Abstract
A two-step method was used to load TiO2 on a cement matrix, and zeolite was chosen as intermediate support. TiO2@Zeolite composite coated photocatalytic cement-based material (PCM) was prepared. Some advanced characterization technologies including X-ray diffraction (XRD), scanning electronic microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and BET specific surface area (SSA) test were applied to characterize the physicochemical properties of as-prepared PCM. Photocatalytic degradation of trichloroacetamide (TCAcAm) was conducted to evaluate its photocatalytic efficiency. Results show that TiO2@Zeolite composite can improve the adsorption ability of PCM and TiO2 particles were dispersed on the surface of PCM homogeneously providing abundant active sites for photocatalytic reactions. Moreover, TiO2@Zeolite composite can reduce the negative effect of cement on TiO2. The synergetic effect of TiO2@Zeolite composite can remarkably improve the photocatalytic degradation rate, reaching up to 97.8%. TiO2@Zeolite composite coated PCM holds great promise to eliminate water pollution.
Highlights
Nowadays, water pollution is a big environmental health concern worldwide as multiple harmful substances such as antibiotics, microbes, and dyestuffs are detected in drinking water
TiO2@Zeolite Composite Coated photocatalytic cementbased material (PCM) Fabrication 22 g cement and 8.8 g water were mixed for 5 min by a mixer, and the fresh cement paste was casted in a round mold with a diameter of 50 mm and a height of 8 mm
The samples were labeled as n-TZ-m-PCM, where n stands for the final thermal treatment temperature, m% stands for the mass ratio of
Summary
Water pollution is a big environmental health concern worldwide as multiple harmful substances such as antibiotics, microbes, and dyestuffs are detected in drinking water. Zeolite/TiO2 Photocatalytic Cement-Based Composite the derived nitrogen-disinfection by-products (N-DBPs) are proved to be more toxic than C-DBPs (Chu et al, 2012). Degradation of trichloroacetamide (TCAcAm) was conducted to evaluate the purification effect of the as-prepared TiO2@zeolite composite coated PCM. TiO2@Zeolite Composite Coated PCM Fabrication 22 g cement and 8.8 g water were mixed for 5 min by a mixer, and the fresh cement paste was casted in a round mold with a diameter of 50 mm and a height of 8 mm. The samples were labeled as n-TZ-m-PCM, where n stands for the final thermal treatment temperature, m% stands for the mass ratio of TABLE 1 | Chemical composition of natural zeolite/%. Gas chromatography-mass spectrometry (GC/MS) was used to measure the TCAcAm in the upper extractant solution
Sign-in/Register to view highlights & summary 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.
