Results 51 to 60 of about 5,219,551 (261)

A Combined Mechanochemical and Calcination Route to Mixed Cobalt Oxides for the Selective Catalytic Reduction of Nitrophenols

Molecules, 2019
Para-, or 4-nitrophenol, and related nitroaromatics are broadly used compounds in industrial processes and as a result are among the most common anthropogenic pollutants in aqueous industrial effluent; this requires development of practical remediation ...
Lorianne R. Shultz, Bryan McCullough, Wesley J. Newsome, Haider Ali, Thomas E. Shaw, Kristopher O. Davis, Fernando J. Uribe-Romo, Matthieu Baudelet, Titel Jurca   +8 more
doaj   +1 more source

Size Effect of Gold Nanoparticles in Catalytic Reduction of p-Nitrophenol with NaBH4 [PDF]

Molecules, 2013
Gold nanoparticles (Au NPs) were prepared by reducing HAuCl4 with NaBH4. Their average particle sizes could be tuned in the range of 1.7 and 8.2 nm, by adjusting the amount of NaBH4 used during synthesis. The obtained Au NPs (colloids) were then loaded onto a commercial Al2O3 support to prepare Au/Al2O3 catalysts with tunable Au particle sizes.
Lin, Chao, Tao, Kai, Hua, Dayin, Ma, Zhen, Zhou, Shenghu   +4 more
openaire   +3 more sources

One‐Step Preparation of Lanthanide‐Doped Polyurea Multicolor Microspheres for Versatile Fluorescent Applications

Advanced Science, EarlyView.
Lanthanide‐doped polyurea microspheres are prepared via a facile one‐step precipitation polymerization. They exhibit strong hydrogen‐bonding and coordination interactions with excellent properties, including multicolor emission, high quantum yield (75.3%), remarkable stability, redispersibility, and biocompatibility.
Guiyu Zhang, Xiaoxia Yu, Xinhui Wang, Xiang Zheng Kong, Xiangling Gu, Jitao Liu, Shusheng Li, Xiaoli Zhu, Lianbao Cao, Xubao Jiang   +9 more
wiley   +1 more source

Efficient remediation of nitroaromatics using polycarbazole-coated TiFe₂O₄ nanohybrids: A synergistic catalytic approach

Results in Engineering
The catalytic reduction of nitrophenol compounds to aminophenols is a key reaction for both environmental remediation and fine chemical synthesis.
Tanzeel Khan, Noor Baloch, Mary Taylor, Ufana Riaz   +3 more
doaj   +1 more source

Chiral Plasmonic Printing of Discrete Hierarchical Chiral Au@Chiral Ag Semi‐Core‐Shell Nanorods With Chiral Plasmon‐Enhanced Photocatalysis

Advanced Science, EarlyView.
Chiral plasmonic printing uses CPL as a chiral stimulus to guide asymmetric Ag deposition on chiral Au NRs seeds. Under CPL, hot carriers reduce Ag+, and the process is controlled by both the CPL handedness and the chiral SPR. L‐dc Au generates more hot electrons under LCP than RCP, while D‐dc Au shows the opposite, revealing chiral photon‐selective ...
Yaxin Cao, Haoyu Li, Mengli Wu, Shengshi Fan, Shenli Wang, Haibo Zhou, Guangchao Zheng   +6 more
wiley   +1 more source

Engineering Pd Nanostructures on Hierarchical Flower‐Like Alumina Nanosheets for the Efficient Catalytic Reduction of 4‐Nitrophenol

Nano Select
The persistence of 4‐nitrophenol (4‐NP), a toxic nitroaromatic pollutant, poses serious environmental and health risks, making its catalytic reduction to 4‐aminophenol (4‐AP) both an urgent challenge and an industrially valuable transformation.
Nihal Chelampetty Para, Amar Raj, Matti Haukka   +2 more
doaj   +1 more source

Ultrarapid and highly efficient reduction of nitroaromatic compounds using cyclodextrin MOF

Catalysis Communications, 2023
Herein, a metal-organic framework (Cu-β-CD-MOF) was prepared that incorporates copper (Cu) and beta-cyclodextrin (β-CD) via vapor diffusion. Cu-β-CD-MOF was employed as a catalyst for the reduction of various nitroaromatics (NACs) compounds viz.
Adnan Shahzaib, Shaily, Iftkhar Ahmad, Paramjit Singh, Fahmina Zafar, Yasmin Akhtar, Abeer Abdelaziz Bukhari, Nahid Nishat   +7 more
doaj   +1 more source

Design and Engineering of an Artificial Bifunctional N‐Deacetylase/N‐Sulfotransferase for the Biosynthesis of N‐Sulfated Heparosan

Advanced Science, EarlyView.
An artificial bifunctional N‐deacetylase/N‐sulfotransferase was engineered in Escherichia coli by combining screened N‐deacetylases with an NST domain. The integrated engineering strategy improved enzyme performance. The optimized enzyme efficiently converted heparosan into N‐sulfated heparosan, addressing a key bottleneck in microbial heparin ...
Xintong Xi, Ruirui Xu, Daoan Wang, Guobin Yin, Xinjing Wang, Haiqin Chen, Guocheng Du, Jian Chen, Zhen Kang   +8 more
wiley   +1 more source

High efficiency reduction of 4-nitrophenol on greenly synthesized gold nanoparticles decorated on chitosan matrix (CS-GLA/AuNPs)

Scientific Reports
An inexpensive bioinspired green approach using Saussurea costus root extract was developed to fabricate CS-GLA/AuNP catalyst for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP).
Amel Taha, Norah Alsadun
doaj   +1 more source

Green and Low‐Carbon Synthesis of Lithium Sulfide (Li2S): From Fundamental Mechanisms to Scalable Manufacturing for Next‐Generation Energy Storage

Advanced Science, EarlyView.
This review focuses on green synthesis routes for lithium sulfide (Li2S)—a key material for lithium–sulfur batteries and sulfide solid electrolytes, whose traditional carbothermal reduction remains energy‐intensive and unsustainable. Specifically examined routes include low‐temperature solid‐state reactions, magnesiothermal reduction, and solution ...
Aiping Peng, Xingtao Qi, Lingfeng Zhu, Ningrui Zhan, Yaohui Qu, Hui Li, Hai Zhang, Fan Wang, Ze Zhang, Xuewen Wang, Zhenyu Yang, Tianyi Ma   +11 more
wiley   +1 more source