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Dissertations / Theses on the topic 'Nitrophenol reduction'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Al-Naji, Majd, Michael Goepel, Anca Roibu, and Roger Gläser. "Reduction of p-Nitrophenol to p-Aminophenol over supported monometallic catalysts as a model reaction for mass-transfer investigations: Reduction of p-Nitrophenol to p-Aminophenol over supportedmonometallic catalysts as a model reaction for mass-transferinvestigations." Diffusion fundamentals 24 (2015) 2, S. 1, 2015. https://ul.qucosa.de/id/qucosa%3A14515.

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2

Al-Naji, Majd, Michael Goepel, Anca Roibu, and Roger Gläser. "Reduction of p-Nitrophenol to p-Aminophenol over supported monometallic catalysts as a model reaction for mass-transfer investigations." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-197993.

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3

Wu, Zhibin, Xingzhong Yuan, Hua Zhong, et al. "Enhanced adsorptive removal of p-nitrophenol from water by aluminum metal–organic framework/reduced graphene oxide composite." NATURE PUBLISHING GROUP, 2016. http://hdl.handle.net/10150/614746.

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In this study, the composite of aluminum metal-organic framework MIL-68(Al) and reduced graphene oxide (MA/RG) was synthesized via a one-step solvothermal method, and their performances for pnitrophenol (PNP) adsorption from aqueous solution were systematically investigated. The introduction of reduced graphene oxide (RG) into MIL-68(Al) (MA) significantly changes the morphologies of the MA and increases the surface area. The MA/RG-15% prepared at RG-to-MA mass ratio of 15% shows a PNP uptake rate 64% and 123% higher than MIL-68(Al) and reduced graphene oxide (RG), respectively. The hydrogen b

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4

Kwon, Beatsam. "Catalytic reduction of organic pollutants using supported metal nanoparticles." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23190/.

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Metal nanoparticle catalysts have in the last decades been extensively researched for their enhanced performance compared to their bulk counterpart. Properties of nanoparticles can be controlled by modifying their size and shape as well as adding a support and stabilizing agent. In this study, preformed colloidal gold nanoparticles supported on activated carbon were tested on the reduction of 4-nitrophenol by NaBH4, a model reaction for evaluating catalytic activity of metal nanoparticles and one with high significance in the remediation of industrial wastewaters. Methods of wastewater remedia

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5

Poudyel, Ghimire Pramila. "DEVELOPMENT OF PHENOLIC RESIN-DERIVED CARBONS AND THEIR COMPOSITES WITH TAILORED COMPOSITION, POROSITY AND MORPHOLOGY." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent157384419976016.

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6

Sandelier, Matthew James. "Tandem reduction/cyclization of o-nitrophenyl propargyl alcohols--a novel synthesis of 2- & 2,4-disubstituted quinolines and application to the synthesis of streptonigrin." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8471.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Chemistry. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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7

Iben, Ayad Anas. "Développement de nanocatalyse en flux continu : scale-up de la valorisation de la biomasse." Electronic Thesis or Diss., Compiègne, 2021. http://www.theses.fr/2021COMP2655.

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Les objectifs de ce travail de thèse étaient le développement de nouvelles Pd NPs (nanocatalyseurs) par des méthodes vertes et leur application en flux continu à la valorisation de dérivés de la biomasse. Nous avons d'abord développé la synthèse de nanocatalyseurs constitués de NPs de Pd, qui sont stabilisés avec des ligands oxygénés, la famille de l'acide hydroxyl méthylène bisphosphonique (HMBP). Ces molécules nous ont permis de maintenir les solutions de NPs de Pd stables dans l'eau et sous conditions aérobies à 4 °C pendant une période de temps supérieure à 6 mois après leur préparation sa

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8

Soeira, Luciana Serra. "Estudo da degradação do p-nitrofenol por ferro de valência zero: avaliação de processos redutivos e oxidativos." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/46/46133/tde-30112007-113224/.

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Neste trabalho estudou-se o uso do ferro de valência zero em meio redutivo e oxidativo, a fim de desenvolver um processo que promova tanto a degradação quanto a mineralização de substâncias orgânicas com centros deficientes de elétrons, como, por exemplo, espécies que contêm o grupo nitro ligado ao anel aromático. O processo de degradação empregando-se ferro metálico, em ambos os meios estudados, apresentou grande eficiência no tratamento do p-nitrofenol, utilizado como poluente modelo. Para soluções contendo concentração inicial de p-nitrofenol igual a 100 mg L-1, tanto para o meio redutivo q

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9

Yeh, Yu-Lun, and 葉佑倫. "Nitrogen CNTs-Pt nanoparticles for Catalytic Reduction of 4-Nitrophenol (4-NP)." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/tb5k65.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>106<br>Heteroatom doping carbon materials can endow many properties. The improved features can be widely applied in different field. In this thesis, we follows our laboratory has previously developed an effective method to doping boron and nitrogen into the carbon nanotubes under atmospheric pressure, by controlling the temperature to achieve different levels of nitrogen content, and deposit the metal nanoparticles with high specific surface area and high activity on the tubes. The formation of nanocomposite as a catalyst to apply the reduction reaction of 4-nitrophe

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10

Lin, Ting Yi, and 林庭伊. "Synthesis of Fe3O4−Au nanocomposites and Application in 4-Nitrophenol Catalytic Reduction Reaction." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/72035744301585256462.

