Article
Plant Sciences
Zheyong Li, Qu Su, Luojing Xiang, Yajun Yuan, Shuxin Tu
Summary: This study investigated the ability of rice husk biochar to remove Cd(II) and Se(IV) from aqueous solutions. The results showed that the sorption performance of rice husk biochar increased with the preparation temperature, with higher sorption capacity and faster rate for Cd(II) ions compared to Se(IV) ions.
Review
Chemistry, Multidisciplinary
Johanna Heine, Benjamin Peerless, Stefanie Dehnen, Crispin Lichtenberg
Summary: Key challenges in modern synthetic chemistry include the design of reliable, selective, and more sustainable synthetic methods, as well as the development of promising candidates for new materials. Molecular bismuth compounds offer valuable opportunities as they show a spectrum of properties that is yet to be fully exploited. Recent findings highlight the essential contributions to the synthesis, analyses, and utilization of ionic bismuth compounds.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Environmental Sciences
Yupeng Yan, Biao Wan, Muammar Mansor, Xiaoming Wang, Qin Zhang, Andreas Kappler, Xionghan Feng
Summary: The co-sorption of metal ions and anions/ligands at the mineral-water interface plays a critical role in regulating the fate and bioavailability of these components in natural environments. The mechanisms of co-sorption are influenced by various factors, leading to either promotive effects or competitive effects depending on the specific conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Qian-Qian Chen, Chun-Li Hu, Ming-Zhi Zhang, Jiang-Gao Mao
Summary: Researchers have successfully designed and synthesized a new birefringent crystal with a large birefringence. The combination of chloroiodate(v) group and 2-amino-5-chloropyridine group has resulted in a superior synergy effect.
Article
Energy & Fuels
Gideon Dordzie, Morteza Dejam
Summary: Viscosity modification of fluids injected into oil reservoirs is crucial for successful oil recovery. This study investigates the viscosity behavior of ZrO2 and gamma-Al2O3 nanoparticles (NPs) in different aqueous solutions. The results show that the viscosity of the nanofluids increases with the concentration of NPs, and the type of electrolytic ions in the solution affects the viscosity behavior. The proposed model by Williams et al. predicts the viscosities of the nanofluids more accurately compared to Einstein's model.
Article
Crystallography
Gita Sultanbayeva, Aktolkyn Agatayeva, Raushan Kaiynbayeva, Nazym Kozhabekova, Raisa Chernyakova, Umirzak Jussipbekov
Summary: This paper presents a systematic study on the sorption capacity of natural zeolite with respect to In3+ and Ga3+ cations in model systems. The study reveals the patterns of sorption depending on the zeolite vs. solution ratio, temperature, and time. It is found that the sorption can be controlled by the process duration.
Article
Environmental Sciences
Jiaolong Ying, Xiaopeng Qin, Zhanhao Zhang, Fei Liu
Summary: The study demonstrated that birnessite effectively removes lincomycin from aqueous solution and the removal process follows a second-order model. The presence of cations inhibited the removal of lincomycin, while the addition of certain anions improved the efficiency of birnessite. Mn(IV) and Mn(III) were identified as core manganese species crucial for lincomycin removal. These findings shed light on the removal process of lincomycin and the impact of cations and anions on similar pollutant removal by birnessite.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Biochemistry & Molecular Biology
Quanzhi Tian, Yingchu Bai, Yinhai Pan, Changshuai Chen, Shuo Yao, Keiko Sasaki, Haijun Zhang
Summary: This review comprehensively summarizes the application of geopolymer-based stabilization/solidification (S/S) technology in the treatment of hazardous pollutants. The S/S mechanisms of typical cationic heavy metals are discussed, while the immobilization ability of geopolymer on anionic pollutants is poor due to the repulsive effect. Furthermore, the use of geopolymer-based composites as adsorbents for removing hazardous pollutants from aqueous conditions is briefly discussed.
