Article
Agronomy
Mikhail A. Proskurnin, Dmitry S. Volkov, Yaroslav V. Timofeev, Dmitry S. Fomin, Olga B. Rogova
Summary: This study investigated the granulometric aggregate fractions (20 mu m-2 mm) of chernozem soils with different agricultural use histories using ATR FTIR and linear discriminant analysis. The results showed that the temperature dependence of band maxima differed for different soil bands, and the bands with soil organic matter contribution were more stable to experimental conditions. The thermal behavior of specific IR bands could be used to distinguish intact soils from agriculturally used samples.
Review
Chemistry, Multidisciplinary
Zhiwen Fan, Yingbing Zou, Chulong Liu, Shengchang Xiang, Zhangjing Zhang
Summary: This review provides a systematic introduction to the construction of hydrogen-bonded organic framework materials through intermolecular hydrogen bonding forces. It focuses on the types and principles of nitrogen-containing monomers used, and summarizes the design advantages and applications of crystalline materials in various fields.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Agronomy
Mikhail A. Proskurnin, Dmitry S. Volkov, Olga B. Rogova
Summary: Diffuse reflectance FTIR measurements with 2D-COS were used to accurately identify the bands of chernozem soil organic matter (SOM) and mineral silicate matrix. The study compared samples from different land use types of a long-term field experiment. Homospectral and synchronous 2D-COS maps revealed correlation regions related to hydrogen bonds, SOM, and quartz matrix. The SOM range had distinct signatures, distinguishing different land use pairs. Asynchronous 2D-COS maps showed bands related to the proportion of silicate to quartz in small fractions, as well as carbonyl, carboxylate, and aromatic C-C in larger factions. The proposed approach provides reliable identification of SOM components with weaker IR bands compared to the mineral matrix.
Review
Chemistry, Multidisciplinary
Zihao Guo, Qiong Yu, Yucong Chen, Jie Liu, Tao Li, Yuhuang Peng, Wenbin Yi
Summary: Molecules with fluorine-containing functional groups exhibit excellent properties in the field of energetic materials due to their strong electron-withdrawing ability and high density of fluorine. This review focuses on three types of energetic materials containing fluorine-containing functional groups, including trinitromethyl groups (C(NO2)(2)F, C(NO2)(2)NF2), trifluoromethyl group (CF3), and difluoroamino and pentafluorosulfone groups (NF2, SF5), and investigates their synthetic methods, physicochemical parameters, and energetic properties. The incorporation of fluorine-containing functional groups is critical for the development of novel high energy density materials and is rapidly being adopted in the design of energetic materials.
Article
Environmental Sciences
Kaihui Xia, Sheng-Shi Mei, Cheng-Cheng Liu, Hao Liu, Renmin Yuan, Shang Liu
Summary: An intensive field campaign was conducted in Hefei, China, to investigate the composition and sources of organic aerosols (OA). The study found that OA was mainly composed of alkane, hydroxyl, and carboxylic acid functional groups. The analysis of OA spectra identified three major sources: aged fossil fuel combustion, biomass burning, and vegetative detritus/dust.
ATMOSPHERIC ENVIRONMENT
(2022)
Review
Materials Science, Multidisciplinary
Chunjuan Qiu, Lili Jiang, Yige Gao, Lizhi Sheng
Summary: The introduction of oxygen-containing functional groups in carbon materials can improve the specific capacity of supercapacitors, but the influence mechanism on the structure and physico-chemical properties of carbon-based electrode materials needs further exploration.
MATERIALS & DESIGN
(2023)
Article
Environmental Sciences
Qi Yu, Jingyi Feng, Jie Li, Anfei He, G. Daniel Sheng
Summary: The presence of surface oxygen-containing functional groups (OFGs) on carbonaceous materials influenced the adsorption capacity at different sites, with OFGs on mesoporous surfaces inhibiting adsorption while those on external surfaces promoting it. Multiple linear relationships were established between monolayer adsorption capacity and the amounts of OFGs at different sites. Factors such as compound properties and molecular polarity influenced the inhibition or promotion effects of OFGs on adsorption behavior.
