Results 61 to 70 of about 5,587,825 (349)

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Microscopic Simulation of RE³⁺ Migration in Ion-Type Rare Earth Ores Based on Navier–Stokes Equation—Exchange Reaction—Ion Migration Coupling

Metals
In the in-situ leaching method of ionic rare earth, ion exchange reaction between rare earth ions and leaching agent ions is carried out, which allows the rare earth ions to be leached from the ore body as the leaching solution flows through the pores ...
Dan Wang, Fuyu Wu, Yunzhang Rao, Zhilian Zhao, Wei Xu, Min Han   +5 more
doaj   +1 more source

Hydrothermal leaching behavior of a complex polymetallic secondary sulfide concentrate enhanced by ultrasonication [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
Complex polymetallic secondary sulfide concentrate (CPSSC) is difficult to be efficiently utilized because of its special mineral phase structure and high lead and iron content.
Liu Q.F., Liao Y.L., Li J.L., Wu M.
doaj   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Microwave‐Assisted Technologies in Gold Extraction: A Review

Engineering Reports
This review critically examines the application of microwave‐assisted technologies in gold mining and processing, highlighting their potential to improve extraction efficiency and environmental sustainability.
B. Shahbazi
doaj   +1 more source

Monosodium Glutamate as Selective Lixiviant for Alkaline Leaching of Zinc and Copper from Electric Arc Furnace Dust

Metals, 2020
The efficacy of monosodium glutamate (MSG) as a lixiviant for the selective and sustainable leaching of zinc and copper from electric arc furnace dust was tested.
Erik Prasetyo, Corby Anderson, Fajar Nurjaman, Muhammad Al Muttaqii, Anton Sapto Handoko, Fathan Bahfie, Fika Rofiek Mufakhir   +6 more
doaj   +1 more source

Utilising differences in rooting depth to design vegetable crop rotations with high nitrogen use efficiency (NUE) [PDF]

, 2002
A number of methods involving plant or soil analysis or modelling have been developed to optimise N fertilization of vegetable crops. The methods aim at improving the NUE of each single crop, but do not really consider the crop rotation as such.
Thorup-Kristensen, K
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

The effect of temperature and digested sewage sludge cover over tailings on the leaching of contaminants from Ballangen tailings deposit

Journal of Water and Climate Change, 2021
Dry covers can be applied above tailings to reduce and prevent formation of acid mine drainage and leaching of contaminants. Efficiency of covers is affected by different parameters, of which temperature change under climate change context is one.
Jinmei Lu, Tiina Leiviskä, Ingar Walder
doaj   +1 more source

Effects of conventional and organic land use types on water protection criteria in Germany [PDF]

, 2009
The mean values and ranges of several water protection criteria were calculated for arable land, grassland and forests in Germany on the basis of research work and the literature.
Kolbe, Hartmut
core