Results 81 to 90 of about 1,039,813 (285)

Sustainable Access to N‐Heterocycles: One‐Pot Cascade Synthesis of Pyrroles From Bio‐Derived Furans

open access: yesAngewandte Chemie, EarlyView.
Highly dispersed platinum (Pt) clusters on Brønsted acid‐rich HY zeolite enable a one‐pot cascade conversion of bio‐derived furans and nitroarenes into pyrroles. Highly dispersed Pt sites ensure selective nitro hydrogenation, while Pt nanoparticles promote undesired over‐hydrogenation.
Haifeng Qi   +5 more
wiley   +2 more sources

Effect of zeolites on the reduction of the ecotoxicity of carbamazepine in the environment

open access: yesEcotoxicology and Environmental Safety
In this study, the impact of calcination of zeolites on the ecotoxicity of carbamazepine solutions in two matrices, water and synthetic sewage, was assessed.
Aleksandra Bogusz   +4 more
doaj   +1 more source

Adsorption Reaction and Kinetics of Zn on Zeolite Mineral Comparing with Two Calcareous Soils

open access: yesMaǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ, 2023
A laboratory experiment was conducted to study zinc adsorption at eight concentrations (0, 25, 50, 100, 150, 200, 250 and 300 mg L-1) by using ZnSO4.7H2O.
Maysam A. R. Al-Mashhdany   +1 more
doaj  

Interface‐Enhanced Electrochemical Epoxidation Over a Core‐Shell Nanozeolite TS‐1@Mn‐N‐C Catalyst

open access: yesAdvanced Science, EarlyView.
Core–shell interface of TS‐1@Mn‐N‐C enables in situ generation of high‐concentration H2O2 and its spatially confined activation toward epoxidation‐active η‐Ti‐OOH species, leading to highly efficient and continuous electrochemical epoxidation. The work successfully addresses the key challenge of inefficient mass transfer and slow kinetics caused by ...
Wenbiao Zhang   +7 more
wiley   +1 more source

Computational and Data‐Driven Strategies for Lignocellulosic Biomass Valorization: From Multiscale Modeling to Digitalized Biorefinery Design

open access: yesAdvanced Science, EarlyView.
This Review critically connects structural recalcitrance, molecular modeling, solvent and catalyst design, pyrolysis, machine learning, reactor simulation, and FAIR digital infrastructure. Emphasis is placed on experimentally validated information transfer across scales, uncertainty and applicability domains, and the recycle, durability, techno ...
Abdullahi Bello Umar   +9 more
wiley   +1 more source

Synthesis of Zeolite Pellets From Natural Zeolite and Starch as Adsorbent For Fuel Grade Bioethanol Production [PDF]

open access: yes, 2012
Bioethanol is one of the alternative energy that needs to be kept under review, in terms of raw material sources, the fermentation and purification processes. In terms of purification process in order to standardize to be fuel grade, It is how to get dry
Anwar , Ma’ruf,, Neni , Damajanti
core   +1 more source

THE EFFECT OF SYNTHETIC ZEOLITES ON SENSITIVITY AND STABILITY OF URIC ACID BIOSENSOR USING CYCLE VOLTAMETRY METHOD

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2018
The synthesis of synthetic zeolite modified biosensor material has been carried out to detect uric acid. This study aims to look at the effect of synthetic zeolite on uric acid biosensor material on sensor stability and sensitivity. The biosensor was use
Iza Faizah   +2 more
doaj  

How small changes to methylated piperidinium cations impact the synthesis of zeolite SSZ‐39

open access: yesAIChE Journal, EarlyView.
Abstract Here we report a synthesis study of SSZ‐39 with four different organic structure directing agents (OSDA). The goal was to determine how subtle changes to the OSDA architecture impact crystallization kinetics, material composition, and other properties.
Onyinyechukwu Ukagha, Daniel F. Shantz
wiley   +1 more source

Phase Transformation of Zeolite P to Y and Analcime Zeolites due to Changing the Time and Temperature

open access: yesJournal of Spectroscopy, 2013
In the present study, the synthesis of template free zeolite P under hydrothermal condition was investigated. The effects of parameters such as Si/Al ratios (3–45), crystallization temperatures (80–160°C), and cry (40–60 h) on the synthesis of zeolite P ...
Seyed Naser Azizi   +2 more
doaj   +1 more source

Remediation of amoxicillin-contaminated water using zeolite from coal bottom ash

open access: yesSains Tanah: Journal of Soil Science and Agroclimatology
The contamination of antibiotics in water bodies has increased significantly in recent years. Various treatments, including adsorption, have been sought, but most include expensive sorbent material with low efficiency.
Galuh Yuliani   +6 more
doaj   +1 more source

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