Article
Chemistry, Inorganic & Nuclear
Hua Ke, Xin-Mei Zhu, Shu-Mei Xie, Ping-Xiang Ming, Jian-Zhen Liao
Summary: Crystalline materials based on naphthalenediimide exhibit persistent stable radical-doped characteristics under ambient conditions, forming more ultrastable organic radicals upon exposure to visible light or heat treatment. Furthermore, these materials show significant near-infrared photothermal conversion without additional chemical modification.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Multidisciplinary
Chongyang Yuan, Wei Chen, Zunxian Yang, Zhenguo Huang, Xuebin Yu
Summary: The study found that different cations and anions in solutions have varying effects on the hydrolysis of MgH2, with the fastest hydrogen yield achievable in Fe-2(SO4)(3) solution. By combining MgCl2 and MgSO4 solutions for anions, the optimal water utilization rate can be achieved.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Crystallography
Luka Fotovic, Vladimir Stilinovic
Summary: The study showed that N-ethylated halogenopyridinium cations form shorter halogen bonds with iodide anions, and two novel asymmetric monocations were obtained during the synthesis process.
Article
Chemistry, Physical
Wenqi You, Liang Liu, Junjie Xu, Tao Jin, Lichun Fu, Yuwei Pan
Summary: Zero-valent iron/peroxymonosulfate (Fe-0/PMS) has been studied for its potential in wastewater treatment. Anions and cations have significant effects on the performance of Fe-0/PMS system. This study investigated the influence of various anions and cations on tartrazine removal in the Fe-0/PMS system, and found that certain anions and cations can enhance the removal efficiency.
Article
Chemistry, Inorganic & Nuclear
Meng-Yao Zhang, Feng-Ying Yi, Lan-Jun Liu, Guo-Ping Yan, Hui Liu, Jun-Fang Guo
Summary: The research synthesized a luminescence sensor based on a europium(III)-based lanthanide-organic framework, which showed high sensitivity and selectivity towards 4-nitrophenol, iodide, and iron ions. The possible luminescence sensing mechanisms were investigated, with competition absorption identified for 4-NP and iodide ions, and a multi-quenching mechanism dominated by competition absorption for Fe3+ ions.
DALTON TRANSACTIONS
(2021)
Article
Engineering, Environmental
Othman Fallatah, Mahmoud R. Khattab
Summary: Saudi Arabia faces challenges in providing enough clean water to its population as one of the largest and fastest-growing nations outside its own continent. This study collected 49 groundwater samples from June to December 2021 and used different analytical techniques to determine the concentrations of anions and cations. The results of the hydrogeochemical study show that groundwater is impacted by aquifer matrix disintegration, water infiltration from irrigation systems, and water-rock interactions. The collected groundwater samples contained acceptable concentrations of anions (HCO3-, CO32-, Cl-, NO32-, and F-) and cations (Na+, K+, Ca2+, and Mg2+), making them suitable for human and industrial consumption.
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2023)
Article
Water Resources
Hillary Onyeka Abugu, Pamela Favour Egwuonwu, Janefrances Ngozi Ihedioha, Nwachukwu Romanus Ekere
Summary: Peasant farmers in Udi and Ezeagu communities cultivate vegetables along the Ajali River, but face water shortage due to beverage industries discharging wastewater. Assessment showed that the Ajali River water is suitable for irrigation purposes.
APPLIED WATER SCIENCE
(2021)
Article
Horticulture
Patriciani Estela Cipriano, Matias Siueia Junior, Ray Rodrigues de Souza, Deivisson Ferreira da Silva, Rodrigo Fonseca da Silva, Valdemar Faquin, Maria Ligia de Souza Silva, Luiz Roberto Guimaraes Guilherme
Summary: This study evaluated the suitability of radish as an agricultural crop for selenium biofortification and investigated the effects of different selenium doses and sources on macronutrient accumulation and absorption. The results showed that applying selenium as selenate can increase potassium content without reducing radish production, making it an effective method for selenium biofortification.
SCIENTIA HORTICULTURAE
(2022)
Article
Geochemistry & Geophysics
Deyvison Andrey Medrado Goncalves, Wendel Valter da Silveira Pereira, Karen H. Johannesson, Daniel Vidal Perez, Luiz Roberto Guimaraes Guilherme, Antonio Rodrigues Fernandes
Summary: The objectives of this study were to establish geochemical background values of aluminum, iron, arsenic, barium, cadmium, cobalt, chromium, copper, manganese, nickel, lead, vanadium, and zinc for eastern Amazon soils and to assess the relationship between soil chemical and granulometric attributes. The results revealed the high acidity, low levels of cations and organic carbon, and highly heterogeneous geomorphological characteristics of the soils.
