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@article{ART001259666},
author={Ming-Liang Chen and Oh Won Chun},
title={Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity},
journal={Carbon Letters},
issn={1976-4251},
year={2007},
volume={8},
number={2},
pages={108-114}

TY - JOUR
AU - Ming-Liang Chen
AU - Oh Won Chun
TI - Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity
JO - Carbon Letters
PY - 2007
VL - 8
IS - 2
PB - Korean Carbon Society
SP - 108
EP - 114
SN - 1976-4251
AB - In this work, activated carbon (AC) after HNO3 modification was used as the support during the production of supportedTiO2 to increase the high deposition efficiency and the photocatalytic activity. The results of N2 adsorption showed that theBET surface area of samples decreased with an increasing of the concentration of HNO3 due to the penetration of TiO2. FromXRD data, a single crystal structure of anatase peak was observed in diffraction patterns for the AC coated with titaniumcomplexes. From the SEM results, almost all particles were aggregated with each other at the carbon surface and AC wascovered with TiO2 particles in all of the samples. The EDX spectra show the presence of C, O, Ti and other elements. It wasalso observed a decreasing of amount of C content with increasing Ti and O content from the EDX. The results of FT-IRrevealed that the modified AC contained more surface oxygen bearing groups than that of the original AC. The effect ofsurface acidity and basity calculated from Boehm titration method was also evaluated from correlations as a function ofNaOH, NaHCO3, and Na2CO3 uptake. The surface modification of AC by HNO3 leads to an increase in the catalyticefficiency of AC/TiO2 catalysts, and the catalytic efficiency increases with increasing of HNO3 concentration.
KW - Activated carbon;TiO2;SEM;XRD;EDX;FT-IR;Boehm titration;Photocatalytic activity1. Introduction Environmental pollution by polutants in air and in waterdecomposition of these pollutants using TiO2 photocatalystshas been one of the most promisi
DO -
UR -
ER -

Ming-Liang Chen and Oh Won Chun. (2007). Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity. Carbon Letters, 8(2), 108-114.

Ming-Liang Chen and Oh Won Chun. 2007, "Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity", Carbon Letters, vol.8, no.2 pp.108-114.

Ming-Liang Chen, Oh Won Chun "Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity" Carbon Letters 8.2 pp.108-114 (2007) : 108.

Ming-Liang Chen, Oh Won Chun. Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity. 2007; 8(2), 108-114.

Ming-Liang Chen and Oh Won Chun. "Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity" Carbon Letters 8, no.2 (2007) : 108-114.

Ming-Liang Chen; Oh Won Chun. Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity. Carbon Letters, 8(2), 108-114.

Ming-Liang Chen; Oh Won Chun. Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity. Carbon Letters. 2007; 8(2) 108-114.

Ming-Liang Chen, Oh Won Chun. Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity. 2007; 8(2), 108-114.

Ming-Liang Chen and Oh Won Chun. "Preparation of AC/TiO2 Composites from Activated Carbon Modifiedby HNO3 and Their Photocatalytic Activity" Carbon Letters 8, no.2 (2007) : 108-114.