中文摘要：

有六角形的像血小板的形态学的碳涂的 SiC@C nanocapsules (NC ) 被简单直接水流(DC ) 制作弧分泌物血浆方法。SiC@C NC 是 monocrystalline，在尺寸的 120-150 nm，和约 50 nm 厚。同样准备的 SiC@C NC 的形成包括了成核截断八面原文如此种子和进在充满碳的气氛的六角形的 nanoplatelets 的种子的随后的各向异性的生长。SiC@C NC 上的混乱的碳层被热处理在 650 楴湯挠浯潰湵獤猠潨敷 ? 牤浡瑡捩污祬映獡整 ? 牤杵爠汥慥敳椠 ? 潭敤慲整祬愠楣楤? 潳畬楴湯琠慨 ? 湩渠略牴污挠湯楤楴湯 ? 湡 ? 硥楨楢整 ? 湥慨据摥琠敨慲数瑵捩攠晦 ' 太 B 愠慧湩瑳琠湥洠摯汥挠湡散 ? 变换成 SiC@SiO ₂ NC 的 SiO ₂ 壳散汬挠汵畴敲 ? 湩愠搠獯 ? 敤数摮湥 ? 慭湮牥

英文摘要：

Carbon-coated SiC@C nanocapsules （NCs） with a hexagonal platelet-like morphology were fabricated by a simple direct current （DC） arc-discharge plasma method. The SiC@C NCs were monocrystalline, 120-150 nm in size, and approximately 50 nm thick. The formation of the as-prepared SiC@C NCs included nucleation of truncated octahedral SiC seeds and subsequent anisotropic growth of the seeds into hexagonal nanoplatelets in a carbon-rich atmosphere. The disordered carbon layers on the SiC@C NCs were converted into SiO2 shells of SiC@SiO2 NCs by heat treatment at 650 ℃ in air, during which the shape and inherent characteristics of the crystalline SiC core were obtained. The interface evolution from carbon to SiO2 shells endowed the SiC@SiO2 NCs with enhanced photocatalytic activity due to the hydrophilic and transparent nature of the SiO2 shell, as well as to the photosensitive SiC nanocrystals. The band gap of the nanostructured SiC core was determined to be 2.70 eV. The SiC@SiO2 NCs degraded approximately 95% of methylene blue in 160 min under visible light irradiation.