Hydrophilic hollow carbon nanocapsules for high-capacity adsorptive removal of cationic dyes in aqueous systems

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 6123-6130 ◽  
Author(s):  
Ray-Tung Chiang ◽  
Ray-Kuang Chiang ◽  
Fuh-Sheng Shieu
Keyword(s):  
Adsorption Capacity ◽  
Organic Dyes ◽  
High Capacity ◽  
Maximum Adsorption Capacity ◽  
High Adsorption ◽  
Adsorptive Removal ◽  
High Maximum ◽  
Carbon Nanocapsules ◽  
Hollow Carbon ◽  
Hollow Carbon Nanocapsules

The hollow carbon nanocapsules prepared from Ni3C nanoparticles show a high adsorption rate and a high maximum adsorption capacity to organic dyes in water solutions.

Ultra-high performance of Li/Na ion batteries using N/O dual dopant porous hollow carbon nanocapsules as an anode

2019 ◽  
Vol 7 (18) ◽  
pp. 11117-11126 ◽  
Author(s):  
Linlin Wang ◽  
Bo Lu ◽  
Saisai Wang ◽  
Wei Cheng ◽  
Yufeng Zhao ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
High Capacity ◽  
Cycling Stability ◽  
Carbon Nanocapsules ◽  
Hollow Carbon ◽  
Sodium Storage ◽  
Hollow Carbon Nanocapsules

N/O dual dopant porous carbon nanocapsules simultaneously attain ultrafast lithium and sodium storage with both a high capacity and an ultralong cycling stability.

Iron catalyzed synthesis of hollow carbon nanocapsules by resistive heating

2009 ◽  
Vol 18 (10) ◽  
pp. 1253-1257 ◽  
Author(s):  
Tokushi Kizuka ◽  
Jun Fujii ◽  
Kun'ich Miyazawa
Keyword(s):  
Resistive Heating ◽  
Carbon Nanocapsules ◽  
Hollow Carbon ◽  
Hollow Carbon Nanocapsules

scholarly journals Revealing the role of the 1T phase on the adsorption of organic dyes on MoS2 nanosheets

RSC Advances ◽  
2019 ◽  
Vol 9 (49) ◽  
pp. 28345-28356 ◽  
Author(s):  
Asmaa M. Omar ◽  
Ossama I. Metwalli ◽  
Mohamed R. Saber ◽  
Gomaa Khabiri ◽  
Mohamed E. M. Ali ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Active Sites ◽  
Organic Dyes ◽  
Carboxyl Groups ◽  
Mos2 Nanosheets ◽  
High Adsorption ◽  
Strong Binding ◽  
High Adsorption Capacity

The high adsorption capacity of dyes onto the 1T-rich MoS2 samples is due to the strong binding between the hydroxide/carboxyl groups and the 1T active sites. The capacity can be tuned by controlling the ratio between 1T and 2H phases of MoS2 nanosheets.

scholarly journals CuAl LDH/Rice Husk Biochar Composite for Enhanced Adsorptive Removal of Cationic Dye from Aqueous Solution

2020 ◽  
Vol 15 (2) ◽  
pp. 525-537 ◽  
Author(s):  
Neza Rahayu Palapa ◽  
Tarmizi Taher ◽  
Bakri Rio Rahayu ◽  
Risfidian Mohadi ◽  
Addy Rachmat ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Surface Area ◽  
Malachite Green ◽  
Rice Husk ◽  
Low Cost ◽  
Bet Surface Area ◽  
Maximum Adsorption Capacity ◽  
Cationic Dye ◽  
X Ray ◽  
Adsorptive Removal

