TriMOF synergized on the surface of activated carbon produced from pineapple leaves for the environmental pollutant reduction and oxygen evolution process

Chemosphere ◽  
2021 ◽  
pp. 131893
Author(s):  
Shiva Kumar Arumugasamy ◽  
Gayathri Chellasamy ◽  
Sankar Sekar ◽  
Sejoon Lee ◽  
Saravanan Govindaraju ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Oxygen Evolution ◽  
Environmental Pollutant ◽  
Evolution Process ◽  
Pollutant Reduction ◽  
Pineapple Leaves

Thermally Activated Carbon-Nitrogen Vacancies in Double-Shelled NiFe Prussian Blue Analogue Nanocages for Enhanced Electrocatalytic Oxygen Evolution

2021 ◽  
Author(s):  
Miaomiao Jiang ◽  
Xiaoming Fan ◽  
Shuai Cao ◽  
Zihan Wang ◽  
Zeheng Yang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Prussian Blue ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Frame Structures ◽  
Prussian Blue Analogue ◽  
Prussian Blue Analogues ◽  
Thermally Activated ◽  
Alkaline Conditions ◽  
Nitrogen Vacancies

Prussian blue analogues (PBAs) with controllable frame structures and anchored defects represent a promising electrocatalyst for oxygen evolution reaction (OER) in alkaline conditions. Herein, double-shelled NiFe PBAs nanocages have been...

Pineapple leaves based activated carbon for efficient removal of reactive black 5 in aqueous

2021 ◽  
Author(s):  
Nur Aien Fatini Abd Latif ◽  
Abu Hassan Nordin ◽  
Norzita Ngadi ◽  
Walid Nabgan ◽  
Mazura Jusoh ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Reactive Black 5 ◽  
Efficient Removal ◽  
Pineapple Leaves

scholarly journals Antibiotic Removal from Aquatic Environment with Activated Carbon Produced from the Pumpkin Seeds

2021 ◽  
Author(s):  
İhsan Alacabey
Keyword(s):  
Activated Carbon ◽  
Photoelectron Spectroscopy ◽  
Environmental Pollutant ◽  
Suitable Model ◽  
Pumpkin Seed ◽  
Adsorption Interaction ◽  
Pumpkin Seeds ◽  
Ft Ir ◽  
Optimized Conditions

Antibiotics are among the most critical environmental pollutant drug groups. One of the methods used to remove this pollution is adsorption. In this study, activated carbon was produced from the pumpkin seed shell and then modified with KOH. This adsorbent obtained was used in the re-moval of ciprofloxacin from aqueous systems. Fourier Transform-Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), elemental, X-ray Photoelectron Spectroscopy (XPS), Brunauer-Emmett-Teller (BET) and Zeta analyzes were used for the characterization of the ad-sorbent. In particular, the surface area was found to be a very remarkable value of 2730 m2/g. The conditions of the adsorption experiments were optimized based on interaction time, adsorbent amount, pH and temperature. Over 99% success has been achieved in removal works carried out under the most optimized conditions. In addition, it was determined that the Langmuir isotherm is the most suitable model for the adsorption interaction.

scholarly journals Excellent Oxygen Evolution Reaction of Activated Carbon-Anchored NiO Nanotablets Prepared by Green Routes

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1382 ◽  
Author(s):  
Sankar Sekar ◽  
Deuk Kim ◽  
Sejoon Lee
Keyword(s):  
Activated Carbon ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Green Energy ◽  
Energy Technology ◽  
High Electrical Conductivity ◽  
Nio Nanoparticles ◽  
Electrochemically Active ◽  
Average Size

