Science 2020 08;369(6505):775-776
Department of Physics, University of California Davis, Davis, CA 95616, USA.
J Environ Sci (China) 2021 Mar 21;101:36-48. Epub 2020 Aug 21.
School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Cu-Co multiple-oxides modified on HNO-pretreated activated coke (AC) were optimized for the simultaneous removal of gaseous CO and elemental mercury (Hg) at low temperature (< 200 °C). It was found that 2%CuOx-10%CoOx/AC catalyst calcined at 400°C resulted in the coexistence of complex oxides including CuO, CuO, CoO, CoO and CoO phases, which might be good for the simultaneous catalytic oxidation of CO by Co-species and removal of Hg by Cu-species, benefiting from the synergistic catalysis during the electro-interaction between Co and Cu cations (CoO ⇌ CoO and CuO ⇌ CuO). The catalysis removal of CO oxidation was obviously depended on the reaction temperature obtaining 94. Read More
Sci Total Environ 2021 Feb 26;757:143807. Epub 2020 Nov 26.
Institute of Environmental Sciences (CML), Leiden University, Leiden 2300, RA, the Netherlands; National Institute of Public Health and the Environment (RIVM), Center for Safety of Substances and Products, Bilthoven 3720 BA, the Netherlands.
With the expanding nanotechnology, nanoparticles (NPs) embedded products are used in the agricultural sector to improve soil fertility. Thus, two typical metal oxides NPs and their mixtures were applied in different doses to evaluate the impacts on soil microbes. CuO and ZnO NPs boosted soil microbial communities as reflected by the increased number of extractable bacterial or fungal groups and the enlarged values of Chao 1, ACE, and Shannon indices. Read More
J Hazard Mater 2020 Jun 1;391:121642. Epub 2020 Feb 1.
School of Energy and Environmental Engineering, Key Laboratory of Clean Energy Utilization and Pollutant Control in Tianjin, Hebei University of Technology, China.
To enhance the photocatalytic activity of TiO, a new preparation method has been proposed to synthesize the catalysts by introducing Cu-MOF as a precursor and performing a blackening process via a mixture with NaBH for TiO nanoparticles (CuO-TiO(mb)). The results showed that the removal efficiency of xylene under ultraviolet and visible light over CuO-TiO(mb) was 3.45 times higher than that of the catalysts prepared by impregnation of CuO on the surfaces of TiO (CuO-TiO(d)) and 12. Read More
ACS Omega 2018 Dec 27;3(12):18499-18509. Epub 2018 Dec 27.
Department of Chemical Engineering, Jadavpur University, Kolkata 700032, India.
A glass fiber-epoxy resin (GFER) framework derived from mixed waste printed circuit boards (MWPCBs) was utilized to prepare a cost-effective, reusable Mo-Cu bimetallic Bronsted-Lewis solid acid catalyst through wet-impregnation under near-infrared radiation (NIRR) activation. The efficacy of the novel Mo-Cu catalyst was assessed in the synthesis of glucose through hydrolysis of jute () fiber, and the process parameters were optimized (Mo precursor loading: 1.0 wt %, catalyst concentration: 5 wt %, hydrolysis temperature: 80 °C, and hydrolysis time: 10 min) through Taguchi orthogonal design. Read More
Environ Sci Pollut Res Int 2019 Sep 22;26(26):27470-27481. Epub 2019 Jul 22.
Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Ibadan, Nigeria.
Unanticipated increase in the use of silver (Ag) and copper oxide (CuO) nanoparticles (NPs) due to their antimicrobial properties is eliciting environmental health concern because of their coexistence in the aquatic environment. Therefore, we investigated the genetic and systemic toxicity of the individual NPs and their mixture (1:1) using the piscine micronucleus (MN) assay, haematological, histopathological (skin, gills and liver) and hepatic oxidative stress analyses [malondialdehyde (MDA), reduced glutathione (GSH), superoxide dismutase (SOD) and catalase (CAT)] in the African mud catfish, Clarias gariepinus. The fish were exposed to sublethal concentrations (6. Read More