Results 71 to 80 of about 4,825,915 (329)

Tuning the electronic and chemisorption properties of hexagonal MgO nanotubes by doping - Theoretical study

, 2018
Oxide materials offer a wide range of interesting physical and chemical properties. Even more versatile behavior of oxides is seen at the nanoscale, qualifying these materials for a number of applications.
Johansson, Börje, Jovanović, Aleksandar, Pašti, Igor A., Petković, Milena, Skorodumova, Natalia V.   +4 more
core   +1 more source

Surfactant Adsorption Isotherms: A Review

ACS Omega, 2021
The need to minimize surfactant adsorption on rock surfaces has been a challenge for surfactant-based, chemical-enhanced oil recovery (cEOR) techniques.
Shams Kalam, S. Abu-Khamsin, M. Kamal, S. Patil   +3 more
semanticscholar   +1 more source

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

Introducing the new model of chemical adsorption for heavy metals by Jacobi activated carbon adsorbents, Iranian activated carbon and blowy sand

Case Studies in Chemical and Environmental Engineering, 2022
In the adsorption process, the adsorbed elements are established in different layers on the adsorbent surface. The first layer is placed on the adsorbent surface due to the direct contact and covalent bonding (chemical adsorption) and the other layers ...
Shayan Shamohammadi, Mostafa Khajeh, Ruhollah Fattahi, Mostafa Kadkhodahosseini   +3 more
doaj   +1 more source

A Review on the Adsorption Isotherms and Design Calculations for the Optimization of Adsorbent Mass and Contact Time

ACS Omega, 2023
Adsorption is a widely used chemical engineering unit operation for the separation and purification of fluid streams. Typical uses of adsorption include the removal of targeted pollutants like antibiotics, dyes, heavy metals, and other small to large ...
Orla P. Murphy, M. Vashishtha, P. Palanisamy, K. Kumar   +3 more
semanticscholar   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Chemical Adsorption of Nitrogen Dioxide with an Activated Carbon Adsorption System [PDF]

Aerosol and Air Quality Research, 2019
ABSTRACT Nitrogen dioxide (NO2) is a pollutant that directly harm the human respiratory system, lead to inflammation, as well as to form the secondary aerosol pollutants. The main NO2 sources, combustion or thermal processes, were well controlled. However, the metal etching operation in semiconductor industry emits flue gases with reddish-brown NO2 ...
Mei-Ling Fang, Hsiao-Yu Chang, Chih-Hsiang Chen, Sheng-Lun Lin, Yen-Kung Hsieh, Ming-Shean Chou, Cheng-Yu Chang   +6 more
openaire   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Evaluation of Complexation Ability Using a Sensor Electrode Chip Equipped with a Wireless Screening System

Sensors, 2012
We fabricated an electrode chip with a structure coated by an insulation layer that contains dispersed SiO₂ adsorbent particles modified by an amino-group on a source-drain electrode.
Takaaki Isoda, Noriyoshi Yamauchi, Hikaru Sato, Ikuko Urushibara   +3 more
doaj   +1 more source

A review on experimental chemically modified activated carbon to enhance dye and heavy metals adsorption

Cleaner Engineering and Technology, 2022
Effective and low-cost removal of dye and heavy metals from wastewater still is a great challenge for researchers. Adsorption using activated carbon is widely used in removing these toxic pollutants.
Marzia Sultana, Mahbub Hasan Rownok, Meherunnesa Sabrin, Md Hafezur Rahaman, S.M.Nur Alam   +4 more
doaj   +1 more source