Correction: Promotional mechanism of enhanced denitration activity with Cu modification in a Ce/TiO-ZrO catalyst for a low temperature NH-SCR system.

[This corrects the article DOI: 10.1039/D1RA06325A.].

Promotional mechanism of enhanced denitration activity with Cu modification in a Ce/TiO-ZrO catalyst for a low temperature NH-SCR system.

This study aims to investigate the enhanced low temperature denitration activity and promotional mechanism of a cerium-based catalyst through copper modification. In this paper, copper and cerium oxides were supported on TiO-ZrO by an impregnation method, their catalytic activity tests of selective catalytic reduction (SCR) of NO with NH were carried out and their physicochemical properties were characterized. The CuCe/TiO-ZrO catalyst shows obviously enhanced NH-SCR activity at low temperature (<300 °C), which is associated with the well dispersed active ingredients and the synergistic effect between copper and cerium species (Cu + Ce ↔ Cu + Ce), and the increased ratios of surface chemisorbed oxygen and Cu/Cu lead to the enhanced low-temperature SCR activity.

Enhancement of catalytic activity in NH-SCR reaction by promoting dispersibility of CuCe/TiO-ZrO with ultrasonic treatment.

A series of CuCe-modified TiO-ZrO catalysts synthesized by stepwise impregnation method and ultrasonic-assisted impregnation method were investigated to research the removal of NO in the simulated flue gas. Results showed that the CuCe/TiO-ZrO catalyst prepared by ultrasonic-assisted impregnation method exhibited the superior NO conversion, in which higher than 85% NO was degraded at the temperature range of 250-400 °C and the highest NO conversion of 94% at 350 °C. It proves that ultrasonic treatment can markedly improve the performance of catalysts.

lncRNA Erbb4-IR is downregulated in prostate carcinoma and predicts prognosis.

Long non-coding (lnc) RNA Erbb4-IR has been associated with diabetic renal injury; however, its roles in other diseases remain unknown. Therefore, the present study investigated the involvement of Erbb4-IR in prostate carcinoma. Reverse transcription-quantitative PCR was used to analyze gene expression in tissue samples collected from patients with prostate carcinoma.