Results 31 to 40 of about 657,738 (346)

Tuning electronic structure of the carbon skeleton to accelerate electron transfer for promoting the capture of gold

Environment International, 2023
The efficient and selective recovery of gold from secondary sources is key to sustainable development. However, the complexity of the recovery environment can significantly complicate the compositions of utilized sorbents. Here, we report a straw-derived
Dewei Li, Xianxin Luo, Penghui Shao, Zhu Meng, Ziwei Yao, Liming Yang, Jiachuang Shao, Hao Dong, Li Zhang, Lingrong Zeng, Xubiao Luo   +10 more
doaj   +1 more source

Biochar for the Removal of Emerging Pollutants from Aquatic Systems: A Review

International Journal of Environmental Research and Public Health, 2023
Water contaminated with emerging pollutants has become a serious environmental issue globally. Biochar is a porous and carbon-rich material produced from biomass pyrolysis and has the potential to be used as an integrated adsorptive material.
M. Dong, Lizhi He, Mengyuan Jiang, Yi Zhu, Jie Wang, Williamson Gustave, Shuo Wang, Yun Deng, Xiaokai Zhang, Zhenyu Wang   +9 more
semanticscholar   +1 more source

Indoor Exposure to Selected Air Pollutants in the Home Environment: A Systematic Review

International Journal of Environmental Research and Public Health, 2020
(1) Background: There is increasing awareness that the quality of the indoor environment affects our health and well-being. Indoor air quality (IAQ) in particular has an impact on multiple health outcomes, including respiratory and cardiovascular illness,
S. Vardoulakis, E. Giagloglou, S. Steinle, Alice Davis, A. Sleeuwenhoek, K. Galea, Ken Dixon, J. Crawford   +7 more
semanticscholar   +1 more source

Quantitative Microbial Risk Assessment of Urban Wastewater Pertaining to Irrigation of Agricultural Products in Qom, Iran, in 2020

Journal of Environmental Health and Sustainable Development, 2023
Introduction: The present study aims to evaluate adverse health effects caused by the use of wastewater for the irrigation of fields in Qom province, Iran.
Ahmad Reza Yari, Yadollah Ghafuri, Rahim Aali   +2 more
doaj  

Oxidative 1,2-carboamination of alkenes with alkyl nitriles and amines toward γ-amino alkyl nitriles

Nature Communications, 2017
Difunctionalization of readily available alkenes is a powerful method to quickly build molecular complexity. Here the authors report a three-component, oxidative carboamination between alkenes, alkyl nitriles and amines, producingγ-amino alkyl nitriles.
Yan-Yun Liu, Xu-Heng Yang, Ren-Jie Song, Shenglian Luo, Jin-Heng Li   +4 more
doaj   +1 more source

Trace Cupric Species Triggered Decomposition of Peroxymonosulfate and Degradation of Organic Pollutants: Cu(III) Being the Primary and Selective Intermediate Oxidant.

Environmental Science and Technology, 2020
Activation of persulfates to degrade refractory organic pollutants is currently a hot topic of advanced oxidation. Developing simple and effective activation approaches is crucial for the practical application of persulfates.
Li-hong Wang, Haodan Xu, Ning Jiang, Zimeng Wang, Jin Jiang, Tao Zhang   +5 more
semanticscholar   +1 more source

Morphology Adjustment and Optimization of CuS as Enzyme Mimics for the High Efficient Colorimetric Determination of Cr(VI) in Water

Nanomaterials, 2022
Metal sulfide is often utilized as a catalyzed material to form colorimetric response system for some heavy metal detection. While the aggregation effect and conventional morphology limited the catalyzed efficiency.
Xinman Tu, Linhong Ge, Lamei Deng, Li Zhang   +3 more
doaj   +1 more source

Fenton-like activity and pathway modulation via single-atom sites and pollutants comediates the electron transfer process

Proceedings of the National Academy of Sciences of the United States of America
Significance The origin of versatile oxidation pathways toward targeted pollutants in the single-atom catalysts (SACs)/peroxymonosulfate (PMS) systems is always identified from the coordination structures rather than from the perspective of pollutant ...
Jirui Guo, Yujie Wang, Ya-nan Shang, Kexin Yin, Qian Li, Baoyu Gao, Yanwei Li, Xiaoguang Duan, Xing Xu   +8 more
semanticscholar   +1 more source

Spectral pollution

IMA Journal of Numerical Analysis, 2004
We discuss the problems arising when computing eigenvalues of self-adjoint operators which lie in a gap between two parts of the essential spectrum. Spectral pollution, i.e. the apparent existence of eigenvalues in numerical computations, when no such eigenvalues actually exist, is commonplace in problems arising in applied mathematics.
Davies, E B, Plum, M
openaire   +3 more sources

Marine Pollution [PDF]

Science, 1971
In the editorial, "Marine pollution" (8 January 1971, page 21), the value given for the concentration of mercury found in tuna (paragraph 2, line 10, 0.5 x 10-6 part per billion) is incorrect. The correct value is 500 parts per billion.
openaire   +3 more sources