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(La0.4Sm0.5Yb0.1)2Zr2O7 (LSYZO) coating was prepared by atmospheric plasma spray. Sm2Zr2O7 (SZO) coating was also prepared in the same conditions as a contrast. Microstructures and phases of LSYZO coatings were investigated by scanning electrical microscopy (SEM) and X-ray diffraction (XRD), respectively. The thermal conductivities of the two coatings were measured. The results show that the phase composition of LSYZO coating has no change after plasma spraying. The adhesion strength of LSYZO coating is 22 MPa, which is comparable with that of SZO coating. And LSYZO coating has lifetime of about 40 cycles. The thermal conductivity of LSYZO coating is lower than that of SZO coating, which mainly depends on the complex structure of LSYZO ceramic.

A heterogeneous electro-Fenton system with fluffy clump steel wire (FCSW) was described for the degradation of p-nitrophenol (p-NP) in water. The influences of the initial pH, initial concentration of FCSW, applied current density on the p-NP, and total organic carbon (TOC) removal percentages were investigated. Compared with the homogeneous electro-Fenton process, the presence of the FCSW catalyst significantly improved the degradation efficiency, the p-NP removal percentages could reach 94.31% after 60 min under the appropriate operating conditions that initial pH value of 3.0, initial FCSW concentration of 3.0 g/L, current density of 3.0 mA/cm2, and the TOC removal percentages could reach 78.96% after 180 min. Aromatic intermediates and carboxylic acids had been identified by chromatographic techniques, and a plausible reaction pathway for p-NP mineralization by heterogeneous electro-Fenton process with FCSW was proposed. The catalytic reusability of FCSW was ultimately evaluated for the repeat...