The preparation of CuAl LDH and biochar (BC) composite derived from rice husk and its application as a low-cost adsorbent for enhanced adsorptive removal of malachite green has been studied. The composite was prepared by a one-step coprecipitation method and characterized by X-ray Diffraction (XRD), Fourier Transform Infra Red (FTIR), Brunauer-Emmett-Teller (BET), and Scanning Electron Microscopy - Energy Dispersive X-ray (SEM−EDX). The result indicated that CuAl LDH was successfully incorporated with the biochar that evidenced by the broadening of XRD peak at 2θ = 24° and the appearance of a new peak at 1095 cm−1 on the FTIR spectra. The BET surface area analysis revealed that CuAl/BC composite exhibited a larger surface area (200.9 m2/g) that the original CuAl LDH (46.2 m2/g). Surface morphological changes also confirmed by SEM image, which showed more aggregated particles. The result of the adsorption study indicated the composite material was efficient in removing malachite green with Langmuir maximum adsorption capacity of CuAl/BC reaching 470.96 mg/g, which is higher than the original CuAl LDH 59.523 mg/g. The thermodynamic analysis suggested that the adsorption of malachite green occurs spontaneously (ΔG < 0 at all tested temperature) and endothermic nature. Moreover, the CuAl/BC composite showed strong potential as a low-cost adsorbent for cationic dye removal since it showed not only a high adsorption capacity but also good reusability. Copyright © 2020 BCREC Group. All rights reserved

scholarly journals Ce-doped UiO-67 nanocrystals with improved adsorption property for removal of organic dyes

RSC Advances ◽  
2019 ◽  
Vol 9 (47) ◽  
pp. 27674-27683 ◽  
Author(s):  
Xue Dong ◽  
Yongcen Lin ◽  
Yuqin Ma ◽  
Lang Zhao
Keyword(s):  
Adsorption Capacity ◽  
Hydrothermal Method ◽  
Negative Charge ◽  
Organic Dyes ◽  
Adsorption Property ◽  
Cationic Dyes ◽  
High Adsorption ◽  
One Step ◽  
High Adsorption Capacity

The Ce-doped UiO-67 nanocrystals were successfully synthesized via a one-step hydrothermal method. Ce doping increases the negative charge on the surface of the material, thus the adsorbent exhibits high adsorption capacity to cationic dyes.

Macroporous cellulose/carbon nanotube microspheres prepared by surfactant micelles swelling strategy for rapid and high-capacity adsorption of bilirubin

2021 ◽  
Author(s):  
Liangzhi Qiao ◽  
Kaifeng Du
Keyword(s):  
Carbon Nanotube ◽  
Adsorption Capacity ◽  
High Capacity ◽  
Diffusion Path ◽  
Adsorption Kinetic ◽  
Rabbit Serum ◽  
High Adsorption ◽  
Surfactant Micelles ◽  
Formidable Challenge ◽  
High Adsorption Capacity

Abstract It remains a formidable challenge to construct high-performance haemoperfusion adsorbents with fast adsorption kinetic and high adsorption capacity for efficiently removing bilirubin from human blood. In this work, we report a facile yet efficient strategy to manufacture lysine-modified macroporous cellulose/carbon nanotube microspheres (LMCMs) by surfactant micelles swelling strategy followed by modification with lysine. The macroporous structure not only provides wide channels for fast mass transfer, but also shortens the diffusion path into meso/micropores, increasing the accessibility of mesopores and micropores. The experimental results reveal that LMCMs can remove bilirubin with fast adsorption kinetic (> 90% of its equilibrium uptake within 2h) and high adsorption capacity of 338.14 mg/g. More importantly, the adsorbent can remove about 79% of bilirubin in rabbit serum, and the bilirubin concentration decreases from 213.36 mg/L to small than 45.78 mg/L within 2h, indicating a very appealing application prospect.

Structure of hollow carbon nanocapsules synthesized by resistive heating

Carbon ◽  
2009 ◽  
Vol 47 (1) ◽  
pp. 138-144 ◽  
Author(s):  
Tokushi Kizuka ◽  
Ryoei Kato ◽  
Kun’ichi Miyazawa
Keyword(s):  
Resistive Heating ◽  
Carbon Nanocapsules ◽  
Hollow Carbon ◽  
Hollow Carbon Nanocapsules
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