SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (8): 2084-2091.DOI: 10.1016/j.cjche.2020.03.030

• Catalysis, Kinetics and Reaction Engineering • 上一篇    下一篇

Systematic study of H2 production from catalytic photoreforming of cellulose over Pt catalysts supported on TiO2

Lan Lan1, Yan Shao1,2, Yilai Jiao3, Rongxin Zhang1, Christopher Hardacre1, Xiaolei Fan1   

  1. 1 Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, M13 9PL, United Kingdom;
    2 School of Chemical and Environmental Engineering, Wuyi University, Jiangmen 52920, China;
    3 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • 收稿日期:2020-02-01 修回日期:2020-03-19 出版日期:2020-08-28 发布日期:2020-09-19
  • 通讯作者: Christopher Hardacre, Xiaolei Fan
  • 基金资助:
    LL thanks the China Scholarship Council (CSC, file no. 201706950035)-University of Manchester joint studentship for supporting her PhD research. YS thanks the CSC for her academic visiting fellowship at The University of Manchester (file no. 201708440477) and the Foundation of Department of Education of Guangdong Province (No. 2017KZDXM085, 2018KZDXM070).

Systematic study of H2 production from catalytic photoreforming of cellulose over Pt catalysts supported on TiO2

Lan Lan1, Yan Shao1,2, Yilai Jiao3, Rongxin Zhang1, Christopher Hardacre1, Xiaolei Fan1   

  1. 1 Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, M13 9PL, United Kingdom;
    2 School of Chemical and Environmental Engineering, Wuyi University, Jiangmen 52920, China;
    3 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2020-02-01 Revised:2020-03-19 Online:2020-08-28 Published:2020-09-19
  • Contact: Christopher Hardacre, Xiaolei Fan
  • Supported by:
    LL thanks the China Scholarship Council (CSC, file no. 201706950035)-University of Manchester joint studentship for supporting her PhD research. YS thanks the CSC for her academic visiting fellowship at The University of Manchester (file no. 201708440477) and the Foundation of Department of Education of Guangdong Province (No. 2017KZDXM085, 2018KZDXM070).

摘要: Hydrogen (H2) production from photocatalytic reforming of cellulose is a promising way for sustainable H2 to be generated. Herein, we report a systematic study of the photocatalytic reforming of cellulose over Pt/m-TiO2 (i.e. mixed TiO2, 80% of anatase and 20% of rutile) catalysts in water. The optimum operation condition was established by studying the effect of Pt loading, catalyst concentration, cellulose concentration and reaction temperature on the gas production rate of H2 (rH2) and CO2 (rCO2), suggesting an optimum operation condition at 40 ℃ with 1.0 g·L-1 of cellulose and 0.75 g·L-1 of 0.16-Pt/m-TiO2 catalyst (with 0.16 wt% Pt loadting) to achieve a relatively sound photocatalytic performance with rH2 = 9.95 μmol·h-1. It is also shown that although the photoreforming of cellulose was operated at a relatively mild condition (i.e. with an UV-A lamp irradiation at 40 ℃ in the aqueous system), a low loading of Pt at ~0.16 wt% on m-TiO2 could promote the H2 production effectively. Additionally, by comparing the reaction order expressed from both rH2 (a1) and rCO2 (a2) with respect to cellulose and water, the possible mechanism of H2 production was proposed.

关键词: Hydrogen (H2) production, Catalytic photoreforming, Cellulose, Kinetics, Titanium dioxide (TiO2)

Abstract: Hydrogen (H2) production from photocatalytic reforming of cellulose is a promising way for sustainable H2 to be generated. Herein, we report a systematic study of the photocatalytic reforming of cellulose over Pt/m-TiO2 (i.e. mixed TiO2, 80% of anatase and 20% of rutile) catalysts in water. The optimum operation condition was established by studying the effect of Pt loading, catalyst concentration, cellulose concentration and reaction temperature on the gas production rate of H2 (rH2) and CO2 (rCO2), suggesting an optimum operation condition at 40 ℃ with 1.0 g·L-1 of cellulose and 0.75 g·L-1 of 0.16-Pt/m-TiO2 catalyst (with 0.16 wt% Pt loadting) to achieve a relatively sound photocatalytic performance with rH2 = 9.95 μmol·h-1. It is also shown that although the photoreforming of cellulose was operated at a relatively mild condition (i.e. with an UV-A lamp irradiation at 40 ℃ in the aqueous system), a low loading of Pt at ~0.16 wt% on m-TiO2 could promote the H2 production effectively. Additionally, by comparing the reaction order expressed from both rH2 (a1) and rCO2 (a2) with respect to cellulose and water, the possible mechanism of H2 production was proposed.

Key words: Hydrogen (H2) production, Catalytic photoreforming, Cellulose, Kinetics, Titanium dioxide (TiO2)