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Highly phosphorescent carbene-metal-carboranyl complexes of copper(I) and gold(I)
Chem Commun (Camb). 2023 Sep 20. doi: 10.1039/d3cc04091g. Online ahead of print.ABSTRACTNew phosphorescent "carbene-metal-carboranyl" (CMC) Cu(I) and Au(I) complexes based on the diamidocarbene (DAC) ligand show up to 68% photoluminescence quantum yield and microsecond range lifetimes. CMC organic light emitting diodes (OLEDs) emit sky-blue and warm white electroluminescence.PMID:37729393 | DOI:10.1039/d3cc04091g
Source: Chemical Communications - September 20, 2023 Category: Chemistry Authors: Samuel L Powley Charlotte Riley Hwan-Hee Cho Nguyen Le Phuoc Mikko Linnolahti Neil Greenham Alexander S Romanov Source Type: research
Selective adsorption of polycyclic aromatic hydrocarbons by isostructural hydrogen-bonded organic frameworks
Chem Commun (Camb). 2023 Sep 20. doi: 10.1039/d3cc03131d. Online ahead of print.ABSTRACTTwo isostructural hydrogen-bonded organic frameworks (HOFs) with 1-D hexagonal-shaped pores were crystallised using the molecules biphenyl-3,3',5,5'-tetracarboxylic acid (BPTCA) and [1,1':4',1'']terphenyl- 3,3'',5,5''-tetracarboxylic acid (TPTCA). The desolvated HOFs, named BPTCA-2 and TPTCA-2, exhibited selective adsorption towards naphthalene and anthracene, respectively, during competitive adsorption experiments.PMID:37728438 | DOI:10.1039/d3cc03131d
Source: Chemical Communications - September 20, 2023 Category: Chemistry Authors: Peng Cui Qiang Zhu Fangfang Zhang Dongni Liu Wenshuai Zhu Source Type: research
Deposition of secondary organic aerosol in human lung model: Effect of photochemically aged aerosol on human respiratory system
This study is to estimate the fraction of aerosol deposition using a multiple-path-particle-dosimetry (MPPD) model. For relevancy of real life, the model employed measured concentrations of toluene-derived fresh and aged SOA produced within serially connected smog chamber and PAM-OFR (Potential Aerosol Mass-Oxidation Flow Reactor) under atmospheric environmental conditions (NOx and relative humidity). The number concentrations and chemical composition of fresh and aged aerosols produced within the chambers were measured using Scanning Mobility Particle Sizer (SMPS) and High-Resolution Time-of-Flight Aerosol Mass Spectromet...
Source: Ecotoxicology and Environmental Safety - September 20, 2023 Category: Environmental Health Authors: Hyeon-Ju Oh Yanfang Chen Hwajin Kim Source Type: research
Regulating oxygen vacancies and hydroxyl groups of α-MnO < sub > 2 < /sub > nanorods for enhancing post-plasma catalytic removal of toluene
In this study, α-MnO2 nanorods with tunable oxygen vacancies and hydroxyl groups were synthesized by two-step hydrothermal process to enhance their activity for deep oxidation of toluene. Hydrochloric acid (HCl) was used to assist in synthesis of α-MnO2 nanorods with tunable oxygen vacancies, furtherly, more hydroxyl groups were introduced to HCl-assisted synthesized α-MnO2 by K+ supplement. The results showed that the as-synthesized nanorods exhibited superior activity, improved by nearly 30% removal efficiency of toluene compared to pristine MnO2 at SIE = 339 J/L, and reaching high COx selectivity of 72% at SIE = 483 ...
Source: Environmental Research - September 20, 2023 Category: Environmental Health Authors: Tiancheng Wen Jing Wang Jian Zhang Chao Long Source Type: research
Retention of methyl iodide on metal and TEDA impregnated activated carbon using indigenously developed setup
Environ Res. 2023 Sep 18:117133. doi: 10.1016/j.envres.2023.117133. Online ahead of print.ABSTRACTRemoval of methyl iodide (CH3I) from the air present within nuclear facilities is a critical issue. In case of any nuclear accident, there is a great need to mitigate the radioactive organic iodide immediately as it accumulates in human bodies, causing severe consequences. Current research focuses on removing organic iodides, for which the surface of activated carbon (AC) was modified by impregnating it with different metals individually, i.e. Ag, Ni, Zn, Cu and with the novel combination of these four metals (AZNC). After the...
