V-based materials are considered promising candidates as cathode materials for zinc ion batteries (ZIBs). However, the inherent low conductivity of V-based compounds leads to the sluggish diffusion kinetics of Zn and serious cycling capacity degradation of ZIBs. Herein, 1D ZnVO(OH)·2HO (ZVO) nanowires were grown on monodisperse 2D TiCT MXene nanosheets a facile microwave-assisted method.
View Article and Find Full Text PDFRural areas lacking essential sewage treatment facilities and collection systems often experience eutrophication due to elevated nutrient loads. Understanding nitrogen (N) sources and transport mechanisms in rural catchments is crucial for improving water quality and mitigating downstream export loads, particularly during storm events. To further elucidate the sources, pathways, and transport mechanisms of N from a rural catchment with intensive agricultural activities during storm events, we conducted an analysis of 21 events through continuous sampling over two rainy seasons in a small rural catchment from the lower reaches of the Yangtze River.
View Article and Find Full Text PDFPhotocatalysis technology based on solar-powered semiconductors is widely recognized as a promising approach for achieving eco-friendly, secure, and sustainable degradation of organic contaminants. Nevertheless, conventional photocatalysts exhibit drawbacks such as a wide bandgap, and rapid recombination of photoinduced electron/hole pairs, in addition to complicated separation and recovery procedures. In this research, we cultivated BiOBr in situ on the surface of copper foam to fabricate a functional photocatalyst (denoted as BiOBr/Cu foam), which was subsequently employed for the photodegradation of Methylene Blue.
View Article and Find Full Text PDFNitrogen is an essential nutrient element for crop growth, and biochar is a good material for soil remediation. In this study, a pakchoi ( L.) pot experiment was conducted to investigate the effects of the combined application of three nitrogen fertilizers, including urea, ammonium sulfate, calcium nitrate, and biochar on pakchoi growth and cadmium (Cd) uptake from cropland soil contaminated by Cd.
View Article and Find Full Text PDFOptical bound states in the continuum (BICs) offer strong interactions with quantum emitters and have been extensively studied for manipulating spontaneous emission, lasing, and polariton Bose-Einstein condensation. However, the out-coupling efficiency of quasi-BIC emission, crucial for practical light-emitting devices, has received less attention. Here, we report an adaptable approach for enhancing quasi-BIC emission from a resonant monocrystalline silicon (c-Si) metasurface through lattice and multipolar engineering.
View Article and Find Full Text PDFZinc ion batteries (ZIBs) have attracted extensive attention for their high safety and environmentally friendly nature, and considerable theoretical capacities. Due to its unique two-dimensional layered structure and high theoretical specific capacities, molybdenum disulfide (MoS) presents as a promising cathode material for ZIBs. Nevertheless, the low electrical conductivity and poor hydrophilicity of MoS limits its wide application in ZIBs.
View Article and Find Full Text PDFJ Integr Plant Biol
December 2022
Associations between 3D chromatin architectures and epigenetic modifications have been characterized in animals. However, any impact of DNA methylation on chromatin architecture in plants is understudied, which is confined to Arabidopsis thaliana. Because plant species differ in genome size, composition, and overall chromatin packing, it is unclear to what extent findings from A.
View Article and Find Full Text PDFPolyploidy, or whole-genome duplication (WGD), often induces dramatic changes in gene expression due to "transcriptome shock. " However, questions remain about how allopolyploidy (the merging of multiple nuclear genomes in the same nucleus) affects gene expression within and across multiple tissues and developmental stages during the initial foundation of allopolyploid plants. Here, we systematically investigated the immediate effect of allopolyploidy on gene expression variation in an artificial allopolyploidy system consisting of a constructed allotetraploid wheat (AADD genome, accession AT2) and its diploid progenitors and .
View Article and Find Full Text PDFYing Yong Sheng Tai Xue Bao
January 2022
Soil water content is an important factor driving microbial activities related to soil nitrogen (N) transformation. In this study, N pair tracing technique combined with the numerical model FLUAZ was used to investigate the gross N mineralization, immobilization, nitrification, and denitrification rates in grassland and forest land soils from Beian City, Heilongjiang Province, China under laboratory condition [60% or 100% water holding capacity (WHC)]. The responses of soil gross N transformation rates to soil water content changes, and the mechanisms of N production, consumption, and conservation in soil under different water conditions and its environmental effects were elucidated.
