NDLI: Ordered Mesoporous TiO 2 / Activated Carbon for Adsorption and Photocatalysis of Acid Red 18 Solution

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Ordered Mesoporous TiO 2 / Activated Carbon for Adsorption and Photocatalysis of Acid Red 18 Solution

Content Provider	Semantic Scholar
Author	Zhang, Ji Liu, Fu Gao, Jianmin Chen, Yao Hao, Xinmin
Copyright Year	2017
Abstract	Ordered mesoporous TiO2, loaded on walnut shell-based activated carbon, was prepared via sol-gel and ultrasonic-assisted technology. The obtained composites (M-TiO2/AC) were characterized via X-ray diffraction, N2 adsorption-desorption isotherms, and Fourier transform infrared spectroscopy. The adsorption–photocatalytic reduction capabilities were calculated using the removal rate of Acid Red 18 solution via UV spectrophotometry. The specific area of M-TiO2/AC increased from 563 m2·g-1 to 881 m2·g-1, compared to TiO2/AC. The removal rate was 92.3% when the Acid Red 18 with a concentration of 80 mg·L-1 was subjected to illumination for 2 h with 0.15 g of M-TiO2/AC. Under this condition the removal rate of Acid Red 18 solution by MTiO2/AC was higher than that of TiO2/AC (83.7%), or AC (73.1%), which was attributed to the regular mesoporous structure, pore-pore synergistic amplification, and TiO2 photocatalysis. Acid Red 18 might be oxidized and decomposed into small molecular substances, such as CO2 and H2O, by strong oxidizing free hydroxyl radicals provided during the photocatalytic process by M-TiO2. The adsorption and photocatalytic processes followed the pseudo-second-order kinetic model. Internal diffusion and external diffusion processes influenced the adsorption rate.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://bioresources.cnr.ncsu.edu/wp-content/uploads/2017/10/BioRes_12_4_9086_Zhang_LGCH_Ordered_Mesopor_TiO2_Activ_C_Adsorp_Photocatal_Acid_Red_12602.pdf
Language	English
Access Restriction	Open
Subject Keyword	Activated Charcoal Carbon Dioxide Computed Tomography Scanning Systems Contour line Digraphs and trigraphs Eighty Hydroxyl Radical Kinetics Pseudo brand of pseudoephedrine Ranitidine 150 MG Oral Tablet Salicylic Acid 0.4 MG/MG Medicated Patch Salicylic Acid 20 MG/ML Medicated Liquid Soap Sol-gel Spectroscopy, Near-Infrared Synergy Ultrasonics (sound) Water
Content Type	Text
Resource Type	Article

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