Article
Soil Science
Fernanda Magno Silva, Sergio Henrique Godinho Silva, Anita Fernanda Dos Santos Teixeira, Alberto Vasconcellos Inda, Tatiele Fruett, David C. Weindorf, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: Proximal sensors such as pXRF, Vis-NIR, and magnetic susceptibilimeter have been used to investigate the chemical, physical, and mineralogical properties of soils. This study aims to differentiate soil classes with similar pedogenetic development but different parent materials using the association of these sensors. The results show that pXRF analysis and magnetic susceptibility are decisive in distinguishing soil classes based on parent material, while Vis-NIR provides spectral responses reflecting mineralogical differences. Proximal sensors contribute to the differentiation of soil properties within the same parent material and within soils of the same taxonomic order but different parent materials, improving soil characterization and genesis evaluations at reduced time and costs.
Article
Plant Sciences
Ruby Vega-Ravello, Maria Belen Romero-Poma, Cynthia de Oliveira, Luiz Roberto Guimaraes Guilherme, Guilherme Lopes
Summary: This study aimed to investigate the effects of soil selenium application on the selenium content and tolerance of quinoa plants under water deficit conditions. The results showed that appropriate selenium application increased the grain dry mass and selenium content of quinoa grains, and improved the photosynthetic rate and antioxidant activity of quinoa under water deficit conditions.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Soil Science
Marcelo Mancini, Renata Andrade, Anita Fernanda dos Santos Teixeira, Sergio Henrique Godinho Silva, David C. Weindorf, Somsubhra Chakraborty, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: Proximal sensing has gained popularity in soil science with various sensors and data processing methods being tested. The study aimed to provide guidance for predicting macronutrient levels and soil acidity using different sensor combinations. The best results were achieved by combining all sensors, with pXRF data playing a key role in improving predictions. Model separation by soil order was found to enhance predictions, particularly for Ultisols.
Article
Environmental Sciences
Lais L. Silva, Marina M. Feitosa, Emerson F. Vilela, Guilherme Lopes, Luiz R. G. Guilherme, Yuri L. Zinn
Summary: High levels of arsenic were found in soils developed from ultramafic rocks in Brazil, but the arsenic was mainly contained in resistant phases and bound to secondary iron oxides. The availability of arsenic varied among soils, with some soils showing low availability and others showing high availability. Generally, the high arsenic contents in these soils do not raise immediate concerns, but the release of arsenic in groundwater and surface water deserves further investigation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Paula Godinho Ribeiro, Gabriel Caixeta Martins, Xueqiang Zhu, Yuncong C. Li, Luiz Roberto Guimaraes Guilherme
Summary: This study evaluated the effectiveness of a soil amendment called HydroPotash (HYP) in immobilizing cadmium (Cd) in acidic soils and reducing its accumulation in rice tissues. The results showed that HYP significantly increased soil solution pH and electrical conductivity, reduced soluble Cd concentration, promoted rice growth, and minimized Cd accumulation in rice grains.
ENVIRONMENTAL RESEARCH
(2022)
Article
Geochemistry & Geophysics
Sergio Henrique Godinho Silva, Diego Ribeiro, Thais Santos Branco Dijair, Fernanda Magno Silva, Anita Fernanda dos Santos Teixeira, Renata Andrade, Marcelo Mancini, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: This study aims to evaluate the chemical composition of different quartz varieties using a portable X-ray fluorescence (pXRF) spectrometer and relate them to soil attributes. Hyaline quartz had the highest SiO2 content and the lowest contents of other elements. Random Forest algorithm identified SiO2, oxides, chlorine, sulfur, phosphorus pentoxide, and potassium oxide as the main components for discriminating quartz varieties. pXRF provided enhanced information on the chemical characterization of quartz varieties without generating chemical pollutants.
Article
Food Science & Technology
Maila Adriely Silva, Gustavo Ferreira de Sousa, Gary Banuelos, Douglas Amaral, Patrick H. Brown, Luiz Roberto Guimaraes Guilherme
Summary: This study aimed to evaluate the effect of different selenium application methods (soil or foliar) and sources (organic or inorganic) on the total selenium content and speciation in selenium-enriched soybean grains. The results showed that all treatments with inorganic selenium increased the selenium content in grains compared to the control. More than 80% of the total selenium was present as selenomethionine (SeMet), and the speciation was influenced by the selenium source and application method. The treatments using inorganic selenium, applied via soil or foliar, produced the highest content of SeMet in soybean grains. Finally, the preservation of selenium species in products derived from soybean grains should be evaluated.
