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Unique N doped Sn3O4 nanosheets as an efficient and stable photocatalyst for hydrogen generation under sunlight
Nanoscale ( IF 5.8 ) Pub Date : 2020-04-03 , DOI: 10.1039/c9nr10439a Sagar Balgude 1, 2, 3, 4, 5 , Yogesh Sethi 1, 2, 3 , Aarti Gaikwad 3, 6, 7 , Bharat Kale 1, 2, 3 , Dinesh Amalnerkar 8, 9, 10, 11 , Parag Adhyapak 1, 2, 3
Nanoscale ( IF 5.8 ) Pub Date : 2020-04-03 , DOI: 10.1039/c9nr10439a Sagar Balgude 1, 2, 3, 4, 5 , Yogesh Sethi 1, 2, 3 , Aarti Gaikwad 3, 6, 7 , Bharat Kale 1, 2, 3 , Dinesh Amalnerkar 8, 9, 10, 11 , Parag Adhyapak 1, 2, 3
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Unique N doped Sn3O4 nanosheets have been demonstrated successfully using a facile hydrothermal method. Investigations of the triclinic phase and the impurities were performed using powder X-ray diffraction analysis (XRD) and Raman spectroscopy. The morphological analysis demonstrated a rectangular intra- and inter-connected nanosheet-like structure. The length of the nanosheets was observed to be in the range of 200–300 nm and the thickness of the nanosheets was less than 10 nm. The optical study reveals an extended absorption edge into the visible region, owing to the incorporation of nitrogen into the lattice of Sn3O4, which was further confirmed using X-ray photoelectron spectroscopy (XPS). Considering the band structure in the visible region, the photocatalytic activities of pristine and N doped Sn3O4 nanosheets for hydrogen evolution from water under natural sunlight were investigated. 4% N-Sn3O4 showed a higher photocatalytic activity (654.33 μmol−1 h−1 0.1 g−1) for hydrogen production that was eight times that of pristine Sn3O4. The enhanced photocatalytic activity is attributed to the inhibition of charge carrier separation owing to the N doping, morphology and crystallinity of the N-Sn3O4 nanostructures. A stable efficiency was observed for three cycles, which clearly shows the stability of N-Sn3O4.
中文翻译：
独特的N掺杂Sn3O4纳米片作为有效和稳定的光催化剂，可在阳光下产生氢气
已使用简便的水热方法成功地证明了独特的N掺杂Sn 3 O 4纳米片。使用粉末X射线衍射分析（XRD）和拉曼光谱对三斜晶相和杂质进行研究。形态分析表明矩形的内部和内部连接的纳米片状结构。观察到纳米片的长度在200-300 nm的范围内，纳米片的厚度小于10 nm。光学研究表明，由于将氮掺入Sn 3 O 4的晶格中，吸收边缘扩展到了可见区域。，使用X射线光电子能谱（XPS）进一步证实。考虑到可见光区的能带结构，研究了原始和N掺杂的Sn 3 O 4纳米片在自然阳光下从水中析氢的光催化活性。4％的N-Sn 3 O 4对制氢的光催化活性更高（654.33μmol -1 h -1 0.1 g -1），是原始Sn 3 O 4的八倍。增强的光催化活性归因于由于N掺杂，N-Sn 3的形态和结晶性而导致的电荷载流子分离的抑制O 4纳米结构。在三个循环中观察到稳定的效率，这清楚地表明了N-Sn 3 O 4的稳定性。
更新日期：2020-04-24
中文翻译：
独特的N掺杂Sn3O4纳米片作为有效和稳定的光催化剂，可在阳光下产生氢气
已使用简便的水热方法成功地证明了独特的N掺杂Sn 3 O 4纳米片。使用粉末X射线衍射分析（XRD）和拉曼光谱对三斜晶相和杂质进行研究。形态分析表明矩形的内部和内部连接的纳米片状结构。观察到纳米片的长度在200-300 nm的范围内，纳米片的厚度小于10 nm。光学研究表明，由于将氮掺入Sn 3 O 4的晶格中，吸收边缘扩展到了可见区域。，使用X射线光电子能谱（XPS）进一步证实。考虑到可见光区的能带结构，研究了原始和N掺杂的Sn 3 O 4纳米片在自然阳光下从水中析氢的光催化活性。4％的N-Sn 3 O 4对制氢的光催化活性更高（654.33μmol -1 h -1 0.1 g -1），是原始Sn 3 O 4的八倍。增强的光催化活性归因于由于N掺杂，N-Sn 3的形态和结晶性而导致的电荷载流子分离的抑制O 4纳米结构。在三个循环中观察到稳定的效率，这清楚地表明了N-Sn 3 O 4的稳定性。
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