Source: Environmental Research - September 20, 2023 Category: Environmental Health Authors: Talhat Yaqoob Masroor Ahmad Yasir Faiz Farman Ali Amjad Farooq Faisal Faiz Attaullah Shah Muhammad Asim Irshad Naseem Irfan Nisar Ali Sahid Mehmood Source Type: research
Effects of salinity on methane emissions and methanogenic archaeal communities in different habitat of saline-alkali wetlands
This study conducted simulation experiments of increased salinity to investigate the impact of salinity, habitat, and their interactions on CH4 emissions, as well as to examine the response of methanogenic archaea to salinity. Overall, salinity inhibited CH4 emissions. But there were different responses in the three habitat soils. Salinity decreased the relative abundance of methanogenic archaea and changed the community structure. In addition, salinity changed soil pH and dissolved organic carbon (DOC) and ammonium (NH4+) concentrations, which were significantly correlated with methanogenic archaea. Our study showed that ...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Feng Li Huiju Li Huihui Su Wei Du Zhongyan Gao Huajun Liu Hong Liang Dawen Gao Source Type: research
Biodegradability enhancement of waste lubricating oil regeneration wastewater using electrocoagulation pretreatment
Environ Sci Pollut Res Int. 2023 Sep 20. doi: 10.1007/s11356-023-29841-7. Online ahead of print.ABSTRACTAs a sustainable management of fossil fuel resources and ecological environment protection, recycling used lubricating oil has received widespread attention. However, large amounts of waste lubricating-oil regeneration wastewater (WLORW) are inevitably produced in the recycling process, and challenges are faced by traditional biological treatment of WLORW. Thus, this study investigated the effectiveness of electrocoagulation (EC) as pretreatment and its removal mechanism. The electrolysis parameters (current density, ini...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Li-Li Shan Zhao Tan Yu Chen Ruo-Shan Wang Meng Zhang Chang-Long Pang Yu-Hong Cui Zhi-Min Liao Hong-Qiang Ma Ze-Bing Zhu Source Type: research
Comprehensive profiling of the metabolome in corn silage inoculated with or without < em > Lactiplantibacillus plantarum < /em > using different untargeted metabolomics analyses
Arch Anim Nutr. 2023 Sep 19:1-19. doi: 10.1080/1745039X.2023.2247824. Online ahead of print.ABSTRACTSilage fermentation is a complicated biochemical process involving interactions between microbes and metabolites. However, the overall metabolome feature of ensiled forage and its response to lactic acid bacteria inoculation is poorly understood. Hence, in this study metabolome profiles of whole-plant corn silage inoculated with or without Lactiplantibacillus plantarum were characterised via solid-phase microextraction/gas chromatography/mass spectrometry (SPME-GC-MS), gas chromatography/time-of-flight mass spectrometry (GC-...
Source: Archives of Animal Nutrition - September 20, 2023 Category: Nutrition Authors: Rina Su Wencan Ke Jie Bai Musen Wang Samaila Usman Dongmei Xie Dongmei Xu Mengyan Chen Xusheng Guo Source Type: research
Adsorption of methyl orange from aqueous solution with lignin-modified metal-organic frameworks: Selective adsorption and high adsorption capacity
Bioresour Technol. 2023 Sep 18:129781. doi: 10.1016/j.biortech.2023.129781. Online ahead of print.ABSTRACTThe lignin-based metal-organic framework (UIO-g-NL) was prepared by a Schiff base reaction of aminated lignin and the zirconium cluster-based MOF (UIO-66-NH2) as an adsorbent of methyl orange (MO). The results showed that UIO-g-NL maintained the original crystal structure and aminated lignin was successfully introduced after functionalization. UIO-g-NL selectively adsorbed MO from a mixed solution 50 mg/L MO and 50 mg/L methylene blue (MB), with an adsorption efficiency of nearly 100%. In a mixed solution 250 mg/L MB a...
Source: Bioresource Technology - September 20, 2023 Category: Biotechnology Authors: Chao Wang Xuezhen Feng Shibin Shang He Liu Zhanqian Song Haibo Zhang Source Type: research
Insight into the effect of particulate organic matter on sludge granulation at the low organic load: Sludge characteristics, extracellular polymeric substances and microbial communities response
Bioresour Technol. 2023 Sep 18:129791. doi: 10.1016/j.biortech.2023.129791. Online ahead of print.ABSTRACTThis paper investigated the effect of particulate organic matter (POM) on sludge granulation under low organic load. The results showed that POM promoted the formation of aerobic granular sludge (AGS) with a chemical oxygen demand (COD) fraction of 25%, and POM also enhanced the sludge settleability and biomass retention. However, when the COD fraction of POM increased to 50% and 75%, the AGS performance deteriorated. The analysis of extracellular polymeric substances revealed that the POM (accounted for ≤ 50% of COD...
