« Previous AbstractMultistimuli Response Micro- and Nanolayers of a Coordination Polymer Based on Cu(2) I(2) Chains Linked by 2-Aminopyrazine    Next AbstractApplication of Rough Ant Colony Algorithm in Adolescent Psychology »

Environ Technol

Title:		"Granular-carbon supported nano noble-metal (Au, Pd, Au-Pd): new dual-functional adsorbent/catalysts for effective removal of toluene at low-temperature and humid condition"
Author(s):		Cong Trung B; Nguyen Quang Tu L; Tran Minh Tri N; Thanh An N; Quang Long N;
Address:		"Faculty of Chemical Engineering, Ho Chi Minh City University of Technology - VNU- HCM, Ho Chi Minh City, Vietnam"
Journal Title:		Environ Technol
Year:		2021
Volume:		20191031
Issue:		11
Page Number:		1772 - 1786
DOI:		10.1080/09593330.2019.1680742
ISSN/ISBN:		1479-487X (Electronic) 0959-3330 (Linking)
Abstract:		"Treatment of the volatile organic compounds (VOCs) especially aromatic compounds such as toluene at low temperature and in the highly humid condition is currently a great challenge. New dual functional adsorbent/catalysts have been developed in this study to minimize the mass-transfer limitation at low temperature. The ready-to-practically-use materials, which consisted nano-sized noble metal (Au, Pd, Au-Pd) supported on granular carbon (GC) have been prepared using a metal-sol method. The surface morphology, and structure of these granular materials were characterized to confirm the presence of nano-sized noble metal on the GC as well as the properties of the dual functional adsorbent/catalyst. The results of catalytic performance revealed that the presence of Pd played an important role in the formation of nano Au particles, which were the catalytic active-site for toluene oxidation. At 60% relative humidity and 150 degrees C the dual functional adsorbent/catalyst, Au-Pd/GC, exhibited 97.2% toluene removal. Importantly, the kinetic analysis for the catalytic oxidation of nano-sized 0.5%Au-0.27%Pd/GC catalyst showed that the Langmuir-Hinshelwood mechanism provided a good fit towards the experimental data and allowed to determine the kinetic parameters of the reaction-rate law ( - rA = 1/ ?na 2/2). The activation energy, adsorption enthalpy of toluene, and oxygen on the catalyst were reported"
Keywords:		*Carbon Catalysis Kinetics Temperature *Toluene Nano Au dual functional adsorbent/catalyst granular carbon kinetic analysis toluene removal;
Notes:		"MedlineCong Trung, Bien Nguyen Quang Tu, Le Tran Minh Tri, Nguyen Thanh An, Ngo Quang Long, Nguyen eng England 2019/10/18 Environ Technol. 2021 Apr; 42(11):1772-1786. doi: 10.1080/09593330.2019.1680742. Epub 2019 Oct 31"