View Article and Find Full Text PDFChemSusChem
January 2022
Adipic acid (AA) is a key industrial dicarboxylic acid intermediate used in nylon manufacturing. Unfortunately, the traditional process technology is accompanied by serious environmental pollution. Given the growing demand for adipic acid and the desire to reduce its negative impact on the environment, considerable efforts have been devoted to developing more green and friendly routes.
View Article and Find Full Text PDFA rice pot experiment was conducted to study the effects of four soil conditioners, namely polyacrylic acid (PAA), polyacrylamide (PAM), polyvinyl alcohol (PVA), and humic acid (HA), on rice growth and heavy metal uptake from paddy soil contaminated with copper and cadmium. The results showed that the height and straw weight of rice in the conditioned soil treatments increased by 7.34%-22.
View Article and Find Full Text PDFA 7-day incubation experiment was conducted at 25℃ with 60% water holding capacity (WHC) to study the short-term effects of different fertilization treatments on the regularity of greenhouse gas emissions from northeast black soil. The results showed that application of chemical N fertilizer had no effect on CO emission, as compared with the non-fertilizer control treatment; however, a combined application of N fertilizer with pig manure or straw increased CO emissions by one magnitude compared to that of the chemical N fertilizer treatment, with the effect of chemical N fertilizer and straw being more prominent. Nitrification was the main process resulting in NO emission for the non-fertilizer control and chemical N fertilizer treatments, and the application of chemical N fertilizer had no significant effect on NO emission, as compared with the non-fertilizer control.
View Article and Find Full Text PDFHuan Jing Ke Xue
February 2015
Phytolacca americana L. (P. americana) is a manganese (Mn) hyperaccumulator and cell wall plays an important role in the accumulation and detoxicity of Mn.
View Article and Find Full Text PDFRegularity of greenhouse gas emissions from black soil with different reclamation years in northern China was investigated by an incubation experiment. Soil samples cultivated for 2 years, 30 years, 100 years and uncultivated were collected and incubated at 2 degrees C and a soil moisture of 60% of the water hold capacity (WHC) for 7 days. The results indicated that the physical and chemical properties of black soil changed significantly after reclamation, which had significant influence on the greenhouse gas emissions.
View Article and Find Full Text PDFTo evaluate the runoff load of nitrogen (N) and phosphorus (P) in a rural residential area with high N deposition and few wastewater treatment systems in East China, we monitored the concentrations of N and P during 21 rainfall events in a typical village catchment in Jiangsu Province, China. The results showed that the average event mean concentrations (EMC, mg L(-1)) were 6.20 for dissolved nitrogen (DN), 4.
View Article and Find Full Text PDFYing Yong Sheng Tai Xue Bao
October 2012
A laboratory experiment with the soil samples collected from China and Canada was conducted to study the effects of land use type (forestland vs. grassland) and incubation temperature (10 degrees C vs. 15 degrees C) on the soil nitrification, nitrogen mineralization, and N2O and CO2 emissions under aerobic condition.
View Article and Find Full Text PDFJ Environ Sci (China)
August 2009
The effects of chlorothalonil and carbendazim on nitrification and denitrification in six soils in upland and rice paddy environments were investigated. Laboratory aerobic (60% water holding capacity) and anaerobic (flooded) conditions were studied at 25 degrees C and fungicide addition rates of 5.5 mg/kg A.
View Article and Find Full Text PDFYing Yong Sheng Tai Xue Bao
December 2008
A 14 d incubation test at 60% WHC and 25 degrees C was conducted to study the effects of fungicide chlorothalonil at its application rates of 0, 5.5 mg x kg(-1) (field application rate, FR), 110 mg x kg(-1) (20FR) and 220 mg x kg(-1) (40FR) on the nitrous oxide (N2O) and carbon dioxide (CO2) emissions from acidic, neutral, and alkaline soils. The results indicated that the effects of chlorothalonil on the two gases emissions depended on its application rate and soil type.
View Article and Find Full Text PDF