Article
Food Science & Technology
Patriciani Estela Cipriano, Rodrigo Fonseca da Silva, Cynthia de Oliveira, Alexandre Boari de Lima, Fabio Aurelio Dias Martins, Gizele Celante, Alcindo Aparecido dos Santos, Marcos Vinicio Lopes Rodrigues Archilha, Marcos Felipe Pinatto Botelho, Valdemar Faquin, Luiz Roberto Guimaraes Guilherme
Summary: Agronomic biofortification with selenium can effectively increase the nutritional intake and grain yield of sorghum. Sodium selenate is more efficient compared to organoselenium compounds, but acetylselenide has a positive effect on the antioxidant system.
Article
Plant Sciences
Maila Adriely Silva, Gustavo Ferreira de Sousa, Gustavo Avelar Zorgdrager Van Opbergen, Guilherme Gerrit Avelar Zorgdrager Van Opbergen, Ana Paula Branco Corguinha, Jean Michel Moura Bueno, Gustavo Brunetto, Jose Marcos Leite, Alcindo Aparecido dos Santos, Guilherme Lopes, Luiz Roberto Guimaraes Guilherme
Summary: This study investigated the effects of selenium foliar application combined with a multi-nutrient fertilizer on soybean. The results showed that grain yield of soybean increased with the application of multi-nutrient fertilizer, while selenium rates linearly increased selenium contents up to 80 g Se ha(-1), regardless of the use of multi-nutrient fertilizer. The two genotypes (58I60 Lanca and M5917) had critical thresholds of 1.0 and 3.0 mg kg(-1) for grain selenium content, respectively. Selenium application promoted higher contents of K, P, and S in grains of genotype Lanca and higher contents of Mn and Fe in grains of genotype M5917. The findings highlight the importance of considering different fertilization strategies and genotypic variations when assessing the effects of selenium on soybean yield and grain quality.
Article
Plant Sciences
Jucelino de Sousa Lima, Otavio Vitor Souza Andrade, Leonidas Canuto dos Santos, Everton Geraldo de Morais, Gabryel Silva Martins, Yhan S. Mutz, Vitor L. Nascimento, Paulo Eduardo Ribeiro Marchiori, Guilherme Lopes, Luiz Roberto Guimaraes Guilherme
Summary: Water deficit inhibits plant growth and leads to overproduction of reactive oxygen species (ROS), causing oxidative stress. Iodine (I) has been shown to enhance the antioxidant defense system and improve photosynthesis under adverse conditions. In this study, soybean plants exposed to potassium iodide (KI) concentrations of 10 and 20 .mol L-1 showed increased biomass, improved gas exchange, and reduced lipid peroxidation under water deficit. However, higher KI concentrations negatively affected photosynthetic efficiency, biomass accumulation, and partition under well-irrigated conditions.
Article
Plant Sciences
Gustavo Ferreira de Sousa, Maila Adriely Silva, Mariana Rocha de Carvalho, Everton Geraldo de Morais, Pedro Antonio Namorato Benevenute, Gustavo Avelar Zorgdrager Van Opbergen, Guilherme Gerrit Avelar Zorgdrager Van Opbergen, Luiz Roberto Guimaraes Guilherme
Summary: This study aimed to investigate the role of Se supply in improving osmotic stress tolerance in coffee seedlings while also evaluating the best timing for Se application. Results demonstrated that osmotic stress promoted mild stress in the coffee plants and led to starch degradation. Seedlings that received foliar Se application 8 days before the stress exhibited higher antioxidant enzyme activity compared to the control group.
Article
Agriculture, Multidisciplinary
Suellen Nunes de Araujo, Jessica Francisco Raymundo, Fabio Freire Ribeiro Costa, Josimar Henrique de Lima Lessa, Luiz Roberto Guimaraes Guilherme, Guilherme Lopes
Summary: This study evaluated the effectiveness of different selenium application methods and rates for biofortification of common bean, and assessed the residual effects of soil selenium additions on subsequent growth of Mombaga grass. The results showed that using selenium-enriched urea, selenium foliar application, and a combination of both methods were more effective in increasing selenium contents in common bean grains. Additionally, the methods of selenium addition via soil using fertilizers as carriers showed potential residual effects on succeeding crops, as evidenced by increased selenium contents in Mombaga grass shoots.
CROP & PASTURE SCIENCE
(2022)
