, Keitaro Tanoi, Kenichiro Fujii, Junya Baba, Eri Ogiso-Tanaka, Masao Ishimoto, Yasuo Yasui, Tetsuji Oya, Yasunari Fujita
Summary: Drought significantly affects crop production even under mild conditions. In this study, the authors develop a ridge-induced mild drought system in the field and find that phosphate starvation response occurs before ABA response in early mild drought. Their observations in both the field and laboratory provide insights into the molecular response to mild drought in field-grown plants and the relationship between nutrition and drought stress response.
NATURE COMMUNICATIONS
(2023)
Article
Agronomy
Yusaku Noda, Ryohei Sugita, Atsushi Hirose, Naoki Kawachi, Keitaro Tanoi, Jun Furukawa, Ken Naito
Summary: By studying different species in the Vigna genus, it was found that different germplasms have different mechanisms in Na+ allocation, which can be accumulated in a single crop through breeding or genetic engineering techniques.
Article
Biochemistry & Molecular Biology
Xiaoyu Yang, Natsuko Kobayashi, Yoshiki Hayashi, Koichi Ito, Yoshitaka Moriwaki, Tohru Terada, Kentaro Shimizu, Motoyuki Hattori, Ren Iwata, Hisashi Suzuki, Tomoko M. Nakanishi, Keitaro Tanoi
Summary: This study investigates the significance of the conserved GMN motif in the Arabidopsis thaliana AtMRS2-1 transporter for magnesium transport, using structural prediction and mutagenesis experiments.
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
(2022)
