Synergistic Effect of N and Ni2+ on Nanotitania in Photocatalytic Reduction of CO2

被引：49

作者：

Fan, Jun ^{[1
]}

Liu, En-zhou ^{[1
]}

Tian, Lei ^{[1
]}

Hu, Xiao-yun ^{[2
]}

He, Qi ^{[1
]}

Sun, Tao ^{[1
]}

机构：

[1] Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China

[2] Northwest Univ, Dept Phys, Xian 710069, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE | 2011年 / 137卷 / 03期

关键词：

Nano-TiO2; Nitrogen and nickel codoping; Sol-gol; CO2; reduction; Methanol; VISIBLE-LIGHT; CARBON-DIOXIDE; CONCENTRATED SUNLIGHT; TIO2; PHOTOCATALYSTS; TITANIUM-DIOXIDE; PHOTOREDUCTION; NANOPARTICLES; NITROGEN; WATER; CATALYSTS;

D O I：

10.1061/(ASCE)EE.1943-7870.0000311

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

Nitrogen and nickel codoped nanotitania (N-Ni/TiO2) photocatalysts for producing methanol by photocatalytic reduction of CO2 were prepared by an improved sol-gol method. The catalysts were characterized by XRD, HRTEM, DES, FTIR, TG-DSC, and UV-Vis, respectively. The experimental results indicated that nano-N-Ni/TiO2 had better properties than the pure nanotitania (TiO2), N doped titania (N/TiO2), and Ni2+ doped titania (Ni/TiO2), considering their performance of photoresponse and photocatalytic reduction of CO2. The methanol yield could reach 482.0 mu mol/g-cat under optimal conditions. Additionally, the synergetic effect of N and Ni2+ on nano-TiO2 in photocatalytic reduction of CO2 was explained, and the mechanism of photocatalytic reduction CO2 on N-Ni/TiO2 catalyst was proposed. DOI: 10.1061/(ASCE)EE.1943-7870.0000311. (C) 2011 American Society of Civil Engineers.

引用

页码：171 / 176

页数：6

共 32 条

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