Abstract
ZnO/bone char (ZnO/BC) composites were successfully synthesized by the precipitation of a ZnO precursor on pyrolytic bone char. The effects of bone char size, mass ratio of ZnO to BC, and molar ratio of ZnO to triethylamine (TEA) on the microstructure, specific surface area, and light absorbance of ZnO/BC were studied. The photocatalytic property of ZnO/BC was evaluated by the degradation of methylene blue. Results show that with a uniform nano-ZnO particle layer distributed evenly on the bone char surface, ZnO/BC has the strongest light absorbance and can effectively degrade methylene blue. The photocatalytic performance of ZnO/BC is related to the light absorbance of the photocatalyst, as well as the amount and distribution state of the loaded ZnO. This study indicates that bovine bone waste can be used as a nano-photocatalyst carrier to prepare photocatalytic composites, which is not only a good way to clean wastewater but also an ideal solution to utilize animal bone waste.
Highlights
Billions of animals are used daily to meet the dietary needs of humans and carnivores
ZnO/bone char (ZnO/bone char (BC)) composites were prepared as we reported before [15], namely, zinc acetate dehydrate was added to 55 ◦ C absolute ethanol solution and dissolved with a little of the capping agent triethylamine (TEA)
Zinc acetate dehydrate and TEA were mixed at a molar ratio of 1:1 or 2:1 to form 0.2 mol/L of nano ZnO precursor sol in absolute ethanol solution
Summary
Billions of animals are used daily to meet the dietary needs of humans and carnivores. Bone is one of the appendant byproducts. If not handled in time, it becomes solid waste, breeds bacteria, endangers human health, and pollutes the environment. Bone products are worth $4000 to the total output value after processing a ton of raw bone materials. The largest daily-output bone species in the world are beef bones, lamb bones, and pork bones. Slaughter plants usually process bones into bone grains, sell them to agricultural and sideline product manufacturing companies for further processing
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