Source: Bioresource Technology - September 20, 2023 Category: Biotechnology Authors: Zhe Liu Rushuo Yang Dan Zhang Jiaxuan Wang Min Gao Aining Zhang Wenlong Liu Yongjun Liu Source Type: research
Rapidly Synthesized Single-Ion Conductive Hydrogel Electrolyte for High-Performance Quasi-Solid-State Zinc-ion Batteries
Angew Chem Int Ed Engl. 2023 Sep 20:e202312020. doi: 10.1002/anie.202312020. Online ahead of print.ABSTRACTSingle-ion conductive electrolytes can largely eliminate electrode polarization, reduce the proportion of anion migration and inhibit side reactions in batteries. However, they usually suffer from insufficient ion conductivity due to the strong interaction between cations and cationic receptors. Here we report an ultrafast light-responsive covalent organic frameworks (COF) with sulfonic acid groups modification as the acrylamide polymerization initiator. Benefiting from the reduced electrostatic interaction between Zn...
Source: Angewandte Chemie - September 20, 2023 Category: Chemistry Authors: Tianyu Qiu Tonghui Wang Wensi Tang Yingqi Li Yangguang Li Xingyou Lang Qing Jiang Huaqiao Tan Source Type: research
Organic Polymer Dots Photocatalyze CO2 Reduction in Aqueous Solution
Angew Chem Int Ed Engl. 2023 Sep 20:e202312276. doi: 10.1002/anie.202312276. Online ahead of print.ABSTRACTDeveloping low-cost and efficient photocatalysts to convert CO2 into valuable fuels is desirable to realize a carbon-neutral society. In this work, we report that polymer dots (Pdots) of poly[(9,9'-dioctylfluorenyl-2,7-diyl)-co-(1,4-benzo-thiadiazole)] (PFBT) without adding any extra co-catalyst can photocatalytic reduction of CO2 into CO in aqueous solution, rendering a CO production rate of 57 μmol g-1 h-1 with a detectable selectivity of up to 100%. 5 cycles of CO2 re-purging experiments show no distinct decline i...
Source: Angewandte Chemie - September 20, 2023 Category: Chemistry Authors: Bin Cai Martin Axelsson Shaoqi Zhan Mariia V Pavliuk Sicong Wang Jingguo Li Haining Tian Source Type: research
Visible Light-Prompted Regioselective Synthesis of Novel 5-Aroyl/hetaroyl-2',4-dimethyl-2,4'-bithiazoles as DNA- and BSA-Targeting Agents
Biomacromolecules. 2023 Sep 20. doi: 10.1021/acs.biomac.3c00554. Online ahead of print.ABSTRACTOrganic transformations mediated by visible light have gained popularity in recent years as they are green, renewable, inexpensive, and clean and yield excellent products. The present study describes cyclo-condensation of 2-methylthiazole-4-carbothioamide with differently substituted α-bromo-1,3-diketones achieved by utilizing a white light-emitting diode (LED) (9W) to accomplish the regioselective synthesis of novel 5-aroyl/hetaroyl-2',4-dimethyl-2,4'-bithiazole derivatives as DNA/bovine serum albumin (BSA)-targeting agents. Th...
Source: Biomacromolecules - September 20, 2023 Category: Biochemistry Authors: Ranjana Aggarwal Naman Jain Gyan Prakash Dubey Snigdha Singh Ramesh Chandra Source Type: research
Aza-Michael Addition in Explicit Solvent: A Relative Energy Gradient - Interacting Quantum Atoms Study
Chemphyschem. 2023 Sep 20:e202300529. doi: 10.1002/cphc.202300529. Online ahead of print.ABSTRACTAza-Michael additions are key reactions in organic synthesis. We investigate, from a theoretical and computational point of view, several examples ranging from weak to strong electrophiles in dimethylsulfoxide treated as explicit solvent. We use the REG-IQA method, which is a quantum topological energy decomposition (Interacting Quantum Atoms, IQA) coupled to a chemical-interpretation calculator (Relative Energy Gradient, REG). We focus on the rate-limiting addition step in order to unravel the different events taking place in ...
Source: Chemphyschem - September 20, 2023 Category: Chemistry Authors: A ël Cador Vincent Tognetti Laurent Joubert Paul Popelier Source Type: research
Halide-Coupled Double Electron Transfer with Electron-Rich Diboranes
Chemistry. 2023 Sep 20:e202302911. doi: 10.1002/chem.202302911. Online ahead of print.ABSTRACTThe ditriflato-diborane B2(μ-hpp)2(OTf)2 (hpp = 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidinate) acts as a stable surrogate of the elusive dication [B2(hpp)2]2+, being both electrophilic (vacant boron p orbitals) and nucleophilic (filled B-B bond orbital). This combination of seemingly contrasting behaviors could be used to develop a metallomimetic diborane chemistry, with Lewis σ-basic and π-acidic substrates being bound and reduced at the diborane. Here, we report on a novel reaction type within this general theme, in wh...
Source: Chemistry - September 20, 2023 Category: Chemistry Authors: Erik Filbeck Sebastian Cremer Moritz C F Jansen Elisabeth Kaifer Hans-J örg Himmel Source Type: research
