Wuhan University of Technology

About: Wuhan University of Technology is a education organization based out in Wuhan, China. It is known for research contribution in the topics: Microstructure & Catalysis. The organization has 40384 authors who have published 36724 publications receiving 575695 citations. The organization is also known as: WUT.

Quantifying CO2 emissions from China's cement industry

Abstract: Cement is the most widely used material and contributes around 8% to the global anthropogenic CO2 emissions. In 2011 China produced 2.085 Gt cement (60% of the cement production of the world) but the carbon emission from cement industry still not accurately assessed. The LCA (Life Cycle Assessment) method was employed to thoroughly estimate China’s cement industry CO2 emissions, and results indicated that the carbon emissions of Portland cement clinker, Portland cement, and average cement in China are lower than developed countries. In 2011, the direct CO2 emission factor and manufactured CO2 emission factor of China’s average cement manufacture is just 0.4778 t/t and 0.5450 t/t, respectively, and the direct CO2 emission and manufacture CO2 emission from China’s cement industry is 0.9983 and 1.1364 Gt, respectively, from the life cycle view, carbon emission of cement industry and the neat carbon emission from cement industry is just 0.8553 and 0.6386 Gt respectively, the share of six carbon emission sources is calculated. The RM CO 2 , FD CO 2 , ED CO 2 , total TD CO 2 and CS CO 2 counts 53.8%, 28.3%, 7.94% and 0.86%, respectively, 29.64% of those carbon emission can be sink by carbonization during 100 years after it cast. The policies to close down outdated facilities and improve recovery the waste heat significantly reduced carbon emission from cement industry, through public, industrial, and technological policies. As the biggest cement producer and consumer in the world, a holistic approach is proposed to slash the carbon emission of cement industry.

Facile Fabrication and Enhanced Photocatalytic Performance of Ag/AgCl/rGO Heterostructure Photocatalyst

Abstract: Graphene/reduced graphene oxide (rGO) modification has been demonstrated to be an efficient route to improve the photocatalytic performance of various photocatalysts by promoting the effective separation of photogenerated electrons and holes. It is highly required to develop facile and environmental-friendly methods for the preparation of graphene-based photocatalytic materials. In this study, the Ag/AgCl/rGO heterostructure photocatalyst was fabricated by a mild oxidization reaction of hydrothermally prepared Ag/rGO in FeCl3 solution. It was found that the reduction of graphene oxide (GO) was accompanied with the in situ formation of metallic Ag in a Ag[(NH3)2]+-immobilized GO solution during hydrothermal treatment, while the following in situ oxidation of metallic Ag by FeCl3 solution resulted in the formation of strongly coupled Ag/AgCl/rGO heterostructure photocatalyst. The photocatalytic experimental results indicated that all the resultant Ag/AgCl/rGO nanocomposite photocatalysts exhibited a much hi...

Double-Shelled CdS- and CdSe-Cosensitized ZnO Porous Nanotube Arrays for Superior Photoelectrocatalytic Applications.

Abstract: The effective separation and transport of photoinduced electron–hole pairs in photoanodes is of great significance to photoelectrochemical and catalytic performance. Here, a facile and effective two-step strategy is developed to fabricate double-shelled ZnO/CdS/CdSe porous nanotube photoanodes from ZnO nanorod arrays (NRAs). Surprisingly, after the process of the deposition of CdS and CdSe, the ZnO nanorod arrays are partially dissolved, resulting in the formation of ZnO/CdS/CdSe porous nanotube arrays (NTAs). By virtue of their unique porous nanotube structure and cosensitization effect, the ZnO/CdS/CdSe porous NTAs show superior photoelectrochemical water-splitting performance and organic-pollutant-degradation ability under visible light irradiation, as well as excellent long-term photostability.