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碩士<br>東海大學<br>化學系<br>99<br>There is great interest in the development of nanoparticles that combine multiple function or properties not obtainable in individual materials. Fe3O4 nanoparticles were initially prepared by co-precipitation method, and with the average diameter around 7 nm. And subsequently immobilization of Au seeds onto the Fe3O4 nanoparticles. The nanoparticle loading needs prevent aggregation. The surface of the Fe3O4 particles was modified with organosilane molecules to generate an amine terminated surface. Therefore Au can be immobilization by N−Au bonding. The as-prepared Fe

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11

LAI, YI-HUSAN, and 賴宜璇. "Electroactive Polyamide Doped with Gold and Silver Applied to Catalytic Reduction of 4-Nitrophenol." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5s9nfh.

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碩士<br>弘光科技大學<br>化妝品應用研究所<br>106<br>Nitro-aromatics are the most common substance of the wastewater produced by farmers and industry. Among them, 4-nitrophenol tends to remain in the soil and water sources due to environmental stability and is not easily eliminated, and its toxicity can injure the central nervous system of a human and lead to neuropathy. Therefore, detecting and eliminating 4-nitrophenol has become an important work. There are some studies have researched biodegradable or adsorption method to eliminate 4-nitrophenol. In this study, the electroactive polymer - electroactive poly

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12

Wu, Chang-Hsuan, and 吳長軒. "Synthesis of Magnetic Cobalt-Carbon Composites and their Applications as Catalysts for Reduction of p-nitrophenol." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/50587044954019705218.

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碩士<br>國立中興大學<br>環境工程學系所<br>105<br>Metal was used for plenty of catalitic experiments in recent years. If metal ions are only added to a batch reaction tank for reduction reaction. It will face a difficult chanllenge for separating metal ions and solution after the reaction was once balanced. This will cause second damage for environment. According to our best knowledge, we can conclude three ways to deal with the separated problem such as Supported on template, Coordination and Core-Shell. Thus, we pursue to develop a simple and save time synthesis method in this study. And which the method of

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13

Hsia, Nu-An, and 夏汝安. "Synthesis of Ag/Ni Alloy Nanoparticles Confined in Carboxylic Acid Functionalized Cubic SBA-1 Mesoporous Silica Nanoparticle as Efficient Catalysts for Reduction of 4-Nitrophenol and Degradation Reactions." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ymkq4n.

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碩士<br>國立中央大學<br>化學學系<br>105<br>Silver nanoparticles (Ag NPs) with a particle size about 3 nm are successfully confined within the cage-type mesopores of cubic SBA-1 mesoporous silica nanoparticles (MSNs) functionalized with carboxylic acid (-COOH) groups (CS-1B-x). Under alkaline condition of pH 9, the –COOH groups deprotonate and become -COO- groups, and thus can effectively interact with the Ag+ ions and allow facile fabrication of Ag NPs. We also used Ag+ and Ni2+ to synthesis Ag/Ni alloy incorporated in CS-1B-10. The materials were characterized by powder X-ray diffraction (XRD), solid-s

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14

You, Jiun-Guo, and 游俊國. "(1)Platnium Nanoparticles as Oxidase and Peroxidase Mimic and Their Application in Heparin Sensing；(2) Role of Poly(diallyldimethylammonium chloride) in the Catalytic Reduction of 4-Nitrophenol by Metal Nanoparticle." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/u6j6ks.

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碩士<br>國立中山大學<br>化學系研究所<br>103<br>(a) Platnium Nanoparticles as Oxidase and Peroxidase Mimic and Their Application in Heparin Sensing In our first study, the Pt-NPs were synthesized using an one-pot method and were used to catalyze 2,2''-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid (ABTS), 3,3'',5,5''-Tetramethylbenzidine (TMB), and dopamine under oxygen. The size of Pt- NPs are approximately 6±1 nm. By using TMB as substrate, the Km and Vmax were obtained 0.9 mM and 0.0042 μM/s, respectively. In order to investigative the process of electrons transfer a

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15

Zong-Han-Shen and 沈宗翰. "Development of Pt-alloy/CMK-8 Composite Catalyst and its Application for 4-NP(4-nitropheno, 4-NP) Reduction." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/2zyzyy.

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碩士<br>國立勤益科技大學<br>化工與材料工程系<br>106<br>KIT-6 was synthesized by hydrothermal method to synthesize KIT-6 with different pore sizes by changing the temperature. However, the specific surface area decreased with the increase of temperature. The ordered mesoporous carbon CMK-8 was replicated by KIT6-40°as a template. The surface area was 1155 m2/g, and the platinum precursor was prepared in the pore cavity of CMK-8 by impregnation. It is applied to the reduction of p-nitrophenol (4-nitrophenol, 4-NP) to p-aminophenol (4-aminophenol, 4-AP), and the effects of the addition of different materials (Ag,

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