Results 261 to 270 of about 1,029,665 (311)

Room-temperature catalytic decomposition of ozone

Atmospheric Environment (1967), 1972
Abstract Thirty-five materials including charcoal, metals and metal oxides were tested for their room-temperature catalytic efficiency in decomposing ozone. Charcoal and nickelous oxide were found to be the best catalysts. A one-half inch thick filter bed of these materials initially removed 95 and 80 per cent, respectively, of the ozone from a 1 ft3
William D. Ellis, Paul V. Tometz
openaire   +1 more source

Tuning the Micro-coordination Environment of Al in Dealumination Y Zeolite to Enhance Electron Transfer at the Cu-Mn Oxides Interface for Highly Efficient Catalytic Ozonation of Toluene at Low Temperatures.

Environmental Science and Technology, 2022
The development of stable, highly active, and inexpensive catalysts for the ozone catalytic oxidation of volatile organic compounds (VOCs) is challenging but of great significance.
Qiming Shao, Shuangshuang Wei, Xueyu Hu, Hao Dong, Tiancheng Wen, Lei Gao, Chao Long   +6 more
semanticscholar   +1 more source

Nanometer CeO2 doped high silica ZSM-5 heterogeneous catalytic ozonation of sulfamethoxazole in water.

Journal of Hazardous Materials, 2021
A novel CeO2 doped high silica ZSM-5(CeO2@HSZSM-5) composite was originally fabricated via ammonia precipitation for the catalytic ozonation of sulfamethoxazole (SMX).
X. Zuo, Senlin Ma, Qiyuan Wu, J. Xiong, Jiajie He, Cong Ma, Zhongbing Chen   +6 more
semanticscholar   +1 more source

Bifunctional Fe for Induced Graphitization and Catalytic Ozonation Based on a Fe/N-Doped Carbon-Al2O3 Framework: Theoretical Calculations Guided Catalyst Design and Optimization.

Environmental Science and Technology, 2021
Heterogeneous catalytic ozonation is regarded as a feasible technology in advanced wastewater treatment. Catalytic performance, mass transfer, and mechanical strength are the key elements for large-scale applications of catalysts.
Changpei Ouyang, K. Wei, Xia Huang, M. Gamal El-Din, Xiaoyuan Zhang   +4 more
semanticscholar   +1 more source

Organics removal in high strength petrochemical wastewater with combined microbubble-catalytic ozonation process.

Chemosphere, 2021
Ozonation is a well-known and widely applied advanced oxidation process (AOP) for industrial wastewater treatment, while the ozonation efficiency might be limited by low mass transfer, poor solubility, and rapid decomposition rate of ozone molecules in ...
L. Jothinathan, Q. Cai, S. Ong, J. Y. Hu
semanticscholar   +1 more source

Catalytic decomposition of ozone in air

Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, 1997
Abstract The catalytic decomposition of ozone was investigated by using a tubular fixed‐bed reactor. The performance tests and reaction kinetic studies were conducted for two catalysts, i.e., MnO2 and Pt/γ ‐Al2O3 (symbolized as Dash‐220). The experiments were carried out at various constant reaction temperatures (288–338 K) and space velocities (24,000
C.Y. Chang, W.T. Tsai, L. Cheng, C.Y. Chiu, W.H. Huang, Y.H. Yu, H.T. Liou, Y. Ku, J.N. Chen   +8 more
openaire   +1 more source

Paraben degradation using catalytic ozonation over volcanic rocks

Environmental Science and Pollution Research, 2017
Parabens are widely used as antimicrobial and preservatives in pharmaceutical and personal care products and are continuously reaching the water streams. Conventional wastewater treatments are proven inefficient on the removal of this kind of contaminants from wastewater.
João F, Gomes, Maria Emília, Quinta-Ferreira, Raquel, Costa, Rosa M, Quinta-Ferreira, Rui C, Martins   +4 more
openaire   +2 more sources

Catalytic ozonation of sulfamethoxazole over Fe3O4/Co3O4 composites

Chemosphere, 2019
In this study, Fe3O4/Co3O4 composites were prepared and applied in the catalytic ozonation of sulfamethoxazole (SMX). Various parameters including initial solution pH, Fe3O4/Co3O4 composites dose, O3 dose and SMX concentration were investigated.
Hai Chen, Jianlong Wang
openaire   +2 more sources

Degradation of Malathion and Parathion by Ozonation, Photolytic Ozonation, and Heterogeneous Catalytic Ozonation Processes

CLEAN – Soil, Air, Water, 2011
AbstractThe oxidation of organophosphorus pesticides (OPPs), such as malathion and parathion, in aqueous solution was studied using conventional ozonation (O3), photolytic ozonation (O3/UV, O3/UV/H2O2), and heterogeneous catalytic ozonation (O3/TiO2/UV) processes.
Beduk, Fatma, Aydin, Mehmet Emin, Ozcan, Senar   +2 more
openaire   +1 more source

Non-catalytic and catalytic ozonation of simple halohydrins in water

Journal of Environmental Chemical Engineering, 2019
Abstract This study compares degradation of two hazardous halohydrins, namely 2,3-dibromopropan-1-ol (2,3-DBP) and 1,3-dichloro-2-propanol (1,3-DCP) by non-catalytic ozonation in acidic, neutral and basic water and catalytic ozonation with Co loaded on Fe prepared by (i) co-precipitation (Co-ppt) and (ii) a simple physical mixing (Mixed) method.
Asogan N. Gounden, Sooboo Singh, Sreekantha B. Jonnalagadda   +2 more
openaire   +1 more source