Abstract
Heterogeneous photocatalytic oxidation technology is currently a technology with the potential to solve environmental pollution and energy shortages. The key to this technology is to find and design efficient photocatalysts. Here, a series of inorganic coordination polymer quantum sheets (ICPQS)@graphene oxide (GO) composite photocatalysts are synthesized by adding GO to the synthesis process of ICPQS: {[CuII(H2O)4][CuI4(CN)6]}n. These composite photocatalysts were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, cyclic voltammetry, scanning electron microscopy, transmission electron microscopy, Zeta potential, and N2 adsorption/desorption isotherms. The photocatalytic degradation of methylene blue showed that the activity of ICPQS@GO composite photocatalysts is better than that of ICPQS. Among ICPQS@GO composite photocatalysts, the 10.6% ICPQS@GO composite photocatalyst has the best activity, which can reach 3.3 mg/(L min) at pH 3. This method of loading low–specific surface area photocatalysts onto GO to improve photocatalytic performance indicates the direction for the synthesis of highly efficient photocatalysts.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (No. 51878290), Guangxi Natural Science Foundation of China (No. 2015GXNSFBA139242); 2014 school-level scientific research project, Wuzhou University (2014B012), Guangxi Colleges and Universities Key Laboratory of Utilization of Microbial and Botanical Resources, Hechi University (2017HL004 and 2017HJA004), and Master’s degree awarded to the project construction fund.
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Li, S., Mo, Q., Lai, X. et al. Inorganic coordination polymer quantum sheets@graphene oxide composite photocatalysts: Performance and mechanism. Journal of Materials Research 34, 3220–3230 (2019). https://doi.org/10.1557/jmr.2019.207
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DOI: https://doi.org/10.1557/jmr.2019.207