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Generation of Hydrogen Gas Using CuCr2O4-g-C3N4 Nanocomposites under Illumination by Visible Light
ACS Omega ( IF 3.7 ) Pub Date : 2021-02-03 , DOI: 10.1021/acsomega.0c06193
Reda M. Mohamed 1, 2 , Mohammad W. Kadi 1
ACS Omega ( IF 3.7 ) Pub Date : 2021-02-03 , DOI: 10.1021/acsomega.0c06193
Reda M. Mohamed 1, 2 , Mohammad W. Kadi 1
Affiliation
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In this research, nanocomposites made of CuCr2O4-g-C3N4 accommodating distinct contents of CuCr2O4 (1–4 wt %) nanoparticles (NPs) were endorsed for hydrogen gas production after illumination by visible light in the presence of aqueous glycerol solution. The ultrasonication-mixture method was applied to assure the homogeneous distribution of CuCr2O4 NPs over synthesized mesoporous g-C3N4. Such nanocomposites possess suppressed recombination between the photoinduced charges. High-resolution transmission electron microscopy and X-ray photoelectron spectroscopy examinations affirmed the formation of CuCr2O4-g-C3N4 heterojunctions. The separation between the induced charges and the photocatalytic performance with the CuCr2O4 NP amount were investigated. The CuCr2O4-g-C3N4 heterojunction of 3 wt % CuCr2O4 content was documented as the optimal heterojunction. Upgraded hydrogen gas generation was attained over the optimal heterojunction with the extent of ten and thirty times as those registered for pure CuCr2O4 and g-C3N4 specimens, respectively, under illumination by visible light. The photocatalytic performance acquired by the diverse synthesized specimens was assessed not only by their effectiveness to absorb light in the visible region but also by their potential to separate the photoinduced charges.
中文翻译：
可见光照射下使用CuCr 2 O 4 -gC 3 N 4纳米复合材料产生氢气
在这项研究中，由CuCr 2 O 4 -gC 3 N 4制成的纳米复合材料可容纳不同含量的CuCr 2 O 4（1-4 wt％）纳米颗粒（NPs），并在可见光照射下在氢气存在下被认可用于氢气生产。甘油水溶液。采用超声混合法确保CuCr 2 O 4 NP在合成介孔gC 3 N 4上的均匀分布。这种纳米复合材料具有光诱导电荷之间的抑制的重组。高分辨率透射电子显微镜和X射线光电子能谱检查证实了CuCr 2 O 4 -gC 3 N 4异质结的形成。研究了CuCr 2 O 4 NP量下感应电荷的分离和光催化性能。3 wt％CuCr 2 O 4的CuCr 2 O 4 -gC 3 N 4异质结内容被记录为最佳异质结。在最佳异质结上，在可见光照射下，氢气的升级生成程度分别是纯CuCr 2 O 4和gC 3 N 4试样的十倍和三十倍。各种合成样品获得的光催化性能不仅通过其吸收可见区域光的效率来评估，还可以通过其分离光致电荷的潜力来评估。
更新日期：2021-02-16
中文翻译：
可见光照射下使用CuCr 2 O 4 -gC 3 N 4纳米复合材料产生氢气
在这项研究中，由CuCr 2 O 4 -gC 3 N 4制成的纳米复合材料可容纳不同含量的CuCr 2 O 4（1-4 wt％）纳米颗粒（NPs），并在可见光照射下在氢气存在下被认可用于氢气生产。甘油水溶液。采用超声混合法确保CuCr 2 O 4 NP在合成介孔gC 3 N 4上的均匀分布。这种纳米复合材料具有光诱导电荷之间的抑制的重组。高分辨率透射电子显微镜和X射线光电子能谱检查证实了CuCr 2 O 4 -gC 3 N 4异质结的形成。研究了CuCr 2 O 4 NP量下感应电荷的分离和光催化性能。3 wt％CuCr 2 O 4的CuCr 2 O 4 -gC 3 N 4异质结内容被记录为最佳异质结。在最佳异质结上，在可见光照射下，氢气的升级生成程度分别是纯CuCr 2 O 4和gC 3 N 4试样的十倍和三十倍。各种合成样品获得的光催化性能不仅通过其吸收可见区域光的效率来评估，还可以通过其分离光致电荷的潜力来评估。
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