Results 51 to 60 of about 6,658 (206)

Domed‐rim microbial polygons and their preservation potential

The Depositional Record, Volume 12, Issue 1, February 2026.
Microbially induced sedimentary structures (MISS) derive through interactions between minerals and microorganisms. We define a domed‐rim MISS, morphologically distinct from abiotic mud cracks and demonstrate its potential for long‐term preservation. These structures represent promising biosignatures in ancient environments on Earth and potentially Mars.
Franziska R. Blattmann, Timothy I. Eglinton, Negar Haghipour, Simon E. Rouwendaal, Stefano M. Bernasconi, John M. Rivers, Maria Dittrich, Zulfa Al Disi, Kenneth H. Williford, Fadhil Sadooni, Hamad A. Al‐Saad Al‐Kuwari, Tomaso R. R. Bontognali   +11 more
wiley   +1 more source

Photocatalytic activity of TiO2/stevensite nanocomposites for the removal of Orange G from aqueous solutions [PDF]

, 2014
TiO2/stevensite nanocomposite photocatalysts were synthesized by a solvothermal method using TiCl3/HCl as reactants and the stevensite clay mineral extract as support.
Bouna, Lahcen, Jada, Amane, Lafont, Marie-Christine, Maury, Francis, Rhouta, Benaïssa, Senocq, François   +5 more
core   +3 more sources

Engineering Crystalline Structure of In2O3 for Enhanced Electroreduction of CO2 to Formate

Carbon Neutralization, Volume 5, Issue 1, January 2026.
A series of In2O3 catalysts with unique crystallographic structures (h‐In2O3, c‐In2O3, and h/c‐In2O3) is methodically obtained for electroreduction of CO2 to formate. The h‐In2O3 catalyst demonstrates a higher Faradaic efficiency of formate and current density than c‐In2O3 and h/c‐In2O3.
Yunqi Miao, Jinglin Mu, Manfen Liang, Weisong Feng, Weijie Zhou, Xiangyang He, Lechen Diao, Mei Wu, Yang Fu, Haimei Xu, Zhichao Miao, Jin Zhou   +11 more
wiley   +1 more source

The preparation and properties of photocatalytic composites based on palygorskite/molybdenum disulfide

AIP Advances
The pollution problem resulting from advancements in science and technology is increasingly severe, particularly concerning organic pollution. Photocatalytic technology is considered one of the most effective methods for treating organic pollution due to
Weidong Tian, Limei Wu, Ritong Huang, Aiqin Wang, Yushen Lu, Ning Tang, Lili Gao   +6 more
doaj   +1 more source

Features of bleaching cottonseed oil with local adsorbents [PDF]

E3S Web of Conferences
The article presents research data on the process of adsorption refining (bleaching) of cottonseed oil, which differs from other vegetable oils in its complex composition and the presence of gossypol.
Suvanova Fayoza, Kholmurodova Zubayda, Saidov Abdi   +2 more
doaj   +1 more source

Using [delta] ph as a geochemical index of illite neoformation in saprolite [PDF]

, 2008
Sal pH is routinely measured for agronomic purposes. When the difference between KCI pH and H2O pH, or ApH, yields positive values, it is used by soil scientists as a classification criterion for identifying anionic subgroups according to the Soil ...
Bourgeon, Gérard, Bétard, François, Caner, Laurent, Gunnell, Yanni   +3 more
core  

A New Application for Salted Water-Based Fluids with Palygorskite: Formulation Designing for Temporary Plug and Abandonment Operations of Petroleum Wells

Applied Sciences
Palygorskite has shown satisfactory performance in salted water-based fluids, especially as a rheological agent. However, this type of formulation has been used in the petroleum industry only in well drilling operations.
Ruth Luna do Nascimento Gonçalves, Anna Carolina Amorim Costa, Mário César de Siqueira Lima, Karine Castro Nóbrega, Waleska Rodrigues Pontes da Costa, Laura Rafaela Cavalcanti de Oliveira, Renalle Cristina Alves de Medeiros Nascimento, Michelli Barros, Tiago Almeida de Oliveira, Luciana Viana Amorim   +9 more
doaj   +1 more source

Natural Palygorskite as an Industrial Dye Remover in Single and Binary Systems [PDF]

Materials Research, 2016
Layered or fibrous clay minerals are used as adsorbents because they have good performance to remove inorganic and organic species. In this work, a Brazilian fibrous clay mineral was applied to remove Remazol Yellow GR industrial dye from simple and ...
Marcos Pereira da Silva, Maria do Socorro Ferreira Santos, Maria Rita Moraes Chaves Santos, Luiz de Sousa Santos Júnior, Maria Gardênnia da Fonseca, Edson Cavalcanti da Silva Filho   +5 more
doaj   +1 more source

The difference of thermal stability between Fe-substituted palygorskite and Al-rich palygorskite

Journal of Thermal Analysis and Calorimetry, 2012
Sedimentary palygorskite (SP) and hydrothermal palygorskite (HP) were characterized by XRF, TG/DSC, and XRD. The total iron and dissociative iron in palygorskite were detected using spectrophotometry. The results showed that about 3.57 wt% of Fe2O3 was detected in SP in contrast with 0.4 wt% in HP. SP was a Fe-substituted palygorskite, and HP was an Al-
Liu, Haibo, Chen, Tianhu, Chang, Dongyin, Chen, Dong, Qing, Chengsong, Xie, Jingjing, Frost, Ray   +6 more
openaire   +2 more sources

Used Frying Oil Decolorization Study Using Eco‐Friendly Nano‐Clay Adsorbent: Process Optimization by RSM and ANFIS Approaches

ChemistrySelect, Volume 11, Issue 2, 15 January 2026.
This study explores sustainable waste frying oil treatment using Fuller's earth and optimizes the decolorization process through RSM and ANFIS modeling. A comparative assessment highlights the prediction accuracy and applicability of both tools for adsorption‐based purification and resource recovery.
Anietie O. Etim, Paul Musonge, Joseph K. Bwapwa   +2 more
wiley   +1 more source