A sustainable and efficient electrocatalyst for the oxygen evolution reaction (OER) is vital to realize green and clean hydrogen production technology. Herein, we synthesized the nanocomposites of activated carbon-anchored nickel oxide (AC-NiO) via fully green routes, and characterized their excellent OER performances. The AC-NiO nanocomposites were prepared by the facile sonication method using sonochemically prepared NiO nanoparticles and biomass-derived AC nanosponges. The nanocomposites exhibited an aggregated structure of the AC-NiO nanotablets with an average size of 40 nm. When using the nanotablets as an OER catalyst in 1 M KOH, the sample displayed superb electrocatalytic performances, i.e., a substantially low value of overpotential (320 mV at 10 mA/cm2), a significantly small Tafel slope (49 mV/dec), and a good OER stability (4% decrease of overpotential after 10 h). These outstanding OER characteristics are considered as attributing to the synergetic effects from both the ample surface area of the electrochemically active NiO nanoparticles and the high electrical conductivity of the AC nanosponges. The results pronounce that the fully ecofriendly synthesized AC-NiO nanotablets can play a splendid role as high-performance electrocatalysts for future green energy technology.

Materials for Electrocatalysis of Oxygen Evolution Process in PEM Water Electrolysis Cells

2019 ◽  
Vol 25 (23) ◽  
pp. 103-117 ◽  
Author(s):  
Reidar Tunold ◽  
Aaron T. Marshall ◽  
Egil Rasten ◽  
Mikhail Tsypkin ◽  
Lars-Erik Owe ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Water Electrolysis ◽  
Evolution Process ◽  
Electrolysis Cells

Zn-MOF decorated Bio Activated Carbon for photocatalytic degradation, oxygen evolution and reduction catalysis

2021 ◽  
pp. 126720
Author(s):  
Saravanan Govindaraju ◽  
Shiva Kumar Arumugasamy ◽  
Gayathri Cehllasamy ◽  
Kyusik Yun
Keyword(s):  
Activated Carbon ◽  
Photocatalytic Degradation ◽  
Oxygen Evolution

Preparation and Properties of Heat Durable N:TiO2 Antibacterial Nano-Ceramics

2011 ◽  
Vol 477 ◽  
pp. 453-457
Author(s):  
Guang Lei Zhang ◽  
Guo Qiang Qin ◽  
Jin Hui Yang
Keyword(s):  
Visible Light ◽  
Sol Gel ◽  
Environmental Pollutant ◽  
Pure Tio2 ◽  
Precipitation Method ◽  
Composite Powders ◽  
Nano Tio2 ◽  
Pollutant Reduction ◽  
Co Precipitation ◽  
Micro Morphology

As a new type of environmental pollutant reduction technology, semiconductor nano-TiO2 photocatalytic technology has attracted widely attention in recent years. In order to overcome the disadvantage of pure TiO2 photocatalyst in lower utilization of solar energy and heat durability, the sol-gel method followed by co-precipitation method was employed to synthesize ZnO packed N:TiO2 nano-powders, and EDS, XRD, SEM, UV-VIS analysis as well as detection of degradation rate of methyl orange were used to characterize the composition, phase, micro-morphology and the photocatalytic properties of the nano-powders. The results showed that the excitation band of the composite powders extended from the UV region to the visible light zone, indicating a remarkable improvement of the photocatalytic activities of TiO2 composite powders under both visible light and UV irradiation. After calcined at 950°C, the composite powders still remained mixed crystal structures of anatase and rutile phases with the diameter of the composite powder being about 60nm. After coated with ZnO, the heat durability of the N-doped nano-TiO2 composite powders was significantly improved 250°C.

Index System of Water Environment Capacity Promotion in Jilin Province in China through Ways of Structure, Engineering and Supervision

2015 ◽  
Vol 1092-1093 ◽  
pp. 1155-1159 ◽  
Author(s):  
Yang Li ◽  
Li Zhao ◽  
Yu Li
Keyword(s):  
Index System ◽  
Water Environment ◽  
Environmental Pollutant ◽  
Jilin Province ◽  
Environment Capacity ◽  
Target Layer ◽  
Pollutant Reduction ◽  
Water Administration ◽  
Water Environment Capacity ◽  
Structure Engineering

In this paper, according to the principles of representative and pertinence, comparability and measurable, independence and so forth, the index system of water environment capacity promotion in Jilin Province is established based on ways of structure, engineering and supervision, which consist of 1 target layer, 3 primary criterion layers, 6 secondary criterion layers and 16 concrete index layers, taking into account need of water environmental pollution control management and concept of environmental pollutant reduction, in order to provide reference for local water administration.

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