Article
Engineering, Environmental
Francesco Parrino, Massimiliano D'Arienzo, Emanuela Callone, Riccardo Conta, Barbara Di Credico, Simone Mascotto, Andreas Meyer, Roberto Scotti, Sandra Dire
Summary: The introduction of modified TiO2 into the polymer matrix significantly enhances the oxygen uptake rate, while different oxidation mechanisms were observed. Materials containing modified TiO2 showed higher activity and can be widely used for the protection of electronic devices.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Francielly Torres Dos Santos, Cleide Fehmberger, Cleiton Margatto Aloisio, Ivonete Rossi Bautitz, Eliane Hermes
Summary: Adding crude glycerin during composting of organic swine waste can increase temperature and mineralization of organic matter, promoting stabilization of organic compost. The organic composts have high nutrient contents and are non-toxic, making them suitable for agricultural use.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Longgang Chu, Zhaoyue Sun, Long Cang, Xinghao Wang, Guodong Fang, Juan Gao
Summary: In this study, aromatic molecule-modified CNTs with target single oxygen groups were synthesized and used as catalysts to investigate the explicit role of each oxygen group in the 2eORR process. The results revealed that the -C--O group was the most active component followed by the -COOH group, while the -C--O group with zigzag and armchair configurations had no apparent influence on the 2eORR performance. This work provides new insights into the nature of active sites on the oxygen-doped carbon catalysts for 2eORR.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Plant Sciences
Olalekan Oluwatoyosi Salami, Olushola Olajumoke Adesanwo, Olusegun Olufemi Awotoye
Summary: This study evaluates the chemical characteristics of humic acids (HA) in Nigeria Alfisol as indicators of soil agroecological quality under different cultivation regimes. The study examines conventional cassava farms, oil palm plantations, agroforestry, and undisturbed sites at two soil depths using elemental analysis and Fourier transform infrared spectroscopy. The results show that the undisturbed site has the highest yield of HAs, with carbon content clustering around 56%. Notable differences in the intensity of some bands were observed depending on site characteristics and soil depth. Plant residues in tree-based agricultural systems significantly improved organic matter accumulation and the quantity of humic acid.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Materials Science, Multidisciplinary
V. S. Prudkovskiy, K. P. Katin, M. M. Maslov
Summary: This study focuses on the quality control of a new two-dimensional semiconductor material based on the molecular structure of TTA during large-scale production. It demonstrates that Raman and IR spectroscopy can be efficient tools for this purpose.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Polymer Science
Hiroaki Imoto, Kensuke Naka
Summary: This minireview discusses the progress of arsenic-containing polymer materials, emphasizing the significance of synthetic methods and functional organoarsenic chemistry.
Article
Environmental Sciences
Danping Wu, Quan Chen, Min Wu, Peng Zhang, Liping He, Yihui Chen, Bo Pan
Summary: This study investigated the reactivity of pyrogenic carbon by regulating the species and content of oxygen-containing functional groups on biochar surface, and conducting batch sorption/degradation experiments for rhodamine B. The results showed that biochars produced at different temperatures had different reaction active sites, suggesting that strategies in manipulating biochar properties should be carefully considered.
Review
Multidisciplinary Sciences
Johannes Tintner
Summary: Dating of organic findings is a fundamental task in many scientific fields, with radiocarbon dating and dendrochronology being the most commonly used methods. However, both methods have systematic restrictions. Molecular changes over time are reported for many materials under different preservation conditions, serving as clocks that start at the time when a given molecule was formed.
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES
(2021)
Article
Environmental Sciences
Shuai Wang, Junping Xu, Xi Zhang, Yu Wang, Jiayan Fan, Lan Liu, Nan Wang, Dianyuan Chen
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Green & Sustainable Science & Technology
Shuai Wang, Nan Wang, Junping Xu, Xi Zhang, Sen Dou
Article
Environmental Sciences
Shuai Wang, Wanhong Li, Xinhua Yin, Nan Wang, Shuai Yuan, Ting Yan, Shuang Qu, Xiangbo Yang, Dianyuan Chen
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2019)
Article
Green & Sustainable Science & Technology
Shiji Chen, Xinhua Yin, Shuai Wang, Jinggui Wu
Article
Agronomy
Nan Wang, Qi Zhang, Weihua Han, Chengxin Bai, Boyang Hou, Yue Liu, Shuai Wang
Summary: This study investigated the effect of different glycine concentrations on the abiotic humification pathways and characteristics of products from the Maillard reaction. The results showed that increasing glycine concentration simplified the structure of organic molecules in the supernatant and reduced the total organic carbon (TOC) content. A higher glycine concentration also increased the proportion of aromatic carbon structure in the dark-brown residue. The addition of glycine promoted the formation of humic-like acid (HLA), and higher glycine concentrations were more effective in increasing HLA formation.
