نتایج جستجو برای: ammonium persulfate

تعداد نتایج: 26028  

Journal: :Processes 2022

The chemical surface of Santa Barbara Amorphous-15 (SBA-15) was functionalized with polyaniline (SBA-15/PA) and prepared using aniline ammonium persulfate as the modifying agent oxidant. samples were characterized by N2 physical adsorption at 77 K. SBA-15′s area 654.5 m2 g−1, changing to 254.6 g−1. total acidity basicity determined a modified Boehm’s method, point zero charge pH (pHpzc) determi...

2017
Samira Norzaee Edris Bazrafshan Babak Djahed Ferdos Kord Mostafapour Razieh Khaksefidi

Penicillin G (PG) is one of the most widely consumed antibiotics around the world. Release of PG in environment may lead to contamination of water resources. The aim of the present work is to assess feasibility of applying UV-activated persulfate process in removal of PG from aquatic environments. The study examined the effect of pH (3-11), persulfate initial concentration (0.5-3 mM), reaction ...

2015
Gholam Hossein Safari Simin Nasseri Amir Hossein Mahvi Kamyar Yaghmaeian Ramin Nabizadeh Mahmood Alimohammadi

BACKGROUND In this study, a central composite design (CCD) was used for modeling and optimizing the operation parameters such as pH, initial tetracycline and persulfate concentration and reaction time on the tetracycline degradation using sono-activated persulfate process. The effect of temperature, degradation kinetics and mineralization, were also investigated. RESULTS The results from CCD ...

Journal: :Cellulose 2022

The adsorbent for both cationic and anionic dye based on cellulose polyaniline was prepared. Cellulose purified from sugarcane bagasse through the removal of hemicellulose lignin. Aniline polymerized in emulsion state presence ammonium persulfate as an initiator. results Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM) observation determination porosity confirm...

Journal: :Bioresource technology 2012
Cheng-Gang Niu Ying Wang Xue-Gang Zhang Guang-Ming Zeng Da-Wei Huang Min Ruan Xiang-Wei Li

This study constructed a microbial fuel cell (MFC) using Fe(II)-EDTA catalyzed persulfate as the cathode solutions to decolorize Orange G (OG) and harvest electricity simultaneously. Chelated Fe(2+) could activate persulfate to generate sulfate free radicals (SO(4)(-)) which with high oxidation potential (E(0)=2.6 V) can degrade azo dyes. The influence of some important factors such as pH value...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...

Journal: :ACS applied energy materials 2021

We report a novel transparent copper-based grid electrode fabricated by microcontact printing that offers high stability toward oxidation in air. Passivation is achieved using 2.5 nm thick layer of nickel buried just below the surface copper film from which etched. This approach to passivation retains advantages associated with lithography for fabrication very fast resist deposition and compati...

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