黄振星,李亚飞,李越湘,彭绍琴.聚乙烯醇对光还原Ni2+制备纳米Ni性能及染料敏化制氢的影响[J].分子催化,2017,31(2):181-187
聚乙烯醇对光还原Ni2+制备纳米Ni性能及染料敏化制氢的影响
Effect of Polyvinyl Alcohol on Performance of Ni Nanoparticles Prepared by Photoreduction of Ni2+ and Its Dye-sensitized Photocatalytic Hydrogen Production
投稿时间:2017-01-10  修订日期:2017-02-15
DOI:
中文关键词:  纳米镍  聚乙烯醇  染料敏化  制氢
英文关键词:nano-Ni  polyvinyl alcohol  dye sensitization  hydrogen production
基金项目:国家自然科学基金资助(21163012,21563019);江西省教育厅科技项目(GJJ13065);江西省自然科学基金资助(20151BAB203013);化工资源有效利用国家重点实验室开放基金(CRE-2016-C-102)资助
作者单位E-mail
黄振星 南昌大学 化学系, 江西 南昌 330031  
李亚飞 南昌大学 化学系, 江西 南昌 330031  
李越湘 南昌大学 化学系, 江西 南昌 330031 liyx@ncu.edu.cn 
彭绍琴 南昌大学 化学系, 江西 南昌 330031  
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中文摘要:
      采用染料曙红-Y(EY)作为敏化剂将Ni2+光还原制备纳米Ni.在该反应体系中,不加入PVA时,光还原所得到的纳米Ni为球状粒子;而加入PVA,由于其模板导向作用,多数纳米镍呈现棒状.吸附在Ni表面的PVA能够促进光生电子从EY向棒状镍转移,从而提高其染料敏化制氢的活性和稳定性.
英文摘要:
      Ni nanoparticles were fabricated by photoreduction of Ni2+ using dye eosin-Y as a sensitizer. In this reaction system, in the absence of PVA sphere-like Ni nanoparticles were obtained by the photoreduction; whereas in the presence of PVA, due to its template guiding role, the prepared Ni nanoparticles showed rod-like morphology. The PVA adsorbed on rod-like Ni nanoparticles can promote the transfer of photoinduced electrons from eosin-Y to Ni, leading to increase of the activity and stability of the dye-sensitized photocatalytic hydrogen production.
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